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

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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 pump, 400 V~ and 230 V~
For applicability, see the last page
VITOCAL 222-G
Please keep safe.
5772 567 GB
5/2013

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Summary of Contents for Viessmann VITOCAL 222-G

  • 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 pump, 400 V~ and 230 V~ For applicability, see the last page VITOCAL 222-G Please keep safe. 5772 567 GB...

  • Page 2: Safety Instructions

    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......................Requirements regarding on-site connections............Overview of possible system schemes..............Designations in the system examples..............10 System example, ID: 4605445_1201_02............. 10 Installation sequence Siting the heat pump.................... 16 Hydraulic connections..................29 Electrical connections................... 32 Connecting power cables..................
  • Page 5 Index Index (cont.) Cylinder........................ 109 Fitting set......................111 Commissioning/service reports Hydraulic parameter report................... 113 Control parameters report..................113 Specification....................... 120 Appendix Commissioning order................... 125 Declaration of conformity.................. 126 Keyword index....................127...

  • Page 6: Intended Use

    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: Requirements Regarding On-Site Connections

    Preparing for installation Requirements regarding on-site connections < 42 V 230 V~ 400 V~ A DHW D Primary circuit return (heat pump B DHW circulation brine outlet) C Cold water...
  • Page 8 Preparing for installation Requirements regarding on-site connections (cont.) E Primary circuit flow (heat pump brine inlet) F Secondary circuit flow (heating water) G Secondary circuit return (heating water) 1. Prepare the connections on the heat- 2. Prepare the electrical connections. ing water and the DHW side.

  • Page 9: Overview Of Possible System Schemes

    Preparing for installation Overview of possible system schemes The following table provides an overview of all possible system schemes. System schemes Component System scheme Heating circuit A1/HC1 — — — — M2/HC2 — — — — DHW cylinder — — —...

  • Page 10: 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-- System example, ID: 4605445_1201_02 Note This scheme is a general example with- out shut-off valves or safety equipment. This does not replace the need for on- site engineering.
  • Page 11 Preparing for installation System example, ID: 4605445_1201_02 (cont.) Hydraulic installation scheme -8/145- -8/145- --75/2-- --75/20-- --2/212.2-- --75/20-- --75/52-- --2/212.3-- --2/F0--...
  • Page 12 System example, ID: 4605445_1201_02 (cont.) Equipment required Pos. Description Heat source Vitocal 222-G compact heat pump: ■ Integral control unit Vitotronic 200, type WO1C ■ Primary pump ■ Secondary pump ■ 3-way diverter valve for "Heating/DHW heating" ■ DHW cylinder ■...
  • Page 13 Preparing for installation System example, ID: 4605445_1201_02 (cont.) Pos. Description Heating circuit without mixer A1 Radiator heating circuit Vitotrol remote control Heating circuit pump Electrical installation scheme For an overview of the electrical connec- For information regarding the power sup- tions and more information on the PCBs, ply, see page 44.
  • Page 14 Preparing for installation System example, ID: 4605445_1201_02 (cont.) KM BUS distributor HC M2 HC A1 HC M2 230 V/50 Hz 1 / N / PE 100 W UP M2 NTC 10 kΩ VTS M2 NTC 10 kΩ NTC 10 kΩ 1 / N / PE 230 V, 50 Hz 1 / N / PE...
  • Page 15 Preparing for installation System example, ID: 4605445_1201_02 (cont.) Required parameter settings To call up "Coding level 1" for setting the parameters, see the commissioning assistant on page 63 and page 66. Parameter Setting "System definition" ■ "System scheme 7000" "6" DHW heating: "Time program DHW heating"...

  • Page 16: Siting The Heat Pump

    Installation sequence Siting the heat pump Installation room requirements Please note Total weight with filled DHW cylinder The installation room must be dry Type BWT/BWT- Weight in kg and free from the risk of frost. Ambient temperatures of 0 to 221.A06 35 ºC must be ensured.
  • Page 17 Installation sequence Siting the heat pump (cont.) Minimum clearances Minimum room height h Installation h in mm ■ Without connection set for 2000 pre-installation/DHW (ac- cessories) ■ With connection set for 2100 pre-installation/DHW (ac- cessories) Observe engineering informa- tion. Vitocal technical guide Handling During handling, the cylinder module can Please note...
  • Page 18 Installation sequence Siting the heat pump (cont.) Removing the cylinder module...
  • Page 19 Installation sequence Siting the heat pump (cont.)
  • Page 20 Installation sequence Siting the heat pump (cont.)
  • Page 21 Installation sequence Siting the heat pump (cont.)
  • Page 22 Installation sequence Siting the heat pump (cont.)
  • Page 23 Installation sequence Siting the heat pump (cont.)
  • Page 24 Installation sequence Siting the heat pump (cont.) Removing the heat pump module...
  • Page 25 Installation sequence Siting the heat pump (cont.) 9. 4x...
  • Page 26 Installation sequence Siting the heat pump (cont.) Assembly and sealing faces to note 2. Fit the cylinder module in reverse order to that described on page 18. Please note Make tight hydraulic connec- tions between the heat pump module and cylinder module. Ensure mounting plate C is seated correctly (see diagram below).
  • Page 27 Installation sequence Siting the heat pump (cont.) Removing the transport brackets Please note If transport brackets are not removed, they cause vibrations and excessive noise. Remove the transport brackets.
  • Page 28 Installation sequence Siting the heat pump (cont.)

  • Page 29: Hydraulic Connections

    Installation sequence Hydraulic connections Connecting the primary/secondary circuits Connecting the pipe sections or pipe With hose outlets, ensure that bends supplied with the connection their diaphragm grommets are set (accessories) seated correctly; seal with seal- ing tape if required (see chapter Please note "Assembly and sealing faces to Ensure hydraulic connections are...
  • Page 30 Installation sequence Hydraulic connections (cont.) Connecting the primary circuit Connecting the secondary circuit Please note The components used must be resistant to the heat transfer medium. Never use zinc-plated pipes. 1. Equip the primary circuit with an expansion vessel and safety valve (in accordance with DIN 4757).
  • Page 31 Installation sequence Hydraulic connections (cont.) 3. Thermally insulate pipes inside the Note building. ■ For underfloor heating circuits, install a temperature limiter to restrict the maximum temperature in the under- floor heating system (see chapter "Connecting a temperature limiter as a maximum temperature limiter in underfloor heating systems").

  • Page 32: Electrical Connections

    Installation sequence Hydraulic connections (cont.) Information on drinking water filter Recommendation: Install the safety According to DIN 1988-2, a drinking valve higher than the top edge of the cyl- water filter should be installed in systems inder. This protects the valve against with metal pipework.
  • Page 33 Installation sequence Electrical connections (cont.) ■ Route LV leads < 42 V and Note cables > 42 V/230 V~/400 V~ If two components are connected to the separately. same terminal, press both cores ■ Strip the insulation from the together in a single wire ferrule. cables as close to the terminals as possible, and bundle tightly to the corresponding terminals.
  • Page 34 Installation sequence Electrical connections (cont.) 400/230 V < 42 V < 4 0 / 2...
  • Page 35 Installation sequence Electrical connections (cont.) Overview of the heat pump control unit electrical connections 400 V / 50 Hz 400 V / 230 V / 50 Hz 50 Hz 230 V / 50 Hz...
  • Page 36 Installation sequence Electrical connections (cont.) A Expansion PCB on main PCB (see page 39) B Main PCB (see page 36) F3 Fuse 6.3 A (slow) C Controller and sensor PCB (see page 41) D Mains terminals (see from page 44) E Luster terminals (see page 39) F1 Fuse 6.3 A (slow) X1 Terminals for earth conductor of...
  • Page 37 Installation sequence Electrical connections (cont.) Plug sYA Terminals Function Explanation 211.2 Secondary pump ■ In systems without a heating water buf- 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 (see following chapter)
  • Page 38 Installation sequence Electrical connections (cont.) Plug sYS Terminals Function Explanation 212.2 Heating circuit pump for ■ This pump is connected in addition to heating circuit without mixer the secondary pump if a heating water (A1/HC1) buffer cylinder is installed. ■ Connect the temperature limiter to re- strict the maximum temperature for un- derfloor heating systems (if installed) in series (see the following chapter)
  • Page 39 Installation sequence Electrical connections (cont.) Heating circuit without mixer A1/ Connection Circulation pump C A to control unit ■ Without heating water buffer cylin- 211.2 Secondary pump ■ With heating water buffer cylinder 212.2 Heating circuit pump A1/ Connecting the temperature limiter, part no.
  • Page 40 Installation sequence Electrical connections (cont.) Terminals Function Explanation X3.1 Switched phase Via control unit ON/OFF switch. Note Observe the total load (1000 W) for all connected components. X3.3 Flow switch Requires floating N/O contact: X3.4 ■ Closed: Heat pump in operation ■...
  • Page 41 Installation sequence Electrical connections (cont.) Terminals Function Explanation X3.8 Pressure switch, primary Requires floating N/C contact: X3.9 circuit ■ Closed: Safety chain has continuity and/or ■ Open: Safety chain interrupted; heat pump shut down ■ Breaking capacity 230 V~, 0.15 A Connection: ■...
  • Page 42 Installation sequence Electrical connections (cont.) Plug Sensor Type KM BUS (wires interchangeable) Use the KM BUS distributor (accessories) if sev- eral devices are connected. KM BUS subscriber (examples): ■ Extension kit for one heating circuit with mixer M2/HC2 ■ Remote control for Vitotrol 200A or Vitotrol 300B (set the heating circuit assign- ment at the remote control) ■...
  • Page 43 Installation sequence Electrical connections (cont.) L1 N A Extension EA1 G Circulation pump for swimming pool B Power supply 1/N/PE 230 V/50 Hz heating (accessory) H Thermostat for swimming pool tem- C Junction box (on site) perature control (floating contact: D Fuses and contactor for circulation 230 V~, 0.1 A, accessories) pump for swimming pool heating...

  • Page 44: Connecting Power Cables

    Installation sequence Connecting power cables Isolators for non-earthed conductors Danger ■ The mains isolator (if installed) must Incorrect core allocation can simultaneously isolate from the mains result in serious injury and dam- all non-earthed conductors with a min- age to the appliance. imum contact separation of 3 mm.
  • Page 45 Installation sequence Connecting power cables (cont.) ■ In conjunction with on-site energy con- sumption (use of power generated by the PV system to meet own require- ments): Note During the power-OFF period, it is not possible to operate the compres- sor with power generated on site.
  • Page 46 Installation sequence Connecting power cables (cont.) Compressor power supply (400 V~) ■ No parameters need to be set when 400 V, 50 Hz applying economy tariffs with power- 3/PE OFF facility. The compressor is shut down during the power-OFF time. ■...
  • Page 47 Installation sequence Connecting power cables (cont.) Instantaneous heating water heater power supply 230 V~ 230V / 50 Hz ■ Max. fuse rating 16 A (see specifica- 1/N/PE tion). ■ Economy tariff and power-OFF can be applied. ■ Recommended power cable: 7 x 2.5 mm Max.
  • Page 48 Installation sequence Connecting power cables (cont.) X3.7 X3.6 X3.18/X2.1/X1.1 (400 V~) 7 (230 V~) ≈ Diagram excluding fuses and RCD. A Heat pump control unit F Backup fuse ripple control receiver B Instantaneous heating water heater G Ripple control receiver (contact C Compressor open: power-OFF enabled) Feed: TNC system...
  • Page 49 Installation sequence Connecting power cables (cont.) X3.7 X3.6 X3.18/X2.1/X1.1 5 (400 V~) (230 V~) ≈ Diagram excluding fuses and RCD A Heat pump control unit G Ripple control receiver (contact B Instantaneous heating water heater open: power-OFF enabled) with C Compressor backup fuse H Economy tariff meter D Heat pump control unit power sup-...
  • Page 50 Installation sequence Connecting power cables (cont.) Power supply in conjunction with own energy consumption Without power-OFF E1E2 D /D L1 L1 L2 L2 L3 L3 A Heat pump G Double-tariff meter (for special tariff for heat pump) B Additional consumers in the house- hold (powered by self-generated Not permissible in conjunction with electricity)
  • Page 51 Installation sequence Connecting power cables (cont.) H Bi-directional meter (for PV systems L Isolator for the domestic power sup- for own energy consumption): ply connection (distribution panel) M Distribution panel Energy taken from power supply utility and energy fed into power N Domestic distribution box supply utility K Meter with reverse block:...
  • Page 52 Installation sequence Connecting power cables (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...

  • Page 53: Connecting To Terminals X3.8/X3.9

    Installation sequence Connecting power cables (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 54: Closing The Heat Pump

    Installation sequence Closing the heat pump Please note Seal the appliance so it is sound- proof and diffusion-proof. Check tightness of internal hydraulic connections. Please note To prevent the formation of con- densate and the excessive devel- opment of noise, tightly seal the casing door.

  • Page 55: Steps - Commissioning, Inspection And 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..........56 • 2. Writing reports..............56 •...

  • Page 56: 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- Never touch the connection ment damage.
  • Page 57 Filling and venting the primary side Please note 2. Fill the primary circuit with To prevent equipment damage, Viessmann heat transfer medium fill the primary circuit before con- and vent. necting the power supply. 1. Check the pre-charge pressure of the...
  • Page 58 The system must be protected pump against frost down to –15 °C. Temperature differential between pri- Viessmann heat transfer medium is a mary circuit flow and return: 3 K to 5 K. ready-mixed ethylene glycol-based For this, it may be appropriate to set the medium, for down to –15 °C, contain-...
  • Page 59 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 1. Open any non-return valves installed on site. 2. Check the pre-charge pressure of the expansion vessel (see page 60).
  • Page 60 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 3. Fill (flush) and vent secondary cir- cuit: ■ Open air vent valve of the secon- dary circuit. ■ Slightly open quick-action air vent valve (see safety assembly on page 30) (remains open). ■...
  • Page 61 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Cleaning the DHW cylinder Danger Please note Uncontrolled escape of DHW or Pointed or sharp cleaning heat transfer medium can cause objects scalding and building damage. may damage the DHW cylinder. Only open DHW and heating water connections with a depres- Please note...
  • Page 62 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Please note A short circuit between the mag- nesium anode and internal indi- rect coil increases the protective effect of the magnesium anode and leads to corrosion damage on the DHW cylinder. Before inserting the electrical cables, measure the resistance between terminals A and B.
  • Page 63 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Replacing the magnesium anode Note Please note If the magnesium anode needs to be A short circuit between the mag- replaced, a maintenance-free impressed nesium anode and internal indi- current anode (accessory) can be used. rect coil increases the protective effect of the magnesium anode For removal of the magnesium anode,...
  • Page 64 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Switch on the ON/OFF switch on the heat pump control unit. ■ The prompt "Start commission- ing?" appears automatically on first commissioning. Note The commissioning assistant can also be started manually: To do this, press and hold when switching on the heat pump control...
  • Page 65 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 carry out Function check...
  • Page 66 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Commissioning without the commissioning assistant Enabling the service menu Service menu: 1. Press OK + å simultaneously for The service menu can be enabled from approx. 4 s any menu. 2.
  • Page 67 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) DHW circulation pump...
  • Page 68 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Pump/component Parameter Setting Vitocom 100, type GSM "System definition" Ó "1" "Vitocom 100 7017" External extension "System definition" Ó ■ "1" EA1 ■ "2" AM1 "External extension ■ "3"EA1 and AM1 7010"...
  • Page 69 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) External functions Parameter Setting External blocking of compres- "System definition" Ó "0" to "31" sor and pumps "Effect of external block- ing on pumps/compressor 701A" External blocking of the com- "System definition"...
  • Page 70 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Swimming pool water heating Parameters for swimming pool heating Setting "System definition" Ó "1" "External extension 7010" "System definition" Ó "1" "Swimming pool 7008" Ventilation Ventilation unit parameters Setting "Ventilation" Ó "1"...
  • Page 71 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" Extended menu: Enable the required functions/ "PV ctrl strategy" system components for own en- ergy consumption. "Photovoltaics"...
  • Page 72 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking the system function (e.g. actuators, temperatures, heat meter if applicable) Please note If the heat pump is exposed to temperatures below –15 °C, e.g. during storage or transport, the high limit safety cut-out of the instantaneous heating water heater may respond.

  • Page 73: Maintenance

    Troubleshooting Maintenance Overview of electrical components Type BWT (400 V~)
  • Page 74 Troubleshooting Maintenance (cont.) Compressor contactor Motor overload relay Cable trunking Optional: Phase monitor 3 rows of luster terminals Plug, secondary pump Controller and sensor PCB Plug, primary pump Programming unit Plug, compressor Main PCB Plug, 3-way diverter valve Expansion PCB on main PCB aYH Plug, safety chain Compressor power supply aCH Plug, switching module, instanta-...
  • Page 75 Troubleshooting Maintenance (cont.) Type BWT-M (230 V~)
  • Page 76 Troubleshooting Maintenance (cont.) Compressor contactor Motor overload relay Cable trunking Run capacitor 3 rows of luster terminals Start capacitor Controller and sensor PCB Plug, secondary pump Programming unit Plug, primary pump Main PCB Plug, compressor Expansion PCB on main PCB Plug, 3-way diverter valve Compressor power supply aYH Plug, safety chain...
  • Page 77 Troubleshooting Maintenance (cont.) Opening programming unit...
  • Page 78 Troubleshooting Maintenance (cont.) Removing cover from programming unit, if necessary...
  • Page 79 Troubleshooting Maintenance (cont.) Overview of internal components 116.1 116.2 116.5 116.3 116.6 116.4...
  • Page 80 Troubleshooting Maintenance (cont.) Flow temperature sensor, secon- Primary circuit air vent valve dary circuit Condenser drain valve Cylinder temperature sensor High pressure Schrader valve Primary circuit flow temperature Primary pump drain valve sensor (heat pump brine inlet) Drain valve on the secondary side Return temperature sensor, sec- Instantaneous heating water ondary circuit...
  • Page 81 Troubleshooting Maintenance (cont.) DHW cylinder drain & fill valve positions A Closed C Open to drain or fill the cylinder B Open to drain the internal DHW line Draining heat pump on the secondary side 1. Close the on-site boiler drain & fill 2.
  • Page 82 A1/HC1 or separate cooling circuit SKK) (F14) ■ Room temperature sensors ■ Flow temperature sensor, secondary circuit (F8) Pt 500A ■ Return temperature sensor, secondary circuit (F9) Viessmann NTC 10 kΩ (blue marking) Further sensors Outside temperature sensor 10 30 50 70 90 110 -20 -10 10 20 30 Temperature in °C...
  • Page 83 Troubleshooting Maintenance (cont.) Viessmann NTC 20 kΩ (orange marking) Temperature in °C Viessmann Pt500A (green marking) 140 180 Temperature in °C Checking the fuses For fuse locations, see from page 35. Danger Removing the fuse does not ■ Fuse F1 is located on the mains ter- switch the power circuit to zero minal of the heat pump control unit.
  • Page 84 Troubleshooting Maintenance (cont.) Appliance is too noisy Possible causes: ■ Transport bracket not removed: See page 27. ■ Casing door not tightly sealed: See page 26. ■ Secondary circuit return line A touches primary circuit return line B, another line or the compressor.

  • Page 85: Parts Lists Type Bwt (400 V~)

    Parts lists type BWT (400 V~) Parts lists type BWT (400 V~) Ordering individual parts The following information is required: Standard parts are available from your ■ Serial no. (see type plate A) local dealer. ■ Assembly (from this parts list) ■...

  • Page 86: Overview Of The Assemblies

    Parts lists type BWT (400 V~) Overview of the assemblies A Type plate C Electrical equipment assembly B Casing assembly D Heat pump module assembly...

  • Page 87: Parts Not Shown

    0001 Front panel, top, with logo 0006 Top panel, back 0002 Front panel, bottom 0007 Support, heat pump control unit 0003 Side panel, left 0008 Viessmann logo and Vitocal logo 0004 Side panel, right 0009 Screws (set) 0005 Top panel, front 0010 Fixings (set)
  • Page 88 Parts lists type BWT (400 V~) Casing (cont.) 0003 0006 0005 0001 0008 0004 0007 0009 0002 0010...

  • Page 89: Electrical Equipment

    Parts lists type BWT (400 V~) Electrical equipment Type BWT 221.A06 0001 Programming unit 0027 Motor overload relay 0002 Controller and sensor PCB with 0029 Plug kK (compressor) cover (CU401) 0030 Mains terminals 0003 Base support, controller and sen- 0032 Switching module for instantane- sor PCB ous heating water heater 0004 Main PCB with cover (MB761)
  • Page 90 Parts lists type BWT (400 V~) Electrical equipment (cont.) 0014 0016 0015 0001 0010 0017 0012 0014 0015 0016 0040 0017 0011 0006 0007 0013 0039 0038 0004 0005 0002 0041 0003 0042 0035 0036 0019 0022 0035 0018 0032 0036 0021 0029...
  • Page 91 Parts lists type BWT (400 V~) Electrical equipment (cont.) Type BWT 221.A08, A10 0001 Programming unit 0025 Compressor contactor 0002 Controller and sensor PCB with 0027 Motor overload relay cover (CU401) 0029 Plug kK (compressor) 0003 Base support, controller and sen- 0030 Mains terminals sor PCB 0032 Switching module for instantane-...
  • Page 92 Parts lists type BWT (400 V~) Electrical equipment (cont.) 0014 0016 0015 0012 0001 0017 0014 0010 0015 0016 0040 0017 0011 0007 0006 0013 0039 0038 0004 0005 0002 0041 0003 0042 0035 0036 0019 0030 0022 0018 0035 0036 0032 0021...

  • Page 93: Heat Pump Module

    Parts lists type BWT (400 V~) Heat pump module 0001 Compressor 0025 Primary return hose 0002 Evaporator 0026 Primary flow line 0003 Condenser 0027 Primary flow hose 0004 Thermal expansion valve TEV 0028 Secondary return hose 0005 Filter drier DML 0029 Line, filter drier –...
  • Page 94 Parts lists type BWT (400 V~) Heat pump module (cont.) 0045 0028 0024 0003 0039 0039 0016 0039 0034 0039 0006 0032 0023 0016 0014 0035 0012 0025 0034 0038 0011 0036 0043 0014 0013 0017 0042 0010 0005 0016 0043 0018 0026...

  • Page 95: Hydraulics

    Parts lists type BWT (400 V~) Hydraulics 0001 Back panel, lower casing 0022 Pipe bend, heating water return 0002 Bottom panel 0023 Line, instantaneous heating water 0003 Anti-vibration mount heater–secondary pump 0004 Top panel, lower casing 0024 Pipe bend, DHW cylinder flow 0005 Angle profile, lower casing, left 0025 Connection line, heating water 0006 Angle profile, lower casing, right...
  • Page 96 Parts lists type BWT (400 V~) Hydraulics (cont.) 0004 0040 0034 0036 0025 0025 0034 0036 0036 0034 0034 0017 0009 0034 0037 0037 0038 0034 0037 0033 0014 0035 0027 0036 0036 0036 0034 0037 0037 0034 0039 0022 0011 0034 0037...

  • Page 97: Cylinder

    Parts lists type BWT (400 V~) Cylinder 0001 DHW cylinder with internal indi- 0016 Sleeve rect coil 170 litres 0017 Sensor well 0002 Back panel, casing top 0018 Air vent valve G ⅜ 0003 Retaining bracket for connection 0019 Spring clip ring 732 x 1.5 mm hoses 0020 Clip for threaded pipe D 21-23, 0004 Retaining bracket, cylinder...
  • Page 98 Parts lists type BWT (400 V~) Cylinder (cont.) 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 0029 0028 0011 0009...

  • Page 99: Parts Lists Type Bwt-M (230 V~)

    Parts lists type BWT-M (230 V~) Parts lists type BWT-M (230 V~) Ordering individual parts The following information is required: Standard parts are available from your ■ Serial no. (see type plate A) local dealer. ■ Assembly (from this parts list) ■...

  • Page 100: Overview Of The Assemblies

    Parts lists type BWT-M (230 V~) Overview of the assemblies A Type plate D Heat pump module assembly B Casing assembly E Hydraulic assembly C Electrical equipment assembly...

  • Page 101: Parts Not Shown

    0001 Front panel, top, with logo 0006 Top panel, back 0002 Front panel, bottom 0007 Support, heat pump control unit 0003 Side panel, left 0008 Viessmann logo and Vitocal logo 0004 Side panel, right 0009 Screws (set) 0005 Top panel, front 0010 Fixings (set)
  • Page 102 Parts lists type BWT-M (230 V~) Casing (cont.) 0003 0006 0005 0001 0008 0004 0007 0009 0002 0010...

  • Page 103: Electrical Equipment

    Parts lists type BWT-M (230 V~) Electrical equipment 0001 Programming unit 0027 Motor overload relay 0002 Controller and sensor PCB with 0029 Plug kK (compressor) cover (CU401) 0030 Mains terminals 0003 Base support, controller and sen- 0032 Switching module for instantane- sor PCB ous heating water heater 0004 Main PCB with cover (MB761)
  • Page 104 Parts lists type BWT-M (230 V~) Electrical equipment (cont.) 0014 0016 0015 0012 0001 0017 0014 0010 0015 0016 0017 0040 0011 0007 0013 0006 0038 0039 0004 0005 0041 0002 0003 0042 0035 0029 0019 0036 0030 0018 0032 0022 0035 0036...

  • Page 105: Heat Pump Module

    Parts lists type BWT-M (230 V~) Heat pump module 0001 Compressor 0025 Primary return hose 0002 Evaporator 0026 Primary flow line 0003 Condenser 0027 Primary flow hose 0004 Thermal expansion valve TEV 0028 Secondary return hose 0005 Filter drier DML 0029 Line, filter drier –...
  • Page 106 Parts lists type BWT-M (230 V~) Heat pump module (cont.) 0045 0028 0024 0003 0039 0039 0016 0039 0034 0039 0006 0032 0023 0016 0014 0035 0012 0025 0034 0038 0011 0036 0043 0014 0013 0017 0042 0010 0005 0016 0043 0018 0026...

  • Page 107: Hydraulics

    Parts lists type BWT-M (230 V~) Hydraulics 0001 Back panel, lower casing 0022 Pipe bend, heating water return 0002 Bottom panel 0023 Line, instantaneous heating water 0003 Anti-vibration mount heater–secondary pump 0004 Top panel, lower casing 0024 Pipe bend, DHW cylinder flow 0005 Angle profile, lower casing, left 0025 Connection line, heating water 0006 Angle profile, lower casing, right...
  • Page 108 Parts lists type BWT-M (230 V~) Hydraulics (cont.) 0004 0040 0034 0036 0025 0025 0034 0036 0036 0034 0034 0017 0009 0034 0037 0037 0038 0034 0037 0033 0014 0035 0027 0036 0036 0036 0034 0037 0037 0034 0039 0022 0011 0034 0037...

  • Page 109: Cylinder

    Parts lists type BWT-M (230 V~) Cylinder 0001 DHW cylinder with internal indi- 0016 Sleeve rect coil 170 litres 0017 Sensor well 0002 Back panel, casing top 0018 Air vent valve G ⅜ 0003 Retaining bracket for connection 0019 Spring clip ring 732 x 1.5 mm hoses 0020 Clip for threaded pipe D 21-23, 0004 Retaining bracket, cylinder...
  • Page 110 Parts lists type BWT-M (230 V~) Cylinder (cont.) 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 0029 0028 0011 0009...

  • Page 111: Fitting Set

    Parts lists type BWT-M (230 V~) Fitting set 0001 Flange for magnesium anode 0004 T&P valve 0002 Magnesium anode 0005 Extension R½ x 30 0003 Flange gasket 0006 Flange insulation...
  • Page 112 Parts lists type BWT-M (230 V~) Fitting set (cont.) 0004 0005 0006 0001 0002 0003 0003 0002...

  • Page 113: Hydraulic Parameter Report

    Commissioning/service reports Hydraulic parameter report Setting and test values Set value Commis- sioning Frost protection (brine medium) °C –15 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 114 Commissioning/service reports Control parameters report (cont.) System definition Parameter Code Delivered condi- Commis- tion sioning "System scheme" (see chapter "Over- 7000 view of possible system schemes") "Temperature differential for calculat- 7003 40 (≙ 4 K) ing the heating limit" "Temperature differential for calculat- 7004 40 (≙...
  • Page 115 Commissioning/service reports Control parameters report (cont.) Parameter Code Delivered condi- Commis- tion sioning "Set DHW temperature" 6000 500 (≙ 50 °C) "Min. DHW temperature" 6005 100 (≙ 10 °C) "Max. DHW temperature" 6006 600 (≙ 60 °C) "Hysteresis DHW temperature heat 6007 50 (≙...
  • Page 116 Commissioning/service reports Control parameters report (cont.) Internal hydraulics Parameter Code Delivered condi- Commis- tion sioning "Heat pump for drying a building" 7300 "Time program for screed drying" 7303 "Flow temperature for external de- 730C 500 (≙ 50 °C) mand" "Enable 3-way diverter valve heating/ 730D Do not adjust.
  • Page 117 Commissioning/service reports Control parameters report (cont.) Heating circuit 2 Parameter Code Delivered condi- Commis- tion sioning "Standard room temperature" 3000 200 (≙ 20 °C) "Reduced room temperature" 3001 160 (≙ 16 °C) "Remote control" 3003 "Heating curve level" 3006 0 (≙ 0 K) "Heating curve slope"...
  • Page 118 Commissioning/service reports Control parameters report (cont.) Ventilation Parameter Code Delivered condi- Commis- tion sioning "Vitovent enable" 7D00 "Enable preheater bank electric" 7D01 "Enable reheater bank hydraulic" 7D02 "Enable humidity sensor" 7D05 "Enable CO2 sensor" 7D06 "Extract air temperature with standard 7D08 200 (≙...
  • Page 119 Commissioning/service reports Control parameters report (cont.) Parameter Code Delivered condi- Commis- tion sioning "Enable own energy consumption for 7E13 heating" "Raise set DHW cylinder temperature 7E21 0 (≙ 0 K) PV" "Raise set heating water buffer cylin- 7E22 0 (≙ 0 K) der temp PV"...

  • Page 120: Specification

    Specification Specification 400 V appliances Type BWT 221.A06 221.A08 221.A10 Heating output data at 5 K spread (to EN 14511, B0/W35) Rated heating output 10.0 Cooling capacity Power consumption 1.40 1.87 2.35 Coefficient of performance ε (COP) Heating output data at 10 K spread (to EN 255, B0/W35) Rated heating output 10.4...
  • Page 121 Specification Specification (cont.) Type BWT 221.A06 221.A08 221.A10 Electrical values, heat pump Rated voltage, compressor 3/PE 400 V/50 Hz Rated current, compressor Starting current, compressor 25.0 14.0 20.0 Starting current, compressor (with 26.0 35.0 48.0 stalled armature) Compressor fuse 1 x C16A 1 x B16A 1 x B16A 3-pole...
  • Page 122 Specification Specification (cont.) Type BWT 221.A06 221.A08 221.A10 Dimensions ■ Total length ■ Total width ■ Total height 1829 1829 1829 Total weight Permiss. operating pressure Primary circuit (brine) Secondary circuit, heating water Secondary circuit, DHW 10.0 10.0 10.0 Connections Flow/return, primary circuit Cu 28 x 1 Cu 28 x 1...
  • Page 123 Specification Specification (cont.) Type BWT-M 221.A06 221.A08 221.A10 Primary circuit (brine) Capacity Minimum flow rate at 5 K spread (al- 1120 1450 ways maintain) Maximum external pressure drop mbar (RFH) at minimum flow rate Max. flow temperature (brine inlet) °C Min.
  • Page 124 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 compres- Permiss. operating pressure ■ High pressure side ■ Low pressure side Integral cylinder Capacity Continuous output for DHW heating from 10 to 60 °C Performance factor N to DIN 4708...

  • Page 125: 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 126: Declaration Of Conformity

    Declaration of conformity We, Viessmann Werke GmbH&Co KG, D-35107 Allendorf, declare as sole respon- sible body that the product Vitocal 222-G, type BWT and BWT-M, incl. the heat pump control unit Vitotronic 200, type WO1C, complies with the following stand-...

  • Page 127: Keyword Index

    Keyword index Keyword index Connections Adjustable feet........16 ■ Hydraulic.........29 Aligning the appliance......16 ■ Preparing..........8 Ambient temperatures......16 ■ Primary circuit.........30 Appliance fuse........83 Connection set........29 Assembly.......26, 85, 99 Connections on the DHW side...31 ■ Electrical equipment....89, 103 Connection values Assembly, casing.......87, 101 ■...
  • Page 128 Keyword index Keyword index (cont.) Heat pump Economy tariff........45 ■ Closing..........54 Economy tariff meter....48, 49 ■ Opening..........18 Electrical connections ■ Siting..........16 ■ Cables, inserting......33 Heat pump module ■ Circulation pumps......39 ■ Installing.........26 ■ Controller and sensor PCB.....41 ■ Removing........24 ■ Expansion PCB......39 High limit safety cut-out, resetting..72 ■...
  • Page 129 Keyword index Keyword index (cont.) Minimum flow rate......31 Photovoltaic........71 Minimum room volume.......16 Pipe separator........31 Mixer extension kit......39 Power cable........8, 45 Power circuits........44 Power-OFF Non-return valve........31 ■ Floating contact connection....40 ■ Power supply with load disconnec- tion..........48 Off signal..........48 ■ Power supply without on-site load dis- ON/OFF switch........64 connection........47 On-site connections......7...
  • Page 130 Keyword index Keyword index (cont.) Removing magnesium anode....63 System pressure, checking....60 Removing programmining unit cover. 78 System schemes Repair work........56 ■ Overview...........9 Reports..........113 ■ Parameter settings......15 ■ Control parameters.......113 ■ System example......10 ■ Writing commissioning reports..56 System user, instructing.....72 Resistance curves of sensors....81 Ripple control receiver....48, 49 Room height........17 Temperature differential, primary cir-...
  • Page 132 Applicability Serial No.: 7501983 7501984 7501985 7501986 7501987 7501988 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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