Viessmann Vitocal 350-G Installation And Service Instructions For Contractors Download Page 70

Page: 70 / 92

Please note

Impacts, compression and tensile loads can
cause damage to the outside panels of the
appliance.

Never

apply loads/weight to the top, front or

side panels of the appliance.

aYH

Fig. 42

Casing door

Drain the primary and secondary sides: For drain
valves, see page 65.

Please note

Steep tilting of the compressor in the heat pump
can result in appliance damage.
Max. tilting angle: 45° for a very short time

Maintenance

Removing the heat pump module

5855006

Maintenance

Summary of Contents for Vitocal 350-G

Page 1: ...actors VIESMANN Vitocal 350 G Type BW BWS 351 B20 to B42 Heat pump with electric drive 1 and 2 stage Brine water heat pump 20 5 to 84 6 kW With conversion kit to water water heat pump 25 4 to 104 6 kW VITOCAL 350 G 5855006 GB 8 2019 Please keep safe ...

Page 2: ...sed contractors Work on the refrigerant circuit may only be carried out by authorised refrigera tion engineers Work on electrical equipment must only be carried out by a qualified elec trician The system must be commissioned by the system installer or a qualified per son authorised by the installer Regulations to be observed National installation regulations Statutory regulations for the preventio...

Page 3: ... objects such as heating or water pipes to discharge static loads Please note Electronic assemblies can be dam aged by electrostatic discharge Prior to commencing work touch earthed objects such as heating or water pipes to discharge static loads Work on the refrigerant circuit Refrigerants are air displacing colour less odourless gases R32 forms flammable mixtures with air R410A is not flammable ...

Page 4: ...nd secondary sides Repair work Please note Repairing components that fulfil a safety function can compromise the safe operation of the system Replace faulty components only with genuine Viessmann spare parts Auxiliary components spare and wearing parts Please note Spare and wearing parts that have not been tested together with the system can compromise its func tion Installing non authorised com p...

Page 5: ...ns in the heat pump control unit type BW 351 B 23 Main PCB function components 230 V 23 Expansion PCB on main PCB 230 V components 27 Cross connect PCB message and safety connections 31 Controller and sensor PCB sensors 33 Connecting the primary circuit flow return temperature sensor 2 stage heat pump 34 Swimming pool heating 35 Power supply 35 Heat pump control unit power supply 230 V 36 Compress...

Page 6: ...p module 72 6 Commissioning service reports Hydraulic parameter report 73 Control parameter report 73 7 Specification Specification for brine water heat pumps 84 Specification for water water heat pumps 86 8 Appendix Commissioning order 87 Final decommissioning and disposal 87 9 Certificates Declaration of conformity 88 10 Keyword index 89 Index Index cont 5855006 ...

Page 7: ...lows Symbol Meaning Steps required during commissioning Not required during commissioning Steps required during inspection Not required during inspection Steps required during maintenance Not required during maintenance Intended use The appliance is only intended to be installed and operated in sealed unvented heating systems that comply with EN 12828 with due attention paid to the associated inst...

Page 8: ...to a water water heat pump The Vitocal 350 G brine water heat pump type BW 351 B becomes a water water heat pump in con junction with the conversion kit accessories A sepa rate well circuit provides the primary circuit with heat ing energy via a separating heat exchanger accesso ries The components of the well circuit and primary circuit are controlled by the heat pump control unit Central heating...

Page 9: ...nding on the hydraulic connection heat pump stage 2 can be used both for central heating and for DHW heating A separate secondary pump and circu lation pump for cylinder heating both accessories are therefore required for the heat pump stage 2 System examples Available system examples See www viessmann schemes com Spare parts lists Information about spare parts can be found on the Viessmann spare ...

Page 10: ...0 1026 1086 400 V 230 V 42 V A B C D B C D A Fig 1 A Secondary circuit return B Secondary circuit flow C Primary circuit flow heat pump brine inlet D Primary circuit return heat pump brine outlet Preparing for installation Requirements regarding on site connections 5855006 Installation ...

Page 11: ...B C F G H E D A Fig 2 Type BWS on the left type BW on the right A E Secondary circuit return B F Secondary circuit flow C G Primary circuit flow heat pump brine inlet D H Primary circuit return heat pump brine outlet Siting and transport requirements Transport For handling purposes the heat pump module can be removed See page 70 Preparing for installation Requirements regarding on site connections...

Page 12: ...ote Overloading the floor can result in damage to the building structure Observe the permissible floor load Take the total weight of the appliance into account Total weight Type Weight in kg BW 351 B20 270 351 B27 285 351 B33 310 351 B42 315 Type Weight in kg BWS 351 B20 265 351 B27 280 351 B33 305 351 B42 310 To prevent the transmission of structure borne noise never site the appliance above ceil...

Page 13: ...on site installation and site conditions Note Observe clearances for installation and mainte nance Additional strain relief clamps are required for the power cables if the clearance behind the heat pump is more than 80 mm Preparing for installation Siting and transport requirements cont 5855006 Installation ...

Page 14: ... on page 11 Levelling the heat pump 4x Fig 5 Note If the adjustable feet are used to compensate for an uneven floor max 10 mm the pressure load on the feet must be distributed evenly Installation sequence Positioning the heat pump 5855006 Installation ...

Page 15: ...e appliance without first removing the transport brackets will cause vibrations and excessive noise Undo the transport brackets and secure them to the base support 3 4x 4x 4x 1 2 4 Fig 6 Installation sequence Positioning the heat pump cont 5855006 Installation ...

Page 16: ...ll required components with a suitably designed plate heat exchanger for the cooling circuit must be provided on site An instantaneous heating water heater on site can only be installed outside the heat pump The system flow temperature sensor must be installed in the flow direction downstream of the instantaneous heating water heater Installation sequence Positioning the heat pump cont 5855006 Ins...

Page 17: ...s lead to leaks vibration and appliance dam age Connect on site lines so that they are free of load and torque stress Please note Leaking hydraulic connections lead to appli ance damage Ensure the diaphragm grommets at the hose outlets are seated correctly Seal hose out lets with sealing tape if necessary 4 Insulate pipes inside the building to prevent heat and vapour diffusion 5 Charge the primar...

Page 18: ...al connection Preparing the electrical connections Cables For cable lengths and cable cross sections see the following tables For accessories Cables with the required number of cores for exter nal connections Prepare an on site distribution box Danger Damaged wiring insulation wiring can lead to serious injury from electrical current and result in appliance damage Route cables so that they cannot ...

Page 19: ...WS 351 B27 5 x 4 0 mm2 50 m Type BW BWS 351 B33 5 x 4 0 mm2 50 m Type BW BWS 351 B42 5 x 6 0 mm2 50 m Heat pump control unit 230 V Without power OFF 3 x 1 5 mm2 40 m With power OFF 5 x 1 5 mm2 40 m Installing the programming unit type BW 351 B 3 2 1 2x Fig 8 Installation sequence Electrical connection cont 5855006 Installation ...

Page 20: ...uting cables to the wiring chamber When routing the on site power cables observe the location of the cable entries into the appliance through its back panel See page 10 Installation sequence Electrical connection cont 5855006 Installation ...

Page 21: ... ties supplied 2 Route 230 V cables through the 230 V opening to the terminal area of the heat pump control unit Note Route LV leads and 230 V cables as far apart as possible 3 Route the compressor power cable through the 400 V opening to the terminal area For power supply see from page 35 Installation sequence Electrical connection cont 5855006 Installation ...

Page 22: ...2 V connecting leads With plugs B aJB and aVG in the wiring chamber of heat pump stage 1 type BW With plugs B aJB and aVG in the wiring chamber of heat pump stage 2 type BWS C 230 V connecting cables With plugs without ID in the wiring chamber of heat pump stage 2 type BWS With plugs Xd Ö and aBH in the wiring chamber of heat pump stage 1 type BW D Wiring chamber heat pump stage 1 type BW Installa...

Page 23: ... output of all components connected directly to the heat pump control unit e g pumps valves message facilities contactors must not exceed 1000 W If the total output is 1000 W the individual rating of a component e g pump valve message facility contactor can be greater than specified However the breaking capacity of the corresponding relay must not be exceeded The stated current indicates the max s...

Page 24: ...rter valve central heat ing DHW heating Connection values Output 130 W Voltage 230 V Max switching current 4 2 A Circulation pump for cylinder heat ing 211 5 NC Control of the natural cooling function Circuit on site Connection values Output 10 W Voltage 230 V Max switching current 4 2 A Plug sYS Terminals Function Explanation 212 1 AC Control of the active cooling function Circuit on site Connect...

Page 25: ... 1 C B X2 N A X1 Fig 13 Connecting the temperature limiter part no 7151728 7151729 B M 1 C B sÖ X2 N A X1 Fig 14 Connection A to con trol unit Circulation pump C Heating circuit without mixer A1 HC1 Without heating water buffer cylinder 211 2 Secondary pump With heating water buffer cylinder 212 2 Heating circuit pump A1 HC1 Heating circuit with mixer M2 HC2 225 1 Heating circuit pump M2 HC2 Conne...

Page 26: ...circuit M3 HC3 active 0 V No demand Breaking capacity 230 V 0 15 A Note If heat pump stage 2 is connected the external hook up for heating cooling circuits is not possible Plug sYH Terminals Function Explanation 216 1 A1 External hook up heating cooling cir cuits Central heating demand heating cir cuit A1 HC1 Or 230 V digital input 230 V Central heating demand for heating circuit A1 HC1 active 0 V...

Page 27: ...22 2 Control of mixer motor for external heat generator Mixer OPEN signal Connection values Output 10 W Voltage 230 V Max switching current 0 2 0 1 A 222 3 222 4 Control of external heat generators and 1 high limit safety cut out each on site max 70 C to switch off or switch between the following compo nents Floating contact Connection values contact breaking capacity Voltage 230 V not suitable fo...

Page 28: ...to protect the heat pump max 70 C K1 Relay Sizing according to the external heat generator Observe safety instructions Plug sXD Terminals Function Explanation 223 1 223 2 U Central fault message Floating contact Closed Fault Open No fault Not suitable for safety LV Connection values contact rating Voltage 230 V Max switching current 4 2 A Central fault message 223 1 L1 230V 0 5 A N 223 2 A Fig 17 ...

Page 29: ...witching current 4 2 A 224 5 2 Circulation pump for cylinder heating for heat pump stage 2 Connection values Output 130 W Voltage 230 V Max switching current 4 2 A 224 6 Connect cylinder loading pump and 2 way shut off valve in parallel Connection values Output 130 W Voltage 230 V Max switching current 4 2 A Cylinder loading pump DHW side M 2 way shut off valve 224 7 Connection values Output 100 W...

Page 30: ...25 1 M2 r Heating circuit pump of the heating circuit with mixer M2 HC2 Connect a temperature limiter to restrict the maximum temperature for underfloor heating circuits if installed in series Connection values Output 100 W Voltage 230 V Max control current 4 2 A 225 2 M2 Mixer motor control heating circuit M2 HC2 Signal mixer CLOSE Connection values Output 10 W Voltage 230 V Max control current 0...

Page 31: ...ponents X3 1 Switched phase X3 2 X3 14 External blocking signal External blocking of compressor and pumps mixer in control mode or CLOSE Requires floating contact Closed Power OFF enabled Open No power OFF Breaking capacity 230 V 2 mA Note The system may no longer be protected against frost These and further external functions e g provision of external set values can alternatively be connected via...

Page 32: ...series if 2 safety components are instal led Insert jumper if no safety components are instal led P Pressure switch primary circuit and or Frost stat or Jumper X3 10 X3 11 Fault message lag heat pump in a cascade or Jumper Requires floating contact Closed No fault Open Fault Breaking capacity 230 V 0 15 A No jumper should be installed if a message contact is connected X3 12 X3 13 External demand s...

Page 33: ... secondary circuit for heat pump stage 2 Pt500A PTC aJB X25 13 X25 14 Return temperature sensor secondary circuit for heat pump stage 2 if instal led Pt500A PTC aVG KM BUS wires interchangeable Use the KM BUS distributor accessories if several devices are connected KM BUS subscribers examples Mixer extension kit M3 HC3 Remote control Set the heating circuit allocation on the remote control EA1 ext...

Page 34: ...r 2 stage heat pump 42 V 1 G X 3 aS aS aD aD aS aD aS aD aS aD XG X 2 Fig 20 aS Flow temperature sensor primary circuit aD Return temperature sensor primary circuit Please note Unmarked sensor leads cannot be uniquely identified e g during diagnosis Mark sensor leads Please note If sensor lead wires drift into the adjacent volt age area this can cause appliance damage e g when a wire comes loose S...

Page 35: ... sensor PCB Power supply Isolators for non earthed conductors Install an isolator in the power cable to provide omnipolar separation from the mains for all active conductors corresponding to overvoltage category III 3 mm for full isolation This isolator must be fitted in the permanent electrical installation in line with installation requirements e g mains isolator or upstream circuit breaker We a...

Page 36: ...t own require ments During the power OFF period it is not possible to operate the compressor with power generated on site Protect the power cable for the heat pump control unit with an MCB fuse of max 16 A For accessories and external components that will not be connected to the heat pump control unit pro vide the power supply via the same MCB fuse or at least on the same phase as the heat pump co...

Page 37: ... 3 pole Power supply with power OFF Without on site load disconnect The power OFF signal is connected directly to the heat pump control unit When power OFF is enabled the compressor is forced off in the 2 stage version type BW BWS both compressors are switched off Parameter Output for instant heating water heater at power OFF 790A determines whether and at what stage an instantaneous heating water...

Page 38: ...p control unit connection on cross con nect PCB B Instantaneous heating water heater if installed C Compressor D Premium tariff meter E Ripple control receiver contact open Power OFF enabled F Backup fuse ripple control receiver G Feed TNC system H Economy tariff meter Installation sequence Power supply cont 5855006 Installation ...

Page 39: ...Economy tariff meter K Compressor heat pump stage 2 type BWS 351 B Power supply with power OFF With on site load disconnect The power OFF signal is connected to the on site con tactor of the economy tariff power supply and to the heat pump control unit When power OFF is enabled the compressor and the instantaneous heating water heater if installed are forced off in the 2 stage ver sion types BW BW...

Page 40: ...nit connection on cross con nect PCB B Instantaneous heating water heater if installed C Compressor D Control unit power supply E Mains isolator F Premium tariff meter G Ripple control receiver contact open Power OFF enabled with backup fuse H Economy tariff meter K Feed TNC system Installation sequence Power supply cont 5855006 Installation ...

Page 41: ... PCB B Instantaneous heating water heater if installed C Compressor heat pump stage 1 type BW 351 B D Control unit power supply E Mains isolator F Premium tariff meter G Ripple control receiver contact open Power OFF enabled with backup fuse H Economy tariff meter K Feed TNC system L Compressor heat pump stage 2 type BWS 351 B Installation sequence Power supply cont 5855006 Installation ...

Page 42: ... on site power consumption H Bi directional meter for PV systems to consume power on site Energy taken from power supply utility and energy fed into power supply utility K Meter with reverse block For energy generated by PV system L Isolator for the domestic power supply connection distribution panel M Distribution panel N Domestic distribution box Smart Grid The Smart Grid functions are switched ...

Page 43: ...F signal to terminals X3 6 and X3 7 Do not remove jumper Connection to heat pump control unit Condition Enable Smart Grid 7E80 must be at 4 X3 1 X3 1 B C D A Fig 30 A Main PCB B Connection X3 1 L on the luster terminals C Floating contact 1 The agreement of the power supply utility may be required D Floating contact 2 The agreement of the power supply utility may be required Note If Smart Grid is ...

Page 44: ...s D Contact used in safety chain N O contact E ON OFF indicator Rel F Fault indicator phase failure phase sequence Ph G Fault indicator asymmetry Asy H Fault indicator over undervoltage U LEDs explained in Fig 31 Rel illuminates green All voltages and the rotating field clockwise are OK Ph illuminates red Relay has responded Rotating field is anti clock wise All LEDs off One or more phases have dr...

Page 45: ...ch and or frost stat or jumper supplied Closing the heat pump Please note Leaking hydraulic connections lead to appliance damage Check for leaks in the internal and on site hydraulic connections In the event of leaks switch off the appliance immediately Drain liquid via the drain fill valve Check the seating of seal rings Always replace displaced seal rings Please note If the casing is not securel...

Page 46: ...cal current and component damage in the event of an electrical fault All earth conductor connections must be recon nected The appliance and pipework must be connected to the equipotential bonding of the building 2 1 Fig 34 Installation sequence Closing the heat pump cont 5855006 Installation ...

Page 47: ...47 10x 5 4 3 Fig 35 Installation sequence Closing the heat pump cont 5855006 Installation ...

Page 48: ... and excessive noise Seal the appliance so it is soundproof and dif fusion proof Ensure the diaphragm grommets at the hose outlets are seated correctly Seal hose outlets with sealing tape if necessary A Fig 36 A Diaphragm grommets Installation sequence Checking the diaphragm grommets 5855006 Installation ...

Page 49: ...ri ous injury from electric current Never touch wiring chambers For heat pump control unit and power supplies see page 23 When working on the appliance isolate the system from the power supply e g at a sepa rate MCB fuse or a mains isolator Check that it is no longer live Safeguard against recon nection Danger The absence of component earthing can lead to serious injury from electrical current and...

Page 50: ... working on the refrigerant circuit Work on the refrigerant circuit must only be car ried out by a certified contractor in accordance with EC 842 2006 and 303 2008 Check the floor area valves and all visible solder joints for traces of oil Note Traces of oil indicate a leak in the refrigerant circuit Have your heat pump checked over by a refrigeration engineer Filling and venting the primary side ...

Page 51: ...draulic connections lead to appli ance damage Check for leaks in the internal and on site hydraulic connections In the event of leaks switch off the appli ance immediately Drain off liquid via the drain valve Check the seating of seal rings Always replace displaced seal rings 5 Check system pressure Top up with water if required Minimum system pressure 0 8 bar 80 kPa Permiss operating pressure 2 5...

Page 52: ...ch ON the ON OFF switch on the control unit The prompt Start commissioning appears auto matically on commissioning Note The commissioning assistant can also be started manually To do this press and hold when switching on the control unit progress bar visible When the unit is first commissioned the display is in German Sprache Dansk Cesky Bulgarski Deutsch Wählen mit ê ê ç DE BG CZ DK ê ê Fig 37 Ma...

Page 53: ... 1 Parameter setting OK OK OK OK Commissioning start YES NO Date time setting Time setting OK Instantaneous heating water heater blocked Check Secondary circuit filled Secondary circuit filled Fig 38 Commissioning without the commissioning assistant Activating the service menu The service menu can be activated from any other menu Press and hold OK å simultaneously for approx 4 s Deactivating the s...

Page 54: ...me and the acces sories used Overview of required parameters See the following chapter Detailed explanations of parameters Vitotronic 200 service instructions System scheme System schemes Component System scheme 0 1 2 3 4 5 6 7 8 9 10 11 Heating circuit A1 HC1 X X X X X X M2 HC2 X X X X X X X X M3 HC3 X X X X DHW cylinder X X X X X X Immersion heater 0 0 0 0 0 0 Heating water buffer cylin der 0 0 ...

Page 55: ...With heating circuit M3 HC3 with mixer Circulation pump for cylinder heating Parameter Setting System definition Ó System scheme 7000 With DHW heating DHW circulation pump Parameter Setting Extended menu Ó Time program DHW circulation Set a time program Circulation pump for DHW reheating Parameter Setting External heat source Ó Enable external heat source 7B00 1 Enable external heat source for DHW...

Page 56: ...For parameters for external functions see the following table Heat pump stage 2 Parameter Setting Compressor 2 Ó Enable compressor 5100 1 Output compressor stage 5130 Value corresponding to the rated heat ing output of heat pump stage 2 See type plate Parameters for external functions External demand Parameter Setting Internal hydraulics Ó if necessary Flow temperature external demand 730C Set flo...

Page 57: ... Setting Heating circuit 1 Heating circuit 2 Heating circuit 3 Ó Remote control 2003 or Remote control 3003 or Remote control 4003 2 Note If heat pump stage 2 is connected the external hook up for heating cooling circuits is not possible Cooling function parameters Parameter Setting Cooling Ó Cooling function 7100 0 No cooling 1 Natural cooling with NC Box with out mixer accessory 2 Natural coolin...

Page 58: ...t is responded to with No the instantaneous heating water heater will not be enabled Set Enable instan taneous heating water heater 7900 to 2 Fill the secondary circuit Confirm prompt Sec ondary circuit filled with Yes Enable instantaneous heating water heater for DHW heating Parameter Setting DHW Ó Enable electric heaters for DHW heating 6015 1 Parameters for external heat generators Parameter Se...

Page 59: ...itovent 200 C Parameter Setting Ventilation Ó Vitovent enable 7D00 2 Vitovent 200 C Further enabling for Vitovent 200 C if necessary Parameter Setting Ventilation Ó Enable preheater bank electric 7D01 0 Defrosting without preheating coil Strategy passive frost pro tection 7D2C 1 Frost protection with preheating coil defrosting via bypass 2 Frost protection with preheating coil comfort function Str...

Page 60: ...g Ventilation Ó Set room temperature C108 Max 4 K higher or lower than Stand ard room temperature 2000 adjust ment value 1 0 1 C Background ventilation C109 Subject to sizing Ventilation unit service instruc tions Reduced ventilation C10A Standard ventilation C10B Intensive ventilation C10C Background ventilation second fan duct C189 Vitovent 200 W only Reduced ventilation second fan duct C18A Vit...

Page 61: ...o 30 kW Enable required functions for utilisation of power generated on site Parameter Setting Photovoltaics Ó Enable own energy consumption for set DHW temperature 2 7E10 1 Enable own energy consumption for DHW heating 7E11 1 Enable own energy consumption for heating water buffer cyl 7E12 1 Enable own energy consumption for heating 7E13 1 Enable own energy consumption for cooling 7E15 1 Enable ow...

Page 62: ... Ó Enable use of compressor stage 5012 0 to 15 System definition Ó System scheme 7000 0 to 10 11 Cascade control 700A 2 0 Use of heat pump in cascade 700C 0 to 15 Number of lag heat pumps 7029 1 to 4 Internal hydraulics Ó Enable 3 way diverter valve heating DHW 730D 0 or 1 0 or 1 Communication Ó Enable LON communication module 7710 1 1 Number of heat pump in cascade 7707 1 to 4 LON system number 7...

Page 63: ...trol unit Function check at the heat pump control unit 1 Service menu Press OK å simultaneously and hold for approx 4 s 2 Service functions 3 Function check 4 Start the required function e g DHW Only those functions are shown that correspond to the actual system equipment level During the function check the system overview is displayed 5 Terminate function with Overview of functions Vitotronic 200...

Page 64: ...rogramming unit Type BWS 351 B D C B A M E N Fig 40 A Transformer EEV PCB B EEV PCB refrigerant circuit controller C Compressor contactors starter control phase monitor D Cable channel E Compressor power supply M Plug for connecting cable heat pump stage 1 stage 2 230 V N Plug for connecting cable heat pump stage 1 stage 2 extra low voltage ELV Opening the casing door To open the casing door See R...

Page 65: ...econdary side K Oil sump heater L Drain valve primary side M Electronic expansion valve N Suction gas temperature sensor O Low pressure sensor P Solenoid valve vapour injection Q Return temperature sensor primary circuit heat pump brine outlet R Liquid gas temperature sensor S Sight glass T Thermal expansion valve vapour injection U Filter dryer V High pressure sensor W Schrader valve low pressure...

Page 66: ...sensor direct heating circuit A1 HC1 or separate cool ing circuit SKK F14 Room temperature sensor cooling circuit F16 Boiler water temperature sensor external heat generator F20 Room temperature sensors for heating circuits NTC 10 kΩ Flow temperature sensor primary circuit F2 Return temperature sensor primary circuit F3 Flow temperature sensor secondary circuit in a 2 stage heat pump for heat pump...

Page 67: ... 26 138 470 6 24 165 38 5 775 70 1 752 102 0 642 134 0 272 25 130 370 7 23 009 39 5 546 71 1 694 103 0 623 135 0 265 24 122 800 8 21 916 40 5 327 72 1 637 104 0 606 136 0 259 23 115 720 9 20 880 41 5 117 73 1 583 105 0 589 137 0 253 22 109 090 10 19 900 42 4 917 74 1 531 106 0 572 138 0 247 21 102 880 11 18 969 43 4 726 75 1 481 107 0 556 139 0 241 20 97 070 12 18 087 44 4 543 76 1 433 108 0 541 1...

Page 68: ... 7 12 476 5 19 537 0 50 597 0 81 656 4 112 715 3 143 773 6 11 478 5 20 539 0 51 598 9 82 658 3 113 717 2 144 775 4 10 480 5 21 540 9 52 600 9 83 660 2 114 719 0 145 777 3 9 482 4 22 542 9 53 602 8 84 662 1 115 720 9 146 779 2 8 484 4 23 544 8 54 604 7 85 664 0 116 722 8 147 781 0 7 486 3 24 546 8 55 606 6 86 665 9 117 724 7 148 782 9 6 488 3 25 548 7 56 608 6 87 667 9 118 726 6 149 784 8 5 490 2 2...

Page 69: ...tlets in diaphragm grommets are leaking See page 48 Hoses are in contact with other components Casing door not closed tight See following diagram Plinth trims not fitted See page 47 Excessive clearance between the plinth trim and floor Condensation and moisture in the heat pump module Possible causes Hose outlets in diaphragm grommets are leaking See page 48 Casing door not closed tight See diagra...

Page 70: ... top front or side panels of the appliance aYH 2 3 A 1 Fig 42 A Casing door 4 Drain the primary and secondary sides For drain valves see page 65 Please note Steep tilting of the compressor in the heat pump can result in appliance damage Max tilting angle 45 for a very short time Maintenance Removing the heat pump module 5855006 Maintenance ...

Page 71: ...connections that belong together Disconnect all electrical connections 8 Note To stabilise the heat pump module on its support it may be necessary to attach the transport bracket See page 15 Maintenance Removing the heat pump module cont 5855006 Maintenance ...

Page 72: ...e hose outlets are seated correctly Seal hose outlets with sealing tape if necessary See page 48 Please note Leaking hydraulic connections lead to appliance damage Check the internal and on site hydraulic con nections for leaks In the event of leaks switch OFF the appli ance immediately Drain off liquid via the drain valve Check the seating of seal rings Always replace displaced seal rings Mainten...

Page 73: ...ing Checked under the following conditions Room temperature C Outside temperature C Temperature Cylinder temp top con stant Yes 1 K Secondary circuit flow temperature C Rising From To From To Temperature differential ΔT Flow temp secondary Return temp sec K 6 to 8 Control parameter report Parameter description Vitotronic 200 service instructions System definition Parameter Code Delivered condition...

Page 74: ...g status after message A9 C9 701C 0 Effect of OM changeover to ventilation 701F 3 Number of lag heat pumps 7029 0 Select primary source 7030 0 Start hysteresis solar air absorber 7031 20 2 K Minimum temp for solar absorber primary source 7033 500 50 C Min runtime to suppress summer mode 7035 60 min Last calendar week for summer mode 7036 35 Absorber circuit monitoring 7037 0 Temperature sensor for...

Page 75: ...at source 7B02 100 10 C Start threshold external heat source 7B03 300 30 min Start delay external heat source 7B04 30 min Min flow temperature mixer external heat source ON 7B05 0 Min runtime external heat source 7B06 20 min Run on time external heat source 7B07 10 min Max excess flow temp external heat source 7B0B 0 Enable external heat gen for central heating 7B0C 1 Enable external heat source f...

Page 76: ... DHW heating 6014 0 Enable electric heaters for DHW heating 6015 0 Priority DHW heating with combi cylinder 6016 0 Start attempts for DHW after high pressure shutdown 6017 1 Shutdown hysteresis inst heating water heater 601E 0 0 K Cylinder primary pump enable 601F 0 Operating mode cylinder primary pump 6020 0 Enable elec heating ext HS for reheating only 6040 0 Solar Parameter Code Delivered condi...

Page 77: ...300 0 Time program for screed drying 7303 0 Set flow temperature for external demand 730C 500 50 C Enable 3 way diverter valve heating DHW 730D 0 Start threshold 730E 300 K min Cycle rate heating circuit pumps 7319 0 Operating mode secondary pump 7340 0 Secondary circuit pump type 735A 0 Starting time high efficiency circulation pump 7365 5 Operating mode secondary pump 2 73C0 0 Primary source Par...

Page 78: ...temperature 2001 160 16 C Remote control 2003 0 Room temperature control 2005 0 Heating curve level 2006 0 0 K Heating curve slope 2007 6 0 6 Influence room temperature hook up 200 A 10 Room temperature hook up 200 B 0 Max flow temperature heating circuit 200E 400 40 C Room temperature in party mode 2022 200 20 C Heating circuit 2 Parameter Code Delivered condition Commission ing Maintenance Servi...

Page 79: ...ure cooling 7103 200 20 C Influence room temperature hook up cooling circuit 7104 0 Room temperature control cooling circuit 7105 1 Ranking room temp sensor separate cooling circuit 7106 0 Hysteresis room temp cooling circuit 7107 10 1 K Enable flow temperature sensor cooling cir cuit 7109 1 Cooling curve level 7110 0 0 K Cooling curve slope 7111 12 1 2 Remote control cooling circ 7116 0 Dew point...

Page 80: ...al 230 V input ventilation 7D3A 0 Duration bathroom vent 7D3B 30 min Starting block ventilation periods part 1 7D5E 0 Starting block ventilation periods part 2 7D5F 0 Control voltage matching supply air fan 7D71 0 V Control voltage matching exhaust air fan 7D72 0 V Sensor matching outdoor air temperature 7D75 0 K Sensor matching outdoor air temp after pre heating coil 7D76 0 K Sensor matching supp...

Page 81: ...1A0 0 Central heating and heat recovery C1A1 0 Imbalance permitted C1A2 1 Specified imbalance C1A3 0 Set reheater coil temperature C1A4 210 21 C Humidity sensor sensitivity C1A6 0 Min temperature geothermal heat ex changer C1AA 50 5 C Max temperature geothermal heat ex changer C1AB 250 25 C Function input 1 C1B0 0 Min voltage input 1 C1B1 0 10 1 V Min voltage input 2 C1C1 0 10 1 V Flow rate correc...

Page 82: ...rature PV 7E23 0 0 K Reduce set room temperature PV 7E25 0 0 K Smart Grid Parameter Code Delivered condition Commission ing Maintenance Service Enable Smart Grid 7E80 0 Smart Grid Enable elec heat 7E82 0 Smart Grid set value increase for DHW heating 7E91 0 0 K Smart Grid set value increase for htg wtr buff 7E92 0 0 K Smart Grid set value increase for centr htg 7E93 0 0 K Smart Grid set value decre...

Page 83: ...ber 7798 1 Interval for data transfer via LON 779C 20 min Source outside temperature 77FC 0 Send outside temperature 77FD 0 Source time 77FE 0 Send time 77FF 0 Control Parameter Code Delivered condition Commission ing Maintenance service Lock out controls 8800 0 Level enable time program quieter op eration 8801 0 User level for display energy stmt 8811 1 Commissioning service reports Control param...

Page 84: ...00 3000 Pressure drop at minimum flow rate mbar 7 10 16 23 kPa 0 7 1 0 1 6 2 3 Max flow temperature 6 K spread C 65 68 68 68 Electrical values heat pump Rated voltage compressor V 3 PE 400 V 50 Hz Rated current compressor A 13 2 21 26 33 Cos φ 0 8 0 8 0 8 0 8 Starting current compressor with starting cur rent limiter A 36 39 43 59 Starting current compressor with stalled arma ture A 101 118 140 17...

Page 85: ...5 1085 1085 Total width mm 780 780 780 780 Total height without programming unit mm 1074 1074 1074 1074 Total height programming unit pivoted up type BW 351 B only mm 1267 1267 1267 1267 Weight Heat pump stage 1 type BW 351 B kg 270 285 310 315 Heat pump stage 2 type BWS 351 B kg 265 280 305 310 Connections male thread Primary circuit flow return G 2 2 2 2 Secondary circuit flow return G 2 2 2 2 S...

Page 86: ...0 6 80 9 00 Coefficient of performance COP 5 70 6 10 6 20 5 80 Brine primary intermediate circuit Capacity l 9 11 14 14 Nominal flow rate 3 K spread l h 6400 9500 10300 14000 Pressure drop at nominal flow rate mbar 145 80 120 320 kPa 14 5 8 0 12 0 32 0 Minimum flow rate 5 K spread l h 4800 6500 7700 10500 Pressure drop at minimum flow rate mbar 90 42 77 124 kPa 9 0 4 2 7 7 12 4 Max flow temperatur...

Page 87: ...y installed optional Components for ventilation fully installed optional Components for PV system fully installed optional Preferred appointment 1 Date Time 2 Date Time The work that is requested to be carried out by Viessmann will be billed in accordance with the latest Viessmann pricelist Place Date Signature Final decommissioning and disposal Viessmann products can be recycled Components and su...

Page 88: ...eristics Using the serial number the full Declaration of Con formity can be found on the following website www viessmann co uk eu conformity The product characteristics determined as system values for the product Vitocal 350 G see technical guide can be utilised to assess the energy consumption of heating and ventilation systems to DIN V 4701 10 specified by the EnEV Germany Certificates Declarati...

Page 89: ...Cooling function 57 Cross connect PCB 23 31 64 Cylinder loading pump Parameters 55 Cylinder temperature sensor 33 66 D DHW circulation pump 55 Diaphragm grommets 17 18 48 72 Checking 48 Dimensions 10 Draining secondary side 66 Drain valve Primary side 65 Secondary side 65 E EA1 extension 33 Economy tariff meter 38 39 40 41 EEV PCB 64 Electrical connection 18 20 22 Electrical connections Checking 5...

Page 90: ...odbus distributor 33 Moisture in heat pump module 69 N Noise 15 45 48 69 72 Noise level 69 Non return valves opening 51 O ON OFF switch 49 52 On site power consumption 42 Operating noise 63 Output extension 8 Outside temperature sensor 33 66 Overview Electrical connections 23 Internal components 65 Sensors 65 System schemes 54 Valves 65 Overvoltage 44 P Parameter group selection 54 Parameters Cool...

Page 91: ...31 Safety high pressure switch 65 Safety valve 17 Schrader valve High pressure side 65 Low pressure side 65 Seal rings replacing 18 45 51 72 Secondary circuit Connecting 17 Filling 51 Filling and venting 51 Secondary pump 34 Parameters 55 Sensors 65 Checking 66 Refrigerant circuit 66 Service menu Activating 53 Calling up 54 Deactivating 53 Service termination 53 Sight glass 65 Siting 10 11 Smart G...

Page 92: ...Wall clearances 12 Warranty 52 Water water heat pump 8 Water quality 51 Weight 12 Wiring chamber 64 Viessmann Limited Hortonwood 30 Telford Shropshire TF1 7YP GB Telephone 44 1952 675000 Fax 44 1952 675040 E mail info uk viessmann com Viessmann Werke GmbH Co KG D 35107 Allendorf Telephone 49 6452 70 0 Fax 49 6452 70 2780 www viessmann com 5855006 Subject to technical modifications Keyword index co...

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Viessmann Vitocal 350-G, Installation And Service Instructions For Contractors

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