Viessmann Vitovalor PA2 Installation And Service Instructions For Contractors
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Viessmann Vitovalor PA2 Installation And Service Instructions For Contractors

Micro chp unit on fuel cell basis 0.75 kw (pel) natural gas version
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VIESMANN
Installation and service instructions
for contractors
Vitovalor PA2
Type E00T
Micro CHP unit on fuel cell basis
0.75 kW (P
)
el
Natural gas version
VITOVALOR PA2
Please keep safe.
5839343 GB
10/2019

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Summary of Contents for Viessmann Vitovalor PA2

  • Page 1 VIESMANN Installation and service instructions for contractors Vitovalor PA2 Type E00T Micro CHP unit on fuel cell basis 0.75 kW (P Natural gas version VITOVALOR PA2 Please keep safe. 5839343 GB 10/2019...
  • Page 2 Safety instructions Safety instructions Please follow these safety instruc- tions closely to prevent accidents and material losses. Safety instructions explained Danger Note This symbol warns against the risk Details identified by the word "Note" of injury. contain additional information. Please note This symbol warns against the risk of material losses and environmen- tal pollution.
  • Page 3 Viessmann. water pipes to discharge static loads. Repair work Please note Repairing components that fulfil a safety function can compromise the safe operation of the system. Replace faulty components only with genuine Viessmann spare parts.
  • Page 4 Safety instructions Safety instructions (cont.) Safety instructions for operating the system If you smell gas Condensate Danger Danger Escaping gas can lead to explo- Contact with condensate can be sions which may result in serious harmful to health. injury. Never let condensate touch your Do not smoke.
  • Page 5 Safety instructions Safety instructions (cont.) Danger The simultaneous operation of the boiler and appliances that exhausts air to the outside can result in life threatening poisoning due to a reverse flow of flue gas. Fit an interlock circuit or take suita- ble steps to ensure an adequate supply of combustion air.
  • Page 6 Disposal of packaging ................Symbols ....................Intended use ..................Product information ................10 Vitovalor PA2 ..................10 ■ Vitovalor PA2 in systems with photovoltaic and solar thermal equip- ■ ment ....................10 System examples ................10 ■ Spare parts lists .................. 11 ■...
  • Page 7 Index Index 6. Diagnosis and service Calling up the service menu ..............61 checks Service menu overview ..............61 ■ Exiting the service menu ..............61 ■ Changing the service password ............. 61 Resetting all passwords to the factory setting ........62 Diagnosis ....................
  • Page 8 Index Index (cont.) 14. Keyword index ........................ 95...
  • Page 9 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 10 DHW heating. Vitovalor PA2 in systems with photovoltaic and solar thermal equipment It is not possible to operate the Vitovalor PA2 in con- Either combination would reduce the runtimes of the junction with a solar thermal system.
  • Page 11 Information Product information (cont.) Spare parts lists Information about spare parts can be found on the Viessmann spare parts app.
  • Page 12 As far as possible, leave the appliance in its packag- ■ ing while handling. Note If necessary, the weight of the Vitovalor PA2 can be reduced for handling. To do this, remove the appliance's side panels: See page 38. When transporting, keep upright at all times on the ■...
  • Page 13 Preparing for installation Siting (cont.) Dimensions Fig. 2 Condensate drain Observe the necessary fall. The balanced flue bend can be positioned to the left or right Wiring area Note ■ Ensure there is sufficient space next to the appliance for the condensate drain pipe. ■...
  • Page 14 This operating mode is described making the electrical connection to the mains: as mains parallel mode. For this, the Vitovalor PA2 is TAR medium voltage VDE-AR-N-4110 ■...
  • Page 15 A net AC meter (Z2) is integrated into the Vitovalor PA2. This meter captures total electrical power generated, minus that consumed by the Vitovalor PA2 itself. This meter is MID-calibrated and is licensed for statements to DIN VDE AR-N 4105:2011-08 and the combined heat and power act (KWKG) (Germany).
  • Page 16 S1 Bidirectional energy management meter (not rele- vant for billing by the grid operator) vant for billing by the grid operator) Z1 Balancing bidirectional meter Z1 Balancing bidirectional meter Z2 Export meter (standard delivery on Vitovalor PA2) Z2 Export meter (standard delivery on Vitovalor PA2)
  • Page 17 S1 Bidirectional energy management meter (not rele- vant for billing by the grid operator) Z1 Balancing bidirectional meter (observe meter cir- cuit) Z2 Export meter (standard delivery on Vitovalor PA2) 1~/N/PE Fig. 6 Source: VDE AR-N 4105 Low voltage grid...
  • Page 18 S2 Bidirectional energy management meter (not rele- vant for billing by the grid operator) Z1 Balancing bidirectional meter (observe meter cir- cuit) Z2 Export meter (standard delivery on Vitovalor PA2) 1~/N/PE Fig. 7 Source: VDE AR-N 4105 Low voltage grid...
  • Page 19 33 and 4(3) of the German CHP Act (KWKG) 400V / 230V~ 1~/N/PE 1~/N/PE Fig. 8 Low voltage grid Vitovalor PA2 Main power supply GS protection Domestic distribution box Inverter (DC/AC converter) S = 0.75 kVA EMAX Property boundary...
  • Page 20 Z1 Balancing bidirectional meter (observe meter cir- Z3 Export meter for power generation by cuit) Vitovalor PA2 (standard delivery with Electricity meter for power export and drawing Vitovalor PA2) Z2 Export meter for photovoltaic system power gener- Z4 Export meter for Vitovalor PA2 alone ation...
  • Page 21 Fig. 9 Low voltage grid On-site consumers Main power supply Short circuit protection Domestic distribution box Overload protection, RCD Property boundary Vitovalor PA2 Grid operator GS protection Customer Inverter (DC/AC converter) S = 0.75 kVA EMAX Power distribution Fuel cell stack...
  • Page 22 Z4 Export meter for Vitovalor PA2 alone Fuse protection The Vitovalor PA2 has been factory-tested as a unit The Vitovalor PA2 must not be installed in the same that is ready for connection. Only an adequately sized final consumer circuit as other consumers.
  • Page 23 RCD . These two conditions ensure that RCD of the Vitovalor PA2 responds earlier than upstream l in A Fig. 11 Response characteristics of the residual cur-...
  • Page 24 Installation sequence Installing and aligning the Vitovalor PA2 Fitting the connection set The connection set is supplied in a separate cardboard package. 3 x 24 Nm Fig. 12 Heating return R ¾ Gas shut-off valve Heating flow R ¾ 1. Remove the sealing plug.
  • Page 25 Installation sequence Installing and aligning the Vitovalor PA2 (cont.) Removing the front panels Fig. 13 Note Hook in the programming unit mounting bracket in the service position: See page 40.
  • Page 26 Installation sequence Installing and aligning the Vitovalor PA2 (cont.) Routing drain lines Note The condensate hoses are secured to the back of the programming unit mounting bracket. Fig. 14 Please note Note Bends in the condensate hoses impede draining Connecting hoses to the on-site waste water pipe: See of the condensate.
  • Page 27 Installation sequence Installing and aligning the Vitovalor PA2 (cont.) Aligning the heat generator at the installation site Fig. 15 Fitting accessories Check before final siting: Have all the accessories which are to be mounted from the back of the boiler been fitted (e.g.
  • Page 28 In conjunction with Vitodens 200-W, type B2HB: The control unit has to be re-programmed. ■ If the Vitovalor PA2 and Vitodens 200-W, type B2HA or Setting parameters/codes B2HB are connected to a shared flue system, fit a Installation and service instructions back draught safety device in every Vitodens.
  • Page 29 Installation sequence Condensate connection Route condensate hoses from the side openings to the building's drainage system: See page 26. Connect drain hoses with a constant fall and a pipe vent to the building's drainage system. If required, install a condensate removal pump (accessories). Please note Bends in the condensate hoses impede draining of the condensate.
  • Page 30 Installation sequence Opening the wiring chamber Fig. 19 Please note Electronic assemblies can be damaged by elec- trostatic discharge. Prior to commencing any work, touch earthed objects such as heating or water pipes to dis- charge static loads. HMU heat management unit electrical connections Overview of electrical connections Fig.
  • Page 31 HMU heat management unit must be set to "I". If the Vitovalor PA2 is integrated in a CAN bus system and is located at the beginning or end of this system (not in the middle), the terminator must be set to ON.
  • Page 32 Installation sequence Electrical connections for EM-MX mixer… (cont.) Overview of electrical connections [{] [{] [{] [{{] fÖ L ? N L ? N 230 V~/50 Hz Fig. 22 230 V~ plug connections Please note No function Electronic assemblies can be damaged by elec- 3-way mixing valve, heating water buffer cylin- trostatic discharge.
  • Page 33 Electrical connections for EM-MX mixer… (cont.) Positioning of temperature sensors and integration of 3-way mixing valve Example: Vitovalor PA2 with heating water buffer cylinder and gas condensing boiler TS1 ? Fig. 23 Raised system return temperature sensor System return temperature sensor...
  • Page 34 Installation sequence Electrical connections for EM-MX mixer… (cont.) Connect PlusBus to HMU heat management unit Note If making the connection to the heat generator with an external plug for the BUS connection, disconnect plug and connect the wires directly. Fig. 24 EM-MX mixer extension kit (ADIO electronics mod- ule) PlusBus...
  • Page 35 III (3 mm) for complete isolation. The ON/OFF switches integrated into the Vitovalor PA2 fulfil this function. 3. Route 230 V cables and extra low voltage (ELV)
  • Page 36 Installation sequence System power supply (cont.) 4. Only strip the minimum of insulation from cables as Note close as possible to the terminals and bundle If fault messages are displayed: See page 67. tightly to the corresponding terminals. 5. Secure cables with cable ties. Danger The absence of system component earthing can lead to serious injury from electric current if an...
  • Page 37 Installation sequence Fitting the front panels Fig. 28 Fitting the programming unit Fig. 29 Light bar (light guide) faces downward...
  • Page 38 Installation sequence Removing the side panels If required for easier handling, the weight of the Vitovalor PA2 can be reduced. For this, remove the side panels. Fig. 30...

  • Page 39: Table Of Contents

    Commissioning, inspection, maintenance Steps - commissioning, inspection and maintenance Commissioning steps Inspection steps Maintenance steps Page • • • 1. Removing the front panels....................40 • 2. Checking the power supply • 3. Switching on the power supply for the fuel cell module..........41 •...

  • Page 40: Removing The Front Panels

    Commissioning, inspection, maintenance Removing the front panels See page 25. Moving the programming unit into the service position For commissioning and maintenance, the program- ming unit can be moved to hang on the appliance in the service position. Do not disconnect the connection cable.

  • Page 41: Switching On The Power Supply For The Fuel Cell Module

    Commissioning, inspection, maintenance Switching on the power supply for the fuel cell module 1. Close the gas shut-off valve. 2. Switch ON/OFF switches to ON. Fig. 32 ON/OFF switch for internal circulation pump and control unit Export meter Z2 Fuel cell module ON/OFF switch ON/OFF switch at the fuel cell Commissioning the system with the commissioning assistant Please note...

  • Page 42: Filling The System Separation Circuit

    Commissioning, inspection, maintenance Commissioning the system with the commissioning… (cont.) 3. Select by which means commissioning will be car- 6. When all the required commissioning steps have ried out: been performed, tap ■ Commissioning assistant integrated in the pro- Safety instructions are shown on the display. gramming unit: "by panel"...
  • Page 43 Commissioning, inspection, maintenance Filling the system separation circuit (cont.) Please note Unsuitable fill water increases the level of deposits and corrosion. This can cause damage to the appliance. ■ The fill and top-up water must be softened, e.g. with a small heating water softener. Permissible total hardness of the fill and top- ■...

  • Page 44: Filling The Secondary Circuit

    Commissioning, inspection, maintenance Filling the system separation circuit (cont.) 06. Undo the screw cap on drain valve 13. Switch on the fuel cell circulation pump (System and con- nect the drain hose to the drain outlet. separation circuit pump) via software tool or an actuator test: See page 62.
  • Page 45 Commissioning, inspection, maintenance Filling the secondary circuit (cont.) Total permissible hardness of the fill and top-up water Total heating output Specific system volume < 20 l/kW 20 l/kW to < 50 l/kW 50 l/kW ≥ ≥ ≤ 3.0 mol/m (16.8 °dH) 2.0 mol/m (11.2 °dH) <...

  • Page 46: Filling The Fuel Cell Module Trap

    Danger Escaping flue gas can damage your health. If the peak load boiler (existing boiler) is to be operated before the Vitovalor PA2 has been commissioned, and both appliances are connec- ted to a shared flue pipe: The trap on the fuel cell module must be filled.

  • Page 47: Checking All Connections On The Heating Water Side For Leaks

    Commissioning the fuel cell module Further commissioning of the fuel cell module may Danger only be carried out by Viessmann Technical Service or Escaping flue gas can damage your health. a contractor certified by Viessmann. If the peak load boiler (existing boiler) is to be...

  • Page 48: Changing The Gas Type On The Fuel Cell Module

    Commissioning, inspection, maintenance Starting maintenance mode (cont.) Tap the following buttons: to confirm Note The parts required for fuel cell module maintenance "Fuel cell" are available as a maintenance pack. 3. "Maintenance mode ON" Programming unit on the fuel cell module Some settings for commissioning and maintenance Programming unit can only be made using the programming unit on the...

  • Page 49: Adjusting Parameters For The Mains Monitor (Ens) (Country Setting)

    Commissioning, inspection, maintenance Adjusting parameters for the mains monitor (ENS) (country setting) Factory setting: "0" 4. Press SET to confirm. The "Commissioning/service" operating mode must be active ("MNT" illuminates). Checking mains monitoring parameters (ENS), see page 64. 1. Use to select "80". 2.

  • Page 50: Terminating Maintenance Mode And Activating Energy Manager

    ■ If a fault recurs or the cause of the fault is with the screw. unclear, notify Viessmann Technical Service. 19. Terminate maintenance mode if the transferred 13. Fit the closure of vent aperture electrical output is more than 600 W: See energy 14.

  • Page 51: Checking The Balanced Flue System For Tightness (Annular Gap Test)

    Commissioning, inspection, maintenance Terminating maintenance mode and activating… (cont.) 5. Check that the "MNT" indicator on the fuel cell module programming unit is OFF. If the indicator is still illuminated, terminate mainte- nance mode via the programming unit of the fuel cell module: See the following chapter.

  • Page 52: Yearly Maintenance Of Fuel Cell Module

    Commissioning, inspection, maintenance Checking the balanced flue system for tightness… (cont.) If actual CO values are greater or O values are lower, Danger Escaping flue gas can damage your health. then pressure test the flue pipe with a static pressure After the tightness test, re-seal the test port with of 200 Pa.

  • Page 53: Yearly Maintenance Of Fuel Cell Module

    "34" will appear on the display. In such a case, inform Viessmann Technical Service. 4. Press and hold SET for at least 3 s. 1. Turn on the ON/OFF switch on the fuel cell mod- "_CL"...

  • Page 54: Checking The Diaphragm Expansion Vessel And Pressure In The System Separation Circuit

    Commissioning, inspection, maintenance Checking the diaphragm expansion vessel and pressure in the system separation circuit Fig. 43 Note 5. Check the pre-charge pressure of the diaphragm ■ Carry out this test on a cold system. expansion vessel once a year. Set value: 0.6 bar ■...

  • Page 55: Checking The Safety Valve Function

    Commissioning, inspection, maintenance Check the external diaphragm expansion vessel… (cont.) Carry out this test on a cold system. 3. Top up with water until the charge pressure of the cooled system is at least 1.0 bar (0.1 MPa), and is 1.

  • Page 56: Checking The Combustion Quality

    Commissioning, inspection, maintenance Checking the combustion quality Fig. 44 1. Connect a flue gas analyser at flue gas port Note the boiler flue connection. A CO or O test on the fuel cell module is not neces- sary. Note The fuel cell module must be in operation (power generation) for the measurement.
  • Page 57 System configuration (parameters) Calling up parameters Parameters are split into the following groups: 5. Select group. ■ "General" ■ "Fuel cell" to select parameter. Tap the following buttons: at the required parameter for the required value in line with the tables below.
  • Page 58 System configuration (parameters) General (cont.) 912.4 "Month of changeover from summer to wintertime" Setting Explanations Month of changeover: October 1 to 12 Month of changeover adjustable from January to De- cember 1098.4 "Gas volume correction factor" Setting Explanations Value is provided on the gas supplier's bill. Used for gas consumption data.
  • Page 59 System configuration (parameters) Fuel cell (cont.) 600.0 "Reset fuel cell service counter" Setting Explanations Reset service counter once service has been carried out. Service counter reset Reset the service counter. 1097.0 "Export price, electrical energy per kWh" Setting Explanations Export price for electrical energy per kWh 0.043 Export price in the delivered condition 0.043 0.001 to...
  • Page 60 System configuration (parameters) Fuel cell (cont.) 1431.3 "CO2 factor power exported to grid per kWh" Setting Explanations factor in g/kWh Factor in the delivered condition 800 g/kWh ≙ 0 to 1000 Adjustable from 0.00 to 10.00 0 to 1000 g/kWh 1585.0 "Set system return temperature"...
  • Page 61 Diagnosis and service checks Calling up the service menu Tap the following buttons: 3. Enter password "viservice". to confirm "Service" 5. Select the required menu section. Service menu overview Note Note Depending on the selected application, not all of the to return to "Service, main menu".
  • Page 62 Resetting all passwords to the factory setting Tap the following buttons: 5. "Change passwords" 1. Request the master password from the Viessmann 6. "Reset all passwords" Group Technical Service. 7. Enter master password. 8. Press twice to confirm "Service"...
  • Page 63 OPEN Buffer mixing valve CLOSE Buffer mixing valve STOP Checking the power generated Operating instructions for Vitovalor PA2 Checking the gas consumption to reclaim fuel tax Operating instructions for Vitovalor PA2 Checking the operating condition Operating instructions for Vitovalor PA2...
  • Page 64 0.0 s Nominal voltage 230 V — Nominal current 3.26 A — Removing the SD card The SD card is delivered already in place. Data stor- age for the fuel cell module begins as soon the Vitovalor PA2 is commissioned.
  • Page 65 Diagnosis and service checks Removing the SD card (cont.) 1. Remove cover 2. Use to select "04" on the programming unit. 3. Press SET to confirm. 4. On the programming unit, use to select "oFF". 5. Press SET to confirm. 6.
  • Page 66 Troubleshooting Fault display and other messages on the programming unit If there is a message, the display shows the message Tap on in the navigation area to call up the mes- plus sage. If switched on, the light guide on the lower edge of the Explanation of messages: See chapter "Message over- programming unit flashes.
  • Page 67 2. Press and hold SET for at least 3 s. A fault must be rectified before it can be cleared. "_CL" is displayed in STATE. Inform Viessmann Technical Service if necessary. The fault message has been cleared. 1. Use to select "52" in ITEM.
  • Page 68 Ingress of flue gas due to insuffi- ■ cient clearance from, for example, the flue system of a solid fuel boiler If the fault recurs, notify Viessmann Technical Service. Note Reset the message on the fuel cell module programming unit.
  • Page 69 F.198/17F0 No power generation Fault, reformer burner ig- Reset the fault once. nition If the fault recurs, notify Viessmann Technical Service. F.199/19F0 No power generation Fault, reformer burner ig- Reset the fault once. nition If the fault recurs, notify Viessmann Technical Service.
  • Page 70 No power generation Air in the distilled water Carry out fuel cell module commis- circuit sioning again. If the fault recurs, notify Viessmann Technical Service. Note The message can only be cleared on the programming unit of the fuel cell module.
  • Page 71 Outgassing/contamination in the air supply system (e.g. sili- cones, oils, paints, detergents, deposits, etc.) If the fault recurs, contact Viessmann Technical Service. Note The fault message can only be cleared on the programming unit of the fuel cell module. F.305/C2F2...
  • Page 72 F.523/18F0 No power generation Fault, reformer burner ig- Reset the fault once. nition If the fault recurs, notify Viessmann Technical Service. F.524/18F1 No power generation Fault, reformer burner ig- Reset the fault once. nition If the fault recurs, notify Viessmann Technical Service.
  • Page 73 Troubleshooting Message overview (cont.) HMU heat man- System characteristics Cause Measures agement unit / fuel cell module mes- sage P.5/05F0 No power generation 5-yearly fuel cell service Carry out the 5-yearly service. required Note The message can only be cleared on the programming unit of the fuel cell module.
  • Page 74 Troubleshooting Message overview (cont.) "Warnings" HMU heat man- System characteristics Cause Measures agement unit / fuel cell module mes- sage A.5/04F0 Fuel cell module in operation 45 days until the 5-yearly Carry out the 5-yearly service. service A.6/04F1 Fuel cell module in operation 30 days until the 5-yearly Carry out the 5-yearly service.
  • Page 75 Troubleshooting Repairs Moving the programming unit to the service position If required for commissioning and servicing, the pro- gramming unit can be moved to a different position. Fig. 47...
  • Page 76 Troubleshooting Repairs (cont.) Draining the system on the heating water side Draining the secondary circuit Only when necessary for repair work. Fig. 48 1. Close shut-off valves on the heating 2. Attach an on-site drain hose to drain valve water side. route it into a drain.
  • Page 77 Troubleshooting Repairs (cont.) 4. Connect the on-site drain hose to flush & vent 7. Further drain the secondary circuit by opening valve and route it into a drain. shut-off valves 5. Open air vent valve 8. Close shut-off valves and remove drain hose.
  • Page 78 Troubleshooting Repairs (cont.) 1. Disconnect plug and measure the sensor resist- ance: See connection and wiring diagrams from page 87. 2. Compare the sensor resistance with the curve. 3. In the event of severe deviation replace the sensor. Temperature in °C Fig.
  • Page 79 Troubleshooting Repairs (cont.) Checking the plate heat exchanger system separation Note During and after removal, small amounts of water may trickle from the plate heat exchanger. 3.2 Nm +/-0.2 Fig. 51 1. Shut off the heating water side of the appliance. 6.
  • Page 80 Replacing the power cable When replacing the power cable, only use the power cable available as a spare part from Viessmann. Replacing the HMI connecting cable Please note Incorrect routing of the cable can lead to heat damage and impairment of the EMC properties.
  • Page 81 Troubleshooting Repairs (cont.) Removing the secondary circuit circulation pump 4.2 Nm +0.5 20 Nm +/-1 15 Nm +/-0.5 24 Nm +/-1 4.2 Nm +/-0.2 4.2 Nm +/-0.2 Fig. 53 1. Shut off the heating water side of the appliance. 5. Move the mains distributor box into the service position: See chapter "Mains distributor box service 2.
  • Page 82 Troubleshooting Repairs (cont.) Removing the hydraulic unit Note Before the hydraulic unit can be removed, the secon- dary circuit circulation pump must be removed: See chapter "Removing the secondary circuit circulation pump". 24 Nm +/-1 4.2 Nm +/-0.2 5 Nm +0.5 Fig.
  • Page 83 Troubleshooting Repairs (cont.) Replacing the power cable When replacing the power cable, use the following cable type: H05V2V2-F 3 G 1.5 mm . Connection: See page 88. Checking the fuse 1. Switch the ON/OFF switch to OFF: See page 41. 2.
  • Page 84 Troubleshooting Repairs (cont.) Changing the rotational direction of the mixer motor (if required) 1. Remove the top casing cover of the extension kit. Danger An electric shock can be life threatening. Before opening the boiler, disconnect it from the mains voltage, e.g. at the fuse or mains isolator.
  • Page 85 Troubleshooting Repairs (cont.) Checking the middle cylinder temperature sensor 1. Remove plug at slot TS3 on the extension kit. 2. Check the sensor resistance and compare it to the curve. In the event of severe deviation replace the sensor. Temperature in °C Fig.
  • Page 86 Electrical output of the fuel cell Electrical output is influenced by the gas quality and Vitovalor PA2 is operated with constant heat input (gas the geodetic head. Electrical output is also reduced by input) and constant overall efficiency. This means that...
  • Page 87 Connection and wiring diagrams Overview connection diagrams Fig. 60 A1 Mains distributor box A4 HMI programming unit with RF module (wireless A2 HMU heat management unit module) A3 EM-MX mixer extension kit (ADIO electronics mod- A5 Fuel cell ule) A6 External electricity meter...
  • Page 88 Connection and wiring diagrams Mains distributor box Fig. 61 A1 Mains distributor box Power supply Z1 Electricity meter S0-BUS HMU heat management unit Fuel cell...
  • Page 89 Connection and wiring diagrams HMU heat management unit connection diagram Fig. 62 HMU heat management unit Fuel cell circulation pump (System separation HMI programming unit with RF module (wire- circuit pump) less module) No function Switching mode power supply X... Electrical interfaces Fuse No function...
  • Page 90 Connection and wiring diagrams HMU heat management unit connection diagram (cont.) Power supply From mains distributor box fÖ PlusBus To the fuel cell CAN bus To the electricity meter No function Terminator Power supply for accessories EM-MX mixer extension kit (ADIO electronics module) Fig.
  • Page 91 Commissioning/service reports Commissioning/service reports Settings and test values Set value Commis- Mainte- Mainte- Mainte- sioning nance/ nance/ nance/ service service service Date Signature Static pressure mbar ≤ ≤ Supply pressure (flow pres- sure) For natural gas E mbar 17.4-25 For natural gas LL 1.74-2.5 Tick gas type.
  • Page 92 Specification Specification Rated heating output Rated heat input Electrical output Power consumption In the delivered condition Maximum 1400 Standby Rated voltage Rated frequency Current (max.) Radio module Used frequency bands 2400 MHz to 2483.5 MHz Maximum WiFi transmission power Maximum ZigBee transmission power Supply values relative to the max.
  • Page 93 Disposal Final decommissioning and disposal Viessmann products can be recycled. Components For decommissioning the system, isolate the system and substances from the system are not part of ordi- from the power supply and allow components to cool nary household waste.
  • Page 94 Certificates 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 www.viessmann.co.uk/eu-conformity...
  • Page 95 Keyword index Keyword index Fault messages............67 Air filter replacement..........53 – Display..............66 Appliance alignment...........24 Faults – Display..............66 Fill water..............44 Bidirectional meter......16, 17, 18, 20, 22 Flue gas connection........... 27 Flue system..............28 Front panels Calling up messages – Fitting..............37 –...
  • Page 96 Keyword index Keyword index (cont.) Message history............66 Residual current device..........23 Message overview............. 67 Response characteristics........... 23 Meter cupboard............16 Response times............23 Mixer OPEN/CLOSED..........83 Rotational direction, mixer motor – Changing..............84 – Checking..............83 ON/OFF switch – Control unit............16, 22 –...
  • Page 100 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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