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Viessmann VITOCAL 222-G Series Installation And Service Instructions For Contractors

Compact heat pump with integral dhw cylinder, 230 v~
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VIESMANN
Installation and service instructions
for contractors
Vitocal 222-G
Type BWT-M 221.B06 to B10
Compact heat pump with integral DHW cylinder, 230 V~
VITOCAL 222-G
Please keep safe.
5836741 GB
4/2019

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Summary of Contents for Viessmann VITOCAL 222-G Series

  • Page 1 VIESMANN Installation and service instructions for contractors Vitocal 222-G Type BWT-M 221.B06 to B10 Compact heat pump with integral DHW cylinder, 230 V~ VITOCAL 222-G Please keep safe. 5836741 GB 4/2019...
  • Page 2 ■ OFF the appliance and let it cool down. lidate our warranty. ■ Never touch hot surfaces on the appliance, fit- For replacements, use only original spare parts tings or pipework. supplied or approved by Viessmann.
  • Page 3 Safety instructions Safety instructions (cont.) Safety instructions for operating the system What to do if water escapes from the appliance Danger If water escapes from the appliance there is a Danger risk of scalding. If water escapes from the appliance there is a Never touch hot heating water.

  • Page 4: Table Of Contents

    Draining heat pump on the secondary side ........... 67 Checking the temperature sensors ............67 Viessmann NTC 10 k (blue marking) ..........68 Ω ■ Viessmann Pt500A (green marking) ........... 69 ■ NTC 10 k (no marking) ..............70 ■ Ω...
  • Page 5 Index Index (cont.) 7. Specification ........................ 82 8. Appendix Commissioning order ................85 9. Declaration of Conformity Declaration of conformity ............... 86 10. Keyword index ........................ 87...

  • Page 6: Disposal Of Packaging

    Information Disposal of packaging Please dispose of packaging waste in line with statu- tory regulations. Symbols The steps in connection with commissioning, inspec- Symbol Meaning tion and maintenance are found in the "Commission- Reference to other document containing ing, inspection and maintenance" section and identified further information as follows: Step in a diagram:...

  • Page 7: Product Information

    The integral 3-way diverter valve for "cen- tral heating/DHW heating" changes over between cen- tral heating and DHW heating. System examples Available system examples: See www.viessmann- schemes.com. Spare parts lists Information about spare parts can be found on the...

  • Page 8: Requirements Concerning On-Site Connections

    Preparing for installation Requirements concerning on-site connections Primary circuit connections to the right ABCDE 230 V∼ < 42 V 400 V∼ 230 V∼ < 42 V 400 V∼ 230 V∼ < 42 V 400 V∼ Fig. 1 Cold water Secondary circuit return (heating water) DHW circulation Primary circuit return (heat pump brine outlet) Primary circuit flow (heat pump brine inlet)
  • Page 9 Preparing for installation Requirements concerning on-site connections (cont.) Primary circuit connections to the left 230 V∼ < 42 V < 42 V 230 V∼ 400 V∼ 400 V∼ ABCDE 230 V∼ < 42 V 400 V∼ Fig. 2 Cold water Secondary circuit return (heating water) DHW circulation Primary circuit return (heat pump brine outlet)

  • Page 10: Siting And Transport Requirements

    Preparing for installation Siting and transport requirements Transport Please note Please note Impacts, compression and tensile loads can Tilting the compressor at a steep angle inside cause damage to the outside panels of the the heat pump can result in appliance damage. appliance.
  • Page 11 Preparing for installation Siting and transport requirements (cont.) Minimum room height Pressure points Ø d Fig. 5 Partition joint with edge insulation strip as part of the floor construction 484 mm 480 mm 657 mm Fig. 4 64 mm Compact heat pump Total weight with full DHW cylinder Finished floor level or top edge of platform for unfinished floors...

  • Page 12: Siting The Heat Pump

    Installation sequence Siting the heat pump To prevent the transmission of structure-borne noise, never site the appliance above ceilings with wooden joists, e.g. in the attic. Removing the front panels Fig. 6...

  • Page 13: Removing The Heat Pump Module

    Installation sequence Siting the heat pump (cont.) Removing the heat pump module Fig. 7...
  • Page 14 Installation sequence Siting the heat pump (cont.) Fig. 8...
  • Page 15 Installation sequence Siting the heat pump (cont.) Fig. 9 Fig. 10...

  • Page 16: Installing The Heat Pump Module

    Installation sequence Siting the heat pump (cont.) Fig. 11 Installing the heat pump module Refit the heat pump module in reverse order to the removal sequence: See individual steps from page 13.

  • Page 17: Levelling The Heat Pump

    Installation sequence Siting the heat pump (cont.) Levelling the heat pump Fig. 12 Hydraulic connections Connecting the primary/secondary circuits Fitting the primary/secondary circuit connection set (standard delivery) Note We recommend fitting shut-off devices to the connec- tion set on site. This will allow the primary and secon- dary circuit to be shut off for maintenance work.
  • Page 18 Installation sequence Hydraulic connections (cont.) Primary circuit connections to the right Primary circuit connections to the left Fig. 13 Fig. 14 Pos. Meaning Connection Pos. Meaning Connection Secondary circuit return Cu 28 x 1.5 mm Secondary circuit return Cu 28 x 1.5 mm (heating water) (heating water) Secondary circuit flow...

  • Page 19: Connecting The Cooling Circuit

    Connect on-site lines so that they are free of load and torque stress. 4. Insulate pipes inside the building to prevent heat and vapour diffusion. 5. Fill the primary circuit with Viessmann heat transfer medium and vent. Note Ensure frost protection down to 19 °C.

  • Page 20: Connections On The Dhw Side

    Recommendation: Install safety valve above top edge Viessmann also recommends the installation of a of cylinder. This means the DHW cylinder will not need drinking water filter when using plastic pipes to to be drained when working on the safety valve.

  • Page 21: Electrical Connection

    Installation sequence Hydraulic connections (cont.) Preparing the connections on the DHW side Connecting the DHW circulation pipe DHW circulation pump outside the appliance Install the DHW circulation connection set (supplied) inside the appliance. Installation instructions "DHW circulation con- nection set" (supplied) DHW circulation pump inside the appliance Install the DHW circulation pump connection set (accessories) inside the appliance.
  • Page 22 Installation sequence Electrical connection (cont.) Required cable lengths in the heat pump plus wall clearance Cable lengths ■ Required cable length inside the appliance plus dis- tance to wall: 1.8 m Height of wall outlet: ■ 1900 mm: See "Technical guide for heat pumps". Recommended power cables Power supply Cable...

  • Page 23: Routing The Cables To The Wiring Chamber

    Installation sequence Electrical connection (cont.) Routing the cables to the wiring chamber 230 V∼ < 42 V ∼ ∼ ∼ < 4 Fig. 17...

  • Page 24: Connecting The Vitoconnect (Accessories)

    Installation sequence Electrical connection (cont.) Connecting the Vitoconnect (accessories) Fig. 18 Fig. 20 Fig. 21 Fig. 19...
  • Page 25 Installation sequence Electrical connection (cont.) Fig. 22 Fig. 23...

  • Page 26: Overview Of Electrical Connections

    Installation sequence Electrical connection (cont.) Overview of electrical connections Fig. 24 Mains terminals for compressor and instantaneous heating water heater: See page 36. Luster terminals (mains terminals for heat pump control unit, signal and safety connections): See page 29. F1 Fuse 6.3 A (slow) X1 Terminals for earth conductors of all associ- ated system components X2 Terminals for neutral conductors of all associ-...
  • Page 27 Installation sequence Electrical connection (cont.) Plug Terminals Function Explanation 211.5 Cooling control via NC-Box Connection values NC function (natural cooling) Output: 10 W ■ Voltage: 230 V~ ■ Max. switching current: 4(2) A ■ Plug Terminals Function Explanation 212.2 Heating circuit pump for heating cir- This pump is connected in addition to the secondary ■...

  • Page 28: Expansion Pcb On Main Pcb (230 V~ Components)

    Installation sequence Electrical connection (cont.) Plug Terminals Function Explanation 216.1 External hook-up, heating/cooling cir- 230 V~ digital input: cuits: 230 V~: Central heating demand for heating circuit ■ Central heating demand, heating cir- A1/HC1 active cuit A1/HC1 0 V: No demand ■...

  • Page 29: Luster Terminals (Message And Safety Connections)

    Installation sequence Electrical connection (cont.) Central fault message 223.1 230V~, 0.5 A 223.2 Fig. 25 Terminals on extension PCB Plug Terminals Function Explanation 225.1 Heating circuit pump of the heating Connect a temperature limiter in series to restrict the circuit with mixer M2/HC2 maximum temperature of underfloor heating circuit (if installed).
  • Page 30 Installation sequence Electrical connection (cont.) Terminals Function Explanation X3.1 Switched phase Via control unit ON/OFF switch Note Observe the total load 1000 W of all connected compo- nents. X3.2 In systems without heating wa- Floating contact (N/O contact) required: ■ X3.14 ter buffer cylinder: Temperature Closed: Blocking enabled...

  • Page 31: Controller And Sensor Pcb (Low Voltage Connections)

    Installation sequence Electrical connection (cont.) Terminals Function Explanation X3.8 X3.9 Pressure switch, primary circuit Requires floating contact: and/or Closed: Safety chain has continuity ■ Open: Safety chain interrupted; heat pump shut down ■ Breaking capacity 230 V~, 0.15 A ■ Frost stat Connection: Connected in series if 2 safety components are instal-...

  • Page 32: Ture Of Underfloor Heating Circuit

    Installation sequence Electrical connection (cont.) Plug Sensor/component Type Jumper for Modbus terminator — Terminator active (delivered condition) Terminator not active Modbus (do not interchange the wires), e.g. Vitovent 300-F — Note If several appliances are to be connected, use the Modbus distributor (acces- sories): See "Modbus distributor"...
  • Page 33 Installation sequence Electrical connection (cont.) Converting temperature limiter part no. 7151728, 7151729 into a N/O contact Fig. 27...
  • Page 34 Installation sequence Electrical connection (cont.) Fig. 28 Colour coding to IEC 60757: Assembling the temperature limiter: Steps 1 to 3 in Brown reverse order Black GNYE Green/yellow System with heating water buffer cylinder If the temperature limiter installed to restrict the maxi- Please note mum temperature of underfloor heating circuit If the temperature limiter installed to restrict the...

  • Page 35: Swimming Pool Heating

    Installation sequence Electrical connection (cont.) Connecting the temperature limiter, part no. General connection of a temperature limiter 7151728, 7151729 to the mixer extension kit X2.N sÖ sÖ Fig. 29 Fig. 31 Connection 212.2 on main PCB Connection 225.1 on expansion PCB Plug sÖ...

  • Page 36: Power Supply

    Installation sequence Electrical connection (cont.) [{{] 0-10V L1 N Fig. 32 EA1 extension Circulation pump for swimming pool heating Power supply 1/N/PE 230 V/50 Hz (accessories) Junction box (on site) Temperature controller for swimming pool temper- ature control (floating contact: 230 V~, 0.1 A, Fuses and contactor for circulation pump for swim- ming pool heating (accessories) accessories)

  • Page 37: Heat Pump Control Unit Power Supply 230 V

    Installation sequence Power supply (cont.) In negotiations with your power supply utility, differ- When using power generated on site (use of power ■ ■ ent supply tariffs for the main power circuits may be generated by the PV system to meet own require- offered.

  • Page 38: Instantaneous Heating Water Heater Power Supply 230 V

    Installation sequence Power supply (cont.) Instantaneous heating water heater power supply 230 V~ Please note Economy tariff and power-OFF can be used ■ Operating the instantaneous heating water No parameters need to be set when using economy ■ heater without heating water damages the indi- tariff with power-OFF.

  • Page 39: Power Supply With Power-Off: With On-Site Load Disconnection

    Installation sequence Power supply (cont.) Power supply with power-OFF: With on-site load disconnection The power-OFF signal is connected to the on-site con- X3.7 tactor of the economy tariff power supply and to the X3.6 heat pump control unit. The compressor and instanta- neous heating water heater are "forced"...

  • Page 40: 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. 38 Heat pump Bi-directional meter (for PV systems to consume Additional consumers (of power generated on site) power on site): in the household Energy taken from power supply utility and energy...
  • Page 41 Installation sequence Power supply (cont.) Connection to EA1 extension Condition: "Enable Smart Grid 7E80" must be at "1". [{{] 0-10V Fig. 39 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...

  • Page 42: Make Connections At Terminals X3.8/X3.9

    Installation sequence Make connections at terminals X3.8/X3.9 After connecting the power supply, one of the follow- ing components must be connected at terminals X3.8 and X3.9: ■ Primary circuit pressure switch and/or frost stat jumper supplied ■ Closing the heat pump Please note Danger Leaking hydraulic connections lead to appliance...

  • Page 43: 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..................... 44 • 2. Writing reports........................44 • • • 3. Checking the refrigerant circuit for leaks................ 44 •...
  • Page 44 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 45 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 46 Commissioning, inspection, maintenance Filling and venting the secondary side Unsuitable fill and top-up water increases the level of deposits and corrosion. This can lead to system dam- age. Hard water can also cause damage to the instantane- ous heating water heater in particular. Observe VDI 2035 regarding quality and amount of heating water, including fill and top-up water.
  • Page 47 Commissioning, inspection, maintenance Filling and venting the secondary side (cont.) 6. To vent the indirect coil in the DHW cylinder, move Please note the lever of 3-way diverter valve "Heating/DHW To prevent equipment damage, check the flow heating" into its centre position. and return connections of the heat pump secon- dary circuit for leaks.
  • Page 48 Commissioning, inspection, maintenance Testing the anode connection 3. Remove thermal insulation 4. Check that earth cable is connected to protec- tive magnesium anode 5. Insert thermal insulation Fig. 44...
  • Page 49 Commissioning, inspection, maintenance Measuring the anode earth current with an anode tester 3. Remove thermal insulation 4. Remove earth cable from protective magne- sium anode 5. Connect the tester (measuring range up to 5 mA) in series across tab of protective magnesium anode and earth cable Anode earth Protective magnesium anode...
  • Page 50 Commissioning, inspection, maintenance Draining the appliance on the DHW side 1. Connect the hose to the drain & fill valve. Route the hose into a suitable container or drain outlet. Note Ensure adequate ventilation in the DHW pipework. 2. Turn drain & fill valve from lever position lever position as required.
  • Page 51 Commissioning, inspection, maintenance Cleaning the DHW cylinder (cont.) 3. To prevent contaminants entering the pipework, 6. Flush the DHW cylinder thoroughly after cleaning. separate the DHW cylinder from the pipework. 7. Fit the protective magnesium anode. 4. Remove loose deposits with a pressure cleaner. Please note Please note A short circuit between the protective mag-...
  • Page 52 Commissioning, inspection, maintenance Commissioning the system (cont.) Please note Air bubbles in the secondary circuit can destroy the instantaneous heating water heater. Completely fill and vent the heating system before commissioning the heat pump. Commissioning with the commissioning assistant The commissioning assistant automatically guides you Switch ON the ON/OFF switch on the control unit.
  • Page 53 Commissioning, inspection, maintenance Commissioning the system (cont.) Select language Date/time Time Date setting setting setting Commissioning start? Check Secondary circuit "Secondary circuit filled" filled? Instantaneous heating Instantaneous heating water heater enable water heater blocked Code Parameter group Parameter level 1 select setting Temperature...
  • Page 54 — M3/HC3 — — — — — — — — Separate cooling circuit SKK — Vitofriocal ice store system Energy meter 3-phase Ventilation unit X Component is selected. For detailed information on system examples: See Component may be added. www.viessmann-schemes.com.
  • Page 55 Commissioning, inspection, maintenance Commissioning the system (cont.) Parameters for circulation pumps and other components Heating circuit pump Parameter Setting "System definition" Ó "System scheme 7000" With heating circuit HC1 without mix- ■ With heating circuit HC2 with mixer ■ With heating circuit HC3 with mixer ■...
  • Page 56 Commissioning, inspection, maintenance Commissioning the system (cont.) Parameters for external functions External demand Parameter Setting "Internal hydraulics" if necessary Ó "Flow temperature external demand 730C" Set flow temperature for external de- mand External starting of the compressor; mixer in control mode or OPEN Parameter Setting "System definition"...
  • Page 57 Commissioning, inspection, maintenance Commissioning the system (cont.) Cooling function parameters Parameter Setting "Cooling" Ó "Cooling function 7100" "0" No cooling "1" Natural cooling with NC-Box with- out mixer (accessories) "2" Natural cooling with NC-Box with mixer (accessories) "3" Never adjust. "Cooling circuit 7101"...
  • Page 58 Commissioning, inspection, maintenance Commissioning the system (cont.) Enable instantaneous heating water heater for DHW heating Parameter Setting "DHW" Ó "Enable electric heaters for DHW heating 6015" "1" Parameters for swimming pool water heating Parameter Setting "System definition" Ó "External extension 7010" "1"...
  • Page 59 Commissioning, inspection, maintenance Commissioning the system (cont.) Further enabling for Vitovent 200-C if necessary Parameter Setting "Ventilation" Ó "Enable preheater bank electric 7D01" "0" Defrosting without preheating coil ("Strategy, passive frost pro- tection 7D2C") "1" Frost protection with preheating coil; defrosting via bypass "2"...
  • Page 60 Commissioning, inspection, maintenance Commissioning the system (cont.) Adjust values for Vitovent 200-W/300-C/300-W if necessary Parameter Setting "Ventilation" Ó "Set room temperature C108" Max. 4 K higher or lower than "Stand- ard room temperature 2000" (adjust- ≙ ment value: 1 0.1 °C) "Background ventilation C109"...
  • Page 61 Commissioning, inspection, maintenance Commissioning the system (cont.) Parameters for utilisation of power generated on site Parameter Setting "Photovoltaics" Ó "Enable own energy consumption PV 7E00" "1" ≙ "Threshold for electrical power 7E04" "0" to "300" ( 0 to 30 kW) Enable required functions for utilisation of power generated on site Parameter Setting...
  • Page 62 Commissioning, inspection, maintenance Checking the system function Displaying the system overview The system overview displays the status of the heat 2. "Diagnosis" pump and system components as well as the tempera- tures. 3. "System overview" Service menu: to toggle between "System overview, generation side"...
  • Page 63 Commissioning, inspection, maintenance Closing the heat pump Please note Danger Leaking hydraulic connections lead to appliance The absence of system component earthing can damage. lead to serious injury from electrical current and ■ Check the internal and on-site hydraulic con- component damage in the event of an electrical nections for leaks.

  • Page 64: Overview Of Electrical Components

    Terminals for full wave soft starter Switching module for instantaneous heating water heater Luster terminals: Connections N and Expansion PCB (SA 135) on main PCB Main PCB (MB 761) Viessmann Optolink interface Mains terminals for compressor and instantaneous heating water heater Fig. 51...

  • Page 65: Opening The Programming Unit

    Maintenance Opening the programming unit Remove the cover from the programming unit if neces- sary Fig. 53 Fig. 52...

  • Page 66: Overview Of Internal Components

    Maintenance Overview of internal components Fig. 54 Vent valve, secondary circuit 3-way diverter valve "central heating/DHW heat- Drain & fill valve for DHW cylinder ing" Vent valve, secondary circuit Instantaneous heating water heater Primary circuit air vent valves Compressor Condenser air vent valve, secondary side Secondary pump Condenser Secondary circuit drain &...

  • Page 67: Draining Heat Pump On The Secondary Side

    Maintenance Overview of internal components (cont.) High limit safety cut-out, instantaneous heating F6 Cylinder temperature sensor (Viessmann water heater NTC 10 k Ω Primary circuit drain & fill valve T1 Secondary circuit flow temperature sensor Electronic expansion valve (NTC 10 k Ω...
  • Page 68 Maintenance Checking the temperature sensors (cont.) Viessmann NTC 10 k (blue marking) Ω / °C R / k / °C R / k / °C R / k / °C R / k / °C R / k / °C R / k ϑ...

  • Page 69: Viessmann Pt500A (Green Marking)

    Maintenance Checking the temperature sensors (cont.) Viessmann Pt500A (green marking) / °C / °C R / / °C R / / °C R / / °C R / / °C R / ϑ Ω ϑ Ω ϑ Ω ϑ Ω...

  • Page 70: Checking The Fuses

    Maintenance Checking the temperature sensors (cont.) NTC 10 k (no marking) Ω / °C R / k / °C R / k / °C R / k / °C R / k / °C R / k / °C R / k ϑ...

  • Page 71: Appliance Is Too Noisy

    Maintenance Checking the fuses (cont.) 2. Opening the wiring chamber. Danger Removing the fuse does not switch the power 3. Check fuses. Replace if necessary. circuit to zero volt. Contact with 'live' compo- nents can lead to serious injury from electric cur- Danger rent.

  • Page 72: 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 73 Commissioning/service reports Control parameter report (cont.) Parameter Code Delivered condition Commission- Maintenance/ service ≙ Temperature range input 0...10 V, cooling 700E 500 ( 50 °C) mode External extension 7010 System components for external change- 7011 over Operating status for external changeover 7012 Duration of external changeover 7013...
  • Page 74 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 75 Commissioning/service reports Control parameter report (cont.) Electric booster heater Parameter Code Delivered condition Commission- Maintenance/ service "Enable instantaneous heating water 7900 heater" "Enable electric heaters for DHW heat- 7901 ing" "Enable instant. heating water heater for 7902 central heating" "Start delay instantaneous heating water 7905 30 min heater"...
  • Page 76 Commissioning/service reports Control parameter report (cont.) Heating water buffer cylinder Parameter Code Delivered condition Commission- Maintenance/ service Enable buffer cylinder/low loss header 7200 ≙ Temp in operating status fixed value for buf- 7202 500 ( 50 °C) fer cyl ≙ Hysteresis temperature heating buffer cylin- 7203 50 (...
  • Page 77 Commissioning/service reports Control parameter report (cont.) Heating circuit 3 Parameter Code Delivered condition Commission- Maintenance/ Service ≙ "Standard room temperature" 4000 200 ( 20 °C) ≙ "Reduced room temperature" 4001 160 ( 16 °C) "Remote control" 4003 Room temperature control 4005 ≙...
  • Page 78 Commissioning/service reports Control parameter report (cont.) Parameter Code Delivered condition Commission- Maintenance/ service Flow rate nominal ventilation 7D0B Vitovent 200-C: ■ 115 m Vitovent 300-F: ■ 170 m Flow rate intensive ventilation 7D0C Vitovent 200-C: ■ 155 m Vitovent 300-F: ■...
  • Page 79 Commissioning/service reports Control parameter report (cont.) Parameter Code Delivered condition Commission- Maintenance/ service Reduced ventilation C10A Vitovent 200-W: ■ 25 % Vitovent 300-C: ■ 75 m Vitovent 300-W: ■ 100 m Standard ventilation C10B Vitovent 200-W: ■ 50 % Vitovent 300-C: ■...
  • Page 80 Commissioning/service reports Control parameter report (cont.) Photovoltaics Parameter Code Factory setting 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 81 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 77FC Send outside temperature...
  • Page 82 Specification Specification Type BWT-M 221.B06 221.B08 221.B10 Performance data to EN 14511 (B0/W35, 5 K spread) Rated heating output 5.71 7.47 10.29 Cooling capacity 4.32 5.94 8.20 Power consumption 1.36 1.78 2.32 Coefficient of performance (COP) 4.20 4.20 4.60 ε Brine (primary circuit) Capacity Minimum flow rate...
  • Page 83 Specification Specification (cont.) Type BWT-M 221.B06 221.B08 221.B10 Refrigerant circuit Refrigerant R410A R410A R410A Refrigerant charge 1.95 ■ Global warming potential (GWP) 1924 1924 1924 ■ equivalent ■ Permiss. operating pressure High pressure side ■ Low pressure side ■ Compressor Type Hermetically sealed scroll compressor Oil in compressor...
  • Page 84 Specification Specification (cont.) Type BWT-M 221.B06 221.B08 221.B10 Energy efficiency class to EU Regulation no. 813/2013 Heating, average climatic conditions Low temperature applications (W35) ■ Medium temperature applications (W55) ■ DHW heating Draw-off profile XL ■ Heating performance data in accordance with EU Regulation No.

  • Page 85: 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 86: Declaration Of Conformity

    Declaration of Conformity Declaration of conformity We, Viessmann Werke GmbH & Co. KG, D-35107 Using the serial number, the full Declaration of Con- Allendorf, declare as sole responsible body that the formity can be found on the following website: named product complies with the European directives and supplementary national requirements in terms of www.viessmann.co.uk/eu-conformity...
  • Page 87 Keyword index Keyword index Control PCB............... 31 Air vent valve Control unit – Condenser...............66 – Controller and sensor PCB........31 Air vent valves – Expansion PCB............28 – Primary circuit............66 Cooling............... 26 Ambient temperatures..........10 Cooling circuit.............19 Anode connection............48 Cooling function............
  • Page 88 Keyword index Keyword index (cont.) Inspection..............44 Feed............... 37, 38, 39 Installation room............10 Filling Instantaneous heating water heater..26, 57, 66, 82 – Primary side............45 – Power cable............22 – Secondary side............46 – Resetting..............62 Fill water..............46 – Resetting high limit safety cut-out......62 Filter................
  • Page 89 Keyword index Keyword index (cont.) Programming unit............64 Parameter group selection......... 54 – Opening..............65 Parameters Programming unit cover..........65 – Circulation pump for DHW reheating...... 55 Protective anode check..........48 – Cooling function............57 Protective magnesium anode......48, 49, 51 – DHW circulation pump..........55 –...
  • Page 90 Keyword index Keyword index (cont.) Service termination............ 53 Terminator, Modbus............32 Setting primary pump..........45 Three-way diverter valve..........66 Signal connections............. 29 Tightness test............42, 63 Siting................10 Tilting angle..............10 Siting conditions............12 TNC system............38, 39 Smart Grid..............61 Top-up water.............. 46 –...
  • Page 92 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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