Viessmann VITOCAL 242-S Installation And Service Instructions Manual page 162

Keyword index
Keyword index
Power supply
– Compressor....................................52
– External unit....................................56
– General information........................54
– Heating water heat pump control
unit..................................................48
– Heat pump control unit.......55, 59, 60
– Instantaneous heating water
heater.......................................43, 58
– With power-OFF.............................59
Pre-charge pressure checking expan-
sion vessel.........................................71
Premium tariff meter....................59, 60
Pressure, checking............................73
Pressure gauge..................................36
Pressure gauge connection...............37
Pressure gauge set............................68
Pressure load.....................................15
Pressure reducer...............................37
Pressure sensor.................................91
Pumps....................................82, 90, 92
Q
Quick-action air vent valve...........36, 72
R
Radio clock receiver...........................48
RCD.............................................54, 59
Recommended power cables..............9
Reducer, connecting..........................33
Refrigerant...................................24, 69
– Properties.......................................70
– Safety instructions..........................70
– Skin contact..............................66, 69
Refrigerant charge.............................69
Refrigerant circuit.....................147, 152
– Charging.........................................69
– Evacuating......................................66
– Tightness test.................................70
162
(cont.)
Refrigerant lines...................................8
– Fitting oil lift bends..........................24
– Line lengths..............................25, 69
– Mounting nuts.................................28
– Nuts, mounting...............................33
– Nuts, removing...............................31
– Undoing nuts..................................28
Refrigerant lines, connecting. 24, 28, 29
Refrigerant properties........................70
Remote control.............................49, 82
Removing magnesium anode............75
Removing programmining unit cover. 89
Repairs...............................................88
Repair work........................................65
Replacing the magnesium anode......75
Replacing union nuts.........................29
Reports............................................135
Reports, compiling.............................65
Return temperature sensor, secondary
circuit..................................................96
Return temperature sensor, solar cir-
cuit...................................................106
Ribbon heater....................................10
Ripple control receiver.................59, 60
Room height.......................................15
Room temperature sensor.................96
Room temperature sensor, cooling cir-
cuit.....................................................48
Room volume.....................................16
Routing cables...................................40
Routing cables into unit......................40
Rubber mounts............................10, 15
S
Safety assembly.................................36
Safety assembly, fitting......................36
Safety chain.......................................48
Safety connections.............................46
Safety instructions, refrigerant...........70
Safety valve.................................36, 37
Sealing faces.....................................23
Sealing surfaces................................23
Sealing tape.......................................23