Viessmann VITOCAL 222-S Installation And Service Instructions Manual page 133

Keyword index
(cont.)
Pressure check.......................................................... 49
Pressure gauge..........................................................29
Pressure gauge connection....................................... 30
Pressure gauge set.................................................... 51
Pressure reducer........................................................30
Pressure sensor......................................................... 69
Product information...................................................... 6
Protective gloves........................................................52
Pumps.................................................................. 68, 69
Q
Quick-action air vent valve................................... 29, 53
R
Radio clock receiver...................................................37
RCD........................................................................... 44
Recommended power cables.......................................8
Reducer, connecting.................................................. 27
Refrigerant..................................................... 22, 51, 52
– Properties................................................................52
– Safety instructions...................................................52
– Skin contact.............................................................51
Refrigerant charge..................................................... 52
Refrigerant circuit............................................. 121, 124
– Charging..................................................................51
– Evacuating.............................................................. 50
– Tightness test.......................................................... 52
Refrigerant lines
– Connecting.............................................................. 22
– Connection........................................................ 24, 25
– Fitting oil lift bends.................................................. 22
– Line lengths.......................................................22, 51
– Nuts, removing........................................................ 26
– Nuts, sliding on........................................................27
– Purging....................................................................49
– Securing.................................................................. 26
– Union nuts, sliding on..............................................24
– Union nuts, undoing................................................ 24
Refrigerant properties................................................ 52
Remote control.....................................................37, 61
Removing programmining unit cover......................... 67
Repair work................................................................ 49
Replacing magnesium anode.....................................55
Reports............................................................. 112, 113
Reports, compiling..................................................... 49
Reset button...............................................................64
Residual current device..............................................40
Return temperature sensor, secondary circuit..... 68, 73
Ribbon heater.............................................................10
Ripple control receiver......................................... 44, 45
Room height...............................................................14
Room temperature sensor......................................... 73
Room temperature sensor, cooling circuit..................37
Room volume............................................................. 14
Routing cables........................................................... 32
Rubber mounts.....................................................10, 13
S
Safety assembly.........................................................29
Safety chain............................................................... 37
Safety connections.....................................................36
Safety goggles........................................................... 52
Safety instructions, refrigerant................................... 52
Safety valve..........................................................29, 30
Sealing faces..............................................................20
Seal rings, replacing.............................................29, 53
Secondary circuit
– Filling and venting................................................... 52
Secondary circuit, connecting.................................... 28
Secondary circuit, filling and venting..........................53
Secondary circuit connection..................................... 29
Secondary circuit connection set............................... 28
Secondary pump........................................................ 68
Sensors................................................................ 68, 69
Sensors, checking......................................................73
Service menu
– Activating.................................................................59
– Calling up................................................................ 59
– Deactivating............................................................ 59
Service termination.................................................... 59
Service valve
– External unit................................................ 50, 51, 52
– Internal unit............................................................. 68
Short circuit magnesium anode:internal indirect
coil........................................................................55, 56
Side cover, external unit.............................................47
Signal connections..................................................... 36
Siting
– Between walls......................................................... 11
– Conditions............................................................... 10
– External unit............................................................ 13
– Freestanding........................................................... 10
– In recesses.............................................................. 11
Smart Grid............................................................46, 64
Sound insulation.........................................................13
Sound insulation mat..................................................47
Sound power.................................................... 122, 126
Sound propagation..................................................... 11
Sound reflections........................................................11
Spare parts
– External unit, type AWT/AWT-AC 221.A04............. 90
– External unit, type AWT/AWT-AC 221.A05/A07......94
– External unit, type AWT/AWT-AC 221.A10/A1397, 98
– External unit, type AWT/AWT-AC 221.B10/B13/
B16........................................................................105
Spare parts, casing
– External unit, type AWT/AWT-AC 221.B10/B13/
B16........................................................................106
Spare parts, DHW cylinder
– Internal unit............................................................. 86
Spare parts, electrical equipment
– External unit, type AWT/AWT-AC 221.A10/A13....100
– External unit, type AWT/AWT-AC 221.B10/B13/
B16........................................................................108
– Internal unit............................................................. 80
Spare parts, external unit....................... 89, 93, 97, 105
Spare parts, hydraulic
– Internal unit............................................................. 82
Keyword index
133