150
External unit
■ Cable lengths....................................9
■ Checking electrical connections.....75
■ Cleaning.........................................74
■ Closing............................................60
■ Dimensions...........................140, 144
■ Electrical connections.....................49
■ Electrical values....................138, 143
■ Fill valve....................................65, 67
■ Installation......................................10
■ Internal components.......................91
■ Power cable......................................9
■ Power supply..................................54
■ Refrigerant lines.............................25
■ Service valve............................65, 67
■ Siting...............................................13
■ Wall mounting.................................14
■ Weight..................................141, 144
External unit electrical connections,
checking.............................................75
External unit installation.....................10
F
Fan.........................................92, 93, 94
Fan, checking.....................................74
Fill hose..............................................67
Filling
■ Refrigerant circuit...........................66
■ Secondary circuit............................68
Fill valve.......................................65, 67
■ External unit....................................67
Fill water.............................................68
Flanged adaptors...............................28
Floor load...........................................14
Floor mounting
■ External unit....................................13
Floor unevenness..............................14
Flow, DHW cylinder/heating water.....32
Flow regulating valve.........................35
Flow switch........................................45
Flow temperature sensor, cooling cir-
cuit.....................................................95
Flow temperature sensor, secondary cir-
cuit.....................................................95
Flow temperature sensor, system......95
Free running of the fan, check for......74
Freestanding siting.............................11
Frost stat connection..........................46
Function check...................................85
Function components 230 V~............39
Function components 230 V~......41, 44
Fuse
■ AVI PCB...................................41, 49
■ Function components 230 V~.........41
■ Heat pump control unit...................41
Fuse, checking...................................97
Fuse F1..............................................97
Fuse F101..........................................97
Fuse F3..............................................97
Fuse protection
■ Power supply, external unit......54, 55
Fuse rating
■ Power supply for instantaneous heat-
ing water heater..............................56
G
Gravel bed
■ As condensate drain.......................14
H
Heat exchanger cleaning...................74
Heating circuit pump..........................81
Heating output, compressor...............79
Heating water flow. . .8, 32, 33, 141, 145
Heating water return 8, 32, 33, 141, 145
Heat pump, starting............................76
Heat pump control unit power cable....9
Height differential
■ Internal unit-external unit................24
High limit safety cut-out, resetting......85
High pressure fault.............................10
High tariff meter...........................57, 58
Hot gas line. .8, 24, 26, 28, 65, 141, 145
■ Torque......................................27, 31
Keyword index
Keyword index
(cont.)
5782 201 GB
