Viessmann VITOCAL 150-A Installation And Service Instructions Manual

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Operating instructions for the system user (60 pages)

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VIESMANN

Installation and service instructions

for contractors

Vitocal 150-A

Type AWO(-M)-E-AC/AWO(-M)-E-AC-AF 151.A

Air source heat pump, monoblock version for heating and cooling operation, with

1 integrated heating/cooling circuit

VITOCAL 150-A

Please keep safe.

6171807 GB

10/2021

Table of Contents

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Page 1 VIESMANN Installation and service instructions for contractors Vitocal 150-A Type AWO(-M)-E-AC/AWO(-M)-E-AC-AF 151.A Air source heat pump, monoblock version for heating and cooling operation, with 1 integrated heating/cooling circuit VITOCAL 150-A Please keep safe. 6171807 GB 10/2021...
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 The outdoor unit contains easily flamma- This symbol warns against the risk ble refrigerant in safety group A3...
Page 3 Safety instructions Safety instructions (cont.) Regulations to be observed National installation regulations Relevant country-specific safety regu- ■ ■ Statutory regulations for the prevention lations ■ of accidents Applicable regulations and guidelines ■ Statutory regulations for environmental for operation, service, maintenance, ■...
Page 4 Safety instructions Safety instructions (cont.) Do not remove, block or bridge safety Please note ■ equipment. Electronic assemblies can be dam- Do not make any changes: aged by electrostatic discharge. ■ Do not modify the outdoor unit, inlet/ Before beginning work, touch outlet lines, electrical connections/ earthed objects, such as heating or cables or the surroundings.
Page 5 Safety instructions Safety instructions (cont.) A CO or powder extinguisher must be Danger ■ Refrigerant is under pressure: to hand in the following cases: Mechanical loading of lines and Refrigerant is being drained. – components can cause leaks in the Refrigerant is being topped up.
Page 6 Freezing can cause damage to the safe operation of the system. heat pump. Replace faulty components only ■ Thermally insulate all the ■ with genuine Viessmann spare hydraulic lines. parts. In order to activate the frost pro- ■ Do not undertake any repairs on ■...
Page 7 Safety instructions Safety instructions (cont.) Safety instructions for operating the system What to do if refrigerant escapes If water escapes from the appliance Danger Danger Escaping refrigerant can lead to fire If water escapes from the appliance and explosions that result in very there is a risk of electric shock.
Page 8 Safety instructions Safety instructions (cont.) Safety instructions for storage of the outdoor unit The outdoor unit is charged at the fac- Temperature range for storage: 25 °C – ■ tory with refrigerant R290 (propane). to 70 °C Only store the outdoor unit in its ex- ■...
Page 9 Index Index 1. Information Disposal of packaging ................12 Symbols ....................12 Intended use ..................12 Product information ................13 Layout and functions ................13 ■ System examples ................14 ■ Spare parts lists .................. 14 ■ 2. Preparing for installation Requirements for on-site connections ...........
Page 10 ■ Removing the additional EPP insulation pieces ......... 141 ■ Status display, internal circulation pump ..........142 Checking the temperature sensors ............143 Viessmann NTC 10 k (blue marking) ..........144 Ω ■ Checking the pressure sensors ............. 145 Checking the fuse .................. 145 7.
Page 11 Index Index (cont.) 10. Appendix Commissioning order ................173 Final decommissioning and disposal ............. 173 Certificates Declaration of conformity ............... 175 12. Keyword index ........................176...
Page 12 Information Disposal of packaging Please dispose of packaging waste in line with statu- tory regulations. Symbols Symbols in these instructions The steps in connection with commissioning, inspec- tion and maintenance are found in the "Commission- ing, inspection and maintenance" section and identified Symbol Meaning as follows:...
Page 13 Product information Layout and functions Vitocal 150-A is a monoblock air source heat pump, System with external heating water buffer cylinder comprising 1 indoor unit and 1 outdoor unit. The heat pump heats up to 4 heating circuits: 1 heat-...
Page 14 230 V~ 230 V~ Control unit/PCB, indoor unit Outdoor unit Instantaneous heating water heater System examples Available system examples: See www.viessmann-schemes.com. Spare parts lists Information about spare parts can be found at www.viessmann.com/etapp or in the Viessmann spare part app.
Page 15 Preparing for installation Requirements for on-site connections A B C Fig. 2 Min. installation height DHW cylinder return (on the heating water side), Depends on whether the programming unit is fitted connection Cu 22 x 1.0 mm below or above. Secondary circuit return (heating/cooling circuit 1/ Secondary circuit flow (heating/cooling circuit 1 / heating water buffer cylinder), connection Cu 28 x...
Page 16 Preparing for installation Requirements for on-site connections (cont.) Note Min. installation height: See chapters "Installing the indoor unit", "Minimum installation heights" on page 34. Outdoor unit 1144 Fig. 3 Outdoor unit flow (heating water outlet): Plug-in Power cable plug connection for Cu 28 x 1.0 mm CAN bus communication cable plug (accessories) Outdoor unit return (heating water inlet): Plug-in Condensate drain...
Page 17 Installation sequence Installing the outdoor unit Transport Danger Please note The outdoor unit is filled with refrigerant R290 Excessive tilting of the outdoor unit will lead to (propane): Mechanical loading can lead to leaks equipment damage. in the refrigerant circuit. Where leaks of refriger- ■...
Page 18 Installation sequence Installing the outdoor unit (cont.) Fig. 4 Transport aid...
Page 19 Installation sequence Installing the outdoor unit (cont.) Removing the transport aids After handling, remove all transport aids. Fig. 5 Installation information Floorstanding installation Wall mounting Particularly in adverse climatic environments (minus Use the wall mounting bracket set (accessories). ■ temperatures, snow and humidity) a distance to the The wall must meet the structural requirements.
Page 20 Installation sequence Installing the outdoor unit (cont.) If the outdoor unit is to be installed on a flat roof, in During defrosting, cool vapour escapes from the out- ■ addition to the requirements for floor and wall installa- door unit air discharge vents. This vapour discharge tion, the following planning measures to be taken into must be taken into consideration during installation account include:...
Page 21 Installation sequence Installing the outdoor unit (cont.) If a design casing for the support for floorstanding Structure-borne noise insulation and vibration iso- ■ installation (accessories) is used: lation between the building and outdoor unit For pipework inside the support, use the thermal insulation supplied.
Page 22 Installation sequence Installing the outdoor unit (cont.) Do not install in recesses or between walls. This Property boundaries, neighbouring properties, foot- ■ ■ could result in an "air short circuit" between the air paths and driveways being discharged and the air being drawn in. ■...
Page 23 Installation sequence Installing the outdoor unit (cont.) Siting the outdoor unit in front of an external wall Corner positioning of the outdoor unit, left 2144 2144 3144 2644 3144 1000 Fig. 7 Safety zone Fig. 9 Corner positioning of the outdoor unit, right Safety zone 2394 2894...
Page 24 Installation sequence Installing the outdoor unit (cont.) Minimum clearances 1000 Fig. 10 Air intake Air discharge ■ Line entry above ground level: 250 mm ≥ Line entry below ground level: ■ 450 mm ≥ Draining condensate via a soakaway ■ Allow the condensate to drain away freely without a drain pipe into a gravel bed beneath the outdoor unit.
Page 25 Installation sequence Installing the outdoor unit (cont.) Condensate drain connector Foundation Frost protection (compacted crushed stone) Drain pipe with ribbon heater (at least DN 40) Ground Seepage layer for removal of condensate Draining condensate via waste water system Note Condensate drain connector To ensure correct function of the condensate drain Foundation even at low temperatures, provide a ribbon heater in...
Page 26 Installation sequence Installing the outdoor unit (cont.) Fig. 13 Frost protection for foundations (compacted Conduit (min. DN 40) for draining condensate via crushed stone, e.g. 0 to 32/56 mm); thickness of waste water system or seepage layer layer subject to local requirements and building Fixing points for support: regulations Use ground anchors with a tensile force of at least...
Page 27 Installation sequence Installing the outdoor unit (cont.) Fig. 14 Frost protection for foundations (compacted Conduit (min. DN 40) for draining condensate via crushed stone, e.g. 0 to 32/56 mm); thickness of waste water system or seepage layer layer subject to local requirements and building Anti-vibration feet (accessories): regulations Align the anti-vibration feet centrally on the founda-...
Page 28 Installation sequence Installing the outdoor unit (cont.) Floorstanding installation with support: Line entry above ground level 3000 Fig. 15 Ground Support for floorstanding installation (accessories), Pathway, patio illustration without design casing (accessories) Hydraulic connection lines, indoor/outdoor unit Foundation strip Indoor/outdoor unit CAN bus communication cable For free drainage of condensate: Gravel bed as and outdoor unit power cable: soakaway...
Page 29 Installation sequence Installing the outdoor unit (cont.) Floorstanding installation with support: Line entry Note below ground level ■ Provide thermal insulation of sufficient thickness on the pipework to the outdoor air: See table on page 20. ■ Protect the pipework against damage. Avoid trip haz- ards.
Page 30 Installation sequence Installing the outdoor unit (cont.) Danger Incorrect installation can lead to equipment damage and personal injury, e.g. if the outdoor unit falls down or falls over. Only install the outdoor unit in accordance with the specifications in these instructions. Wall mounting with bracket set for wall mounting Fig.
Page 31 Installation sequence Installing the outdoor unit (cont.) Fig. 18 Outdoor unit flow (heating water outlet) Outdoor unit return (heating water inlet) Checking the transport bracket Please note Releasing the transport lock prematurely will affect the function of the safety valve during the filling process.
Page 32 Installation sequence Installing the outdoor unit (cont.) Fig. 19 After positioning of the outdoor unit, check whether the transport bracket is completely secured with an Allen key (size 5). Securing screw , must be turned as far as it will go to the left.
Page 33 Installation sequence Installing the indoor unit (cont.) Dynamic IP addressing (DHCP, delivered condition) Depending on the angle of penetration, the effective ■ in the network (WiFi): wall thickness changes and so does the extent to Have this checked on site by an IT expert prior to which the electromagnetic waves are damped.
Page 34 Installation sequence Installing the indoor unit (cont.) Minimum clearances Do not install the indoor unit in a cupboard. Fig. 22 Minimum installation heights In the delivered condition, the programming unit is Recommended dimensions located at the bottom. For easier access, the program- ming unit can be fitted at the top, e.g.
Page 35 Installation sequence Installing the indoor unit (cont.) Fig. 24 Bracket for additional fixing screw, e.g. in earth- quake regions Connecting the secondary circuit ■ If the indoor unit was installed on the wall using a pre-plumbing jig (recommended), connect the on-site pipes to the pre-plumbing jig.
Page 36 Installation sequence Connecting the secondary circuit (cont.) Fitting the connection pieces supplied Fig. 25 Secondary circuit flow (heating/cooling circuit 1 / DHW cylinder return (on the heating water side), heating water buffer cylinder), connection Cu 28 x connection Cu 22 x 1.0 mm 1.0 mm Secondary circuit return (heating/cooling circuit 1/ DHW cylinder flow (on the heating water side),...
Page 37 Installation sequence Connecting the secondary circuit (cont.) 2. Connect all secondary side hydraulic lines (room 4. Thermally insulate lines inside the building. If room heating/cooling, DHW heating) to the indoor unit. cooling is planned for the building, use thermal and vapour diffusion-proof insulation.
Page 38 Installation sequence Connecting the secondary circuit (cont.) Connection on the DHW side For connecting the DHW side, observe EN 806, Drinking water filter DIN 1988, DIN 4753, TrinkwV Drinking Water Ordi- nance [Germany] and DVGW (CH: SVGW regula- According to DIN 1988-2, a drinking water filter must tions).
Page 39 Installation sequence Indoor unit: Removing the front panel Fig. 27 Electrical connection Preparing the electrical connections Cables Cable lengths in the indoor unit ■ For cable lengths and cable cross-sections: See the following tables. Some connection areas, e.g. for power supply and the For accessories: CAN bus communication cable, are located outside the ■...
Page 40 Installation sequence Electrical connection (cont.) Recommended power cables Indoor unit Power supply Cable Max. cable length Control unit/PCB 230 V~ Without power-OFF 50 m 3 x 1.5 mm ■ With power-OFF 50 m 5 x 1.5 mm ■ Instantaneous heating water 400 V~ 25 m 5 x 2.5 mm...
Page 41 Installation sequence Electrical connection (cont.) Overview of electrical terminal areas Fig. 28 HMI programming unit Junction box 230 V~ HPMU electronics module Extra low voltage (ELV) connection sockets 42 V ≤ EHCU electronics module Extra low voltage (ELV) connection socket 42 V ≤...
Page 42 Installation sequence Electrical connection (cont.) Removing the programming unit mounting bracket Opening the HPMU electronics module Fig. 30 Fig. 29...
Page 43 Installation sequence Electrical connection (cont.) Opening the EHCU electronics module Opening the 230 V~ junction box Fig. 32 Torque for the screws: 2.8 Nm Fig. 31 Indoor unit: Routing cables to the wiring chamber Danger Danger Damaged wiring insulation can lead to serious Incorrect wiring can lead to serious injury from injury from electrical current and result in appli- electrical current and result in appliance dam-...
Page 44 Installation sequence Electrical connection (cont.) Please note If apertures are not securely sealed this can lead to damage from condensation, vibrations and excessive noise. ■ Only break out as many terminal area open- ings as are needed for cable entries. Use suitable strain relief or cable fittings for all ■...
Page 45 Installation sequence Electrical connection (cont.) 230 V~ <42 V Fig. 33 Junction box 230 V~ HPMU electronics module EHCU electronics module...
Page 46 Installation sequence Electrical connection (cont.) Route the leads to the 230 V~ junction box Route the cables through the cable fittings. Firmly ■ secure cables. ■ Only break out as many openings in the cover as ■ Also, apply strain relief to the terminal area cables. needed.
Page 47 Installation sequence Electrical connection (cont.) Connection sockets: Sensors and BUS connections 10 kΩ 24 V CAN H CAN L 10 kΩ 10 kΩ Fig. 34 6-pole connection socket on the left 6-pole connection socket on the right 5-pole connection socket on the right...
Page 48 Installation sequence Electrical connection (cont.) 6-pole connection socket Terminals Component Explanation 1 CAN L Connection of an additional CAN bus sub- To connect the heat pump to an external 2 GND scriber CAN bus system: 3 CAN H Recommended connecting cable and further information: See chapter "Integrating a heat pump into a CAN bus system".
Page 49 Installation sequence Electrical connection (cont.) 5-pole connection socket Terminals Component Explanation 74.1 Connection of additional PlusBus subscrib- Cores are interchangeable 74.2 ers via plug 74, e.g. mixer extension kit Recommended connecting cable: Unshielded data cable: 2 x 0.34 mm ■ Max.
Page 50 Installation sequence Electrical connection (cont.) 11-pin plug Terminals Component/function Explanation P2.N DHW circulation pump Output: 230 W ■ Voltage: 230 V~ ■ P2.L Max. switching current: 1 A ■ Recommended connecting cable: 3 x 1.5 mm ■ Max. cable length: 50 m ■...
Page 51 Installation sequence Electrical connection (cont.) Functions Digital inputs Explanation 143.2 143.3 143.4 143.5 DHW circulation External demand, DHW circulation pump — — — pump demand External demand External demand from compressor and pumps — — — External blocking External blocking of refrigerant circuit and instantane- —...
Page 52 Installation sequence Electrical connection (cont.) 230 V~ connections Terminals Component Explanation 156.N Switched mains output for mains connec- Output: 230 W ■ 156. tion, accessories, e.g. mixer extension kit Voltage: 230 V~ ■ 156.L Max. switching current: 1 A ■ Recommended flexible connecting cable: 3 x 1.5 mm ■...
Page 53 156 Power supply for PlusBus subscribers in the HPMU electronics module Mixer extension kit Integrating a heat pump into a CAN bus system The Viessmann CAN bus is designed for "line" bus Integration into an external CAN bus system: ■ topology with a terminator at both ends.
Page 54 Installation sequence Electrical connection (cont.) Check the terminator when connecting to an exter- The heat pump is the central subscriber nal CAN bus system In this case, 2 connections are required on the heat The heat pump is the first or last subscriber pump for integration into the external CAN bus: ■...
Page 55 Installation sequence Electrical connection (cont.) EHCU electronics module: Additional contact humidistat 24 V Fig. 41 Clamps Component Explanation X22.1 GND Contact humidistat, 24 V for heating/cool- Recommended connecting cable: X22.2 24 V ing circuit 2 2 x 0.75 mm ■ Max.
Page 56 Installation sequence Electrical connection (cont.) Fitting the programming unit In the delivered condition, the programming unit is located at the bottom. For easier access, the program- ming unit can be fitted at the top, e.g. for lower installa- tion heights. In this case, fit the programming unit bracket at the top.
Page 57 Installation sequence Electrical connection (cont.) Installing the programming unit Note The integrated WiFi communication module supports commissioning, maintenance and servicing via the "Vitoguide app" as well as operation via the "ViCare app". The access details required for establishing the con- nection are available in triplicate as labels on the back of the programming unit.
Page 58 Installation sequence Electrical connection (cont.) Fig. 43 Lightguide Programming unit...
Page 59 Installation sequence Electrical connection (cont.) Outdoor unit: Electrical terminal area on the underside of the appliance Fig. 44 Indoor/outdoor unit CAN bus communication cable connection Power supply Indoor/outdoor unit CAN bus communication cable (accessories) Please note Incorrectly carried out electrical installation can cause damage to the appliance.
Page 60 Installation sequence Electrical connection (cont.) CAN H CAN L Fig. 45 Note Only use cables with shielding: Connect the shielding on both sides of the connecting cable to the "GND" connection.
Page 61 Installation sequence Electrical connection (cont.) Make sure the following is observed for on-site cable: ■ Cable length: Min. 3 m Max. 30 m ■ Recommended connecting cable and further infor- mation: See chapter "Integrating a heat pump into a CAN bus system". Closing the indoor unit Danger Please note...
Page 62 Installation sequence Closing the indoor unit (cont.) Indoor unit: Fitting the front panel Fig. 46...
Page 63 Installation sequence Power supply Isolators for non-earthed conductors Consult your power supply utility, which may offer dif- ■ ■ Install an isolator in the power cable to provide ferent supply tariffs for the power circuits. omnipolar separation from the mains for all active Observe the technical connection conditions of the conductors, corresponding to overvoltage category power supply utility.
Page 64 Installation sequence Power supply (cont.) Max. cable length: 30 m ■ ■ Max. fuse rating 32 A ■ Standard tariff: No economy tariff with power-OFF facility possible Heat pump control unit power supply The mains connection is made at the 230 V~ junction box.
Page 65 Installation sequence Power supply (cont.) Instantaneous heating water heater power supply Power supply 400 V~ 5 4 3 2 1 Fig. 48 Jumpers: Do not remove! 3/N/PE 400 V/50 Hz Max. cable length: 25 m ■ ■ Recommended power cable: Max.
Page 66 Installation sequence Power supply (cont.) Power supply 230 V~ 5 4 3 2 1 Fig. 49 Jumpers: Remove 3 x 1/N/PE 230 V/50 Hz Max. cable length: 25 m ■ ■ Recommended power cable: Max. fuse rating 16 A ■ ■...
Page 67 Installation sequence Power supply (cont.) Recommended power cable: H07RN-F ■ The use of PVC cable is not permissible. ■ Do not use wire ferrules. Core wire PE must be longer than both the core wires L and N. Shield the power cable from direct sunlight. ■...
Page 68 Installation sequence Power supply (cont.) Recommended power cable: H07RN-F ■ The use of PVC cable is not permissible. ■ Do not use wire ferrules. The PE wire must be longer than the L1, L2, L3 and N wires. Shield the power cable from direct sunlight. ■...
Page 69 Installation sequence Power supply (cont.) 143.4 Heat pump compressor 143.1 Heat pump control unit power supply Premium tariff meter Ripple control receiver backup fuse 5 (400 V~) 3 (230 V~) Ripple control receiver (contact open: Power-OFF 7 (230 V~) 5 (400 V~) enabled);...
Page 70 Installation sequence Power supply (cont.) Mains power supply in conjunction with self-consumption Without power-OFF Vitocal Vitocal E1E2 D /D L1 L1 L2 L2 L3 L3 Fig. 54 Heat pump Bidirectional meter (for photovoltaic systems suita- Additional consumers (of self-generated power) in ble for self-consumption): the household Energy drawn from power supply utility and energy...
Page 71: Table Of Contents
Commissioning, inspection, maintenance Steps - commissioning, inspection and maintenance Commissioning steps Inspection steps Maintenance steps Page • 1. Compiling reports......................72 • 2. Switching on the power supply..................72 • 3. Starting the heat pump...................... 72 • 4. Commissioning the system....................72 •...
Page 72: Compiling Reports
Commissioning, inspection, maintenance Compiling reports Enter the readings taken during commissioning in the reports on page 163 onwards and the operator's log (if available). Switching on the power supply Switch on the power supply at the main MCB/fuse. Starting the heat pump Observe the following sequence: Please note Freezing can cause damage to the heat pump...
Page 73 Commissioning, inspection, maintenance Commissioning the system (cont.) Commissioning assistant Procedure Explanations and references Commissioning Language Select the required menu language for the programming unit. Commissioning tool With programming unit Commissioning is continued with the programming unit. ■ (HMI) Commissioning with The appliance automatically switches on the WiFi access point.
Page 74 Commissioning, inspection, maintenance Commissioning the system (cont.) Procedure Explanations and references System scheme Climate circuit 1 to Cli- Configuring the heating/cooling circuits mate circuit 4 Function Not available ■ ■ Heating/cooling circuit without mixer ■ Heating/cooling circuit with mixer (not for heating/cooling circuit 1) ■...
Page 75 Commissioning, inspection, maintenance Commissioning the system (cont.) Procedure Explanations and references Extensions Power-OFF and Smart Activation of power-OFF and Smart Grid: Grid Connection of floating contacts of the power supply utility (connections 143.4 and 143.5 in the 230 V~ junction box): See page 49. Not available Neither power-OFF nor Smart Grid is connected.
Page 76 Commissioning, inspection, maintenance Commissioning the system (cont.) Procedure Explanations and references Profile A Temperature/time profile 1 (in acc. with EN 1264-4) ■ ϑ/°C Profile B Temperature/time profile 2 (in acc. with ZV parquet and flooring technology) ■ ϑ/°C Profile C Temperature/time profile 3 (in acc.
Page 77: Filling The System
Commissioning, inspection, maintenance Commissioning the system (cont.) Remove these 3 labels before installing the program- Switch on the WiFi connection. Establish a connection ming unit. Apply the labels in the following positions: to the router: ■ For commissioning, affix a label to the place marked ■...
Page 78 Commissioning, inspection, maintenance Filling the system (cont.) Fill and top-up water Do not use antifreeze (e.g. water/glycol mixture) in the For further information about fill and top-up water: See heating water. technical guide "Heat pump principles". Please note We recommend filling the entire system with potable Unsuitable fill and top-up water increases the quality water first.
Page 79 Commissioning, inspection, maintenance Filling the system (cont.) Filling starts automatically, once "Filling" has been 4. Start the filling process in the commissioning assis- called up in the commissioning assistant. tant. The filling of the 1st consumer circuit begins. 1. Connect the fill hose to the 3-way ball valve in the outdoor unit flow (indoor unit heating water inlet).
Page 80: Building Up The System Pressure
Commissioning, inspection, maintenance Building up the system pressure Fig. 57 Filling the system with the filling function is completed. 6. Close the 3-way ball valve in the outdoor unit flow The "Build up system pressure" function then starts (indoor unit heating water inlet). The flow from the automatically.
Page 81: Venting The System
Commissioning, inspection, maintenance Building up the system pressure (cont.) Activate system pressure function To activate this function, start the commissioning assis- See page 77. tant. Venting the system 3. The "Venting" function ends automatically. 1. In the commissioning assistant, the "Venting" The display shows the system pressure.
Page 82 Commissioning, inspection, maintenance Opening the heat pump (cont.) Opening the indoor unit Fig. 58...
Page 83 Commissioning, inspection, maintenance Opening the heat pump (cont.) Moving the programming unit to the maintenance position To facilitate certain maintenance tasks, move the ■ programming unit up or down, depending where it is located. ■ Do not disconnect the plug from the mounting panel. Do not alter where and how the cable is secured (fix- ing point of the cable tie).
Page 84 Commissioning, inspection, maintenance Opening the heat pump (cont.) Fig. 59...
Page 85 Commissioning, inspection, maintenance Opening the heat pump (cont.) Opening the outdoor unit Fig. 60...
Page 86: Checking The Expansion Vessel And System Pressure
Commissioning, inspection, maintenance Checking the expansion vessel and system pressure Use the calculation to DIN 4807-2 to check whether 2. If the pre-charge pressure of the expansion vessel ■ the installed expansion vessel is adequate for the is lower than the static system pressure: Top up system water volume.
Page 87: Testing The Refrigerant Circuit
Commissioning, inspection, maintenance Releasing the outdoor unit transport bracket (cont.) Fig. 61 To release the transport bracket securing screw with an Allen key (size 5), turning it fully to the right. Testing the refrigerant circuit Pressure equipment in the refrigerant circuit according to Pressure Equipment Directive 2014/68/EU: Pipework PS x DN Category...
Page 88 Test the quality of the heating water: See chapter "Fill and top-up water". ■ Test the safety chain annually: Request information about the test procedure from Viessmann Technical Maintenance after max. 12 years Service. Replace the high pressure switch PSH at least every ■...
Page 89: Cleaning The Filter In The Ball Valve
Commissioning, inspection, maintenance Cleaning the filter in the ball valve 90° Fig. 62 4. Rinse the filter under running water. 5. Refit filter in reverse order (steps 3 to 1 in reverse order). Torque for the top cover: 10.0 0.5 Nm ±...
Page 90: Cleaning The Outdoor Unit Heat Exchanger (Evaporator)
Commissioning, inspection, maintenance Checking that the fan in the outdoor unit can… (cont.) Fig. 63 3. Turn the fan by hand. Torque for the screws: 0.5 Nm ± Cleaning the outdoor unit heat exchanger (evaporator) Danger Danger If you touch live components or they come into Easily flammable liquids and materials can contact with water, this can result in serious cause deflagration and fires;...
Page 91: Cleaning The Condensate Pan And Condensate Drain
Commissioning, inspection, maintenance Cleaning the outdoor unit heat exchanger… (cont.) Please note 2. Using compressed air, clean the heat exchanger Commercially available domestic cleaning from the inside out. agents and special cleaning agents can damage the heat exchanger (evaporator). Please note ■...
Page 92: Checking The Indoor Unit Electrical Connections For Firm Seating
Commissioning, inspection, maintenance Cleaning the condensate pan and condensate drain (cont.) Fig. 64 Apertures in the base plate Condensate pan Condensate drain 3. Clean the condensate pan and condensate drain. Torque for the screws: 0.5 Nm ± Checking the indoor unit electrical connections for firm seating...
Page 93: Checking The Outdoor Unit Electrical Connections For Firm Seating
Commissioning, inspection, maintenance Checking the outdoor unit electrical connections for firm seating Danger Contact with live components can lead to seri- ous injury from electric current. Some compo- nents on PCBs remain live even after the power supply has been switched off. When working on the outdoor unit, isolate the ■...
Page 94 Commissioning, inspection, maintenance Closing the heat pump (cont.) Closing the indoor unit Fig. 66...
Page 95: Checking The Heat Pump For Noise
Commissioning, inspection, maintenance Closing the heat pump (cont.) Closing the outdoor unit Fig. 67 2. Torque 5.0 +1.0 Nm Checking the heat pump for noise Check the indoor and outdoor units for unusual noise, e.g. operating noise from the fan, compressor and cir- culation pumps.
Page 96: Adjusting The Heating Curve
Commissioning, inspection, maintenance Adjusting the heating curve Tap the following buttons: "Heating curve" for the required value regarding "Slope" and "Level" respectively, depending on the system "Indoor environment" requirements 3. Select the required heating/cooling circuit, e.g. to confirm "Climate circuit 1". Naming the heating/cooling circuits In the delivered condition, the heating/cooling circuits "Rename heating/cooling circuit"...
Page 97 Troubleshooting Message display on the programming unit If there are messages pending in the system, the ■ message and are displayed. The Lightguide flashes. ■ If a central fault message facility is connected, this is switched on. Types of messages Meaning Status Operating message...
Page 98 Replace the inverter if there is a defect. Refrigerant can escape when working on the ■ Replace faulty components only with genuine refrigerant circuit. Viessmann spare parts. It is essential that regulations and guidelines ■ on handling refrigerant are always observed and adhered to: See "Safety information".
Page 99 Troubleshooting Fault messages (cont.) Message code System characteristics Cause Measures The heat pump is switched Lead break, flow tempera- Check resistance value off. ture sensor, secondary cir- (NTC 10 k ) at connec- Ω cuit / heating/cooling cir- tion X4.1/X4.2 of the EHCU elec- cuit 1 tronics module.
Page 100 Troubleshooting Fault messages (cont.) Message code System characteristics Cause Measures F.14 An outside temperature value Short circuit, outside tem- Check resistance value of 0 °C is used to calculate perature sensor (NTC 10 k ). Replace sensor if re- Ω the set flow temperature.
Page 101 Troubleshooting Fault messages (cont.) Message code System characteristics Cause Measures F.92 Function of connected com- ADIO electronics module Check the settings in the com- ■ ponents in emergency mode communication error missioning assistant. Adjust set- tings if required. Check connections on ■...
Page 102 Troubleshooting Fault messages (cont.) Message code System characteristics Cause Measures F.100 Function of the electronics Short circuit, PlusBus Check PlusBus power supply at ■ modules connected to Plus- HPMU electronics module: Iso- Bus not available late all PlusBus components con- nected.
Page 103 Troubleshooting Fault messages (cont.) Message code System characteristics Cause Measures F.117 Refrigerant circuit off Lead break, evaporator Check resistance value suction gas temperature (NTC 10 k ) at connec- Ω sensor tion X20.5/X20.6 of the VCMU re- frigerant circuit controller. Replace sensor if required.
Page 104 Troubleshooting Fault messages (cont.) Message code System characteristics Cause Measures F.156 The refrigerant circuit is Fault, electronic expan- Check electronic expansion locked. sion valve 2 valve 2. Replace expansion valve if required. F.160 No communication between CAN bus general commu- Check the CAN bus cable.
Page 105 Troubleshooting Fault messages (cont.) Message code System characteristics Cause Measures F.520 Refrigerant circuit off Communication error, Check the Modbus cable be- ■ Modbus tween inverter and refrigerant cir- cuit controller VCMU at connec- tion X11/X13 on refrigerant cir- cuit controller VCMU. Isolate the system from the pow- ■...
Page 106 Troubleshooting Fault messages (cont.) Message code System characteristics Cause Measures F.546 Mixer closes. Heating circuit Lead break, flow tempera- Check the settings in the com- ■ pump is operational. ture sensor, heating/cool- missioning assistant. Adjust set- ing circuit 3 with mixer tings if required.
Page 107 Troubleshooting Fault messages (cont.) Message code System characteristics Cause Measures F.625 Mixer closes. Heating circuit Lead break, return tem- Check the settings in the com- ■ pump switches off. perature sensor, heating/ missioning assistant. Adjust set- cooling circuit 2 tings if required. Check resistance value ■...
Page 108 Troubleshooting Fault messages (cont.) Message code System characteristics Cause Measures F.687 The heat pump is switched EHCU electronics module Check connections on EH- ■ ■ off. communication error CU electronics module. No function of connected Check whether components are ■ ■...
Page 109 Troubleshooting Fault messages (cont.) Message code System characteristics Cause Measures F.793 Reduced output, instantane- Phase L3 in power supply Check fuse for instantaneous ■ ous heating water heater of instantaneous heating heating water heater. water heater not present Check power supply on instanta- ■...
Page 110 Troubleshooting Fault messages (cont.) Message code System characteristics Cause Measures F.819 The refrigerant circuit will not Lead break, electronic ex- Check connections on VCMU re- ■ start. pansion valve 1 frigerant circuit controller. Check electronic expansion ■ valve 1 via actuator test. Isolate the system from the pow- ■...
Page 111 If the fault persists, contact the power supply utility. F.835 Refrigerant circuit off: Inverter Unsuitable inverter or in- Consult Viessmann Technical and compressor cannot be verter incorrectly program- Service. switched on. F.836 Refrigerant circuit off: Inverter Overvoltage fault on inver- Check power connection on ■...
Page 112 Troubleshooting Fault messages (cont.) Message code System characteristics Cause Measures F.847 Refrigerant circuit off: Inverter Voltage error on inverter Isolate the system from the power and compressor cannot be supply. Restart the system. switched on. If the fault persists, replace the in- verter.
Page 113 Isolate the system from the pow- ■ er supply. Shut off the hydraulic connection ■ between the indoor and outdoor unit. Notify Viessmann Werke Techni- ■ cal Service. F.876 The heat pump is switched Lead break, flow sensor Check flow sensor. Replace flow off.
Page 114 Troubleshooting Fault messages (cont.) Message code System characteristics Cause Measures F.985 The refrigerant circuit will not Control of electronic ex- Check connections on VCMU re- ■ start. pansion valve 2 faulty frigerant circuit controller. Isolate the system from the pow- ■...
Page 115 Troubleshooting Fault messages (cont.) Message code System characteristics Cause Measures F.996 No cooling of external coolant Short circuit, temperature Check the settings in the com- ■ buffer cylinder sensor of external coolant missioning assistant. Adjust set- buffer cylinder tings if required. Check resistance value ■...
Page 116 Troubleshooting Fault messages (cont.) Message code System characteristics Cause Measures F.1012 Refrigerant circuit off Fault, low pressure sensor To check the sensor, measure the voltage at the sensor or at connec- tion X14.4 to X14.6 of the VCMU refrigerant circuit controller (0 to 5 V).
Page 117 A.66 Secondary pump/heating cir- No PWM signal, secon- Use only spare parts supplied or cuit pump, heating/cooling dary pump/heating circuit approved by Viessmann. circuit 1 not running. pump, heating/cooling cir- cuit 1 Incorrect circulation pump installed A.68 Heating circuit pump, heat-...
Page 118 Troubleshooting Warning messages (cont.) Message code System characteristics Cause Measures A.75 Unusual operating noise Pressure spikes in secon- Check the expansion vessel. ■ ■ Unusual starting and opera- dary circuit Check the system pressure. Top ■ ■ tional characteristics up with water and vent if re- quired.
Page 119 Troubleshooting Warning messages (cont.) Message code System characteristics Cause Measures A.91 The refrigerant circuit is Outside temperature too No action required ■ ■ temporarily switched off low for heat pump oper- Central heating and DHW ation ■ heating only via instantane- Operation without out- ■...
Page 120 Troubleshooting Warning messages (cont.) Message code System characteristics Cause Measures A.101 Refrigerant circuit operation Values for hot gas temper- Check sensors. Replace both sen- impaired ature in relation to hot gas sors if required. pressure not plausible To check the high pressure sen- ■...
Page 121 Troubleshooting Further messages (cont.) Message code Meaning S.115 4/3-way valve in position DHW heating S.116 4/3-way valve in position heating/cooling circuit 1 S.117 4/3-way valve in position heating/cooling circuit 2 S.118 4/3-way valve in position internal buffer cylinder/bypass S.120 Smart grid: Standard mode activated S.121 Smart grid: Recommended mode activated S.122...
Page 122 Troubleshooting Further messages (cont.) Message code Meaning I.74 Inverter: Undervoltage detected in DC intermediate circuit I.75 Inverter: Excess temperature detected in internal power module I.76 Inverter: Excess temperature detected in power factor correction filter (PFC) I.77 Inverter: Excess current warning detected in power factor correction filter (PFC) I.78 Inverter: Autonomous output reduction (derating) due to excessive output-side pow- er demand...
Page 123 Troubleshooting Further messages (cont.) Message code Meaning I.123 Refrigerant circuit, max. return temperature reached I.124 Refrigerant circuit, min. return temperature reached I.125 Refrigerant circuit, max. primary inlet temperature reached I.126 Refrigerant circuit, min. primary inlet temperature reached I.127 Max. pressure differential for compressor start reached I.128 Min.
Page 124 Indoor unit maintenance Overview of electrical components See page 41 onwards. Removing the programming unit and electronics module Danger Danger Contact with live components can lead to seri- The absence of system component earthing can ous injury from electric current. Some compo- lead to serious injury from electrical current and nents on PCBs remain live even after the power component damage in the event of an electrical...
Page 125 Indoor unit maintenance Removing the programming unit and electronics… (cont.) Removing the HMI programming unit Replacing the HMI programming unit connecting cable Please note Incorrect routing of the connecting cable can lead to heat damage and impairment of the EMC properties. Position and secure the connecting cable (fixing point of the cable tie) according to the "HMI con- necting cable"...
Page 126 Indoor unit maintenance Removing the programming unit and electronics… (cont.) After replacing the HPMU electronics module, repeat the commissioning procedure: See chapter "Commis- sioning". Fig. 69 Removing the EHCU electronics module Danger Contact with live components can lead to seri- ous injury from electric current.
Page 127 Indoor unit maintenance Removing the programming unit and electronics… (cont.) Note No recommissioning is necessary following replace- ment of the EHCU electronics module. Fig. 70...
Page 128 Indoor unit maintenance Overview of internal components Fig. 71 Integrated buffer cylinder Return temperature sensor Expansion vessel 4/3-way valve High limit safety cut-out (STB), instantaneous Flow sensor heating water heater Secondary pump Pressure sensor Instantaneous heating water heater Flow temperature sensor Safety valve Draining the indoor unit on the secondary side Danger...
Page 129 Indoor unit maintenance Draining the indoor unit on the secondary side (cont.) Fig. 72 3. Set the 4/3-way valve in turn to , and until water no longer comes out. Removing hydraulic components and EPP insulating parts When replacing hydraulic components and EPP insu- Danger lating parts, first fold out or remove electrical compo- Residual water will escape when the indoor unit...
Page 130 Indoor unit maintenance Removing hydraulic components and EPP… (cont.) Overview of torque settings for assembly Union nuts: Please note 1 Nm Filling and venting the system with the transport ½ ± 2 Nm bracket loose can cause damage to the outdoor ¼...
Page 131 Indoor unit maintenance Removing hydraulic components and EPP… (cont.) Removing the integrated buffer cylinder 50 ±2 Nm Fig. 73...
Page 132 Indoor unit maintenance Removing hydraulic components and EPP… (cont.) Removing hydraulic lines from the integral buffer cylinder Removing the hydraulic line at the front 50 ±2 Nm Fig. 74...
Page 133 Indoor unit maintenance Removing hydraulic components and EPP… (cont.) Removing the hydraulic line at the back 50 ±2 Nm Fig. 75...
Page 134 Indoor unit maintenance Removing hydraulic components and EPP… (cont.) Removing the expansion vessel ~25° 12 ±1 Nm 3.5 +0.5 Nm Fig. 76 3. Only required for the removal of the hydraulic block...
Page 135 Indoor unit maintenance Removing hydraulic components and EPP… (cont.) Removing the instantaneous heating water heater Fig. 77 Torque for the screws on the 230 V~ junction box: 2.8 Nm...
Page 136 Indoor unit maintenance Removing hydraulic components and EPP… (cont.) Fig. 78...
Page 137 Indoor unit maintenance Removing hydraulic components and EPP… (cont.) Removing the sensors Removing the flow sensor 70 ±2 Nm Fig. 79...
Page 138 Indoor unit maintenance Removing hydraulic components and EPP… (cont.) Removing the secondary circuit temperature sensors Fig. 80...
Page 139 Indoor unit maintenance Removing hydraulic components and EPP… (cont.) Removing the pressure sensor Fig. 81...
Page 140 Indoor unit maintenance Removing hydraulic components and EPP… (cont.) Removing the circulation pump head Fig. 82 Torque settings ■ Torque settings for the circuit pump union nuts: 2 Nm ± ■ Torque for the screws on the pump head: 1 Nm ±...
Page 141 Indoor unit maintenance Removing hydraulic components and EPP… (cont.) 2.8 ±0.3 Nm Fig. 83 Removing the additional EPP insulation pieces After removal of the hydraulic block, all other EPP installation pieces can be replaced.
Page 142 Indoor unit maintenance Removing hydraulic components and EPP… (cont.) Fig. 84 Status display, internal circulation pump Meaning Flashes green. Normal operation, circulation pump runs on demand. Illuminates Circulation pump runs continuously ■ green. with maximum output, e.g. when the PWM signal is interrupted. No fault message ■...
Page 143 Indoor unit maintenance Checking the temperature sensors Temperature sensor NTC 10 k Connection Ω Outside temperature sensor 6-pole connection socket on the underside of the ap- ■ ■ pliance, terminals 11 and 12 Plug 1 on the HPMU electronics module ■...
Page 144 Indoor unit 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...
Page 145 Indoor unit maintenance Checking the pressure sensors 0.45 Pressure Fig. 86 Checking the fuse Fuse F1 is located in the HPMU electronics module: 1. Switch off the power supply. See page 51. 2. Open the HPMU electronics module. Fuse type: ■...
Page 146 Fig. 87 Terminal strip, 400 V~ power supply Terminal strip, 230 V~ power supply Checklist for maintenance work Note Work on the refrigerant circuit must only be carried out by Viessmann Technical Services employees.
Page 147 Outdoor unit maintenance Checklist for maintenance work (cont.) Every person working on the refrigerant circuit must ■ be able to produce a certificate of competence issued by an organisation with industry accreditation. This certificate confirms their competence in the safe handling of refrigerants by means of a standard industry procedure.
Page 148 & Any replacement electrical components must be suitable for the ■ application and must correspond to the manufacturer’s specifi- cation. Only replace faulty components with genuine Viessmann spare parts. Carry out all component replacements in accordance with Viess- ■ mann guidelines. If required, consult Viessmann Technical Serv- ice.
Page 149 In areas where flammable atmospheres exist, only apply voltage ■ to components which are suitable for flammable atmospheres. Only use Viessmann original parts or parts approved by Viess- ■ mann. Other parts may result in refrigerant becoming ignited in the event of a leak.
Page 150 Outdoor unit maintenance Checklist for maintenance work (cont.) Measure Completed Comments Leak detection The following leak detection processes are suitable for appliances with flammable refrigerant: Leak detection with electronic refrigerant detectors: Electronic refrigerant detectors may not have the required sensi- ■...
Page 151 Outdoor unit maintenance Overview of internal components Danger Contact with live components can lead to seri- ous injury from electric current. Some compo- nents on PCBs remain live even after the power supply has been switched off. When working on the outdoor unit, isolate the ■...
Page 152 Outdoor unit maintenance Overview of internal components (cont.) Fig. 88 Hot gas temperature sensor Evaporator Compressor Air intake temperature sensor Electronic expansion valve 1 Interior temperature sensor Oil sump temperature sensor Accumulator Compressor temperature sensor, compressor Liquid gas temperature sensor, cooling Schrader valve, high pressure side 2 Schrader valve, low pressure side Ball valve with filter...
Page 153 Outdoor unit maintenance Refrigerant circuit flowchart Labelling of the sensors in acc. with EN 1861: Flow rates: High pressure sensor ■ Secondary side (heating water) Min. flow rate: 0.350 m /h (350 l/h) Max. flow rate: 2.050 m /h (2050 l/h) Low pressure sensor Primary side (air) ■...
Page 154 Outdoor unit maintenance Refrigerant circuit flowchart (cont.) Accumulator Electronic expansion valve 2 Schrader valve, low pressure side Liquid gas temperature sensor, cooling Suction gas temperature sensor, compressor Filter, electronic expansion valve 2 Low pressure sensor Cooling mode Fig. 90 Evaporator Inverter temperature sensor Air discharge Suction gas temperature sensor, evaporator...
Page 155 Outdoor unit maintenance Extracting the refrigerant Before commencing work, note the "Checklist for main- 06. Extract the refrigerant from all parts of the refriger- tenance work" on page 146 onwards. ant circuit using the extraction equipment. Also take into account the following points: Note ■...
Page 156 Outdoor unit maintenance Extracting the refrigerant (cont.) 14. Affix a label to the outdoor unit in a clearly visible position, containing the following information, with date and signature: ■ Outdoor unit works with flammable refrigerant R290 (propane). System has been taken out of use. ■...
Page 157 Outdoor unit maintenance Filling the refrigerant circuit (cont.) 6. Affix a label to the heat pump in a clearly visible 8. Seal the sealing cap of the low pressure Schrader position, containing the following information, with valve: See "Outdoor unit maintenance: Overview of date and signature: internal components".
Page 158 Outdoor unit maintenance Removing the hydraulic components Before dismantling hydraulic components from the Note outdoor unit, empty the hydraulic connection lines to For some parts: See separate installation instructions the indoor unit. for the part. Removing the float air vent valve with quick-action air vent valve G 1¼...
Page 159 Outdoor unit maintenance Removing the hydraulic components (cont.) Removing the ball valve with filter G 1¼ 50 ±2 Nm Fig. 93...
Page 160 Outdoor unit maintenance Checking the temperature sensors Temperature sensors are connected to the VCMU refrigerant circuit controller in the outdoor unit. Temperature sensor NTC 10 k Connection Ω Air intake temperature sensor Position of the temperature sensor: See chapter "Out- ■...
Page 161 Outdoor unit 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 162 Outdoor unit maintenance Checking the pressure sensors Pressure Fig. 94 Low pressure sensor High pressure sensor Checking the fuses The fuses are located next to the VCMU refrigerant cir- 1. Switch off the power supply. cuit controller: See page 146. 2.
Page 163 Commissioning/service reports Commissioning/service reports Hydraulic parameter report Settings and test values Set value Commissioning Maintenance/ service Checking external heating circuit pumps Circulation pump type Circulation pump stage Primary circuit commissioning Air intake temperature °C Air discharge temperature °C Temperature differential (air intake/ discharge) Δ...
Page 164 Specification Specification Heat pumps with 400 V~ outdoor unit Type AWO-E-AC/AWO-E-AC-AF 151.A10 151.A13 151.A16 Heating performance data to EN 14511 (A2/W35) Rated heating output Power consumption 1.41 1.76 2.00 Coefficient of performance (COP) in heating ε mode Output control 2.2 to 11.0 2.6 to 12.3 3.0 to 13.7 Heating performance data to EN 14511 (A7/W35, 5 K...
Page 165 Specification Specification (cont.) Type AWO-E-AC/AWO-E-AC-AF 151.A10 151.A13 151.A16 Indoor unit electrical values Rated voltage 1/N/PE 230 V/50 Hz ■ Power supply fuse protection 1 x B16A 1 x B16A 1 x B16A ■ Internal fuse protection 6.3 A H (slow)/250 V~ ■...
Page 166 Specification Specification (cont.) Type AWO-E-AC/AWO-E-AC-AF 151.A10 151.A13 151.A16 Outdoor unit dimensions Total length Total width 1144 1144 1144 Total height 1382 1382 1382 Indoor unit dimensions Total length Total width Total height Total weight Indoor unit Empty ■ Filled (max.) ■...
Page 167 Specification Specification (cont.) Heat pumps with 230 V~ outdoor unit Type AWO-M-E-AC/AWO-M-E-AC-AF 151.A10 151.A13 151.A16 Heating performance data to EN 14511 (A2/W35) Rated heating output Power consumption 1.41 1.76 2.00 Coefficient of performance (COP) in heating ε mode Output control 2.2 to 11.0 2.6 to 12.3 3.0 to 13.7...
Page 168 Specification Specification (cont.) Type AWO-M-E-AC/AWO-M-E-AC-AF 151.A10 151.A13 151.A16 Indoor unit electrical values Rated voltage 1/N/PE 230 V/50 Hz ■ Power supply fuse protection 1 x B16A 1 x B16A 1 x B16A ■ Internal fuse protection 6.3 A H (slow)/250 V~ ■...
Page 169 Specification Specification (cont.) Type AWO-M-E-AC/AWO-M-E-AC-AF 151.A10 151.A13 151.A16 Outdoor unit dimensions Total length Total width 1144 1144 1144 Total height 1382 1382 1382 Indoor unit dimensions Total length Total width Total height Total weight Indoor unit Empty ■ Filled (max.) ■...
Page 170 Specification Specification (cont.) Heat pumps with 230 V~ outdoor unit Type AWO-M-E-AC/AWO-M-E-AC-AF 151.A10 SP 151.A13 SP 151.A16 SP Heating performance data to EN 14511 (A2/W35) Rated heating output Power consumption 1.41 1.76 2.00 Coefficient of performance (COP) in heating ε mode Output control 2.2 to 11.0...
Page 171 Specification Specification (cont.) Type AWO-M-E-AC/AWO-M-E-AC-AF 151.A10 SP 151.A13 SP 151.A16 SP Indoor unit electrical values Rated voltage 1/N/PE 230 V/50 Hz ■ Internal fuse protection 6.3 A H (slow)/250 V~ ■ Instantaneous heating water heater Heating output ■ Power supply, indoor unit Rated voltage 1/N/PE 230 V/50 Hz ■...
Page 172 Specification Specification (cont.) Type AWO-M-E-AC/AWO-M-E-AC-AF 151.A10 SP 151.A13 SP 151.A16 SP Outdoor unit dimensions Total length Total width 1144 1144 1144 Total height 1382 1382 1382 Indoor unit dimensions Total length Total width Total height Total weight Indoor unit Empty ■...
Page 173 Preferred appointment: Date Time Date Time The work requested from Viessmann will be billed to me/us in accordance with the latest Viessmann pricelist. Place/date Signature Final decommissioning and disposal Viessmann products can be recycled. Components Isolate the system from the power supply for decom- and substances from the system are not part of ordi- missioning.
Page 174 Appendix Final decommissioning and disposal (cont.) Decommissioning: If the outdoor units dismantled for disposal are not ■ ■ Positioning requirements apply only so long as the stored in accordance with the positioning require- outdoor unit is filled with refrigerant: See page 17. ments, the following steps must be carried out: ■...
Page 175 Certificates Declaration of conformity We, Viessmann Climate Solutions SE, D-35108 Allen- dorf, declare as sole responsible body that the named product complies with the European directives and supplementary national requirements in terms of its design and operational characteristics. Viessmann Cli-...
Page 176 Keyword index Keyword index Connection Accumulator............. 154 – Electric..............39 Air discharge.............. 24 – Electrical components..........39 Air intake..............24 – Overview..............15 Air intake temperature......164, 167, 170 – Secondary circuit.............35 Air intake temperature sensor......153, 154 Connection, indoor/outdoor unit......... 59 Air short circuit............
Page 177 Keyword index Keyword index (cont.) Energy efficiency class......166, 169, 172 Heating water flow......35, 166, 169, 172 EPP insulating parts..........129 Heating water return......35, 166, 169, 172 EPP insulation pieces..........141 Heat pump Evaporator..........152, 153, 154 – Checking for noise..........95 Expansion vessel..........86, 134 –...
Page 178 Keyword index Keyword index (cont.) Overview Junction box............... 43 – Electrical connections........124, 146 – Electrical terminal areas..........41 – Internal components........128, 151 Leak detection............150 – Pumps............128, 151 Leak detection devices..........149 – Sensors............128, 151 Leak detection processes........150 – Valves............128, 151 Leak test..............129 Oxygen-free nitrogen........
Page 179 Keyword index Keyword index (cont.) Refrigerant charge........... 148 Static vacuum test............155 Refrigerant circuit....... 13, 165, 168, 171 Status messages............120 – Filling.............150, 156 Subscriber number of connected component.... 98 – Testing..............87 Suction equipment........... 155 Refrigerant collector......... 153, 154 Suction gas temperature sensor...... 153, 154 Refrigerant detector.........
Page 180 Keyword index (cont.) Wind direction............20 Wiring............... 149 Wind loads..............20 Working environment..........147 Viessmann Climate Solutions SE Viessmann Limited 35108 Allendorf / Germany Hortonwood 30, Telford Telephone: +49 6452 70-0 Shropshire, TF1 7YP, GB Fax: +49 6452 70-2780 Telephone: +44 1952 675000 www.viessmann.com...

Viessmann VITOCAL 150-A Installation And Service Instructions Manual

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