VIESMANN. Installation and service instructions VITOTRONIC 200. for contractors

Transcription

1 Installation and service instructions for contracrs VIESMANN Vitronic 00 Type KOB, KOB Weather-compensated, digital boiler control unit For applicability, see the last page VITOTRONIC 00 /0 Please keep safe.

2 Safety instructions Safety instructions Please follow these safety instructions closely prevent accidents and material losses. Safety instructions explained Danger This symbol warns against the risk of injury.! Please note This symbol warns against the risk of material losses and environmental pollution. Note Details identified by the word "Note" contain additional information. Target group These instructions are exclusively designed for qualified personnel. Work on gas equipment must only be carried out by a qualified gas fitter. Work on electrical equipment must only be carried out by a qualified electrician. The system must be commissioned by the system installer or a qualified person authorised by the installer. Regulations Observe the following when working on this system all legal instructions regarding the prevention of accidents, all legal instructions regarding environmental protection, the Code of Practice of relevant trade associations, all current safety regulations as defined by DIN, EN, DVGW, TRGI, TRF, VDE and all locally applicable standards, Gas Safety (Installation & Use) Regulations the appropriate Building Regulation either the Building regulations, the Building Regulation (Scotland), Building Regulations (Northern Ireland), the Water Fittings Regulation or Water Bylaws in Scotland, the current I.E.E. Wiring Regulations. If you smell gas Danger Escaping gas can lead explosions which may result in serious injury. Never smoke. Prevent naked flames and sparks. Never switch lights or electrical appliances ON or OFF. Close the gas shut-off valve. Open windows and doors. Remove all people from the danger zone. Notify your gas or electricity supplier from outside the building. Shut off the electricity supply the building from a safe place (outside the building).

3 Safety instructions Safety instructions (cont.) If you smell flue gas Danger Flue gas can lead life-threatening poisoning. Shut down the heating system. Ventilate the boiler room. Close all doors leading the living space. Working on the system When using gas as fuel, also close the main gas shut-off valve and safeguard against unauthorised reopening. Isolate the system from the power supply and check that it is no longer 'live', e.g. by removing a separate fuse or by means of a main isolar. Safeguard the system against unauthorised reconnection. Ancillary components, spare and wearing parts Please note! Spare and wearing parts which have not been tested gether with the heating system can compromise its function. Installing non-authorised components and non-approved modifications/conversion can compromise safety and may invalidate our warranty. For replacements, use only original spare parts from Viessmann or those which are approved by Viessmann.! Please note Electronic modules can be damaged by electro-static discharges. Touch earthed objects, such as heating or water pipes, discharge static loads. Repair work! Please note Repairing components which fulfil a safety function can compromise the safe operation of your heating system. Replace faulty components only with original Viessmann spare parts. 3

4 Index Installation instructions Preparing for installation System example, ID: _00_ System example, ID: _00_0... System example 3, ID: _00_ System example 4, ID: _00_ Installation sequence Overview of electrical connections... 3 Inserting cables and applying strain relief Inserting the boiler coding card Changing the high limit safety cut-out setting (if required) Changing the thermostat setting (if required) Connecting sensors Connecting pumps External burner start External demand... 4 External blocking... 4 Connecting a pressure-jet oil/gas burner Connecting an atmospheric burner Power supply Fitting the p part of the control unit for type KOB... 5 Opening the control unit Service instructions Commissioning Changing the language Setting the date and time Testing the high limit safety cut-out Matching coding addresses Checking outputs (actuars) and sensors Adjusting heating curves Connecting the control unit the LON... 6 Service scans Calling up the service menu Scanning operating data Brief scan Scanning and resetting the "Service" display Troubleshooting Fault display Index

5 Index Index Faults that are not displayed at the programming unit Function description Boiler water temperature control Heating circuit control... 8 Cylinder temperature control Code Calling up coding level "General" group "Boiler" group "DHW" group "Solar" group "Heating circuit ", "Heating circuit ", "Heating circuit 3" group... 0 Code Calling up coding level "General" group "Boiler" group... 5 "DHW" group... 8 "Solar" group... 0 "Heating circuit ", "Heating circuit ", "Heating circuit 3" group... 6 Designs Connection and wiring diagram Components Boiler coding card Sensors Radio clock receiver, part no Extension kit for heating circuit with mixer... 4 Temperature limiter for limiting the maximum temperature Extension EA External extension H5, part no Secondary air device Viair, part no , Parts lists Type KOB Type KOB Specification Settings and equipment

6 Index Index (cont.) Keyword index

7 Preparing for installation System example, ID: _00_0 One heating circuit without mixer and one heating circuit with mixer and DHW heating Heating mode Applications Heating system with different heat sources and methods of DHW heating One heating circuit without mixer One heating circuit with 3-way mixer Main components Oil condensing boiler, oil boiler or gas boiler 8 00 kw Heating circuit distribution DHW cylinder Function description Heating circuits ep/tp and DHW cylinder qp are regulated by boiler heating circuit controller. The heating circuits and DHW cylinder are each supplied by a separate circulation pump eq/tr and qe. The boiler heating circuit controller regulates the boiler water temperature in weather-compensated mode (= flow temperature of the heating circuit without mixer) and the temperature level of the heating circuit with mixer via an extension kit for one heating circuit with mixer. DHW heating If the temperature falls below the set DHW temperature at control unit, the burner of boiler starts and circulation pump qe of DHW cylinder qp runs. Within the periods selected at control unit, DHW is heated with or without priority control. In case of absolute priority control, heating circuit pumps eq/tr of the heating circuits are switched off and mixer tt is closed. With modulating priority control of the heating circuit with mixer, heating circuit pump tr remains on, and the mixer tt closes far enough enable the set boiler water temperature for cylinder heating be reached. In this case, DHW cylinder qp and heating circuit with mixer tp are heated simultaneously. Installation 7

8 Preparing for installation System example, ID: _00_0 (cont.) Hydraulic installation scheme A /-- --5/ M 50 --/ / / /-- WW --/ KM-BUS V /5-- --/ /3-- KW V KM BUS

9 System example, ID: _00_0 (cont.) Preparing for installation Equipment required Pos. Designation Boiler with Control unit Vila 00, or Viladens 300-T with Vitronic 00, type KOB Virond 00,, Vigas 00-F or Virondens 00-T, -F with Vitronic 00, type KOB 3 Outside temperature sensor ATS 9 Boiler water temperature sensor KTS DHW heating by the boiler qp DHW cylinder (integrated for the Vila, Virond and Virondens -F) qq Cylinder temperature sensor STS qw DHW circulation pump ZP qe Circulation pump for cylinder heating UPSB ep Heating circuit I eq Heating circuit pump, heating circuit A or Divicon tp Heating circuit II tq Extension kit for one heating circuit with mixer M Components: tw Flow temperature sensor M tt Mixer PCB with mixer mor or tq Extension kit for one heating circuit with mixer M Components: tw Mixer PCB and flow temperature sensor tt Mixer mor M te Temperature limiter for an underfloor heating circuit tr Heating circuit pump M and 3-way mixer or Divicon Installation 9

10 Preparing for installation System example, ID: _00_0 (cont.) Pos. Designation Accessories (optional) 5 Two-stage/modulating burner extension (Standard delivery for pos. ) 6 Flue gas temperature sensor AGS 7 Extension EA zw Central fault message (requires external extension EA) ze External hook-up (requires extension EA): External blocking External demand External heating program changeover zr External set value 0 0 V (requires extension EA) zt Vitrol 00A zz Vitrol 300A zu Radio clock receiver zi KM BUS distribur, for several KM BUS subscribers KM BUS subscriber: Extension EA 7 Vitrol 00A zt Vitrol 300A zz Vicom 00 up up Vicom 00, type GSM or zo Vicom 00, type GP ip External extension H5 iq Morised flue gas damper (only for the Vigas 00-F) 0

11 System example, ID: _00_0 (cont.) Preparing for installation Electrical installation scheme V/ 50 Hz Low voltage X 5 40 EA N 0 M ~ A 3 L N M ~ UPSB 3 L N L L N N L LON X 47 7 M ~ ZP M 5 AGS 6 STS KTS 9 67 ATS 3 45 KM BUS V/ 50 Hz A 3 3 N L N L A 57 KM BUS V 64 3 DE3 DE DE A N L P Ö S N L N L N 53 M ~ 40 M 5 M ~ M M S Installation 45 VTS M 5

12 Preparing for installation System example, ID: _00_0 (cont.) Codes Code "00:5" (is set aumatically) "00:6" (is set aumatically) "0:0" (set by the boiler coding card) Group "General" "General" "Boiler" System with one heating circuit without mixer and one heating circuit with mixer, without DHW cylinder or System with one heating circuit without mixer and one heating circuit with mixer, with DHW cylinder Single stage burner operation System example, ID: _00_0 One heating circuit without mixer and two heating circuits with mixer and DHW heating (optional solar DHW heating) DHW cylinder (dual mode) Solar thermal system Function description Applications Heating system with different heat sources and methods of DHW heating One heating circuit without mixer Two heating circuits with 3-way mixer The heating circuits ep/rp/tp and DHW cylinder qp/qr are regulated by boiler heating circuit controller. The heating circuits and DHW cylinder are each supplied by a separate circulation pump eq/ rr/tr and qe. Main components Oil condensing boiler, oil boiler or gas boiler 8 00 kw Heating circuit distribution

13 System example, ID: _00_0 (cont.) Preparing for installation Heating mode The boiler heating circuit controller regulates the boiler water temperature in weather-compensated mode (= flow temperature of the heating circuit without mixer) and the temperature level of the heating circuit with mixer via an extension kit for one heating circuit with mixer. DHW heating without a solar thermal system If the temperature falls below the set DHW temperature at control unit, the burner of boiler starts and circulation pump qe of DHW cylinder qp/qr runs. Within the periods selected at control unit, DHW is heated with or without priority control. In the case of absolute priority control, heating circuit pumps eq/rr/tr are switched off and mixers rt/tt are closed. With modulating priority control of the heating circuits with mixer, heating circuit pumps rr/tr remain on, and mixers rt/tt close far enough enable the boiler water temperature set for cylinder heating be reached. In this case, DHW cylinder qp/qr and heating circuits with mixer rp/tp are heated simultaneously. DHW heating by the solar thermal system Solar circuit pump we starts and DHW cylinder qr is heated up, if the temperature differential between collecr temperature sensor wq and cylinder temperature sensor qt exceeds the start temperature differential. Pump we is spped according the following criteria: The actual temperature drops below the sp temperature differential Exceeding the electronic temperature limit (up 90 C) set in the solar control module (type SM) wz The temperature selected at high limit safety cut-out qz (if installed) is reached Demands for the auxiliary function are met by circulation pump wr. Suppression of reheating of the DHW cylinder by the boiler in conjunction with the solar control module Reheating suppression takes place in two stages. Reheating DHW cylinder qr by boiler is suppressed as soon as DHW cylinder qr is heated by collecrs wp. For this, the set DHW temperature for reheating is reduced by boiler. Suppression remains active for a certain time after solar circuit pump we has been switched off (up max. 4 h). In the case of uninterrupted heating by collecrs wp (> h), boiler will only reheat, if the set DHW temperature (coding address "67") selected at control unit is not achieved. In control unit, coding address "67" defaults a third set DHW temperature (setting range 0 95 C). This value must be below the first set DHW temperature. DHW cylinder qr will only be heated by boiler when this set value is no longer achieved by the solar thermal system. 3 Installation

14 Flow Return Preparing for installation System example, ID: _00_0 (cont.) Hydraulic installation scheme --6/ KM-BUS V /-- A --4/-- M --5/0-- M / / / / / / / KM-BUS KM-BUS WW V V-- --/ / /4- --/ / /5-- --/3-- KW 0 / V KM BUS

15 System example, ID: _00_0 (cont.) Preparing for installation Equipment required Pos. Designation Boiler with Control unit Vila 00 or Viladens 300-T with Vitronic 00, type KOB Virond 00, Vigas 00-F or Virondens 00-T with Vitronic 00, type KOB 3 Outside temperature sensor ATS 9 Boiler water temperature sensor KTS DHW heating by the boiler qp/qr DHW cylinder/dual qq Cylinder temperature sensor STS qw DHW circulation pump ZP qe Circulation pump for cylinder heating UPSB DHW heating by the solar thermal system qt Cylinder temperature sensor SOL qz High limit safety cut-out STB wp Solar collecrs wq Collecr temperature sensor KOL ww Solar-Divicon we Solar circuit pump wr Circulation pump (transfer) wt Aumatic thermostatic mixing valve wz Solar control module, type SM wu Junction box ep Heating circuit I eq Heating circuit pump, heating circuit A or Divicon Installation 5

16 Preparing for installation System example, ID: _00_0 (cont.) Pos. rp/tp rq/tq rw/tw rt/tt rq/tq rw/tw rt/tt te rr/tr Designation Heating circuits II and III Extension kit for one heating circuit with mixer M/M3 Components: Flow temperature sensor M/M3 Mixer PCB with mixer mor or Extension kit for one heating circuit with mixer M/M3 Components: Mixer PCB and flow temperature sensor Mixer mor M/M3 Temperature limiter for an underfloor heating circuit Heating circuit pump M/M3 and 3-way mixer or Divicon Accessories (optional) 5 Two-stage/modulating burner extension (Standard delivery for pos. ) 6 Flue gas temperature sensor AGS 7 Extension EA zw ze zr zt zz zu zi up zo ip iq Central fault message (requires external extension EA) External hook-up (requires extension EA): External blocking External demand External heating program changeover External set value 0 0 V (requires extension EA) Vitrol 00A Vitrol 300A Radio clock receiver KM BUS distribur, for several KM BUS subscribers KM BUS subscriber: Extension EA 7 Vitrol 00A zt Vitrol 300A zz Vicom 00 up Solar control module, type SM wz Vicom 00, type GSM or Vicom 00, type GP External extension H5 Morised flue gas damper (only for the Vigas 00-F) 6

17 System example, ID: _00_0 (cont.) Preparing for installation Electrical installation scheme V/ 50 Hz Low voltage X 5 40 EA N 0 M ~ A 3 L N M ~ UPSB 3 L N L L N N L LON X 47 7 M ~ ZP M 5 AGS 6 STS KTS 9 67 ATS 3 45 KM BUS V/ 50 Hz A 3 3 N L N L A 57 KM BUS V 64 3 DE3 DE DE A N L P Ö S N L N L N M 4 M3 S M ~ M 44 M ~ M 45 Installation VTS M M3 5 7

18 Preparing for installation System example, ID: _00_0 (cont.) 4 40 A N L A 4 0 N L N M ~ SM 6 M3 54 L N 5 M ~ M3 55 VTS M A N L N L 7 M ~ UP 3 STB 6 PWM N L M ~ UP KOL SOL 4 5 Codes Code Group "00:9" "General" (is set aumatically) "00:0" (is set aumatically) "0:0" (set by the boiler coding card) "General" "Boiler" System with one heating circuit without mixer and two heating circuits with mixer, without DHW cylinder or System with one heating circuit without mixer and two heating circuits with mixer, with DHW cylinder Single stage burner operation 8

19 Preparing for installation System example 3, ID: _00_0 Single boiler system: Vigas with one heating circuit with mixer and shunt pump for return temperature raising Size shunt pump 4 approx. 30 % of the maximum boiler flow rate. DHW heating Applications Heating system and DHW heating One heating circuit with 3-way mixer Main components Vigas 00-F (from 7 kw) Vitronic 00, type KOB Shunt pump for raising the return temperature DHW cylinder Function description Heating circuit tp and DHW cylinder qp are regulated by boiler heating circuit controller. The heating circuit and the DHW cylinder are supplied by their individual circulation pumps tr and qe. Thermostat T qt starts the shunt pump if the actual temperature falls below the required minimum return temperature. The flow rate must be reduced by at least 50 % via thermostat T qr if the minimum return temperature is not achieved even with return temperature raising. If the temperature falls below the set DHW temperature at control unit, the burner of boiler starts and circulation pump qe of DHW cylinder qp runs. Within the periods selected at control unit, DHW is heated with or without priority control. In the case of absolute priority control, heating circuit pump tr of the heating circuit is switched off and mixer tt is closed. With modulating priority control of the heating circuit with mixer, heating circuit pump tr remains on, and the mixer tt closes far enough enable the set boiler water temperature for cylinder heating be reached. In this case, DHW cylinder qp and heating circuit with mixer tp are heated simultaneously. Heating mode The boiler heating circuit controller regulates the boiler water temperature in weather-compensated mode (= flow temperature of the heating circuit without mixer) and the temperature level of the heating circuit with mixer via an extension kit for one heating circuit with mixer. Installation 9

20 Preparing for installation System example 3, ID: _00_0 (cont.) Hydraulic installation scheme 5 --5/-- --5/ / M / / KM-BUS-- 5 WW --/ V-- --/ /-- --5/ / / /3-- KW V KM BUS Note: This scheme is a basic example without shut-off valves or safety equipment. This does not replace the local technical engineering task. 0

21 System example 3, ID: _00_0 (cont.) Preparing for installation Equipment required Pos. Designation Boiler with Control unit Vigas 00-F with Vitronic 00, type KOB 3 Outside temperature sensor ATS 4 Shunt pump 9 Boiler water temperature sensor KTS qr Control thermostat T qt Control thermostat T qz Contacr relay DHW heating by the boiler qp DHW cylinder qq Cylinder temperature sensor STS qw DHW circulation pump ZP qe Circulation pump for cylinder heating UPSB tp Heating circuit tq Extension kit for one heating circuit with mixer M Components: tw Flow temperature sensor M and tt Mixer PCB with mixer mor or tq Extension kit for one heating circuit with mixer M Components: tw Mixer PCB and flow temperature sensor tt Mixer mor M te Temperature limiter for an underfloor heating circuit tr Heating circuit pump M and 3-way mixer or Divicon Installation

22 Preparing for installation System example 3, ID: _00_0 (cont.) Pos. Designation Accessories (optional) 5 Two-stage/modulating burner extension (Standard delivery for pos. ) 6 Flue gas temperature sensor AGS 7 Extension EA wi Resistance 85 Ω zw Central fault message (requires external extension EA) ze External hook-up (requires extension EA): External blocking External demand External heating program changeover zr External set value 0 0 V (requires extension EA) zt Vitrol 00A zz Vitrol 300A zu Radio clock receiver zi KM BUS distribur, for several KM BUS subscribers KM BUS subscriber: Extension EA 7 Vitrol 00A zt Vitrol 300A zz Vicom 00 up up Vicom 00, type GSM or zo Vicom 00, type GP ip External extension H5 iq Mor-controlled flue gas damper

23 System example 3, ID: _00_0 (cont.) Preparing for installation Electrical installation scheme V/ 50 Hz Low voltage X EA N M ~ UPSB 3 L N L L N N L N L LON X 47 7 M ~ ZP M 5 AGS 6 STS KTS 9 67 ATS 3 45 KM BUS V/ 50 Hz A 3 3 N L N L A 57 KM BUS V 64 3 DE3 DE DE A 0 3 N L P Ö S N L N L 6 40 M 5 53 S M ~ BP 4 M ~ T M 5 54 Installation N 5 M ~ M Ω 3 VTS M T 5 4 3

24 Preparing for installation System example 3, ID: _00_0 (cont.) Codes Code Group Set "00:3" "General" System with one heating circuit with mixer, without DHW cylinder or Set "00:4" "General" System with one heating circuit with mixer, with DHW cylinder "0:" (set by the boiler coding card) "Boiler" Two-stage burner operation System example 4, ID: _00_0 Single boiler system: Vigas with one heating circuit with mixer, distribution pump and low pressure distribur Function description Applications Heating system and DHW heating One heating circuit with 3-way mixer Main components Vigas 00-F (from 7 kw) Vitronic 00, type KOB Distribution pump and low pressure distribur DHW cylinder Heating circuit tp and DHW cylinder qp are regulated by boiler heating circuit controller. The heating circuit and the DHW cylinder are supplied by their individual circulation pumps tr and qe. Temperature sensor T qr reduces or closes mixer tt if the required minimum return temperature is not achieved. Size distribution pump 4 0 % of the tal heating system flow rate. Observe the corresponding pressure drop of the respective heat sources when sizing pumps. DHW heating If the temperature falls below the set DHW temperature at control unit, the burner of boiler starts and circulation pump qe of DHW cylinder qp runs. 4

25 System example 4, ID: _00_0 (cont.) Preparing for installation Within the periods selected at control unit, DHW is heated with or without priority control. In the case of absolute priority control, heating circuit pump tr of the heating circuit is switched off and mixer tt is closed. With modulating priority control of the heating circuit with mixer, heating circuit pump tr remains on, and the mixer tt closes far enough enable the set boiler water temperature for cylinder heating be reached. In this case, DHW cylinder qp and heating circuit with mixer tp are heated simultaneously. Heating mode The boiler heating circuit controller regulates the boiler water temperature in weather-compensated mode (= flow temperature of the heating circuit without mixer) and the temperature level of the heating circuit with mixer via an extension kit for one heating circuit with mixer. Installation 5

26 Preparing for installation System example 4, ID: _00_0 (cont.) Hydraulic installation scheme 5 --5/-- --5/ / M / / /-- WW --/ KM-BUS V-- --/ / / /3-- KW V KM BUS Note: This scheme is a basic example without shut-off valves or safety equipment. This does not replace the local technical engineering task. 6

27 System example 4, ID: _00_0 (cont.) Preparing for installation Equipment required Pos. Designation Boiler with Control unit Vigas 00-F with Vitronic 00, type KOB 3 Outside temperature sensor ATS 4 Distribution pump 9 Boiler water temperature sensor KTS qr Control thermostat T qz Contacr relay DHW heating by the boiler qp DHW cylinder qq Cylinder temperature sensor STS qw DHW circulation pump ZP qe Circulation pump for cylinder heating UPSB tp Heating circuit tq Extension kit for one heating circuit with mixer M Components: tw Flow temperature sensor M and tt Mixer PCB with mixer mor or tq Extension kit for one heating circuit with mixer M Components: tw Mixer PCB and flow temperature sensor tt Mixer mor M te Temperature limiter for an underfloor heating circuit tr Heating circuit pump M and 3-way mixer or Divicon Installation 7

28 Preparing for installation System example 4, ID: _00_0 (cont.) Pos. Designation Accessories (optional) 5 Two-stage/modulating burner extension (Standard delivery for pos. ) 6 Flue gas temperature sensor AGS 7 Extension EA wi Resistance 85 Ω zw Central fault message (requires external extension EA) ze External hook-up (requires extension EA): External blocking External demand External heating program changeover zr External set value 0 0 V (requires extension EA) zt Vitrol 00A zz Vitrol 300A zu Radio clock receiver zi KM BUS distribur, for several KM BUS subscribers KM BUS subscriber: Extension EA 7 Vitrol 00A zt Vitrol 300A zz Vicom 00 up up Vicom 00, type GSM or zo Vicom 00, type GP ip External extension H5 iq Mor-controlled flue gas damper 8

29 System example 4, ID: _00_0 (cont.) Preparing for installation Electrical installation scheme V/ 50 Hz Low voltage X EA N M ~ UPSB 3 L N L L N N L N L LON X 47 7 M ~ ZP M 5 AGS 6 STS KTS 9 67 ATS 3 45 KM BUS V/ 50 Hz A 3 3 N L N L A 57 KM BUS V 64 3 DE3 DE DE A 0 3 N L P Ö S N L N L 6 40 M 5 53 S M ~ VP 4 M ~ M 54 Installation N 5 M ~ M Ω 3 VTS M T 5 4 9

30 Preparing for installation System example 4, ID: _00_0 (cont.) Codes Code Group Set "00:3" "General" System with one heating circuit with mixer, without DHW cylinder or Set "00:4" "General" System with one heating circuit with mixer, with DHW cylinder "0:" (set by the boiler coding card) "Boiler" Two-stage burner operation 30

31 Installation sequence Overview of electrical connections For opening the control unit, see page 53. The following illustrations show the botm half of the control unit as viewed from the back. Type KOB X X Installation 3

32 Installation sequence Overview of electrical connections (cont.) Type KOB 4545 A C X X A Temperature controller 30 V~ plugs sö Heating circuit pump (heating circuit A) sa Circulation pump for cylinder heating (accessory) sk DHW circulation pump (on site) fö Power supply fa Burner lh Power supply connection of accessories X External burner start (stage ) Low voltage plugs! Outside temperature sensor Boiler water temperature sensor % Cylinder temperature sensor ) Buffer temperature sensor (accessory) ag Flue gas temperature sensor (accessories) 3

33 Installation sequence Overview of electrical connections (cont.) avg KM BUS subscriber (accessory) a:a Two-stage/modulating burner extension (part of the standard boiler delivery) When connecting external switching contacts or components the safety LV of the control unit, the safety requirements of protection class II, i.e. 8.0 mm air gap/creeping distance or.0 mm insulation thickness from 'live' components must be observed. For all on-site components (incl. PC/ lapps), ensure safe electrical separation EN or IEC 65. Inserting cables and applying strain relief Blank off unnecessary knockouts in the lower part of the control unit with cable grommets (not cut out). Cable without moulded cable entry Installation Cable with moulded cable entry

34 Installation sequence Inserting the boiler coding card Only use the boiler coding card included with the boiler product documentation Insert the boiler coding card through the recess in the cover in slot "X7". Changing the high limit safety cut-out setting (if required) In the delivered condition, the high limit safety cut-out is set 0 C and can be adjusted 00 C. Note The temperature value cannot be reset. When adjusting the temperature 00 ºC, never adjust the thermostat above 75 ºC. 34

35 Changing the high limit safety cut-out setting (cont.) Installation sequence Type KOB. A C B A EGO slotted screw B JUMO slotted screw Installation 35

36 Installation sequence Changing the high limit safety cut-out setting (cont.) Type KOB B A C. A EGO slotted screw 36 B JUMO slotted screw

37 Installation sequence Changing the thermostat setting (if required) In the delivered condition, the thermostat is set 75 C and can be adjusted 87 C/95 C. Note Never set the thermostat above 75 ºC if the high limit safety cut-out has been set 00 ºC. Please note! Excessive DHW temperatures can damage the DHW cylinder. If the system is operated in conjunction with a DHW cylinder, ensure that the maximum permissible DHW temperature is not exceeded. If necessary, install suitable safety equipment for this purpose. Type KOB. Remove rotary selecr "R".. Using a pair of pointed pliers, break off the cams between "75" and "90" or "95" from the sp disc, as shown in the diagram. 3. Install rotary selecr "R" so that the mark is between "75" and "90" or "95". Turn rotary selecr "R" fully clockwise. Installation

38 Installation sequence Changing the thermostat setting (if required) (cont.) Type KOB C. Connecting sensors A B C D E A Buffer temperature sensor B Flue gas temperature sensor C Cylinder temperature sensor 38 D Boiler water temperature sensor E Outside temperature sensor

39 Installation sequence Connecting sensors (cont.) Installation point for outside temperature sensor North or north-western wall,.5 m above ground level; in multisrey buildings, in the upper half of the second floor Not above windows, doors or ventilation outlets Not immediately below balconies or gutters Never render over Outside temperature sensor connection -core lead, up 35 m long with a crosssection of.5 mm Connecting pumps Available pump connections Installation sö Heating circuit pump A sa Circulation pump for cylinder heating sk DHW circulation pump Pumps 30 V~ M ~ A Rated current 4() A~ Recommended connecting cable H05VV-F3G 0.75 mm or H05RN-F3G 0.75 mm B A Pump B To the control unit 39

40 Installation sequence Connecting pumps (cont.) Pumps 400 V~ N A L L L L3 N PE For controlling the contacr Rated current 4() A~ Recommended connecting cable H05VV-F3G 0.75 mm or H05RN-F3G 0.75 mm B M 3~ A Contacr B Pump External burner start This function can be achieved with plug "X". Please note! 'Live' contacts lead short circuits or phase failure. The external connection must be floating. A Connect the floating contact. If the contact is closed, the first burner stage is started and the boiler water temperature is regulated by the thermostat. Rated voltage 30 V~ Rated current 6 A~ Recommended connecting cable H05VV-F3G 0.75 mm X A External start (floating contact) 40

41 Installation sequence External burner start (cont.) Provisional burner operation Insert the jumper between terminals and of plug "X". The first burner stage is on and the control thermostat will limit the boiler water temperature. External demand This function can be achieved with plug lh or extension EA (accessory, see page 47). Connection! Please note 'Live' contacts lead short circuits or phase failure. The external connection must be floating. Installation 4

42 Installation sequence External demand (cont.) Plug lh Extension EA A [{A DE [{S DE [{D DE B N? L lh B A A Floating contact B Plug lh Rated voltage 30 V~ Rated current 0 ma~ Recom. connecting cable H05VV-F3G 0.75 mm A Floating contact B Extension EA When the contact is closed, burner operation is load-dependent. The boiler water is heated the set value selected in the coding address "9b". The boiler water temperature is limited by this set value and the electronic maximum limit (coding address "06") in the "Boiler" group. Codes Plug lh Extension EA "40:" in the "General" group Set "3A", "3b" or "3C" in the "General" group. Coding address "d7" in the "Heating circuit" group: Effect of the function on the relevant heating circuit pump Coding address "5F" in the "DHW" group: Effect of function on circulation pump for cylinder heating External blocking This function can be achieved with plug lh or extension EA (accessory, see page 47). 4

43 Installation sequence External blocking (cont.) Connection! Please note 'Live' contacts lead short circuits or phase failure. The external connection must be floating. Plug lh Extension EA N? L lh A [{A DE [{S DE [{D DE B Installation B A A Floating contact B Plug lh Rated voltage 30 V~ Rated current 0 ma~ Recom. connecting cable H05VV-F3G 0.75 mm A Floating contact B Extension EA When the contact is closed, the burner and the heating circuit pumps are switched off, and the mixers are closed. Please note! During the block, there is no frost protection of the heating system. 43

44 Installation sequence External blocking (cont.) Codes Plug lh Extension EA "40:" in the "General" group Set "3A", "3b" or "3C" in the "General" group 3 or 4. Coding address "d6" in the "Heating circuit" group: Effect of the function on the relevant heating circuit pump Coding address "5E" in the "DHW" group: Effect of function on circulation pump for cylinder heating Connecting a pressure-jet oil/gas burner The burner cable is included in the standard delivery of the boiler. Connect the burner in accordance with DIN 479 [or local regulations]. Max. power consumption 4 () A. 44

45 Installation sequence Connecting a pressure-jet oil/gas burner (cont.) L STB 4 L N T T S3 B4 PE N 4 TR Störung H BZ L N T T S3 B4 Terminal codes L Phase via high limit safety cuut the burner PE Earth conducr burner N Neutral conducr burner T, T Control chain S3 Burner fault B4 Hours run meter ~ Signal pass direction: Control unit burner Signal pass direction: Burner control unit Equipment codes STB Control unit high limit safety cuut TR Control unit thermostat H Burner fault signal BZ Hours run meter Installation A To the control unit B To the burner Burner without plug Install the mating plug from Viessmann or from the burner manufacturer; connect the burner cable. Extension of two-stage/mod. burners, part no This function extension is supplied with the boiler. Max. power consumption Two-stage: (0.5) A Modulating: 0. (0.05) A Observe coding addresses "0", "0" "3", "5" "8", "A", "6" and "9" in the "Boiler" group in code. 45

46 Installation sequence Connecting a pressure-jet oil/gas burner (cont.) A BN BU BK K K C K K BN BK BU B Terminal codes T6, T7, T8 Control chain "Burner stage or modulation controller" (for two-stage operation via two-point controller; for modulating operation via three-point controller) T6 From the burner T7 Mod. burner closed T8 Mod. burner open/stage on ~ Signal pass direction: Control unit burner Signal pass direction: Burner control unit Colour coding DIN IEC BK black BN brown BU blue A To the control unit B To the burner C Junction box with relay K and K Connecting an atmospheric burner The burner cable is included in the standard delivery of the boiler. Connect the burner in accordance with DIN 479 [or local regulations]. 46

47 Installation sequence Connecting an atmospheric burner (cont.) A 4 Terminal codes T, T Control chain S3 Burner fault B4 Hours run meter L N T T S3 B4 B4 S3T T N L Installation 4 B A To the control unit B To the burner control unit Extension of two-stage burners, part no The function extension is supplied with the boiler. Coding addresses "0", "0" "5", "6" and "9" in the "Boiler" group in code. 47

48 Installation sequence Connecting an atmospheric burner (cont.) A Colour coding DIN IEC BK black BN brown BU blue BN BU BK C K K K K BU BK BN A To the control unit B To the burner control unit C Junction box with relay K and K 48

49 Installation sequence Power supply Directives Regulations Danger Incorrectly executed electrical installations can lead injury from electrical current and result in equipment damage. Make the power supply connection and implement all protective measures (e.g. RCD circuit) in accordance with the following regulations: IEC VDE regulations Connection requirements specified by your local power supply utility Protect the power cable with max. 6 A Danger The absence of component earthing in the system can lead serious injury from electrical current if an electrical fault occurs. Connect the appliance and pipework the equipotential bonding of the house in question. Mains isolar requirements (if necessary) For combustion equipment DIN VDE 06, the mains isolar installed on site must comply with the requirements of DIN VDE 06 "section 6" [or local regulations]. Fit the mains isolar outside the installation room; it must be able separate all non-earthed conducrs simultaneously with a gap of 3 mm at least. We additionally recommend installing an AC/DC-sensitive RCD (RCD class B ) for DC (fault) currents that can occur with energy-efficient equipment. If no main isolar is installed, all nonearthed cables must be isolated from the mains by the upstream circuit breaker with at least 3 mm contact separation. Replacing the power cable Three-core cable selected from the following options: H05VV-F3G 0.75 mm H05RN-F3G 0.75 mm Installation 49

50 Installation sequence Power supply (cont.) Power supply for several accessories Power supply for all accessories via the control unit A B C D A A A 40 E Accessories in some cases with a direct power supply A B C D A A A 40 E A Boiler control unit B Extension kit for heating circuit with mixer M C Extension kit for heating circuit with mixer M3 fö A Power supply lh Power supply for accessory in the boiler control unit avg KM BUS If the current flowing the actuars connected (e.g. circulation pumps) is higher than the safety level of the accessory, the output concerned should only be used control an on-site relay. D Extension EA and/or solar control module, type SM E ON/OFF switch If the max. tal system current is exceeded, connect one or more accessories via an ON/OFF switch directly the mains supply. Note These accessories cannot then be isolated with the control unit ON/OFF switch. 50

51 Installation sequence Power supply (cont.) Control unit power supply connection L PE N. Check whether the power cable the control unit has appropriate fuse protection.. Connect the power cable inside the wiring chamber. BU GNYE BN N L 40 Danger Incorrect wire allocation can cause severe injury and damage the appliance. Take care not interchange wires "L" and "N": L brown N blue PE green/yellow 3. Insert plug fö in the control unit. Installation A Power supply 30 V~ B Fuse (max. 6 A~) C Mains isolar, two-pole (on-site) D Junction box (on site) Colour coding DIN IEC BN brown BU blue GNYE green/yellow Fitting the p part of the control unit for type KOB! Please note To prevent damage the PCB, switch off the control unit power supply. 5

52 Installation sequence Fitting the p part of the control unit for (cont.)

53 Installation sequence Opening the control unit Type KOB 3... Installation 53

54 Installation sequence Opening the control unit (cont.) Type KOB 54

55 Commissioning Changing the language Note At the commissioning stage, the display is in German (default setting) Extended menu:. å. "Settings" 3. "Language" Sprache Deutsch Cesky Dansk English Wählen mit Ø DE CZ DK GB 4. Set the required language with /. ç Setting the date and time During commissioning, or after prolonged time out of use, the time and date need be reset. Extended menu:. "Settings" 3. "Time / Date" 4. Set current time and date.. å Testing the high limit safety cut-out Type KOB. Hold down the "test" key (position "h") until the burner shuts down: Thermostat "R" is bridged. If the boiler water temperature reaches the safety temperature, the high limit safety cut-out shuts the burner down.. Release the "TEST" key. 3. Wait until the boiler water temperature has dropped approx. 5 0 K below the selected safety temperature. 4. Reset the high limit safety cut-out by pressing the reset butn. Service 55

56 Commissioning Testing the high limit safety cut-out (cont.) Type KOB 3. Switch on the heating system. Thermostat "R" is bridged. If the boiler water temperature reaches the safety temperature, the high limit safety cut-out A shuts the burner down. X 4. Shut down the heating system Remove jumper C. C 6. Switch on the heating system. 7. Wait until the boiler water temperature has dropped approx. 5 0 K below the selected safety temperature. A B C 8. Reset the high limit safety cut-out by pressing the reset butn.. Shut down the heating system.. Insert jumper C at test terminals B. Matching coding addresses Subject the equipment level, the control unit must be matched the system. For steps and overviews on codes, see chapter "Codes". 56

57 Commissioning Checking outputs (actuars) and sensors Testing a relay. Press OK and å simultaneously for approx. 4 s.. "Actuar test" The following relay outputs can be controlled subject system design: Display Explanation "All actuars" Off All actuars have been switched off. "Base load" On The burner is operated at minimum output. "Burner" ON Single stage burner. "Burner stage " ON Output for burner stage is switched on. "Full load" ON The burner is operated at maximum output. "Burner stages and " ON Two-stage burner. "Burner modulation" Open Modulating burner. "Burner modulation" Neutral Modulating burner. "Burner modulation" Closed Modulating burner. "Cylinder prim pump" ON Output for circulation pump for cylinder heating enabled. "DHW circ pump" ON Output for DHW circulation pump enabled. "Central fault mess." ON In conjunction with extension EA. "Htg circ pump HC" ON Output for heating circuit pump enabled. "Htg circ pump HC" ON Output for heating circuit pump enabled (extension heating circuit with mixer). "Mixer HC" Open Output for "Mixer open" enabled (extension heating circuit with mixer). "Mixer HC" Closed Output for "Mixer closed" enabled (extension heating circuit with mixer). "Htg circ pump HC3" ON Output for heating circuit pump enabled (extension heating circuit with mixer). "Mixer HC3" Open Output for "Mixer open" enabled (extension heating circuit with mixer). "Mixer HC3" Closed Output for "Mixer open" enabled (extension heating circuit with mixer). "EA output " ON Contact "P - S" on plug abj for extension EA closed. "Solar circuit pump" ON Output for solar circuit pump sf at solar control module, type SM enabled. "Solar circ pmp min" ON Output for solar circuit pump sf at solar control module, type SM switched minimum speed. Service 57

58 Commissioning Checking outputs (actuars) and sensors (cont.) Display Explanation "Solar circ pmp max" ON Output for solar circuit pump sf at solar control module, type SM switched maximum speed. "SM output ss" ON Output ss at solar control module, type SM enabled. Checking sensors. Press OK and å simultaneously for approx. 4 s.. "Diagnosis" 3. Select group (see page 64). 4. Scan actual temperature of the relevant sensor. Adjusting heating curves The heating curves illustrate the relationship between the outside temperature and the boiler water or flow temperature. To put it simply: The lower the outside temperature, the higher the boiler water or flow temperature. The room temperature, again, depends on the boiler water or the flow temperature. Settings in the delivered condition: Slope =.4 Level = 0 58

59 Commissioning Adjusting heating curves (cont.) Slope Boiler water or flow temperature in C Set room temperature in C C B A Outside temperature in C Example of outside temperature 4 C A Underfloor heating system, slope B Low temperature heating system, slope C Heating systems with a boiler water temperature in excess of 75 C, slope greater than.6 Selecting the set room temperature Service Individually adjustable for each heating circuit. The heating curve is offset along the axis of the set room temperature. When the heating circuit pump logic function has been enabled, it modifies the starting and spping characteristics of the heating circuit pump. 59

60 Commissioning Adjusting heating curves (cont.) Standard set room temperature Reduced set room temperature 0 A 6 C 0 C 0 A 4 C C D 6 0 B -0 C E C D C B -0 C E Changing the standard room temperature from 0 6 C A Boiler water temperature or flow temperature in C B Outside temperature in C C Set room temperature in C D Heating circuit pump OFF E Heating circuit pump ON Changing the standard set room temperature Operating instructions Changing the reduced room temperature from 3 4 C A Boiler water temperature or flow temperature in C B Outside temperature in C C Set room temperature in C D Heating circuit pump OFF E Heating circuit pump ON Changing the reduced set room temperature Operating instructions Changing the slope and level Individually adjustable for each heating circuit. 60

61 Commissioning Adjusting heating curves (cont.) Extended menu:. å Boiler water or flow temperature in C A B +0-0 Outside temperature in C "Heating" 3. Select heating circuit. 4. "Heating curve" 5. "Slope" or "Level" 6. Select heating curve according the system requirements. A Changing the slope B Changing the level (vertical parallel offset of the heating curve) Example: Heating curve setting with slope.5: Heating curve HC 00 C 3 C 4 C 55 C 68 C 8 C Slope.5 Change with ( Connecting the control unit the LON Service The LON communication module (accessory) must be plugged in. Installation instructions LON communication module Note The data transfer via the LON system can take several minutes. 6

62 Commissioning Connecting the control unit the LON (cont.) Single boiler system with Vitronic 00-H and Vicom 00 (example) Set the LON subscriber numbers and further functions via code (see the following table). Note In the LON system, the same subscriber number cannot be allocated twice. Only one Vitronic may be programmed as fault manager. Boiler control unit Vitronic 00-H Vitronic 00-H Vicom LON LON LON Subscriber no. Code "77:" Control unit is fault manager Code "79:" Control unit transmits the time Code "7b:" Control unit transmits outside temperature Set code "97:" Viessmann system number Code "98:" LON subscriber fault moniring Code "9C:0" Subscriber no. 0 Code "77:0" Subscriber no. Set code "77:" Subscriber no. 99 Control unit is not Control unit is not Device is fault fault manager fault manager manager Code "79:0" Code "79:0" The control unit The control unit Device receives the time receives the time receives the Set code "8:3" Set code "8:3" time Control unit receives Control unit receives the outside temperaturture the outside tempera- Set code "97:" Set code "97:" Viessmann system Viessmann system number number Code "98:" Code "98:" LON subscriber fault LON subscriber fault moniring moniring Code "9C:0" Code "9C:0" Carrying out a LON subscriber check Communication with the system devices connected the fault manager is tested by means of a subscriber check. Preconditions: The control unit must be programmed as fault manager (code "79:"). The LON subscriber number must be programmed in all control units. The LON subscriber list in the fault manager must be up date. 6

63 Commissioning Connecting the control unit the LON (cont.) Performing the subscriber check:. Press OK and å simultaneously for approx. 4 s.. "Service functions" 3. "Subscriber check" 4. Select subscriber (e.g. subscriber 0). The subscriber check for the selected subscriber is initiated. Successfully tested subscribers are designated with "OK". Unsuccessfully tested subscribers are designated with "Not OK". Note To carry out a new subscriber check, create a new subscriber list with "Delete list?" Note The display of the relevant subscriber during the subscriber check shows the subscriber no. and "Wink" for approx. min. Service 63

64 Service scans Calling up the service menu Press OK and å simultaneously for approx. 4 s. Service menu overview Service Diagnosis Actuar test Coding level Coding level Fault hisry Service functions Terminate service? General Heating circuit HC Heating circuit HC Heating circuit 3 HC3 DHW Solar Brief scan Reset data Subscriber check Service PIN Vicom PIN input Service reset Scanning operating data Operating data can be scanned in six areas (see "Diagnosis" in the overview "Service menu"). Operating data on heating circuits with mixers and solar can only be scanned if the components are installed in the system. For further information on operating data, see chapter "Brief scan". Note "- - -" appears on the display if a sensor that has been scanned is faulty. Calling up operating data. Press OK and å simultaneously for approx. 4 s. 3. Select required group, e.g. "General".. "Diagnosis" Resetting operating data Saved operating data (e.g. hours run) can be reset The value "Adjusted outside temp" is reset the actual value.

65 Service scans Scanning operating data (cont.). Press OK and å simultaneously for approx. 4 s.. "Diagnosis" 3. "Reset data" 4. Select required value (e.g. "Burner") or "All details". Brief scan In the brief scan, you can scan temperatures, software versions and connected components, for example.. Press OK and å simultaneously for approx. 4 s.. "Diagnosis" 3. "Brief scan". 4. Press OK. The display shows 9 lines with 6 fields each. Diagnosis brief scan : : 3: 4: 0 0 A A 0 Select with 0 A Ø For an explanation of the relevant values in the individual lines, see the following table: Line (brief Field scan) : System schemes 0 0 Control unit software version Programming unit software version : Burner type 0 0 Appliance identification ZE-ID 0: Single stage : Twostage : Modulating 3: 0 0 Number of KM BUS subscribers Software version Solar control module 4: Service 65

66 Service scans Brief scan (cont.) Line (brief Field scan) : Software version, extension EA 6: : Subnet address/system number Node address 0 0 8: SNVT config. 9: Remote control 0: none : Vitrol 00A : Vitrol 300A or Vihome 300 Software version Communic. coproc. Software version Neuron Chip Number of LON subscribers Heating circuit HC Heating circuit HC Heating circuit HC3 Software version Remote control Remote control 0: none : Vitrol 00A : Vitrol 300A or Vihome 300 Software version Remote control 0: no remote control Remote control 0: none : Vitrol 00A : Vitrol 300A or Vihome 300 0: : 0 0 Software version extension kit for heating circuit with mixer 0 Software version extension kit for heating circuit with mixer 0 Software version Remote control 0: no remote control 66

67 Service scans Scanning and resetting the "Service" display When the limits specified in the "Boiler" group have been reached via coding addresses "F", "" and "3", "Service" is displayed and flashes. Note Set code "4:" and then code "4:0" in the "Boiler" group if a service is carried out before "Service" is displayed. The selected service parameters for hours run and intervals are reset 0. Acknowledging a service Press OK acknowledge a service message. Note The service message is transferred the menu. An acknowledged service message that was not reset reappears the following Monday. After a service has been carried out (reset service). Reset code "4:" "4:0" in the "Boiler" group. Note If coding address "4" is not reset, "Service" will be displayed again on the following Monday.. Press OK and å simultaneously for approx. 4 s. 3. "Service functions" 4. "Service reset" Note The selected service parameters for hours run and time interval restart at 0. Calling up acknowledged maintenance messages Extended menu:.. "Service" Service 67

68 Troubleshooting Fault display In the event of a fault, the red fault display flashes at the control unit. "Fault" is displayed and flashes. The fault code is displayed with OK. Note If a central fault message facility is connected extension EA (accessory), this is started. For an explanation of the fault code, see chapter "Fault codes". For some faults, the type of fault is also displayed in plain text. Acknowledging a fault Follow the instructions on the display. Note The fault message is transferred the menu. A fault messaging facility, if connected, will be switched off. If an acknowledged fault is not remedied, the fault message will be re-displayed the following day and the fault message facility restarted. Calling up acknowledged fault messages Extended menu:.. "Fault" Calling up fault codes from the fault memory (fault hisry) The 0 most recent faults (including those remedied) are saved and can be called up. Faults are sorted by date.. Press OK and å simultaneously for approx. 4 s.. "Fault hisry" 3. "Display?" Fault codes Displayed fault code System characteristics Cause 0F Control mode Service "0F" is only displayed in the fault hisry Measures Service required Note After servicing, set coding address "4:0" 0 Activates at 0 C outside temperature Short circuit, outside temperature sensor Check the outside temperature sensor (see page 38) 68

69 Troubleshooting Fault display (cont.) Displayed System characteristics fault code 8 Activates at 0 C outside temperature. 30 With DHW cylinder: Circulation pump for cylinder heating on, boiler is maintained at set cylinder temperature. Without DHW cylinder: Boiler is regulated by the thermostat. 38 With DHW cylinder: Circulation pump for cylinder heating on, boiler is maintained at set cylinder temperature. Without DHW cylinder: Boiler is regulated by the thermostat. Cause Lead break, outside temperature sensor Short circuit, boiler water temperature sensor Lead break, boiler water temperature sensor 40 Mixer is closed. Short circuit, flow temperature sensor, heating circuit (with mixer) 44 Mixer is closed. Short circuit, flow temperature sensor, heating circuit 3 (with mixer) 48 Mixer is closed. Lead break, flow temperature sensor, heating circuit (with mixer) 4C Mixer is closed. Lead break, flow temperature sensor, heating circuit 3 (with mixer) Measures Check outside temperature sensor (see page 38) Check the boiler water temperature sensor (see page 36) Check boiler water temperature sensor (see page 36) Check the flow temperature sensor (see page 36) Check the flow temperature sensor (see page 36) Check the flow temperature sensor (see page 36) Check the flow temperature sensor (see page 36) Service 69

70 Troubleshooting Fault display (cont.) Displayed fault code System characteristics Cause 50 Circulation pump for cylinder heating on: Set cylinder temperature = set boiler water temperature; priority is cancelled. 5 No heating of heating water buffer cylinder. sor 58 Circulation pump for cylinder heating on: Set cylinder temperature = set boiler water temperature; priority is cancelled. 5A No heating of heating water buffer cylinder. Short circuit, cylinder temperature sensor Short circuit, buffer temperature sen- Lead break, cylinder temperature sensor Lead break, buffer temperature sensor 90 Control mode. Short circuit, temperature sensor /, connection at solar control module 9 Control mode. Short circuit, temperature sensor aö, connection at solar control module 9 No solar DHW heating. Short circuit, collecr temperature sensor, connection of temperature sensor & at solar control module or sensor at S of the Visolic. Measures Check the cylinder temperature sensor (see page 36) Check buffer temperature sensor (see page 36) Check the cylinder temperature sensor (see page 36) Check buffer temperature sensor (see page 36) Check temperature sensor / (see separate installation and service instructions) Check temperature sensor aö (see separate installation and service instructions) Check sensor at the solar control unit (see separate installation and service instructions) 70

71 Troubleshooting Fault display (cont.) Displayed System characteristics Cause Measures fault code 93 Control mode. Temperature sensor short circuit, connection at S3 of the Visolic Check sensor at the solar control unit (see separate installation and service instructions) 94 No solar DHW heating. Cylinder temperature sensor short circuit connection at S of the Visolic 98 Control mode. Lead break, temperature sensor /, connection at solar control module 99 Control mode. Lead break, temperature sensor aö, connection at solar control module 9A No solar DHW heating. Lead break, collecr temperature sensor, connection of temperature sensor & at solar control module or sensor at S of the Visolic 9b Control mode. Break, temperature sensor, connection at S3 of the Visolic 9C No solar DHW heating. Break, cylinder temperature sensor, connection at S of the Visolic Check sensor at the solar control unit (see separate installation and service instructions) Check temperature sensor / (see separate installation and service instructions) Check temperature sensor aö (see separate installation and service instructions) Check sensor at the solar control unit (see separate installation and service instructions) Check sensor at the solar control unit (see separate installation and service instructions) Check sensor at the solar control unit (see separate installation and service instructions) Service 7

72 Troubleshooting Fault display (cont.) Displayed System characteristics Cause Measures fault code 9E Control mode. No flow rate in solar circuit or flow rate o low, or temperature limiter has responded Check solar circuit. Acknowledge fault message (see separate installation and service instructions) 9F Control mode. Solar control module or Visolic faulty. Check solar control unit (see separate installation and service instructions) Displayed if a fault occurs at these devices that has no fault code in the Vitronic b0 Control mode. Short circuit, flue gas temperature sensor Check the flue gas temperature sensor (see page 38) b Control mode. Communication error, programming unit Check connections and replace the programming unit if required b5 Control mode. Internal fault Check correct insertion of PCB (see parts list) b7 Boiler is regulated by the thermostat. Boiler coding card faulty Plug in or replace the boiler coding card (see page 34) b8 Control mode. Lead break, flue gas temperature sensor Check the flue gas temperature sensor (see page 38). Without flue gas temperature sensor: Set code "F:0" in the "Boiler" group b9 Control mode. Internal fault Acknowledge fault, repeat data input ba Mixer of heating circuit continues regulate. Communication error extension kit for heating circuit with mixer Check connections and rotary selecr adjustment (see page 4) 7

73 Troubleshooting Fault display (cont.) Displayed fault code bb bc bd be bf System characteristics Mixer of heating circuit 3 continues regulate. Control mode without remote control. Control mode without remote control. Control mode without remote control. Control mode. No communication via LON. Cause Communication error extension kit for heating circuit with mixer Communication error, remote control Vitrol heating circuit (without mixer) Communication error, remote control Vitrol heating circuit (with mixer) Communication error, remote control Vitrol heating circuit 3 (with mixer) Incorrect LON communication module C Control mode. Communication error extension EA C Control mode. Lead break, KM BUS solar control module or Visolic Measures Check connections and rotary selecr adjustment (see page 4) Check connections, cable (see separate installation and service instructions) and coding address "A0" in the "Heating circuit..." group Check connections for cable (see separate installation and service instructions) and coding address "A0" in the "Heating circuit..." group Check connections for cable (see separate installation and service instructions) and coding address "A0" in the "Heating circuit..." group Replace LON communication module Check connections (see page 47). Without extension EA: Set code "35:0" in the "General" group Check KM BUS cable and device. Without solar control unit: Set code "54:0" in the "General" group Service 73

74 Troubleshooting Fault display (cont.) Displayed fault code System characteristics Cause Cd Control mode. Vicom 00 communication fault CF 74 Control mode. No communication via LON. Communication fault, communication module LON of control unit Measures Check connections and Vicom 00 (see separate installation and service instructions). Without Vicom 00: Set code "95:0" in the "General" group Check LON communication module and replace if required d Boiler cools down. Burner fault Check the burner d6 Control mode. Input DE at extension EA reports a fault Remove fault at appliance concerned d7 Control mode. Input DE at extension EA reports a fault d8 Control mode. Input DE3 at extension EA reports a fault da db dc dd Control mode without room influence. Control mode without room influence. Control mode without room influence. Control mode without room influence. Short circuit, room temperature sensor, heating circuit (without mixer) Short circuit, room temperature sensor, heating circuit (with mixer) Short circuit, room temperature sensor, heating circuit 3 (with mixer) Lead break, room temperature sensor, heating circuit (without mixer) Remove fault at appliance concerned Remove fault at appliance concerned Check the room temperature sensor (see page 36) Check the room temperature sensor (see page 36) Check the room temperature sensor (see page 36) Check room temperature sensor (see page 36) and adjustment of the remote control (see separate installation and service instructions)

75 Troubleshooting Fault display (cont.) Displayed fault code de df System characteristics Control mode without room influence. Control mode without room influence. Cause Lead break, room temperature sensor, heating circuit (with mixer) Lead break, room temperature sensor, heating circuit 3 (with mixer) E0 Control mode. Fault external LON subscriber Measures Check room temperature sensor (see page 36) and adjustment of the remote control (see separate installation and service instructions) Check room temperature sensor (see page 36) and adjustment of the remote control (see separate installation and service instructions) Check connections and LON subscribers Faults that are not displayed at the programming unit Boiler cold, burner does not start Enable emissions test function (see operating instructions) The pumps connected at the control unit are not running Check the operating voltage (mains isolar, power cable, plug fö, ON/OFF switch, fuse F, 6.3 A (slow). F fuse is faulty:. Pull out all 30 V plugs from the control unit (pumps, burner).. Replace the F fuse. 3. To determine the faulty device, reconnect all 30 V devices in sequence, until the faulty device is located. Pumps are running Is there voltage at plug fa across L and N? Service 75

76 Troubleshooting Faults that are not displayed at the (cont.) No Yes Check plug fa, burner connecting cable and high limit safety cut-out, as well as The fault is unlikely due the control unit, instead the burner connection area or the burner itself may be the cause: Is terminal T of plug fa 'live' when connected? any other limiters (low No Yes water indicar, pressure limiter, etc.). Check any burner equipment (fuses, gas pressure limiter, etc.). Check high limit safety cuut (see relevant chapter); the burner must start in accordance with the selected delay (e.g. oil preheating). If the burner is still not operating, repeat the previous checking steps. It may be that faulty accessories are preventing the burner from starting. Boiler water temperature is o high or o low Compare the actual and the set boiler water temperature Set value o high or o low Check the settings for the set room temperatures, time phases, heating curves and coding addresses (at the control unit and any remote controls):. Select standard set room temperature very high, reduced set room temperature very low.. Set time phases so that in the next few minutes, the system will change from operation at standard room temperature operation at reduced room temperature or vice versa. 3. The changeover must effect a significant set value modification for the boiler water temperature. 4. Check external hook-ups (e.g. extension EA). Set value OK The fault lies with temperature capture.. Establish the boiler water temperature with a thermometer inside the sensor well.. Compare the values from the boiler water temperature sensor with the pressure drop curve. 3. Check the switch-off point of the electromechanical thermostat. 76

77 Troubleshooting Faults that are not displayed at the (cont.) Boiler hot enough but the heating circuit pump connected the control unit is not running Enable emissions test function (see operating instructions). Heating circuit pump runs Check heating curve, set values and heating circuit pump logic, possibly also external hook-ups or high DHW demand. Heating circuit pump not running Is there voltage at plug sö across L and N? No Yes Check fuse F, 6.3 A (slow). If the fuse has blown:. Pull plug sö.. Replace the F fuse. 3. Repeat this test if the fuse F remains intact but the pump connection does not go 'live'. Possibly replace the main PCB.. Check pump connection and pump.. Check any additional control devices (e.g. maximum thermostat). Service 77

78 Function description Boiler water temperature control Brief description The boiler water temperature is regulated by starting or spping the burner or through modulation. In the delivered condition, the switching differential is ± K, relative the current set value. The set boiler water temperature is determined from the following parameters: Set flow temperature of the heating circuits and those connected via the LON Set DHW temperature External demand When the DHW cylinder is heated up, a set boiler water temperature is defaulted that lies 0 K above the set DHW temperature (adjustable via coding address "60"). Coding addresses that influence the regulation of the boiler water temperature: "0", "04", "06", "3" in the "Boiler" group. For a description, see codes overview. Functions The boiler water temperature is captured by the following equipment: High limit safety cut-out (STB) (liquid expansion) TR thermostat (liquid expansion) Boiler water temperature sensor NTC 0 kω Upper control range limits High limit safety cut-out STB 0/00/95 ºC Control thermostat TR 75/87/95 ºC Electronic maximum temperature limit: Setting range: 0 7 ºC Change via coding address "06". The limit is only effective within the control range (not for DHW cylinder heating). Lower control range limits In standard mode and when frost protection is enabled, the boiler water temperature will be regulated subject the respective boiler. Auxiliary circuits Extension for controlling a two-stage/ modulating burner (see page 45). External hook-ups (messages) via extension EA (see page 47). Plug "X"/lH for external burner start (see page 40). Plug lh for external blocking (see page 4). 78

79 Function description Boiler water temperature control (cont.) Switching hysteresis, burner Permanent switching hysteresis Code "04:0" Burner ON OFF + Time set - low heat demand average heat demand high heat demand Heat demand-dependent switching hysteresis The heat demand-dependent switching hysteresis takes the boiler load in account. The switching hysteresis, i.e the burner runtime varies subject actual heat demand. ERB50 function Code "04:" Subject heat demand, values between 6 and K result. OFF Burner ON Time set -3 low heat demand average heat demand high heat demand Service ERB80 function Code "04:" Subject heat demand, values between 6 and 0 K result. 79

80 Function description Boiler water temperature control (cont.) OFF Burner ON Time set -3 low heat demand average heat demand high heat demand Control sequence Boiler goes cold (Set value K) The burner start signal is set for a set boiler water temperature K and the burner starts its own moniring program. The burner start may be delayed by a few minutes subject the number of auxiliary circuits and the combustion type. Modulating burner: The burner shutdown point is determined by the shutdown differential (coding address "3"). Note The burner start may be delayed by a few minutes subject the number of auxiliary circuits and the combustion type. Boiler heats up (Set value + K) The burner shuts down. 80

81 Function description Heating circuit control Brief description The control unit has control circuits for a heating circuit without mixer HC and two heating circuits with mixer HC and HC3. The set flow temperature of every heating circuit is determined from the following parameters: Outside temperature Set room temperature Operation Heating curve slope and level The flow temperature of heating circuits without mixer is equal the boiler water temperature. The flow temperature of the heating circuits with mixer is regulated by the stepped opening or closing of the mixers. The mixer mor control changes the actuating and pause times subject the control differential (control deviation). Coding addresses that influence the heating circuit control: "9F" in the "General" group and "A0" "Fb" in the "Heating circuit..." group. For a description, see codes overview. Functions The heating circuit without mixer is subject the boiler water temperature and its control range limits. The heating circuit pump is the only actuar. The flow temperature of the heating circuits with mixer is recorded by the flow temperature sensor of the relevant heating circuit. Time program In accordance with the time program in the "Heating and DHW" heating program, the control unit regulates between "Central heating at standard room temperature" and "Central heating at reduced room temperature". Every operating mode has its own set level. You can set up 4 time phases. Outside temperature A heating curve must be set up for matching the control unit the building and the heating system. The heating curve characteristics determine the set boiler water temperature subject outside temperature. An average outside temperature is used for control purposes. This comprises the actual and the adjusted outside temperature. Room temperature In conjunction with the remote control and room temperature hook-up (observe coding address "b0"): Compared with the outside temperature, the room temperature has a greater influence on the set boiler water temperature. Changes via coding address "b". Service 8

82 Function description Heating circuit control (cont.) DHW temperature Priority control With priority control: (Code "A:"): The set flow temperature is set 0 C during cylinder heating. The mixer closes and the heating circuit pump is switched off. Without priority control: The heating circuit control unit continues operate with the same set value. With modulating priority control in conjunction with heating circuits with mixer: The heating circuit pump remains switched on. The set flow temperature of the heating circuits will be reduced, for as long as the set boiler water temperature has not been reached during cylinder heating. The set flow temperature is determined from the following parameters: Outside temperature Differential between the set and the actual boiler water temperature Heating curve slope and level Setting of coding address "A" Heating circuit pump logic (economy mode) The heating circuit pump is switched off (set flow temperature set 0 C) if the outside temperature exceeds the value selected via coding address "A5". Extended economy mode The heating circuit pump is switched off (set flow temperature set 0 C) if one of the following criteria is met: The adjusted outside temperature exceeds the value selected via coding address "A6". A reduction of the set room temperature is achieved via coding address "A9". The actual room temperature exceeds the value selected via coding address "b5". Screed drying function In conjunction with a heating circuit with mixer. For drying screeds (always observe the information provided by the screed manufacturer). The heating circuit pump of the heating circuit with mixer is started and the flow temperature is held in accordance with the selected profile. After completion (30 days), the mixer circuit will again be regulated aumatically via the set parameters. Observe EN 64. The report be provided by the heating contracr must contain the following heat-up details: Heat-up data with respective flow temperatures Max. flow temperature achieved Operating conditions and outside temperature during handover of the heating system 8

83 Function description Heating circuit control (cont.) The various temperature profiles are adjustable via coding address "F". The function continues after power failure or after the control unit has been switched off. The "Heating and DHW" heating program will be enabled after the screed drying function has been terminated or if code "F:0" is manually adjusted. Temperature profile : (EN 64-4) code "F:" Flow temperature C Days Temperature profile : (ZV parquet and flooring technology) code "F:" Flow temperature C Days Temperature profile 3: Code "F:3" Service Flow temperature C Days 83

84 Function description Heating circuit control (cont.) Temperature profile 4: Code "F:4" Flow temperature C Days Temperature profile 5: Code "F:5" Flow temperature C Days Temperature profile 6: Code "F:6" Flow temperature C Days 84

85 Function description Heating circuit control (cont.) Temperature profile 7: Code "F:5" Flow temperature C Days System dynamics You can influence the control characteristics of the mixers via coding address "C4". Frost protection The flow temperature is maintained in accordance with the heating curve for the reduced set room temperature, but at min. 0 C. A variable frost limit can be set in accordance with coding address "A3". Service 85

86 Function description Heating circuit control (cont.) Flow temperature control Boiler water or flow temperature in C 0 +8K 87 A D 8K B C E +0-0 Outside temperature in C A Max. boiler water temperature B Slope =.8 for heating circuit without mixer C Slope =. for heating circuit with mixer D Boiler water temperature (when differential temperature = 8 K) E Lower boiler water temperature, defaulted by the boiler coding card Differential temperature: The differential temperature can be adjusted via coding address "9F", Delivered condition: 8 K. The differential temperature is the minimum value by which the boiler water temperature should be higher than the highest currently required flow temperature of the heating circuit with mixer. System with only one heating circuit with mixer: The set boiler water temperature will be aumatically controlled 8 K above the set flow temperature. System with heating circuit without mixer and with heating circuit with mixer: The set boiler water temperature operates in accordance with a special heating curve. The differential temperature of 8 K compared with the set flow temperature is set at the facry. Raising the reduced room temperature During operation with reduced room temperature, the reduced set room temperature can be aumatically raised subject the outside temperature. The temperature is raised in accordance with the selected heating curve, but no higher than the set standard room temperature. The outside temperature limits for the start and end of the temperature raising can be adjusted via coding addresses "F8" and "F9". 86

87 Function description Heating circuit control (cont.) Example using the settings in the delivered condition 90 Boiler water or Flow temperature in C A B Set room temperature in C Outside temp. in C A Heating curve for operation with standard room temperature Reducing the heat-up time During the transition from operation with reduced room temperature operation with standard room temperature, the boiler water or flow temperature will be raised in accordance with the selected heating curve. The boiler water or flow temperature increase can be aumatically raised. B Heating curve for operation with reduced room temperature The value and duration of the additional increase of the set boiler water temperature or flow temperature is adjusted in coding addresses "FA" and "Fb". Service 87

88 Function description Heating circuit control (cont.) Example using the settings in the delivered condition C B D Set boiler water or flow temperature in C A Time in h A Start of operation with standard room temperature B Set boiler water or flow temperature in accordance with the selected heating curve C Set boiler water or flow temperature in accordance with the selected coding address "FA": 50 C + 0 % = 60 C D Duration of operation with raised set boiler water or flow temperature in accordance with coding address "Fb": 60 min Control sequence Mixer circuit The mixer mor will not be controlled within the "neutral zone" (± K). Flow temperature drops (Set value K) The mixer mor receives the signal "Mixer open". The signal duration lengthens with an increasing control differential. The duration of pauses reduces with an increasing control differential. 88

89 Function description Heating circuit control (cont.) Flow temperature rises (Set value + K) The mixer mor receives the signal "Mixer closed". The signal duration lengthens with an increasing control differential. The duration of pauses reduces with an increasing control differential. Cylinder temperature control Brief description The cylinder temperature control is a constant temperature control. This is the result of starting and spping the circulation pump for cylinder heating. The switching differential is ±.5 K. When the DHW cylinder is heated up, a set boiler water temperature is defaulted that lies 0 K above the set DHW temperature (adjustable via coding address "60"). Coding addresses that influence the cylinder temperature control: "55" "67", "7" "73" in the "DHW" group, "7F" in the "General" group, "d5" and "A" in the "Heating circuit..." group. For a description, see codes overview. Service 89

90 Function description Cylinder temperature control (cont.) Functions Time program An aumatic or an individual time program may be selected for DHW heating and the DHW circulation pump. Compared with the heating circuit heatup phase, DHW heating starts 30 min earlier in aumatic mode. The individual time program enables up 4 time phases per day be set for DHW heating and the DHW circulation pump for every day of the week. All cylinder heating sequences will be completed independently of the time program. In conjunction with coding address "7F" Apartment block Code "7F:0": For systems with two or three heating circuits, the heating times for the respective heating circuit will be applied. Aumatic mode For systems with two or three heating circuits, the heating times for the respective heating circuit will be applied. Individual time program The time phases for DHW heating and the DHW circulation pump can be adjusted individually for each heating circuit. Detached house Code "7F:": Aumatic operation The heating times for heating circuit are applied systems with two or three heating circuits. Individual time program The time phases for DHW heating and the DHW circulation pump have the same effect on all heating circuits. 90

91 Function description Cylinder temperature control (cont.) Priority control With priority control: (Code "A:"): The set flow temperature is set 0 C during cylinder heating. The mixer closes and the heating circuit pump is switched off. Without priority control: The heating circuit control unit continues operate with the same set value. With modulating priority control in conjunction with heating circuits with mixer: The heating circuit pump remains switched on. The set flow temperature of the heating circuits will be reduced, for as long as the set boiler water temperature has not been reached during cylinder heating. The set flow temperature is determined from the following parameters: Outside temperature Differential between the set and the actual boiler water temperature Heating curve slope and level Setting of coding address "A" Frost protection The DHW cylinder will be heated 0 C if the DHW temperature sinks below 5 ºC. Auxiliary function for DHW heating This function is activated by providing a second set DHW temperature via coding address "58" and activating the fourth DHW phase for DHW heating. Set DHW temperature The set DHW temperature can be adjusted between 0 and 60 C. The set value range can be extended up 90 ºC via coding address "56". DHW circulation pump This delivers hot water the draw-off points at adjustable times. Four time phases can be selected at the control unit for every day. Auxiliary circuits With extension EA: DHW heating can be blocked or enabled by switching the heating program (see coding address "d5" in the "Heating circuit..." group). The DHW circulation pump can be controlled for a short period via a floating contact. The time is adjustable via coding address "3d" in the "General" group. System with solar control unit A third set DHW temperature can be defaulted via coding address "67". The DHW cylinder is only reheated by the boiler if the temperature falls below this value. Service 9

92 Function description Cylinder temperature control (cont.) Control sequence Code "55:0", cylinder heating The DHW cylinder goes cold (set value.5 K, adjustable via coding address "59"): The set boiler water temperature is set 0 K higher than the set DHW temperature (adjustable via coding address "60"). Note The value set in coding address "06" in the "Boiler" group for the maximum boiler water temperature limit has no effect. Pump on: Starting the circulation pump for cylinder heating subject the boiler water temperature (code "6:0"). The circulation pump starts when the boiler water temperature is 7 K higher than the DHW temperature. Immediate start of the circulation pump for cylinder heating (code "6:"). The DHW cylinder is hot (set value +.5 K): The set boiler water temperature is returned the weather-compensated set value. Pump run-on: The cylinder primary pump runs on after cylinder heating until the following criteria are met: The difference between the boiler water temperature and the DHW temperature is less than 7 K. The weather-compensated set boiler water temperature has been reached. The set DHW temperature is exceeded by 5 K. The set max. run-on time has been reached (coding address "6"). Without pump run-on (code "6:0"). Code "55:", adaptive cylinder heating With adaptive cylinder heating, the speed of the temperature rise during DHW heating is taken in account. 9

93 Function description Cylinder temperature control (cont.) The DHW cylinder goes cold (set value.5 K, adjustable via coding address "59"): The set boiler water temperature is set 0 K higher than the set DHW temperature (adjustable via coding address "60"). Note The value set in coding address "06" in the "Boiler" group for the maximum boiler water temperature limit has no effect. Pump on: Starting the circulation pump for cylinder heating subject the boiler water temperature (code "6:0"): The circulation pump starts when the boiler water temperature is 7 K higher than the DHW temperature. Immediate start of the circulation pump for cylinder heating (code "6:"). The DHW cylinder is hot: The control unit checks whether the boiler will be required supply heat after the cylinder has been heated up or whether residual boiler heat should be transferred the DHW cylinder. Accordingly, the control unit determines the burner and circulation pump shutdown points prevent the set DHW temperature being substantially exceeded after the cylinder has been heated up. Service 93

94 Code Calling up coding level Note The codes are displayed as plain text. Codes that have no function, due the heating system equipment level or the setting of other codes, are not displayed. Heating systems with one heating circuit without mixer and one or two heating circuits with mixer: The heating circuit without a mixer is designated "Heating circuit " and the heating circuits with a mixer as "Heating circuit " or "Heating circuit 3". If the heating circuits were given individual designations, the selected designation and "HC", "HC" or "HC3" appear instead. 4. Select coding address. 5. Select value according the following tables and confirm with OK. 6. If you want reset all codes their delivered condition: Select "Standard setting" in "Coding level ". Note This also resets codes from coding level.. Press OK and å simultaneously for approx. 4 s.. "Coding level " 3. Select group of required coding address: "General" "Boiler" "DHW" "Solar" "Heating circuit //3" "All codes std device" In this group, all coding addresses from coding level (except the coding addresses from the "Solar" group) are displayed in ascending order. 94

95 Code "General" group Coding Coding in the delivered condition System design 00: One heating circuit without mixer (heating circuit ), without DHW heating Possible change 00: 00:0 For system schemes, see the following table. Value Description address 00:... One heating circuit without mixer A (heating circuit ) with DHW heating (code is set aumatically) 3 One heating circuit with mixer M (heating circuit ) without DHW heating 4 One heating circuit with mixer M (heating circuit ) with DHW heating 5 One heating circuit without mixer A (heating circuit ) One heating circuit with mixer M (heating circuit ) without DHW heating (code is set aumatically) 6 One heating circuit without mixer A (heating circuit ) One heating circuit with mixer M (heating circuit ) with DHW heating (code is set aumatically). 7 Two heating circuits with mixer M (heating circuit ) and M3 (heating circuit 3) without DHW heating 8 Two heating circuits with mixer M (heating circuit ) and M3 (heating circuit 3) with DHW heating 9 One heating circuit without mixer A (heating circuit ) Two heating circuits with mixer M (heating circuit ) and M3 (heating circuit 3) without DHW heating (code is set aumatically). 0 One heating circuit without mixer A (heating circuit ) Two heating circuits with mixer M (heating circuit ) and M3 (heating circuit 3) with DHW heating (code is set aumatically). Service 95

96 Code "General" group (cont.) Coding in the delivered condition Possible change Internal circulation pump function 5:0 Only if buffer temperature 5: Do not adjust. sensor is connected: boiler circuit pump runs permanently. 5: When there is heat demand, the boiler circuit pump will only be started if the burner is running. Subscriber no. 77: LON subscriber number 77: 77:99 LON subscriber number, adjustable from 99: = Boiler control unit 0-97 = Vitronic 00-H 98 = Vigate 99 = Vicom Note Allocate each number only once. Detached house/apartment building 7F: Detached house. 7F:0 Apartment block. Separate adjustment of holiday program and time program for DHW heating possible. 96

97 Code "General" group (cont.) Coding in the delivered condition Lock out controls 8F:0 All control elements enabled. Possible change 8F: All control elements blocked. Note The code is only enabled once the service level has been exited (see page 64). Emissions test mode can be enabled. 8F: Only standard settings can be controlled, i.e. the extended menu cannot be called up. Emissions test mode can be enabled. Set flow temperature for external demand 9b:70 Set minimum boiler water temperature for external demand 70 C. 9b:0 9b:7 Set value for external demand adjustable from 0 7 C (limited by boilerspecific parameters). "Boiler" group Coding Coding in the delivered condition Possible change Burner type 0:0 Single stage burner 0: Two-stage burner 0: Modulating burner Gas/oil operation 03:0 Never adjust. Service 97

98 Code "Boiler" group (cont.) Coding in the delivered condition Possible change Boiler water temperature maximum limit 06:74 Set 74 C. 06:0 06:7 Note The code has no effect during DHW cylinder heating demand. Flue gas monir F:0 With flue gas temperature sensor: Flue gas temperature is not monired for burner service indication. Burner service in 00 hours :0 No service interval (hours run) selected. Service interval in months 3:0 No interval for burner service. F: F:50 C : :00 3: 3:4 Adjustable from 0 7 C. Note Observe the setting of the thermostat "R" (see page 37). When the limit for the flue gas temperature is exceeded, "Service" is displayed. The number of hours run before the burner should be serviced is adjustable from h; step 00 h Interval adjustable from 4 months. Service status 4:0 No "Service" display. 4: "Service" display (the address is aumatically set and must be manually reset after a service has been carried out). 98

99 Code "DHW" group Coding Coding in the delivered condition Possible change Cylinder heating control type 55:0 Cylinder heating Hysteresis ±.5 K 55: Adaptive cylinder heating (see page 9). Set DHW temperature reheating suppression 67:40 For solar DHW heating: Set DHW temperature 40 C. Reheating is suppressed above the selected set temperature (DHW heating blocked by the boiler). 67:0 67:90 Set DHW temperature adjustable from 0 90 C (limited by boiler-specific parameters). Enable DHW circulation pump 73:0 DHW circulation pump "ON" according time program. 73: 73:6 "On" from once per hour for 5 min up 6 times per hour for 5 min during the time program. 73:7 Constantly "On". "Solar" group Only in conjunction with solar control module, type SM. Coding Coding in the delivered condition Speed control solar circuit pump 0:0 Solar circuit pump is not speed-controlled. Possible change 0: Solar circuit pump is speed-controlled with wave pack control. 0: Solar circuit pump is speed-controlled with PWM control. Service 99

100 Code "Solar" group (cont.) Coding in the delivered condition Possible change Cylinder maximum temperature 08:60 The solar circuit pump sps when the actual DHW temperature reaches the maximum cylinder temperature (60 C). 08:0 08:90 The maximum cylinder temperature can be adjusted from 0 90 C. Stagnation time reduction 0A:5 To protect the system components and heat 0A:0 Stagnation time reduction disabled. transfer medium: the speed of the solar circuit pump is reduced if the actual DHW temperature is 5 K below the maximum cylinder temperature. 0A: 0A:40 Value for stagnation time reduction adjustable from 40 K. Flow rate solar circuit 0F:70 Flow rate of solar circuit at max. pump speed 7 l/min. 0F: 0F:55 Flow rate adjustable from l/min; step 0. l/min. 00

101 Code "Solar" group (cont.) Coding in the delivered condition Possible change Extended solar control functions 0:0 No extended control function enabled. 0: Additional function for DHW heating. 0: Differential temperature control. 0:3 Differential temperature control and auxiliary function. 0:4 Differential temperature control for central heating backup. 0:5 Thermostat function. 0:6 Thermostat function and auxiliary function. 0:7 Solar heating via external heat exchanger without additional temperature sensor. 0:8 Solar heating via external heat exchanger with additional temperature sensor. 0:9 Solar heating of two DHW cylinders. Service 0

102 Code "Heating circuit ", "Heating circuit ", "Heating circuit 3" group Coding Coding in the delivered condition Priority DHW heating A: Cylinder priority applicable heating circuit pump and mixer. Possible change A:0 Without cylinder priority applicable heating circuit pump and mixer. A: Cylinder priority applies only the mixers. A:3 A:5 Modulating priority applied mixer; i.e. the heating circuit receives a reduced amount of heat. Economy function outside temperature A5:5 With heating circuit pump logic function (economy A5:0 Without heating circuit pump logic function. circuit): Heating circuit pump "Off" when the outside temperature (AT) is K higher than the set room temperature (RT set ) AT > RT set + K A5: A5:5 With heating circuit pump logic function: Heating circuit pump "Off"; see the following table. Parameter address With heating circuit pump logic function: Heating circuit pump "Off" A5:... AT > RT set + 5 K AT > RT set + 4 K 3 AT > RT set + 3 K 4 AT > RT set + K 5 AT > RT set + K 6 AT > RT set 7 AT > RT set - K 5 AT > RT set - 9 K 0

103 Code "Heating circuit ", "Heating circuit ", "Heating circuit 3" group (cont.) Coding in the delivered condition Possible change Extended economy function adjusted outside temperature A6:36 Extended economy mode disabled. Extended economy function mixer A7:0 Without mixer economy function (only for heating circuit with mixer). A6:5 A6:35 Extended economy control enabled, i.e. the burner and heating circuit pump will be spped and the mixer closed at a variable value, adjustable between 5 and 35 C plus C. The base value is the adjusted outside temperature. This value is based on the actual outside temperature and a time constant that takes the cooling down of an average building in consideration. A7: With mixer economy function (extended heating circuit pump logic): Heating circuit pump also "Off": If the mixer has been closed for longer than 0 min. Heating circuit pump "On": If the mixer changes control function. If there is a risk of frost. Pump idle time, transition reduced mode A9:7 With pump idle time A9:0 Without pump idle time. (heating circuit pump "Off"): Subject the outside temperature and the set value modification through operating mode changeover. A9: A9:5 With pump idle time; adjustable from 5. Service 03

104 Code "Heating circuit ", "Heating circuit ", "Heating circuit 3" group (cont.) Coding in the delivered condition Possible change Weather-compensated/room temperature hook-up b0:0 With remote control: Heating mode/reduced mode: weather-compensated (change code only b0: Heating mode: weathercompensated Reduced mode: with room temperature hook-up for the heating circuit with mixer). b0: Heating mode: with room temperature hook-up Reduced mode: weathercompensated b0:3 Heating mode/reduced mode: with room temperature hook-up Economy function room temperature b5:0 With remote control: No room temperaturedependent heating circuit pump logic function (change code only for heating circuit with mixer). b5: b5:8 Heating circuit pump logic function, see the following table. Parameter With heating circuit pump logic function: address b5:... Heating circuit pump "Off" Heating circuit pump "On" RT actual > RT set + 5 K RT actual < RT set + 4 K RT actual > RT set + 4 K RT actual < RT set + 3 K 3 RT actual > RT set + 3 K RT actual < RT set + K 4 RT actual > RT set + K RT actual < RT set + K 5 RT actual > RT set + K RT actual < RT set 6 RT actual > RT set RT actual < RT set - K 7 RT actual > RT set - K RT actual < RT set - K 8 RT actual > RT set - K RT actual < RT set - 3 K Coding in the delivered condition Min. flow temperature heating circuit C5:0 Electronic minimum flow temperature limit 0 C (only works at standard room temperature). Possible change C5: C5:7 Minimum limit adjustable from 7 C (limited by boiler-specific parameters). 04

105 Code "Heating circuit ", "Heating circuit ", "Heating circuit 3" group (cont.) Coding in the delivered condition Possible change Max. flow temperature heating circuit C6:74 Electronic maximum flow temperature limit set 74 C. C6:0 C6:7 Maximum limit adjustable from 0 7 C (limited by boiler-specific parameters). Heating program - changeover d5:0 With external heating program changeover (observe settings of coding addresses "3A", "3b" and "3C"). Heating program switches "Constant central heating with reduced room temperature" or "Standby mode" (subject the settings of the set reduced room temperature). d5: The heating program changes "Constant operation with standard room temperature". Ext. heating program changeover heating circuit d8:0 No heating program changeover via extension EA. Screed function F:0 Screed function disabled F: F:6 d8: Heating program changeover via input DE at extension EA. d8: Heating program changeover via input DE at extension EA. d8:3 Heating program changeover via input DE3 at extension EA. Screed function adjustable in accordance with 6 optional temperature/time profiles (see page 8). F:5 Constant flow temperature 0 C (see page 8). Service 05

106 Code "Heating circuit ", "Heating circuit ", "Heating circuit 3" group (cont.) Coding in the delivered condition Possible change Party mode time limit F:8 Time limit for party mode or external heating program changeover via key: 8 h *. F:0 F: F: No time limit *. Time limit adjustable from h *. Note Observe settings of coding addresses "3A", "3b", "3C" in the "General" group and "d5" and "d8" in the "Heating circuit..." group. Start temperature raising F8:-5 Temperature limit for terminating reduced mode -5 ºC, see example on page 86. Observe the setting of coding address "A3". F8:+0 F8:-60 F8:-6 End temperature raising F9:-4 Temperature limit for raising F9:+0 the set reduced room temperature -4 ºC, see F9:-60 example on page 86. Set flow temperature increase FA:0 Raising the set boiler water or flow temperature by 0 % when changing from operation with reduced room temperature operation with standard room temperature. See example on page 87. FA:0 FA:50 Temperature limit adjustable from C. Function disabled. Temperature limit for raising the set room temperature the value selected for standard mode adjustable from C. Temperature rise adjustable from 0 50 %. * Party mode ends aumatically in the "Heating and DHW" heating program when the system changes over operation with standard room temperature. 06

107 Code "Heating circuit ", "Heating circuit ", "Heating circuit 3" group (cont.) Coding in the delivered condition Possible change Duration set flow temperature increase Fb:30 Duration of the set boiler water or flow temperature increase (see coding address "FA") 60 min. See example on page 87. Fb:0 Fb:50 Duration adjustable from min; step min. Service 07

108 Code Calling up coding level Note In coding level, all codes are accessible, including the codes from coding level. Codes that have no function, due the heating system equipment level or the setting of other codes, are not displayed. Heating systems with one heating circuit without mixer and one or two heating circuits with mixer: The heating circuit without mixer is designated "Heating circuit " and the heating circuits with mixer as "Heating circuit " or "Heating circuit 3". If the heating circuits were given individual designations, the selected designation and "HC", "HC" or "HC3" appear instead.. Press OK and å simultaneously for approx. 4 s.. Press OK and ä simultaneously for approx. 4 s. 4. Select group of required coding address: "General" "Boiler" "DHW" "Solar" "Heating circuit //3" "All codes std device" In this group, all coding addresses (except the coding addresses from the "Solar" group) are displayed in ascending order. 5. Select coding address. 6. Select value according the following tables and confirm with "OK". 7. If you want reset all codes their delivered condition: Select "Standard setting" in "Coding level ". Note This also resets codes from coding level. 3. "Coding level " "General" group Coding Coding in the delivered condition Possible change 00: System version : One heating circuit without mixer A (heating circuit ), without DHW heating. 00: 00:0 For system schemes, see the following table. 08

109 Code "General" group (cont.) Value Description address 00:... One heating circuit without mixer A (heating circuit ) with DHW heating (code is set aumatically) 3 One heating circuit with mixer M (heating circuit ) without DHW heating 4 One heating circuit with mixer M (heating circuit ) with DHW heating 5 One heating circuit without mixer A (heating circuit ) One heating circuit with mixer M (heating circuit ) without DHW heating (code is set aumatically) 6 One heating circuit without mixer A (heating circuit ) One heating circuit with mixer M (heating circuit ) with DHW heating (code is set aumatically). 7 Two heating circuits with mixer M (heating circuit ) and M3 (heating circuit 3) without DHW heating 8 Two heating circuits with mixer M (heating circuit ) and M3 (heating circuit 3) with DHW heating 9 One heating circuit without mixer A (heating circuit ) Two heating circuits with mixer M (heating circuit ) and M3 (heating circuit 3) without DHW heating (code is set aumatically). 0 One heating circuit without mixer A (heating circuit ) Two heating circuits with mixer M (heating circuit ) and M3 (heating circuit 3) with DHW heating (code is set aumatically). Coding in the delivered condition E:0 With extension EA (analogue input 0-0 V): Temperature demand from 0 00 C: V 0 C 0 V 00 C E:0 Never adjust. 3:0 Never adjust. 33:0 Never adjust. 34:0 Never adjust. Possible change E: Temperature demand from 30 0 C: V 30 C 0 V 0 C 09 Service

110 Code "General" group (cont.) Coding in the delivered condition Possible change 35:0 Without extension EA. 35: With extension EA (aumatic recognition). 36:0 Function output abj at 36: No function. extension EA: Fault message 36: No function. 3A:0 Function input DE at extension EA: No function. 3b:0 Function input DE at extension EA: No function. 3C:0 Function input DE3 at extension EA: 0 3A: Heating program - changeover. 3A: External demand with set minimum boiler water temperature. Setting of the set value in coding address "9b". 3A:3 External blocking. 3A:4 External blocking with fault message input. 3A:5 Fault message input. 3A:6 Brief operation, DHW circulation pump (pushbutn function). Setting of the DHW circulation pump runtime in coding address "3d". 3b: Heating program - changeover. 3b: External demand with set minimum boiler water temperature. Setting of the set value in coding address "9b". 3b:3 External blocking. 3b:4 External blocking with fault message input. 3b:5 Fault message input. 3b:6 Brief operation, DHW circulation pump (pushbutn function). Setting of the DHW circulation pump runtime in coding address "3d". 3C: Heating program - changeover.

111 Code "General" group (cont.) Coding in the delivered condition Possible change No function. 3C: External demand with set minimum boiler water temperature. Setting of the set value in coding address "9b". 3C:3 External blocking. 3C:4 External blocking with fault message input. 3C:5 Fault message input. 3C:6 Brief operation, DHW circulation pump (pushbutn function). Setting of the DHW circulation pump runtime in coding address "3d". 3d:5 DHW circulation pump runtime for brief operation: 3d: Runtime adjustable from 60 min. 5 min 3d:60 40:0 Function input lh: 40: External demand. No function. 40: External blocking. 4:0 Never adjust. 4:0 Never adjust. 5:0 Only if buffer temperature sensor is connected: boiler circuit pump runs permanently. 5:0 Without buffer temperature sensor. 54:0 Without solar thermal system. 5: Never adjust. 5: When there is heat demand, the boiler circuit pump will only be started if the burner is running. 5: With buffer temperature sensor (aumatic recognition). 54: With Visolic 00 (aumatic recognition). 54: With Visolic 00 (aumatic recognition). 54:3 With solar control module, type SM, without auxiliary function (aumatic recognition). Service

112 Code "General" group (cont.) Coding in the delivered condition 6E:50 No display correction of the outside temperature. 76:0 Without LON communication module. Possible change 54:4 With solar control module, type SM, with auxiliary function e.g.central heating backup (aumatic recognition). 6E:0 6E:49 6E:5 6E:99 77: LON subscriber number. 77: 77:99 Display correction 5 K Display correction 0. K Display correction +0. K Display correction +4.9 K 76: With LON communication module (aumatic recognition). LON subscriber number, adjustable from 99: = Boiler control unit 0-97 = Vitronic 00-H 98 = Vigate 99 = Vicom Note Allocate each number only once. 79: With LON communication module: Control unit is fault manager. 7b: With LON communication module: Control unit transmits the time. 79:0 Control unit is not fault manager. 7b:0 Does not transmit time. 7F: Detached house. 7F:0 Apartment block. Separate adjustment of holiday program and time program for DHW heating possible. 80:6 If a fault occurs for at least 30 s, a fault message is displayed. 80:0 Immediate fault message.

113 Code "General" group (cont.) Coding in the delivered condition 8: Aumatic summer/wintertime changeover. 88:0 Temperature displayed in C (Celsius). 8A:75 Never adjust. 8F:0 Operation in the standard menu and extended menu enabled. Possible change 80: The minimum fault duration until a message is displayed is adjustable from 80: s; step 5 s 8:0 Manual summer/wintertime changeover. 8: Use of the radio clock receiver (aumatic recognition). 8:3 With LON communication module: The control unit receives the time. 88: Temperature displayed in F (Fahrenheit). 8F: Operation in the standard menu and extended menu blocked. Note The code is only enabled once the service level has been exited (see page 64). Emissions test mode can be enabled. 8F: Operation in the standard menu enabled, and in the extended menu blocked. Note The code is only enabled once the service level has been exited (see page 64). Service Emissions test mode can be enabled. 3

114 Code "General" group (cont.) Coding in the delivered condition 90:8 Time constant for calculating adjusted outside temperature.3 h. 95:0 Without Vicom 00 communication interface. 97:0 With LON communication module: The outside temperature of the sensor connected the control unit is utilised internally. 98: Viessmann system number (in conjunction with moniring several systems via Vicom 300). 9b:70 Set minimum boiler water temperature for external demand 70 C. 9C:0 Moniring LON subscribers. If there is no response from a subscriber, after 0 min, values defaulted inside the control unit are used. Only then will a fault message be issued. 9F:8 Differential temperature 8 K; only in conjunction with a heating circuit with mixer (heating circuit and 3). Possible change 90: Fast (low values) or slow (high values) matching of 90:99 the flow temperature, subject the set value when the outside temperature changes. step 0 min 95: With Vicom 00 communication interface (aumatic recognition). 97: Control unit receives the outside temperature. 97: Control unit transmits the outside temperature the Vitronic 00-H. 98: 98:5 9b:0 9b:7 System number adjustable from 5. Set value for external demand adjustable from 0 7 C (limited by boilerspecific parameters). 9C:0 No moniring. 9C:5 9C:60 9F:0 9F:40 Time adjustable from 5 60 min. Differential temperature adjustable from 0 40 K. 4

115 Code "Boiler" group Coding Coding in the delivered condition Possible change 0:0 Single stage burner 0: Two-stage burner 0: Modulating burner 03:0 Never adjust. 04:0 Burner switching hysteresis 4 K. 04: Burner switching hysteresis is heat demanddependent: ERB50 function (values from 6 K). 04: Burner switching hysteresis is heat demanddependent: ERB80 function (values from 6 0 K). 06:74 Maximum limit of the boiler water temperature set 74 C. Note The code has no effect during DHW cylinder heating demand. 06:0 06:7 Maximum limit adjustable from 0 7 C. Note Observe the setting of the thermostat "R" (see page 37). 0b:0 Never adjust. 0:0 Hook-up delay for enabling stage stage during heating operation (integral) = 560 Ks. :0 Hook-up delay for enabling stage stage during cylinder heating (integral) = 560 Ks. :0 Shutdown delay for blocking stage stage (integral) = 560 Ks. 3:6 Shutdown differential 6 K. 0:0 0:99 :0 :99 :0 :99 Hook-up delay adjustable from Ks; step 8 Ks Hook-up delay adjustable from Ks; step 8 Ks Shutdown delay adjustable from Ks; step 8 Ks 3:0 Without shutdown differential. 3: Shutdown differential adjustable from 0 K. 5 Service

116 Code "Boiler" group (cont.) Coding in the delivered condition The burner is switched OFF when the set boiler water temperature is exceeded. 5:5 Never adjust. 6:6 Modulating burner offset during start optimisation 6 K. 7:0 Modulating burner control amplification %/K. 8:30 Modulating burner reset time 300 s. A:6 Duration of the start optimisation for modulating burner 6 min. C:0 Signal B4 at plug fa is not available: Compensation of signal delay for hours run meter. Time from burner start signal initiation at T in plug fa opening of the solenoid valve. At each burner start, 0 s will be taken off the runtime. F:0 With flue gas temperature sensor: Flue gas temperature is not monired for burner service indication. 6 Possible change 3:0 6:0 6:5 7:0 7:55 8: 8:99 A:0 A:60 C: C:99 F: F:50 C Offset adjustable from 0 5 K. Setting subject matching of the modulating burner the boiler type from %/K. step 0. %/K. Setting subject matching of the modulating burner the boiler type from s. step 0 s. Duration adjustable from 0 60 min. Delay adjustable from 99 s. This time is deducted from the operating time for every burner start. E.g. operating situations in which the burner is shut down via the mechanical thermostat, but a burner demand is still present (hours run continue be counted). If required, change coding address "06". When the limit for the flue gas temperature is exceeded, "Service" is displayed.

117 Code "Boiler" group (cont.) Coding in the delivered condition :0 No service interval (hours run) selected. 3:0 No interval for burner service. Possible change : The number of hours run before the burner should :00 be serviced is adjustable from h step 00 h. 3: 3:4 Interval adjustable from 4 months. 4:0 No "Service" display. 4: "Service" display (the address is aumatically set and must be manually reset after a service has been carried out). 6:0 Burner fuel consumption (stage ): No count if "6:0" and "7:0" are programmed. 6: 6:99 Input of ; step 0. l/h or gallons/ h Note Values of coding addresses "6" and "7" are added gether. 7:0 Burner fuel consumption (stage ): No count if "6:0" and "7:0" are programmed. 8:0 No burner interval ignition. 9:0 Burner fuel consumption (stage ); no count if "9:0" and "A:0" are programmed. 7: 7:99 8: 8:4 9: 9:99 Input of 0 990; step 0 l/h or gallons/h Time interval adjustable from 4 h. The burner is force-started respectively for 30 s. Input of ; step 0. l/h or gallons/ h Note Values of coding addresses "6" and "7" are added gether. Service A:0 Burner fuel consumption (stage ): A: Input of 0 990; step 0 l/h or gallons/h 7

118 Code "Boiler" group (cont.) Coding in the delivered condition No count if "9:0" and "A:0" are programmed. Possible change A:99 "DHW" group Coding Coding in the delivered condition 55:0 Cylinder heating Hysteresis ±.5 K 56:0 Set DHW temperature adjustable from 0 60 C. Possible change 55: Adaptive cylinder heating (see page 9). 56: Set DHW temperature adjustable from 0 above 60 C. Note Observe the max. permissible DHW temperature. Change the thermostat "R" setting. 58:0 Without auxiliary function for DHW heating. 59:0 Cylinder heating: Starting point -.5 K Spping point +.5 K 5b:0 Never adjust. 5E:0 Circulation pump for cylinder heating stays in control mode at signal "External blocking". 5F:0 Circulation pump for cylinder heating stays in control mode at signal "External demand". 58:0 58:60 59: 59:0 Input of a second set DHW temperature, adjustable from 0 90 C (observe coding addresses "56" and "63"). Start point adjustable from 0 K below set value. 5E: Circulation pump for cylinder heating sps at signal "External blocking". 5E: Circulation pump for cylinder heating starts at signal "External blocking". 5F: Circulation pump for cylinder heating sps at signal "External demand". 8

119 Code "DHW" group (cont.) Coding in the delivered condition 60:0 During DHW heating, the boiler water temperature is max. 0 K higher than the set DHW temperature. 6:0 The circulation pump for cylinder heating starts subject the boiler water temperature. 6: Circulation pump with max. min run-on after cylinder heating. 67:40 For solar DHW heating: Set DHW temperature 40 C. Reheating is suppressed above the selected set temperature (DHW heating blocked by the boiler). 7:0 DHW circulation pump: "On" according time program. 7:0 DHW circulation pump: "On" according time program. 73:0 DHW circulation pump: "On" according time program. Possible change 5F: Circulation pump for cylinder heating starts at signal "External demand". 60:5 60:5 The differential between the boiler water temperature and the set DHW temperature is adjustable from 5 5 K. 6: The circulation pump for cylinder heating starts immediately. 6:0 Circulation pump without run-on. 6: Run-on time adjustable from 5 min. 6:5 67:0 67:90 Set DHW temperature adjustable from 0 90 C (limited by boiler-specific parameters). 7: "Off" during DHW heating the first set value. 7: "On" during DHW heating the first set value. 7: "Off" during DHW heating the second set value. 7: "On" during DHW heating the second set value. 73: 73:6 "On" from once per hour for 5 min up 6 times per hour for 5 min during the time program. 73:7 Constantly "On". Service 9

120 Code "Solar" group Only in conjunction with solar control module, type SM. Coding Coding in the delivered condition Possible change 00:8 The solar circuit pump starts when the collecr temperature exceeds the actual DHW temperature by 8 K. 00: 00:30 The differential between the actual DHW temperature and the start point for the solar circuit pump can be adjusted from 30 K. 0:4 The solar circuit pump sps when the differential between the collecr temperature and the actual DHW temperature is less than 4 K. 0: 0:9 The differential between the actual DHW temperature and the sp point for the solar circuit pump can be adjusted from 9 K. 0:0 Solar circuit pump is not speed-controlled. 03:0 The temperature differential between the collecr temperature and actual DHW temperature is regulated 0 K. 04:4 Controller amplification of the speed control 4 %/K. 05:0 Minimum speed of the solar circuit pump 0 % of the maximum speed. 06:75 Maximum speed of the solar circuit pump 75 % of the maximum possible speed. 0 0: Solar circuit pump is speed-controlled with wave pack control. 0: Solar circuit pump is speed-controlled with PWM control. 03:5 03:0 04: 04:0 05: 05:00 06: 06:00 The differential temperature control between collecr temperature and actual DHW temperature can be adjusted from 5 0 K. Controller amplification adjustable from 0 %/K. Minimum speed of the solar circuit pump is adjustable from 00 %. Maximum speed of the solar circuit pump is adjustable from 00 %.

121 Code "Solar" group (cont.) Coding in the delivered condition 07:0 Interval function of the solar circuit pump switched off. 08:60 The solar circuit pump sps when the actual DHW temperature reaches the maximum cylinder temperature (60 C). 09:30 The solar circuit pump sps if the collecr temperature reaches 30 C (maximum collecr temperature protect the system components). 0A:5 To protect the system components and heat transfer medium: The speed of the solar circuit pump is reduced if the actual cylinder temperature is 5 K below the maximum cylinder temperature. 0b:0 Frost protection function for solar circuit switched off. 0C: Delta T moniring switched on. No flow rate captured in the solar circuit, or flow rate o low. 0d: Night circulation moniring switched on. Possible change 07: Interval function of the solar circuit pump switched on. To capture the collecr temperature more accurately, the solar circuit pump starts for short cycles. 08:0 The maximum cylinder temperature can be adjusted from :90 C. 09:0 09:00 The temperature can be adjusted from 0 00 C. 0A:0 Stagnation time reduction disabled. 0A: Value for stagnation time reduction adjustable from 0A:40 40 K. 0b: Frost protection function for solar circuit switched on (not required with Viessmann heat transfer medium). 0C:0 Delta T moniring switched off. 0d:0 Night circulation moniring switched off. Service

122 Code "Solar" group (cont.) Coding in the delivered condition Unintentional flow rate is captured in the solar circuit (e.g. at night). 0E: Calculation of solar yield with Viessmann heat transfer medium. 0F:70 Flow rate of solar circuit at max. pump speed 7 l/min. 0:0 Target temperature control switched off (see coding address ""). :50 Set DHW temperature for solar 50 C. Target temperature control switched on (code "0:"): Temperature at which the solar heated water in the DHW cylinder is be stratified. Extended control functions set heat two DHW cylinders (code "0:8"): When the set DHW temperature of a DHW cylinder is reached, the second DHW cylinder is heated. :0 Minimum collecr temperature 0 C. Possible change 0E: Calculation of solar yield with water as heat transfer medium (do not select, as operation is only possible with Viessmann heat transfer medium). 0E:0 Calculation of solar yield switched off. 0F: 0F:55 Flow rate adjustable from l/min. step 0. l/min 0: Target temperature control switched on. :0 :90 The set DHW temperature for solar can be adjusted from 0 90 C. :0 Minimum collecr temperature function disabled. : The minimum collecr temperature is adjustable from 90 C.

123 Code "Solar" group (cont.) Coding in the delivered condition Possible change The solar circuit pump is :90 not started until the selected minimum collecr temperature is exceeded. 0:0 No extended control function enabled. 0: Additional function for DHW heating. 0: Differential temperature control. 0:3 Differential temperature control and auxiliary function. 0:4 Differential temperature control for central heating backup. 0:5 Thermostat function. 0:6 Thermostat function and auxiliary function. 0:7 Solar heating via external heat exchanger without additional temperature sensor. 0:8 Solar heating via external heat exchanger with additional temperature sensor. 0:9 Solar heating of two DHW cylinders. :8 Start temperature differential for central heating backup: 8 K. Switching output ss is switched on when the temperature at sensor / exceeds the temperature at sensor aö by the selected value. : :30 Start temperature differential for central heating backup is adjustable from 30 K. 3:4 Sp temperature differential for central heating backup: 4 K. 3: 3:30 Sp temperature differential for central heating backup is adjustable from 9 K. 3 Service

124 Code "Solar" group (cont.) Coding in the delivered condition Possible change Switching output ss is switched off when the temperature at sensor / falls below the sp point. The sp point is the sum of the temperature at sensor aö and the value selected for the sp temperature differential. 4:40 Start temperature for thermostat function 40 C. Start temperature for thermostat function sp temperature for thermostat function: Thermostat function, e.g. for reheating. Switching output ss is switched on when the temperature at sensor / falls below the start temperature for the thermostat function. Start temperature for thermostat function > sp temperature for thermostat function: Thermostat function, e.g. for utilising excess heat. Switching output ss is switched on when the temperature at sensor / exceeds the start temperature for the thermostat function. 4:0 4:00 5:50 Sp temperature for 5:0 thermostat function 50 C. 5:00 Start temperature for thermostat function is adjustable from 0 00 K. Start temperature for thermostat function is adjustable from 0 00 K. 4

125 Code "Solar" group (cont.) Coding in the delivered condition Possible change Start temperature for thermostat function sp temperature for thermostat function: Thermostat function e.g. for reheating. Switching output ss is switched off when the temperature at sensor / exceeds the start temperature for the thermostat function. Start temperature for thermostat function > sp temperature for thermostat function: Thermostat function e.g. for utilising excess heat. Switching output ss is switched off when the temperature at sensor / falls below the start temperature for the thermostat function. 6: Priority for DHW cylinder with alternate heating. 6:0 Priority for DHW cylinder without alternate heating. Only when setting code "0:8". 6: Priority for DHW cylinder without alternate heating. 6:3 Priority for DHW cylinder with alternate heating. 6:4 Alternate heating without priority for one DHW cylinder. 7:5 Alternate heating time 5 min. 7:5 7:60 The alternate heating time is adjustable from 5 60 min. Service 5

126 Code "Solar" group (cont.) Coding in the delivered condition Possible change The DHW cylinder without priority is heated at most for the duration of the set alternate heating time if the DHW cylinder with priority is heated up. 8:3 Alternate pause duration 3 min. After the set alternate heating time for the DHW cylinder without priority has expired, the rise in collecr temperature is captured during the alternate pause duration. 8: 8:60 The alternate pause duration is adjustable from 60 min. "Heating circuit ", "Heating circuit ", "Heating circuit 3" group Coding Coding in the delivered condition Possible change A0:0 Without remote control. A0: With Vitrol 00A (aumatic recognition). A0: With Vitrol 300A or Vihome 300 (aumatic recognition). A:0 Only with Vitrol 00A: All possible settings at the remote control can be accessed. A: Only party mode can be set at the remote control. A: Cylinder priority applicable heating circuit pump and mixer. A:0 Without cylinder priority applicable heating circuit pump and mixer. A: Cylinder priority applies only the mixers. 6

127 Code "Heating circuit ", "Heating circuit ", "Heating circuit 3" group (cont.) Coding in the delivered condition A3: Outside temperature below C: Heating circuit pump "On". Outside temperature above 3 C: Heating circuit pump "Off". Possible change A:3 Modulating priority applied mixer; i.e. the heating circuit receives a reduced A:5 amount of heat. A3:-9 A3:5 Heating circuit pump "On/ Off" (see the following table).! Please note If a value below C is selected, there is a risk that pipes outside the thermal envelope of the building could freeze up. The standby mode, in particular, should be taken in consideration, e.g. during holidays. Parameter Heating circuit pump Address A3:... "On" "Off" -9-0 C -8 C -8-9 C -7 C -7-8 C -6 C -6-7 C -5 C -5-6 C -4 C -4-5 C -3 C -3-4 C - C - -3 C - C - - C 0 C 0 - C C 0 C C C 3 C 5 4 C 6 C Service Coding in the delivered condition Possible change A4:0 With frost protection. A4: No frost protection; this setting is only possible if code "A3:-9" has been selected. 7

128 Code "Heating circuit ", "Heating circuit ", "Heating circuit 3" group (cont.) Coding in the delivered condition Possible change! Please note Observe information regarding coding address "A3". A5:5 With heating circuit pump logic function (economy circuit): Heating circuit pump "Off" when the outside temperature (AT) is K higher than the set room temperature (RT set ) AT > RT set + K. A5:0 Without heating circuit pump logic function. A5: With heating circuit pump logic function: A5:5 Heating circuit pump "Off"; see the following table. Parameter address With heating circuit pump logic function: Heating circuit pump "Off" A5:... AT > RT set + 5 K AT > RT set + 4 K 3 AT > RT set + 3 K 4 AT > RT set + K 5 AT > RT set + K 6 AT > RT set 7 AT > RT set - K 5 AT > RT set - 9 K 8

129 Code "Heating circuit ", "Heating circuit ", "Heating circuit 3" group (cont.) Coding in the delivered condition A6:36 Extended economy mode disabled. A7:0 Without mixer economy function (only for heating circuit with mixer). A9:7 With pump idle time (heating circuit pump "Off"): Subject the outside temperature and the set value modification through operating mode changeover. b0:0 With remote control: Heating mode/reduced mode: weather-compensated (change code only for the heating circuit with mixer). Possible change A6:5 Extended economy control enabled, i.e. the burner and A6:35 heating circuit pump will be spped and the mixer closed at a variable value, adjustable between 5 and 35 C plus C. The base value is the adjusted outside temperature. This value is based on the actual outside temperature and a time constant that takes the cooling down of an average building in consideration. A7: With mixer economy function (extended heating circuit pump logic): Heating circuit pump also "Off": If the mixer has been closed for longer than min. Heating circuit pump "On": If the mixer changes control function. If there is a risk of frost. A9:0 Without pump idle time. A9: A9:5 With pump idle time; adjustable from 5. b0: Heating mode: weathercompensated Reduced mode: with room temperature hook-up b0: Heating mode: with room temperature hook-up 9 Service

130 Code "Heating circuit ", "Heating circuit ", "Heating circuit 3" group (cont.) Coding in the delivered condition b:8 With remote control and for the heating circuit, operation with room temperature hook-up must be programmed: Room influence facr 8 (change code only for heating circuit with mixer). b5:0 With remote control: No room temperaturedependent heating circuit pump logic function (change code only for heating circuit with mixer). Possible change Reduced mode: weathercompensated b0:3 Heating mode/reduced mode: with room temperature hook-up b:0 Without room influence. b: b:64 b5: b5:8 Room influence facr adjustable from 64. Heating circuit pump logic function, see the following table. Parameter With heating circuit pump logic function: address b5:... Heating circuit pump "Off" Heating circuit pump "On" RT actual > RT set + 5 K RT actual < RT set + 4 K RT actual > RT set + 4 K RT actual < RT set + 3 K 3 RT actual > RT set + 3 K RT actual < RT set + K 4 RT actual > RT set + K RT actual < RT set + K 5 RT actual > RT set + K RT actual < RT set 6 RT actual > RT set RT actual < RT set - K 7 RT actual > RT set - K RT actual < RT set - K 8 RT actual > RT set - K RT actual < RT set - 3 K Coding in the delivered condition C4: Never adjust. C5:0 Electronic minimum flow temperature limit 0 C (only works at standard room temperature). Possible change C5: C5:7 Minimum limit adjustable from 7 C (limited by boiler-specific parameters). 30

131 Code "Heating circuit ", "Heating circuit ", "Heating circuit 3" group (cont.) Coding in the delivered condition C6:74 Electronic maximum flow temperature limit set 74 C. d3:4 Heating curve slope =.4. Possible change C6:0 Maximum limit adjustable from 0 7 C (limited C6:7 by boiler-specific parameters). d3: d3:35 d4:0 Heating curve level = 0. d4: 3 d4:40 d5:0 With external heating program changeover (observe settings of coding addresses "3A", "3b" and "3C" in the "General" group): Heating program switches "Constant central heating with reduced room temperature" or "Standby mode" (subject the settings of the set reduced room temperature). d6:0 Heating circuit pump stays in control mode at signal "External blocking" (observe settings of coding addresses "3A", "3b" and "3C" in the "General" group). d7:0 Heating circuit pump stays in control mode at signal "External demand" (observe settings of coding addresses "3A", "3b" and "3C" in the "General" group). Heating curve slope adjustable from Heating curve level adjustable from d5: The heating program changes "Constant operation with standard room temperature". d6: Heating circuit pump sps at signal "External blocking". d6: Heating circuit pump starts at signal "External blocking". d7: Heating circuit pump sps at signal "External demand". d7: Heating circuit pump starts at signal "External demand". 3 Service

132 Code "Heating circuit ", "Heating circuit ", "Heating circuit 3" group (cont.) Coding in the delivered condition Possible change d8:0 No heating program changeover via extension EA. d8: Heating program changeover via input DE at extension EA. d8: Heating program changeover via input DE at extension EA. d8:3 Heating program changeover via input DE3 at extension EA. E: With remote control: Set day temperature is E:0 Set day temperature adjustable from 3 3 ºC. adjustable at the remote control unit from 0 30 ºC. E: Set day temperature adjustable from 7 37 ºC. E:50 With remote control: No display correction of the actual room temperature. E:0 E:49 E:5 E:99 F:0 Screed function disabled F: F:6 F:8 Time limit for party mode or external heating program changeover via key: 8 h *. Note Observe settings of coding addresses "3A", "3B", "3C" in the "General" group and "d5" and "d8" in the "Heating circuit..." group. Display correction 5 K Display correction 0. K Display correction +0. K Display correction +4.9 K Screed function adjustable in accordance with 6 optional temperature/time profiles (see page 8). F:5 Constant flow temperature 0 C (see page 8). F:0 No time limit *. F: Time limit adjustable from h *. F: * Party mode ends aumatically in the "Heating and DHW" heating program when the system changes over operation with standard room temperature. 3

133 Code "Heating circuit ", "Heating circuit ", "Heating circuit 3" group (cont.) Coding in the delivered condition Possible change F8:-5 Temperature limit for terminating reduced mode -5 ºC, see example on F8:+0 F8:-60 Temperature limit adjustable from C. page 86. F8:-6 Function disabled. Observe the setting of coding address "A3". F9:-4 Temperature limit for raising the set reduced room temperature -4 ºC, see example on page 86. F9:+0 F9:-60 Temperature limit for raising the set room temperature the value selected for standard mode adjustable from C. FA:0 Raising the set boiler water or flow temperature by 0 % when changing from operation with reduced room temperature operation with standard room temperature. See example on page 87. FA:0 FA:50 Temperature rise adjustable from 0 50 %. Fb:60 Duration of the set boiler water or flow temperature increase (see coding address "FA") 60 min. See example on page 87. Fb:0 Fb:50 Duration adjustable from min; step min. Service 33

134 Designs Connection and wiring diagram A Type KOB: Keys 34 B Type KOB: Terminals

135 Designs Connection and wiring diagram (cont.) A Main PCB A Power supply unit PCB A3 PCB A5 Programming unit A6 Boiler coding card A Oplink PCB X Electrical interfaces F Fuse F6 High limit safety cut-out 0 C (00 C) F7 Thermostat 75 C (87 C, 95 C) K-K4 Relay S ON/OFF switch S Test key (only for type KOB) U U3 Opcoupler V Fault indicar (red) V On indicar (green) avg KM BUS subscriber (accessory) a:a Two-stage/modulating burner extension (part of the standard boiler delivery) 30 V~ plugs sö Heating circuit pump A (accessories) sa Circulation pump for cylinder heating (accessory) sk DHW circulation pump (on site) fö Power supply, 30 V/50 Hz fa Oil/gas burner (connection according DIN 479) lh Power supply, accessories/external demand/external blocking X External burner start (stage ) LV plugs! Outside temperature sensor (radio clock receiver (accessory)) Boiler water temperature sensor % Cylinder temperature sensor ) Buffer temperature sensor (accessory) ag Flue gas temperature sensor (accessories) Service 35

136 Components Boiler coding card Boiler Boiler coding card Display in brief scan Identification Part no., spare part Vila 00, type VBA, VXA 00e: Vila, type VEA Viladens 300-T, type VW3B Virond 00, type VRB, 8 63 kw Virond, type ROD Virondens 00-T, type BR Virondens -F, type BSA Virond 00, type VRB, 80 00c6: kw Vigas 00-F, type GS, 7 44 kw Vigas 00-F, type GS, 60 kw 00f0: Sensors Boiler water, cylinder, buffer, flow and room temperature sensor Checking sensors Note The flow temperature sensor (contact temperature sensor) is inserted in socket "" of the extension kit (see page 43). The room temperature sensor is connected at terminals 3 and 4 in the Vitrol 300A. Installation and service instructions for Vitrol 300A 36

137 Components Sensors (cont.) Resistance in kω Temperature in C. Pull corresponding plug.. Check the sensor resistance and compare it with the curve. 3. In the case of severe deviation, check the installation and replace the sensor if required. Specification Sensor Boiler water temperature sensor Cylinder/buffer temperature sensor Flow temperature sensor Room temperature sensor Sensor type NTC 0 kω IP rating Permiss. ambient temperature During operation During srage and transport IP C C IP C C IP C C IP C C Service 37

138 Components Sensors (cont.) Outside temperature sensor Check outside temperature sensor Resistance in kω Temperature in C. Pull plug!.. Check the sensor resistance across plug terminals "" and "" and compare with curve. 3. Where actual values deviate severely from the curve values, disconnect the wires at the sensor and repeat test on the sensor itself. 4. Subject result, replace the lead or the outside temperature sensor. Specification Sensor type NTC 0 kω IP rating IP 43 Permissible ambient temperature during operation, srage and C transport Flue gas temperature sensor, part no The sensor monirs the selected limit value (see coding address "F"). 38

139 Components Sensors (cont.) Check flue gas temperature sensor Resistance in kω Temperature in C. Pull plug ag.. Check the sensor resistance and compare it with the curve. 3. In the case of severe deviation, check the installation and replace the sensor if required. Specification Sensor type NTC 0 kω IP rating IP 60 Permiss. ambient temperature During operation C During srage and transport C Radio clock receiver, part no Service The radio clock receiver sets the time at the control unit and any remote control that may be connected, fully aumatically. 39

140 Components Radio clock receiver, part no (cont.) A B E 3 C D A Outside temperature sensor B Radio clock receiver C Green LED D Red LED E Aerial Connection -core lead, length max. 35 m with a cross-section of.5 mm. Check reception During reception, the green LED on the radio clock receiver flashes. If the red LED flashes, rotate the aerial until reception is confirmed by the flashing of the green LED. Specification IP rating IP 43 Permissible ambient temperature during operation, 40 + srage and transport 70 C 40

141 Components Extension kit for heating circuit with mixer Part no Part no For wall mounting For mixer installation Components: Components: Mixer PCB with terminals for separate Mixer PCB with mixer mor for mixer mor Viessmann mixer Flow temperature sensor of the contact Flow temperature sensor of the contact temperature sensor with connect- temperature sensor with connecting cable 5.8 m and plug ing cable.0 m and plug Plug for connecting the heating circuit Plug for connecting the heating circuit pump, mixer mor, power cable and KM pump, power cable and KM BUS lead BUS lead Service 4

142 Components Extension kit for heating circuit with mixer (cont.) A Main PCB F Fuse S Rotary selecr (for settings, see the following table) Plug 30 V~ sö Heating circuit pump (on site) fö Power supply 30 V/50 Hz föa Power supply connection of accessories gs Mixer mor 4

143 Components Extension kit for heating circuit with mixer (cont.) LV plugs? Flow temperature sensor aj Return temperature sensor (here without function) avg KM BUS cable for connection with the control unit and an additional extension kit Rotary selecr adjustment Heating circuit affected by the mixer Rotary selecr S Heating circuit with mixer M "" (delivered condition) Heating circuit 3 with mixer M3 "4" Specification Rated voltage 30 V~ Rated frequency 50 Hz Rated current A Power consumption Wall mounting.5 W Installation on mixer 5.5 W Protection class I IP rating IP 3 D EN 60 59; ensure through design/installation Permissible ambient temperature During operation C During srage and transport C Rated relay output breaking capacity Heating circuit pump sö () A 30 V~ Mixer mor 0. (0.) A 30 V~ Service 43

144 Components Extension kit for heating circuit with mixer (cont.) Mixer mor, part no Specification Rated voltage 30 V Rated frequency 50 Hz Power consumption 4 W IP rating IP 4 Torque 3 Nm Runtime for 90 0 s A A Plug within the mixer mor Mixer "Open" Mixer "Closed" Checking the rotational direction of the mixer mor After being switched on, the extension kit implements a self-test. During this, the mixer is opened and closed again. Note the rotational direction of the mixer mor during its self-test. Then set the mixer manually "Open" again. Note The flow temperature must now rise. If the temperature drops, either the mor is turning in the wrong direction or the mixer set is incorrectly fitted. Mixer installation instructions 44

145 Components Extension kit for heating circuit with mixer (cont.) Changing the rotational direction of the mixer mor (if required) gs ~ BU. Remove the upper casing cover of the extension kit. Danger An electric shock can be lifethreatening. Before opening the boiler, disconnect from the mains voltage, for example at the fuse or the mains isolar.. At plug gs, swap the cores at terminals and. 3. Fit the casing cover. Service 45

146 Components Temperature limiter for limiting the maximum temperature Immersion thermostat, part no Contact thermostat, part no C L? N L? N Electromechanical temperature limiter according the liquid expansion principle. Switches the heating circuit pump off when the set value has been exceeded. In such cases, the flow temperature reduces only slowly, i.e. it may be several hours before the system restarts again aumatically. B Specification Setting range C Screw terminals for.5 mm Terminals Switching differential Immersion thermostat max. K Contact thermostat max. 4 K A M ~ A Heating circuit pump B Control thermostat (temperature limiter) C Plug sö of the thermostat (temperature limiter) the control unit 46

147 Components Extension EA DE Digital input DE Digital input DE3 Digital input V 0-0 V input fö Power supply fö A abj avg Power supply for additional accessories Central fault message facility (potential-free) KM BUS Service Digital data inputs DE DE3 Functions: External heating program changeover for each heating circuit External blocking External blocking with fault message input External demand with minimum boiler water temperature Fault message input Short operation of the DHW circulation pump 47

148 Components Extension EA (cont.) The hooked-up contacts must correspond protection class II. Input function assignment Select the input functions by means of the following codes in the "General" group at the boiler control unit: DE: Coding address "3A" DE: Coding address "3b" DE3: Coding address "3C" Assigning the heating program changeover function the heating circuits The allocation of the heating program changeover the relevant heating circuit is selected via coding address "d8" in the "Heating circuit..." group: Code "d8:": Changeover via input DE Code "d8:": Changeover via input DE Code "d8:3": Changeover via input DE3 The effect of the heating program changeover is selected via coding address "d5" in the"heating circuit..." group. Effect of external blocking function on the pumps See also page 4. The effect on the relevant heating circuit pump is selected via coding address "d6" in the "Heating circuit..." group. The effect on a circulation pump for cylinder heating is selected via coding address "5E" in the "DHW" group. Effect of the external demand function on the pumps See also page 4. The effect on the relevant heating circuit pump is selected via coding address "d7" in the "Heating circuit..." group. The effect on a circulation pump for cylinder heating is selected via coding address "5F" in the "DHW" group. DHW circulation pump runtime for brief operation The runtime is set via coding address "3d" in the "General" group. Duration of the changeover Contact permanently closed: The changeover is enabled as long as the contact is closed. Contact only closed briefly via key: The changeover is enabled for the time selected in the coding address "F" in the "Heating circuit..." group. 48

149 Components Extension EA (cont.) Analogue input 0-0 V The 0-0 V hook-up provides an additional set boiler water temperature: 0 - V Seen as "no default set boiler water temperature" Coding address "E" in the "General" group: "E:0" Temperature demand adjustable in the range of 0 00 C V 0 C set value modification 0 V 00 C set value modification "E:" Temperature demand adjustable in the range of 30 0 C V 30 C set value modification 0 V 0 C set value modification Output abj Connection of a central fault message facility. Select the function of output abj via coding address "36" in the "General" group. External extension H5, part no For the following connections: External burner blocking External safety equipment Flue gas damper X Service A Vitronic B External extension H5 C Burner 49

150 Components External extension H5, part no (cont.) External connections at plug abö! Please note 'Live' contacts lead short circuits or phase failure. The external connections must be potential-free. Plug abö must remain plugged in, even if no connection is made. C D P STB ON ON N STB TR TR A 50 B E P A Jumper "STB" "STB" B Jumper "TR" "ON/TR" C External burner blocking (floating contact) External burner blocking. Remove jumper "TR" "ON/TR".. Connect the floating contact. Opening this contact leads a controlled shutdown. D Minimum pressure limiter E Other external safety equipment! Please note Connecting external control units can damage the boiler. Connect only safety shutdown equipment, e.g. temperature limiter, these terminals. When the heating system is shut down, the heating system is not protected against frost and the boiler is not held at the lower boiler water temperature. External safety equipment. Remove jumper "STB" "STB". 50

151 Components External extension H5, part no (cont.). Connect the external safety equipment in series. Provisional operation (burner stage ) Insert jumper "TR" "ON/TR" at "TR" "ON". Morised flue gas damper, part no and STB EIN EIN N STB TR TR A 50 F 3 M ~ C B A Plug abö B Flue gas damper mor C Limit switch If making this connection, remove jumper "TR ON/TR". Function check The burner may only start after the flue gas damper has opened 90% of the pipe cross-section and the limit switch has been activated. You can check the switch function by measuring its voltage: Flue gas damper closed (switch open) No voltage at terminal "3" Flue gas damper open (switch closed) Voltage at terminal "3" Service 5

152 Components Secondary air device Viair, part no , A To the burner B To the control unit Colour coding DIN IEC BK black GN/YE green/yellow Function check Press the rotary selecr at the mor and simultaneously turn it its central position. Enable burner from the control unit The rotary selecr should turn wards "3". Burner OFF The rotary selecr should turn wards "5". 5

153 Components Secondary air device Viair, part no (cont.) Emergency mode Press the rotary selecr on the mor and turn clockwise the limit, i.e. beyond position "3". Service 53

154 Parts lists Type KOB Ordering individual parts The following information is required: Serial no. (see type plate A) Position number of the required part (from this parts list) Obtain standard parts from your local supplier. Parts 000 Cable clamp 0004 Sp dial for thermostat 0005 Cover plug for high limit safety cut-out 000 Front fascia 00 Front user panel, r.h. botm 003 Casing upper part (drawer) 004 PCB cover, complete 006 Casing, lower part 007 Back cover 008 Programming unit 0030 High limit safety cut-out 003 Temperature controller 0033 Thermostat rotary selecr 0035 Single pole push butn (test key "TÜV") 0036 Two-pole switch (ON/OFF switch) 0040 Outside temperature sensor 004 Contact temperature sensor 004 Temperature sensor with plug 0050 PCB 005 Oplink PCB 005 Main PCB 0054 Power supply unit PCB 0065 Burner connecting cable with plug fa (for boilers with pressure-jet oil/gas burners) 0070 Power cable with plug fö core burner connecting cable with plug fa (for boilers with an intermittent ignition system) core burner connecting cable with plug fa (for boilers with an intermittent ignition system) 0074 Connecting cable 008 Operating instructions 008 Short operating instructions 0084 Installation and service instructions 0090 Fuse 6.3 A (slow)/50 V~ 009 Fuse holder 0097 Snap-in hook 0098 Strain relief fittings and cable entries 0099 Fixing screw pack 000 Plugs for sensors (3 pce) 00 Plugs for pumps (3 pce) and plug lh 00 Plugs "X" (3 pce) 004 Power supply plugs fö (3 pce) 009 Burner plugs fa, lö, aba and a:a 54

155 Parts lists Type KOB (cont.) A Service 55

156 Parts lists Type KOB (cont.)

157 Parts lists Type KOB Ordering individual parts The following information is required: Serial no. (see type plate A) Position number of the required part (from this parts list) Obtain standard parts from your local supplier. Parts 0004 Sp dial for thermostat 0005 Cover plug for high limit safety cut-out 0007 Front fascia 000 Casing, p part 00 Front user panel 004 Control thermostat holder 006 Casing, lower part 007 Casing, upper part (back) 008 Programming unit 0030 High limit safety cut-out 003 Temperature controller 0033 Thermostat rotary selecr 0036 Two-pole switch (ON/OFF switch) 0040 Outside temperature sensor 004 Contact temperature sensor 004 Temperature sensor with plug 0050 PCB 005 Oplink PCB 005 Main PCB 0054 Power supply unit PCB 0065 Burner connecting cable with plug fa (for boilers with pressure-jet oil/gas burners) core burner connecting cable with plug fa (for boilers with an intermittent ignition system) core burner connecting cable with plug fa (for boilers with an intermittent ignition system) 0074 Connecting cable 008 Operating instructions 008 Short operating instructions 0084 Installation and service instructions 0090 Fuse 6.3 A (slow)/50 V~ 009 Fuse holder 0098 Strain relief fittings and cable entries 0099 Fixing screw pack 000 Plugs for sensors (3 pce) 00 Plugs for pumps (3 pce) and plug lh 00 Plugs "X" (3 pce) 004 Power supply plugs fö (3 pce) 009 Burner plugs fa, lö, aba and a:a Service 57

158 Parts lists Type KOB (cont.)

159 Parts lists Type KOB (cont.) A Service 59

160 Specification Specification Rated voltage Rated frequency Rated current Power consumption Protection class IP rating 30 V 50 Hz 6 A 5 W I IP 0 D EN 60 59, ensure through design/installation Function Type B EN Permiss. ambient temperature During operation C Installation in living spaces or boiler rooms (standard ambient conditions) During srage and transport C Rated relay output breaking capacity at 30 V : sö Heating circuit pump 4 () A~ * sa Circulation pump for cylinder heating 4 () A * sk DHW circulation pump 4 () A * fa Burner plug 4 () A lö Burner plug (two-stage) (0.5) A lö Burner plug (modulating) 0. (0.05) A Total Max. 6 A~ * Total max. 4 A~ 60

161 Settings and equipment Settings and equipment Tick the adjusted function. Function in the delivered condition Modified function High limit safety cut-out set 0 ºC = Changed...ºC Thermostat set 75 ºC = Changed...ºC Remote control With remote control: Control unit without remote control = Vitrol 00A at heating circuit = Vitrol 00A at heating circuit = Vitrol 00A at heating circuit 3 = Vitrol 300A at heating circuit = Vitrol 300A at heating circuit = Vitrol 300A at heating circuit 3 Electronic maximum limit Heating circuit 74 ºC = Changed...ºC Heating circuit 74 ºC = Changed...ºC Heating circuit 3 74 C = Changed...ºC Electronic minimum limit Heating circuit 0 C = Changed...ºC Heating circuit 0 C = Changed...ºC Heating circuit 3 0 C = Changed...ºC Heating curves Heating curves for: Slope =.4 = Heating circuit Level = 0 Changed - Slope... - Level... = Heating circuit Changed - Slope... - Level... = Heating circuit 3 Changed - Slope... - Level... Differential temperature 8 K = Changed...K Service 6

162 Settings and equipment Settings and equipment (cont.) Function in the delivered condition Modified function Heating circuit pumps In the "Heating and DHW" heating program, the heating circuit pumps are switched off if the outside temperature exceeds the set room temperature by more than K. Characteristics in the "Only DHW" program: The heating circuit pumps are only started when there is a risk of frost. Any connected mixers remain closed (switching control function when there is a risk of frost). Heating circuit Heating mode/reduced mode Weather-compensated Heating circuit Heating mode/reduced mode Weather-compensated Heating circuit 3 Heating mode/reduced mode Weather-compensated 6 = The heating circuit pump for heating circuit remains on. = The heating circuit pump for heating circuit remains on. = The heating circuit pump for heating circuit 3 remains on. = The heating circuit pumps are switched off before the set room temperature is achieved. = The heating circuit pumps are controlled according coding address "b5". = Heating circuit pumps for heating circuits with mixer are switched off if the mixer has been closed for longer than min. = Heating mode: weather-compensated, Red. mode: with room temperature hook-up = Heating mode: with room temperature hook-up, Red. mode: weather-compensated = Heating mode/red. mode: with room temperature hook-up = Heating mode: weather-compensated, Red. mode: with room temperature hook-up = Heating mode: with room temperature hook-up, Red. mode: weather-compensated = Heating mode/red. mode: with room temperature hook-up = Heating mode: weather-compensated, Red. mode: with room temperature hook-up

163 Settings and equipment Settings and equipment (cont.) Function in the delivered condition Modified function = Heating mode: with room temperature hook-up, Red. mode: weather-compensated = Heating mode/red. mode: with room temperature hook-up Frost protection Frost protection enabled from ºC = Frost protection for heating circuit cancelled. = Frost protection for heating circuit cancelled. = Frost protection for heating circuit 3 cancelled. = Frost protection for heating circuit changed...ºc = Frost protection for heating circuit changed...ºc = Frost protection for heating circuit 3 changed...ºc Switching hysteresis Burner switching hysteresis: 4 K = = Heating system with DHW heating: DHW is heated at the times when DHW heating is enabled. ERB50 function ERB80 function With cylinder priority control. = Without cylinder priority control. Setting range for DHW temperature 0 60 C. = Setting range for DHW temperature 0 95 C. Circulation pump for cylinder heating = Circulation pump starts immediately. starts if the boiler water temper- ature is 7 K higher than the actual DHW temperature. Circulation pump for cylinder heating runs on for a maximum of 0 min after cylinder heating. = During cylinder heating, the circulation pump for cylinder heating is switched off when the set DHW temperature is reached. Without adaptive cylinder control. = With adaptive cylinder control. Service 63

164 Settings and equipment Settings and equipment (cont.) Function in the delivered condition DHW circulation pump on only during active cylinder heating. Without auxiliary function for DHW heating. Modified function = DHW circulation pump on according its individual time program. = With auxiliary function for DHW heating; input of a second set value of...ºc. Connected accessories = Extension kit for heating circuit with mixer, heating circuit = Extension kit for heating circuit with mixer, heating circuit 3 = KM BUS distribur = Radio clock receiver = Flue gas temperature sensor = Temperature limiter for underfloor heating = Solar control module, type SM = Visolic = Vicom 00 = Vicom 00 = Vicom 300 = Vihome 300 = Two-stage/modulating burner extension = Viair = Mor-controlled flue gas damper = Extension EA = External extension H5 64

165 Keyword index Keyword index A Acknowledging a fault display...68 Adaptive cylinder heating...9 Adjusting the thermostat...37 Apartment block...90 Aumatic operation...90 Auxiliary circuit, DHW heating...9 Auxiliary circuits, boiler water temperature control...78 Auxiliary function for DHW heating...9 B Boiler coding card...34 Boiler temperature sensor...38 Boiler water temperature control...78 Boiler water temperature sensor...36 Brief scans...65 Buffer temperature sensor...38, 36 Burner Connecting...44 Switching hysteresis...79 Burner fuel consumption...7 C Calling up a fault message...68 Calling up the service menu...64 Changing the language...55 Checking outputs...57 Checking sensors...58 Code Calling up...94 Coding addresses...95 Code Calling up...08 Coding addresses...08 Commissioning...55 Communication module LON...6 Components...36 Connection and wiring diagram...34 Control unit Assembling...5 Opening...53 Cylinder priority control 8, 9, 0, 6 Cylinder temperature control...89 Cylinder temperature sensor...38, 36 D Detached house...90 DHW circulation pump...9 DHW heating...90, 9 DHW temperature...8 Differential temperature...86 E Economy mode...8 Electrical connections, overview...3 Emergency mode...53 Ending the service...64 ERB50 function...79 ERB80 function...79 Extended economy mode...8 Extension EA...47 Extension kit for heating circuit with mixer...4 Extension of two-stage/modulating burners...45 Extension of two-stage burners...47 External blocking...4 External burner start...40 External demand...4 External extension H F Fault codes...68 Fault display...68 Fault hisry...68 Fault manager...6 Fault memory...68 Flow temperature control...86 Flow temperature sensor...36 Flue gas temperature sensor...38, 38 Frost protection...85 Fuel consumption

166 Keyword index Keyword index (cont.) H Heating circuit control...8 Heating circuit pump logic...8 Heating circuit pump logic function...8 Heating curve...58 Heating curve level...60 Heating curve slope...60 Heating system schemes...7 Heat-up time reduction...87 High limit safety cut-out Adjusting...34 Testing...55 L LON...6 Fault moniring...6 Setting subscriber numbers...6 LON subscriber check...6 M Main switch...49 Matching coding addresses...56 Mixer mor...44 Modulating burner (connection)...45 O Outside temperature...8 Outside temperature sensor...38, 38 P Parts lists Type KOB...54 Type KOB...57 PCBs...3 Power cable...49 Power supply...49 Priority control...8, 9 Provisional burner operation...4 Pumps Connecting...39 Run-on...9 R Radio clock receiver...39 Raising the reduced room temperature...86 Reduced room temperature, raising..86 Reduced set room temperature...60 Relay test...57 Removing a fault display...68 Resetting codes...94, 08 Room temperature...8 Room temperature sensor...36 Rotational direction mixer mor...44 S Screed drying...8 Screed drying function...8 Secondary air device Viair...5 Selecting the set room temperature...59 Sensors...38 Service display Resetting...67 Scanning...67 Service level Calling up...64 Exiting...64 Set DHW temperature...9 Setting and equipment...6 Setting the date...55 Setting the time...55 Solar control module...9 Solar control unit...9 Specification...60 Standard set room temperature...60 Strain relief...33 Switching hysteresis Heat demand-dependent...79 Permanent...79 System dynamics...85 System equipment...6 System schemes

167 Keyword index Keyword index (cont.) T Temperature limiter...46 Time program Central heating...8 DHW heating...90 Two-stage burner (connection)...45, 47 Visolic...9 Vitronic 00-H...6 W Wiring diagram...34 V Viair...5 Vicom

168 Printed on environmentally friendly, chlorine-free bleached paper Applicability Serial No.: Viessmann Werke GmbH&Co KG D-3507 Allendorf Telephone: Fax: Viessmann Limited Hornwood 30, Telford Shropshire, TF 7YP, GB Telephone: Fax: Subject technical modifications.