Viessmann VITOCAL 222-S Installation And Service Instructions Manual page 147

Type awt-ac 221.a04 to a13 compact heat pumps, split version for heating and cooling operation
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Keyword index
Power cable...................................9, 62
■ External unit....................................63
■ Heat pump control unit...................48
■ Instantaneous heating water heater64
■ Switching module for instantaneous
heating water heater.......................48
Power-OFF..................................63, 64
■ Floating contact connection............54
■ Power supply with load disconnec-
tion..................................................66
■ Without on-site load disconnection.65
Power-OFF contact..............................9
Power-OFF signal..............................65
Power supply
■ Compressor....................................59
■ External unit..............................16, 63
■ General information........................61
■ Heating water heat pump control
unit..................................................55
■ Heat pump control unit.......62, 65, 66
■ Instantaneous heating water
heater.................................16, 50, 64
■ Internal unit.....................................16
■ Recommended power cables...........9
■ With own energy consumption.......67
■ With power-OFF.............................65
Pre-charge pressure in expansion ves-
sel, checking......................................77
Pressure, checking............................79
Pressure gauge..................................43
Pressure gauge connection...............44
Pressure gauge set............................74
Pressure load.....................................23
Pressure reducer...............................44
Pressure sensor.................................98
Pressure test......................................69
Protective gloves....................72, 75, 76
Pumps....................................88, 97, 99
Q
Quick-action air vent valve...........43, 78
(cont.)
R
Radiator heating circuit......................14
RCD...................................................65
Recommended power cables..............9
Reducer, connecting..........................40
Refrigerant ..................................32, 75
■ Filling capacity................................75
■ Properties.......................................76
■ Safety instructions..........................76
■ Skin contact..............................72, 75
Refrigerant circuit
■ Tightness test.................................76
Refrigerant circuit evacuation............72
Refrigerant line
■ Installing oil lift bends.....................32
Refrigerant lines...................................8
■ Line length......................................33
■ Line lengths....................................75
■ Nuts, mounting...............................40
■ Nuts, removing...............................38
■ Undoing union nuts.........................35
■ Union nuts, mounting......................35
Refrigerant lines, connecting. 32, 34, 36
Refrigerant lines, securing.................38
Refrigerant lines evacuation..............72
Refrigerant properties........................76
Remote control...................................88
Removing magnesium anode............82
Removing programmining unit cover. 96
Repairs...............................................95
Repair work........................................71
Replacing the magnesium anode......82
Replacing union nuts.........................35
Report
■ Control parameters.......................128
Reports............................................128
Reports, compiling.............................71
Required parameter settings
■ For system scheme........................16
Reset button
■ For instantaneous heating water
heater.............................................93
Keyword index
147

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