Viessmann VITOCAL 242-S Installation And Service Instructions Manual page 163

Keyword index
Sealing the appliance.........................23
Seal washers.....................................72
Secondary circuit
– Filling and venting...........................71
Secondary circuit, connecting............34
Secondary circuit, filling.....................36
Secondary circuit, filling and venting..72
Secondary circuit, venting..................36
Secondary circuit connection set. 35, 36
Secondary circuit return temperature
sensor................................................91
Secondary pump................................91
Secure refrigerant lines......................31
Selecting the parameter group...........80
Sensors........................................90, 92
Service...............................................65
Service menu
– Calling up........................................80
– Disabling.........................................80
– Enabling..........................................80
Service valve
– External unit..................66, 67, 69, 70
– Internal unit.....................................91
Setting parameters.............................80
Short circuit between magnesium anode
and indirect coil............................74, 75
Side cover, external unit....................62
Side panels........................................23
Siting..................................................13
– Between walls.................................11
– Conditions.......................................10
– External unit....................................14
– Freestanding...................................10
– In recesses.....................................11
Solar circuit........................................73
Solar circuit connection......................38
Solar circuit filling and venting...........73
Solar circuit flow...................8, 149, 153
Solar circuit flow temperature sensor
– Curve..............................................96
Solar circuit pump
– Connection.....................................45
Solar circuit return................8, 149, 153
(cont.)
Solar circuit return temperature sen-
sor................................................49, 91
Solar thermal system
– Parameter settings.........................84
Sound insulation................................15
Sound insulation mat.........................62
Sound power............................149, 153
Sound propagation.............................11
Sound reflections...............................11
Spare parts
– External unit, type AWT-AC
241.A04........................................113
– External unit, type AWT-AC
241.A07........................................116
– External unit, type AWT-AC 241.A10,
A13...............................................120
– External unit, type AWT-AC 241.B10,
B13...............................................128
Spare parts, casing
– External unit, type AWT-AC 241.A10,
A13...............................................121
– External unit, type AWT-AC 241.B10,
B13...............................................129
– Internal unit...................................103
Spare parts, DHW cylinder
– Internal unit...................................111
Spare parts, electrical equipment
– External unit, type AWT-AC 241.A10,
A13...............................................123
– External unit, type AWT-AC 241.B10,
B13...............................................131
– Internal unit...................................105
Spare parts, external
unit...........................113, 116, 119, 127
Spare parts, hydraulics
– External unit, type AWT-AC 241.A10,
A13...............................................125
– External unit, type AWT-AC 241.B10,
B13...............................................133
– Internal unit...................................108
Spare parts, internal unit..................102
Specification.............................145, 149
Standard tariff....................................55
Keyword index
163