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Connection and wiring diagram
for contractors
Vitocal 200-G
Type BWC 201.B, 400 V~
Type BWC-M 201.B, 230 V~
Heat pump with electric drive
Brine/water heat pump: 5.7 to 17.4 kW
With conversion kit to water/water heat pump: 7.5 to 22.6 kW
VITOCAL 200-G
6152053 GB
1/2020
VIESMANN
Please keep safe.

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Summary of Contents for Viessmann BWC 201.B

  • Page 1 VIESMANN Connection and wiring diagram for contractors Vitocal 200-G Type BWC 201.B, 400 V~ Type BWC-M 201.B, 230 V~ Heat pump with electric drive Brine/water heat pump: 5.7 to 17.4 kW ■ With conversion kit to water/water heat pump: 7.5 to 22.6 kW ■...
  • Page 2 Safety instructions Safety instructions Please follow these safety instruc- tions closely to prevent accidents and material losses. Safety instructions explained Danger Note This symbol warns against the risk Details identified by the word "Note" of injury. contain additional information. Please note This symbol warns against the risk of material losses and environmen- tal pollution.
  • Page 3 Safety instructions Safety instructions (cont.) Safety instructions for working on the system Working on the system Please note Electronic assemblies can be dam- Isolate the system from the power sup- ■ aged by electrostatic discharge. ply, e.g. by removing the separate fuse Prior to commencing work, touch or by means of a mains isolator, and earthed objects such as heating or...
  • Page 4 Further measures before starting work Replace faulty components only on the refrigerant circuit with flammable with genuine Viessmann spare refrigerants (R32): parts. Remove all flammable materials and ■ Auxiliary components, spare and...
  • Page 5: Table Of Contents

    Index Index Notes Notes ..................... Electrical equipment ................Connection and wiring dia- Sheet 1: Compressor 400 V~ ..............gram Sheet 1a: Compressor 230 V~ .............. Sheet 2: Heat pump control unit power supply 230 V~ ......Sheet 2a: Heat pump control unit power supply 230 V~ ....... Sheet 3: EEV PCB (refrigerant circuit controller [4-7]) ......
  • Page 6 Notes Notes Observe the information on electrical connections in ■ the installation and service instructions. ■ In the case of a power supply with power-OFF facility, the power to the control circuit (heat pump control unit) must be supplied without interruption by the power supply utility.
  • Page 7: Sheet 1: Compressor 400 V

    Connection and wiring diagram Sheet 1: Compressor 400 V~ Fig. 1 Compressor power supply Full wave soft starter Mains terminals, compressor Male jack, compressor Compressor contactor Compressor motor Thermal relay, compressor Phase monitor...
  • Page 8: Sheet 1A: Compressor 230 V

    Connection and wiring diagram Sheet 1a: Compressor 230 V~ 2a.6 Fig. 2 Compressor power supply Relay, control circuit of full wave soft starter Mains terminals, compressor Full wave soft starter Compressor contactor Run capacitor Thermal relay, compressor Male jack, compressor Fuse, control circuit of full wave soft starter Compressor motor Sheet 2: Heat pump control unit power supply 230 V~...
  • Page 9: Sheet 2A: Heat Pump Control Unit Power Supply 230 V

    Connection and wiring diagram Sheet 2: Heat pump control unit power supply… (cont.) Fig. 3 Mains terminals, heat pump control unit External demand Heat pump control unit fuse 6.3 A (slow) External blocking Heat pump control unit ON/OFF switch Plug, safety chain Primary circuit flow switch Safety high pressure switch Primary circuit pressure switch and/or frost stat...
  • Page 10 Connection and wiring diagram Sheet 2a: Heat pump control unit power supply… (cont.) Fig. 4 Mains terminals, heat pump control unit External blocking Heat pump control unit fuse 6.3 A (slow) Jumper Heat pump control unit ON/OFF switch Relay, control circuit of full wave soft starter Primary circuit flow switch Plug, safety chain Primary circuit pressure switch and/or frost stat...
  • Page 11: Sheet 3: Eev Pcb (Refrigerant Circuit Controller [4-7])

    Connection and wiring diagram Sheet 3: EEV PCB (refrigerant circuit controller [4-7]) PWM in PWM out +8.2 V PWM out +8.2 V GND1 6.3 -B- /6.3 -A+/6.3 Fig. 5 Never connect anything here. Liquid gas temperature sensor (NTC 10 k Ω...
  • Page 12: Sheet 4: Main Pcb

    Connection and wiring diagram Sheet 3: EEV PCB (refrigerant circuit… (cont.) Primary pump Compressor relay (230 V~) Secondary pump Enable compressor switching Sheet 4: Main PCB Fig. 6 External demand Safety high pressure switch External blocking Primary circuit flow switch Power-OFF Thermal relay Phase monitor (if installed) or jumper...
  • Page 13: Sheet 5: Expansion Pcb

    Connection and wiring diagram Sheet 4: Main PCB (cont.) Output relay for instantaneous heating water heater, stage 2 Output relay for instantaneous heating water heater, stage 1 Sheet 5: Expansion PCB Fig. 7 Ribbon cable to the controller and sensor PCB Instantaneous heating water heater output relay, stage 2...
  • Page 14: Sheet 6: Controller And Sensor Pcb

    Connection and wiring diagram Sheet 6: Controller and sensor PCB Fig. 8 Ribbon cable to the main PCB and expansion PCB Return temperature sensor, primary circuit Ribbon cable to the programming unit Modbus: Connecting cable to EEV PCB Coding card Sheet 7: Instantaneous heating water heater For heat pumps with 400 V~ compressor...
  • Page 15 Connection and wiring diagram Sheet 7: Instantaneous heating water heater (cont.) Fig. 9 Power supply for instantaneous heating water High limit safety cut-out for instantaneous heating heater water heater Mains terminals, instantaneous heating water Instantaneous heating water heater heater Output relay for instantaneous heating water heater: K1 Stage 1 K2 Stage 2...
  • Page 16: Sheet 7B: Instantaneous Heating Water Heater

    Connection and wiring diagram Sheet 7b: Instantaneous heating water heater For heat pumps with 230 V~ compressor Fig. 10 Power supply for instantaneous heating water Instantaneous heating water heater output relay, heater stage 2 Mains terminals, instantaneous heating water High limit safety cut-out for instantaneous heating heater water heater Instantaneous heating water heater output relay,...
  • Page 20 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...

This manual is also suitable for:

Vitocal 200-gBwc-m 201.b

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