Viessmann VITOCAL 350-G Installation And Service Instructions Manual
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Viessmann VITOCAL 350-G Installation And Service Instructions Manual

Brine/water heat pumps with electric drive, 1 and 2-stage
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VIESMANN
Installation and service
instructions
for contractors
Vitocal 350-G
Type BW/BWS 351.A18
Brine/water heat pumps with electric drive, 1 and 2-stage
For applicability, see the last page
VITOCAL 350-G
Please keep safe.
5546 267 GB
6/2014

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Summary of Contents for Viessmann VITOCAL 350-G

  • Page 1 VIESMANN Installation and service instructions for contractors Vitocal 350-G Type BW/BWS 351.A18 Brine/water heat pumps with electric drive, 1 and 2-stage For applicability, see the last page VITOCAL 350-G Please keep safe. 5546 267 GB 6/2014...
  • Page 2 Safety instructions Safety instructions Please follow these safety instructions closely to prevent accidents and mate- rial losses. Safety instructions explained ■ Codes of practice of the relevant trade associations. Danger ■ All current safety regulations as This symbol warns against the defined by DIN, EN, DVGW, VDE and risk of injury.
  • Page 3 Repairing components that fulfil a safety function can compromise the safe operation of your sys- tem. Defective components must be replaced 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 function.

  • Page 4: Table Of Contents

    Index Index Installation instructions Preparing for installation Intended use......................Product information....................Designations in the system examples..............Primary circuit, type BW..................Primary circuit, type BW + BWS (2-stage) ............12 Requirements regarding on-site connections............20 Siting conditions....................23 Installation sequence Siting the heat pump.................... 25 Making the hydraulic connections................
  • Page 5 Index Index (cont.) Commissioning/service reports Hydraulic parameters report................. 115 Control parameters report..................116 Specification Brine/water heat pumps..................127 Water/water heat pumps..................129 Appendix Commissioning order................... 131 Certificates Declaration of conformity..................132 Keyword index....................133...

  • Page 6: Preparing For Installation

    Preparing for installation Intended use The appliance is only intended to be Commercial or industrial usage for a pur- installed and operated in sealed unven- pose other than central heating/cooling ted heating systems that comply with or DHW heating shall be deemed inap- EN 12828, with due attention paid to the propriate.
  • Page 7 Preparing for installation Product information (cont.) ■ The output of type BW 351.A can be supplemented with a stage 2 heat pump (type BWS). ■ Using the conversion kit (accessory), the brine/water heat pump type BW can be converted into a water/water heat pump.

  • Page 8: Designations In The System Examples

    Preparing for installation Designations in the system examples -2/145- --2/F14-- --2/F14-- --2/X3.8;3.9-- --2/211.2--...

  • Page 9: Primary Circuit, Type Bw

    Preparing for installation Primary circuit, type BW With a water/water heat pump conversion kit Hydraulic installation scheme --2/X3.8;3.9-- ----- --2/X3.8;3.9-- --------- Equipment required Pos. Designation Heat pump Heat pump control unit Primary pump Frost stat, primary circuit Brine accessory pack Pressure switch, primary circuit...
  • Page 10 Preparing for installation Primary circuit, type BW (cont.) Pos. Designation Separating heat exchanger, primary circuit Flow switch, well circuit (remove jumper when connecting) Dirt trap Well pump (suction pump for groundwater; connect via on-site contactor with fuse protection) ■ 230 V connection: See page 10. ■...
  • Page 11 Preparing for installation Primary circuit, type BW (cont.) On-site well pump connection 400 V~ 200 W 211.1 X2.N...

  • Page 12: Primary Circuit, Type Bw + Bws (2-Stage)

    Preparing for installation Primary circuit, type BW + BWS (2-stage) With water/water heat pump conversion kit, incl. 2 primary pumps Hydraulic installation scheme --F2-- --2/X3.8;3.9-- --2/224.2-- --2/211.1-- --F3-- --2/X3.8;3.9-- ---------...
  • Page 13 Preparing for installation Primary circuit, type BW + BWS (2-stage) (cont.) Equipment required Pos. Designation Heat pump stage 1 Heat pump control unit Heat pump stage 2 Primary pump, heat pump stage 1 Primary circuit flow temperature sensor (for installation, see page 51) Primary circuit return temperature sensor (for installation, see page 51) Frost stat, primary circuit...
  • Page 14 Preparing for installation Primary circuit, type BW + BWS (2-stage) (cont.) On-site well pump connection 230 V~ 200 W 211.1 200 W 224.2...
  • Page 15 Preparing for installation Primary circuit, type BW + BWS (2-stage) (cont.) On-site well pump connection 400 V~ 200 W 211.1 X2.N 200 W 224.2 X2.N X3.1 X2.N Sensor and limiter connection X3.3 230 V; 0.15 A X3.4 X3.8 230 V; 0.15 A X3.9 230 V;...
  • Page 16 Preparing for installation Primary circuit, type BW + BWS (2-stage) (cont.) With water/water heat pump conversion kit, incl. one common primary pump Note If the stage 1 and 2 heat pumps are installed with different rated heating out- puts, 2 primary pumps must be used to accommodate the different flow rates (see page 12).
  • Page 17 Preparing for installation Primary circuit, type BW + BWS (2-stage) (cont.) Hydraulic installation scheme --F2-- --F3-- --2/X3.8;3.9-- --------- Equipment required Pos. Designation Heat pump stage 1 Heat pump control unit Heat pump stage 2 Common primary pump...
  • Page 18 Preparing for installation Primary circuit, type BW + BWS (2-stage) (cont.) Pos. Designation Primary circuit flow temperature sensor (for installation, see page 51) Primary circuit return temperature sensor (for installation, see page 51) Frost stat, primary circuit Brine accessory pack Pressure switch, primary circuit Separating heat exchanger Flow switch, well circuit (remove jumper before connecting)
  • Page 19 Preparing for installation Primary circuit, type BW + BWS (2-stage) (cont.) On-site well pump connection 400 V~ 211.1 224.2 200 W X2.N X2.N Sensor and limiter connection X3.3 230 V; 0.15 A X3.4 X3.8 230 V; 0.15 A X3.9 230 V; 0.15 A PT500 PT500...

  • Page 20: Requirements Regarding On-Site Connections

    Preparing for installation Requirements regarding on-site connections Single stage (type BW) 230 V < 42 V 400 V...
  • Page 21 Preparing for installation Requirements regarding on-site connections (cont.) Two-stage (type BW + type BWS) 230 V < 42 V 230 V < 42 V 400 V 400 V = 300 Flow, secondary circuit (heating water flow) Return, secondary circuit (heating water return) Primary circuit return (heat pump brine outlet) Flow, primary circuit (heat pump brine inlet)
  • Page 22 Preparing for installation Requirements regarding on-site connections (cont.) ■ Install hydraulic connections on site stress-free. ■ Establish hydraulic connections between heat pump stage 1 and stage 2 on site. ■ All required components (with a suita- bly designed plate heat exchanger) for the cooling circuit must be provided on site.

  • Page 23: Siting Conditions

    Preparing for installation Siting conditions For handling purposes, the heat pump Please note module can be removed (see Tilting the compressor at a steep page 89). angle inside the heat pump can result in appliance damage. Please note Max. tilting angle 45 ° Prevent damage to the appliance during handling.
  • Page 24 Preparing for installation Siting conditions (cont.) Minimum clearances Single stage (type BW) ≥ 400 ≥ 400 A Clearance subject to on-site instal- lation and location Two-stage (type BW + type BWS) ≥ 400 ≥ 400 = 300 A Clearance subject to on-site instal- lation and location...

  • Page 25: Installation Sequence

    Installation sequence Siting the heat pump Levelling the heat pump Position and level the heat pump hori- zontally as described on page 23.
  • Page 26 Installation sequence Siting the heat pump (cont.) Removing the transport brackets Please note Operating the appliance without first removing the transport brackets may cause vibrations and excessive noise. Remove transport brackets and secure with lower screws onto the base support (see step 4).

  • Page 27: Making The Hydraulic Connections

    Installation sequence Siting the heat pump (cont.) Removing the top panel Making the hydraulic connections Connecting the primary circuit For arrangement of hydraulic connec- Please note tions, see page 20. The components used must be resistant to the heat transfer medium.
  • Page 28 Ensure frost protection down to ■ The discharge and drain pipes –19 °C. should terminate in a container. Viessmann heat transfer medium is a This container must be able to hold ready-mixed ethylene glycol-based the maximum possible expansion medium. It contains inhibitors for cor- volume of the heat transfer rosion protection.
  • Page 29 Installation sequence Making the hydraulic connections (cont.) Connecting the secondary circuit 1. Equip the secondary circuit on site 3. Fill and vent secondary circuit. with an expansion vessel and safety assembly (in accordance with 4. Thermally insulate pipes inside the DIN 4757).

  • Page 30: Electrical Connections

    Installation sequence Electrical connections Installing the programming unit...
  • Page 31 Installation sequence Electrical connections (cont.) [XÖ Routing cables to the wiring chamber Danger Danger Damaged cable insulation can Incorrect wiring can lead to seri- cause injury and damage to the ous injury from electrical current appliance. and result in appliance damage. Route cables so that they cannot Observe the following points touch very hot, vibrating or sharp-...
  • Page 32 Installation sequence Electrical connections (cont.) ■ Route LV cables < 42 V separately This ensures that, in the event of a fault from cables > 42 V/230 V~/400 V~. (e.g. when detaching a wire), the wires ■ Strip the insulation from the cables as cannot drift into the adjacent voltage close to the terminals as possible, and area.
  • Page 33 Installation sequence Electrical connections (cont.) Making the electrical connection for heat pump stage 1 (type BW) and stage 2 (type BWS) aJ B < 42 V 230 V~ < 42 V 230 V~ aVG aVG [C-Ö...
  • Page 34 Installation sequence Electrical connections (cont.) A Wiring chamber, heat pump stage 2 C 230 V~ connecting cables: (type BWS) ■ With plugs without ID for the wir- B Connecting cables, LV < 42 V: ing chamber, heat pump stage 2 ■...
  • Page 35 Installation sequence Electrical connections (cont.) Main PCB (230 V~ components) Information regarding the connection Set the required parameters during com- values missioning; see from page 71. ■ The specified output is the recommen- ded connected load. ■ The total output of all components con- nected directly to the heat pump con- trol unit (e.g.
  • Page 36 Installation sequence Electrical connections (cont.) Terminals Function Explanation 211.2 Secondary pump (heat ■ In systems without a heating water buf- pump stage 1) fer cylinder, no other heating circuit pump is required (see terminal 212.2). ■ Connect a temperature limiter to restrict the maximum temperature for under- floor heating circuits (if installed) in ser- ies.
  • Page 37 Installation sequence Electrical connections (cont.) Plug sYS Terminals Function Explanation 212.1 Switching the active cooling Circuit on site function Connection values ■ Output: 10 W ■ Voltage: 230 V~ ■ Max. switching current: 4(2) A 212.2 Heating circuit pump for ■...
  • Page 38 Installation sequence Electrical connections (cont.) Connecting a temperature limiter as a maximum temperature limiter for under- floor heating Connecting a general temperature Connecting the temperature limiter, limiter B part no. 7151 728, 7151 729 B X2.N X2.N sÖ Connection A to Circulation pump C control unit Heating circuit without mixer A1/HC1...
  • Page 39 Installation sequence Electrical connections (cont.) Connecting the temperature limiter, part no. 7151 728, 7151 729 B to the mixer extension kit sÖ sÖ A Connect plug sÖ to the extension kit. B Temperature limiter C Heating circuit pump M3/HC3...
  • Page 40 Installation sequence Electrical connections (cont.) Expansion PCB on main PCB (230 V~ components) Information regarding the connection Set the required parameters during com- values missioning; see from page 71. ■ The specified output is the recommen- ded connected load. ■ The total output of all components con- nected directly to the heat pump con- trol unit (e.g.
  • Page 41 Installation sequence Electrical connections (cont.) Terminals Function Explanation 222.3 222.4 Control of external heat Floating contact generators and 1 high limit safety cut-out each (on site, Connection values (contact breaking ca- max. 70 °C), to switch off or pacity) switch between the follow- ■...
  • Page 42 Installation sequence Electrical connections (cont.) High limit safety cut-out for heat C Connection on the external heat pump in conjunction with an external source at terminals for external heat source demand D High limit safety cut-out (max. 70 °C) as heat pump protection X3.1 K1 Relay;...
  • Page 43 Installation sequence Electrical connections (cont.) Central fault message 223.1 230 V~, 0.5 A 223.2 A Terminals on extension PCB Plug sXF Terminals Function Explanation 224.2 Primary pump for heat Connection values pump stage 2 ■ Output: 200 W ■ Voltage: 230 V~ ■...
  • Page 44 Installation sequence Electrical connections (cont.) Terminals Function Explanation 224.7 Circulation pump for DHW Connection values reheating ■ Output: 100 W ■ Voltage: 230 V~ Control of immersion heater ■ Max. switching current: 4(2) A (in DHW cylinder) Immersion heater (400 V~) 224.7 X2.N A Immersion heater, power supply...
  • Page 45 Installation sequence Electrical connections (cont.) Plug sXG Terminals Function Explanation 225.1 Heating circuit pump of the Connect a temperature limiter to restrict heating circuit with mixer the maximum temperature for underfloor M2/HC2 heating circuits (if installed) in series. Connection values: ■...
  • Page 46 Installation sequence Electrical connections (cont.) Signal and safety connections Terminals Function Explanation Fuse 6.3 A (slow) Earth conductor X1.? Terminals for earth conductor of all asso- ciated system components Neutral conductor X2.N Terminals for neutral conductor of all as- sociated system components ■...
  • Page 47 Installation sequence Electrical connections (cont.) Terminals Function Explanation X3.3 X3.4 Flow switch Requires floating N/O contact (activa- ted): ■ Closed: Heat pump in operation ■ Open: Heat pump shut down ■ Breaking capacity 230 V~, 0.15 A ■ Jumper is used in some devices. ■...
  • Page 48 Installation sequence Electrical connections (cont.) Terminals Function Explanation X3.8 X3.9 Pressure switch, primary Requires zero volt N/C contact: circuit ■ Closed: Safety chain has continuity and/or ■ Open: Safety chain interrupted; heat pump shut down ■ Breaking capacity 230 V~, 0.15 A Frost stat ■...
  • Page 49 Installation sequence Electrical connections (cont.) Terminals Function Explanation X3.17 Fuse F1 6.3 A (slow) X3.18 X3.18 Heat pump control unit Power supply 230 V~ power supply: Phase L1 X1.1 Earth conductor con- nection X2.1 Neutral conductor connection Controller and sensor PCB (sensors) Set the required parameters during com- Note missioning;...
  • Page 50 Heat pump control unit is slave Heat pump control unit is master (delivered condi- tion) Modbus 1 Viessmann devices If other Viessmann devices are to be connected, plug in the Modbus distributor (accessory). Connection, LON communication module (accessory) Coding card slot a:DA...
  • Page 51 Installation sequence Electrical connections (cont.) Connection of primary circuit flow/return temperature sensor, 2-stage heat pump <42 V aS Flow temperature sensor, primary aD Return temperature sensor, primary circuit circuit...
  • Page 52 Installation sequence Electrical connections (cont.) Please note Fasten sensor leads and disman- Identify sensor leads. tled leads (with plug aS/aD) together with the other low volt- age leads using the cable ties provided. Instantaneous heating water heater (on site) Connection Installation instructions Instantaneous heating water heater (on site).
  • Page 53 Installation sequence Electrical connections (cont.) Swimming pool heating Note ■ Swimming pool heating is controlled via extension EA1 with KM BUS. ■ Make connections to extension EA1 only according to the following dia- gram. ■ A filter circuit pump cannot be control- led via the heat pump control unit.

  • Page 54: Power Supply

    Installation sequence Electrical connections (cont.) D Fuses and contactor for circulation G Circulation pump for swimming pool pump for swimming pool heating heating (accessory) (accessories) H Thermostat for swimming pool tem- E Jumper perature control (floating contact: 230 V~, 0.1 A, accessories) F 3-way diverter valve for "Swimming pool"...
  • Page 55 Installation sequence Power supply (cont.) Danger ■ The heat pump control unit/PCB Incorrect core allocation can must be supplied with power without result in serious injury and dam- being interrupted by the power supply age to the appliance. utility. Tariffs subject to possible shut- Never interchange cores "L"...
  • Page 56 Installation sequence Power supply (cont.) Heat pump control unit power supply 230 V~ ■ Max. fuse rating 16 A max.16 A ■ Standard tariff: No optional economy X3.18 1/N/PE tariff with power-OFF for the heat X2.1 230 V / 50 Hz pump control unit X1.1 ■...
  • Page 57 Installation sequence Power supply (cont.) Service instructions for Note "Vitotronic 200 heat pump control Observe the technical connection condi- unit" tions of the relevant power supply util- ity. Single stage X3.7 X3.6 ≈ Diagram excluding fuses and RCD. A Heat pump control unit (connection E Ripple control receiver (contact on cross connect PCB) open: power-OFF enabled)
  • Page 58 Installation sequence Power supply (cont.) Two-stage (type BW + BWS) X3.7 X3.6 ≈ Shown excluding fuses and RCD. A Heat pump control unit (connection E Ripple control receiver (contact on cross connect PCB) open: power-OFF enabled) B Instantaneous heating water heater F Backup fuse ripple control receiver (if installed) G Feed: TNC system...
  • Page 59 Installation sequence Power supply (cont.) Power-OFF with on-site load disconnection The power-OFF signal is connected to Note the on-site contactor of the economy tar- Observe the technical connection condi- iff power supply and to the heat pump tions of the relevant power supply util- control unit.
  • Page 60 Installation sequence Power supply (cont.) A Heat pump control unit (connection F Standard tariff meter on cross connect PCB) G Ripple control receiver (contact B Instantaneous heating water heater open: power-OFF enabled) with (if installed) backup fuse C Compressor H Economy tariff meter D Control unit power supply K Feed: TNC system E Mains isolator...
  • Page 61 Installation sequence Power supply (cont.) H Economy tariff meter L Heat pump compressor stage 2 K Feed: TNC system (type BWS) Mains power supply in conjunction with on-site power consump- tion Without power-OFF E1E2 D /D L1 L1 L2 L2 L3 L3 A Heat pump C Electricity meter B Additional consumers (of power...
  • Page 62 Installation sequence Power supply (cont.) G Double-tariff meter (for special tariff K Meter with reverse block: for heat pump) For energy generated by PV sys- Not permissible in conjunction with L Isolator for the domestic power sup- PV systems for on-site power con- sumption ply connection (distribution panel) H Bi-directional meter (for PV systems...
  • Page 63 Installation sequence Power supply (cont.) Version 1 A Over/undervoltage in % B Phase asymmetry in % <>U <>U C Switching delay in s D Contact used in safety chain (N/O) E ON/OFF indicator ("Rel") F Fault display phase failure/phase sequence ("Ph") G Fault display asymmetry ("Asy") H Fault display over/undervoltage ("<>U")

  • Page 64: Make Connections At Terminals X3.8/X3.9

    Installation sequence Power supply (cont.) Version 2 N 11 21 LEDs explained A Voltage "U": Illuminates green if voltage is L1 L2 L3 applied. B Relay "R": Illuminates yellow if the phase sequence is correct. Does not illuminate if the phase sequence is incorrect.

  • Page 65: Closing The Heat Pump

    Installation sequence Closing the heat pump Please note Danger Leaking hydraulic connections If system components are not lead to appliance damage. earthed, serious injury from elec- ■ Check internal hydraulic con- tric current can result if an elec- nections for leaks. trical fault occurs.

  • Page 66: Checking Diaphragm Grommets

    Installation sequence Closing the heat pump (cont.) Checking diaphragm grommets Please note Seal the appliance so it is sound- proof and diffusion-proof. With the hose outlets, ensure dia- phragm grommets A are seated correctly. Seal diaphragm grommets A with adhesive tape if necessary.
  • Page 67 Installation sequence Checking diaphragm grommets (cont.)

  • Page 68: Commissioning, Inspection, Maintenance

    Commissioning, inspection, maintenance Steps - commissioning, inspection and maintenance For further information regarding the individual steps, see the page indicated Commissioning steps Inspection steps Maintenance steps Page • • • 1. Opening the heat pump............ 69 • 2. Writing reports..............69 •...

  • Page 69: Further Details Regarding The Individual Steps

    Commissioning, inspection, maintenance Further details regarding the individual steps Opening the heat pump Danger Please note Contact with 'live' components Wait at least 30 min between the can lead to serious injury from installation and commissioning of electric current. the appliance to prevent equip- ■...

  • Page 70: Checking The Refrigerant Circuit For Leaks

    Viessmann heat transfer medium and vent. Note Ensure frost protection down to –19 °C. Viessmann heat transfer medium is a ready-mixed ethylene glycol-based medium. It contains inhibitors for cor- rosion protection. The heat transfer medium can be used at temperatures down to –19 °C.

  • Page 71: Checking Expansion Vessels And The Primary Circuit/ Heating Circuit Pressure

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) ■ Flush the heating system thoroughly 3. Fill (flush) and vent the secondary cir- before filling. cuit. ■ Only fill with water of potable quality. ■ Soften fill water with a water hardness Please note Avoid appliance damage.
  • Page 72 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Commissioning with the commissioning wizard The commissioning wizard automatically ■ When the unit is first commissioned, guides you through all the menus where the display is in German. settings have to be made. For this, "Cod- ing level 1"...
  • Page 73 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Language Date Time Date/time Start commissioning? Parameter group Parameter Coding level 1 select Sensor values Temperature sensors display Signal inputs Signal inputs display Actuator test Actuator test carry out Subscriber check Subscriber check (LON) carry out Function check...
  • Page 74 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Commissioning without the commissioning assistant Enabling the service menu 4. Select parameter: "System scheme 7000" The service menu can be enabled from 5. Set system scheme: "6" any menu. Press OK + å simultaneously for Alternatively, if the service menu was already enabled: approx.
  • Page 75 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Compo- System scheme nent DHW cylinder — — — — — — Immersion heater — — — — — — Heating water buffer cylinder — — External heat generator — Instantaneous heating water heater Swimming pool —...
  • Page 76 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Pumps and other components Pump/component Parameter Setting Heating circuit pump "System definition" Ó ■ With heating circuit A1/ HC1 (for heating circuit "System scheme 7000" without mixer) ■ With heating circuit M2/ HC2 (for heating circuit with mixer) ■...
  • Page 77 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Pump/component Parameter Setting For a separate cooling cir- "1" cuit: "Cooling" Ó "Remote control, cooling circuit 7116" "Cooling" Ó "0" F16 "Ranking room temp. "1" A1/HC1 sensor separate cooling "2" M2/HC2 circuit 7106"...
  • Page 78 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) External functions External functions Parameter Setting External demand "Internal hydraulics", if ap- Set flow temperature plicable Ó for external demand "Flow temperature for ex- ternal demand 730C" External starting of the com- "System definition"...
  • Page 79 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Instantaneous heating water heater Parameters for Setting Instantaneous heating water heater "Electr booster heater" Ó "1" "Enable instantaneous heating water heater 7900" "Electr booster heater", if applicable Ó "1" "Enable instant. heating water heater for cen- tral heating 7902"...
  • Page 80 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Solar Parameters for solar thermal system in con- Setting junction with solar control module, type SM1 "Solar" Ó "3" "Type solar control unit 7A00" "Solar" Ó See installation and service in- structions for "solar control mod- Parameter C0xx ule, type SM1".
  • Page 81 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Energy meter Electricity meter parameters Setting "Photovoltaics" Ó "1" "Enable own energy consumption PV 7E00" "Photovoltaics" Ó "0" to "300" "Threshold for electrical power 7E04" (≙ 0 to 30 kW) Extended menu: "PV ctrl strategy"...
  • Page 82 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Ventilation unit parameters Setting If applicable, adjust values (subject to sizing): "Ventilation" Ó ■ "Set extract air temperature 7D08" "100" to "300" (≙ 10 to 30 °C) ■ "Flow rate reduced ventilation 7D0A" "95"...

  • Page 83: Instructing The System User

    Note The additional parameters for the heat pump cascade are set during commis- sioning by a heat pump contractor certi- fied by Viessmann. Instructing the system user The system installer should hand the operating instructions to the system user and instruct the user in operating the system.

  • Page 84: Troubleshooting

    Troubleshooting Repairs Overview of electrical components Type BW 351.A18...
  • Page 85 Troubleshooting Repairs (cont.) Type BWS 351.A18 A Transformer, EEV PCB G Main PCB B EEV PCB (electronic expansion H Expansion PCB on the main PCB valve) K Controller and sensor PCB C Compressor contactors, starter con- L Programming unit trol, three-phase monitor M Plug for connecting cable, heat D Cable trunking pump stage 1 –...
  • Page 86 Troubleshooting Repairs (cont.) Overview of internal components A BC D Flow, secondary circuit (heat- D Secondary circuit flow temperature sensor ing water flow) E Compressor Return, secondary circuit (heat- F Secondary circuit return tempera- ing water return) ture sensor Return, primary circuit (brine G Drain valve on the secondary side outlet) H Liquid gas temperature sensor...
  • Page 87 Troubleshooting Repairs (cont.) Q Hot gas temperature sensor T Low pressure Schrader valve R Low pressure sensor EEV U Evaporator S High pressure Schrader valve Draining the heat pump on the primary/secondary side 1. Shut off the connection to the heating 2.
  • Page 88 Troubleshooting Repairs (cont.) Viessmann NTC 10 kΩ (marked blue) Viessmann Pt500A (marked green) Outside temperature sensor 140 180 Temperature in °C -20 -10 10 20 30 Temperature in °C Other sensors 10 30 50 70 90 110 Temperature in °C Checking MCB/fuses For fuse locations, see page 34.
  • Page 89 Troubleshooting Repairs (cont.) Danger Before working on the equip- Removing the fuse does not ment, always ensure that the switch the power circuit to zero power circuit is also at zero volt. Contact with 'live' compo- volt. nents can lead to serious injury from electric current.
  • Page 90 Troubleshooting Repairs (cont.) [{{] U/V/W A Casing door 4. Drain the primary and secondary sides (for drain valves, see page 86).
  • Page 91 Troubleshooting Repairs (cont.) Note on steps 6 and 7 Note on step 9 Identify the plug-in and threaded con- To stabilise the heat pump module on its nections that belong together. support, the transport bracket can be Disconnect all electrical connections. secured with screws (see page 26).
  • Page 92 Troubleshooting Repairs (cont.) Installing the heat pump module Install in reverse order to removal. Please note Avoid damage from condensate and excessive noise develop- ment. tightly seal the casing door. Please note Seal the appliance so it is sound- proof and diffusion-proof. Check tightness of the internal and external hydraulic connec- tions (see page 66).

  • Page 93: Parts Lists, Type Bw 351.A18

    Parts lists, type BW 351.A18 Overview of assemblies, type BW 351.A18 A Type plate C Assembly, electrical equipment B Assembly, casing D Assembly, heat pump module...

  • Page 94: Casing, Type Bw

    Parts lists, type BW 351.A18 Overview of assemblies, type BW 351.A18 (cont.) E Assembly, base frame F Assembly, miscellaneous Casing, type BW Pos. Component Part no. 0001 Front panel 7839879 0002 Side panel, left 7839864 0003 Side panel, right 7839865 0004 Top panel, front 7839867...

  • Page 95: Electrical Equipment, Type Bw

    Parts lists, type BW 351.A18 Casing, type BW (cont.) 0002 0005 0004 0007 0008 0006 0003 0001 0008 Electrical equipment, type BW Pos. Component Part no. 0001 Programming unit, Vitotronic 200 heat pump control unit 7841889 0002 Controller and sensor PCB with cover (CU 401) 7840551 0003 Base support, controller and sensor PCB 7832861...
  • Page 96 Parts lists, type BW 351.A18 Electrical equipment, type BW (cont.) Pos. Component Part no. 0007 Coding card, 1 stage (BW) 7842231 Coding card, 2-stage (BW + BWS) "7.." See part no. printed on the coding card 0008 EEV PCB 7840535 0009 Full wave soft starter 7816439 0012 Casing, programming unit...
  • Page 97 Parts lists, type BW 351.A18 Electrical equipment, type BW (cont.) 0040 0038 0007 0006 0002 0030 0039 0041 0004 0022 0003 0042 0005 0023 0001 0012 0036 0020 0009 0021 0024 0025 0026 0027 0028 0072 0025 0008 0027 0026 0057 0055 0028...

  • Page 98: Heat Pump Module, Type Bw

    Parts lists, type BW 351.A18 Heat pump module, type BW Pos. Component Part no. 0001 Compressor 7835491 0002 Heat exchanger (evaporator) 7835493 0003 Heat exchanger (condenser) 7833083 0004 Pressure sensor (PT5-30T) 7835469 0005 Pressure sensor (PT5-7T) 7835468 0007 Electronic expansion valve (EX5-U21) 7833092 0008 Filter dryer...
  • Page 99 Parts lists, type BW 351.A18 Heat pump module, type BW (cont.) Pos. Component Part no. 0040 Support, heat pump module 7839870 0041 Base support 7833123...
  • Page 100 Parts lists, type BW 351.A18 Heat pump module, type BW (cont.) 0032 0033 0025 0026 0034 0002 0031 0031 0017 0008 0030 0030 0030 0034 0033 0022 0013 0034 0012 0032 0018 0010 0015 0021 0014 0030 0036 0037 0034 0027 0034 0038...

  • Page 101: Base Frame, Type Bw

    Parts lists, type BW 351.A18 Base frame, type BW Pos. Component Part no. 0001 Plinth trim, front/back 7833064 0002 Plinth trim, left/right 7833065 0003 Bottom panel 7839871 0004 Casing bracket (set) 7839872 0005 Support panel, heat pump control unit 7839873 0006 Adjustable foot 7818798...
  • Page 102 Parts lists, type BW 351.A18 Base frame, type BW (cont.) 0005 0007 0008 0011 0004 0004 0010 0009 0007 0004 0012 0001 0002 0003 0006 0006 0004 0006 0001 0002...

  • Page 103: Miscellaneous, Type Bw

    Parts lists, type BW 351.A18 Miscellaneous, type BW Pos. Component Part no. 0001 Touch-up spray paint, Vitosilver 7819545 0002 Touch-up paint stick, Vitosilver 7819546 0003 Installation and service instructions 5513728 0004 Service instructions Vitotronic 200, type WO1C 5583773 0005 Operating instructions Vitotronic 200, type WO1C 5619408 0001 0002...

  • Page 104: Parts Lists, Type Bws 351.A18

    Parts lists, type BWS 351.A18 Assembly overview, type BWS 351.A18 A Type plate C Assembly, electrical equipment B Assembly, casing D Assembly, heat pump module...

  • Page 105: Casing, Type Bws

    Parts lists, type BWS 351.A18 Assembly overview, type BWS 351.A18 (cont.) E Assembly, base frame F Assembly, miscellaneous Casing, type BWS Pos. Component Part no. 0001 Front panel 7839877 0002 Side panel, left 7839864 0003 Side panel, right 7839865 0004 Top panel, front 7839878 0005...

  • Page 106: Electrical Equipment, Type Bws

    Parts lists, type BWS 351.A18 Casing, type BWS (cont.) 0002 0005 0004 0007 0006 0003 0001 Electrical equipment, type BWS Pos. Component Part no. 7514866 0008 EEV PCB 7840535 0009 Full wave soft starter 7816439 0020 Cable trunking 7835179 0021 Body-bound rivet 7832895...
  • Page 107 Parts lists, type BWS 351.A18 Electrical equipment, type BWS (cont.) Pos. Component Part no. 7514866 0024 Switching module 400 V~, 17 to 23 A 7833261 0025 Power contactor, 3-pole 230 V~ (K3-40A00) 7833130 0026 Contactor, 3-pole 230 V~ (K2-30A10) 7817644 0027 Thermal relay (17 to 23 A) 7817656...
  • Page 108 Parts lists, type BWS 351.A18 Electrical equipment, type BWS (cont.) 0030 0009 0020 0021 0024 0025 0026 0027 0072 0008 0025 0027 0026 0055 0057 0072 0049 0054 0056 0071 0043...

  • Page 109: Heat Pump Module, Type Bws

    Parts lists, type BWS 351.A18 Heat pump module, type BWS Pos. Component Part no. 0001 Compressor 7835491 0002 Heat exchanger (evaporator) 7835493 0003 Heat exchanger (condenser) 7833083 0004 Pressure sensor (PT5-30T) 7835469 0005 Pressure sensor (PT5-7T) 7835468 0007 Electronic expansion valve (EX5-U21) 7833092 0008 Filter dryer...
  • Page 110 Parts lists, type BWS 351.A18 Heat pump module, type BWS (cont.) Pos. Component Part no. 0040 Support, heat pump module 7839870 0041 Base support 7833123...
  • Page 111 Parts lists, type BWS 351.A18 Heat pump module, type BWS (cont.) 0032 0033 0025 0026 0034 0002 0031 0031 0017 0008 0030 0030 0030 0034 0033 0022 0013 0034 0012 0032 0018 0010 0015 0021 0014 0030 0036 0037 0034 0034 0027 0038...

  • Page 112: Base Frame, Type Bws

    Parts lists, type BWS 351.A18 Base frame, type BWS Pos. Component Part no. 0001 Plinth trim, front/back 7833064 0002 Plinth trim, left/right 7833065 0003 Bottom panel 7839871 0004 Casing bracket (set) 7839872 0005 Support panel, heat pump control unit 7839873 0006 Adjustable foot 7818798...
  • Page 113 Parts lists, type BWS 351.A18 Base frame, type BWS (cont.) 0005 0007 0008 0011 0004 0004 0010 0009 0007 0004 0012 0001 0002 0003 0006 0006 0004 0006 0001 0002...

  • Page 114: Miscellaneous, Type Bws

    Parts lists, type BWS 351.A18 Miscellaneous, type BWS Pos. Component Part no. 0001 Touch-up spray paint, Vitosilver 7819545 0002 Touch-up paint stick, Vitosilver 7819546 0003 Installation and service instructions 5513728 0004 Service instructions Vitotronic 200, type WO1C 5583773 0001 0002 0003 0004...

  • Page 115: Commissioning/Service Reports

    Commissioning/service reports Hydraulic parameters report Setting and test values Setpoint Commis- Mainte- sioning nance/Serv- Frost protection (brine medi- °C –19 Testing the external heating circuit pumps Circulation pump type Circulation pump stage Overflow valve setting Commissioning, primary circuit Primary circuit flow tempera- °C ture ("Diagnosis"...

  • Page 116: Control Parameters Report

    Commissioning/service reports Control parameters report Parameter description "Vitotronic 200" service instruc- tions System definition Parameter Code Delivered Commis- Mainte- condition sioning nance/ Service "System scheme" (see chapter 7000 "Overview of possible system schemes") "Temperature differential for 7003 40 (≙ 4 K) calculating the heating limit"...
  • Page 117 Commissioning/service reports Control parameters report (cont.) Parameter Code Delivered Commis- Mainte- condition sioning nance/ Service "Min. pause time summer 7035 60 min mode" "Last calendar week for sum- 7036 mer mode" "Absorber circuit monitoring" 7037 "Temperature sensor for dual 7038 mode operation"...
  • Page 118 Commissioning/service reports Control parameters report (cont.) External heat generator Parameter Code Delivered Commis- Mainte- condition sioning nance/ Service "Enable external heat source" 7B00 "Priority ext. heat source/in- 7B01 stant. heating water heater" "Dual mode temperature ex- 7B02 100 (≙ 10 °C) ternal heat source"...
  • Page 119 Commissioning/service reports Control parameters report (cont.) Parameter Code Delivered Commis- Mainte- condition sioning nance/ Service "Set DHW temperature" 6000 500 (≙ 50 °C) "Min. DHW temperature" 6005 100 (≙ 10 °C) "Max. DHW temperature" 6006 600 (≙ 60 °C) "Hysteresis DHW temperature 6007 50 (≙...
  • Page 120 Commissioning/service reports Control parameters report (cont.) Solar Parameter Code Delivered Commis- Mainte- condition sioning nance/ Service "Type solar control unit" 7A00 Parameters for solar control C0xx These parameters will only be displayed module, type SM1 if the solar control module, type SM1, is connected to the heat pump and "Type solar control unit"...
  • Page 121 Commissioning/service reports Control parameters report (cont.) Internal hydraulics Parameter Code Delivered Commis- Mainte- condition sioning nance/ Service "Heat pump for drying a build- 7300 ing" "Time program for screed dry- 7303 ing" "Set flow temperature for ex- 730C 500 (≙ 50 °C) ternal demand"...
  • Page 122 Commissioning/service reports Control parameters report (cont.) Heating circuit 1 Parameter Code Delivered Commis- Mainte- condition sioning nance/ Service "Standard room temperature" 2000 200 (≙ 20 °C) "Reduced room temperature" 2001 160 (≙ 16 °C) "Remote control" 2003 "Heating curve level" 2006 0 (≙...
  • Page 123 Commissioning/service reports Control parameters report (cont.) Heating circuit 3 Parameter Code Delivered Commis- Mainte- condition sioning nance/ Service "Standard room temperature" 4000 200 (≙ 20 °C) "Reduced room temperature" 4001 200 (≙ 20 °C) "Remote control" 4003 "Heating curve level" 4006 0 (≙...
  • Page 124 Commissioning/service reports Control parameters report (cont.) Ventilation Parameter Code Delivered Commis- Mainte- condition sioning nance/ Service "Vitovent enable" 7D00 "Enable preheater bank elec- 7D01 tric" "Enable reheater bank hy- 7D02 draulic" "Enable humidity sensor" 7D05 "Enable CO2 sensor" 7D06 "Set extract air temperature" 7D08 200 (≙...
  • Page 125 Commissioning/service reports Control parameters report (cont.) Photovoltaics Parameter Code Delivered Commis- Mainte- condition sioning nance/ Service "Enable own energy con- 7E00 sumption PV" "Prop. of external current" 7E02 10 (≙ 10 %) "Threshold for electrical pow- 7E04 0 (≙ 0 W) er"...
  • Page 126 Commissioning/service reports Control parameters report (cont.) Communication Parameter Code Delivered Commis- Mainte- condition sioning nance/ Service "Number of heat pump in cas- 7707 cade" "Enable LON communication 7710 module" "LON subscriber number" 7777 "LON fault manager" 7779 "LON system number" 7798 "Interval for data transfer via 779C...

  • Page 127: Specification

    Specification Brine/water heat pumps Type BW/BWS 351.A18 Output data to EN 14511 (B0/W35, 5 K spread) Rated heating output 18.66 Cooling capacity 14.52 Power consumption 4.14 Coefficient of performance ε (COP) 4.49 Output data with reference to EN 255 (B0/W35, 10 K spread) Rated heating output 18.97...
  • Page 128 Specification Brine/water heat pumps (cont.) Type BW/BWS 351.A18 Refrigerant circuit Refrigerant R134a Refrigerant charge 5.95 Permiss. operating pressure, low pressure side Permiss. operating pressure, high pressure side Compressor Type Hermetically sealed scroll Oil in compressor Type Emkarate RL32 3MAF Permiss. operating pressure Primary circuit Secondary circuit Dimensions...

  • Page 129: Water/Water Heat Pumps

    Specification Water/water heat pumps Type BW/BWS in conjunction with "conversion kit for wa- 351.A18 ter/water heat pump" Output data to EN 14511 (W10/W35, 5 K spread) Rated heating output 25.73 Cooling capacity 21.45 Power consumption 4.60 Coefficient of performance ε (COP) 5.40 Brine (primary circuit) Contents...
  • Page 130 Specification Water/water heat pumps (cont.) Type BW/BWS in conjunction with "conversion kit for wa- 351.A18 ter/water heat pump" Refrigerant circuit Refrigerant R134a Refrigerant charge 5.95 Permiss. operating pressure, low pressure side Permiss. operating pressure, high pressure side Compressor Type Hermetically sealed scroll Oil in compressor Type...

  • Page 131: Appendix

    Components for ventilation fully installed (optional) Components for PV system fully installed (optional) Preferred appointment: Date Time 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...

  • Page 132: Certificates

    Certificates Declaration of conformity We, Viessmann Werke GmbH & Co KG, D-35107 Allendorf, declare as sole respon- sible body that the product Vitocal 350-G, type BW 351.A18 and type BWS 351.A18, including heat pump control unit Vitotronic 200, type WO1C,...

  • Page 133: Keyword Index

    Keyword index Keyword index Checking the refrigerant circuit for Adjustable feet........23 leaks...........70 Aligning the appliance......23 Circulation pumps Ambient temperatures......23 – Parameters........76 Appliance MCB/fuses......88 Closing the heat pump.......65 Appliance too noisy......89 Coding level 1........72 Assembly, base frame Commissioning....69, 72, 131 – Type BW 351.A18......94 Commissioning order.......131 –...
  • Page 134 Keyword index Keyword index (cont.) Draining..........87 Flow temperature sensor, heating circuit Draining the heat pump......87 with mixer...........49 Frost stat........15, 19, 64 Economy tariff meter..57, 58, 60, 61 EEV PCB...........85 Heating circuit pump......76 Electrical components......84 – Parameters........76 Electrical connection......33 Heat pump –...
  • Page 135 Keyword index Keyword index (cont.) Main PCB........35, 85 Parameters Mains isolator........69 – Cooling function......80 Maintenance........69 – Electric booster heater....79 Making the hydraulic connections..27 – External functions......78 Maximum temperature limiter....38 – External heat source.......79 Minimum clearances......24 – For external extension....77 Minimum flow rate......29 –...
  • Page 136 Keyword index Keyword index (cont.) Primary circuit return temperature sen- Solar thermal system sor............86 – Parameter settings......80 Product information......6 Specification Programming unit.......85 – Brine/water heat pumps....127 Pt500..........87 – Water/water heat pumps....129 Pumps..........86 Standard tariff meter....57, 58, 60 Structure-borne noise......23 Swimming pool........53 Removing the heat pump module..89 System examples Removing the top panel.....27...
  • Page 137 Keyword index Keyword index (cont.) Weight..........23 Wall clearances........24 Wiring chamber........69 Warranty..........72 Water quality........70...
  • Page 140 Applicability Serial No.: 7514659 7514661 Viessmann Werke GmbH&Co KG Viessmann Limited D-35107 Allendorf Hortonwood 30, Telford Telephone: +49 6452 70-0 Shropshire, TF1 7YP, GB Fax: +49 6452 70-2780 Telephone: +44 1952 675000 www.viessmann.com Fax: +44 1952 675040 E-mail: info-uk@viessmann.com...

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