Viessmann Vitocal 242-S Installation And Service Instructions Manual page 149

Keyword index
R
Radiator heating circuit......................14
RCD...................................................65
Recommended power cables..............9
Reducer, connecting..........................40
Refrigerant ..................................33, 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.....................33
Refrigerant lines...................................8
■ Line length......................................33
■ Line lengths....................................75
■ Mounting nuts.................................36
■ Nuts, mounting...............................40
■ Nuts, removing...............................38
■ Undoing nuts..................................36
Refrigerant lines, connecting. 33, 35, 36
Refrigerant lines, securing.................38
Refrigerant lines evacuation..............72
Refrigerant properties........................76
Remote control...................................87
Removing magnesium anode............81
Removing programmining unit cover. 95
Repairs...............................................94
Repair work........................................71
Replacing the magnesium anode......81
Replacing union nuts.........................36
Report
■ Control parameters.......................128
Reports............................................128
Reports, compiling.............................71
Required parameter settings
■ For system scheme........................17
Reset button
■ For instantaneous heating water
heater.............................................92
(cont.)
Return temperature sensor, secondary
circuit................................................102
Ripple control receiver.................65, 66
Room height.......................................23
Room temperature sensor...............102
Room volume.....................................24
Rubber mounts..................................23
S
Safety assembly.................................43
Safety assembly, installation..............43
Safety chain.......................................55
Safety connections.............................53
Safety goggles.......................72, 75, 76
Safety instructions
■ Refrigerant......................................76
Safety valve.................................43, 44
Scheme................................................9
Sealing faces.....................................31
Sealing tape
■ For side panels...............................31
Sealing the appliance.........................31
Seal rings
■ Checking seating............................78
Secondary circuit, connection......41, 43
Secondary circuit, filling.....................43
Secondary circuit, filling and vent-
ing................................................77, 78
Secondary circuit, venting..................43
Secondary pump................................13
Selecting the parameter group...........86
Sensors........................................96, 98
Service menu
■ Calling up........................................86
■ Disabling.........................................86
■ Enabling..........................................86
Service valve
■ External unit........................72, 73, 75
■ Internal unit.....................................97
Setting parameters.............................86
Short circuit between magnesium anode
and indirect coil............................80, 81
Keyword index
149