Installer reference guide

Transcription

1 Instller referene guide Dikin Altherm Low temperture split + ERLQ CA EHVZ04S18CB EHVZ08S18CB Instller referene guide Dikin Altherm Low temperture split English

2 Tle of Contents Tle of Contents 1 Generl sfety preutions Aout the doumenttion... 3 Instller referene guide Mening of wrnings nd symols For the instller Generl Instlltion site Refrigernt Brine Wter Eletril Aout the doumenttion Aout this doument Instller referene guide t glne Aout the ox Overview: Aout the ox Outdoor unit To unpk the outdoor unit To remove the essories from the outdoor unit Indoor unit To unpk the indoor unit To remove the essories from the indoor unit Aout the units nd options Overview: Aout the units nd options Identifition Identifition lel: Outdoor unit Identifition lel: Indoor unit Comining units nd options Possile options for the outdoor unit Possile options for the indoor unit Possile omintions of indoor unit nd outdoor unit Applition guidelines Overview: Applition guidelines Setting up the spe heting system Multiple rooms Two LWT zones Setting up the domesti hot wter tnk System lyout Integrted DHW tnk Seleting the volume nd desired temperture for the DHW tnk Setup nd onfigurtion DHW tnk DHW pump for instnt hot wter DHW pump for disinfetion Setting up the energy metering Produed het Consumed energy Norml kwh rte power supply Preferentil kwh rte power supply Setting up the power onsumption ontrol Permnent power limittion Power limittion tivted y digitl inputs Power limittion proess Setting up n externl temperture sensor Preprtion Overview: Preprtion Prepring instlltion site Instlltion site requirements of the outdoor unit Additionl instlltion site requirements of the outdoor unit in old limtes Instlltion site requirements of the indoor unit Prepring refrigernt piping Refrigernt piping requirements Refrigernt piping insultion Prepring wter piping Wter iruit requirements Formul to lulte the expnsion vessel prepressure To hek the wter volume nd flow rte Chnging the pre-pressure of the expnsion vessel To hek the wter volume: Exmples Prepring eletril wiring Aout prepring eletril wiring Aout preferentil kwh rte power supply Overview of eletril onnetions exept externl tutors Overview of eletril onnetions for externl nd internl tutors Instlltion Overview: Instlltion Opening the units Aout opening the units To open the outdoor unit To open the indoor unit To open the swith ox over of the indoor unit Mounting the outdoor unit Aout mounting the outdoor unit Preutions when mounting the outdoor unit To provide the instlltion struture To instll the outdoor unit To provide dringe To prevent the outdoor unit from flling over Mounting the indoor unit Aout mounting the indoor unit Preutions when mounting the indoor unit To instll the indoor unit Conneting the refrigernt piping Aout onneting the refrigernt piping Preutions when onneting the refrigernt piping Guidelines when onneting the refrigernt piping Pipe ending guidelines To flre the pipe end To rze the pipe end Using the stop vlve nd servie port To onnet the refrigernt piping to the outdoor unit To onnet the refrigernt piping to the indoor unit Cheking the refrigernt piping Aout heking the refrigernt piping Preutions when heking the refrigernt piping To hek for leks To perform vuum drying Chrging refrigernt Aout hrging refrigernt Preutions when hrging refrigernt To determine the dditionl refrigernt mount To determine the omplete rehrge mount To hrge refrigernt To fix the fluorinted greenhouse gses lel Conneting the wter piping Aout onneting the wter piping Preutions when onneting the wter piping To onnet the wter piping To onnet the reirultion piping To onnet the pressure relief vlve to the drin To fill the wter iruit To fill the domesti hot wter tnk To insulte the wter piping Conneting the eletril wiring Aout onneting the eletril wiring Aout eletril ompline Preutions when onneting the eletril wiring Guidelines when onneting the eletril wiring To onnet the eletril wiring on the outdoor unit Dikin Altherm Low temperture split

3 1 Generl sfety preutions To onnet the eletril wiring on the indoor unit To onnet the min power supply To onnet the kup heter power supply To onnet the user interfe To onnet the shut-off vlve To onnet the eletril meters To onnet the domesti hot wter pump To onnet the lrm output To onnet the power onsumption digitl inputs To onnet the sfety thermostt (norml losed ontt) Finishing the outdoor unit instlltion To finish the outdoor unit instlltion To lose the outdoor unit Finishing the indoor unit instlltion To fix the user interfe over to the indoor unit To lose the indoor unit Configurtion Overview: Configurtion To onnet the PC le to the swith ox To ess the most used ommnds To opy the system settings from the first to the seond user interfe To opy the lnguge set from the first to the seond user interfe Quik wizrd: Set the system lyout fter first power ON Bsi onfigurtion Quik wizrd: Lnguge / time nd dte Quik wizrd: Stndrd Quik wizrd: Options Quik wizrd: Cpities (energy metering) Spe heting ontrol Domesti hot wter ontrol Contt/helpdesk numer Advned onfigurtion/optimiztion Spe heting opertion: dvned Domesti hot wter ontrol: dvned Het soure settings System settings Menu struture: Overview user settings Menu struture: Overview instller settings Commissioning Overview: Commissioning Preutions when ommissioning Cheklist efore ommissioning Cheklist during ommissioning To hek the minimum flow rte Air purge funtion To perform test run To perform n tutor test run Underfloor heting sreed dryout Hnd-over to the user Mintenne nd servie Overview: Mintenne nd servie Mintenne sfety preutions Opening the indoor unit Cheklist for yerly mintenne of the outdoor unit Cheklist for yerly mintenne of the indoor unit To drin the domesti hot wter tnk Trouleshooting Overview: Trouleshooting Preutions when trouleshooting Solving prolems sed on symptoms Symptom: The unit is NOT heting s expeted Dikin Altherm Low temperture split Symptom: The ompressor does NOT strt (spe heting or domesti wter heting) Symptom: The pump is mking noise (vittion) Symptom: The pressure relief vlve opens Symptom: The wter pressure relief vlve leks Symptom: The spe is NOT suffiiently heted t low outdoor tempertures Symptom: The pressure t the tpping point is temporrily unusul high Symptom: Deortion pnels re pushed wy due to swollen tnk Symptom: Tnk disinfetion funtion is NOT ompleted orretly (AH-error) Solving prolems sed on error odes Error odes: Overview Disposl Overview: Disposl To pump down To strt nd stop fored ooling Tehnil dt Overview: Tehnil dt Dimensions nd servie spe Dimensions nd servie spe: Outdoor unit Dimensions nd servie spe: Indoor unit Center of grvity Center of grvity: Outdoor unit Components Components: Outdoor unit Components: Swith ox (outdoor unit) Components: Indoor unit Components: Swith ox (indoor unit) Piping digrm Piping digrm: Outdoor unit Piping digrm: Indoor unit Wiring digrm Wiring digrm: Outdoor unit Wiring digrm: Indoor unit Tehnil speifitions Tehnil speifitions: Outdoor unit Tehnil speifitions: Indoor unit Opertion rnge Opertion rnge: Heting nd ooling Opertion rnge: Domesti hot wter ESP urve ESP urve: Indoor unit Glossry Field settings tle 97 1 Generl sfety preutions 1.1 Aout the doumenttion The originl doumenttion is written in English. All other lnguges re trnsltions. The preutions desried in this doument over very importnt topis, follow them refully. The instlltion of the system, nd ll tivities desried in the instlltion mnul nd the instller referene guide must e performed y n uthorized instller Mening of wrnings nd symols DANGER Indites sitution tht results in deth or serious injury. Instller referene guide 3

4 1 Generl sfety preutions DANGER: RISK OF ELECTROCUTION Indites sitution tht ould result in eletroution. DANGER: RISK OF BURNING Indites sitution tht ould result in urning euse of extreme hot or old tempertures. WARNING Indites sitution tht ould result in deth or serious injury. CAUTION Indites sitution tht ould result in minor or moderte injury. Indites sitution tht ould result in equipment or property dmge. Indites useful tips or dditionl informtion. 1.2 For the instller Generl If you re not sure how to instll or operte the unit, ontt your deler. Improper instlltion or tthment of equipment or essories ould result in eletri shok, short-iruit, leks, fire or other dmge to the equipment. Only use essories, optionl equipment nd spre prts mde or pproved y Dikin. WARNING Mke sure instlltion, testing nd pplied mterils omply with pplile legisltion (on top of the instrutions desried in the Dikin doumenttion). CAUTION Wer dequte personl protetive equipment (protetive gloves, sfety glsses, ) when instlling, mintining or serviing the system. WARNING Ter prt nd throw wy plsti pkging gs so tht noody, espeilly hildren, n ply with them. Possile risk: suffotion. DANGER: RISK OF BURNING Do NOT touh the refrigernt piping, wter piping or internl prts during nd immeditely fter opertion. It ould e too hot or too old. Give it time to return to norml temperture. If you must touh it, wer protetive gloves. Do NOT touh ny identl leking refrigernt. WARNING Provide dequte mesures to prevent tht the unit n e used s shelter y smll nimls. Smll nimls tht mke ontt with eletril prts n use mlfuntions, smoke or fire. Do NOT ple ny ojets or equipment on top of the unit. Do NOT sit, lim or stnd on the unit. Works exeuted on the outdoor unit re est done under dry wether onditions to void wter ingress. In ordne with the pplile legisltion, it might e neessry to provide logook with the produt ontining t lest: informtion on mintenne, repir work, results of tests, stnd-y periods, Also, t lest, following informtion must e provided t n essile ple t the produt: Instrutions for shutting down the system in se of n emergeny Nme nd ddress of fire deprtment, polie nd hospitl Nme, ddress nd dy nd night telephone numers for otining servie In Europe, EN378 provides the neessry guidne for this logook Instlltion site Provide suffiient spe round the unit for serviing nd ir irultion. Mke sure the instlltion site withstnds the unit's weight nd virtion. Mke sure the re is well ventilted. Mke sure the unit is level. Do NOT instll the unit in the following ples: In potentilly explosive tmospheres. In ples where there is mhinery tht emits eletromgneti wves. Eletromgneti wves my distur the ontrol system, nd use mlfuntion of the equipment. In ples where there is risk of fire due to the lekge of flmmle gses (exmple: thinner or gsoline), ron fire, ignitle dust. In ples where orrosive gs (exmple: sulphurous id gs) is produed. Corrosion of opper pipes or soldered prts my use the refrigernt to lek Refrigernt If pplile. See the instlltion mnul or instller referene guide of your pplition for more informtion. Mke sure refrigernt piping instlltion omplies with pplile legisltion. In Europe, EN378 is the pplile stndrd. Mke sure the field piping nd onnetions re not sujeted to stress. WARNING During tests, NEVER pressurize the produt with pressure higher thn the mximum llowle pressure (s indited on the nmeplte of the unit). CAUTION Do NOT touh the ir inlet or luminum fins of the unit. Instller referene guide 4 Dikin Altherm Low temperture split

5 1 Generl sfety preutions WARNING Tke suffiient preutions in se of refrigernt lekge. If refrigernt gs leks, ventilte the re immeditely. Possile risks: Exessive refrigernt onentrtions in losed room n led to oxygen defiieny. Toxi gs my e produed if refrigernt gs omes into ontt with fire. WARNING Alwys reover the refrigernt. Do NOT relese them diretly into the environment. Use vuum pump to evute the instlltion. After ll the piping hs een onneted, mke sure there is no gs lek. Use nitrogen to perform gs lek detetion. To void ompressor rekdown, do NOT hrge more thn the speified mount of refrigernt. When the refrigernt system is to e opened, refrigernt must e treted ording to the pplile legisltion. WARNING Mke sure there is no oxygen in the system. Refrigernt my only e hrged fter performing the lek test nd the vuum drying. In se re-hrge is required, refer to the nmeplte of the unit. It sttes the type of refrigernt nd neessry mount. The unit is ftory hrged with refrigernt nd depending on pipe sizes nd pipe lengths some systems require dditionl hrging of refrigernt. Only use tools exlusively for the refrigernt type used in the system, this to ensure pressure resistne nd prevent foreign mterils from entering into the system. Chrge the liquid refrigernt s follows: If A siphon tue is present (i.e., the ylinder is mrked with "Liquid filling siphon tthed") A siphon tue is NOT present Then Chrge with the ylinder upright. Chrge with the ylinder upside down Brine If pplile. See the instlltion mnul or instller referene guide of your pplition for more informtion. WARNING The seletion of the rine MUST e in ordne with the pplile legisltion. WARNING Tke suffiient preutions in se of rine lekge. If rine leks, ventilte the re immeditely nd ontt your lol deler. WARNING The mient temperture inside the unit n get muh higher thn tht of the room, e.g. 70 C. In se of rine lek, hot prts inside the unit n rete hzrdous sitution. WARNING The use nd instlltion of the pplition MUST omply with the sfety nd environmentl preutions speified in the pplile legisltion Wter If pplile. See the instlltion mnul or instller referene guide of your pplition for more informtion. Mke sure wter qulity omplies with EU diretive 98/83 EC Eletril DANGER: RISK OF ELECTROCUTION Turn OFF ll power supply efore removing the swith ox over, onneting eletril wiring or touhing eletril prts. Disonnet the power supply for more thn 1 minute, nd mesure the voltge t the terminls of min iruit pitors or eletril omponents efore serviing. The voltge MUST e less thn 50 V DC efore you n touh eletril omponents. For the lotion of the terminls, see the wiring digrm. Do NOT touh eletril omponents with wet hnds. Do NOT leve the unit unttended when the servie over is removed. WARNING If NOT ftory instlled, min swith or other mens for disonnetion, hving ontt seprtion in ll poles providing full disonnetion under overvoltge tegory III ondition, shll e instlled in the fixed wiring. Open refrigernt ylinders slowly. Chrge the refrigernt in liquid form. Adding it in gs form my prevent norml opertion. CAUTION When the refrigernt hrging proedure is done or when pusing, lose the vlve of the refrigernt tnk immeditely. If the vlve is not losed immeditely, remining pressure might hrge dditionl refrigernt. Possile onsequene: Inorret refrigernt mount. Dikin Altherm Low temperture split Instller referene guide 5

6 2 Aout the doumenttion WARNING ONLY use opper wires. Mke sure the field wiring omplies with the pplile legisltion. All field wiring must e performed in ordne with the wiring digrm supplied with the produt. NEVER squeeze undled les nd mke sure they do not ome in ontt with the piping nd shrp edges. Mke sure no externl pressure is pplied to the terminl onnetions. Mke sure to instll erth wiring. Do NOT erth the unit to utility pipe, surge sorer, or telephone erth. Inomplete erth my use eletril shok. Mke sure to use dedited power iruit. NEVER use power supply shred y nother ppline. Mke sure to instll the required fuses or iruit rekers. Mke sure to instll n erth lekge protetor. Filure to do so my use eletri shok or fire. When instlling the erth lekge protetor, mke sure it is omptile with the inverter (resistnt to high frequeny eletri noise) to void unneessry opening of the erth lekge protetor. Instll power les t lest 1 metre wy from televisions or rdios to prevent interferene. Depending on the rdio wves, distne of 1 metre my not e suffiient. WARNING After finishing the eletril work, onfirm tht eh eletril omponent nd terminl inside the eletril omponents ox is onneted seurely. Mke sure ll overs re losed efore strting up the unit. Only pplile if the power supply is three phse, nd the ompressor hs n ON/OFF strting method. If there exists the possiility of reversed phse fter momentry lk out nd the power goes on nd off while the produt is operting, tth reversed phse protetion iruit lolly. Running the produt in reversed phse n rek the ompressor nd other prts. 2 Aout the doumenttion 2.1 Aout this doument Trget udiene Authorised instllers Doumenttion set This doument is prt of doumenttion set. The omplete set onsists of: Generl sfety preutions: Sfety instrutions tht you must red efore instlling Formt: Pper (in the ox of the indoor unit) Indoor unit instlltion mnul: Instlltion instrutions Formt: Pper (in the ox of the indoor unit) Outdoor unit instlltion mnul: Instlltion instrutions Formt: Pper (in the ox of the outdoor unit) Instller referene guide: Preprtion of the instlltion, tehnil speifitions, good prties, referene dt, Formt: Digitl files on Addendum ook for optionl equipment: Additionl info out how to instll optionl equipment Formt: Pper (in the ox of the indoor unit) + Digitl files on Ltest revisions of the supplied doumenttion my e ville on the regionl Dikin wesite or vi your deler. The originl doumenttion is written in English. All other lnguges re trnsltions. 2.2 Instller referene guide t glne Chpter Generl sfety preutions Aout the doumenttion Aout the ox Aout the units nd options Applition guidelines Preprtion Instlltion Configurtion Commissioning Hnd over to the user Mintenne nd servie Trouleshooting Disposl Tehnil dt Glossry Field settings tle Desription Sfety instrutions tht you must red efore instlling Wht doumenttion exists for the instller How to unpk the units nd remove their essories How to identify the units Possile omintions of units nd options Vrious instlltion setups of the system Wht to do nd know efore going on site Wht to do nd know to instll the system Wht to do nd know to onfigure the system fter it is instlled Wht to do nd know to ommission the system fter it is onfigured Wht to give nd explin to the user How to mintin nd servie the units Wht to do in se of prolems How to dispose of the system Speifitions of the system Definition of terms Tle to e filled in y the instller, nd kept for future referene Note: There is lso n instller settings tle in the user referene guide. This tle hs to e filled in y the instller nd hnded over to the user. Instller referene guide 6 Dikin Altherm Low temperture split

7 3 Aout the ox 3 Aout the ox 3.1 Overview: Aout the ox This hpter desries wht you hve to do fter the oxes with the outdoor nd indoor unit re delivered on-site. It ontins informtion out: Unpking nd hndling the units Removing the essories from the units Keep the following in mind: At delivery, the unit must e heked for dmge. Any dmge must e reported immeditely to the rrier's lims gent. Bring the pked unit s lose s possile to its finl instlltion position to prevent dmge during trnsport. 3.2 Outdoor unit To remove the essories from the outdoor unit 1 Lift the outdoor unit. CAUTION Only hndle the outdoor unit s follows: 57kg To unpk the outdoor unit 2 Remove the essories t the ottom of the pkge d d Outdoor unit instlltion mnul Fluorinted greenhouse gses lel Multilingul fluorinted greenhouse gses lel Unit mounting plte Indoor unit To unpk the indoor unit 2 Dikin Altherm Low temperture split Instller referene guide 7

8 4 Aout the units nd options To remove the essories from the indoor unit 1 Remove the srews t the top of the unit. 2 Remove the top pnel. 3 Remove the srews t the front of the unit. 4 Push on the utton on the ottom of the front plte. 5 Remove the front plte. WARNING: Shrp edges Tke the front plte on the upper prt insted of the lower prt. Wth your fingers, there re shrp edges on the lower prt of the front plte. 4 Aout the units nd options 4.1 Overview: Aout the units nd options This hpter ontins informtion out: Identifying the outdoor unit Identifying the indoor unit Comining outdoor nd indoor units Comining the outdoor unit with options Comining the indoor unit with options ~e Identifition g 4 When instlling or serviing severl units t the sme time, mke sure NOT to swith the servie pnels etween different models Identifition lel: Outdoor unit Lotion f Remove the essories. d e 4 f g h Model identifition Exmple: ER L Q 006 CA V3 ER Code Explntion Europen split outdoor pir het pump L Low wter temperture mient zone: 10~ 20 C Q Refrigernt R410A 006 Cpity lss CA V3 Model series Power supply Generl sfety preutions Addendum ook for optionl equipment Indoor unit instlltion mnul d Opertion mnul e Seling ring for shut-off vlve f Shut-off vlve with drin/fill point g Shut-off vlve h User interfe over 7 Reinstll the top pnel nd the front plte. Instller referene guide 8 Dikin Altherm Low temperture split

9 4 Aout the units nd options Identifition lel: Indoor unit Lotion Model identifition Exmple: E HV Z 04 S 18 CB 3V E HV Z Code Europen model Dikin Altherm Low temperture split Desription Floor-stnding indoor unit with integrted tnk Dul-zone model 04 Cpity lss S Integrted tnk mteril: Stinless steel 18 Integrted tnk volume CB 3V Model series Bkup heter model 4.3 Comining units nd options Possile options for the outdoor unit Drin pn (EKDP008CA) The drin pn is required to gther the drin from the outdoor unit. The drin pn kit onsists of: Drin pn Instlltion rkets For instlltion instrutions, see the instlltion mnul of the drin pn. Drin pn heter (EKDPH008CA) The drin pn heter is required to void freezing-up of the drin pn. It is reommended to instll this option in older regions with possile low mient tempertures or hevy snowfll. For instlltion instrutions, see the instlltion mnul of the drin pn heter. In se the drin pn heter is used, the jumper JP_DP on the servie PCB on the outdoor unit MUST e ut. After utting the jumper, you MUST reset the outdoor unit to tivte this funtion. U-ems (EKFT008CA) The U-ems re instlltion rkets on whih the outdoor unit n e instlled. It is reommended to instll this option in older regions with possile low mient tempertures or hevy snowfll. For instlltion instrutions, see the instlltion mnul of the outdoor unit Possile options for the indoor unit User interfe (EKRUCBL*) The user interfe nd possile dditionl user interfe re ville s n option. The dditionl user interfe n e onneted: To hve oth: ontrol lose to the indoor unit, room thermostt funtionlity in the prinipl spe to e heted. To hve n interfe ontining other lnguges. Following user interfes re ville: EKRUCBL1 ontins following lnguges: Germn, Frenh, Duth, Itlin. EKRUCBL2 ontins following lnguges: English, Swedish, Norwegin, Finnish. EKRUCBL3 ontins following lnguges: English, Spnish, Greek, Portuguese. EKRUCBL4 ontins following lnguges: English, Turkish, Polish, Romnin. EKRUCBL5 ontins following lnguges: Germn, Czeh, Slovenin, Slovkin. EKRUCBL6 ontins following lnguges: English, Crotin, Hungrin, Estonin. EKRUCBL7 ontins following lnguges: English, Germn, Russin, Dnish. Lnguges on the user interfe n e uploded y PC softwre or opied from n user interfe to the other. For instlltion instrutions, see "7.9.9 To onnet the user interfe" on pge 35. Simplified user interfe (EKRUCBS) The simplified user interfe n only e used in omintion with the min user interfe. The simplified user interfe ts s room thermostt nd needs to e instlled in the room tht you wnt it to ontrol. For instlltion instrutions, see the instlltion nd opertion mnul of the simplified user interfe. Room thermostt (EKRTWA, EKRTR1) You n onnet n optionl room thermostt to the indoor unit. This thermostt n either e wired (EKRTWA) or wireless (EKRTR1). For instlltion instrutions, see the instlltion mnul of the room thermostt nd ddendum ook for optionl equipment. Remote sensor for wireless thermostt (EKRTETS) You n use wireless indoor temperture sensor (EKRTETS) only in omintion with the wireless thermostt (EKRTR1). For instlltion intrutions, see the instlltion mnul of the room thermostt nd ddendum ook for optionl equipment. Digitl I/O PCB (EKRP1HB) The digitl I/O PCB is required to provide following signls: Alrm output Spe heting On/OFF output Chngeover to externl het soure For instlltion instrutions, see the instlltion mnul of the digitl I/O PCB nd ddendum ook for optionl equipment. Demnd PCB (EKRP1AHTA) To enle the power sving onsumption ontrol y digitl inputs you must instll the demnd PCB. Instller referene guide 9

10 5 Applition guidelines For instlltion instrutions, see the instlltion mnul of the demnd PCB nd ddendum ook for optionl equipment. Remote indoor sensor (KRCS01-1) By defult the internl user interfe sensor will e used s room temperture sensor. As n option the remote indoor sensor n e instlled to mesure the room temperture on nother lotion. For instlltion instrutions, see the instlltion mnul of the remote indoor sensor nd ddendum ook for optionl equipment. The remote indoor sensor n only e used in se the user interfe is onfigured with room thermostt funtionlity. You n only onnet either the remote indoor sensor or the remote outdoor sensor. Remote outdoor sensor (EKRSCA1) By defult the sensor inside the outdoor unit will e used to mesure the outdoor temperture. As n option the remote outdoor sensor n e instlled to mesure the outdoor temperture on nother lotion (e.g. to void diret sunlight) to hve n improved system ehviour. For instlltion instrutions, see the instlltion mnul of the remote outdoor sensor. You n only onnet either the remote indoor sensor or the remote outdoor sensor. PC onfigurtor (EKPCCAB) The PC le mkes onnetion etween the swith ox of the indoor unit nd PC. It gives the possiility to uplod different lnguge files to the user interfe nd indoor prmeters to the indoor unit. For the ville lnguge files, ontt your lol deler. The softwre nd orresponding operting instrutions re ville on For instlltion instrutions, see the instlltion mnul of the PC le nd "8 Configurtion" on pge 38. Het pump onvetor (FWXV) For providing spe heting/ooling, it is possile to use het pump onvetors (FWXV). For instlltion instrutions, refer to the instlltion mnul of the het pump onvetors, nd the ddendum ook for optionl equipment Possile omintions of indoor unit nd outdoor unit Indoor unit Outdoor unit ERLQ004CAV3 ERLQ006CAV3 ERLQ008CAV3 EHVZ04S18CB3V O EHVZ08S18CB3V O O 5 Applition guidelines 5.1 Overview: Applition guidelines The purpose of the pplition guidelines is to give glne of the possiilities of the Dikin het pump system. The illustrtions in the pplition guidelines re ment for referene only, nd re NOT to e used s detiled hydruli digrms. The detiled hydruli dimensioning nd lning re NOT shown, nd re the responsiility of the instller. For more informtion out the onfigurtion settings to optimize het pump opertion, see "8 Configurtion" on pge 38. This hpter ontins pplition guidelines for: Setting up the spe heting system Setting up the domesti hot wter tnk Setting up the energy metering Setting up the power onsumption Setting up n externl temperture sensor 5.2 Setting up the spe heting system The Dikin het pump system supplies leving wter to het emitters in one or more rooms. Beuse the system offers wide flexiility to ontrol the temperture in eh room, you need to nswer the following questions first: How mny rooms re heted y the Dikin het pump system? Whih het emitter types re used in eh room nd wht is their design leving wter temperture? One the spe heting requirements re ler, Dikin reommends to follow the setup guidelines elow. If n externl room thermostt is used, the externl room thermostt will ontrol the room frost protetion. However, the room frost protetion is only possile if the leving wter temperture ontrol on the unit's user interfe is turned ON. In se n externl room thermostt is used nd room frost protetion needs to e gurnteed in ll onditions, then you hve to set uto emergeny [A.5.1.2] to Multiple rooms Two LWT zones This unit is designed to deliver wter t 2 different tempertures. A typil instlltion onsists of underfloor heting t lower temperture nd rditors t higher wter temperture. In this doument: Min zone = Zone with the lowest design temperture Additionl zone = Zone with the highest design temperture Typil exmple: Instller referene guide 10 Dikin Altherm Low temperture split

11 5 Applition guidelines Room (zone) Het emitters: Design temperture Living room (min zone) Under floor heting: 35 C Bed rooms (dditionl zone) Het pump onvetors: 45 C Setup d e M f g h h h h A B HPC1 D E i i j HPC2 C FHL1 FHL2 FHL3 k HPC3 A Additionl leving wter temperture zone B Room 1 C Room 2 D Min leving wter temperture zone E Room 3 Outdoor unit Indoor unit Het exhnger d Bkup heter e Motorised 3-wy vlve (mixing the min zone) f Additionl pump g Min pump h Shut-off vlve i Colletor (field supply) j Remote ontroller of the het pump onvetors (field supply) k User interfe (field supply) HPC1...3 Het pump onvetors (field supply) FHL1...3 Floor heting loops (field supply) For the min zone: the room temperture is ontrolled y the user interfe, whih is used s room thermostt. For the dditionl zone: The externl thermostt is diretly onneted to the indoor unit. The desired room temperture is set vi the externl thermostt nd the thermostti vlves of the rditors in eh room. The heting demnd signl from the externl thermostt is onneted to the digitl input on the indoor unit (X2M/1 nd X2M/4). The indoor unit will only supply the desired dditionl leving wter temperture when there is n tul demnd. Configurtion Setting Unit temperture ontrol: #: [A.2.1.7] Code: [C-07] Vlue 2 (RT ontrol): Unit opertion is deided sed on the mient temperture of the user interfe. Note: Min room = user interfe used s room thermostt funtionlity Other rooms = externl room thermostt funtionlity j Setting Numer of wter temperture zones: #: [A.2.1.8] Code: [7-02] In se of het pump onvetors: Externl room thermostt for the dditionl zone: #: [A.2.2.5] Code: [C-06] Shut-off vlve output Benefits Vlue 1 (2 LWT zones): Min + dditionl 1 (Thermo ON/OFF): When the used externl room thermostt or het pump onvetor n only send thermo ON/OFF ondition. Set to follow the thermo demnd of the min zone. Comfort. The smrt room thermostt funtionlity n derese or inrese the desired leving wter temperture sed on the tul room temperture (modultion). Effiieny. Depending on the demnd, the indoor unit supplies different leving wter temperture mthing the design temperture of the different het emitters. Under floor heting hs the est performne with Altherm LT. 5.3 Setting up the domesti hot wter tnk System lyout Integrted DHW tnk M M d e h g i i d e f g h i j k FHL1...3 UI HPC1...3 k UI f i i HPC1 j HPC2 j HPC3 FHL1 FHL2 FHL3 Outdoor unit Indoor unit Het exhnger Bkup heter Motorised 3 wve vlve (swith etween spe heting nd domesti hot wter) Motorised 3 wy vlve (mixing the min zone) Min pump Additionl pump Shut-off vlve Colletor (field supply) Domesti hot wter tnk Floor heting loops (field supply) User interfe (field supply) Het pump onvetors (field supply) Dikin Altherm Low temperture split Instller referene guide 11

12 5 Applition guidelines Seleting the volume nd desired temperture for the DHW tnk People experiene wter s hot when its temperture is 40 C. Therefore, the DHW onsumption is lwys expressed s equivlent hot wter volume t 40 C. However, you n set the DHW tnk temperture t higher temperture (exmple: 53 C), whih is then mixed with old wter (exmple: 15 C). Seleting the desired temperture for the DHW tnk onsists of: 1 Determining the DHW onsumption (equivlent hot wter volume t 40 C). 2 Determining the desired temperture for the DHW tnk. Energy sving tips If the DHW onsumption differs from dy to dy, you n progrm weekly shedule with different desired DHW tnk tempertures for eh dy. The lower the desired DHW tnk temperture, the more ost effetive. By seleting lrger DHW tnk, you n lower the desired DHW tnk temperture. The het pump itself n produe domesti hot wter of mximum 55 C (50 C if outdoor temperture is low). The eletril resistne integrted in the het pump n inrese this temperture. However, this onsumes more energy. Dikin reommends to set the desired DHW tnk temperture elow 55 C to void using the kup heter. The higher the outdoor temperture, the etter the performne of the het pump. If energy pries re the sme during the dy nd the night, Dikin reommends to het up the DHW tnk during the dy. If energy pries re lower during the night, Dikin reommends to het up the DHW tnk during the night. When the het pump produes domesti hot wter, it nnot het up spe. When you need domesti hot wter nd spe heting t the sme, Dikin reommends to produe the domesti hot wter during the night when there is lower spe heting demnd. Determining the DHW onsumption Answer the following questions nd lulte the DHW onsumption (equivlent hot wter volume t 40 C) using the typil wter volumes: Question How mny showers re needed per dy? How mny ths re needed per dy? How muh wter is needed t the kithen sink per dy? Are there ny other domesti hot wter needs? Typil wter volume 1 shower = 10 min 10 l/min = 100 l 1 th = 150 l 1 sink = 2 min 5 l/min = 10 l Exmple: If the DHW onsumption of fmily (4 persons) per dy is s follows: 3 showers 1 th 3 sink volumes Then the DHW onsumption = (3 100 l)+(1 150 l)+(3 10 l)=480 l Determining the volume nd desired temperture for the DHW tnk Formul V 1 =V 2 +V 2 (T 2 40)/(40 T 1 ) V 1 V 2 T 2 T 1 If: V 2 =180 l T 2 =54 C T 1 =15 C Then V 1 =280 l Exmple DHW onsumption (equivlent hot wter volume t 40 C) Required DHW tnk volume if only heted one DHW tnk temperture Cold wter temperture Setup nd onfigurtion DHW tnk For lrge DHW onsumptions, you n het up the DHW tnk severl times during the dy. To het up the DHW tnk to the desired DHW tnk temperture, you n use the following energy soures: Thermodynmi yle of the het pump Eletril kup heter For more informtion out optimizing the energy onsumption for produing domesti hot wter, see "8 Configurtion" on pge DHW pump for instnt hot wter Setup f g h i h i f g Indoor unit DHW tnk DHW pump (field supply) Shower (field supply) Cold wter Domesti hot wter OUT Reirultion onnetion By onneting DHW pump, instnt hot wter n e ville t the tp. The DHW pump nd the instlltion re field supply nd the responsiility of the instller. For more informtion out onneting the reirultion onnetion: see "7 Instlltion" on pge 22. Configurtion For more informtion, see "8 Configurtion" on pge 38. You n progrm shedule to ontrol the DHW pump vi the user interfe. For more informtion, see the user referene guide DHW pump for disinfetion Setup h i d e f g d e f g h Indoor unit DHW tnk DHW pump (field supply) Heter element (field supply) Non return vlve (field supply) Shower (field supply) Cold wter Domesti hot wter OUT Instller referene guide 12 Dikin Altherm Low temperture split

13 5 Applition guidelines i Reirultion onnetion The DHW pump is field-supplied nd its instlltion is the responsiility of the instller. The temperture of the DHW tnk n e set to mximum 60 C. If pplile legisltion requires higher temperture for disinfetion, you n onnet DHW pump nd heter element s shown ove. If pplile legisltion requires disinfetion of the wter piping until the tpping point, you n onnet DHW pump nd heter element (if needed) s shown ove. To ensure omplete disinfetion, you hve to open the tpping point. WARNING Configurtion When opening the tpping point, the wter temperture n e up to 55 C. The indoor unit n ontrol DHW pump opertion. For more informtion, see "8 Configurtion" on pge Setting up the energy metering Vi the user interfe, you n red out the following energy dt: Produed het Consumed energy You n red out the energy dt: For spe heting For domesti hot wter prodution You n red out the energy dt: Per month Per yer The lulted produed het nd onsumed energy re n estimtion, the ury nnot e gurnteed Produed het The sensors used to lulte the produed het re lirted utomtilly. The produed het is lulted internlly sed on: The leving nd entering wter temperture The flow rte Setup nd onfigurtion: No dditionl equipment needed. The onsumed energy is lulted internlly sed on: The tul power input of the outdoor unit The set pity of the kup heter The voltge Setup nd onfigurtion: To get urte energy dt, mesure the pity (resistne mesurement) nd set the pity vi the user interfe for the kup heter (step 1). Mesuring the onsumed energy Applile for ll models. Preferred method euse of higher ury. Requires externl power meters. Setup nd onfigurtion: For the speifitions of eh type of meter, see "14 Tehnil dt" on pge 71. When using eletril power meters, set the numer of pulses/ kwh for eh power meter vi the user interfe. Consumed energy dt for EHVZ16 model will only e ville if this setting is onfigured. When mesuring the eletril power onsumption, mke sure ALL power input of the system is overed y the eletril power meters Norml kwh rte power supply Generl rule One power meter tht overs the entire system is suffiient. Setup Connet the power meter to X5M/7 nd X5M/8. Power meter type In se of Single-phse outdoor unit Bkup heter supplied from single-phse grid Three-phse outdoor unit Use power meter Single-phse Three-phse Consumed energy You n use the following methods to determine the onsumed energy: Clulting Mesuring You nnot omine lulting the onsumed energy (exmple: for kup heter) nd mesuring the onsumed energy (exmple: for outdoor unit). If you do so, the energy dt will e invlid. Clulting the onsumed energy Only pplile for EHVZ Dikin Altherm Low temperture split Instller referene guide 13

14 5 Applition guidelines Exmple A Single-phse power meter d e B f A Outdoor unit B Indoor unit Eletril inet (L 1 /N) Power meter (L 1 /N) Fuse (L 1 /N) d Outdoor unit (L 1 /N) e Indoor unit (L 1 /N) f Bkup heter (L 1 /N) Exeption You n use seond power meter if: A Three-phse power meter e f B d g A Outdoor unit B Indoor unit Eletril inet (L 1 /L 2 /L 3 /N) Power meter (L 1 /L 2 /L 3 /N) Fuse (L 1 /L 2 /L 3 /N) d Fuse (L 1 /N) e Outdoor unit (L 1 /L 2 /L 3 /N) f Indoor unit (L 1 /L 2 /L 3 /N) g Bkup heter (L 1 /N) The power rnge of one meter is insuffiient. The eletril meter nnot esily e instlled in the eletril inet. 230 V nd 400 V three-phse grids re omined (very unommon), euse of tehnil limittions of power meters. Connetion nd setup: Connet the seond power meter to X5M/9 nd X5M/10. In the softwre the power onsumption dt of oth meters is dded so you do NOT hve to set whih meter overs whih power onsumption. You only need to set the numer of pulses of eh power meter. See "5.4.4 Preferentil kwh rte power supply" on pge 14 for n exmple with two power meters Preferentil kwh rte power supply Generl rule Power meter 1: Mesures the outdoor unit. Power meter 2: Mesures the rest (i.e. indoor unit nd kup heter). Setup Connet power meter 1 to X5M/7 nd X5M/8. Connet power meter 2 to X5M/9 nd X5M/10. Power meter types Power meter 1: Single- or three-phse power meter ording to the power supply of the outdoor unit. Power meter 2: Use single-phse power meter. 5.5 Setting up the power onsumption ontrol The power onsumption ontrol: Is only pplile for EHVZ Allows you to limit the power onsumption of the entire system (sum of outdoor unit, indoor unit nd kup heter). Configurtion: Set the power limittion level nd how it hs to e hieved vi the user interfe. The power limittion level n e expressed s: Mximum running urrent (in A) Mximum power input (in kw) The power limittion level n e tivted: Permnently By digitl inputs Permnent power limittion Permnent power limittion is useful to ssure mximum power or urrent input of the system. In some ountries, legisltion limits the mximum power onsumption for spe heting nd DHW prodution. DI P i P i t DI Setup nd onfigurtion t Power input Time Digitl input (power limittion level) Power limittion tive Atul power input No dditionl equipment needed. Set the power onsumption ontrol settings in [A.6.3.1] vi the user interfe (for the desription of ll settings, see "8 Configurtion" on pge 38): Selet full time limittion mode Selet the type of limittion (power in kw or urrent in A) Set the desired power limittion level Mind the following guidelines when seleting the desired power limittion level: Set minimum power onsumption of ±3.6 kw to gurntee defrost opertion. Otherwise, if defrosting is interrupted severl times, the het exhnger will freeze up. Set minimum power onsumption of ±3 kw to gurntee spe heting nd DHW prodution y llowing the kup heter step Power limittion tivted y digitl inputs Power limittion is lso useful in omintion with n energy mngement system. Instller referene guide 14 Dikin Altherm Low temperture split

15 5 Applition guidelines The power or urrent of the entire Dikin system is limited dynmilly y digitl inputs (mximum four steps). Eh power limittion level is set vi the user interfe y limiting one of the following: Current (in A) Power input (in kw) The energy mngement system (field supply) deides the tivtion of ertin power limittion level. Exmple: To limit the mximum power of the entire house (lighting, domesti pplines, spe heting ). C Power limittion proess The outdoor unit hs etter effiieny thn the eletril heter. Therefore, the eletril heter is limited nd turned OFF first. The system limits power onsumption in the following order: 1 Turns OFF the kup heter. 2 Limits the outdoor unit. 3 Turns OFF the outdoor unit. Exmple If the onfigurtion is s follows: Power limittion level does NOT llow opertion of kup heter (step 1). Then power onsumption is limited s follows: A8P 2 1 P h A DI1 DI3 DI4 P i Setup B A B C P i t DI Outdoor unit Indoor unit Energy mngement system Power limittion tivtion (4 digitl inputs) Bkup heter Dikin Altherm Low temperture split t Power input Time Digitl inputs (power limittion levels) Power limittion tive Atul power input Demnd PCB (option EKRP1AHTA) needed. Mximum four digitl inputs re used to tivte the orresponding power limittion level: DI1 = wekest limittion (highest energy onsumption) DI4 = strongest limittion (lowest energy onsumption) For the speifitions of the digitl inputs, nd for where to onnet them, refer to the wiring digrm. Configurtion Set the power onsumption ontrol settings in [A.6.3.1] vi the user interfe (for the desription of ll settings, see "8 Configurtion" on pge 38): Selet tivtion y digitl inputs. Selet the type of limittion (power in kw or urrent in A). Set the desired power limittion level orresponding to eh digitl input. In se more thn 1 digitl input is losed (t the sme time), the digitl input priority is fixed: DI4 priority> >DI1. A B P h C e A B C e Produed het Consumed energy Outdoor unit Bkup heter Limited outdoor unit opertion Full outdoor unit opertion Bkup heter step 1 turned ON 5.6 Setting up n externl temperture sensor You n onnet one externl temperture sensor. It n mesure the indoor or outdoor mient temperture. Dikin reommends to use n externl temperture sensor in the following ses: Indoor mient temperture In room thermostt ontrol, the user interfe is used s room thermostt nd it mesures the indoor mient temperture. Therefore, the user interfe must e instlled on lotion: Where the verge temperture in the room n e deteted Tht is NOT exposed to diret sunlight Tht is NOT ner het soure Tht is NOT ffeted y outside ir or ir drught euse of, for exmple, door opening/losing If this is NOT possile, Dikin reommends to onnet remote indoor sensor (option KRCS01-1). Setup: For instlltion instrutions, see the instlltion mnul of the remote indoor sensor. Configurtion: Selet room sensor [A.2.2.B]. Outdoor mient temperture In the outdoor unit, the outdoor mient temperture is mesured. Therefore, the outdoor unit must e instlled on lotion: At the north side of the house or t the side of the house where the most het emitters re loted Tht is NOT exposed to diret sunlight If this is NOT possile, Dikin reommends to onnet remote outdoor sensor (option EKRSCA1). Setup: For instlltion instrutions, see the instlltion mnul of the remote outdoor sensor. Configurtion: Selet outdoor sensor [A.2.2.B]. Instller referene guide 15

16 6 Preprtion During suspend (see "8 Configurtion" on pge 38), the outdoor unit is turned down to redue the stndy energy losses. As result, the outdoor mient temperture is NOT red out. If the desired leving wter temperture is wether dependent, the full time outdoor temperture mesurement is importnt. This is nother reson to instll the optionl outdoor mient temperture sensor. The externl outdoor mient sensor dt (either verged or instntneous) is used in the wether-dependent ontrol urves. To protet the outdoor unit, the internl sensor of the outdoor unit is lwys used. 6 Preprtion 6.1 Overview: Preprtion This hpter desries wht you hve to do nd know efore going on-site. It ontins informtion out: Prepring the instlltion site Prepring the refrigernt piping Prepring the wter piping Prepring the eletril wiring 6.2 Prepring instlltion site Do NOT instll the unit in ples often used s work ple. In se of onstrution works (e.g. grinding works) where lot of dust is reted, the unit must e overed. Choose the instlltion lotion with suffiient ple for rrying the unit in nd out of the site. This unit is designed for opertion on 2 temperture zones: underfloor heting in the min zone (wter temperture 35 C), this is the zone with the lowest wter temperture, rditors in the dditionl zone (wter temperture 45 C), this is the zone with the highest wter temperture Instlltion site requirements of the outdoor unit Also red the following requirements: Generl instlltion site requirements. See the "Generl sfety preutions" hpter. Refrigernt piping requirements (length, height differene). See further in this "Preprtion" hpter. Mind the following sping guidelines: 1200 >250 >350 >250 >250 >350 Air outlet Air inlet See "14.2 Dimensions nd servie spe" on pge 71 for more detiled informtion out sping guidelines. Do NOT stk the units on eh other. Do NOT hng the unit on eiling. Strong winds ( 18 km/h) lowing ginst the outdoor unit s ir outlet uses short iruit (sution of dishrge ir). This my result in: deteriortion of the opertionl pity; frequent frost elertion in heting opertion; disruption of opertion due to derese of low pressure or inrese of high pressure; roken fn (if strong wind lows ontinuously on the fn, it my strt rotting very fst, until it reks). It is reommended to instll ffle plte when the ir outlet is exposed to wind. It is reommended to instll the outdoor unit with the ir inlet fing the wll nd NOT diretly exposed to the wind. Bffle plte Previling wind diretion Air outlet Do NOT instll the unit in the following ples: Sound sensitive res (e.g. ner edroom nd the like), so tht the opertion noise will use no troule. Note: If the sound is mesured under tul instlltion onditions, the mesured vlue might e higher thn the sound pressure level mentioned in Sound spetrum in the dt ook due to environmentl noise nd sound refletions. In ples where minerl oil mist, spry or vpour my e present in the tmosphere. Plsti prts my deteriorte nd fll off or use wter lekge. It is NOT reommended to instll the unit in the following ples euse it my shorten the life of the unit: in ostl res or other ples where the ir ontins high levels of slt. Corrosion my our, where the voltge flututes lot, in vehiles or vessels, where idi or lkline vpour is present. The outdoor unit is designed for outdoor instlltion only, nd for mient tempertures rnging 10~43 C in ooling mode nd 25~25 C in heting mode. (mm) (mm) Instller referene guide 16 Dikin Altherm Low temperture split

17 6 Preprtion Additionl instlltion site requirements of the outdoor unit in old limtes Protet the outdoor unit ginst diret snowfll nd tke re tht the outdoor unit is NEVER snowed up. >10 >10 >500 d d Snow over or shed Pedestl Previling wind diretion Air outlet In ny se, provide t lest 300 mm of free spe elow the unit. Additionlly, mke sure the unit is positioned t lest 100 mm ove the mximum expeted level of snow. See "7.3 Mounting the outdoor unit" on pge 23 for more detils. In hevy snowfll res it is very importnt to selet n instlltion site where the snow will NOT ffet the unit. If lterl snowfll is possile, mke sure tht the het exhnger oil is NOT ffeted y the snow. If neessry, instll snow over or shed nd pedestl Instlltion site requirements of the indoor unit Also red the preutions nd requirements in the "Generl sfety preutions" hpter. Mind the following mesurements guidelines: Mximum refrigernt piping length etween indoor unit nd outdoor unit Minimum refrigernt piping length etween indoor unit nd outdoor unit Mximum height differene etween indoor unit nd outdoor unit Mind the following sping instlltion guidelines: 30 m 3 m 20 m (mm) Do NOT instll the unit in ples suh s: In ples where minerl oil mist, spry or vpour my e present in the tmosphere. Plsti prts my deteriorte nd fll off or use wter lekge. Sound sensitive res (e.g. ner edroom nd the like), so tht the opertion noise will use no troule. The foundtion must e strong enough to er the weight of the unit. Tke the weight of the unit with domesti hot wter tnk full of wter into ount. Mke sure, in the event of wter lek, wter nnot use ny dmge to the instlltion spe nd surroundings. In ples with high humidity (mx. RH=85%), for exmple throom. In ples where frost is possile. Amient temperture round the indoor unit should e >5 C. The indoor unit is designed for indoor instlltion only nd for mient tempertures rnging from 5~35 C. 6.3 Prepring refrigernt piping Refrigernt piping requirements Also red the preutions nd requirements in the "Generl sfety preutions" hpter. Piping mteril: Phosphori id deoxidised semless opper. Piping dimeter: Liquid piping Ø6.4 mm (1/4") Gs piping Ø15.9 mm (5/8") Piping temper grde nd thikness: Outer dimeter (Ø) Temper grde 6.4 mm (1/4") Anneled (O) 0.8 mm 15.9 mm (5/8") Anneled (O) 1.0 mm Thikness (t) () Ø t () Depending on the pplile legisltion nd the unit's mximum working pressure (see "PS High" on the unit nme plte), lrger piping thikness might e required Refrigernt piping insultion Use polyethylene fom s insultion mteril: with het trnsfer rte etween nd W/mK (0.035 nd kl/mh C) with het resistne of t lest 120 C Insultion thikness Dikin Altherm Low temperture split Instller referene guide 17

18 6 Preprtion Pipe outer dimeter (Ø p ) Insultion inner dimeter (Ø i ) 6.4 mm (1/4") 8~10 mm 10 mm 15.9 mm (5/8") 16~20 mm 13 mm Øp Øi t Insultion thikness (t) If the temperture is higher thn 30 C nd the humidity is higher thn RH 80%, the thikness of the insultion mterils should e t lest 20 mm to prevent ondenstion on the surfe of the insultion. 6.4 Prepring wter piping Wter iruit requirements Also red the preutions nd requirements in the "Generl sfety preutions" hpter. Conneting piping Legisltion. Mke ll piping onnetions in ordne with the pplile legisltion nd the instrutions in the "Instlltion" hpter, respeting the wter inlet nd outlet. Conneting piping Fore. Do NOT use exessive fore when onneting the piping. Deformtion of the piping n use mlfuntioning of the unit. Conneting piping Tools. Only use pproprite tooling to hndle rss, whih is soft mteril. If NOT, pipes will get dmged. Conneting piping Air, moisture, dust. If ir, moisture or dust gets into the iruit, prolems my our. To prevent this: Only use len pipes Hold the pipe end downwrds when removing urrs. Cover the pipe end when inserting it through wll, to prevent dust nd/or prtiles entering the pipe. Use deent thred selnt to sel onnetions. Closed iruit. Use the indoor unit ONLY in losed wter system. Using the system in n open wter system will led to exessive orrosion. Glyol. For sfety resons, it is NOT llowed to dd ny kind of glyol to the wter iruit. Piping length. It is reommended to void long runs of piping etween the domesti hot wter tnk nd the hot wter end point (shower, th, ) nd to void ded ends. Piping dimeter. Selet the wter piping dimeter in reltion to the required wter flow nd the ville externl stti pressure of the pump. See "14 Tehnil dt" on pge 71 for the externl stti pressure urves of the indoor unit. Wter flow. You n find the minimum required wter flow for indoor unit opertion in the following tle. In ll ses, this flow needs to e gurnteed. When the flow is lower, the indoor unit will stop opertion nd disply error 7H. Minimum required flow rte during defrost/kup heter opertion models 12 l/min 16 model 15 l/min Field supply omponents Wter. Only use mterils tht re omptile with wter used in the system nd with the mterils used in the indoor unit. Field supply omponents Wter pressure nd temperture. Chek tht ll omponents in the field piping n withstnd the wter pressure nd wter temperture. Wter pressure. The mximum wter pressure is 4 r. Provide dequte sfegurds in the wter iruit to ensure tht the mximum pressure is NOT exeeded. Wter temperture. All instlled piping nd piping essories (vlve, onnetions, ) MUST withstnd the following tempertures: The following illustrtion is n exmple nd might NOT mth your system lyout. 60 C M M 55 C d e h g i i d e f g h i j k HPC1...3 FHL1...3 k f i i HPC1 j HPC2 j HPC3 FHL1 FHL2 FHL3 Outdoor unit Indoor unit Het exhnger Bkup heter Motorised 3 wy vlve (swith etween spe heting nd domesti hot wter) Motorised 3 wy vlve (mixing the min zone) Min pump Additionl pump Shut-off vlve Colletor (field supply) Domesti hot wter tnk Het pump onvetor (field supply) Floor heting loop (field supply) Dringe Low points. Provide drin tps t ll low points of the system in order to llow omplete dringe of the wter iruit. Dringe Pressure relief vlve. Provide proper drin for the pressure relief vlve to void wter dripping out of the unit. See "7.8.5 To onnet the pressure relief vlve to the drin" on pge 32. Air vents. Provide ir vents t ll high points of the system, whih must lso e esily essile for serviing. An utomti ir purge is provided in the indoor unit. Chek tht the ir purge is NOT tightened too muh, so tht utomti relese of ir in the wter iruit is possile. Zn-oted prts. Never use Zn-oted prts in the wter iruit. Beuse the unit's internl wter iruit uses opper piping, exessive orrosion my our. Non-rss metlli piping. When using non-rss metlli piping, insulte the rss nd non-rss properly so tht they do NOT mke ontt with eh other. This to prevent glvni orrosion. Vlve Chnge over time. When using 2-wy vlve or 3-wy vlve in the wter iruit, the mximum hnge-over time of the vlve must e 60 seonds. Instller referene guide 18 Dikin Altherm Low temperture split

19 6 Preprtion Filter. It is strongly reommended to instll n dditionl filter on oth heting wter iruits. Espeilly to remove metlli prtiles from foul heting piping, it is reommended to use mgneti or ylone filter, whih n remove smll prtiles. Smll prtiles my dmge the unit nd will NOT e removed y the stndrd filter of the het pump system. Domesti hot wter tnk Cpity. To void stgntion of wter, it is importnt tht the storge pity of the domesti hot wter tnk meets the dily onsumption of domesti hot wter. Domesti hot wter tnk After instlltion. Immeditely fter instlltion, the domesti hot wter tnk must e flushed with fresh wter. This proedure must e repeted t lest one dy the first 5 onseutive dys fter instlltion. Domesti hot wter tnk Stndstills. In ses where during longer periods of time there is no onsumption of hot wter, the equipment MUST e flushed with fresh wter efore usge. Domesti hot wter tnk Disinfetion. For the disinfetion funtion of the domesti hot wter tnk, see "8.3.2 Domesti hot wter ontrol: dvned" on pge 50. Thermostti mixing vlves. In ordne with the pplile legisltion, it my e neessry to instll thermostti mixing vlves. Hygieni mesures. The instlltion must e in ompline with the pplile legisltion nd my require dditionl hygieni instlltion mesures. Reirultion pump. In ordne with the pplile legisltion, it my e required to onnet reirultion pump in etween the hot wter end point nd the reirultion onnetion of the domesti hot wter tnk. d d Reirultion onnetion Hot wter onnetion Shower Reirultion pump Formul to lulte the expnsion vessel pre-pressure The pre-pressure (Pg) of the vessel depends on the instlltion height differene (H): Pg=0.3+(H/10) (r) To hek the wter volume nd flow rte The indoor unit hs n expnsion vessel of 10 litre with ftory-set pre-pressure of 1 r. To mke sure tht the unit opertes properly: You must hek the minimum nd mximum wter volume. You might need to djust the pre-pressure of the expnsion vessel. Minimum wter volume Chek tht the totl wter volume in the instlltion is minimum 10 litre for EHVZ04+08 nd 20 litre for EHVZ16, the internl wter volume of the indoor unit NOT inluded. Do NOT split up the minimum wter volume over the 2 temperture zones. It is suffiient to foresee the minimum wter volume on the min zone. In se of underfloor heting, this is esily done y 1 floor heting loop tht never will e losed y (remotely) ontrolled vlve. It is NOT required to foresee the minimum wter volume on the dditionl zone. In ritil proesses, or in rooms with high het lod, extr wter might e required. When irultion in eh spe heting loop is ontrolled y remotely ontrolled vlves, it is importnt tht the minimum wter volume is gurnteed, even if ll of the vlves re losed. d e f g h i j FHL1...3 HPC1...3 T1...3 M1...3 d e M Mximum wter volume f g h h h h T1 M1 T1 M1 T2 M2 FHL1 T2 M2 T3 M3 HPC1 HPC2 HPC3 i i FHL2 T3 M3 FHL3 Outdoor unit Indoor unit Het exhnger Bkup heter Motorised 3 wy vlve (mixing the min zone) Additionl pump Min pump Shut-off vlve Colletor (field supply) By-pss vlve (field supply) Floor heting loop (field supply) Het pump onvetor (field supply) Individul room thermostt (optionl) Individul motorised vlve to ontrol loop FHL1...3 nd HPC1...3 (field supply) Use the following grph to determine the mximum wter volume for the lulted pre-pressure Pre-pressure (r) Mximum wter volume (l) Exmple: Mximum wter volume nd expnsion vessel prepressure j j Dikin Altherm Low temperture split Instller referene guide 19

20 6 Preprtion Instlltion height differene () 7 m 280 l No pre-pressure djustment is required. >7 m Do the following: () Minimum flow rte Inrese the prepressure. Chek if the wter volume does NOT exeed the mximum llowed wter volume. Wter volume >280 l Do the following: Derese the prepressure. Chek if the wter volume does NOT exeed the mximum llowed wter volume. The expnsion vessel of the indoor unit is too smll for the instlltion. In this se, it is reommended to instll n extr vessel outside the unit. This is the height differene (m) etween the highest point of the wter iruit nd the indoor unit. If the indoor unit is t the highest point of the instlltion, the instlltion height is 0 m. Chek tht the minimum flow rte (required during defrost/kup heter opertion) in the instlltion is gurnteed in ll onditions on eh zone seprtely. When irultion in eh or ertin spe heting loops is ontrolled y remotely ontrolled vlves, it is importnt tht the minimum flow rte is gurnteed, even if ll vlves re losed. In se the minimum flow rte nnot e rehed, flow error 7H will e generted (no heting/opertion). Minimum required flow rte during defrost/kup heter opertion models 12 l/min 16 model 15 l/min See the reommended proedure s desried in "9.4 Cheklist during ommissioning" on pge Chnging the pre-pressure of the expnsion vessel Only liensed instller my djust the pre-pressure of the expnsion vessel. When hnging the defult pre-pressure of the expnsion vessel (1 r) is required, tke following guidelines into ount: Only use dry nitrogen to set the expnsion vessel pre-pressure. Inpproprite setting of the expnsion vessel pre-pressure will led to mlfuntion of the system. Chnging the pre-pressure of the expnsion vessel should e done y relesing or inresing nitrogen pressure through the shräder vlve of the expnsion vessel. Shräder vlve To hek the wter volume: Exmples Exmple 1 The indoor unit is instlled 5 m elow the highest point in the wter iruit. The totl wter volume in the wter iruit is 100 l. No tions or djustments re required. Exmple 2 The indoor unit is instlled t the highest point in the wter iruit. The totl wter volume in the wter iruit is 350 l. Ations: Beuse the totl wter volume (350 l) is more thn the defult wter volume (280 l), the pre-pressure must e deresed. The required pre-pressure is: Pg = (0.3+(H/10)) r = (0.3+(0/10)) r=0.3 r. The orresponding mximum wter volume t 0.3 r is 410 l. (See the grph in the hpter ove). Beuse 350 l is lower thn 410 l, the expnsion vessel is pproprite for the instlltion. 6.5 Prepring eletril wiring Aout prepring eletril wiring Also red the preutions nd requirements in the "Generl sfety preutions" hpter. WARNING If the power supply hs missing or wrong N-phse, equipment might rek down. Estlish proper erthing. Do NOT erth the unit to utility pipe, surge sorer, or telephone erth. Inomplete erthing my use eletril shok. Instll the required fuses or iruit rekers. Seure the eletril wiring with le ties so tht the les do NOT ome in ontt with shrp edges or piping, prtiulrly on the high-pressure side. Do NOT use tped wires, strnded ondutor wires, extension ords, or onnetions from str system. They n use overheting, eletril shok or fire. Do NOT instll phse dvning pitor, euse this unit is equipped with n inverter. A phse dvning pitor will redue performne nd my use idents. Instller referene guide 20 Dikin Altherm Low temperture split

21 6 Preprtion WARNING All wiring must e performed y n uthorized eletriin nd must omply with the pplile legisltion. Mke eletril onnetions to the fixed wiring. All omponents proured on the site nd ll eletril onstrution must omply with the pplile legisltion. WARNING The kup heter should hve dedited power supply. WARNING ALWAYS use multiore le for power supply les Aout preferentil kwh rte power supply Eletriity ompnies throughout the world work hrd to provide relile eletri servie t ompetitive pries nd re often uthorized to ill lients t enefit rtes. E.g. time-of-use rtes, sesonl rtes, Wärmepumpentrif in Germny nd Austri,... This equipment llows for onnetion to suh preferentil kwh rte power supply delivery systems. Consult with the eletriity ompny ting s provider t the site where this equipment is to e instlled to know whether it is pproprite to onnet the equipment in one of the preferentil kwh rte power supply delivery systems ville, if ny. When the equipment is onneted to suh preferentil kwh rte power supply, the eletriity ompny is llowed to: interrupt power supply to the equipment for ertin periods of time; demnd tht the equipment only onsumes limited mount of eletriity during ertin periods of time. The indoor unit is designed to reeive n input signl y whih the unit swithes into fored off mode. At tht moment, the outdoor unit ompressor will not operte. Whether the power supply is interrupted or not, the wiring to the unit is different. Overview of eletril onnetions exept externl tutors Norml power supply Preferentil kwh rte power supply Power supply is NOT interrupted During preferentil kwh rte power supply tivtion, power supply is NOT interrupted. The outdoor unit is turned off y the ontrol. Remrk: The eletriity ompny must lwys llow the power onsumption of the indoor unit. Power supply is interrupted During preferentil kwh rte power supply tivtion, power supply is interrupted immeditely or fter some time y the eletriity ompny. In this se, the indoor unit must e powered y seprte norml power supply. Norml power supply Preferentil kwh rte power supply 1 Power supply for outdoor unit 2 Power supply nd interonnetion le to indoor unit 3 Power supply for kup heter 4 Preferentil kwh rte power supply (voltge free ontt) 5 Norml kwh rte power supply (to power the indoor unit PCB in the event of power supply interruption of the preferentil kwh rte power supply) Overview of eletril onnetions for externl nd internl tutors The following illustrtion shows the required field wiring. 1 The following illustrtion is n exmple nd might NOT mth your system lyout M Indoor unit Item Desription Wires Mximum running urrent Outdoor unit nd indoor unit power supply 1 Power supply for outdoor unit 2+GND or 3+GND 2 Power supply nd 3 () interonnetion le to indoor unit 3 Power supply for kup heter () See tle elow. Dikin Altherm Low temperture split Instller referene guide 21

22 7 Instlltion Item Desription Wires Mximum running urrent 4 Preferentil kwh rte power supply (voltge free ontt) 5 Norml kwh rte power supply User interfe 2 (d) A 6 User interfe 2 (e) Optionl equipment 11 Power supply for ottom plte heter 2 () 12 Room thermostt 2 or ma () 13 Outdoor mient temperture sensor 14 Indoor mient temperture sensor 2 () 2 () 15 Het pump onvetor ma () Field supplied omponents 16 Shut-off vlve ma () 17 Eletriity meter 2 (per meter) () 18 Domesti hot wter pump 2 () 19 Alrm output 2 () 20 Chngeover to externl het soure ontrol 21 Spe het opertion ontrol 22 Power onsumption digitl inputs 2 () 2 () 2 (per input signl) 23 Sfety thermostt 2 () () () () (d) (e) Refer to nme plte on outdoor unit. Minimum le setion 0.75 mm². Cle setion 2.5 mm². Cle setion 0.75 mm² till 1.25 mm²; mximum length: 50 m. Voltge-free ontt shll ensure the minimum pplile lod of 15 V DC, 10 ma. Cle setion 0.75 mm² till 1.25 mm²; mximum length: 500 m. Applile for oth single user interfe nd dul use interfe onnetion. More tehnil speifitions of the different onnetions re indited on the inside of the indoor unit. A sfety thermostt (norml losed ontt) MUST e instlled. See " To onnet the sfety thermostt (norml losed ontt)" on pge 37. Bkup heter type Power supply *3V V 2+GND 7 Instlltion 7.1 Overview: Instlltion () Required numer of ondutors This hpter desries wht you hve to do nd know on-site to instll the system. Typil workflow Instlltion typilly onsists of the following stges: 1 Mounting the outdoor unit. 2 Mounting the indoor unit. 3 Conneting the refrigernt piping. 4 Cheking the refrigernt piping. 5 Chrging refrigernt. 6 Conneting the wter piping. 7 Conneting the eletril wiring. 8 Finishing the outdoor instlltion. 9 Finishing the indoor instlltion. Depending on the units nd/or the instlltion onditions, it might e neessry to onnet eletril wiring efore you n hrge refrigernt. 7.2 Opening the units Aout opening the units At ertin times, you hve to open the unit. Exmple: When onneting the refrigernt piping When onneting the eletril wiring When mintining or serviing the unit DANGER: RISK OF ELECTROCUTION Do NOT leve the unit unttended when the servie over is removed To open the outdoor unit DANGER: RISK OF ELECTROCUTION DANGER: RISK OF BURNING To open the indoor unit Loosen nd remove the srews t the ottom of the unit. 2 Push on the utton t the ottom of the front plte. WARNING: Shrp edges 1 Tke the front plte on the upper prt insted of the lower prt. Wth your fingers, there re shrp edges on the lower prt of the front plte. 3 Slide the front pnel of the unit downwrds nd remove it. CAUTION The front pnel is hevy. Be reful NOT to jm your fingers when opening or losing the unit. 4 Loosen nd remove the 4 srews tht fix the top pnel. Instller referene guide 22 Dikin Altherm Low temperture split

23 7 Instlltion 5 Remove the top pnel from the unit Preutions when mounting the outdoor unit Also red the preutions nd requirements in the following hpters: Generl sfety preutions Preprtion To provide the instlltion struture Chek the strength nd level of the instlltion ground so tht the unit will not use ny operting virtion or noise. Fix the unit seurely y mens of foundtion olts in ordne with the foundtion drwing. If the unit is instlled diretly on the floor, prepre 4 sets of M8 or M10 nhor olts, nuts nd wshers (field supply) s follows: 3 The mximum height of the upper protruding prt of the olts is 15 mm. 2 Fix the outdoor unit to the foundtion olts using nuts with resin wshers (). If the oting on the fstening re is stripped off, the nuts rust esily To open the swith ox over of the indoor unit Aout mounting the outdoor unit < Mounting the outdoor unit (mm) >300 You hve to mount the outdoor nd indoor unit efore you n onnet the refrigernt nd wter piping. < When Typil workflow Mounting the outdoor unit typilly onsists of the following stges: Providing the instlltion struture. Instlling the outdoor unit. Providing dringe. Preventing the outdoor unit from flling over. Proteting the unit ginst snow nd wind y instlling snow over nd ffle pltes. See "Prepring instlltion site" in "6 Preprtion" on pge 16. Dikin Altherm Low temperture split In ny se, provide t lest 300 mm of free spe elow the unit. Additionlly, mke sure the unit is positioned t lest 100 mm ove the mximum expeted level of snow. In this se, it is reommended to onstrut pedestl, nd on this pedestl instll the EKFT008CA option kit. Instller referene guide 23

24 7 Instlltion < 3 28 > < 15 0 (mm) Mximum snowfll height EKFT008CA option kit If the unit is instlled on rkets to the wll, it is reommended to use the EKFT008CA option kit nd to instll the unit s follows: To instll the outdoor unit CAUTION >2 50 Do NOT remove the protetive rdord efore the unit is instlled properly. 1 Lift the outdoor unit s desried in "3.2.2 To remove the essories from the outdoor unit" on pge 7. 2 Instll the outdoor unit s follows: > (mm) Mximum snowfll height EKFT008CA option kit Air outlet The pedestl MUST e ligned with the kside of the U em. 3 Instller referene guide 24 Remove the protetive rdord nd instrution sheet. Dikin Altherm Low temperture split

25 7 Instlltion Avoid instlltion ples where wter leking from the unit due to loked drin pn, use dmge to the lotion. 28 3m Mke sure tht ondenstion wter n e evuted properly. Instll the unit on se to mke sure tht there is proper dringe in order to void ie umultion. Prepre wter dringe hnnel round the foundtion to drin wste wter surrounding the unit. Avoid drin wter flowing over the footpth, so tht it does not eome slippery in se of mient freezing tempertures. If you instll the unit on frme, instll wterproof plte within 150 mm of the ottom side of the unit in order to prevent the invsion of wter in the unit nd to void the drin wter dripping (see the following illustrtion) m m To provide dringe Protetive rdord Instrution sheet m To prevent the outdoor unit from flling over In se the unit is instlled in ples where strong wind n tilt the unit, tke following mesure: 1 Prepre 2 les s indited in the following illustrtion (field supply). 2 Ple the 2 les over the outdoor unit. 3 Insert ruer sheet etween the les nd the outdoor unit to prevent the le from srthing the pint (field supply). 4 Atth the le s ends. Tighten those ends. If the drin holes of the outdoor unit re loked up, provide spe of t lest 300 mm elow the outdoor unit. An dditionl drin pn kit (EKDP008CA) n e used to gther the drin wter. The drin pn kit onsists of: Drin pn U-ems 7.4 Mounting the indoor unit Aout mounting the indoor unit When You hve to mount the outdoor nd indoor unit efore you n onnet the refrigernt nd wter piping. Typil workflow Mounting the indoor unit typilly onsists of the following stges: 1 Instlling the indoor unit. Dikin Altherm Low temperture split Instller referene guide 25

26 7 Instlltion Typil workflow Preutions when mounting the indoor unit Conneting the refrigernt piping involves: Conneting the refrigernt piping to the outdoor unit Also red the preutions nd requirements in the following hpters: Conneting the refrigernt piping to the indoor unit Insulting the refrigernt piping Keeping in mind the guidelines for: Generl sfety preutions Pipe ending Preprtion Flring pipe ends To instll the indoor unit Brzing Lift the indoor unit from the pllet nd ple it on the floor. Using the stop vlves Preutions when onneting the refrigernt piping Also red the preutions nd requirements in the following hpters: 135 kg Generl sfety preutions Preprtion DANGER: RISK OF BURNING CAUTION Do NOT use minerl oil on flred prt. Do NOT reuse piping from previous instlltions. 2 Slide the indoor unit into position. 3 Adjust the height of the leveling feet to ompenste for floor irregulrities. The mximum llowed devition is 1. NEVER instll drier to this R410A unit to gurntee its lifetime. The drying mteril my dissolve nd dmge the system. 1 Tke the following preutions on refrigernt piping into ount: Avoid nything ut the designted refrigernt to get mixed into the refrigernt yle (e.g. ir). Only use R410A when dding refrigernt. Only use instlltion tools (e.g. mnifold guge set) tht re exlusively used for R410A instlltions to withstnd the pressure nd to prevent foreign mterils (e.g. minerl oils nd moisture) from mixing into the system. Do NOT tilt the unit kwrds: Instll the piping so tht the flre is NOT sujeted to mehnil stress Protet the piping s desried in the following tle to prevent dirt, liquid or dust from entering the piping. Use ution when pssing opper tues through wlls (see figure elow) Conneting the refrigernt piping Aout onneting the refrigernt piping Before onneting the refrigernt piping 1 Unit Outdoor unit Indoor unit Instlltion period Protetion method >1 month Pinh the pipe <1 month Pinh or tpe the pipe Regrdless of the period Mke sure the outdoor nd indoor unit re mounted. Instller referene guide 26 Dikin Altherm Low temperture split

27 7 Instlltion Do NOT open the refrigernt stop vlve efore heking the refrigernt piping. When you need to hrge dditionl refrigernt it is reommended to open the refrigernt stop vlve fter hrging Guidelines when onneting the refrigernt piping Tke the following guidelines into ount when onneting pipes: Cot the flre inner surfe with ether oil or ester oil when onneting flre nut. Tighten 3 or 4 turns y hnd, efore tightening firmly. 4 Flre the pipe. Set extly t the position s shown in the following illustrtion. A Flre tool for R410A (luth type) Conventionl flre tool Cluth type (Ridgid-type) Wing nut type (Imperil-type) A 0~0.5 mm 1.0~1.5 mm 1.5~2.0 mm 5 Chek tht the flring is properly mde. Alwys use two wrenhes together when loosening flre nut. Alwys use spnner nd torque wrenh together to tighten the flre nut when onneting the piping. This to prevent nut rking nd leks. d d Piping size (mm) Torque wrenh Spnner Piping union Flre nut Tightening torque (N m) Flre dimensions (A) (mm) Ø6.4 15~17 8.7~9.1 Ø ~ ~ Pipe ending guidelines Flre shpe (mm) 90 ±2 A 45 ±2 R=0.4~0.8 Use pipe ender for ending. All pipe ends should e s gentle s possile (ending rdius should e 30~40 mm or lrger) To flre the pipe end CAUTION Inomplete flring my use refrigernt gs lekge. Do NOT re-use flres. Use new flres to prevent refrigernt gs lekge. Use flre nuts tht re inluded with the unit. Using different flre nuts my use refrigernt gs lekge. 1 Cut the pipe end with pipe utter. 2 Remove urrs with the ut surfe fing downwrd so tht the hips do not enter the pipe. Flre s inner surfe must e flwless. The pipe end must e evenly flred in perfet irle. Mke sure the flre nut is lifted To rze the pipe end The indoor unit nd outdoor unit hve flre onnetions. Connet oth ends without rzing. If rzing should e needed, tke the following into ount: When rzing, low through with nitrogen to prevent retion of lrge quntities of oxidised film on the inside of the piping. This film dversely ffets vlves nd ompressors in the refrigerting system nd prevents proper opertion. Set the nitrogen pressure to 20 kp (just enough so it n e felt on the skin) with pressure-reduing vlve. d e d e f f Refrigernt piping Prt to e rzed Tping Mnul vlve Pressure-reduing vlve Nitrogen Do NOT use nti-oxidnts when rzing pipe joints. Residue n log pipes nd rek equipment. Do NOT use flux when rzing opper-to-opper refrigernt piping. Use phosphor opper rzing filler lloy (BCuP), whih does not require flux. Flux hs n extremely hrmful influene on refrigernt piping systems. For instne, if hlorine sed flux is used, it will use pipe orrosion or, in prtiulr, if the flux ontins fluorine, it will deteriorte the refrigernt oil Using the stop vlve nd servie port To hndle the stop vlve Tke the following guidelines into ount: The stop vlves re ftory losed. The following illustrtion shows eh prt required in hndling the vlve. f Cut extly t right ngles. Remove urrs. 3 Remove the flre nut from the stop vlve nd put the flre nut on the pipe. Dikin Altherm Low temperture split Instller referene guide 27

28 7 Instlltion d d Servie port nd servie port p Vlve stem Field piping onnetion Stem p Keep oth stop vlves open during opertion. Do NOT pply exessive fore to the vlve stem. Doing so my rek the vlve ody. Alwys mke sure to seure the stop vlve with spnner, then loosen or tighten the flre nut with torque wrenh. Do NOT ple the spnner on the stem p, s this ould use refrigernt lek. Chek for refrigernt leks fter tightening the stem p. Item Tightening torque (N m) Stem p, liquid side 13.5~16.5 Stem p, gs side 22.5~27.5 Servie port p 11.5~13.9 To hndle the servie p Tke the following guidelines into ount: Alwys use hrge hose equipped with vlve depressor pin, sine the servie port is Shrder type vlve. After hndling the servie port, tighten the servie port p seurely. For the tightening torque, refer to the tle in hpter "To hndle the stem p" on pge 28. Chek for refrigernt leks fter tightening the servie port p To onnet the refrigernt piping to the outdoor unit 1 Connet the liquid refrigernt onnetion from the indoor unit to the liquid stop vlve of the outdoor unit. Spnner Torque wrenh When it is expeted tht the operting pressure will e low (e.g. when ooling will e performed while the outside ir temperture is low), suffiiently sel the flre nut in the stop vlve on the gs line with silion selnt to prevent freezing. Silion selnt, mke sure there is no gp. To open/lose the stop vlve 1 Remove the vlve over. 2 Insert hexgon wrenh (liquid side: 4 mm, gs side: 6 mm) into the vlve stem nd turn the vlve stem: Liquid stop vlve Gs stop vlve Servie port 2 Connet the gs refrigernt onnetion from the indoor unit to the refrigernt stop vlve of the outdoor unit To onnet the refrigernt piping to the indoor unit Counterlokwise to open. Clokwise to lose. 3 When the vlve stem nnot e turned ny further, stop turning. The vlve is now opened/losed. 1 Connet the liquid stop vlve from the outdoor unit to the refrigernt liquid onnetion of the indoor unit. To hndle the stem p Tke the following guidelines into ount: The stem p is seled where indited with the rrow. Do NOT dmge it. After hndling the stop vlve, mke sure to tighten the stem p seurely. For the tightening torque, refer to the following tle. Instller referene guide 28 Refrigernt liquid onnetion Refrigernt gs onnetion 2 Connet the gs stop vlve from the outdoor unit to the refrigernt gs onnetion of the indoor unit. Dikin Altherm Low temperture split

29 7 Instlltion It is reommended tht the refrigernt piping etween indoor nd outdoor unit is instlled in duting or the refrigernt piping is wrpped with finishing tpe. 7.6 Cheking the refrigernt piping Aout heking the refrigernt piping The outdoor unit's internl refrigernt piping hs een ftory tested for leks. You only hve to hek the outdoor unit's externl refrigernt piping. Before heking the refrigernt piping Mke sure the refrigernt piping is onneted etween the outdoor unit nd the indoor unit. Typil workflow Cheking the refrigernt piping typilly onsists of the following stges: 1 Cheking for leks in the refrigernt piping. 2 Performing vuum drying to remove ll moisture, ir or nitrogen from the refrigernt piping. If there is possiility of moisture eing present in the refrigernt piping (for exmple, wter my hve entered the piping), first rry out the vuum drying proedure elow until ll moisture hs een removed Preutions when heking the refrigernt piping Also red the preutions nd requirements in the following hpters: Generl sfety preutions Preprtion Use 2-stge vuum pump with non-return vlve tht n evute to guge pressure of kp (5 Torr solute). Mke sure the pump oil does not flow oppositely into the system while the pump is not working. Use this vuum pump for R410A exlusively. Using the sme pump for other refrigernts my dmge the pump nd the unit. Connet the vuum pump to the servie port of the gs stop vlve. Mke sure tht the gs stop vlve nd liquid stop vlve re firmly losed efore performing the lek test or vuum drying To hek for leks Do NOT exeed the unit's mximum working pressure (see "PS High" on the unit nme plte). Mke sure to use reommended ule test solution from your wholesler. Do not use sop wter, whih my use rking of flre nuts (sop wter my ontin slt, whih sors moisture tht will freeze when the piping gets old), nd/or led to orrosion of flred joints (sop wter my ontin mmoni whih uses orrosive effet etween the rss flre nut nd the opper flre). 1 Chrge the system with nitrogen gs up to guge pressure of t lest 200 kp (2 r). It is reommended to pressurize to 3000 kp (30 r) in order to detet smll leks. 2 Chek for leks y pplying the ule test solution to ll onnetions. 3 Dishrge ll nitrogen gs. After opening the stop vlve, it is possile tht the pressure in the refrigernt piping does NOT inrese. This might e used y e.g. the losed stte of the expnsion vlve in the outdoor unit iruit, ut does NOT present ny prolem for orret opertion of the unit To perform vuum drying Connet the vuum pump nd mnifold s follows: e f d e f g h i j d h g h i Pressure meter Guge mnifold Low-pressure vlve (Lo) High-pressure vlve (Hi) Chrging hoses Vuum pump Servie port Vlve lids Gs stop vlve Liquid stop vlve j 1 Vuum the system until the pressure on the mnifold indites 0.1 MP ( 1 r). 2 Leve s is for 4-5 minutes nd hek the pressure: If the pressure Does not hnge Inreses Then There is no moisture in the system. This proedure is finished. There is moisture in the system. Go to the next step. 3 Evute for t lest 2 hours to pressure on the mnifold of 0.1 MP ( 1 r). 4 After turning OFF the pump, hek the pressure for t lest 1 hour. 5 If you do NOT reh the trget vuum or nnot mintin the vuum for 1 hour, do the following: Chek for leks gin. Perform vuum drying gin. Dikin Altherm Low temperture split Instller referene guide 29

30 7 Instlltion Be sure to open the gs stop vlve fter piping instlltion nd vuuming. Running the system with the vlve losed, the ompressor my rek down. 7.7 Chrging refrigernt Aout hrging refrigernt The outdoor unit is ftory hrged with refrigernt, ut in some ses the following might e neessry: Wht Chrging dditionl refrigernt Completely rehrging refrigernt Exmple: Chrging dditionl refrigernt When When the totl liquid piping length is more thn speified (see lter). When reloting the system. After lek. Before hrging dditionl refrigernt, mke sure the outdoor unit's externl refrigernt piping is heked (lek test, vuum drying). Depending on the units nd/or the instlltion onditions, it might e neessry to onnet eletril wiring efore you n hrge refrigernt. Typil workflow Chrging dditionl refrigernt typilly onsists of the following stges: 1 Determining if nd how muh you hve to hrge dditionlly. 2 If neessry, hrging dditionl refrigernt. 3 Filling in the fluorinted greenhouse gses lel, nd fixing it to the inside of the outdoor unit. Completely rehrging refrigernt Before ompletely rehrging refrigernt, mke sure the following is done: 1 The system is pumped down. 2 The outdoor unit's externl refrigernt piping is heked (lek test, vuum drying). 3 Vuum drying on the outdoor unit's internl refrigernt piping is performed. Before ompletely rehrging, perform vuum drying on the outdoor unit's internl refrigernt piping s well. Typil workflow Completely rehrging refrigernt typilly onsists of the following stges: 1 Determining how muh refrigernt to hrge. 2 Chrging refrigernt. 3 Filling in the fluorinted greenhouse gses lel, nd fixing it to the inside of the outdoor unit To determine the dditionl refrigernt mount If the totl liquid piping length is 10 m Then Do NOT dd dditionl refrigernt. >10 m R=(totl length (m) of liquid piping 10 m) R=Additionl hrge (kg)(rounded in units of 0.1 kg) Piping length is the one wy length of liquid piping To determine the omplete rehrge mount If omplete rehrge is neessry, the totl refrigernt hrge is: the ftory refrigernt hrge (see unit nme plte) + the determined dditionl mount To hrge refrigernt WARNING Only use R410A s refrigernt. Other sustnes my use explosions nd idents. R410A ontins fluorinted greenhouse gses. Its glol wrming potentil vlue is Do NOT vent these gses into the tmosphere. When hrging refrigernt, lwys use protetive gloves nd sfety glsses. CAUTION To void ompressor rekdown, do NOT hrge more thn the speified mount of refrigernt. Prerequisite: Before hrging refrigernt, mke sure the refrigernt piping is onneted nd heked (lek test nd vuum drying). 1 Connet the refrigernt ylinder to the servie port. 2 Chrge the dditionl refrigernt mount. 3 Open the gs stop vlve. If pump down is needed in se of dismntling or reloting the system, see "13.2 To pump down" on pge 69 for more detils To fix the fluorinted greenhouse gses lel Ntionl implementtion of EU regultion on ertin fluorinted greenhouse gses my require to provide the pproprite offiil lnguge on the unit. Therefore, n dditionl multilingul fluorinted greenhouse gses lel is supplied with the unit. 1 Fill in the lel s follows: Preutions when hrging refrigernt Also red the preutions nd requirements in the following hpters: Generl sfety preutions Preprtion d From the multilingul fluorinted greenhouse gses lel pel off the pplile lnguge nd stik it on top of. Instller referene guide 30 Dikin Altherm Low temperture split

31 7 Instlltion d Ftory refrigernt hrge: see unit nme plte Additionl refrigernt mount hrged Totl refrigernt hrge 2 Fix the lel on the inside of the outdoor unit ner the gs nd liquid stop vlves. 7.8 Conneting the wter piping Aout onneting the wter piping Before onneting the wter piping Mke sure the outdoor nd indoor unit re mounted. Typil workflow Conneting the wter piping typilly onsists of the following stges: 1 Conneting the wter piping of the indoor unit. 2 Conneting the pressure relief vlve to the drin. 3 Filling the wter iruit. 4 Filling the domesti hot wter tnk. 5 Insulting the wter piping. 6 Conneting the reirultion piping Preutions when onneting the wter piping Also red the preutions nd requirements in the following hpters: Generl sfety preutions Preprtion To onnet the wter piping Do NOT use exessive fore when onneting the piping. Deformtion of the piping n use mlfuntioning of the unit. To filitte servie nd mintenne, 4 shut-off vlves re provided. Mount the vlves on the wter inlets nd on the wter outlets. Mind their position. Orienttion of the integrted drin nd fill vlves is importnt for serviing. This unit is designed for opertion on 2 temperture zones: underfloor heting in the min zone (wter temperture 35 C), this is the zone with the lowest wter temperture, rditors in the dditionl zone (wter temperture 45 C), this is the zone with the highest wter temperture. 1 Instll the shut-off vlves on the wter pipes. e f d d e f Spe heting dditionl zone wter in Domesti hot wter out Domesti old wter in (old wter supply) Spe heting min zone wter out Spe heting min zone wter in It is reommended to instll shut-off vlves to domesti old wter in nd domesti hot wter out onnetions. Shut-off vlves re field supplied. To void dmge to the surroundings in se of wter lekge, it is reommended to lose the old wter inlet shut off vlves during periods of sene. 2 Srew the indoor unit nuts on the shut-off vlves. 3 Connet the domesti hot wter in nd out pipes to the indoor unit. A drin devie nd pressure relief devie should e instlled on the old wter inlet onnetion of the domesti hot wter ylinder. To void k siphonge, it is reommended to instll non-return vlve on the wter inlet of the domesti hot wter tnk in ordne with the pplile legisltion. It is reommended to instll pressure reduing vlve on the old wter inlet in ordne with the pplile legisltion. An expnsion vessel should e instlled on the old wter inlet in ordne with the pplile legisltion. It is reommended to instll the pressure relief vlve on higher position thn the top of the domesti hot wter tnk. Heting of the domesti hot wter tnk uses wter to expnd nd without pressure relief vlve the wter pressure inside the tnk n rise ove the tnk design pressure. Also the field instlltion (piping, tpping points, et.) onneted to the tnk is sujeted to this high pressure. To prevent this, pressure relieve vlve needs to e instlled. The overpressure prevention depends on the orret opertion of the field instlled pressure relief vlve. If this is NOT working orretly, overpressure will deform the tnk nd wter lekge my our. To onfirm good opertion, regulr mintenne is required To onnet the reirultion piping Prerequisite: Only required if you need reirultion in your system. 1 Loosen nd remove the 4 srews tht fix the top pnel. 2 Remove the top pnel from the unit. 4 Spe heting dditionl zone wter out 3 Connet the reirultion piping to the reirultion onnetion () nd route the piping through the hole t the kside of the unit (). Dikin Altherm Low temperture split Instller referene guide 31

32 7 Instlltion 2 Open the fill vlve. 3 Mke sure tht the utomti ir purge vlve is open (t lest 2 turns). For lotion of the ir purge vlve, see "Components: Indoor unit" in hpter "14 Tehnil dt" on pge Fill the iruit with wter until the mnometer indites pressure of ±2.0 r. 5 Purge s muh ir s possile from the wter iruit. 6 Close the fill vlve. 7 Disonnet the wter supply hose from the fill vlve. 4 Re-tth the sing. Piping intke hole Reirultion onnetion To onnet the pressure relief vlve to the drin The low out of the pressure relief vlve is oming out of the kside of the unit. The wter pressure indited on the mnometer will vry depending on the wter temperture (higher pressure t higher wter temperture). However, t ll times wter pressure shll remin ove 1 r to void ir entering the iruit To fill the domesti hot wter tnk 1 Open every hot wter tp in turn to purge ir from the system pipe work. 2 Open the old wter supply vlve. 3 Close ll wter tps fter ll ir is purged. 4 Chek for wter leks. 5 Mnully operte the field-instlled pressure relief vlve to ensure free wter flow through the dishrge pipe To insulte the wter piping The piping in the omplete wter iruit MUST e insulted to prevent ondenstion during defrost opertion nd redution of the heting pity. If the temperture is higher thn 30 C nd the humidity is higher thn RH 80%, the thikness of the insultion mterils should e t lest 20 mm to prevent ondenstion on the surfe of the insultion. 7.9 Conneting the eletril wiring Pressure relief low-out The low out should e onneted to n pproprite drin ording to the pplile legisltion. It is reommended to use tundish To fill the wter iruit 1 Connet the wter supply hose to the fill vlve Aout onneting the eletril wiring Before onneting the eletril wiring Mke sure: The refrigernt piping is onneted nd heked The wter piping is onneted Plese fill with wter through onnetion OR. Both iruits (min nd dditionl) will e filled. Instller referene guide 32 Dikin Altherm Low temperture split

33 7 Instlltion Typil workflow Conneting the eletril wiring typilly onsists of the following stges: 1 Mking sure the power supply system omplies with the eletril speifitions of the het pump. 2 Conneting the eletril wiring to the outdoor unit. 3 Conneting the eletril wiring to the indoor unit. 4 Conneting the min power supply. 5 Conneting the kup heter power supply. 6 Conneting the user interfe. 7 Conneting the shut off vlves. 8 Conneting the eletril meters. 9 Conneting the domesti hot wter pump. 10 Conneting the lrm output. 11 Conneting the hngeover to n externl het soure. 12 Conneting the power onsumption digitl inputs Aout eletril ompline Only for ERLQ006CAV3+ERLQ008CAV3 Equipment omplying with EN/IEC (Europen/ Interntionl Tehnil Stndrd setting the limits for hrmoni urrents produed y equipment onneted to puli low-voltge systems with input urrent >16 A nd 75 A per phse.). Only for indoor units See "7.9.8 To onnet the kup heter power supply" on pge 35. Wire type Single ore wire Strnded ondutor wire with round rimp-style terminl A Instlltion method A Curled single ore wire Srew Flt wsher Terminl Srew B Flt wsher Preutions when lying power wiring: AA Do not onnet wiring of different thiknesses to the power terminl lok (slk in the power wiring my use norml het). When onneting wiring whih is the sme thikness, do s shown in the figure elow. B Preutions when onneting the eletril wiring Also red the preutions nd requirements in the following hpters: Generl sfety preutions Preprtion DANGER: RISK OF ELECTROCUTION More informtion out the legend nd the lotion of the wiring digrm of the unit n e found in "14.6 Wiring digrm" on pge 78. WARNING ALWAYS use multiore le for power supply les Guidelines when onneting the eletril wiring Keep the following in mind: If strnded ondutor wires re eing used, instll round rimpstyle terminl on the tip. Ple the round rimp-style terminl on the wire up to the overed prt nd fsten the terminl with the pproprite tool. For wiring, use the designted power wire nd onnet firmly, then seure to prevent outside pressure eing exerted on the terminl ord. Use n pproprite srewdriver for tightening the terminl srews. A srewdriver with smll hed will dmge the hed nd mke proper tightening impossile. Over-tightening the terminl srews my rek them. Tightening torques Item Tightening torque (N m) M4 (X1M) 1.2~1.5 M4 (erth) To onnet the eletril wiring on the outdoor unit 1 Remove the 2 swith ox over srews. 2 Remove the swith ox over. 2 1 Strnded ondutor wire Round rimp-style terminl Use the following methods for instlling wires: 2 3 Strip insultion (20 mm) from the wires. Dikin Altherm Low temperture split Instller referene guide 33

34 7 Instlltion + 4 Open the wire lmp. Strip wire end to this point Exessive strip length my use eletril shok or lekge. 5 Connet the interonnetion le nd power supply s follows: 3 Routing of the wiring inside the unit should e s follows: Instll the swith ox over To onnet the eletril wiring on the indoor unit 1 To open the indoor unit, see "7.2.3 To open the indoor unit" on pge 22 nd "7.2.4 To open the swith ox over of the indoor unit" on pge Wiring should enter the unit from the top: 4 Fix the le with le ties to the le tie mountings to ensure strin relief nd to mke sure tht it does NOT ome in ontt with the piping nd shrp edges. To ess the domesti hot wter temperture sensor, the swith ox n e tilted. The swith ox should NOT e removed from the unit. Routing Possile les (depending on unit type nd instlled options) Preferentil power supply ontt Low voltge User interfe Power onsumption digitl inputs (field supply) Outdoor mient temperture sensor (option) Indoor mient temperture sensor (option) Eletril meters (field supply) Sfety thermostt (field supply) Interonnetion le High voltge power supply Norml kwh rte power supply Preferentil kwh rte power supply Power supply for kup heter Power supply for ottom plte heter (option) Het pump onvetor (option) High voltge ontrol signl Room thermostt (option) Shut-off vlve (field supply) Domesti hot wter pump (field supply) Alrm output Chngeover to externl het soure ontrol Spe het opertion ontrol Instller referene guide 34 Dikin Altherm Low temperture split

35 7 Instlltion CAUTION Do NOT push or ple redundnt le length in the unit To onnet the min power supply 1 Connet the min power supply. In se of norml kwh rte power supply X1A X19A X5M To onnet the kup heter power supply CAUTION To gurntee the unit is ompletely erthed, lwys onnet the kup heter power supply nd the erth le. Mke sure tht the power supply is in ordne with the kup heter pity, s listed in the tle elow. X2M X6YB Bkup heter type Bkup heter pity Power supply Mximum running urrent Z mx (Ω) *3V 3 kw 1~ 230 V 13 A A5P K3M K2M X1M X6Y X6YA 1 Connet the kup heter power supply. A doule pole fuse is used for F1B. Bkup heter type 3 kw 1~ 230 V (*3V) Connetions to kup heter power supply F1B L N Legend: see illustrtion elow. In se of preferentil kwh rte power supply Connet X6Y to X6YB. 3 4 X5M X1A X19A X2M X1M X2M X6Y X6YB A5P K3M K2M X1M 2 Fix the le with le ties to the le tie mountings To onnet the user interfe S1S L N L N Interonnetion le (=min power supply) Norml kwh rte power supply Preferentil power supply ontt 2 Fix the le with le ties to the le tie mountings. In se of preferentil kwh rte power supply, onnet X6Y to X6YB. The neessity of seprte norml kwh rte power supply to indoor unit () X2M30/31 depends on the type of preferentil kwh rte power supply. Seprte onnetion to the indoor unit is required: if preferentil kwh rte power supply is interrupted when tive, OR if no power onsumption of the indoor unit is llowed t the preferentil kwh rte power supply when tive. If you use 1 user interfe, you n instll it t the indoor unit (for ontrol lose to the indoor unit), or in the room (when used s room thermostt). If you use 2 user interfes, you n instll 1 user interfe t the indoor unit (for ontrol lose to the indoor unit) + 1 user interfe in the room (used s room thermostt). The user interfe n only e used s room thermostt of the min zone. The proedure differs slightly depending on where you instll the user interfe. Dikin Altherm Low temperture split Instller referene guide 35

36 7 Instlltion # At the indoor unit In the room 1 Connet the user interfe le to the indoor unit. Fix the le with le ties to the le tie mountings. 1 2 X5M 4A From the rer PCB 4B From the left PCB 1 1 4C From the top 4D From the top entre A5P A2P A2P PCB PCB 1 1 Min user interfe () Optionl user interfe 2 Insert srewdriver into the slots underneth the user interfe nd refully seprte the feplte from the wllplte. The PCB is mounted in the feplte of the user interfe. Be reful NOT to dmge it. 3 Fix the wllplte of the user interfe to the sheet metl of the unit. Be reful NOT to distort the shpe of the kside of the user interfe y overtightening the mounting srews. Fix the wllplte of the user interfe to the wll. Noth this prt for the wiring to pss through with nippers et. Seure the wiring to the front prt of the sing using the wiring retiner nd lmp To onnet the shut-off vlve 1 Connet the vlve ontrol le to the pproprite terminls s shown in the illustrtion elow K3M Wiring is different for NC (norml losed) vlve nd NO (norml open) vlve. NO X1M X2M K3M NC X1M X2M K2M K2M M2S M2S 4 Connet s shown in 4A. Connet s shown in 4A, 4B, 4C or 4D. 5 Reinstll the feplte onto the wllplte. Be reful NOT to pinh the wiring when tthing the frontplte to the unit. () The min user interfe is required for opertion, ut hs to e ordered seprtely (mndtory option). 2 Fix the le with le ties to the le tie mountings To onnet the eletril meters In se of n eletril meter with trnsistor output, hek the polrity. The positive polrity MUST e onneted to X5M/7 nd X5M/9; the negtive polrity to X5M/8 nd X5M/10. 1 Connet the eletril meters le to the pproprite terminls s shown in the illustrtion elow. Instller referene guide 36 Dikin Altherm Low temperture split

37 7 Instlltion X5M To onnet the power onsumption digitl inputs 1 Connet the power onsumption digitl inputs le to the pproprite terminls s shown in the illustrtion elow. X5M A5P X801M A8P A5P S2S S3S 2 Fix the le with le ties to the le tie mountings To onnet the domesti hot wter pump 1 Connet the domesti hot wter pump le to the pproprite terminls s shown in the illustrtion elow. X2M S6S S7S S8S S9S Instlltion of EKRP1AHTA is required. 2 Fix the le with le ties to the le tie mountings. K3M K2M X1M To onnet the sfety thermostt (norml losed ontt) 1 Connet the sfety thermostt (norml losed) le to the pproprite terminls s shown in the illustrtion elow. X5M M2P 1~ M 2 Fix the le with le ties to the le tie mountings To onnet the lrm output 1 Connet the lrm output le to the pproprite terminls s shown in the illustrtion elow. X5M A5P X2M 29 2 Fix the le with le ties to the le tie mountings. A4P X1M YC Y1 Y2 Y3 Y4 A5P K3M K2M Instlltion of EKRP1HB is required. X1M 2 Fix the le with le ties to the le tie mountings. Instlltion of sfety thermostt (field supply) is required, otherwise the unit will NOT operte. A sfety thermostt MUST e instlled on the min zone to void too high wter tempertures in this zone. The sfety thermostt is typilly thermosttilly ontrolled vlve with norml losed ontt. When the wter temperture in the min zone is too high, the ontt will open nd the user interfe will show 8H 02 error. ONLY the min pump will stop. Dikin Altherm Low temperture split Instller referene guide 37

38 8 Configurtion 7.10 Finishing the outdoor unit instlltion To finish the outdoor unit instlltion f 1 Insulte nd fix the refrigernt piping nd interonnetion le s follows: d e f d e Gs pipe Gs pipe insultion Interonnetion le Liquid pipe Liquid pipe insultion Finishing tpe 2 Instll the servie over To lose the outdoor unit 1 Close the swith ox over. 2 Close the servie over. When losing the outdoor unit over, mke sure tht the tightening torque does NOT exeed 4.1 N m Finishing the indoor unit instlltion To fix the user interfe over to the indoor unit 1 Mke sure tht the front pnel is removed from the indoor unit. See "7.2.3 To open the indoor unit" on pge Plug the user interfe over into the hinges. 8 Configurtion 8.1 Overview: Configurtion This hpter desries wht you hve to do nd know to onfigure the system fter it is instlled. Why If you do NOT onfigure the system orretly, it might NOT work s expeted. The onfigurtion influenes the following: The lultions of the softwre Wht you n see on nd do with the user interfe How You n onfigure the system using two different methods. Method Configuring vi the user interfe Configuring vi the PC onfigurtor Desription First time Quik wizrd. When you turn ON the user interfe for the first time (vi the indoor unit), quik wizrd strts to help you onfigure the system. Afterwrds. If neessry, you n mke hnges to the onfigurtion fterwrds. You n prepre the onfigurtion off-site on PC nd fterwrds uplod the onfigurtion to the system with the PC onfigurtor. See lso: "8.1.1 To onnet the PC le to the swith ox" on pge 38. When the instller settings re hnged, the user interfe will request to onfirm. When onfirmed, the sreen will shortly turn OFF nd "usy" will e displyed for severl seonds. Aessing settings Legend for tles You n ess the instller settings using two different methods. However, NOT ll settings re essile vi oth methods. If so, the orresponding tle olumns in this hpter re set to N/A (not pplile). Method Aessing settings vi the redrum in the menu struture. Aessing settings vi the ode in the overview settings. Column in tles # Code See lso: "To ess the instller settings" on pge 39 "8.5 Menu struture: Overview instller settings" on pge To onnet the PC le to the swith ox 3 Mount the front pnel to the indoor unit To lose the indoor unit 1 Close the swith ox over. 2 Reinstll the top plte. 3 Reinstll the front pnel. Prerequisite: The EKPCCAB kit is required. 1 Connet the le with USB onnetion to your PC. 2 Connet the plug of the le to X10A on A1P of the swith ox of the indoor unit. A1P X10A When losing the indoor unit over, mke sure tht the tightening torque does NOT exeed 4.1 N m. Instller referene guide 38 Dikin Altherm Low temperture split

39 8 Configurtion 3 Py speil ttention to the position of the plug! H J S T Overview settings d 0e f Confirm Adjust Sroll 00 3 Go to the orresponding seond prt of the setting y using the nd utton Overview settings d 0e f Confirm Adjust Sroll 00 Another le is lredy onneted to X10A. To onnet the PC le to X10A, therefore temporrily disonnet this other le. Do NOT forget to reonnet it fterwrds To ess the most used ommnds To ess the instller settings 1 Set the user permission level to Instller. 2 Go to [A]: > Instller settings. To ess the overview settings 1 Set the user permission level to Instller. 2 Go to [A.8]: > Instller settings > Overview settings. To set the user permission level to Instller 1 Set the user permission level to Adv. end user. 2 Go to [6.4]: > Informtion > User permission level. 3 Press for more thn 4 seonds. Result: is displyed on the home pges. 4 If you do NOT press ny utton for more thn 1 hour or press gin for more thn 4 seonds, the instller permission level swithes k to End user. To set the user permission level to Advned end user 1 Go to the min menu or ny of its sumenus:. 2 Press for more thn 4 seonds. Result: The user permission level swithes to Adv. end user. Additionl informtion is displyed nd "+" is dded to the menu title. The user permission level will sty in Adv. end user until set otherwise. To set the user permission level to End user 1 Press for more thn 4 seonds. Result: The user permission level swithes to End user. The user interfe will return to the defult home sreen. To modify n overview setting Exmple: Modify [1 01] from 15 to Go to [A.8]: > Instller settings > Overview settings. 2 Go to the orresponding sreen of the first prt of the setting y using the nd utton. An dditionl 0-digit is dded to the first prt of the setting when you ess the odes in the overview settings. Exmple: [1 01]: "1" will result in "01". Result: The vlue to e modified is now highlighted. 4 Modify the vlue y using the nd utton d Overview settings e f Confirm Adjust Sroll 5 Repet previous steps if you hve to modify other settings. 6 Push to onfirm the modifition of the prmeter. 7 At instller settings menu, press to onfirm the settings. Instller settings The system will restrt. OK Confirm Adjust Result: The system will restrt. Cnel To opy the system settings from the first to the seond user interfe If seond user interfe is onneted, the instller must first proeed elow instrutions for the proper onfigurtion of the 2 user interfes. This proedure offers you lso the possiility to opy the lnguge set from one user interfe to the other one: e.g. from EKRUCBL2 to EKRUCBL1. 1 When power is turned on for the first time, oth user interfes disply: U5:Auto ddress Push 4 se. to ontinue 00 Tue 15:10 2 Push for 4 seonds on the user interfe on whih you wnt to proeed to the quik wizrd. This user interfe is now the min user interfe. Dikin Altherm Low temperture split Instller referene guide 39

40 8 Configurtion During the quik wizrd, the seond user interfe displys Busy nd will NOT e possile to operte. 3 The quik wizrd will guide you. 4 For proper opertion of the system, the lol dt on the two user interfes must e the sme. If this is NOT the se, oth user interfes will disply: Synhroniztion Dt differene deteted. Plese selet tion: Confirm Send dt Adjust 5 Selet the required tion: Send dt: the user interfe you re operting ontins the orret dt nd the dt on the other user interfe will e overwritten. Reeive dt: the user interfe you re operting does NOT ontin the orret dt nd the dt on the other user interfe will e used to overwrite. 6 The user interfe requests onfirmtion if you re sure to proeed. Strt opy Are you sure you wnt to strt the opy opertion? OK Confirm Adjust Cnel 7 Confirm the seletion on the sreen y pushing nd ll dt (lnguges, shedules et.) will e synhronised from the seleted soure user interfe to the other one. During the opying, oth ontrollers will NOT llow opertion. The opy opertion n tke up until 90 minutes. It is reommended to hnge instller settings, or the onfigurtion of the unit, on the min user interfe. If not, it n tke up to 5 minutes efore these hnges re visile in the menu struture. 8 Your system is now set to e operted y the 2 user interfes To opy the lnguge set from the first to the seond user interfe See "8.1.3 To opy the system settings from the first to the seond user interfe" on pge Quik wizrd: Set the system lyout fter first power ON After first power ON of the system, you re guided on the user interfe to do initil settings: lnguge, dte, time, system lyout. By onfirming the system lyout, you n proeed with the instlltion nd ommissioning of the system. 1 At power ON, the quik wizrd strts s long s the system lyout ws NOT onfirmed yet, y setting the lnguge. Lnguge Selet the desired lnguge Confirm Adjust 2 Set the urrent dte nd time. Dte Wht is the dte tody? Tue 1 Jn 2013 Confirm Adjust Sroll Time Wht is the urrent time? 00 : 00 Confirm Adjust Sroll 3 Set the system lyout settings: Stndrd, Options, Cpities. For more detils, see "8.2 Bsi onfigurtion" on pge 40. A.2 System lyout 1 Stndrd Options Cpities Confirm lyout Selet Sroll 4 After onfigurtion, selet Confirm lyout nd press. Confirm lyout Plese onfirm the system lyout. The system will restrt nd will e redy for first strtup. OK Cnel Confirm Adjust 5 The user interfe re-initilises nd you n proeed the instlltion y setting the other pplile settings nd ommissioning of the system. When the instller settings re hnged, the system will request to onfirm. When onfirmtion is omplete, the sreen will shortly turn OFF nd "usy" will e displyed for severl seonds. 8.2 Bsi onfigurtion Quik wizrd: Lnguge / time nd dte # Code Desription [A.1] N/A Lnguge [1] N/A Time nd dte Quik wizrd: Stndrd Spe heting settings The system n het up spe. Depending on the type of pplition, the spe heting settings must e mde ordingly. Instller referene guide 40 Dikin Altherm Low temperture split

41 8 Configurtion # Code Desription [A.2.1.7] [C-07] Unit ontrol method: 0 (LWT ontrol): Unit opertion is deided sed on the leving wter temperture regrdless the tul room temperture nd/or heting demnd of the room. This is pplile for oth temperture zones. 1 (Ext RT ontrol): Unit opertion is deided y the externl thermostt or equivlent (e.g. het pump onvetor). This is pplile for oth temperture zones. 2 (RT ontrol): Unit opertion for the min temperture zone is deided sed on the mient temperture of the user interfe. The dditionl temperture zone is ontrolled y the externl thermostt. [A.2.1.B] N/A Only if there re 2 user interfes (1 instlled in the room, 1 instlled t the indoor unit): # Code Desription [A.2.1.8] [7-02] The system n supply leving wter to up to 2 wter temperture zones. During onfigurtion, the numer of wter zones must e set. Numer of LWT zones: This unit is designed for 2 leving wter temperture zones. Do NOT hnge this setting. 0 (1 LWT zone): N/A. 1 (2 LWT zones)(defult): 2 leving wter temperture zones. The zone with the lowest leving wter temperture is lled the min leving wter temperture zone. The zone with the highest leving wter temperture is lled the dditionl leving wter temperture zone. In prtie, the min leving wter temperture zone onsists of underfloor heting nd the dditionl wter temperture zone onsists of rditors or het pump onvetors. HPC1 HPC2 HPC3 M HPC1 HPC2 HPC3 M FHL1 FHL2 FHL3 FHL1 FHL2 FHL3 : Add LWT zone : Min LWT zone : At unit : In room s room thermostt : Remote ontroller of the het pump onvetors User interfe lotion: At unit: the other user interfe is utomtilly set to In room nd if RT ontrol is seleted t s room thermostt. In room (defult): the other user interfe is utomtilly set to At unit nd if RT ontrol is seleted to t s room thermostt. Controlling the min zone. # Code Desription [A.2.1.9] [F-0D] When the spe heting ontrol is OFF y the user interfe, the pump is lwys OFF. When the spe heting ontrol is On, you n selet the desired pump opertion mode (only pplile during spe heting). This is pplile for oth temperture zones. Pump opertion mode: 0 (Continuous): Continuous pump opertion, regrdless of thermo ON or OFF ondition. Remrk: ontinuous pump opertion requires more energy thn smple or request pump opertion. d : Spe heting ontrol (user interfe) : OFF : On d: Pump opertion ontinued >> Dikin Altherm Low temperture split Instller referene guide 41

42 8 Configurtion # [A.2.1.9] Code [F-0D] # Desription 1 (Smple): The pump is ON when there is heting demnd nd the leving wter temperture hs NOT rehed the desired temperture yet. When thermo OFF ondition ours, the pump runs every 5 minutes to hek the wter temperture nd demnd heting if neessry. Remrk: Smple is NOT ville in externl room thermostt ontrol or room thermostt ontrol. e d g Code [A.2.2.1] << ontinution Desription [E-05] DHW opertion: Cn the system prepre domesti hot wter? 0 (No): NOT instlled. 1 (Yes)(defult): Instlled. Remrk: The domesti hot wter tnk is y defult instlled. Do NOT hnge this setting. [A.2.2.A] [D-02] The indoor unit offers the possiility to onnet field supplied domesti hot wter pump (On/OFF type). Depending on the instlltion nd onfigurtion on the user interfe, we distinguish its funtionlity. f DHW pump: 0 (No)(defult): NOT instlled. 1 (Seondry rtrn): Instlled for instnt hot wter when wter is tpped. The end-user sets the opertion timing (weekly shedule time) of the domesti hot wter pump when it should run. Control of this pump is possile through the indoor unit. : Spe heting ontrol (user interfe) : OFF : On d: LWT temperture 2 (Disinf. shunt): Instlled for disinfetion. It runs when the disinfetion funtion of the domesti hot wter tnk is running. No further settings re needed. e: Atul f: Desired g: Pump opertion See lso illustrtions elow. ontinued >> # [A.2.1.9] Code [F-0D] Domesti hot wter pump instlled for Desription Instnt hot wter << ontinution 2 (Request)(defult): Pump opertion sed on request. Exmple: Using room thermostt retes thermo ON/ OFF ondition. When there is no suh demnd, the pump is OFF. Remrk: Request is NOT ville in leving wter temperture ontrol. d e Disinfetion g d e f g f d f e g Indoor unit Tnk Domesti hot wter pump (field supply) Heter element (field supply) Non return vlve (field supply) Shower (field supply) Cold wter Thermostts nd externl sensors : Spe heting ontrol (user interfe) : OFF : On Following omintions re possile to ontrol the unit (not pplile when [C 07]=0): When [C 07]=2 (RT ontrol) User interfe t indoor unit(1) Room thermostt t min zone(2) Externl room thermostt t dditionl zone d: Heting demnd (y ext RT or RT) e: Pump opertion Quik wizrd: Options Domesti hot wter settings Following settings must e mde ordingly. When [C 07]=1 (Ext RT ontrol) (1) Not mndtory. (2) When there is no user interfe instlled t the indoor unit, the user interfe in the min zone will funtion s room thermostt AND user interfe. Instller referene guide 42 Dikin Altherm Low temperture split

43 8 Configurtion User interfe t indoor unit Externl room thermostt t min zone Externl room thermostt t dditionl zone If n externl room thermostt is used, the externl room thermostt will ontrol the room frost protetion. However, the room frost protetion is only possile if the leving wter temperture ontrol on the unit's user interfe is turned ON. See "5 Applition guidelines" on pge 10. # Code Desription [A.2.2.4] [C-05] Contt type min [A.2.2.5] [C-06] Contt type dd. In externl room thermostt ontrol, the ontt type of the optionl room thermostt or het pump onvetor for the min leving wter temperture zone must e set. See "5 Applition guidelines" on pge (Thermo ON/OFF): The onneted externl room thermostt or het pump onvetor sends the heting demnd y the sme signl s it is onneted to only 1 digitl input (preserved for the min leving wter temperture zone) on the indoor unit (X2M/1). Selet this vlue in se of onnetion to the het pump onvetor (FWXV). 2 (H/C request)(defult): The onneted externl room thermostt sends heting demnd nd is onneted to the digitl input (preserved for the min leving wter temperture zone) on the indoor unit (X2M/1). Selet this vlue in se of onnetion with the wired (EKRTWA) or wireless (EKRTR1) room thermostt. In externl room thermostt ontrol with 2 leving wter temperture zones, the type of the optionl room thermostt for the dditionl leving wter temperture zone must e set. See "5 Applition guidelines" on pge (Thermo ON/OFF): See Contt type min. Conneted on the indoor unit (X2M/1). 2 (H/C request)(defult): See Contt type min. Conneted on the indoor unit (X2M/1). # Code Desription [A.2.2.B] [C-08] Externl sensor Digitl I/O PCB When n optionl externl mient sensor is onneted, the type of the sensor must e set. See "5 Applition guidelines" on pge (No)(defult): NOT instlled. The thermistor in the user interfe nd in the outdoor unit re used for mesurement. 1 (Outdoor sensor): Instlled. The externl outdoor sensor will e used to mesure the outdoor mient temperture. Remrk: For some funtionlity, the temperture sensor in the outdoor unit is still used. 2 (Room sensor): Instlled. The temperture sensor in the user interfe is NOT used nymore. Remrk: This vlue hs only mening in room thermostt ontrol. Modifition of these settings is only needed when the optionl digitl I/O PCB is instlled. The digitl I/O PCB hs multiple funtionlity whih need to e onfigured. See "5 Applition guidelines" on pge 10. # Code Desription [A ] [C-02] Not pplile. [A ] [D-07] Not pplile (red only). [A ] [C-09] Alrm output [A ] [F-04] Bottom plte heter Alrm output logi Indites the logi of the lrm output on the digitl I/O PCB during mlfuntioning. 0 (Normlly open)(defult): The lrm output will e powered when n lrm ours. By setting this vlue, distintion is mde etween mlfuntioning nd detetion of power filure of the unit. 1 (Normlly losed): The lrm output will NOT e powered when n lrm ours. Only pplile for EHVZ16. Indites if n optionl ottom plte heter is instlled on the outdoor unit. The power of the ottom plte heter is in this se supplied y the indoor unit. 0 (No)(defult): NOT instlled. 1 (Yes): Instlled. Remrk: If this vlue is set, the output on the digitl I/ O PCB nnot e used for spe heting output. See "5 Applition guidelines" on pge 10. [C-09] Alrm No lrm No power supply to unit 0 (defult) Closed output Open output Open output 1 Open output Closed output Dikin Altherm Low temperture split Instller referene guide 43

44 8 Configurtion Demnd PCB The demnd PCB is used to enle the power onsumption ontrol y digitl inputs. See "5 Applition guidelines" on pge 10. # Code Desription [A.2.2.7] [D-04] Demnd PCB Energy metering Only pplile for EHVZ Indites if the optionl demnd PCB is instlled. 0 (No)(defult) 1 (Pwr onsmp trl) When energy metering is performed y the use of externl power meters, onfigure the settings s desried elow. Selet the pulse frequeny output of eh power meter in ordne with the power meter speifitions. It is possile to onnet (up to 2) power meters with different pulse frequenies. When only 1 or no power meter is used, selet No to indite the orresponding pulse input is NOT used. # Code Desription [A.2.2.8] [D 08] Optionl externl kwh meter 1: 0 (No): NOT instlled 1: Instlled (0.1 pulse/kwh) 2: Instlled (1 pulse/kwh) 3: Instlled (10 pulse/kwh) 4: Instlled (100 pulse/kwh) 5: Instlled (1000 pulse/kwh) [A.2.2.9] [D 09] Optionl externl kwh meter 2: 0 (No): NOT instlled 1: Instlled (0.1 pulse/kwh) 2: Instlled (1 pulse/kwh) 3: Instlled (10 pulse/kwh) 4: Instlled (100 pulse/kwh) 5: Instlled (1000 pulse/kwh) Quik wizrd: Cpities (energy metering) The pities of ll eletril heters must e set for the energy metering nd/or power onsumption ontrol feture to work properly. When mesuring the resistne vlue of eh heter, you n set the ext heter pity nd this will led to more urte energy dt. # Code Desription [A.2.3.2] [6-03] BUH: step 1: The pity of the first step of the kup heter t nominl voltge. Nominl vlue 3 kw. Defult: 3 kw. Rnge: 0~10 kw (in steps of 0.2 kw) [A.2.3.6] [6-07] Bottom plte heter: Only pplies to n optionl ottom plte heter (EKBPHTH16A). The pity of the optionl ottom plte heter t nominl voltge. Defult: 0 W. Rnge: 0~200 W (in steps of 10 W) Spe heting ontrol The si required settings in order to onfigure the spe heting of your system re desried in this hpter. The wether-dependent instller settings define the prmeters for the wether-dependent opertion of the unit. When wether-dependent opertion is tive, the wter temperture is determined utomtilly depending on the outdoor temperture. Low outdoor tempertures will result in wrmer wter nd vie vers. During wether-dependent opertion, the user hs the possiility to shift up or down the trget wter temperture y mximum of 5 C. See the user referene guide nd/or opertion mnul for more detils out this funtion. Leving wter temperture: Min zone # Code Desription [A ] N/A LWT setpoint mode: Fixed (defult) The desired leving wter temperture is: NOT wether-dependent (i.e. does NOT depend on the outdoor mient temperture) fixed in time (i.e., NOT sheduled) Wether dep.: The desired leving wter temperture is: wether-dependent (i.e. depends on the outdoor mient temperture) fixed in time (i.e., NOT sheduled) # Code Desription [A ] N/A << ontinution ontinued >> Fixed/sheduled: The desired leving wter temperture is: NOT wether-dependent (i.e., does NOT depend on the outdoor mient temperture) ording shedule. The sheduled tions onsists of desired shift tions, either preset or ustom. Remrk: This vlue n only e set in leving wter temperture ontrol. WD/sheduled: The desired leving wter temperture is: wether-dependent (i.e., does depend on the outdoor mient temperture) ording shedule. The sheduled tions onsists of desired leving wter tempertures either preset or ustom. Remrk: This vlue n only e set in leving wter temperture ontrol. Instller referene guide 44 Dikin Altherm Low temperture split

45 8 Configurtion # Code Desription [ ] [1-00] [1-01] [1-02] [1-03] Set wether-dependent heting: T t [1-02] [1-03] [1-00] [1-01] T t : Trget leving wter temperture (min) T : Outdoor temperture # Code Desription [ ] [1-00] [1-01] [1-02] [1-03] << ontinution Leving wter temperture: Additionl zone T ontinued >> [1-00]: Low outdoor mient temperture. 40 C~+5 C (defult: 10 C) [1-01]: High outdoor mient temperture. 10 C~25 C (defult: 15 C) [1-02]: Desired leving wter temperture when the outdoor temperture equls or drops elow the low mient temperture. [9 01]~[9 00] (defult: 35 C). Note: This vlue should e higher thn [1-03] s for low outdoor tempertures wrmer wter is required. [1-03]: Desired leving wter temperture when the outdoor temperture equls or rises ove the high mient temperture. [9 01]~min(45, [9 00]) C (defult: 25 C). Note: This vlue should e lower thn [1-02] s for high outdoor tempertures less wrm wter is required. Only pplile if 2 leving wter temperture zones re present. # Code Desription [A ] N/A LWT setpoint mode: Fixed (defult): The desired leving wter temperture is: NOT wether-dependent (i.e. does NOT depend on the outdoor mient temperture) fixed in time (i.e., NOT sheduled) Wether dep.: The desired leving wter temperture is: wether-dependent (i.e. depends on the outdoor mient temperture) fixed in time (i.e., NOT sheduled) Fixed/sheduled: The desired leving wter temperture is: NOT wether-dependent (i.e., does NOT depend on the outdoor mient temperture) ording shedule. The sheduled tions re On or OFF. Remrk: This vlue n only e set in leving wter temperture ontrol. WD/sheduled: The desired leving wter temperture is: wether-dependent (i.e., does depend on the outdoor mient temperture) ording shedule. The sheduled tions re On or OFF. Remrk: This vlue n only e set in leving wter temperture ontrol. # Code Desription [ ] [0-00] [0-01] [0-02] [0-03] Set wether-dependent heting: T t [0-01] [0-00] [0-03] [0-02] T T t : Trget leving wter temperture (dditionl) T : Outdoor temperture ontinued >> Dikin Altherm Low temperture split Instller referene guide 45

46 8 Configurtion # [ ] Code Desription # [0-00] << ontinution [0-01] [0-03]: Low outdoor mient temperture. 40 C~+5 C (defult: 10 C) [0-02] [0-03] Code [A ] [0-02]: High outdoor temperture. 10 C~25 C 15 C) [8-05] No (defult): disled. Note: The desired leving wter temperture needs to e set on the user interfe. mient (defult: Yes: enled. Note: The desired leving wter temperture n only e red out on the user interfe [0-01]: Desired leving wter temperture when the outdoor temperture equls or drops elow the low mient temperture. [9 05]~[9 06] (defult: 45 C). Note: This vlue should e higher thn [0-00] s for low outdoor tempertures wrmer wter is required. [0-00]: Desired leving wter temperture when the outdoor temperture equls or rises ove the high mient temperture. [9 05]~min(45, [9 06]) C (defult: 35 C). Note: This vlue should e lower thn [0-01] s for high outdoor tempertures less wrm wter is required. Desription Modulted LWT: Only pplile for the min zone. When leving wter temperture modultion is enled, the wether dependent urve needs to e set to higher position thn [8-06] plus the minimum leving wter temperture setpoint required to reh stle ondition on the omfort setpoint for the room. To inrese effiieny, modultion n lower the leving wter setpoint. By setting the wether dependent urve to higher position, it nnot drop elow the minimum setpoint. Refer to the illustrtion elow. Tt +[8-06] [8-06] Leving wter temperture: Delt T soure When oth temperture zones hve heting demnd, oth pumps will operte t full speed. When only 1 temperture zone hs heting demnd, only 1 pump will operte nd the flow will e ontrolled to relize temperture differene etween the entering nd the leving wter of [9 09] on tht zone. Only 1 temperture differene [9 09] n e seleted, this is then pplile for oth temperture zones. # [A ] Code [9-09] Only pplile in se of room thermostt ontrol. When using the room thermostt funtionlity, the ustomer needs to set the desired room temperture. The unit will supply hot wter to the het emitters nd the room will e heted. Additionlly, lso the desired leving wter temperture must e onfigured: when turning on the modultion, the desired leving wter temperture will e lulted utomtilly y the unit (sed on the preset tempertures, if wether-dependent is seleted, modultion will e done sed on the desired wether-dependent tempertures); when turning off the modultion, you n set the desired leving wter temperture on the user interfe. Moreover, with the modultion turned on, the desired leving wter temperture is lowered or rised in funtion of the desired room temperture nd the differene etween the tul nd the desired room temperture. This results in: stle room tempertures extly temperture (higher omfort level) mthing the T wter tempertures s low s possile to mth the desired temperture (higher effiieny) Wether-dependent urve Minimum leving wter temperture setpoint required to reh stle ondition on the omfort setpoint for the room. Leving wter temperture: Emitter type This setting only pplies to the min zone. Only pplile in se of room thermostt ontrol. Depending on the system wter volume nd the het emitters type, the het up of spe n tke longer. This setting n ompenste for slow or quik heting system during the het up yle. Note: The setting of the emitter type will influene the mximum modultion of the desired leving wter temperture. Therefore it is importnt to set this orretly. # [A ] Code [9-0B] Desription Emitter type: Set for the min temperture zone. Retion time of the system: Quik Exmple: Smll wter volume nd fn oils. Slow Exmple: Lrge wter volume, floor heting loops. desired less On/OFF yles (lower noise level, higher omfort nd higher effiieny) 46 Desription Heting: Required temperture differene etween entering nd leving wter. Rnge: 3 C~10 C (in steps of 1 C; defult vlue: 5 C). Leving wter temperture: Modultion Instller referene guide Domesti hot wter ontrol Configuring the desired tnk temperture The domesti hot wter n e prepred in 3 different wys. They differ from eh other y the wy the desired tnk temperture is set nd how the unit ts upon it. Dikin Altherm Low temperture split

47 8 Configurtion # Code Desription [A.4.1] [6-0D] Domesti hot wter Type: 0 (Rehet only): Only rehet opertion is llowed. 1 (Rehet + shed.): The domesti hot wter tnk is heted ording to shedule nd etween the sheduled hetup yles, rehet opertion is llowed. 2 (Sheduled only): The domesti hot wter tnk n ONLY e heted ording to shedule. See "8.3.2 Domesti hot wter ontrol: dvned" on pge 50 for more detils. There is risk of spe heting pity shortge/omfort prolem (in se of frequent domesti hot wter opertion, frequent nd long spe heting interruption will hppen) when seleting [6 0D]=0 ([A.4.1] Domesti hot wter Type=Rehet only). Mximum DHW temperture setpoint The mximum temperture tht users n selet for the domesti hot wter. You n use this setting to limit the tempertures t the hot wter tps. During disinfetion of the domesti hot wter tnk, the DHW temperture n exeed this mximum temperture. Limit the mximum hot wter temperture ording to the pplile legisltion. # Code Desription [A.4.5] [6-0E] Mximum setpoint The mximum temperture tht users n selet for the domesti hot wter. You n use this setting to limit the temperture t the hot wter tps. Rnge: 40 C~60 C (defult: 60 C). The mximum temperture is NOT pplile during disinfetion funtion. See disinfetion funtion Contt/helpdesk numer # Code Desription [6.3.2] N/A Numer tht users n ll in se of prolems. 8.3 Advned onfigurtion/ optimiztion Spe heting opertion: dvned Preset leving wter temperture You n define preset leving wter tempertures: eonomi (denotes the desired leving wter temperture whih results in the lowest energy onsumption) omfort (denotes the desired leving wter temperture whih results in the highest energy onsumption). Preset vlues mke it esy to use the sme vlue in the shedule or to djust the desired leving wter temperture ording to the room temperture (see modultion). If you lter wnt to hnge the vlue, you ONLY hve to do it in one ple. Depending on whether the desired leving wter temperture is wether dependent or NOT, the desired shift vlues or the solute desired leving wter temperture should e speified. The preset leving wter tempertures re ONLY pplile for the min zone, s the shedule for the dditionl zone onsists of On/OFF tions. Selet preset leving wter tempertures in ordne with the design nd seleted het emitters to ensure the lne etween desired room nd leving wter tempertures. # Code Desription Preset leving wter temperture for the min leving wter temperture zone in se of NOT wether dependent [ ] [8-09] Comfort (heting) [ ] [8-0A] Eo (heting) [9 01]~[9 00] (defult: 35 C) [9 01]~[9 00] (defult: 33 C) Preset leving wter temperture (shift vlue) for the min leving wter temperture zone in se of wether dependent [ ] N/A Comfort (heting) [ ] N/A Eo (heting) 10 C~+10 C (defult: 0 C) 10 C~+10 C (defult: 2 C) Temperture rnges (leving wter tempertures) The purpose of this setting is to prevent seleting wrong (i.e. too hot or too old) leving wter temperture. Therefore the ville desired heting temperture rnge n e onfigured. In se of floor heting pplition it is importnt to limit the mximum leving wter temperture t heting opertion ording to the speifitions of the floor heting instlltion. When djusting the leving wter temperture rnges, ll desired leving wter tempertures re lso djusted to gurntee they re etween the limits. Alwys lne etween the desired leving wter temperture with the desired room temperture nd/or the pity (ording to the design nd seletion of the het emitters). The desired leving wter temperture is the result of severl settings (preset vlues, shift vlues, wether dependent urves, modultion). As result, too high or too low leving wter tempertures ould our whih led to overtempertures or pity shortge. By limiting the leving wter temperture rnge to dequte vlues (depending on the het emitter), suh situtions n e voided. Exmple: Set the minimum leving wter temperture to 28 C to void NOT to e le to het up the room: leving wter tempertures MUST e suffiiently higher thn the room tempertures (in heting). Dikin Altherm Low temperture split Instller referene guide 47

48 8 Configurtion # Code Desription Leving wter temperture rnge for the min leving wter temperture zone (= the leving wter temperture zone with the lowest leving wter temperture) [A ] [9-00] Mximum temp (heting) 37 C~55 C (defult: 55 C) [A ] [9-01] Minimum temp (heting) 15 C~37 C (defult: 25 C) Leving wter temperture rnge for the dditionl leving wter temperture zone (= the leving wter temperture zone with the highest leving wter temperture) [A ] [9-06] Mximum temp (heting) 37 C~55 C (defult: 55 C) [A ] [9-05] Minimum temp (heting) 15 C~37 C (defult: 25 C) Leving wter temperture overshoot temperture This funtion defines how muh the wter temperture my rise ove the desired leving wter temperture efore the ompressor stops. The ompressor will strtup gin when the leving wter temperture drops elow the desired leving wter temperture. # Code Desription N/A [9-04] 1 C~4 C (defult: 1 C) Leving wter temperture ompenstion round 0 C In heting opertion, the desired leving wter temperture is lolly inresed round n outdoor temperture of 0 C. This ompenstion n e seleted when using n solute or wether dependent desired temperture (see illustrtion elow). Use this setting to ompenste for possile het losses of the uilding due to the evportion of melted ie or snow (e.g. in old region ountries). T t R 0 C L T A T A T t T t R 0 C L T A Asolute desired LWT Wether dependent desired LWT Amient temperture ( C) Desired leving wter temperture # Code Desription N/A [D-03] 0 (disled) (defult) 1 (enled) L=2 C, R=4 C ( 2 C<T A <2 C) 2 (enled) L=4 C, R=4 C ( 2 C<T A <2 C) 3 (enled) L=2 C, R=8 C ( 4 C<T A <4 C) 4 (enled) L=4 C, R=8 C ( 4 C<T A <4 C) Leving wter temperture mximum modultion ONLY pplile in room thermostt ontrol nd when modultion is enled. The mximum modultion (=vrine) on the desired leving wter temperture deided on the differene etween the tul nd desired room temperture, e.g. 3 C modultion mens the desired leving wter temperture n e inresed or lowered y 3 C. Inresing the modultion results in etter performne (less On/OFF, fster het up), ut note tht depending on the het emitter, there MUST ALWAYS e lne (refer to the design nd seletion of the het emitters) etween the desired leving wter temperture nd the desired room temperture. # Code Desription N/A [8-06] 0 C~10 C (defult: 3 C) Temperture rnges (room temperture) ONLY pplile in room thermostt ontrol. In order to sve energy y preventing overheting the room, you n limit the rnge of the room temperture. When djusting the room temperture rnges, ll desired room tempertures re lso djusted to gurntee they re etween the limits. # Code Desription Room temp. rnge [A ] [3-06] Mximum temp (heting) 18 C~30 C (defult: 30 C) [A ] [3-07] Minimum temp (heting) Room temperture step 12 C~18 C (defult: 12 C) ONLY pplile in room thermostt ontrol nd when the temperture is displyed in C. # Code Desription [A.3.2.4] N/A Room temp. step Room temperture hysteresis 1 C (defult). The desired room temperture on the user interfe is settle per 1 C. 0.5 C. The desired room temperture on the user interfe is settle per 0.5 C. The tul room temperture is displyed with n ury of 0.1 C. ONLY pplile in se of room thermostt ontrol. The hysteresis nd round the desired room temperture is settle. It is reommended NOT to hnge the room temperture hysteresis s it is set for n optiml use of the system. [9-0C] d d Room temperture Atul room temperture Desired room temperture Time # Code Desription N/A [9-0C] 1 C~6 C (defult: 1 C) Room temperture offset ONLY pplile in se of room thermostt ontrol. You n lirte the (externl) room temperture sensor. It is possile to give n offset to the room thermistor vlue mesured y the user Instller referene guide 48 Dikin Altherm Low temperture split

49 8 Configurtion interfe or y the externl room sensor. The settings n e used to ompenste for situtions where the user interfe or externl room sensor CANNOT e instlled on the idel instlltion lotion (see instlltion mnul nd/or instller referene guide). # Code Desription Room temp. offset: Offset on the tul room temperture mesured on the user interfe sensor. [A.3.2.2] [2-0A] 5 C~+5 C, step 0.5 C (defult: 0 C) Ext. room sensor offset: ONLY pplile if the externl room sensor option is instlled nd onfigured (see [C-08]) [A.3.2.3] [2-09] 5 C~+5 C, step 0.5 C (defult: 0 C) Room frost protetion Room frost protetion prevents the room from getting too old. This setting ehves differently depending on the set unit ontrol method ([C 07]). Perform tions ording to the tle elow: Unit ontrol method ([C 07]) Room thermostt ontrol ([C 07]=2) Externl room thermostt ontrol ([C 07]=1) Leving wter temperture ontrol ([C 07]=0) Room frost protetion Allow for the room thermostt to tke re of room frost protetion: Set [2 06] to "1" Set the room ntifrost temperture ([2 05]). Allow for the externl room thermostt to tke re of room frost protetion: Turn ON the leving wter temperture home pge. Set uto emergeny ([A.5.1.2]) to "1". Room frost protetion is NOT gurnteed. If the system does NOT ontin kup heter, do NOT hnge the defult room ntifrost temperture. If n U4 error ours, room frost protetion is NOT gurnteed. Refer to the setions elow for detiled informtion on room frost protetion in reltion to the pplile unit ontrol method. [C 07]=2: room thermostt ontrol Under room thermostt ontrol, room frost protetion is gurnteed, even if the room temperture home pge is OFF on the user interfe. When room frost protetion ([2 06]) is enled nd the room temperture drops elow the room ntifrost temperture ([2 05]), the unit will supply leving wter to the het emitters to het up the room gin. # Code Desription N/A [2-06] Room frost protetion 0: disled 1: enled (defult) N/A [2-05] Room ntifrost temperture 4 C~16 C (defult: 12 C) If n U5 error ours: when 1 user interfe is onneted, room frost protetion is NOT gurnteed, when 2 user interfes re onneted nd the seond user interfe used for room temperture ontrol is disonneted (due to miswiring, dmge of the le), then room frost protetion is NOT gurnteed. If Emergeny is set to Mnul ([A.5.1.2]=0), nd the unit is triggered to strt emergeny opertion, the user interfe will sk onfirmtion efore strting. Room frost protetion is tive even if the user does NOT onfirm emergeny opertion. [C 07]=1: externl room thermostt ontrol Under externl room thermostt ontrol, room frost protetion is gurnteed y the externl room thermostt, provided tht the leving wter temperture home pge is ON on the user interfe, nd the uto emergeny setting ([A.5.1.2]) is set to "1". Additionlly, limited frost protetion y the unit is possile: In se of Two leving wter temperture zones then the following pplies: When the leving wter temperture home pge is OFF, nd the outdoor mient temperture drops elow 4 C, then the unit will supply leving wter to the het emitters to het up the room gin, nd the leving wter temperture setpoint will e lowered y 5 C. When the leving wter temperture home pge is ON, the outdoor mient temperture drops elow 4 C, then the unit will supply leving wter to the het emitters to het up the room gin, nd the leving wter temperture setpoint will e lowered y 5 C. For the (limited) frost protetion to e possile, uto emergeny MUST e set to Automti ([A.5.1.2]=1). [C 07]=0: leving wter temperture ontrol Under leving wter temperture ontrol, room frost protetion is NOT gurnteed. However, if [2 06] is set to "1", limited frost protetion y the unit is possile: When the leving wter temperture home pge is OFF nd the outdoor mient temperture drops elow 4 C, then the unit will supply leving wter to the het emitters to het up the room gin, nd the leving wter temperture setpoint will e lowered y 5 C. When the leving wter temperture home pge is ON, then the unit will supply leving wter to the het emitters to het up the room ording to norml logi. For the (limited) frost protetion to e possile, uto emergeny MUST e set to Automti ([A.5.1.2]=1). Dikin Altherm Low temperture split Instller referene guide 49

50 8 Configurtion Shut-off vlve The following is only pplile in se of 2 leving wter temperture zones. In se of 1 leving wter temperture zone, onnet the shut-off vlve to the heting output. The shut-off vlve, whih is in the min leving wter temperture zone, output is onfigurle. During defrost opertion, the shut-off vlve is ALWAYS opened. Thermo On/OFF: the vlve loses, depending on [F 0B] when there is no heting demnd from the min zone. # Code Desription [A ] [F-0B] The shut-off vlve: 0 (No)(defult): is NOT influened y heting demnd. 1 (Yes): loses when there is NO heting demnd. The setting [F 0B] is only vlid when there is thermostt or externl room thermostt request setting (NOT in se of leving wter temperture setting). Opertion rnge Depending on the verge outdoor temperture, the opertion of the unit in spe heting is prohiited. Spe heting OFF temp: When the verged outdoor temperture rises ove this vlue, spe heting is turned OFF to void overheting. # Code Desription [A.3.3.1] [4-02] EHVZ04+08: 14 C~35 C (defult: 25 C) EHVZ16: 14 C~35 C (defult: 35 C) Domesti hot wter ontrol: dvned Preset tnk tempertures Only pplile when domesti hot wter preprtion is sheduled or sheduled + rehet. You n define preset tnk tempertures: storge eonomi storge omfort rehet Preset vlues mke it esy to use the sme vlue in the shedule. If you lter wnt to hnge the vlue, you only hve to do it in 1 ple (see lso opertion mnul nd/or user referene guide). Storge omfort # Code Desription [ ] [6-0B] 30 C~min(50, [6 0E]) C (defult: 45 C) Rehet The desired rehet tnk temperture is used: in rehet mode or sheduled + rehet mode: The gurnteed minimum tnk temperture is set y T HP OFF [6 08], whih is either [6 0C] or the wether dependent setpoint, minus the rehet hysteresis. If the tnk temperture drops elow this vlue, the tnk is heted up. during storge omfort, to prioritize the domesti hot wter preprtion. When the tnk temperture rises ove this vlue, domesti hot wter preprtion nd spe heting is exeuted sequentilly. # Code Desription [ ] [6-0C] 30 C~min(50, [6 0E]) C (defult: 45 C) Wether dependent The wether dependent instller settings define the prmeters for the wether dependent opertion of the unit. When wether dependent opertion is tive the desired tnk temperture is determined utomtilly depending on the verged outdoor temperture: low outdoor tempertures will result in higher desired tnk tempertures s the old wter tp is older nd vie vers. In se of sheduled or sheduled+rehet domesti hot wter preprtion, the storge omfort temperture is wether dependent (ording to the wether dependent urve), the storge eonomi nd rehet temperture re NOT wether dependent. In se of rehet only domesti hot wter preprtion, the desired tnk temperture is wether dependent (ording to the wether dependent urve). During wether dependent opertion, the enduser nnot djust the desired tnk temperture on the user interfe. # Code Desription [A.4.6] N/A Wether dependent desired tnk temperture is: Fixed (defult): disled. All desired tnk temperture re NOT wether dependent. Wether dep.: enled. In sheduled or sheduled+rehet mode, the storge omfort temperture is wether dependent. Storge eonomi nd rehet tempertures re NOT wether dependent. In rehet mode, the desired tnk temperture is wether dependent. Note: When the displyed tnk temperture is wether dependent, it nnot e djusted on the user interfe. When progrmming the shedule, you n mke use of the tnk tempertures set s preset vlues. The tnk will then het up until these setpoint tempertures hve een rehed. Additionlly, storge stop n e progrmmed. This feture puts stop to tnk heting even if the setpoint hs NOT een rehed. Only progrm storge stop when tnk heting is solutely undesirle. # Code Desription [ ] [6-0A] 30 C~[6 0E] C (defult: 60 C) Storge eo The storge eonomi temperture denotes the lower desired tnk temperture. It is the desired temperture when storge eonomi tion is sheduled (preferly during dy). Instller referene guide 50 Dikin Altherm Low temperture split

51 8 Configurtion [A.4.7] # Code Desription [0-0E] [0-0D] [0-0C] [0-0B] Wether-dependent urve [0-0C] [0-0B] Limits on het pump opertion T DHW [0-0E] [0-0D] T T DHW : The desired tnk temperture. T : The (verged) outdoor mient temperture [0-0E]: low outdoor mient temperture: 40 C~5 C (defult: 10 C) [0-0D]: high outdoor mient temperture: 10 C~25 C (defult: 15 C) [0-0C]: desired tnk temperture when the outdoor temperture equls or drops elow the low mient temperture: 45 C~[6 0E] C (defult: 60 C) [0-0B]: desired tnk temperture when the outdoor temperture equls or rises ove the high mient temperture: 35 C~[6 0E] C (defult: 55 C) In domesti hot wter opertion, following hysteresis vlues n e set for the het pump opertion: # Code Desription N/A [6-00] The temperture differene determining the het pump ON temperture. Rnge: 2 C~20 C (defult: 2 C) N/A [6-01] The temperture differene determining the het pump OFF temperture. Exmple: T DHW T U =T BUH OFF 60 T HP MAX 50 T HP OFF 48 T HP ON Rnge: 0 C~10 C (defult: 2 C) [6-01] [6-00] T U = 60 C T HP MAX = 50 C HP BUH HP [6-01] = 2 C [6-00] = 2 C BUH Bkup heter HP Het pump. If heting up time y the het pump tkes too long, uxiliry heting y the kup heter n tke ple T BUH OFF Bkup heter OFF temperture (T U ) T HP MAX Mximum het pump temperture t sensor in domesti hot wter tnk T HP OFF Het pump OFF temperture (T HP MAX [6-01]) T HP ON Het pump ON temperture (T HP OFF [6-00]) Domesti hot wter temperture T DHW t T U t User set point temperture (s set on the user interfe) Time Timers for simultneous request spe nd domesti hot wter opertion # Code Desription N/A [8-00] Do not hnge. (defult: 1) N/A [8-01] Mximum running time for domesti hot wter opertion. Domesti hot wter heting stops even when the trget domesti hot wter temperture is NOT rehed. The tul mximum running time lso depends on setting [8 04]. When system lyout = Room thermostt ontrol: This preset vlue is only tken into ount if there is request for spe heting. If there is NO request for spe heting, the tnk is heted until the setpoint hs een rehed. When system lyout Room thermostt ontrol: This preset vlue is lwys tken into ount. Rnge: 5~95 minutes (defult: 30) N/A [8-02] Anti-reyling time. Minimum time etween two yles for domesti hot wter. The tul ntireyling time lso depends on setting [8 04]. Rnge: 0~10 hours (defult: 0.5) (step: 0.5 hour). Remrk: The minimum time is 1/2 hour even when the seleted vlue is 0. N/A [8-04] Additionl running time for the mximum running time depending on the outdoor temperture [4 02]. [8-02]: Anti-reyling time [8-00] [8-01] [8-02] Rnge: 0~95 minutes (defult: 95). 1 Het pump domesti wter heting mode (1=tive, 0=not tive) 2 Hot wter request for het pump (1=request, 0=no request) t Time [8-04]: Additionl running time t [4-02]/[F-01] t [8-01]+ [8-04] [8-02] [8-01] 0 [5-03] [4-02] T A t T A Amient (outdoor) temperture Time Anti-reyle time t Dikin Altherm Low temperture split Instller referene guide 51

52 8 Configurtion Disinfetion Instller referene guide 52 Mximum running urrent The disinfetion funtion disinfets the domesti hot wter tnk y periodilly heting the domesti hot wter to speifi temperture. CAUTION The disinfetion funtion settings MUST e onfigured y the instller ording to the pplile legisltion. # Code Desription [A.4.4.2] [2 00] Opertion dy: 0: Eh dy 1: Mondy 2: Tuesdy 3: Wednesdy 4: Thursdy 5: Fridy 6: Sturdy 7: Sundy [A.4.4.1] [2 01] Disinfetion 0: No 1: Yes [A.4.4.3] [2 02] Strt time: 00~23:00, step: 1:00. [A.4.4.4] [2 03] Temperture trget: 60 C (fixed). [A.4.4.5] [2 04] Durtion: 40~60 minutes, defult: 40 minutes. T DHW T H T U [2-03] [2-04] t T DHW T U [2-02] Domesti hot wter temperture User set point temperture T H High set point temperture [2-03] t Time WARNING Be wre tht the domesti hot wter temperture t the hot wter tp will e equl to the vlue seleted in field setting [2-03] fter disinfetion opertion. When the high domesti hot wter temperture n e potentil risk for humn injuries, mixing vlve (field supply) shll e instlled t the hot wter outlet onnetion of the domesti hot wter tnk. This mixing vlve shll seure tht the hot wter temperture t the hot wter tp never rise ove set mximum vlue. This mximum llowle hot wter temperture shll e seleted ording to the pplile legisltion. CAUTION Be sure tht the disinfetion funtion strt time [A.4.4.3] with defined durtion [A.4.4.5] is NOT interrupted y possile domesti hot wter demnd. In se of error ode AH nd no interruption of the disinfetion funtion ourred due to domesti hot wter tpping, following tions re reommended: When the Domesti hot wter > Type > Rehet or Rehet + shed. is seleted, it is reommended to progrm the strt-up of the disinfetion funtion t lest 4 hours lter thn the lst expeted lrge hot wter tpping. This strt-up n e set y instller settings (disinfetion funtion). When the Domesti hot wter > Type > Sheduled only is seleted, it is reommended to progrm Storge eo 3 hours efore the sheduled strt-up of the disinfetion funtion to prehet the tnk. Disinfetion funtion is restrted in se the domesti hot wter temperture drops 5 C elow the disinfetion trget temperture within the durtion time. An AH error ours if you do the following during disinfetion: Set the user permission level to Instller. Go to the DHW tnk temperture home pge (Tnk). Press to interrupt the disinfetion Het soure settings Bkup heter Bkup heter opertion mode: defines when kup heter opertion is disled or only llowed during domesti hot wter opertion. This setting is only overruled when kup heting is required during defrost opertion or mlfuntioning of the outdoor unit (when [A.5.1.2] is enled). # Code Desription [A.5.1.1] [4 00] Bkup heter opertion: 0: Disled 1 (defult): Enled N/A [5-00] Is kup heter opertion llowed ove equilirium temperture during spe heting opertion? 1: NOT llowed (defult) 0: Allowed [A.5.1.4] [5 01] Equilirium temperture. Outdoor temperture elow whih opertion of the kup heter is llowed. Rnge: 15 C~35 C (defult: 0 C) (step: 1 C) If kup heter opertion during spe heting needs to e limited ut n e llowed for domesti hot wter opertion, then put [4 00] on 1, [5 00] on 1, nd [5 01] on 15 C. Auto emergeny When the het pump fils to operte the kup heter n serve s n emergeny heter nd either utomtilly or non-utomtilly tke over the het lod. When uto emergeny is set to Automti nd het pump filure ours, the kup heter will utomtilly tke over the het lod. When het pump filure ours nd uto emergeny is set to Mnul the domesti hot wter nd spe Dikin Altherm Low temperture split

53 8 Configurtion heting opertions will stop nd need to e reovered mnully. The user interfe will then sk you to onfirm whether the kup heter n tke over the het lod or not. When the het pump fils, will pper on the user interfe. If the house is unttended for longer periods, we reommend tht setting [A.5.1.2] Emergeny shll e set to Automti. # Code Desription [A.5.1.2] N/A Defines whether in n emergeny sitution the kup heter is llowed to utomtilly tke over the entire het lod or whether mnul onfirmtion is required. 0: Mnul (defult) 1: Automti The uto emergeny setting n e set in the menu struture of the user interfe only. If het pump filure ours nd [A.5.1.2] is set to Mnul, the room frost protetion funtion, the underfloor heting sreed dryout funtion, nd the wter pipe ntifreeze funtion will remin tive even if the user does NOT onfirm emergeny opertion. Bottom plte heter Applies only to instlltion with n outdoor unit ERHQ nd the option ottom plte heter kit is instlled. [F-02] Bottom plte heter ON temperture: defines the outdoor temperture elow whih the ottom plte heter will e tivted y indoor unit in order to prevent ie uild-up in the ottom plte of the outdoor unit t lower outdoor tempertures. [F-03] Bottom plte heter hysteresis: defines the temperture differene etween ottom plte heter ON temperture nd the ottom plte heter OFF temperture. Bottom plte heter [F-02] [F-03] T A CAUTION T A Outdoor temperture On OFF The ottom plte heter is ontrolled vi EKRP1HB. # Code Desription N/A [F-02] Bottom plte heter ON temperture: 3 C~10 C (defult: 3 C) N/A [F-03] Hysteresis: 2 C~5 C (defult: 5 C) Dependent from setting [F-04] ontt Y2 loted on digitl I/O PCB (EKRP1HB) ontrols the option ottom plte heter. See illustrtion elow for the shemti lotion of this ontt. For omplete upwiring, see "14.6 Wiring digrm" on pge 78. X1 X2 X3 X4 X2M X1M YC Y1 Y2 Y3 Y System settings Priorities OFF ON SS1 # Code Desription N/A [5 02] Spe heting priority. Defines whether kup heter will ssist the het pump during domesti hot wter opertion. Consequene: Shorter tnk heting opertion time nd shorter interruption of the spe heting yle. This setting MUST lwys e 1. [5 01] Equilirium temperture nd [5 03] Spe heting priority temperture re relted to kup heter. So, you must set [5 03] equl or few degrees higher thn [5 01]. If the kup heter opertion is limited ([4 00]=0) nd the outdoor temperture is lower thn setting [5 03], the domesti hot wter will not e heted with the kup heter. N/A [5 03] Spe heting priority temperture. Auto-restrt Defines the outdoor temperture whih elow the kup heter will ssist during domesti hot wter heting. When power returns fter power supply filure, the uto restrt funtion repplies the remote ontroller settings t the time of the power filure. Therefore, it is reommended to lwys enle the funtion. If the preferentil kwh rte power supply is of the type tht power supply is interrupted, lwys enle the uto restrt funtion. Continuous indoor unit ontrol n e gurnteed independent of the preferentil kwh rte power supply sttus, y onneting the indoor unit to norml kwh rte power supply. # Code Desription [A.6.1] [3 00] Is the uto restrt funtion of the unit llowed? 0: No 1 (defult): Yes Dikin Altherm Low temperture split Instller referene guide 53

54 8 Configurtion Preferentil kwh rte power supply # Code Desription [A.2.1.6] [D 01] Connetion to preferentil kwh rte power supply: 0 (defult): The outdoor unit is onneted to norml power supply. 1: The outdoor unit is onneted to preferentil kwh rte power supply. When the preferentil kwh rte signl is sent y the eletriity ompny, the ontt will open nd the unit will go in fored off mode. When the signl is relesed gin, the voltge-free ontt will lose nd the unit will restrt opertion. Therefore, lwys enle the uto restrt funtion. 2: The outdoor unit is onneted to preferentil kwh rte power supply. When the preferentil kwh rte signl is sent y the eletriity ompny, the ontt will lose nd the unit will go in fored off mode. When the signl is relesed gin, the voltge-free ontt will open nd the unit will restrt opertion. Therefore, lwys enle the uto restrt funtion. [A.6.2.1] [D 00] Whih heters re llowed to operte during preferentil kwh rte power supply? Do NOT use 1 or 3. 0 (defult): None 1: N/A 2: Bkup heter only 3: N/A See tle elow. Setting 2 is only meningful if the preferentil kwh rte power supply is of type 1 or indoor unit is onneted to norml kwh rte power supply (vi X2M/30-31) nd the kup heter is NOT onneted to the preferentil kwh rte power supply. [D 00] Bkup heter Compressor 0 (defult) Fored OFF Fored OFF 2 Allowed Power sving funtion Only pplile for ERLQ004~008CAV3. Defines whether the outdoor unit power supply n e interrupted (internlly y indoor unit ontrol) during stnd-still onditions (no spe heting nor domesti hot wter demnd). The finl deision to llow power interruption of the outdoor unit during stndstill depends on the mient temperture, ompressor onditions nd minimum internl timers. To enle the power sving funtion setting, [E 08] needs to e enled on the user interfe in omintion with the removl of the power sving onnetor t the outdoor unit. The power sving onnetor t the outdoor unit shll only e removed when the min power supply to the pplition is swithed OFF. In se of ERLQ004~008CAV # Code Desription N/A [E 08] Power sving funtion for outdoor unit: 0: Disled 1 (defult): Enled In se of ERHQ011~016BAV3, ERHQ011~016BAW1, ERLQ011~016CAV3, nd ERLQ011~016CAW1 Do NOT hnge the defult setting. # Code Desription N/A [E-08] Power sving funtion for outdoor unit: Power onsumption ontrol 0 (defult): Disled 1: Enled Only pplile for EHVZ See "5 Applition guidelines" on pge 10 for detiled informtion out this funtionlity. Pwr onsumpt. ontrol # Code Desription [A.6.3.1] [4-08] Mode: 0 (No limittion)(defult): Disled. 1 (Continuous): Enled: You n set one power limittion vlue (in A or kw) to whih the system power onsumption will e limited for ll the time. 2 (Digitl inputs): Enled: You n set up to four different power limittion vlues (in A or kw) to whih the system power onsumption will e limited when the orresponding digitl input sks. Instller referene guide 54 Dikin Altherm Low temperture split

55 8 Configurtion # Code Desription [A.6.3.2] [4-09] Type: 0 (Current): The limittion vlues re set in A. 1 (Power)(defult): The limittion vlues re set in kw. [A.6.3.3] [5-05] Vlue: Only pplile in se of full time power limittion mode. 0 A~50 A, step: 1 A (defult: 50 A) [A.6.3.4] [5-09] Vlue: Only pplile in se of full time power limittion mode. 0 kw~20 kw, step: 0.5 kw (defult: 20 kw) Amp. limits for DI: Only pplile in se of power limittion mode sed on digitl inputs nd sed on urrent vlues. [A ] [5-05] Limit DI1 [A ] [5-06] Limit DI2 [A ] [5-07] Limit DI3 [A ] [5-08] Limit DI4 0 A~50 A, step: 1 A (defult: 50 A) 0 A~50 A, step: 1 A (defult: 50 A) 0 A~50 A, step: 1 A (defult: 50 A) 0 A~50 A, step: 1 A (defult: 50 A) kw limits for DI: Only pplile in se of power limittion mode sed on digitl inputs nd sed on power vlues. [A ] [5-09] Limit DI1 [A ] [5-0A] Limit DI2 [A ] [5-0B] Limit DI3 [A ] [5-0C] Limit DI4 0 kw~20 kw, step: 0.5 kw (defult: 20 kw) 0 kw~20 kw, step: 0.5 kw (defult: 20 kw) 0 kw~20 kw, step: 0.5 kw (defult: 20 kw) 0 kw~20 kw, step: 0.5 kw (defult: 20 kw) [A.6.3.7] [4-01] Priority: Not pplile. Averge timer The verge timer orrets the influene of mient temperture vritions. The wether-dependent set point lultion is done on the verge outdoor temperture. The outdoor temperture is verged over the seleted time period. # Code Desription [A.6.4] [1-0A] Outdoor verge timer: 0: No verging (defult) 1: 12 hours 2: 24 hours 3: 48 hours 4: 72 hours Offset temperture externl outdoor mient sensor Only pplile in se of n externl outdoor mient sensor is instlled nd onfigured. You n lirte the externl outdoor mient temperture sensor. It is possile to give n offset to the thermistor vlue. The setting n e used to ompenste for situtions where the externl outdoor mient sensor nnot e instlled on the idel instlltion lotion (see instlltion). # Code Desription [A.6.5] [2 0B] 5 C~5 C, step: 0.5 C (defult: 0 C) Fored defrost You n mnully strt defrost opertion. The deision to exeute the mnul defrost opertion is mde y the outdoor unit nd depends on mient nd het exhnger onditions. When the outdoor unit epted the fored defrost opertion, will e displyed on the user interfe. If is NOT displyed within 6 minutes fter fored defrost opertion ws enled, the outdoor unit ignored the fored defrost request. # Code Desription [A.6.6] N/A Do you wnt to strt defrost opertion? Pump opertion When the pump opertion funtion is disled the pump will stop if the outdoor temperture is higher thn the vlue set y [4 02]. When the pump opertion is enled, the pump opertion is possile t ll outdoor tempertures. # Code Desription N/A [F 00] Pump opertion: 0 (defult): Disled if outdoor temperture is higher thn [4 02]. 1: Possile t ll outdoor tempertures. Pump opertion during flow normlity [F 09] defines whether the pump stops t flow normlity or llow to ontinue opertion when flow normlity ours. This funtionlity is only vlid in speifi onditions where it is preferle to keep the pump tive when T <4 C (pump will e tivted for 10 minutes nd detivted fter 10 minutes). Dikin shll NOT e held lile for ny dmge resulting this funtionlity. # Code Desription N/A [F 09] Pump ontinue opertion when flow normlity: Pump speed limittion 0 (defult): Pump will e detivted. 1: Pump will e tivted when T <4 C (10 minutes ON 10 minutes OFF) Pump speed limittion min zone [9 0E] nd pump speed limittion dditionl zone [9 0D] define the mximum pump speed. In norml onditions, the defult setting should NOT e modified. The pump speed limittion will e overruled when the flow rte is in the rnge of the minimum flow (error 7H). If the power sving funtion is tivted (see [E 08]), the verge outdoor temperture lultion is only possile in se the externl outdoor temperture sensor is used. See "5.6 Setting up n externl temperture sensor" on pge 15. Dikin Altherm Low temperture split Instller referene guide 55

56 8 Configurtion # Code Desription N/A [9 0E] Pump speed limittion min zone 0: No limittion. 1~4: Generl limittion. There is limittion in ll onditions. The required delt T ontrol nd omfort re NOT gurnteed. 5~8 (defult: 6): Limittion when no tutors. When there is no heting output, the pump speed limittion is pplile. When there is heting output, the pump speed is only determined y delt T in reltion to the required pity. With this limittion rnge, delt T is possile nd the omfort is gurnteed. N/A [9 0D] Pump speed limittion dditionl zone 0: No limittion. 1~4: Generl limittion. There is limittion in ll onditions. The required delt T ontrol nd omfort re NOT gurnteed. 5~8 (defult: 6): Limittion when no tutors. When there is no heting output, the pump speed limittion is pplile. When there is heting output, the pump speed is only determined y delt T in reltion to the required pity. With this limittion rnge, delt T is possile nd the omfort is gurnteed. Instller referene guide 56 Dikin Altherm Low temperture split

57 8 Configurtion 8.4 Menu struture: Overview user settings [1] Set time/dte Dte Time Dylight Sving Time Clok type [2] Holidy Holidy Holidy mode From Until Use dy shedule [3] Quiet mode Home < > [2] Holidy Holidy Holidy mode From Until Opertion mode Heting DHW Awy [5] Selet shedules Room temperture LWT min LWT dditionl Tnk temperture [6] Informtion Sensor informtion Energy metering Error hndling User permission level Atutors Opertion modes Running hours Version [7] User settings Disply Temperture lok Set shedules Preset vlues Unit of mesurement Set wether dependent [6.2] [6.3] [6.8] [7.1] Energy metering Consumed ele. Produed energy Error informtion Error history Contt/helpdesk numer Wrning history Version User interfe Indoor unit Outdoor unit Contrst Disply Bklit LCD time User profile Aville home pges [7.3] [7.4] Set shedules Room temp. LWT min LWT dditionl DHW temp Quiet mode DHW pump Preset vlues Room temperture LWT min Tnk temperture Quiet level [7.7] Set wether dependent Min Additionl [7.7.1] Min Set wether-dependent heting [7.7.2] Additionl Set wether-dependent heting Dikin Altherm Low temperture split Instller referene guide 57

58 8 Configurtion Depending on the seleted instller settings, settings will e visile/invisile. 8.5 Menu struture: Overview instller settings [A] Instller settings Lnguge System lyout Spe opertion Domesti hot wter (DHW) Het soures System opertion Commissioning Overview settings [A.2] System lyout Stndrd Options Cpities Confirm lyout [A.2.1] Stndrd Unit type Compressor type Indoor softwre type Bkup heter steps BUH type Preferentil kwh rte Unit ontrol method Numer of LWT zones Pump opertion mode Power sving possile User interfe lotion [A.3] Spe opertion LWT settings Room thermostt Opertion rnge [A.4] Domesti hot wter Type Disinfetion Mximum setpoint SP mode Wether-dependent urve [A.5] Het soures Bkup heter [A.6] System opertion Auto restrt Preferentil kwh rte Pwr onsumpt. ontrol Averging time Ext m. sensor offset Fored defrost [A.7] Commissioning Test run UFH sreed dryout Air purge Atutor test run [A.2.2] Options DHW opertion DHW tnk Contt type min Contt type dd. Digitl I/O PCB Demnd PCB Externl kwh meter Externl kwh meter DHW pump Externl sensor [A.3.1] Leving wter Min Additionl Delt T soure [A.3.2] Room thermostt Room temp. rnge Room temp. offset Ext. room sensor offset Room temp. step [A.3.3] Opertion rnge Spe heting OFF temp [A.4.4] Disinfetion Disinfetion Opertion dy Strt time Temperture trget Durtion [A.5.1] Bkup heter Opertion mode Emergeny Equilirium temp. [A.6.2] Prefer. kwh rte PS Allowed heters Fored pump OFF [A.6.3] Pwr onsmp trl Mode Type Amp. vlue kw vlue Amp. limits for DI kw limits for DI Priority [A.2.2.6] Digitl I/O PCB Ext. kup het sr Solr kit Alrm output Bottom plte heter [A.3.1.1] Min LWT setpoint mode Temperture rnge Modulted LWT Shut-off vlve Emitter type [A.3.1.2] Additionl LWT setpoint mode Temperture rnge [A.3.1.3] Delt T soure Heting Depending on the seleted instller settings, settings will e visile/invisile. Instller referene guide 58 Dikin Altherm Low temperture split

59 9 Commissioning 9 Commissioning 9.1 Overview: Commissioning This hpter desries wht you hve to do nd know to ommission the system fter it is onfigured. Typil workflow Commissioning typilly onsists of the following stges: 1 Cheking the "Cheklist efore ommissioning". 2 Performing n ir purge. 3 Performing test run for the system. 4 If neessry, performing test run for one or more tutors. 5 If neessry, performing n underfloor heting sreed dryout. 9.2 Preutions when ommissioning During the first running period of the unit, the required power my e higher thn stted on the nmeplte of the unit. This phenomenon is used y the ompressor, tht needs ontinuous run time of 50 hours efore rehing smooth opertion nd stle power onsumption. Before strting up the system, the unit MUST e energised for t lest 2 hours. The rnkse heter needs to het up the ompressor oil to void oil shortge nd ompressor rekdown during strtup. NEVER operte the unit without thermistors nd/or pressure sensors/swithes. Burning of the ompressor might result. Do NOT operte the unit until the refrigernt piping is omplete (when operted this wy, the ompressor will rek). 9.3 Cheklist efore ommissioning Do NOT operte the system efore the following heks re OK: You red the omplete instlltion instrutions, s desried in the instller referene guide. The indoor unit is properly mounted. The outdoor unit is properly mounted. The following field wiring hs een rried out ording to this doument nd the pplile legisltion: Between the lol supply pnel nd the outdoor unit Between indoor unit nd outdoor unit Between the lol supply pnel nd the indoor unit Between the indoor unit nd the vlves (if pplile) Between the indoor unit nd the room thermostt (if pplile) The system is properly erthed nd the erth terminls re tightened. The fuses or lolly instlled protetion devies re instlled ording to this doument, nd hve not een ypssed. The power supply voltge mthes the voltge on the identifition lel of the unit. There re NO loose onnetions or dmged eletril omponents in the swith ox. There re NO dmged omponents or squeezed pipes on the inside of the indoor nd outdoor units. Bkup heter iruit reker F1B on the swith ox is turned ON. There re NO refrigernt leks. The refrigernt pipes (gs nd liquid) re thermlly insulted. The orret pipe size is instlled nd the pipes re properly insulted. There is NO wter lek inside the indoor unit. The shut-off vlves re properly instlled nd fully open. The stop vlves (gs nd liquid) on the outdoor unit re fully open. The ir purge vlve is open (t lest 2 turns). The pressure relief vlve purges wter when opened. The minimum wter volume is gurnteed in ll onditions. See "To hek the wter volume" in "6.4 Prepring wter piping" on pge 18. The sfety thermostt is onneted. The softwre is equipped with n "instller-on-site" mode ([4 0E]), tht disles utomti opertion y the unit. At first instlltion, setting [4 0E] is y defult set to "1", mening utomti opertion is disled. All protetive funtions re then disled too. To enle utomti opertion nd the protetive funtions, set [4 0E] to "0". 12 hours fter the first power-on, the unit will utomtilly set [4 0E] to "0", ending "instller-on-site" mode nd enling the protetive funtions. If fter first instlltion the instller returns to the site, the instller hs to set [4 0E] to "1" mnully. 9.4 Cheklist during ommissioning The minimum flow rte during kup heter/defrost opertion is gurnteed in ll onditions. See "To hek the wter volume nd flow rte" in "6.4 Prepring wter piping" on pge 18. To perform n ir purge. To perform test run. To perform n tutor test run. Underfloor sreed dryout funtion The underfloor sreed dryout funtion is strted (if neessry) To hek the minimum flow rte Reommended proedure for the dditionl zone 1 Confirm ording to the hydruli onfigurtion whih spe heting loops n e losed due to mehnil, eletroni, or other vlves. Dikin Altherm Low temperture split Instller referene guide 59

60 9 Commissioning 2 Close ll spe heting loops tht n e losed (see previous step). 3 Strt the pump test run opertion (see "9.4.4 To perform n tutor test run" on pge 61). 4 Go to [6.1.8]: > Informtion > Sensor informtion > Flow rte to hek the flow rte. During pump test run opertion, the unit n operte elow this minimum required flow rte tht is needed during defrost/kup heter opertion. Yes Modify the ypss vlve setting to reh the minimum required flow rte + 2 l/min Bypss vlve foreseen? No Reommended proedure for the min zone In se the tul flow rte is elow the minimum flow rte (required during defrost/kup heter opertion), modifitions t hydruli onfigurtion re required. Inrese the spe heting loops tht n NOT e losed or instll pressure ontrolled ypss vlve. 5 Confirm ording to the hydruli onfigurtion whih spe heting loops n e losed due to mehnil, eletroni, or other vlves. 6 Close ll spe heting loops tht n e losed (see previous step). 7 Crete thermo request on the min zone only. 8 Wit 1 minute until the unit is stilized. 9 If the dditionl pump is still ssisting (the green LED on the right hnd sided pump is ON), inrese the flow until the dditionl pump is NOT ssisting nymore (LED is OFF). 10 Go to [6.1.8]: > Informtion > Sensor informtion > Flow rte to hek the flow rte. Yes Modify the ypss vlve setting to reh the minimum required flow rte + 2 l/min Bypss vlve foreseen? No In se the tul flow rte is elow the minimum flow rte (required during defrost/kup heter opertion), modifitions t hydruli onfigurtion re required. Inrese the spe heting loops tht n NOT e losed or instll pressure ontrolled ypss vlve. Minimum required flow rte during defrost/kup heter opertion models 12 l/min 16 model 15 l/min Air purge funtion When ommissioning nd instlling the unit, it is very importnt to remove ll ir in the wter iruit. When the ir purge funtion is running, the pumps operte without tul opertion of the unit nd the removl of ir in the wter iruit will strt. Before strting the ir purge, open the sfety vlve nd hek if the iruit is suffiiently filled with wter. Only if wter espes the vlve fter opening it, you n strt the ir purge proedure. There re 2 modes for purging ir: Mnully: the unit will operte with ustom pump speed nd in ustom position of the 3-wy vlve (spe heting/domesti hot wter). The ustom position of the 3-wy vlve is helpful feture to remove ll ir from the wter iruit in the spe heting or the domesti hot wter heting mode. The opertion speed of the pump (slow or quik) n lso e set. Automti: the unit utomtilly hnges the pump speed nd the position of the 3-wy vlve (spe heting/domesti hot wter) etween the spe heting or the domesti hot wter heting mode. For oth mnul nd utomti ir purge, 1 temperture zone is purged with eh ir purge strt. To purge the other temperture zone, you hve to restrt the ir purge funtion. When performing n ir purge for the first time, the min temperture zone will e purged. Typil workflow Purging the ir from the system should onsist of: 1 Performing mnul ir purge for oth zones 2 Performing n utomti ir purge for oth zones Strt y performing mnul ir purge on oth zones. When lmost ll the ir is removed, perform n utomti ir purge on oth zones. If neessry, repet performing the utomti ir purge until you re sure tht ll ir is removed from the system. During ir purge funtion, pump speed limittion [9 0D] is NOT pplile. Mke sure the user interfe shows the home sreens nd tht the spe heting nd domesti hot wter demnds re turned off. To perform mnul ir purge When purging the min zone, mke sure the setpoint for the min zone is t lest 5 C higher thn the tul wter temperture inside the unit. Prerequisite: Mke sure the user interfe shows the home sreens nd tht the spe heting nd domesti hot wter demnds re turned off. 1 Set the user permission level to Instller. See "To set the user permission level to Instller" on pge Set the ir purge mode: go to [A.7.3.1] > Instller settings > Commissioning > Air purge > Type. 3 Selet Mnul nd press. 4 Go to [A.7.3.4] > Instller settings > Commissioning > Air purge > Strt ir purge nd press to strt the ir purge funtion. Result: The mnul ir purge strts nd the following sreen ppers. Air purge Flow rte Speed Ciruit 0.5 l/min Low SHC Stop Adjust Sroll Tue 01:18 5 Use the nd uttons to sroll to Speed. 6 Use the nd uttons to set the desired pump speed. Result: Low Result: High Instller referene guide 60 Dikin Altherm Low temperture split

61 9 Commissioning 7 If pplile, set the desired position of the 3-wy vlve (spe heting/domesti hot wter). Use the nd uttons to sroll to Ciruit. 8 Use the nd uttons to set the desired position of the 3-wy vlve (spe heting/domesti hot wter). Result: SHC Result: Tnk To perform n utomti ir purge When purging the min zone, mke sure the setpoint for the min zone is t lest 5 C higher thn the tul wter temperture inside the unit. Prerequisite: Mke sure the user interfe shows the home sreens nd tht the spe heting nd domesti hot wter demnds re turned off. 1 Set the user permission level to Instller. See "To set the user permission level to Instller" on pge Set the ir purge mode: go to [A.7.3.1] > Instller settings > Commissioning > Air purge > Type. 3 Selet Automti nd press. 4 Go to [A.7.3.4] > Instller settings > Commissioning > Air purge > Strt ir purge nd press to strt the ir purge funtion. Result: Air purging will strt nd the following sreen will e shown. Air purge Flow rte Speed Ciruit 0.5 l/min Low SHC Stop Adjust Sroll Tue 01:18 The utomti ir purge funtion stops utomtilly fter 30 minutes, then the instller hs to restrt the utomti ir purge funtion for the seond temperture zone. This funtion will lso stop utomtilly fter 30 minutes To interrupt ir purge 1 Press nd press to onfirm the interruption of the ir purge funtion. When you restrt the ir purge funtion, the other zone will e ir purged To perform test run The test run only pplies to the dditionl temperture zone. Prerequisite: Mke sure the user interfe shows the home sreens nd tht the spe heting nd domesti hot wter demnds re turned off. 1 Set the user permission level to Instller. See "To set the user permission level to Instller" on pge Go to [A.7.1]: > Instller settings > Commissioning > Test run. 3 Selet test nd press. Exmple: Heting. 4 Selet OK nd press. Result: The test run strts. It stops utomtilly when done (±30 min). To stop it mnully, press, selet OK nd press. If 2 user interfes re present, you n strt test run from oth user interfes. The user interfe used to strt the test run displys sttus sreen. The other user interfe displys "usy" sreen. You nnot use the user interfe s long s the "usy" sreen is shown. If the instlltion of the unit hs een done orretly, the unit will strt up during test opertion. During the test mode, the orret opertion of the unit n e heked y monitoring leving wter temperture (heting mode) nd tnk temperture (domesti hot wter mode). To monitor the temperture, go to [A.6] nd selet the informtion you wnt to hek To perform n tutor test run Purpose of the tutor test run is to onfirm the opertion of the different tutors (e.g., when you selet pump opertion, test run of the pump will strt). Prerequisite: Mke sure the user interfe shows the home sreens nd tht the spe heting nd domesti hot wter demnds re turned off. 1 Set the user permission level to Instller. See "To set the user permission level to Instller" on pge Mke sure the room temperture ontrol, the leving wter temperture ontrol nd the domesti hot wter ontrol re turned OFF vi the user interfe. 3 Go to [A.7.4]: > Instller settings > Commissioning > Atutor test run. 4 Selet n tutor nd press. Exmple: Pump. 5 Selet OK nd press. Result: The tutor test run strts. It utomtilly stops when finished. To stop it mnully, press, selet OK nd press. Possile tutor test runs Bkup heter (step 1) test Pump test (only the pump of the dditionl temperture zone) Mke sure tht ll ir is purged efore exeuting the test run. Also void disturnes in the wter iruit during the test run. 2-wy vlve test 3-wy vlve test (3-wy vlve for swithing etween spe heting nd tnk heting) Bottom plte heter test Bivlent signl test Alrm output test Heting signl test Quik het-up test Cirultion pump test Underfloor heting sreed dryout This funtion is used for drying out the sreed of n underfloor heting system very slowly during the onstrution of house. It llows the instller to progrm nd exeute this progrm. Mke sure the user interfe shows the home sreens nd tht the spe heting nd domesti hot wter demnds re turned off. Dikin Altherm Low temperture split Instller referene guide 61

62 9 Commissioning This funtion n e exeuted without finishing the outdoor instlltion. In this se, the kup heter will perform the sreed dryout nd supply the leving wter without het pump opertion. When no outdoor unit is instlled yet, then onnet the min power supply le to the indoor unit vi X2M/30 nd X2M/31. See "7.9.7 To onnet the min power supply" on pge 35. If Emergeny is set to Mnul ([A.5.1.2]=0), nd the unit is triggered to strt emergeny opertion, the user interfe will sk onfirmtion efore strting. The underfloor heting sreed dryout funtion is tive even if the user does NOT onfirm emergeny opertion. During underfloor heting sreed dryout, pump speed limittion [9 0D] is NOT pplile. The instller is responsile for: ontting the sreed mnufturer for the initil heting instrutions to void rking the sreed, progrmming the underfloor heting sreed dryout shedule ording to the ove instrution of the sreed mnufturer, heking the proper funtioning of the setup on regulr sis, seleting the orret progrm omplying with the type of the used sreed of the floor. To perform n underfloor heting sreed dryout, room frost protetion needs to e disled ([2 06]=0). By defult, it is enled ([2 06]=1). However, due to the "instller-on-site" mode (see "Cheklist efore ommissioning"), room frost protetion will e utomtilly disled for 12 hours fter the first power-on. If the sreed dryout still needs to e performed fter the first 12 hours of power-on, mnully disle room frost protetion y setting [2 06] to "0", nd KEEP it disled until the sreed dryout hs finished. Ignoring this notie will result in rking of the sreed. For the underfloor heting sreed dryout to e le to strt, mke sure the following settings re met: [4 00] = 1 [C 02] = 0 [D 01] = 0 [4 08] = 0 [4 01] 1 The instller n progrm up to 20 steps. For eh step he needs to enter: 1 the durtion in hours, up to 72 hours, 2 the desired leving wter temperture. Exmple: T 24h (1) 36h (2) 25 C (1) 35 C (2) A1 T Desired leving wter temperture (15~55 C) t Durtion (1~72 h) (1) Ation step 1 (2) Ation step 2 To progrm n underfloor heting sreed dryout shedule 1 Set the user permission level to Instller. See "To set the user permission level to Instller" on pge Go to [A.7.2]: > Instller settings > Commissioning > UFH sreed dryout > Set dryout shedule. 3 Use the,,, nd to progrm the shedule. Use nd to sroll through the shedule. Use nd to djust the seletion. If time is seleted, you n set the durtion etween 1 nd 72 hours. If temperture is seleted, you n set the desired leving wter temperture etween 15 C nd 55 C. 4 To dd new step, selet " h" or " " on n empty line nd press. 5 To delete step, set the durtion to " " y pressing. 6 Press to sve the shedule. It is importnt tht there is no empty step in the progrm. The shedule will stop when lnk step is progrmmed OR when 20 onseutive steps hve een exeuted. To perform n underfloor heting sreed dryout Preferentil kwh rte power supply nnot e used in omintion with underfloor heting sreed dryout. Prerequisite: Mke sure there is ONLY 1 user interfe onneted to your system to perform n underfloor heting sreed dryout. Prerequisite: Mke sure the user interfe shows the home sreens nd tht the spe heting nd domesti hot wter demnds re turned off. 1 Go to [A.7.2]: > Instller settings > Commissioning > UFH sreed dryout. 2 Set dryout progrm. 3 Selet Strt dryout nd press. 4 Selet OK nd press. Result: The underfloor heting sreed dryout strts nd following sreen will e shown. It stops utomtilly when done. To stop it mnully, press, selet OK nd press. Sreed dryout Current step Remining Desired LWT 1 14d 12h 25 C Tue 15:10 t Stop Instller referene guide 62 Dikin Altherm Low temperture split

63 10 Hnd-over to the user To redout the sttus of n underfloor heting sreed dryout 1 Press. 2 The urrent step of the progrm, the totl remining time, nd the urrent desired leving wter temperture will e displyed. There is limited ess to the menu struture. Only the following menus n e essed: Informtion. Instller settings > Commissioning > UFH sreed dryout. To interrupt n underfloor heting sreed dryout When the progrm is stopped y n error, n opertion swith off, or power filure, the U3 error will e displyed on the user interfe. To resolve the error odes, see "12.4 Solving prolems sed on error odes" on pge 67. To reset the U3 error, your User permission level needs to e Instller. 1 Go to the underfloor heting sreed dryout sreen. 2 Press. 3 Press to interrupt the progrm. 4 Selet OK nd press. Result: The underfloor heting sreed dryout progrm is stopped. When the progrm is stopped due to n error, n opertion swithoff, or power filure, you n red out the underfloor heting sreed dryout sttus. 5 Go to [A.7.2]: > Instller settings > Commissioning > UFH sreed dryout > Dryout sttus > Stopped t nd followed y the lst exeuted step. 6 Modify nd restrt the exeution of the progrm. 10 Hnd-over to the user One the test run is finished nd the unit opertes properly, plese mke sure the following is ler for the user: Fill in the instller setting tle (in the opertion mnul) with the tul settings. Mke sure tht the user hs the printed doumenttion nd sk him/her to keep it for future referene. Inform the user tht he n find the omplete doumenttion on the url s erlier desried in this mnul. Explin the user how to properly operte the system nd wht to do in se of prolems. Show the user wht to do in reltion to mintining the unit. Explin the user out energy sving tips s desried in the opertion mnul. 11 Mintenne nd servie Mintenne should preferly e rried out yerly y n instller or servie gent Overview: Mintenne nd servie This hpter ontins informtion out: The yerly mintenne of the outdoor unit The yerly mintenne of the indoor unit 11.2 Mintenne sfety preutions DANGER: RISK OF ELECTROCUTION DANGER: RISK OF BURNING : Risk of eletrostti dishrge Before performing ny mintenne or servie work, touh metl prt of the unit in order to eliminte stti eletriity nd to protet the PCB Opening the indoor unit CAUTION The front pnel is hevy. Be reful NOT to jm your fingers when opening or losing the unit. You just need to remove the front pnel of the unit to gin ess to most prts whih need mintenne. In rre ses, you my lso need to remove the swith ox Cheklist for yerly mintenne of the outdoor unit Chek the following t lest one yer: Outdoor unit het exhnger. The het exhnger of the outdoor unit n get loked up due to dust, dirt, leves, et. It is reommended to len the het exhnger yerly. A loked het exhnger n led to too low pressure or too high pressure leding to worse performne Cheklist for yerly mintenne of the indoor unit Chek the following t lest one yer: Wter pressure Wter filters Wter pressure relief vlve Relief vlve hose Pressure relief vlve of the domesti hot wter tnk Swith ox Desling Chemil disinfetion Anode Wter pressure Chek whether the wter pressure is ove 1 r. If it is lower, dd wter. Wter filters Clen the wter filters. Dikin Altherm Low temperture split Instller referene guide 63

64 12 Trouleshooting Hndle the wter filters with re. Do NOT use exessive fore when you reinsert the wter filters so s NOT to dmge the wter filters mesh. Instller referene guide Wter pressure relief vlve 4 5 Open the vlve nd hek if it opertes orretly. The wter my e very hot! Chekpoints re: The wter flow oming from the relief vlve is high enough, no lokge of the vlve or in etween piping is suspeted. Dirty wter oming out of the relief vlve: open the vlve until the dishrged wter does NOT ontin dirt nymore flush the system nd instll n dditionl wter filter ( mgneti ylone filter is preferle). To mke sure this wter origintes from the tnk, hek fter tnk het up yle. It is reommended to do this mintenne more frequently. Pressure relief vlve hose Chek whether the pressure relief vlve hose is positioned ppropritely to drin the wter. See "7.8.5 To onnet the pressure relief vlve to the drin" on pge 32. Relief vlve of the domesti hot wter tnk (field supply) Open the vlve nd hek the orret opertion. Wter my e very hot! Chekpoints re: The wter flow oming from the relief vlve is high enough, no lokge of the vlve or in etween piping is suspeted. Dirty wter oming out of the relief vlve: open the vlve until the dishrged wter does not ontin dirt nymore flush nd len the omplete tnk, inluding the piping etween the relief vlve nd old wter inlet. To mke sure this wter origintes from the tnk, hek fter tnk het up yle. It is reommended to do this mintenne more frequently. Swith ox Crry out thorough visul inspetion of the swith ox nd look for ovious defets suh s loose onnetions or defetive wiring. Using n ohmmeter, hek if onttors K1M, K2M nd K3M operte orretly. All ontts of these onttors must e in open position when the power is turned OFF. WARNING If the internl wiring is dmged, it hs to e repled y the mnufturer, its servie gent or similrly qulified persons. Desling Depending on wter qulity nd set temperture, sle n deposit on the het exhnger inside the domesti hot wter tnk nd n restrit het trnsfer. For this reson, desling of the het exhnger my e required t ertin intervls. Chemil disinfetion If the pplile legisltion requires hemil disinfetion in speifi situtions, involving the domesti hot wter tnk, plese e wre tht the domesti hot wter tnk is stinless steel ylinder ontining n luminium node. We reommend to use nonhloride sed disinfetnt pproved for use with wter intended for humn onsumption. Anode When using mens for desling or hemil disinfetion, it must e ensured tht the wter qulity remins omplint with EU diretive 98/83 EC. No mintenne or replement required To drin the domesti hot wter tnk Prerequisite: Swith OFF the power supply. Prerequisite: Turn OFF the old wter supply. 1 Open the front pnel. 2 Remove the 2 srews, unhook nd put the swith ox side. 2 3 The drin hose is loted t the right side of the unit. Cut the tie wrps or tpe nd ring the flexile drin hose forwrd. Drin hose To drin the tnk, ll the hot wter tpping points need to e opened to llow ir to enter the system. 4 Open the drin vlve. 12 Trouleshooting 12.1 Overview: Trouleshooting This hpter desries wht you hve to do in se of prolems. It ontins informtion out: Solving prolems sed on symptoms Solving prolems sed on error odes Dikin Altherm Low temperture split

65 12 Trouleshooting Before trouleshooting Crry out thorough visul inspetion of the unit nd look for ovious defets suh s loose onnetions or defetive wiring Preutions when trouleshooting WARNING When rrying out n inspetion on the swith ox of the unit, lwys mke sure tht the unit is disonneted from the mins. Turn off the respetive iruit reker. When sfety devie ws tivted, stop the unit nd find out why the sfety devie ws tivted efore resetting it. NEVER ridge sfety devies or hnge their vlues to vlue other thn the ftory defult setting. If you re unle to find the use of the prolem, ll your deler. DANGER: RISK OF ELECTROCUTION WARNING Prevent hzrd due to the indvertent resetting of the therml ut-out: this ppline must NOT e supplied through n externl swithing devie, suh s timer, or onneted to iruit tht is regulrly turned ON nd OFF y the utility. DANGER: RISK OF BURNING 12.3 Solving prolems sed on symptoms Symptom: The unit is NOT heting s expeted Possile uses The temperture setting is NOT orret The wter flow is too low Corretive tion Chek the temperture setting on the remote ontroller. Refer to the opertion mnul. Chek nd mke sure tht: All shut-off vlves of the wter iruit re ompletely open. The wter filters re len. Clen if neessry. There is no ir in the system. Purge ir if neessry. You n purge ir mnully (see "To perform mnul ir purge" on pge 60) or use the utomti ir purge funtion (see "To perform n utomti ir purge" on pge 61). The wter pressure is >1 r. The expnsion vessel is NOT roken. The resistne in the wter iruit is NOT too high for the pump (see "14.9 ESP urve" on pge 95). If the prolem persists fter you hve onduted ll of the ove heks, ontt your deler. In some ses, it is norml tht the unit deides to use low wter flow. Possile uses The wter volume in the instlltion is too low Corretive tion Mke sure tht the wter volume in the instlltion is ove the minimum required vlue (see "6.4.3 To hek the wter volume nd flow rte" on pge 19) Symptom: The ompressor does NOT strt (spe heting or domesti wter heting) Possile uses The unit must strt up out of its opertion rnge (the wter temperture is too low) The preferentil kwh rte power supply settings nd eletril onnetions do NOT mth The preferentil kwh rte signl ws sent y the eletriity ompny Corretive tion If the wter temperture is too low, the unit uses the kup heter to reh the minimum wter temperture first (15 C). Chek nd mke sure tht: The power supply to the kup heter is orretly wired. The kup heter therml protetor is NOT tivted. The kup heter onttor is NOT roken. If the prolem persists fter you hve onduted ll of the ove heks, ontt your deler. This should mth with the onnetions s explined in "6.5 Prepring eletril wiring" on pge 20 nd "7.9.7 To onnet the min power supply" on pge 35. Wit for the power to return (2 hours mx.) Symptom: The pump is mking noise (vittion) Possile uses There is ir in the system The wter pressure t the pump inlet is too low Corretive tion Purge ir mnully on oth zones (see "To perform mnul ir purge" on pge 60) or use the utomti ir purge funtion on oth zones (see "To perform n utomti ir purge" on pge 61). Chek nd mke sure tht: The wter pressure is >1 r. The mnometer is not roken. The expnsion vessel is NOT roken. The pre-pressure setting of the expnsion vessel is orret (see "6.4.4 Chnging the prepressure of the expnsion vessel" on pge 20) Symptom: The pressure relief vlve opens Possile uses The expnsion vessel is roken Corretive tion Reple the expnsion vessel. Dikin Altherm Low temperture split Instller referene guide 65

66 12 Trouleshooting Possile uses The wter volume in the instlltion is too high Corretive tion Mke sure tht the wter volume in the instlltion is elow the mximum llowed vlue (see "6.4.3 To hek the wter volume" on pge 19 nd "6.4.4 Chnging the pre-pressure of the expnsion vessel" on pge 20). The wter iruit hed is too high The wter iruit hed is the differene in height etween the indoor unit nd the highest point of the wter iruit. If the indoor unit is loted t the highest point of the instlltion, the instlltion height is onsidered 0 m. The mximum wter iruit hed is 10 m. Chek the instlltion requirements Symptom: The wter pressure relief vlve leks Possile uses Dirt is loking the wter pressure relief vlve outlet Corretive tion Chek whether the pressure relief vlve works orretly y turning the red kno on the vlve ounterlokwise: If you do NOT her lking sound, ontt your deler. If the wter keeps running out of the unit, lose oth the wter inlet nd outlet shut-off vlves first nd then ontt your deler Symptom: The spe is NOT suffiiently heted t low outdoor tempertures Possile uses The kup heter opertion is not tivted Corretive tion Chek nd mke sure tht: The kup heter opertion mode is enled. Go to: [A.5.1.1] > Instller settings > Het soures > Bkup heter > Opertion mode [4 00] The therml protetor of the kup heter hs not een tivted. If it hs, hek: The wter pressure Whether there is ir in the system The ir purge opertion Press the reset utton in the swith ox. See "14.4 Components" on pge 74 for the lotion of the reset utton. Possile uses The kup heter equilirium temperture hs not een onfigured orretly Too muh het pump pity is used for heting domesti hot wter Corretive tion Inrese the "equilirium temperture" to tivte the kup heter opertion t higher outdoor temperture. Go to: [A.5.1.4] > Instller settings > Het soures > Bkup heter > Equilirium temp. OR [A.8] > Instller settings > Overview settings [5 01] Chek nd mke sure tht the spe heting priority settings hve een onfigured ppropritely: Mke sure tht the "spe heting priority sttus" hs een enled. Go to [A.8] > Instller settings > Overview settings [5 02] Inrese the "spe heting priority temperture" to tivte kup heter opertion t higher outdoor temperture. Go to [A.8] > Instller settings > Overview settings [5 03] Symptom: The pressure t the tpping point is temporrily unusul high Possile uses Filing or loked pressure relief vlve. Corretive tion Flush nd len the omplete tnk inluding the piping etween pressure relief vlve nd the old wter inlet. Reple the pressure relief vlve Symptom: Deortion pnels re pushed wy due to swollen tnk Possile uses Filing or loked pressure relief vlve. Corretive tion Contt your lol deler Symptom: Tnk disinfetion funtion is NOT ompleted orretly (AH-error) Possile uses Corretive tion The disinfetion funtion ws interrupted y domesti hot wter tpping Progrm the strt-up of the disinfetion funtion when the oming 4 hours NO domesti hot wter tpping is expeted. Instller referene guide 66 Dikin Altherm Low temperture split

67 12 Trouleshooting Possile uses Lrge domesti hot wter tpping hppened reently efore the progrmmed strt-up of the disinfetion funtion The disinfetion opertion ws stopped mnully: with the user interfe displying the DHW home pge nd its user permission level set to Instller, the utton ws pressed during disinfetion opertion. Dikin Altherm Low temperture split Corretive tion When the Domesti hot wter > Type > Rehet or Rehet + shed. is seleted, it is reommended to progrm the strt-up the disinfetion funtion t lest 4 hours lter thn the lst expeted lrge hot wter tpping. This strt-up n e set y instller settings (disinfetion funtion). When the Domesti hot wter > Type > Sheduled only is seleted, it is reommended to progrm Storge eo 3 hours efore the sheduled strt-up of the disinfetion funtion to prehet the tnk. Do NOT press the utton while the disinfetion funtion is tive Solving prolems sed on error odes When prolem hppens, n error ode ppers on the user interfe. It is importnt to understnd the prolem nd to tke ountermesure efore resetting the error ode. This should e done y liensed instller or y your lol deler. This hpter gives you n overview of ll error odes nd the ontent of the error ode s it ppers on the user interfe. For more detiled trouleshooting guideline for eh error, plese see the servie mnul Error odes: Overview Error odes of the outdoor unit Error ode Detiled error ode Desription A5 00 OU: High pressure ooling/pek ut/ freeze protetion prolem. Plese ontt your deler. E1 00 OU: PCB defet. Power reset required. Plese ontt your deler. E3 00 OU: Atution of high pressure swith (HPS). Plese ontt your deler. E5 00 OU: Overhet of inverter ompressor motor. Plese ontt your deler. E6 00 OU: Compressor strtup defet. Plese ontt your deler. E7 00 OU: Mlfuntion of outdoor unit fn motor. Plese ontt your deler. Error ode Detiled error ode Desription E8 00 OU: Power input overvoltge. Plese ontt your deler. EA 00 OU: Cool/het swithover prolem. Plese ontt your deler. H0 00 OU: Voltge/urrent sensor prolem. Plese ontt your deler. H3 00 OU: Mlfuntion of high pressure swith (HPS) Plese ontt your deler. H6 00 OU: Mlfuntion of position detetion sensor. Plese ontt your deler. H8 00 OU: Mlfuntion of ompressor input (CT) system. Plese ontt your deler. H9 00 OU: Mlfuntion of outdoor ir thermistor. Plese ontt your deler. F3 00 OU: Mlfuntion of dishrge pipe temperture. Plese ontt your deler. F6 00 OU: Anorml high pressure in ooling. Plese ontt your deler. FA 00 OU: Anorml high pressure, tution of HPS. Plese ontt your deler. JA 00 OU: Mlfuntion of high pressure sensor. Plese ontt your deler. J3 00 OU: Mlfuntion of dishrge pipe thermistor. Plese ontt your deler. J6 00 OU: Mlfuntion of het exhnger thermistor. Plese ontt your deler. L3 00 OU: Eletril ox temperture rise prolem. Plese ontt your deler. L4 00 OU: Mlfuntion of inverter rditing fin temperture rise. Plese ontt your deler. L5 00 OU: Inverter instntneous overurrent (DC). Plese ontt your deler. Instller referene guide 67

68 12 Trouleshooting Error ode Detiled error ode Desription P4 00 OU: Mlfuntion of rditing fin temperture sensor. Plese ontt your deler. U0 00 OU: Shortge of refrigernt. Plese ontt your deler. Error ode Detiled error ode Desription Het exhnger frozen. 8H 00 Anorml inrese outlet wter temperture. U2 00 OU: Defet of power supply voltge. Plese ontt your deler. U7 00 OU: Trnsmission mlfuntion etween min CPU- INV CPU. Plese ontt your deler. UA 00 OU: Indoor/outdoor omintion prolem. Error odes of the indoor unit Error ode Detiled error ode Power reset required. Desription A1 00 Zero ross detetion prolem. Power reset required. Plese ontt your deler. AA 01 Bkup heter overheted. Power reset required. Plese ontt your deler. UA 00 Indoor unit, outdoor unit mthing prolem. Power reset required. 7H 01 Wter flow prolem. Auto restrt. 7H 04 Wter flow prolem during domesti hot wter prodution. Mnul reset. Chek the domesti hot wter iruit. 7H 05 Wter flow prolem during heting/smpling. Mnul reset. Chek the spe heting iruit. 7H 06 Wter flow prolem during defrost. Mnul reset. Chek the plte het exhnger Mixed wter thermistor normlity. Auto reset. 1 8H 01 Overheting mixed wter iruit. Auto reset. 1 8H 02 Overheting mixed wter iruit (thermostt). Auto reset. 1 8F 00 Anorml inrese outlet wter temperture (DHW). C0 00 Flow sensor mlfuntion. Mnul reset. U3 00 Under floor heting sreed dryout funtion not ompleted orretly Leving wter temperture sensor prolem. Plese ontt your deler. C4 00 Het exhnger temperture sensor prolem. Plese ontt your deler Returning wter temperture sensor prolem. Plese ontt your deler. U5 00 User interfe ommunition prolem. U4 00 Indoor/outdoor unit ommunition prolem. EC 00 Anorml inrese tnk temperture. HC 00 Tnk temperture sensor prolem. Plese ontt your deler. CJ 02 Room temperture sensor prolem. Plese ontt your deler. H1 00 Externl temperture sensor prolem. Plese ontt your deler. 1 On the home sreen of your user inter interfe, the following informtion will e displyed: Bi-zone kit normlity detetion Refer to i-zone kit mnul Instller referene guide 68 Dikin Altherm Low temperture split

69 13 Disposl Error ode Detiled error ode Desription Het exhnger frozen. A1 01 EEPROM reding error. AH 00 Tnk disinfetion funtion not ompleted orretly Het exhnger frozen. AJ 03 Too long DHW het-up time required. UA 16 Extension/hydro ommunition prolem. UA 17 Tnk type prolem If the 7H error persists, the unit will stop opertion nd the user interfe will disply n error ode tht needs to e reset mnully. Depending on the prolem, this error ode is different: Error ode Detiled error ode Desription 7H 04 The wter flow prolems minly ourred during domesti hot wter opertion. Chek the domesti hot wter iruit. 7H 05 The wter flow prolems minly ourred during spe heting opertion. Chek the spe heting iruit. 7H 06 The wter flow prolems minly ourred during defrost opertion. Chek the spe heting iruit. Additionlly, this error ode might e n indition of frost dmge to the plte het exhnger. In tht se, ontt your lol deler. Error AJ-03 is reset utomtilly from the moment there is norml tnk het-up. UA 21 Extension/hydro Dikin Altherm Low temperture split mismth prolem. In se of error ode AH nd no interruption of the disinfetion funtion ourred due to domesti hot wter tpping, following tions re reommended: When the Domesti hot wter > Type > Rehet or Rehet + shed. is seleted, it is reommended to progrm the strt-up of the disinfetion funtion t lest 4 hours lter thn the lst expeted lrge hot wter tpping. This strt-up n e set y instller settings (disinfetion funtion). When the Domesti hot wter > Type > Sheduled only is seleted, it is reommended to progrm Storge eo 3 hours efore the sheduled strt-up of the disinfetion funtion to prehet the tnk. When the minimum wter flow is lower thn desried in the tle elow, the unit will temporrily stop opertion nd the user interfe will disply error 7H 01. After some time, this error will reset utomtilly nd the unit will resume opertion. Minimum required flow during het pump opertion 04 models 6 l/min 08 models 6 l/min 16 models 10 l/min Minimum required flow during defrost opertion models 12 l/min 16 models 15 l/min Minimum required flow during kup heter opertion All models 12 l/min If the unit detets flow when the pump is not running, n externl devie might e using flow, or there might e something wrong with the flow mesuring devies (flow sensor). If the flow sensor detets flow when the pump is not running, the unit will stop opertion nd the user interfe will disply error C0 00. For the unit to resume opertion, this error needs to e reset mnully. 13 Disposl 13.1 Overview: Disposl Typil workflow Disposing of the system typilly onsists of the following stges: 1 Pumping down the system. 2 Dismntling the system ording to the pplile legisltion. 3 Treting the refrigernt, oil nd other prts ording to the pplile legisltion. For more detils, see the servie mnul To pump down Exmple: To protet the environment, pump down when reloting the unit or when disposing of the unit. During pump down opertion, stop the ompressor efore removing the refrigernt piping. If the ompressor is still running nd the stop vlve is open during pump down, ir will e suked into the system. Compressor rekge nd other injury will e the result due to norml pressure in the refrigernt yle. Instller referene guide 69

70 CEASW1HOOL13 Disposl Pump down opertion will extrt ll refrigernt from the system into the outdoor unit. 1 Remove the vlve lid from liquid stop vlve nd gs stop vlve. 2 Crry out the fored ooling opertion. 3 After 5 to 10 minutes (fter only 1 or 2 minutes in se of very low mient tempertures (< 10 C)), lose the liquid stop vlve with hexgonl wrenh. 4 Chek with the mnifold if the vuum is rehed. 5 After 2-3 minutes, lose the gs stop vlve nd stop fored ooling opertion. e d e d d Gs stop vlve Closing diretion Hexgonl wrenh Vlve lid Liquid stop vlve 13.3 To strt nd stop fored ooling Confirm tht DIP swith SW2 is in COOL mode. 1 Press the fored ooling opertion swith SW1 to egin fored ooling. 2 Press the fored ooling opertion swith SW1 to stop fored ooling. TSW2 Tke re tht while running fored ooling opertion, the wter temperture remins higher thn 5 C (see temperture red out of the indoor unit). You n hieve this, for exmple, y tivting ll fns of the fn oil units. Instller referene guide 70 Dikin Altherm Low temperture split

71 14 Tehnil dt 14 Tehnil dt 14.1 Overview: Tehnil dt This hpter ontins informtion out: Dimensions nd servie spe Centre of grvity Components Piping digrm Wiring digrm Tehnil speifitions Opertion rnge ESP urve 14.2 Dimensions nd servie spe Dimensions nd servie spe: Outdoor unit 250 MINIMUM SPACE FOR AIR PASSAGE WALL HEIGHT ON AIR OUTLET SIDE = LESS THAN DRAIN OUTLET HOLES FOR ANCHOR BOLTS (M8 OR M10) IN CASE OF REMOVING STOP VALVE COVER BRAND NAME LABEL NAME PLATE WIRING INLET TERMINAL STRIP WITH EARTH TERMINAL OUTDOOR AIR TEMPERATURE THERMISTOR LIQUID STOP VALVE (Ø6.4 CuT) SERVICE PORT GAS STOP VALVE (Ø15.9 CuT) 3TW B Dikin Altherm Low temperture split Instller referene guide 71

72 14 Tehnil dt Dimensions nd servie spe: Indoor unit Dimensions: Indoor unit A A R210 3D A <10 mm <10 mm <300 mm Servie spe: Indoor unit <500 mm 3D Instller referene guide 72 Dikin Altherm Low temperture split

73 14 Tehnil dt 14.3 Center of grvity Center of grvity: Outdoor unit UNIT 4TW Dikin Altherm Low temperture split Instller referene guide 73

74 14 Tehnil dt 14.4 Components Components: Outdoor unit l k l Het exhnger Components: Swith ox (outdoor unit) d e f d g h e i j d e f g h i j k Swith ox min PCB (inverter nd ontrol PCB) Terminl ommunition nd power supply Servie PCB 4-wy vlve Eletroni expnsion vlve (min) Aumultor Compressor Liquid stop vlve Gs stop vlve Servie port Fn motor d e Servie PCB Terminl ommunition le Terminl power supply le Erth onnetion Wire lmp Components: Indoor unit h j g i m s r n n l p k f y d w v x t z u n o p q r s t u v w x y z Power supply wiring intke Ø24 mm Levelling feet User interfe (optionl) Drin vlve domesti hot wter tnk iruit Reirultion onnetion G 1/2" (femle) Hole for the reirultion piping or options wiring Ø35 mm Drin outlet (unit+sfety vlve) Expnsion vessel 3-wy vlve (spe heting/domesti hot wter) 3-wy vlve (mixing vlve for the min zone) Wter filter (dditionl/diret zone) Wter filter (min/mixed zone) Pump (dditionl/diret zone) Pump (min/mixed zone) Shut-off vlve Shut-off vlve with fill vlve (inluded essory) The dditionl zone is the temperture zone with the highest temperture. The min zone is the temperture with the lowest temperture. e q o o o 3D A d e f g h i j k l m Gs pipe onnetion Ø15.9 mm flre Liquid pipe onnetion Ø6.35 mm flre Pressure guge Sfety vlve Drin vlve wter iruit Air purge Wter IN onnetion (min/mixed zone) 1-1/4" BSP (femle) Wter OUT onnetion (min/mixed zone) 1-1/4" BSP (femle) Wter IN onnetion (dditionl/diret zone) 1-1/4" BSP (femle) Wter OUT onnetion (dditionl/diret zone) 1-1/4" BSP (femle) Domesti hot wter: old wter IN 3/4" F BSP Domesti hot wter: old wter OUT 3/4" F BSP Control wiring intke Ø24 mm Instller referene guide 74 Dikin Altherm Low temperture split