Viessmann AWBT 221.C10, Installation And Service Instructions For Contractors

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1. Information Disposal of packaging ............................................................................ 6
Symbols ................................................................................................. 6
Intended use .......................................................................................... 6
Product information ................................................................................ 7
2. Preparing for installation Requirements for on-site connections ................................................... 9
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Indoor unit ........................................................................................... 9
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Outdoor unit ........................................................................................ 10
3. Installation sequence Installing the outdoor unit ....................................................................... 12
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Installation information ........................................................................ 12
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Installation location ............................................................................. 13
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Outdoor unit minimum clearances ...................................................... 14
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Transport and siting ............................................................................ 15
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Floorstanding installation .................................................................... 15
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Wall mounting ..................................................................................... 17
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Opening the wiring chamber ............................................................... 19
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Removing the transport brackets ........................................................ 19
Installing the indoor unit ......................................................................... 20
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Transport ............................................................................................ 20
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Requirements for the installation room ............................................... 20
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Minimum clearances ........................................................................... 21
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Minimum room height ......................................................................... 22
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Pressure points ................................................................................... 22
Connecting the refrigerant lines ............................................................. 23
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Oil lift bends ........................................................................................ 23
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Wall outlet ........................................................................................... 24
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Routing the refrigerant lines ............................................................... 24
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Insulation against noise and vibrations for line entry above ground
level .................................................................................................... 25
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Connection to the outdoor unit ........................................................... 26
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Connection to the indoor unit .............................................................. 27
Connecting the secondary circuit ........................................................... 28
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Preparing connections on the heating water side ............................... 28
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Preparing the connections on the DHW side ...................................... 29
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Connecting the secondary side .......................................................... 30
Aligning the appliance ............................................................................ 31
Type AWBT(-M)-E-AC only: Connecting the cooling circuit ................... 31
Removing the front panels ..................................................................... 32
Electrical connection .............................................................................. 33
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Preparing the electrical connections ................................................... 33
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Indoor unit: Routing cables to the wiring chamber ............................. 35
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Connecting the Vitoconnect (accessories) ......................................... 36
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Indoor unit: Overview of connections ................................................. 38
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Indoor unit: Main PCB (230 V~ components) ..................................... 39
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Indoor unit: Expansion PCB on main PCB (230 V~ components) ...... 41
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Indoor unit: Luster terminals (signal and safety connections) ............ 43
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Indoor unit: Controller and sensor PCB (LV connections) .................. 44
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Outdoor unit: Routing cables to the wiring chamber ........................... 46
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Outdoor unit: Overview of electrical connections ............................... 47
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Connecting the bus cable between the indoor and outdoor unit ........ 48
Power supply ......................................................................................... 49
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Heat pump control unit power supply 230 V~ ..................................... 50
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Outdoor unit power supply .................................................................. 50
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Instantaneous heating water heater power supply ............................. 52
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Power supply with power-OFF: Without on-site load disconnection ... 54
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Power supply with power-OFF: With on-site load disconnection ........ 54
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Mains power supply in conjunction with on-site power consumption . 56
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Smart Grid .......................................................................................... 56
Index
Index
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17 700 GB