Installer reference guide

Instller referene guide Dikin Altherm Low temperture split + ERLQ004-006-008CA EHBH04+08CBV Instller referene guide Dikin Altherm Low temperture split English

Tle of ontents Tle of ontents 1 Generl sfety preutions 3 1.1 Aout the doumenttion... 3 1.1.1 Mening of wrnings nd symols... 4 1. For the instller... 4 1..1 Generl... 4 1.. Instlltion site... 4 1..3 Refrigernt... 5 1..4 Brine... 5 1..5 Wter... 5 1..6 Eletril... 6 Aout the doumenttion 6.1 Aout this doument... 6. Instller referene guide t glne... 7 3 Aout the ox 7 3.1 Overview: Aout the ox... 7 3. Outdoor unit... 7 3..1 To unpk the outdoor unit... 7 3.. To remove the essories from the outdoor unit... 8 3.3 Indoor unit... 8 3.3.1 To unpk the indoor unit... 8 3.3. To remove the essories from the indoor unit... 8 3.4 Bkup heter... 9 3.4.1 To unpk the kup heter... 9 3.4. To remove the essories from the kup heter... 9 4 Aout the units nd options 9 4.1 Overview: Aout the units nd options... 9 4. Identifition... 9 4..1 Identifition lel: Outdoor unit... 9 4.. Identifition lel: Indoor unit... 10 4..3 Identifition lel: Bkup heter... 10 4.3 Comining units nd options... 10 4.3.1 Possile options for the outdoor unit... 10 4.3. Possile options for the indoor unit... 10 4.3.3 Possile omintions of indoor unit nd outdoor unit... 1 4.3.4 Possile omintions of indoor unit nd domesti hot wter tnk... 1 5 Applition guidelines 1 5.1 Overview: Applition guidelines... 1 5. Setting up the spe heting system... 1 5..1 Single room... 1 5.. Multiple rooms One LWT zone... 14 5..3 Multiple rooms Two LWT zones... 16 5.3 Setting up n uxiliry het soure for spe heting... 17 5.4 Setting up the domesti hot wter tnk... 18 5.4.1 System lyout Stndlone DHW tnk... 18 5.4. Seleting the volume nd desired temperture for the DHW tnk... 18 5.4.3 Setup nd onfigurtion DHW tnk... 19 5.4.4 Comintion: Stndlone DHW tnk + Solr pnels.. 19 5.4.5 DHW pump for instnt hot wter... 19 5.4.6 DHW pump for disinfetion... 19 5.4.7 DHW pump for tnk preheting... 19 5.5 Setting up the energy metering... 0 5.5.1 Produed het... 0 5.5. Consumed energy... 0 5.5.3 Norml kwh rte power supply... 0 5.5.4 Preferentil kwh rte power supply... 1 5.6 Setting up the power onsumption ontrol... 1 5.6.1 Permnent power limittion... 1 5.6. Power limittion tivted y digitl inputs... 5.6.3 Power limittion proess... 5.7 Setting up n externl temperture sensor... 3 6 Preprtion 3 6.1 Overview: Preprtion... 3 6. Prepring instlltion site... 3 6..1 Instlltion site requirements of the outdoor unit... 3 6.. Additionl instlltion site requirements of the outdoor unit in old limtes... 4 6..3 Instlltion site requirements of the indoor unit... 4 6..4 Instlltion site requirements of the kup heter... 5 6.3 Prepring refrigernt piping... 5 6.3.1 Refrigernt piping requirements... 5 6.3. Refrigernt piping insultion... 5 6.4 Prepring wter piping... 6 6.4.1 Wter iruit requirements... 6 6.4. Formul to lulte the expnsion vessel prepressure... 7 6.4.3 To hek the wter volume nd flow rte... 7 6.4.4 Chnging the pre-pressure of the expnsion vessel... 8 6.4.5 To hek the wter volume: Exmples... 8 6.5 Prepring eletril wiring... 8 6.5.1 Aout prepring eletril wiring... 8 6.5. Aout preferentil kwh rte power supply... 8 6.5.3 Overview of eletril onnetions exept externl tutors... 9 6.5.4 Overview of eletril onnetions for externl nd internl tutors... 9 7 Instlltion 30 7.1 Overview: Instlltion... 30 7. Opening the units... 30 7..1 Aout opening the units... 30 7.. To open the outdoor unit... 30 7..3 To open the indoor unit... 30 7..4 To open the swith ox over of the indoor unit... 31 7..5 To open the kup heter... 31 7..6 To open the swith ox over of the kup heter... 31 7.3 Mounting the outdoor unit... 31 7.3.1 Aout mounting the outdoor unit... 31 7.3. Preutions when mounting the outdoor unit... 31 7.3.3 To provide the instlltion struture... 31 7.3.4 To instll the outdoor unit... 3 7.3.5 To provide dringe... 33 7.3.6 To prevent the outdoor unit from flling over... 33 7.4 Mounting the indoor unit... 34 7.4.1 Aout mounting the indoor unit... 34 7.4. Preutions when mounting the indoor unit... 34 7.4.3 To instll the indoor unit... 34 7.4.4 To instll the drin pn kit... 35 7.5 Mounting the kup heter... 35 7.5.1 Preutions when mounting the kup heter... 35 7.5. To instll the kup heter... 35 7.6 Conneting the refrigernt piping... 35 7.6.1 Aout onneting the refrigernt piping... 35 7.6. Preutions when onneting the refrigernt piping... 36 7.6.3 Guidelines when onneting the refrigernt piping... 36 7.6.4 Pipe ending guidelines... 36 7.6.5 To flre the pipe end... 36 7.6.6 To rze the pipe end... 37 7.6.7 Using the stop vlve nd servie port... 37 7.6.8 To onnet the refrigernt piping to the outdoor unit... 37 7.6.9 To onnet the refrigernt piping to the indoor unit... 38 7.7 Cheking the refrigernt piping... 38 7.7.1 Aout heking the refrigernt piping... 38 7.7. Preutions when heking the refrigernt piping... 38 7.7.3 To hek for leks... 38 7.7.4 To perform vuum drying... 38 7.8 Chrging refrigernt... 39 7.8.1 Aout hrging refrigernt... 39 7.8. Preutions when hrging refrigernt... 39 Instller referene guide Dikin Altherm Low temperture split

1 Generl sfety preutions 7.8.3 To determine the dditionl refrigernt mount... 39 7.8.4 To determine the omplete rehrge mount... 39 7.8.5 To hrge refrigernt... 40 7.8.6 To fix the fluorinted greenhouse gses lel... 40 7.9 Conneting the wter piping... 40 7.9.1 Aout onneting the wter piping... 40 7.9. Preutions when onneting the wter piping... 40 7.9.3 To onnet the wter piping... 40 7.9.4 To onnet the wter piping to the kup heter... 41 7.9.5 To fill the wter iruit... 41 7.9.6 To fill the domesti hot wter tnk... 41 7.9.7 To insulte the wter piping... 41 7.10 Conneting the eletril wiring... 41 7.10.1 Aout onneting the eletril wiring... 41 7.10. Aout eletril ompline... 4 7.10.3 Preutions when onneting the eletril wiring... 4 7.10.4 Guidelines when onneting the eletril wiring... 4 7.10.5 To onnet the eletril wiring on the outdoor unit... 4 7.10.6 To onnet the eletril wiring on the indoor unit... 43 7.10.7 To onnet the min power supply... 43 7.10.8 To onnet the user interfe... 44 7.10.9 To onnet the shut-off vlve... 45 7.10.10 To onnet the eletril meters... 45 7.10.11 To onnet the domesti hot wter pump... 45 7.10.1 To onnet the lrm output... 45 7.10.13 To onnet the spe heting ON/OFF output... 45 7.10.14 To onnet the hngeover to externl het soure... 46 7.10.15 To onnet the power onsumption digitl inputs... 46 7.10.16 To onnet the sfety thermostt (norml losed ontt)... 46 7.10.17 To onnet the eletril wiring on the kup heter 46 7.10.18 To onnet the kup heter power supply... 47 7.10.19 To onnet the kup heter to the indoor unit... 48 7.11 Finishing the outdoor unit instlltion... 48 7.11.1 To finish the outdoor unit instlltion... 48 7.11. To lose the outdoor unit... 48 7.1 Finishing the indoor unit instlltion... 48 7.1.1 To fix the user interfe over to the indoor unit... 48 7.1. To lose the indoor unit... 48 7.13 Finishing the kup heter instlltion... 48 7.13.1 To lose the kup heter... 48 8 Configurtion 48 8.1 Overview: Configurtion... 48 8.1.1 To onnet the PC le to the swith ox... 49 8.1. To ess the most used ommnds... 49 8.1.3 To opy the system settings from the first to the seond user interfe... 50 8.1.4 To opy the lnguge set from the first to the seond user interfe... 50 8.1.5 Quik wizrd: Set the system lyout fter first power ON... 50 8. Bsi onfigurtion... 51 8..1 Quik wizrd: Lnguge / time nd dte... 51 8.. Quik wizrd: Stndrd... 51 8..3 Quik wizrd: Options... 53 8..4 Quik wizrd: Cpities (energy metering)... 55 8..5 Spe heting ontrol... 55 8..6 Domesti hot wter ontrol... 58 8..7 Contt/helpdesk numer... 58 8.3 Advned onfigurtion/optimiztion... 59 8.3.1 Spe heting opertion: dvned... 59 8.3. Domesti hot wter ontrol: dvned... 6 8.3.3 Het soure settings... 65 8.3.4 System settings... 67 8.4 Menu struture: Overview user settings... 71 8.5 Menu struture: Overview instller settings... 7 9 Commissioning 73 9.1 Overview: Commissioning... 73 9. Preutions when ommissioning... 73 9.3 Cheklist efore ommissioning... 73 9.4 Cheklist during ommissioning... 73 9.4.1 To hek the minimum flow rte... 74 9.4. Air purge funtion... 74 9.4.3 To perform test run... 75 9.4.4 To perform n tutor test run... 75 9.4.5 Underfloor heting sreed dryout... 75 10 Hnd-over to the user 77 11 Mintenne nd servie 77 11.1 Overview: Mintenne nd servie... 77 11. Mintenne sfety preutions... 77 11..1 Opening the indoor unit... 77 11.. Opening the kup heter... 77 11.3 Cheklist for yerly mintenne of the outdoor unit... 77 11.4 Cheklist for yerly mintenne of the indoor unit... 77 1 Trouleshooting 78 1.1 Overview: Trouleshooting... 78 1. Preutions when trouleshooting... 78 1.3 Solving prolems sed on symptoms... 78 1.3.1 Symptom: The unit is NOT heting s expeted... 78 1.3. Symptom: The ompressor does NOT strt (spe heting or domesti wter heting)... 79 1.3.3 Symptom: The pump is mking noise (vittion)... 79 1.3.4 Symptom: The pressure relief vlve opens... 79 1.3.5 Symptom: The wter pressure relief vlve leks... 79 1.3.6 Symptom: The spe is NOT suffiiently heted t low outdoor tempertures... 80 1.3.7 Symptom: The pressure t the tpping point is temporrily unusully high... 80 1.3.8 Symptom: Deortion pnels re pushed wy due to swollen tnk... 80 1.3.9 Symptom: Tnk disinfetion funtion is NOT ompleted orretly (AH-error)... 80 1.4 Solving prolems sed on error odes... 80 1.4.1 Error odes: Overview... 80 13 Disposl 83 13.1 Overview: Disposl... 83 13. To pump down... 83 13.3 To strt nd stop fored ooling... 84 14 Tehnil dt 85 14.1 Piping digrm: Outdoor unit... 85 14. Piping digrm: Indoor unit... 86 14.3 Wiring digrm: Outdoor unit... 87 14.4 Wiring digrm: Indoor unit... 88 14.5 Wiring digrm: Bkup heter... 91 14.6 ESP urve: Indoor unit... 9 15 Glossry 93 16 Field settings tle 94 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. Dikin Altherm Low temperture split Instller referene guide 3

1 Generl sfety preutions 1.1.1 Mening of wrnings nd symols DANGER Indites sitution tht results in deth or serious injury. 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. DANGER: RISK OF EXPLOSION Indites sitution tht ould result in explosion. WARNING Indites sitution tht ould result in deth or serious injury. WARNING: FLAMMABLE MATERIAL 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. Symol Explntion Before instlltion, red the instlltion nd opertion mnul, nd the wiring instrution sheet. Before performing mintenne nd servie tsks, red the servie mnul. For more informtion, see the instller nd user referene guide. 1. For the instller 1..1 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. CAUTION Do NOT touh the ir inlet or luminium fins of the unit. 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. 1.. 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. Do NOT lok ny ventiltion openings. 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. Instller referene guide 4 Dikin Altherm Low temperture split

1 Generl sfety preutions 1..3 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). 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. DANGER: RISK OF EXPLOSION Pump down Refrigernt lekge. If you wnt to pump down the system, nd there is lekge in the refrigernt iruit: Do NOT use the unit's utomti pump down funtion, with whih you n ollet ll refrigernt from the system into the outdoor unit. Possile onsequene: Self-omustion nd explosion of the ompressor euse of ir going into the operting ompressor. Use seprte reovery system so tht the unit's ompressor does NOT hve to operte. 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 Open refrigernt ylinders slowly. Then Chrge with the ylinder upright. Chrge with the ylinder upside down. 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. 1..4 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. 1..5 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. Dikin Altherm Low temperture split Instller referene guide 5

Aout the doumenttion 1..6 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. 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. Preutions when lying power wiring: 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. 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. 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. Aout the doumenttion.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 6 Dikin Altherm Low temperture split

3 Aout the ox Bkup heter instlltion mnul: Instlltion instrutions Formt: Pper (in the ox of the kup heter) Instller referene guide: Preprtion of the instlltion, good prties, referene dt, Formt: Digitl files on http://www.dikineurope.om/supportnd-mnuls/produt-informtion/ 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 http://www.dikineurope.om/support-nd-mnuls/produtinformtion/ 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. Tehnil engineering dt A suset of the ltest tehnil dt is ville on the regionl Dikin wesite (pulily essile). The full set of ltest tehnil dt is ville on the Dikin extrnet (uthentition required). 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. Outdoor unit 3..1 To unpk the outdoor unit. 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. 1 Dikin Altherm Low temperture split Instller referene guide 7

3 Aout the ox 3.. To remove the essories from the outdoor unit 1 Lift the outdoor unit. CAUTION Only hndle the outdoor unit s follows: 57kg Generl sfety preutions, indoor unit instlltion mnul, opertion mnul nd ddendum ook for optionl equipment Remove the essories t the ottom of the pkge. 1 1 1 d Outdoor unit instlltion mnul Fluorinted greenhouse gses lel Multilingul fluorinted greenhouse gses lel d Unit mounting plte 3.3 Indoor unit Do NOT throw wy the upper rdord over. On the outside of the rdord over, the instlltion pttern is printed. 3.3. To remove the essories from the indoor unit The generl sfety preutions, the indoor unit instlltion mnul, the opertion mnul nd the ddendum ook for optionl equipment re loted in the upper prt of the ox. Follow the proedure elow to remove the other essories. 1 Remove the tpe. 3.3.1 To unpk the indoor unit Tilt the ottom side of the front pnel upwrds nd remove it. 3 Remove the essories. Instller referene guide 8 Dikin Altherm Low temperture split

g h e+f 4 Aout the units nd options 3.4. To remove the essories from the kup heter 1 Remove the wll rket from the ox. d 1 1 1 1 e f g h 1 1 4 Aout the units nd options d e f g h Generl sfety preutions Addendum ook for optionl equipment Indoor unit instlltion mnul Opertion mnul Seling ring for shut-off vlve Shut-off vlve User interfe over Top plte of indoor unit 3.4 Bkup heter The kup heter is n option nd n only e used in omintion with EHBH_CBV nd EHVH_S_CBV indoor units. 3.4.1 To unpk the kup heter 1 4.1 Overview: Aout the units nd options This hpter ontins informtion out: Identifying the outdoor unit Identifying the indoor unit Identifying the kup heter (if pplile) Comining outdoor nd indoor units Comining the outdoor unit with options Comining the indoor unit with options 4. Identifition When instlling or serviing severl units t the sme time, mke sure NOT to swith the servie pnels etween different models. 4..1 Identifition lel: Outdoor unit Lotion Model identifition Exmple: ER L Q 006 CA V3 ER Code Explntion Europen split outdoor pir het pump Dikin Altherm Low temperture split Instller referene guide 9

4 Aout the units nd options Code Explntion L Low wter temperture mient zone: 10~ 0 C Q Refrigernt R410A 006 Cpity lss CA V3 Model series Power supply 4.. Identifition lel: Indoor unit Lotion Model identifition Exmple: E HB H 04 CB V E HB H Code Europen model Wll-mounted indoor unit Heting only 04 Cpity lss CB V Model series Desription Model without kup heter in the spe heting iruit 4..3 Identifition lel: Bkup heter Lotion Model identifition Exmple: EK L BUH CB 6 W1 EK L BUH CB Code Europen kit Explntion Kit omptile with EHBH_CBV nd EHVH_S_CBV indoor units Bkup heter Model series 6 Cpity of heter kit (kw) W1 Power supply 4.3 Comining units nd options 4.3.1 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. 4.3. 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. EKRUCBL 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. Instller referene guide 10 Dikin Altherm Low temperture split

4 Aout the units nd options Lnguges on the user interfe n e uploded y PC softwre or opied from n user interfe to the other. For instlltion instrutions, see "7.10.8 To onnet the user interfe" on pge 44. 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, RTRNETA) You n onnet n optionl room thermostt to the indoor unit. This thermostt n either e wired (EKRTWA) or wireless (EKRTR1 nd RTRNETA). Thermostt RTRNETA n only e used in heting-only systems. 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. 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 http://www.dikineurope.om/support-nd-mnuls/softwredownlods/. For instlltion instrutions, see the instlltion mnul of the PC le nd "8 Configurtion" on pge 48. Het pump onvetor (FWXV) For providing spe heting, 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. Drin pn kit (EKHBDPCA) The drin pn is required to drin umulted ondenstion from the indoor unit. It is required during low temperture ooling opertion of the indoor unit nd when the leving wter temperture is <18 C. For instlltion instrutions, see the instlltion mnul of the drin pn kit. Solr kit (EKSOLHW) The solr kit is required to onnet the solr pplition with the domesti hot wter tnk. For instlltion, see the instlltion mnul of the solr kit nd ddendum ook for optionl equipment. Domesti hot wter tnk The domesti hot wter tnk n e onneted to the indoor unit for providing domesti hot wter. Bkup heter (EKLBUHCB6W1) You n instll n optionl kup heter. For instlltion instrutions, see the instlltion mnul of the kup heter, or this instller referene guide. LAN dpter for smrtphone ontrol + Smrt Grid pplitions (BRP069A61) You n instll this LAN dpter to: Control the system vi smrtphone pp. Use the system in vrious Smrt Grid pplitions. For instlltion instrutions, see the instlltion mnul of the LAN dpter. LAN dpter for smrtphone ontrol (BRP069A6) You n instll this LAN dpter to ontrol the system vi smrtphone pp. For instlltion instrutions, see the instlltion mnul of the LAN dpter. Dikin Altherm Low temperture split Instller referene guide 11

5 Applition guidelines 4.3.3 Possile omintions of indoor unit nd outdoor unit Indoor unit Outdoor unit ERLQ004CAV3 ERLQ006CAV3 ERLQ008CAV3 EHBH04CBV O EHBH08CBV O O 4.3.4 Possile omintions of indoor unit nd domesti hot wter tnk Indoor unit Domesti hot wter tnk EKHWS EKHWP EKHWE EKHWET EHBH04CBV O O O O EHBH08CBV O O 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 48. This hpter ontins pplition guidelines for: Setting up the spe heting system Setting up n uxiliry het soure for spe heting Setting up the domesti hot wter tnk Setting up the energy metering Setting up the power onsumption Setting up n externl temperture sensor 5. 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.6.C] to 1. 5..1 Single room Under floor heting or rditors Wired room thermostt Setup A B A B Min leving wter temperture zone One single room User interfe used s room thermostt The under floor heting or rditors re diretly onneted to the indoor unit. The room temperture is ontrolled y the user interfe, whih is used s room thermostt. Possile instlltions: User interfe instlled in the room nd used s room thermostt User interfe instlled t the indoor unit nd used for ontrol lose to the indoor unit + user interfe instlled in the room nd used s room thermostt Configurtion Setting Unit temperture ontrol: #: [A..1.7] Code: [C-07] Numer of wter temperture zones: #: [A..1.8] Code: [7-0] Benefits Vlue (RT ontrol): Unit opertion is deided sed on the mient temperture of the user interfe. 0 (1 LWT zone): Min Cost effetive. You do NOT need n dditionl externl room thermostt. Instller referene guide 1 Dikin Altherm Low temperture split

5 Applition guidelines Highest omfort nd effiieny. The smrt room thermostt funtionlity n derese or inrese the desired leving wter temperture sed on the tul room temperture (modultion). This results in: Stle room temperture mthing the desired temperture (higher omfort) Less ON/OFF yles (more quiet, higher omfort nd higher effiieny) Lowest possile leving wter temperture (higher effiieny) Esy. You n esily set the desired room temperture vi the user interfe: For your dily needs, you n use preset vlues nd shedules. To devite from your dily needs, you n temporrily overrule the preset vlues nd shedules, use the holidy mode Under floor heting or rditors Wireless room thermostt Setup A B A B Min leving wter temperture zone One single room Reeiver for wireless externl room thermostt Wireless externl room thermostt The under floor heting or rditors re diretly onneted to the indoor unit. The room temperture is ontrolled y the wireless externl room thermostt (optionl equipment EKRTR1). Configurtion Setting Unit temperture ontrol: #: [A..1.7] Code: [C-07] Numer of wter temperture zones: #: [A..1.8] Code: [7-0] Externl room thermostt for the min zone: #: [A...4] Code: [C-05] Benefits Vlue 1 (Ext RT ontrol): Unit opertion is deided y the externl thermostt. 0 (1 LWT zone): Min 1 (Thermo ON/OFF): When the used externl room thermostt or het pump onvetor n only send thermo ON/OFF ondition. Wireless. The Dikin externl room thermostt is ville in wireless version. Effiieny. Although the externl room thermostt only sends ON/ OFF signls, it is speifilly designed for the het pump system. Het pump onvetors Setup A B A B Min leving wter temperture zone One single room Remote ontroller of the het pump onvetors The under floor heting or rditors re diretly onneted to the indoor unit. The desired room temperture is set vi the remote ontroller of the het pump onvetors. The spe heting demnd signl is sent to one digitl input on the indoor unit (XM/1 nd XM/4). The spe opertion mode is sent to the het pump onvetors y one digitl output on the indoor unit (XM/3 nd XM/33). Configurtion When using multiple het pump onvetors, mke sure eh one reeives the infrred signl from the remote ontroller of the het pump onvetors. Setting Unit temperture ontrol: #: [A..1.7] Code: [C-07] Numer of wter temperture zones: #: [A..1.8] Code: [7-0] Externl room thermostt for the min zone: #: [A...4] Code: [C-05] Benefits Vlue 1 (Ext RT ontrol): Unit opertion is deided y the externl thermostt. 0 (1 LWT zone): Min 1 (Thermo ON/OFF): When the used externl room thermostt or het pump onvetor n only send thermo ON/OFF ondition. Effiieny. Optiml energy effiieny euse of the interlink funtion. Stylish. Comintion: Under floor heting + Het pump onvetors Spe heting is provided y: The under floor heting The het pump onvetors Setup Dikin Altherm Low temperture split Instller referene guide 13

5 Applition guidelines A B Setup A B C T A B Min leving wter temperture zone One single room Remote ontroller of the het pump onvetors The het pump onvetors re diretly onneted to the indoor unit. The desired room temperture is set vi the remote ontroller of the het pump onvetors. The spe heting demnd signl is sent to one digitl input on the indoor unit (XM/1 nd XM/4) The spe opertion mode is sent to the het pump onvetors y one digitl output (XM/3 nd XM/33) on the indoor unit. Configurtion Setting Unit temperture ontrol: #: [A..1.7] Code: [C-07] Numer of wter temperture zones: #: [A..1.8] Code: [7-0] Externl room thermostt for the min zone: #: [A...4] Code: [C-05] Benefits Vlue 1 (Ext RT ontrol): Unit opertion is deided y the externl thermostt. 0 (1 LWT zone): Min 1 (Thermo ON/OFF): When the used externl room thermostt or het pump onvetor n only send thermo ON/OFF ondition. Effiieny. Under floor heting hs the est performne with Altherm LT. Comfort. The omintion of the two het emitter types provides exellent heting omfort of the under floor heting. 5.. Multiple rooms One LWT zone If only one leving wter temperture zone is needed euse the design leving wter temperture of ll het emitters is the sme, you do NOT need mixing vlve sttion (ost effetive). Exmple: If the het pump system is used to het up one floor where ll the rooms hve the sme het emitters. Under floor heting or rditors Thermostti vlves If you re heting up rooms with under floor heting or rditors, very ommon wy is to ontrol the temperture of the min room y using thermostt (this n either e the user interfe or n externl room thermostt), while the other rooms re ontrolled y so-lled thermostti vlves, whih open or lose depending on the room temperture. A Min leving wter temperture zone B Room 1 C Room User interfe The under floor heting of the min room is diretly onneted to the indoor unit. The room temperture of the min room is ontrolled y the user interfe used s thermostt. A thermostti vlve is instlled efore the under floor heting in eh of the other rooms. Configurtion Mind situtions where the min room n e heted y nother heting soure. Exmple: Fireples. Setting Unit temperture ontrol: #: [A..1.7] Code: [C-07] Numer of wter temperture zones: #: [A..1.8] Code: [7-0] Benefits Cost effetive. Vlue (RT ontrol): Unit opertion is deided sed on the mient temperture of the user interfe. 0 (1 LWT zone): Min Esy. Sme instlltion s for one room, ut with thermostti vlves. Under floor heting or rditors Multiple externl room thermostts Setup A B M1 A Min leving wter temperture zone B Room 1 C Room Externl room thermostt Bypss vlve For eh room, shut-off vlve (field supplied) is instlled to void leving wter supply when there is no heting demnd. C M Instller referene guide 14 Dikin Altherm Low temperture split

5 Applition guidelines A ypss vlve must e instlled to mke wter reirultion possile when ll shut-off vlves re losed. To gurntee relile opertion, provide minimum wter flow s desried in tle "To hek the wter volume nd flow rte" in "6.4 Prepring wter piping" on pge 6. The user interfe onneted to the indoor unit deides the spe opertion mode. Mind tht the opertion mode on eh room thermostt must e set to mth the indoor unit. The room thermostts re onneted to the shut-off vlves, ut do NOT hve to e onneted to the indoor unit. The indoor unit will supply leving wter ll the time, with the possiility to progrm leving wter shedule. Configurtion Setting Unit temperture ontrol: #: [A..1.7] Code: [C-07] Numer of wter temperture zones: #: [A..1.8] Code: [7-0] Benefits Vlue 0 (LWT ontrol): Unit opertion is deided sed on the leving wter temperture. 0 (1 LWT zone): Min Compred with under floor heting or rditors for one room: Comfort. You n set the desired room temperture, inluding shedules, for eh room vi the room thermostts. Het pump onvetors Setup A B A Min leving wter temperture zone B Room 1 C Room Remote ontroller of the het pump onvetors The desired room temperture is set vi the remote ontroller of the het pump onvetors. The user interfe onneted to the indoor unit deides the spe opertion mode. The heting demnd signls of eh het pump onvetor re onneted in prllel to the digitl input on the indoor unit (XM/1 nd XM/4). The indoor unit will only supply leving wter temperture when there is n tul demnd. To inrese omfort nd performne, Dikin reommends to instll the vlve kit option EKVKHPC on eh het pump onvetor. C Configurtion Setting Unit temperture ontrol: #: [A..1.7] Code: [C-07] Numer of wter temperture zones: #: [A..1.8] Code: [7-0] Benefits Vlue 1 (Ext RT ontrol): Unit opertion is deided y the externl thermostt. 0 (1 LWT zone): Min Compred with het pump onvetors for one room: Comfort. You n set the desired room temperture, inluding shedules, for eh room vi the remote ontroller of the het pump onvetors. Comintion: Under floor heting + Het pump onvetors Setup A B M1 A Min leving wter temperture zone B Room 1 C Room Externl room thermostt Remote ontroller of the het pump onvetors For eh room with het pump onvetors: The het pump onvetors re diretly onneted to the indoor unit. For eh room with under floor heting: A shut-off vlve (field supply) is instlled efore the under floor heting. It prevents hot wter supply when the room hs no heting demnd. For eh room with het pump onvetors: The desired room temperture is set vi the remote ontroller of the het pump onvetors. For eh room with under floor heting: The desired room temperture is set vi the externl room thermostt (wired or wireless). The user interfe onneted to the indoor unit deides the spe opertion mode. Mind tht the opertion mode on eh externl room thermostt nd remote ontroller of the het pump onvetors must e set to mth the indoor unit. Configurtion To inrese omfort nd performne, Dikin reommends to instll the vlve kit option EKVKHPC on eh het pump onvetor. Setting Unit temperture ontrol: #: [A..1.7] Code: [C-07] C Vlue 0 (LWT ontrol): Unit opertion is deided sed on the leving wter temperture. Dikin Altherm Low temperture split Instller referene guide 15

5 Applition guidelines Setting Numer of wter temperture zones: #: [A..1.8] Code: [7-0] Vlue 0 (1 LWT zone): Min 5..3 Multiple rooms Two LWT zones If the het emitters seleted for eh room re designed for different leving wter tempertures, you n use different leving wter temperture zones (mximum ). In this doument: Min zone = Zone with the lowest design temperture Additionl zone = The other zone CAUTION When there is more thn one leving wter zone, you must ALWAYS instll mixing vlve sttion in the min zone to derese (in heting) the leving wter temperture when the dditionl zone hs demnd. Typil exmple: 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 A B D E A Additionl leving wter temperture zone B Room 1 C Room D Min leving wter temperture zone E Room 3 Remote ontroller of the het pump onvetors User interfe Mixing vlve sttion d Pressure regulting vlve A pressure regulting vlve should e implemented efore the mixing vlve sttion. This is to gurntee the orret wter flow lne etween the min leving wter temperture zone nd the dditionl leving wter temperture zone in reltion to the required pity of oth wter temperture zones. C For the min zone: A mixing vlve sttion is instlled efore the under floor heting. The pump of the mixing vlve sttion is ontrolled y the ON/ OFF signl on the indoor unit (XM/5 nd XM/7; norml losed shut-off vlve output). The room temperture is ontrolled y the user interfe, whih is used s room thermostt. For the dditionl zone: The het pump onvetors re diretly onneted to the indoor unit. The desired room temperture is set vi the remote ontroller of the het pump onvetors for eh room. The heting demnd signls of eh het pump onvetor re onneted in prllel to the digitl input on the indoor unit (XM/1 nd XM/4). The indoor unit will only supply the desired dditionl leving wter temperture when there is n tul demnd. The user interfe onneted to the indoor unit deides the spe opertion mode. Mind tht the opertion mode on eh remote ontroller of the het pump onvetors must e set to mth the indoor unit. Configurtion Setting Unit temperture ontrol: #: [A..1.7] Code: [C-07] Numer of wter temperture zones: #: [A..1.8] Code: [7-0] In se of het pump onvetors: Externl room thermostt for the dditionl zone: #: [A...5] Code: [C-06] Shut-off vlve output At the mixing vlve sttion Benefits Comfort. Vlue (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 1 ( 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. Set the desired min leving wter temperture. The smrt room thermostt funtionlity n derese or inrese the desired leving wter temperture sed on the tul room temperture (modultion). The omintion of the two het emitter systems provides the exellent heting omfort of the under floor heting, nd the rpid ir het up of the het pump onvetors (e.g., living room=under floor heting nd the edroom=onvetor (no ontinuous heting)). Instller referene guide 16 Dikin Altherm Low temperture split

5 Applition guidelines 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 n uxiliry het soure for spe heting Spe heting n e done y: The indoor unit An uxiliry oiler (field supply) onneted to the system When the room thermostt requests heting, the indoor unit or the uxiliry oiler strts operting depending on the outdoor temperture (sttus of the hngeover to externl het soure). When the permission is given to the uxiliry oiler, the spe heting y the indoor unit is turned OFF. Bivlent opertion is only possile for spe heting, NOT for domesti hot wter prodution. Domesti hot wter is lwys produed y the DHW tnk onneted to the indoor unit. Setup During heting opertion of the het pump, the het pump opertes to hieve the desired temperture set vi the user interfe. When wetherdependent opertion is tive, the wter temperture is determined utomtilly depending on the outdoor temperture. During heting opertion of the uxiliry oiler, the uxiliry oiler opertes to hieve the desired wter temperture set vi the uxiliry oiler ontroller. Integrte the uxiliry oiler s follows: e f g h j d e f g h i j k l m Dikin Altherm Low temperture split f l d M n k h i i m FHL1 FHL Outdoor unit Indoor unit Het exhnger Anti-legionell heter Pump Shut-off vlve Motorised 3 wy vlve (delivered with DHW tnk) Non-return vlve (field supply) Shut-off vlve (field supply) Colletor (field supply) Auxiliry oiler (field supply) Aqustt vlve (field supply) DHW tnk (option) FHL3 n FHL1...3 Het exhnger oil Under floor heting Mke sure the uxiliry oiler nd its integrtion in the system omplies with pplile legisltion. Dikin is NOT responsile for inorret or unsfe situtions in the uxiliry oiler system. Mke sure the return wter to the het pump does NOT exeed 55 C. To do so: Set the desired wter temperture vi the uxiliry oiler ontroller to mximum 55 C. Instll n qustt vlve in the return wter flow of the het pump. Set the qustt vlve to lose ove 55 C nd to open elow 55 C. Instll non-return vlves. Mke sure to only hve one expnsion vessel in the wter iruit. An expnsion vessel is lredy premounted in the indoor unit. Instll the digitl I/O PCB (option EKRP1HB). Connet X1 nd X (hngeover to externl het soure) on the PCB to the uxiliry oiler thermostt. To setup the het emitters, see "5. Setting up the spe heting system" on pge 1. Configurtion Vi the user interfe (quik wizrd): Set the use of ivlent system s externl het soure. Set the ivlent temperture nd hysteresis. Mke sure the ivlent hysteresis hs enough differentil to prevent frequent hngeover etween indoor unit nd uxiliry oiler. Beuse the outdoor temperture is mesured y the outdoor unit ir thermistor, instll the outdoor unit in the shdow so tht it is NOT influened or turned ON/OFF y diret sunlight. Frequent hngeover my use orrosion of the uxiliry oiler. Contt the mnufturer of the uxiliry oiler for more informtion. Chngeover to externl het soure deided y n uxiliry ontt Only possile in externl room thermostt ontrol AND one leving wter temperture zone (see "5. Setting up the spe heting system" on pge 1). The uxiliry ontt n e: An outdoor temperture thermostt An eletriity triff ontt A mnully operted ontt Setup: Connet the following field wiring: L Indoor/Auto/Boiler N B TI H A K1A Com KA K1A Boiler thermostt input Indoor XM B TI 1 3 4 X Y KA Instller referene guide 17

5 Applition guidelines A H K1A KA Indoor Auto Boiler Instller referene guide 18 Auxiliry ontt (norml losed) Heting demnd room thermostt (optionl) Auxiliry rely for tivtion of indoor unit (field supply) Auxiliry rely for tivtion of oiler (field supply) Indoor unit Automti Boiler Mke sure the uxiliry ontt hs enough differentil or time dely to prevent frequent hngeover etween indoor unit nd uxiliry oiler. If the uxiliry ontt is n outdoor temperture thermostt, instll the thermostt in the shdow so tht it is NOT influened or turned ON/OFF y diret sunlight. Frequent hngeover my use orrosion of the uxiliry oiler. Contt the mnufturer of the uxiliry oiler for more informtion. 5.4 Setting up the domesti hot wter tnk The DHW tnk n e instlled stndlone s option. It ontins.4 kw nti-legionell heter. 5.4.1 System lyout Stndlone DHW tnk d e e d e f g h i j FHL1...3 f M h Outdoor unit Indoor unit Het exhnger Pump Shut-off vlve Motorised 3 wy vlve Colletor (field supply) DHW tnk Anti-legionell heter Het exhnger oil Under floor heting FHL1 i j g FHL FHL3 5.4. 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 volume nd desired temperture for the DHW tnk onsists of: 1 Determining the DHW onsumption (equivlent hot wter volume t 40 C). Determining the volume nd desired temperture for the DHW tnk. Possile DHW tnk volumes Type Stndlone DHW tnk Energy sving tips 150 l 00 l 300 l 500 l Possile volumes 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 DHW tnk (nti-legionell heter) 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 eletril resistne. The nti-legionell heter: Is used s emergeny heter. Is used when the disinfetion funtion for the DHW tnk is tive. Cn ssist during defrost opertion for the outdoor unit. 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 = 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 Dikin Altherm Low temperture split

5 Applition guidelines Determining the volume nd desired temperture for the DHW tnk Formul V 1 =V +V (T 40)/(40 T 1 ) V =V 1 (40 T 1 )/(T T 1 ) V 1 V T T 1 If: V =180 l T =54 C T 1 =15 C Then V 1 =80 l If: V 1 =480 l T =54 C T 1 =15 C Then V =307 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 5.4.3 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 Anti-legionell heter Solr pnels For more informtion out optimizing the energy onsumption for produing domesti hot wter, see "8 Configurtion" on pge 48. 5.4.4 Comintion: Stndlone DHW tnk + Solr pnels By onneting the DHW tnk to solr pnels, the DHW tnk n e heted y solr energy. For instlltion instrutions, see the instlltion mnul of the solr kit nd ddendum ook for optionl equipment..4. M 0.5 m f.3 e.1 5.4.5 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 30. Configurtion For more informtion, see "8 Configurtion" on pge 48. You n progrm shedule to ontrol the DHW pump vi the user interfe. For more informtion, see the user referene guide. 5.4.6 DHW pump for disinfetion Setup d e f g h i h i d e 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 Reirultion onnetion f g 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. Configurtion The indoor unit n ontrol DHW pump opertion. For more informtion, see "8 Configurtion" on pge 48. 1 3 4 d e f d Solr pnels Solr pump sttion Solr pump sttion ontroller with temperture sensors Tnk temperture sensor Return temperture sensor to solr pnels Supply temperture with flow meter from solr pnels Solr pnel temperture sensor Solr kit DHW temperture sensor of the unit Solenoid -wy vlve (only for UK). Oligtory for ompline to UK uilding regultion G3. 5.4.7 DHW pump for tnk preheting Setup g h e d f Indoor unit DHW tnk DHW pump (field supply) Dikin Altherm Low temperture split Instller referene guide 19

5 Applition guidelines d e f g h Non return vlve (field supply) Shower (field supply) Cold wter Domesti hot wter OUT Reirultion onnetion The DHW pump is field-supplied nd its instlltion is the responsiility of the instller. For the stndlone DHW tnk: If there is no eletril kup heter in the spe heting iruit, you must instll DHW pump for tnk preheting. Configurtion The indoor unit n ontrol DHW pump opertion. For more informtion, see "8 Configurtion" on pge 48. 5.5 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. 5.5.1 Produed het The sensors used to lulte the produed het re lirted utomtilly. Applile for ll models. The produed het is lulted internlly sed on: The leving nd entering wter temperture The flow rte The power onsumption of the nti-legionell heter in the domesti hot wter tnk Setup nd onfigurtion: No dditionl equipment needed. Mesure the pity (resistne mesurement) of the ntilegionell heter nd set the pity vi the user interfe. Exmple: If you mesure n nti-legionell heter resistne of 17.1Ω, the pity of the heter t 30 V is 3100 W. Clulting the onsumed energy Only pplile for EHBH04+08. The onsumed energy is lulted internlly sed on: The tul power input of the outdoor unit The set pity of the kup heter (if pplile) nd ntilegionell 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 nd step ) (if pplile) The nti-legionell heter Mesuring the onsumed energy Applile for ll models. Preferred method euse of higher ury. Requires externl power meters. Setup nd onfigurtion: When using eletril power meters, set the numer of pulses/kwh for eh power meter vi the user interfe. Consumed energy dt for EHBH11+16 models 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. 5.5.3 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 No kup heter or kup heter supplied from singlephse grid In other ses (i.e. three-phse outdoor unit nd/or kup heter onneted to threephse grid) Use power meter Single-phse Three-phse 5.5. 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 (if pplile)) nd mesuring the onsumed energy (exmple: for outdoor unit). If you do so, the energy dt will e invlid. Instller referene guide 0 Dikin Altherm Low temperture split

Exmple Single-phse power meter 00580 1 50 Three-phse power meter 00580 1 50 Power meter : 5 Applition guidelines In se of no kup heter or single-phse kup heter onfigurtion, use single-phse power meter. In other ses, use three-phse power meter. Exmple Single-phse outdoor unit with three-phse kup heter: d 00580 1 50 00580 1 50 d e A B C f A Outdoor unit B Indoor unit C DHW tnk g 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) g Anti-legionell heter (L 1 /N) Exeption You n use seond power meter if: e f g A B C A Outdoor unit B Indoor unit C DHW tnk Eletril inet (L 1 /L /L 3 /N) h Power meter (L 1 /L /L 3 /N) Fuse (L 1 /L /L 3 /N) d Fuse (L 1 /N) e Outdoor unit (L 1 /L /L 3 /N) f Indoor unit (L 1 /L /L 3 /N) g Bkup heter (L 1 /L /L 3 /N) The power rnge of one meter is insuffiient. h Anti-legionell heter (L 1 /N) The eletril meter nnot esily e instlled in the eletril inet. 30 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 "5.5.4 Preferentil kwh rte power supply" on pge 1 for n exmple with two power meters. 5.5.4 Preferentil kwh rte power supply Generl rule Power meter 1: Mesures the outdoor unit. Power meter : Mesures the rest (i.e. indoor unit, optionl kup heter, nd nti-legionell heter). Setup Connet power meter 1 to X5M/7 nd X5M/8. Connet power meter 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. e g h e A B C A B C d e f g h i j i f e j d Outdoor unit Indoor unit DHW tnk Eletril inet (L 1 /N): Preferentil kwh rte power supply Eletril inet (L 1 /L /L 3 /N): Norml kwh rte power supply Power meter (L 1 /N) Power meter (L 1 /L /L 3 /N) Fuse (L 1 /N) Fuse (L 1 /L /L 3 /N) Outdoor unit (L 1 /N) Indoor unit (L 1 /N) Bkup heter (L 1 /L /L 3 /N) Anti-legionell heter (L 1 /N) 5.6 Setting up the power onsumption ontrol The power onsumption ontrol: Is only pplile for EHBH04+08. Allows you to limit the power onsumption of the entire system (sum of outdoor unit, indoor unit, nti-legionell heter, nd optionl 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 5.6.1 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. Dikin Altherm Low temperture split Instller referene guide 1

5 Applition guidelines DI P i DI1 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 48): 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 t lest one eletril heter. 5.6. Power limittion tivted y digitl inputs Power limittion is lso useful in omintion with n energy mngement system. 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 ). 5 4 3 A8P 1 D A B C A B C D Outdoor unit Indoor unit DHW tnk Energy mngement system Power limittion tivtion (4 digitl inputs) Anti-legionell heter DI3 DI4 Setup P i t DI 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 48): 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. 5.6.3 Power limittion proess The outdoor unit hs etter effiieny thn the eletril heters. Therefore, the eletril heters re limited nd turned OFF first. The system limits power onsumption in the following order: 1 Limits ertin eletril heters. If hs priority Then set the heter priority vi the user interfe to Domesti hot wter prodution Anti-legionell heter. Spe heting Turns OFF ll eletril heters. 3 Limits the outdoor unit. 4 Turns OFF the outdoor unit. Exmple If the onfigurtion is s follows: Result: The kup heter (if pplile) will e turned OFF first. Bkup heter (if pplile). Result: The nti-legionell heter will e turned OFF first. Power limittion level does NOT llow opertion of oth ntilegionell heter nd kup heter (step 1 nd step ). Heter priority = Anti-legionell heter. Then power onsumption is limited s follows: Instller referene guide Dikin Altherm Low temperture split

6 Preprtion P h d A B C P h C e A B C d e e C e Produed het Consumed energy Outdoor unit Anti-legionell heter Bkup heter Limited outdoor unit opertion Full outdoor unit opertion Anti-legionell heter turned ON Bkup heter step 1 turned ON Bkup heter step turned ON 5.7 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...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...B]. During suspend (see "8 Configurtion" on pge 48), 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. 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. 6..1 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: 100 >50 (mm) >350 Air outlet Air inlet >50 (mm) Do NOT stk the units on eh other. Do NOT hng the unit on eiling. >50 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. >350 Dikin Altherm Low temperture split Instller referene guide 3

6 Preprtion d Se wind Building Outdoor unit Windreker The outdoor unit is designed for outdoor instlltion only, nd for mient tempertures rnging 10~43 C in ooling mode nd 5~5 C in heting mode. 6.. 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. Bffle plte Previling wind diretion Air outlet Do NOT instll the unit in the following ples: Sound sensitive res (e.g. ner edroom), 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: Where the voltge flututes lot In vehiles or vessels Where idi or lkline vpour is present Seside instlltion. Mke sure the outdoor unit is NOT diretly exposed to se winds. This is to prevent orrosion used y high levels of slt in the ir, whih might shorten the life of the unit. Instll the outdoor unit wy from diret se winds. Exmple: Behind the uilding. If the outdoor unit is exposed to diret se winds, instll windreker. Height of windreker 1.5 height of outdoor unit Mind the servie spe requirements when instlling the windreker. d d 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 31 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. 6..3 Instlltion site requirements of the indoor unit Also red the preutions nd requirements in the "Generl sfety preutions" hpter. Mind the mesurement 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 Mximum distne etween the 3 wy vlve nd the indoor unit (for instlltions with domesti hot wter tnk) Mximum distne etween the domesti hot wter tnk nd the indoor unit (for instlltions with domesti hot wter tnk) 30 m 3 m 0 m 3 m 10 m Mind the following sping instlltion guidelines: Instller referene guide 4 Dikin Altherm Low temperture split

6 Preprtion 00 00 The kup heter is designed to e wll-mounted in indoor lotions only. Mke sure the instlltion surfe is flt nd vertil non-omustile wll. The kup heter is designed tempertures rnging from 5~30 C. to operte in mient Do NOT instll the kup heter in the following ples: Sound sensitive res (e.g. ner edroom), so tht the opertion noise will use no troule. 10 10 In ples with high humidity (mx. RH=85%), for exmple throom. 500 1150 In ples where frost is possile. (mm) 6.3 Prepring refrigernt piping 6.3.1 Refrigernt piping requirements 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. Also red the preutions nd requirements in the "Generl sfety preutions" hpter. Sound sensitive res (e.g. ner edroom), 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. 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) Instlltion site requirements of the kup heter Anneled (O) 0.8 mm 15.9 mm (5/8") Anneled (O) 1.0 mm () 6.3. Also red the preutions nd requirements in the "Generl sfety preutions" hpter. 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 with het trnsfer rte etween 0.041 nd 0.05 W/mK (0.035 nd 0.045 kl/mh C) with het resistne of t lest 10 C Mind the mesurement guidelines: Insultion thikness Mximum distne etween the kup heter nd the indoor unit >00 Mind the following sping instlltion guidelines: 10 m Pipe outer dimeter (Øp) Insultion thikness (t) 8~10 mm 10 mm 15.9 mm (5/8") 16~0 mm 13 mm Øi 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 0 mm to prevent ondenstion on the surfe of the insultion. >350 >500 Insultion inner dimeter (Øi) 6.4 mm (1/4") Øp >50 Ø Use polyethylene fom s insultion mteril: >50 Thikness (t)() 6.4 mm (1/4") The indoor unit is designed for indoor instlltion only nd for mient tempertures rnging from 5~35 C. 6..4 Temper grde Dikin Altherm Low temperture split Instller referene guide 5

6 Preprtion 6.4 Prepring wter piping 6.4.1 Wter iruit requirements Also red the preutions nd requirements in the "Generl sfety preutions" hpter. In se of plsti pipes, mke sure they re fully oxygen diffusion tight ording to DIN 476. The diffusion of oxygen into the piping n led to exessive orrosion. 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 85 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 04+08 models 1 l/min 11+16 models 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. d e f g h i j k FCU1...3 FHL1...3 T T d 65 C e e f M k j g M i FCU1 FHL1 h h h h FCU FHL 89 C FCU3 FHL3 Outdoor unit Indoor unit Het exhnger Pump Shut-off vlve Motorised 3-wy vlve (supplied with the domesti hot wter tnk) Motorised -wy vlve (field supply) Colletor Domesti hot wter tnk Het exhnger oil Anti-legionell heter Fn oil unit (optionl) (field supply) Floor heting loop (field supply) Room thermostt (optionl) (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 oming into ontt with eletril prts. 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 Seprting iruits. When using 3-wy vlve in the wter iruit mke sure tht the domesti hot wter iruit nd the floor heting iruit is fully seprted. Vlve Chnge over time. When using -wy vlve or 3-wy vlve in the wter iruit, the mximum hnge-over time of the vlve must e 60 seonds. Filter. It is strongly reommended to instll n dditionl filter on the heting wter iruit. Espeilly to remove metlli prtiles from foul heting piping, it is reommended to use mgneti or Instller referene guide 6 Dikin Altherm Low temperture split

6 Preprtion 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. Domesti hot wter ontrol: dvned" on pge 6. 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 e f g FHL1...3 T1...3 M1...3 d e e f g Mximum wter volume T1 M1 FHL1 T M FHL T3 M3 FHL3 Outdoor unit Indoor unit Het exhnger Pump Shut-off vlve Colletor (field supply) By-pss vlve (field supply) Floor heting loop (field supply) Individul room thermostt (optionl) Individul motorised vlve to ontrol loop FHL1...3 (field supply) Use the following grph to determine the mximum wter volume for the lulted pre-pressure..5 d 1.5 d Reirultion onnetion Hot wter onnetion Shower Reirultion pump 6.4. 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) 6.4.3 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, the internl wter volume of the indoor unit NOT inluded. 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. 1 0.5 0.3 0 10 50 100 150 00 50 300 350 400 450 Pre-pressure (r) Mximum wter volume (l) Exmple: Mximum wter volume nd expnsion vessel prepressure Instlltion height differene () 7 m 80 l No pre-pressure djustment is required. >7 m Do the following: () Inrese the prepressure. Chek if the wter volume does NOT exeed the mximum llowed wter volume. Wter volume >80 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. Dikin Altherm Low temperture split Instller referene guide 7

6 Preprtion Minimum flow rte Chek tht the minimum flow rte (required during defrost/kup heter opertion (if pplile)) in the instlltion is gurnteed in ll onditions. 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 04+08 models 1 l/min 11+16 models 15 l/min See the reommended proedure s desried in "9.4 Cheklist during ommissioning" on pge 73. 6.4.4 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 Shrder vlve of the expnsion vessel. 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 6.5.1 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. 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 MUST hve dedited power supply nd MUST e proteted y the sfety devies required y the pplile legisltion. Shrder vlve 6.4.5 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 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 (80 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. WARNING ALWAYS use multiore le for power supply les. 6.5. 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; Instller referene guide 8 Dikin Altherm Low temperture split

6 Preprtion demnd tht the equipment only onsumes limited mount of eletriity during ertin periods of time. Power supply is interrupted 0 0 58 17 18 0 0 58 0 5 1 0 0 0 580 0 5 1 0 1 3 4 1 5 9 19 0 0 580 4 d e 1 During preferentil kwh rte power supply tivtion, power supply is interrupted immeditely or fter some time y the eletriity ompny. In this se, the Remrk: The indoor unit must e eletriity ompny must lwys llow the powered y power onsumption seprte norml power supply. of the indoor unit. 6.5.4 d e 8 10 Single power supply for outdoor unit nd nti-legionell heter Bkup heter (option) Indoor unit Domesti hot wter tnk Anti-legionell heter Desription Wires Mximum running urrent During preferentil kwh rte power supply tivtion, power supply is NOT interrupted. The outdoor unit is turned off y the ontrol. 1 3 4 5 M 1 50 Item M 1 50 3 4 3 3 5 1 16 14 Preferentil kwh rte power supply Power supply is NOT interrupted 6 6 7 13 Overview of eletril onnetions exept externl tutors Norml power supply 1 15 Whether the power supply is interrupted or not, the wiring to the unit is different. 6.5.3 0 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. Norml power supply Preferentil kwh rte power supply Power supply for outdoor unit Power supply nd interonnetion le to indoor unit Power supply for kup heter Preferentil kwh rte power supply (voltge free ontt) 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. The following illustrtion is n exmple nd might NOT mth your system lyout. Outdoor unit nd indoor unit power supply () 1 Power supply for outdoor unit +GND or 3+GND Power supply nd 3 interonnetion le to indoor unit () 4 Preferentil kwh rte power supply (voltge free ontt) (e) 5 Norml kwh rte power supply 6.3 A User interfe 6 User interfe (f) Optionl equipment 7 3 wy vlve 3 100 ma() 8 Power supply for ntilegionell heter nd therml protetion (from indoor unit) 4+GND () 9 Power supply for ntilegionell heter (to indoor unit) +GND 13 A 10 Domesti hot wter tnk thermistor (d) 11 Power supply for ottom plte heter () 1 Room thermostt 3 or 4 100 ma() 13 Outdoor mient temperture sensor () 14 Indoor mient temperture sensor () 15 Het pump onvetor 4 100 ma() Field supplied omponents 16 Dikin Altherm Low temperture split Shut-off vlve 100 ma() 17 Eletriity meter (per meter) () 18 Domesti hot wter pump () 19 Alrm output () Instller referene guide 9

7 Instlltion Item Desription Wires Mximum running urrent 0 Chngeover to externl het soure ontrol 1 Spe heting opertion ontrol Power onsumption digitl inputs () () (per input signl) 3 Sfety thermostt (e) () () () (d) (e) (f) Bkup heter Refer to nme plte on outdoor unit. Minimum le setion 0.75 mm². Cle setion.5 mm². The thermistor nd onnetion wire (1 m) re delivered with the domesti hot wter tnk. Cle setion 0.75 mm² till 1.5 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 1.5 mm²; mximum length: 500 m. Applile for oth single user interfe nd dul user interfe onnetion. More tehnil speifitions of the different onnetions re indited on the inside of the indoor unit. Item Desription Wires Mximum running urrent Power supply 4 Bkup heter power supply Interonnetion le 5 Bkup heter thermistor 6 Bkup heter therml protetor Bkup heter onnetion () See tle elow. () () 3 () Minimum le setion: 0.75 mm ; mximum length: 10 m. () Minimum le setion: 1.50 mm ; mximum length: 10 m. Typil workflow Instlltion typilly onsists of the following stges: 1 Mounting the outdoor unit. Mounting the indoor unit. 3 Mounting the kup heter (if pplile). 4 Conneting the refrigernt piping. 5 Cheking the refrigernt piping. 6 Chrging refrigernt. 7 Conneting the wter piping. 8 Conneting the eletril wiring. 9 Finishing the outdoor instlltion. 10 Finishing the indoor instlltion. 11 Finishing the instlltion of the kup heter (if pplile). Depending on the units nd/or the instlltion onditions, it might e neessry to onnet eletril wiring efore you n hrge refrigernt. 7. Opening the units 7..1 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. 7.. To open the outdoor unit DANGER: RISK OF ELECTROCUTION DANGER: RISK OF BURNING Bkup heter Power supply Wires *6W 1 30 V +GND + ridges 3 400 V 4+GND More tehnil speifitions of the different onnetions re indited on the inside of the kup heter. 1 1 7 Instlltion 7.1 Overview: Instlltion This hpter desries wht you hve to do nd know on-site to instll the system. 7..3 To open the indoor unit 1 Loosen nd remove the srews tht fix the front pnel. Instller referene guide 30 Dikin Altherm Low temperture split

7 Instlltion Tilt the front pnel towrds you nd remove the front pnel. 7..4 1 To open the swith ox over of the indoor unit 4 3 7.3 Mounting the outdoor unit 7.3.1 Aout mounting the outdoor unit When You hve to mount the outdoor nd indoor unit efore you n onnet the refrigernt nd wter piping. Typil workflow Mounting the outdoor unit typilly onsists of the following stges: 1 3 4 5 7..5 To open the kup heter 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 3. 7.3. Preutions when mounting the outdoor unit Also red the preutions nd requirements in the following hpters: Generl sfety preutions Preprtion 7.3.3 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: 1 7..6 The mximum height of the upper protruding prt of the olts is 15 mm. To open the swith ox over of the kup heter Dikin Altherm Low temperture split Instller referene guide 31

7 Instlltion 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. > 50 58 0 < 10 0 >300 8 >300 < 10 0 3 (mm) (mm) 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. Mximum snowfll height EKFT008CA option kit 0 58 0 15 < 3 8 >300 100 < 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: 7.3.4 To instll the outdoor unit CAUTION Do NOT remove the protetive rdord efore the unit is instlled properly. Instller referene guide 3 Dikin Altherm Low temperture split

7 Instlltion 1 Lift the outdoor unit s desried in "3.. To remove the essories from the outdoor unit" on pge 8. Instll the outdoor unit s follows: An dditionl drin pn kit (EKDP008CA) n e used to gther the drin wter. The drin pn kit onsists of: 1 Drin pn U-ems Air outlet The pedestl MUST e ligned with the kside of the U em. 3 Remove the protetive rdord nd instrution sheet. 83 mm 580 mm Protetive rdord Instrution sheet 7.3.5 To provide dringe Avoid instlltion ples where wter leking from the unit due to loked drin pn, use dmge to the lotion. 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). 7.3.6 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 les s indited in the following illustrtion (field supply). Ple the 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. Dikin Altherm Low temperture split Instller referene guide 33

7 Instlltion Remove the 4 srews from the ottom of the unit. Unhook nd remove the side pltes. 3 3 1 5 3 Put the instlltion pttern (see pking) on the wll nd follow the steps s shown elow. 7.4 Mounting the indoor unit 7.4.1 Aout mounting the indoor unit 1 4 3 4 Lift the 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. Instlling the drin pn kit (optionl). 7.4. 1 Preutions when mounting the indoor unit Also red the preutions nd requirements in the following hpters: Generl sfety preutions Preprtion 7.4.3 To instll the indoor unit CAUTION Do NOT grsp the piping to lift the indoor unit. 1 Lift the unit from the pkge. 5 Tilt the top of the unit ginst the wll t the position of the inserted srews. 6 Hook the unit ginst the wll. 60kg 1 7 Instller referene guide 34 3 Assemle the unit. Dikin Altherm Low temperture split

7 Instlltion 1 1 Hng the kup heter onto the wll rket. 3 5 7.4.4 To instll the drin pn kit If drin pn kit (EKHBDPCA) is required, instll it efore onneting the refrigernt nd wter pipes nd the eletril wiring. To instll, see the instlltion mnul of the drin pn kit. 7.5 Mounting the kup heter 7.5.1 Preutions when mounting the kup heter Also red the preutions nd requirements in the following hpters: Generl sfety preutions Preprtion 7.5. To instll the kup heter 1 Fix the wll rket to the wll with M5 srews. 3 Mrk the position of the hole t the ottom of the kup heter. 4 Remove the kup heter from the wll rket. 5 Drill hole for the ottom srew nd insert plug. 6 Hng the kup heter onto the wll rket. Mke sure it is fixed properly. 7 Fix the ottom of the kup heter to the wll with n M5 srew. 7.6 Conneting the refrigernt piping 7.6.1 Aout onneting the refrigernt piping Before onneting the refrigernt piping Mke sure the outdoor nd indoor unit re mounted. Typil workflow Conneting the refrigernt piping involves: Conneting the refrigernt piping to the outdoor unit Conneting the refrigernt piping to the indoor unit Insulting the refrigernt piping Keeping in mind the guidelines for: Pipe ending Flring pipe ends Brzing Using the stop vlves Dikin Altherm Low temperture split Instller referene guide 35