Viessmann Vitocal 222-G Installation And Service Instructions Manual
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Viessmann Vitocal 222-G Installation And Service Instructions Manual

Compact heat pumps, 400 v~ and 230 v~
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VIESMANN
Installation and service instructions
for contractors
Vitocal 222-G
Type BWT 221.A06 to A10
Type BWT-M 221.A06 to A10
Compact heat pumps, 400 V~ and 230 V~
For applicability, see the last page
VITOCAL 222-G
Please keep safe.
5674 003 GB
1/2017

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  • Page 1 VIESMANN Installation and service instructions for contractors Vitocal 222-G Type BWT 221.A06 to A10 Type BWT-M 221.A06 to A10 Compact heat pumps, 400 V~ and 230 V~ For applicability, see the last page VITOCAL 222-G Please keep safe. 5674 003 GB...
  • Page 2 ■ Safeguard the system against reconnection. Repair work Please note Repairing components that fulfil a safety func- tion can compromise the safe operation of your system. Replace faulty components with genuine Viessmann spare parts.
  • Page 3 Spare and wearing parts that have not been tes- ted together with the system can compromise its function. Installing non-authorised components and making non-approved modifications or con- versions can compromise safety and may inva- lidate our warranty. For replacement, use only spare parts supplied or approved by Viessmann.

  • Page 4: Table Of Contents

    ■ Viessmann NTC 20 k (orange marking) ........... 56 Ω ■ Viessmann Pt500A (green marking) ........... 57 ■ Checking the fuses ................57 Appliance is too noisy ................58 6. Parts lists type BWT 221.A Overview of assemblies ................. 60 (400 V~) Parts not shown ..................
  • Page 5 Index Index (cont.) Casing ....................62 Control unit and electrical equipment ............ 64 Heat pump module ................66 Hydraulics ....................68 Cylinder ....................70 7. Parts lists type Overview of assemblies ................. 72 BWT-M 221.A (230 V~) Parts not shown .................. 73 ■...
  • Page 6 Information Symbols Symbol Meaning Reference to other document containing further information Additional information, not safety relevant Step in a diagram: The numbering corresponds to the se- quence of work. The work sequences for commissioning, inspection and maintenance are summarised in the chapter "Commissioning, inspection and maintenance "and are marked as follows: Symbol...
  • Page 7 Information Product information Layout Central cooling The Vitocal 222-G is a brine/water heat pump with an Central cooling utilising the natural cooling function integral DHW cylinder. can be provided either by means of a heating/cooling Subject to type, the compressor operates either with circuit or via a separate cooling circuit.

  • Page 8: Requirements Regarding On-Site Connections

    Preparing for installation Requirements regarding on-site connections < 42 V 230 V~ 400 V~ Fig. 1 Primary circuit flow (heat pump brine inlet) DHW circulation Secondary circuit flow (heating water) Cold water Secondary circuit return (heating water) Primary circuit return (heat pump brine outlet) 1.

  • Page 9: Recommended Power Cables

    Preparing for installation Requirements regarding on-site connections (cont.) Recommended power cables Type BWT/BWT-M 221.A06 221.A08 221.A10 Heat pump control unit 230 V~ Cable cross-section Without power-OFF 3 x 1.5 mm 3 x 1.5 mm 3 x 1.5 mm ■ With power-OFF 5 x 1.5 mm 5 x 1.5 mm 5 x 1.5 mm...

  • Page 10: Minimum Clearances

    Preparing for installation Siting and transport requirements (cont.) Minimum room volume (to EN 378): Type BWT/ Floor area in Minimum room vol- BWT-M ume in m 221.A06 221.A08 221.A10 Minimum clearances Fig. 2 Minimum room height h Installation h in mm Without connection set for pre-instal- 2000 ■...

  • Page 11: Siting The Heat Pump

    Installation sequence Siting the heat pump Removing the cylinder module Fig. 3...
  • Page 12 Installation sequence Siting the heat pump (cont.) a:C] a:C] Fig. 4 Fig. 5...
  • Page 13 Installation sequence Siting the heat pump (cont.) Fig. 6...
  • Page 14 Installation sequence Siting the heat pump (cont.) Fig. 7...
  • Page 15 Installation sequence Siting the heat pump (cont.) Fig. 8...

  • Page 16: Removing The Heat Pump Module

    Installation sequence Siting the heat pump (cont.) Removing the heat pump module Fig. 9...
  • Page 17 Installation sequence Siting the heat pump (cont.) 9. 4x Fig. 10 Fig. 11...

  • Page 18: Assembly And Sealing Faces To Note

    Installation sequence Siting the heat pump (cont.) Assembly and sealing faces to note 2. Mount the cylinder module in reverse order to that described on page 11. Please note Leaking hydraulic connections lead to appli- ance damage. Make watertight hydraulic connections ■...

  • Page 19: Removing The Transport Brackets

    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 the transport brackets. Fig. 14 Hydraulic connections For arrangement of hydraulic connections: see page 8. Connecting the primary/secondary circuits Connecting the pipe sections or pipe bends sup- plied with the connection set (accessories)
  • Page 20 Installation sequence Hydraulic connections (cont.) 3. Connect primary pipes to heat pump. Please note Mechanically loaded hydraulic connections 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.

  • Page 21: Connecting The Dhw Side

    Installation sequence Hydraulic connections (cont.) 2. Connect secondary lines to the heat pump. Note ■ With underfloor heating circuits, install a temperature Please note limiter to restrict the maximum temperature of under- Mechanically loaded hydraulic connections floor heating systems: See chapter "Connecting a lead to leaks, vibration and appliance dam- temperature limiter to restrict the maximum tempera- age.

  • Page 22: Electrical Connections

    Installation sequence Hydraulic connections (cont.) Installation instructions for contact humidistat (24 V – ■ Install in the coolant flow of the room to be cooled. If necessary remove parts of the thermal installation in order to provide direct contact with the pipe. ■...

  • Page 23: Overview Of The Heat Pump Control Unit Electrical Connections

    Installation sequence Electrical connections (cont.) Overview of the heat pump control unit electrical connections a:C] a:C] 400 V / 50 Hz 230 V / 400 V / 50 Hz 50 Hz 230 V / 50 Hz Fig. 19 Expansion PCB on main PCB: connect nothing on site.

  • Page 24: Main Pcb (230 V~ Components)

    Installation sequence Electrical connections (cont.) Main PCB (230 V~ components) Information regarding the connection values Set the required parameters during commissioning: The specified output is the recommended connected see page 42 onwards. ■ load. ■ The total output of all components connected directly to the heat pump control unit (e.g.
  • Page 25 Installation sequence Electrical connections (cont.) Plug Terminals Function Explanation 212.3 DHW circulation pump Connection values Output: 50 W ■ Voltage: 230 V~ ■ Max. switching current: 4(2) A ■ 212.4 3-way diverter valve for heating water Connection values buffer cylinder bypass or heat pump Output: 130 W ■...

  • Page 26: Expansion Pcb On Main Pcb (230 V~ Components)

    Installation sequence Electrical connections (cont.) Expansion PCB on main PCB (230 V~ components) Do not make any on-site connections. Luster terminals (alarm and safety connections) Set the required parameters during commissioning: see page 42 onwards. Terminals Function Explanation X3.1 Switched phase Via control unit ON/OFF switch Note Observe the total load 1000 W of all connected compo-...

  • Page 27: Controller And Sensor Pcb (Lv Connections)

    Installation sequence Electrical connections (cont.) Terminals Function Explanation X3.8 Pressure switch, primary circuit Requires floating N/C contact: X3.9 and/or Closed: Continuous safety chain ■ Open: Safety chain interrupted; heat pump shut down ■ Breaking capacity 230 V~, 0.15 A ■ Connection: Connected in series if both safety components are in- ■...
  • Page 28 — Connection for Viessmann appliances, e.g. Vitovent 300-F Note If further Viessmann appliances are to be connected to Modbus 1, plug in the Modbus distributor (accessories) (see "Modbus distributor" installation in- structions). Connection for LON communication module (see "LON communication mod- —...

  • Page 29: Power Supply

    Installation sequence Power supply Isolators for non-earthed conductors The assignment of the power-OFF (for compressor ■ ■ Install an isolator in the power cable to provide and/or instantaneous heating water heater) is made omnipolar separation from the mains for all active via the type of connection and by setting parameters conductors, corresponding to overvoltage category in the heat pump control unit.

  • Page 30: Heat Pump Control Unit Power Supply 230 V

    Installation sequence Power supply (cont.) Heat pump control unit power supply 230 V~ Note This supply must never be blocked. ■ Max. fuse rating 16 A ■ Standard tariff (no economy tariff with power-OFF possible) ■ Recommended power cable: 3 x 1.5 mm (5 x 1.5 mm with power-OFF) F1 T6,3AH...

  • Page 31: Connecting 230 V~ Instantaneous Heating Water Heater Power Supply

    Installation sequence Power supply (cont.) Connecting 230 V~ instantaneous heating water heater power supply 230V / 50 Hz Max. fuse rating 16 A: See "Specification". ■ 1/N/PE Economy tariff and power-OFF can be applied ■ ■ Recommended power cable: 7 x 2.5 mm Max.
  • Page 32 Installation sequence Power supply (cont.) X3.7 X3.6 X3.18/X2.1/X1.1 5 (400 V~) (230 V~) ≈ Fig. 30 Diagram excluding fuses and RCDs Heat pump control unit Instantaneous heating water heater Compressor Heat pump control unit power supply Premium tariff meter Ripple control receiver backup fuse Ripple control receiver (contact open: power-OFF enabled) with backup fuse Economy tariff meter...

  • Page 33: Mains Power Supply In Conjunction With On-Site Power Consumption

    Installation sequence Power supply (cont.) Mains power supply in conjunction with on-site power consumption Without power-OFF E1E2 D /D L1 L1 L2 L2 L3 L3 Fig. 31 Heat pump Bi-directional meter (for PV systems to consume Additional consumers (of power generated on site) power on site): Energy taken from power supply utility and energy in the household...

  • Page 34: Phase Monitor (Accessories)

    Installation sequence Power supply (cont.) [{{] 0-10V Fig. 32 EA1 extension Floating N/O contact 2: The agreement of the Connection to controller and sensor PCB power supply utility may be required Floating N/O contact 1: The agreement of the Power supply 1/N/PE 230 V/50 Hz power supply utility may be required Note ■...
  • Page 35 Installation sequence Power supply (cont.) Version 1 Version 2 N 11 21 <>U <>U L1 L2 L3 12 14 22 24 Fig. 34 LEDs explained in Fig. 34 Fig. 33 Voltage "U": ■ Illuminates green if voltage is applied. Over/undervoltage in % Relay "R": Phase asymmetry in % ■...

  • Page 36: Make Connections At Terminals X3.8/X3.9

    Installation sequence Power supply (cont.) Version 3 LEDs explained in Fig. 35 Voltage "Un": ■ Illuminates green if voltage is applied. Relay "R": ■ Illuminates yellow if the phase sequence is cor- rect. L1, L2, L3 Does not illuminate if the phase sequence is ■...

  • Page 37: Steps - Commissioning, Inspection And Maintenance

    Commissioning, inspection, maintenance Steps - commissioning, inspection and maintenance Commissioning steps Inspection steps Maintenance steps Page • • • 1. Opening the heat pump..................... 38 • 2. Writing reports........................38 • • • 3. Checking the refrigerant circuit for leaks................ 38 •...

  • Page 38: Opening The Heat Pump

    Commissioning, inspection, maintenance Opening the heat pump Danger Please note Contact with 'live' components can lead to seri- Commissioning immediately after installation ous injury from electric current. can lead to appliance damage. ■ Never touch the wiring chambers (for heat Wait at least 30 min between installing and pump control unit and power supply connec- commissioning the appliance.

  • Page 39: Filling And Venting The Primary Side

    Temperature differential between primary circuit flow and return: 3 K to 5 K 1. Check the pre-charge pressure of the expansion vessel. 2. Charge the primary circuit with Viessmann heat transfer medium and vent. Note Ensure frost protection down to 19 °C.
  • Page 40 Commissioning, inspection, maintenance Filling and venting the secondary side (cont.) Fig. 36 5. Open any non-return valves installed on site. 6. Check the pre-charge pressure of the expansion vessel: see page 41. 7. Fill (flush) and vent secondary circuit: Open air vent valve of the secondary circuit. ■...

  • Page 41: Checking The Expansion Vessel And Heating Circuit Pressure

    Commissioning, inspection, maintenance Checking the expansion vessel and heating circuit pressure Observe engineering information. Technical guides for heat pumps Cleaning the DHW cylinder Danger Please note Uncontrolled escape of DHW or heat transfer A short circuit between the magnesium anode medium can cause scalding and building dam- and the internal indirect coil negates the protec- age.

  • Page 42: Checking The Anode Protective Current With An Anode Tester

    Commissioning, inspection, maintenance Checking the anode protective current with an anode tester 1. Remove cover and pull earth cable 2. Connect the tester (measuring range up to 5 mA) from tab See Fig. in chapter "Cleaning the DHW cylinder". in series across tab and earth cable Anode pro- Magnesium anode...
  • Page 43 Commissioning, inspection, maintenance Commissioning the system (cont.) Commissioning with the commissioning assistant The commissioning assistant automatically guides you Switch ON the ON/OFF switch on the control unit. through all the menus where settings have to be made. The prompt "Start commissioning?" appears auto- ■...
  • Page 44 Commissioning, inspection, maintenance Commissioning the system (cont.) language date/time time date Start commissioning? Coding Select level 1 parameter group parameter Temperature Display sensors sensor values Signal inputs Display signal inputs Actuator test Carry out actuator test Subscriber check (LON) Carry out subscriber check Start Functional...
  • Page 45 Commissioning, inspection, maintenance Commissioning the system (cont.) Required parameters for components connected on site Parameters may need to be set subject to the type of Detailed explanations of parameters appliance, the selected system scheme and the acces- "Vitotronic 200" service instructions sories used.
  • Page 46 Commissioning, inspection, maintenance Commissioning the system (cont.) Parameters for pumps and other components Parameter Setting Heating circuit pump "System definition" Ó "System scheme 7000" With heating circuit A1/HC1 for heat- ■ ing circuit without mixer With heating circuit M2/HC2 for ■...
  • Page 47 Commissioning, inspection, maintenance Commissioning the system (cont.) Parameters for external functions Parameter Setting External demand If applicable "Internal hydraulics" Ó "Flow temperature for external demand 730C" Set flow temperature for external de- mand External starting of the compressor; mixer in control mode or OPEN "System definition"...
  • Page 48 Commissioning, inspection, maintenance Commissioning the system (cont.) Parameters for swimming pool water heating Parameter Setting "System definition" Ó "External extension 7010" "1" or "3" "Swimming pool 7008" "1" Parameters for ventilation Parameter Setting "Ventilation" Ó "Vitovent enable 7D00" "1" Other enabling settings, if applicable: "Ventilation"...

  • Page 49: Checking The System Function

    Commissioning, inspection, maintenance Commissioning the system (cont.) Parameters for Smart Grid Parameter Setting "Smart Grid" Ó "Enable Smart Grid 7E80" "1" "Smart Grid Enable elec heat 7E82" "1" Stage 1 "2" Stage 2 "3" Stage 3 Specify the temperature differential to the selected set value for the chosen function. "Smart Grid"...

  • Page 50: Instructing The System User

    Commissioning, inspection, maintenance Checking the system function (cont.) Fig. 41 Reset button Instructing the system user The system installer should hand the operating instruc- tions to the system user and instruct the user in oper- ating the system. This includes all components installed as accessories, e.g.

  • Page 51: Overview Of Electrical Components

    Maintenance Overview of electrical components Type BWT 221.A (400 V~) Reset button of the high limit safety cut-out of the instantaneous heating water heater Compressor contactor Cable channel 3 rows of luster terminals Controller and sensor PCB Programming unit Main PCB Expansion PCB on the main PCB Compressor power supply Switching module with power supply for instanta-...
  • Page 52 Maintenance Overview of electrical components (cont.) Type BWT-M 221.A (230 V~) Reset button of the high limit safety cut-out of the instantaneous heating water heater Compressor contactor Cable channel 3 rows of luster terminals Controller and sensor PCB Programming unit Main PCB Expansion PCB on the main PCB Compressor power supply...

  • Page 53: Opening Programming Unit

    Maintenance Opening programming unit Fig. 44 Removing cover from programming unit, if necessary Fig. 45...

  • Page 54: Overview Of Internal Components

    Maintenance Overview of internal components Secondary circuit flow temperature sensor Cylinder temperature sensor Primary circuit flow temperature sensor (heat pump brine inlet) Secondary circuit return temperature sensor Secondary pump Primary pump Compressor 3-way diverter valve for "central heating/DHW heating" Connection at terminals: 1, 2 Klixon hot gas 3, 4 Low pressure switch 5, 6 Safety high pressure switch...

  • Page 55: Dhw Cylinder Drain & Fill Valve Positions

    Maintenance DHW cylinder drain & fill valve positions Fig. 47 Closed Open to drain the internal DHW line Open to drain or fill the cylinder Draining the heat pump on the secondary side 1. Close the on-site boiler drain & fill valve. 2.

  • Page 56: Viessmann Ntc 10 K

    Maintenance Checking the sensors (cont.) Viessmann NTC 10 k (blue marking) Ω Outside temperature sensor Other sensors Temperature in °C Temperature in °C Fig. 48 Fig. 49 Viessmann NTC 20 k (orange marking) Ω Temperature in °C Fig. 50...

  • Page 57: Viessmann Pt500A (Green Marking)

    Maintenance Checking the sensors (cont.) Viessmann Pt500A (green marking) Temperature in °C Fig. 51 Checking the fuses For fuse locations, see page 23 onwards. Fuse F1 is located on the mains terminal of the heat Fuses F1 and F3: ■...

  • Page 58: Appliance Is Too Noisy

    Maintenance Appliance is too noisy Possible causes: ■ Transport bracket not removed: see page 19. ■ Casing door not closed: see page 18. ■ The secondary circuit return line touches the primary circuit return line, other lines or the compressor. Fig.
  • Page 59 Maintenance Appliance is too noisy (cont.)

  • Page 60: Overview Of Assemblies

    Parts lists type BWT 221.A (400 V~) Overview of assemblies The following details are required when ordering parts: ■ Serial no. (see type plate ■ Assembly (from this parts list) ■ Position number of the individual part within the assembly (from this parts list) Fig.

  • Page 61: Parts Not Shown

    The following details are required when ordering parts: ■ Serial no. (see type plate in Fig. 53) ■ Position number of the part (from this parts list) Pos. Part 0006 Touch-up spray paint, white 0007 Touch-up paint stick, white 0008 Vitocal 222-G installation and service instructions...

  • Page 62: Casing

    Parts lists type BWT 221.A (400 V~) Casing 0003 0006 0005 0001 0008 0004 0007 0009 0002 0010 Fig. 54...
  • Page 63 Front panel, top, with logo 0002 Front panel, bottom 0003 Side panel, left 0004 Side panel, right 0005 Top panel, front 0006 Top panel, back 0007 Support, heat pump control unit 0008 Viessmann logo and Vitocal logo 0009 Screws (set) 0010 Fixing parts (set)

  • Page 64: Control Unit And Electrical Equipment

    Parts lists type BWT 221.A (400 V~) Control unit and electrical equipment 0014 0016 0015 0010 0001 0012 0014 0015 0017 0011 0016 0040 0017 0007 0006 0038 0039 0013 0004 0005 0041 0002 0003 0042 0032 0035 0036 0019 0018 0022 0029...
  • Page 65 Parts lists type BWT 221.A (400 V~) Control unit and electrical equipment (cont.) Pos. Part 0001 Programming unit 0002 Controller and sensor PCB with cover (CU401) 0003 Base support, controller and sensor PCB 0004 Main PCB with cover (MB761) 0005 Base support, main PCB 0006 Expansion PCB with cover (SA135)

  • Page 66: Heat Pump Module

    Parts lists type BWT 221.A (400 V~) Heat pump module 0045 0024 0003 0039 0039 0028 0039 0039 0016 0035 0023 0006 0032 0016 0034 0014 0002 0011 0036 0025 0034 0013 0017 0016 0042 0038 0014 0010 0043 0012 0018 0026 0009...
  • Page 67 Parts lists type BWT 221.A (400 V~) Heat pump module (cont.) Pos. Part 0001 Compressor 0002 Heat exchanger (evaporator) 0003 Heat exchanger (condenser) 0004 Thermal expansion valve TEV 0005 Filter dryer 0006 Safety high pressure switch 0007 Low pressure switch 0008 Thermal circuit breaker 140 °C to 120 °C 0009...

  • Page 68: Hydraulics

    Parts lists type BWT 221.A (400 V~) Hydraulics 0004 0033 0025 0033 0040 0035 0035 0033 0033 0033 0036 0009 0036 0025 0037 0035 0033 0017 0032 0033 0022 0013 0035 0033 0035 0039 0035 0036 0036 0014 0036 0037 0012 0034 0036...
  • Page 69 Parts lists type BWT 221.A (400 V~) Hydraulics (cont.) Pos. Part 0001 Back panel, lower casing 0002 Base plate 0003 Anti-vibration mount 0004 Top panel, lower casing 0005 Strut, lower casing, left 0006 Strut, lower casing, right 0007 Retaining rail 0008 Insulation, base plate 0009...

  • Page 70: Cylinder

    Parts lists type BWT 221.A (400 V~) Cylinder 0007 0030 0028 0019 0012 0028 0008 0013 0016 0019 0014 0028 0028 0015 0028 0004 0023 0015 0001 0014 0002 0018 0029 0020 0017 0028 0016 0010 0028 0024 0029 0028 0029 0011 0009...
  • Page 71 Parts lists type BWT 221.A (400 V~) Cylinder (cont.) Pos. Part 0001 DHW cylinder with internal indirect coil 170 l 0002 Back panel, casing top 0003 Retaining bracket for connection hoses 0004 Retaining bracket, DHW cylinder 0005 Hose, DHW heating return 0006 Hose, DHW heating flow 0007...

  • Page 72: Parts Lists Type Overview Of Assemblies

    Parts lists type BWT-M 221.A (230 V~) Overview of assemblies The following details are required when ordering parts: ■ Serial no. (see type plate ■ Assembly (from this parts list) ■ Position number of the individual part within the assembly (from this parts list) Fig.

  • Page 73: Bwt-M 221.A (230 V~) ■ Parts Not Shown

    The following details are required when ordering parts: ■ Serial no. (see type plate in Fig. 59) ■ Position number of the part (from this parts list) Pos. Part 0006 Touch-up spray paint, white 0007 Touch-up paint stick, white 0008 Vitocal 222-G installation and service instructions...

  • Page 74: Casing

    Parts lists type BWT-M 221.A (230 V~) Casing 0011 0003 0006 0005 0001 0008 0004 0007 0009 0002 0010 Fig. 60...
  • Page 75 Front panel, bottom 0003 Side panel, left 0004 Side panel, right 0005 Top panel, front 0006 Top panel, back 0007 Support, heat pump control unit 0008 Viessmann logo and Vitocal logo 0009 Screws (set) 0010 Fixing parts (set) 0011 Top panel, front...

  • Page 76: Control Unit And Electrical Equipment

    Parts lists type BWT-M 221.A (230 V~) Control unit and electrical equipment 0014 0016 0015 0012 0001 0014 0010 0040 0015 0016 0017 0006 0017 0007 0039 0011 0038 0013 0004 0005 0002 0003 0041 0019 0042 0032 0029 0035 0018 0036 0027...
  • Page 77 Parts lists type BWT-M 221.A (230 V~) Control unit and electrical equipment (cont.) Pos. Part 0001 Programming unit 0002 Controller and sensor PCB with cover (CU401) 0003 Base support, controller and sensor PCB 0004 Main PCB with cover (MB761) 0005 Base support, main PCB 0006 Expansion PCB with cover (SA135)

  • Page 78: Heat Pump Module

    Parts lists type BWT-M 221.A (230 V~) Heat pump module 0045 0024 0003 0039 0039 0028 0039 0039 0016 0035 0023 0006 0032 0016 0034 0014 0002 0011 0036 0025 0034 0013 0017 0016 0042 0038 0014 0010 0043 0012 0018 0026 0009...
  • Page 79 Parts lists type BWT-M 221.A (230 V~) Heat pump module (cont.) Pos. Part 0001 Compressor 0002 Heat exchanger (evaporator) 0003 Heat exchanger (condenser) 0004 Thermal expansion valve TEV 0005 Filter dryer 0006 Safety high pressure switch 0007 Low pressure switch 0008 Thermal circuit breaker 140 °C to 120 °C 0009...

  • Page 80: Hydraulics

    Parts lists type BWT-M 221.A (230 V~) Hydraulics 0004 0033 0025 0033 0040 0035 0035 0033 0033 0033 0036 0009 0036 0025 0037 0035 0033 0017 0032 0033 0022 0013 0035 0033 0035 0039 0035 0036 0036 0014 0036 0037 0012 0034 0036...
  • Page 81 Parts lists type BWT-M 221.A (230 V~) Hydraulics (cont.) Pos. Part 0001 Back panel, lower casing 0002 Base plate 0003 Anti-vibration mount 0004 Top panel, lower casing 0005 Strut, lower casing, left 0006 Strut, lower casing, right 0007 Retaining rail 0008 Insulation, base plate 0009...

  • Page 82: Cylinder

    Parts lists type BWT-M 221.A (230 V~) Cylinder 0007 0030 0028 0019 0012 0028 0008 0013 0016 0019 0014 0028 0028 0015 0028 0004 0023 0015 0001 0014 0002 0018 0029 0020 0017 0028 0016 0010 0028 0024 0029 0028 0029 0011 0009...
  • Page 83 Parts lists type BWT-M 221.A (230 V~) Cylinder (cont.) Pos. Part 0001 DHW cylinder with internal indirect coil 170 l 0002 Back panel, casing top 0003 Retaining bracket for connection hoses 0004 Retaining bracket, DHW cylinder 0005 Hose, DHW heating return 0006 Hose, DHW heating flow 0007...

  • Page 84: Mounting Set

    Parts lists type BWT-M 221.A (230 V~) Mounting set 0004 0005 0006 0001 0002 0003 0003 0002 Fig. 65...
  • Page 85 Parts lists type BWT-M 221.A (230 V~) Mounting set (cont.) Pos. Part 0001 Flange for magnesium anode 0002 Magnesium anode 0003 Flange gasket 0004 Safety valve 0005 Extension R x 30 mm ½ 0006 Flange insulation...

  • Page 86: Commissioning/Service Hydraulic Parameters Report

    Commissioning/service reports Hydraulic parameters report Setting and test values Setpoint Commissioning Maintenance/ Service Frost protection (brine medium) °C – Testing the external heating circuit pumps Circulation pump type Circulation pump stage Overflow valve setting Commissioning, primary circuit Primary circuit flow temperature °C ("Diagnosis"...
  • Page 87 Commissioning/service reports Control parameter report (cont.) Parameter Code Delivered condition Commission- Maintenance/ service "Operating status for external change- 7012 over" "Duration of external changeover" 7013 "Effect of external demand on heat 7014 pump/heating circuits" "Effect of ext. blocking on heat pump/ 7015 heating circuits"...
  • Page 88 Commissioning/service reports Control parameter report (cont.) Parameter Code Delivered condition Commission- Maintenance/ service ≙ "Set DHW temperature" 6000 500 ( 50 °C) ≙ "Min. DHW temperature" 6005 100 ( 10 °C) ≙ "Max. DHW temperature" 6006 600 ( 60 °C) ≙...
  • Page 89 Commissioning/service reports Control parameter report (cont.) Internal hydraulics Parameter Code Delivered condition Commission- Maintenance/ service "Heat pump for drying a building" 7300 "Time program for screed drying" 7303 ≙ "Set flow temperature for external de- 730C 500 ( 50 °C) mand"...
  • Page 90 Commissioning/service reports Control parameter report (cont.) Cooling Parameter Code Delivered condition Commission- Maintenance/ Service "Cooling function" 7100 "Cooling circuit" 7101 ≙ "Set room temperature separate cooling 7102 200 ( 20 °C) circuit" ≙ "Min. flow temperature cooling" 7103 100 ( 10 °C) "Influence room temperature hook-up 7104...
  • Page 91 Commissioning/service reports Control parameter report (cont.) Photovoltaics Parameter Code Delivered condition Commission- Maintenance/ service "Enable own energy consumption PV" 7E00 ≙ "Prop. of external current" 7E02 10 ( 10 %) ≙ "Threshold for electrical power" 7E04 0 W) "Enable own energy consumptn for set 7E10 DHW temperature 2"...
  • Page 92 Commissioning/service reports Control parameter report (cont.) Communication Parameter Code Delivered condition Commission- Maintenance/ service "Enable LON communication module" 7710 "LON subscriber number" 7777 "LON fault manager" 7779 "LON system number" 7798 "Interval for data transfer via LON" 779C 20 min "Source outside temperature"...

  • Page 93: Specification

    Specification Specification 400 V appliances Type BWT 221.A06 221.A08 221.A10 Output data to EN 14511 (B0/W35, 5 K spread) Rated heating output 10.0 Cooling capacity Power consumption 1.40 1.87 2.35 Coefficient of performance (COP) ε Output data with reference to EN 255 (B0/W35, 10 K spread) Rated heating output 10.4...
  • Page 94 Specification Specification (cont.) Type BWT 221.A06 221.A08 221.A10 Power consumption Primary pump (high efficiency circulation pump) W 4 to 72 ■ Secondary pump (high efficiency circulation 6 to 87 ■ pump) Max. power consumption, control unit 1000 1000 1000 Rated output, control unit/PCB Refrigerant circuit Refrigerant R410A...
  • Page 95 Specification Specification (cont.) 230 V appliances Type BWT-M 221.A06 221.A08 221.A10 Output data to EN 14511 (B0/W35, 5 K spread) Rated heating output 10.1 Cooling capacity Power consumption 1.50 1.86 2.36 Coefficient of performance (COP) ε Output data with reference to EN 255 (B0/W35, 10 K spread) Rated heating output 10.4...
  • Page 96 Specification Specification (cont.) Type BWT-M 221.A06 221.A08 221.A10 Refrigerant circuit Refrigerant R410A R410A R410A Refrigerant charge 2.05 Compressor Type Hermetically sealed scroll compressor Oil in compressor Type Emkarate RL32 3MAF Permiss. operating pressure High pressure side ■ Low pressure side ■...

  • Page 97: Appendix Commissioning Order

    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 98: Declaration Of Conformity Declaration Of Conformity

    Vitocal 222-G, type BWT/BWT-M 221.A including heat pump control unit Vitotronic 200, type WO1C We, Viessmann Werke GmbH & Co. KG, D-35107 Allendorf, declare as sole responsible body that the named product complies with the provisions of the following directives and regulations:...

  • Page 99: Keyword Index

    Keyword index Keyword index Connection values Air vent valve – Circulation pumps........... 26 – Primary circuit............54 – Components............26 – Secondary circuit.............54 Contact humidistat..........22, 27 Ambient temperatures..........9 Controller and sensor PCB...... 51, 52, 65, 77 Anode protective current..........42 Control parameters............
  • Page 100 Keyword index Keyword index (cont.) Expansion vessel............39 Instantaneous heating water – Checking..............41 heater........... 31, 32, 47, 54, 93, 95 Extended menu............44 – Power supply.............30, 31 Extension kit, mixer..........27, 46 – Resetting high limit safety cut-out......49 External extension............46 Instantaneous heating water heater switching mod- External functions............47...
  • Page 101 Keyword index Keyword index (cont.) Overview Power supply............29, 34 – Electrical connections..........51 – Compressor..........30, 51, 52 – Internal components..........54 – Heating water heat pump control unit..... 27 – Pumps..............54 – Heat pump control unit........ 30, 31, 32 – Sensors..............54 –...
  • Page 102 Keyword index Keyword index (cont.) Secondary circuit Temperature sensor – Connecting.............. 20 – Curve, type NTC 10 k ........... 56 Ω – Draining..............55 – Curve, type NTC 20 k ........... 56 Ω – Filling and venting........... 39 – Curve, type Pt500A..........57 Secondary pump..........
  • Page 104 Applicability Serial No.: 7549167 7549168 7549169 7549170 7549171 7549172 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...

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