Viessmann Vitocal 242-S Installation And Service Instructions Manual page 144

Keyword index
Keyword index
Connection
■ BUS cable.......................................58
■ Cooling circuit.................................45
■ DHW...............................................44
■ Electrical components....................45
■ Overview...........................................7
■ Preparing..........................................8
■ Refrigerant lines.............................33
■ Secondary circuit......................41, 43
■ Solar circuit.....................................45
Connection, internal/external unit......58
Connection conditions
■ Power supply utility.........................65
Connection set, secondary circuit 42, 43
Connections on the DHW side...........44
Connection values
■ 230 V~ function components..........50
■ Circulation pumps.....................50, 53
■ DHW circulation pump....................52
■ Function components 230 V~.........53
■ Heating circuit pump.......................51
■ Solar circuit pump...........................52
Contact humidistat.......................14, 45
Contact humidistat, connecting..........55
Contact thermostat.............................14
Controller and sensor PCB..........50, 55
Control parameter reports................128
Cooling...............................................51
Cooling circuit
■ Specification.................................138
Cooling control...................................51
Cooling function.................................14
Cooling water flow..............................45
Copper seal ring.................................40
Corrosion damage.......................80, 81
Cover of external unit, fitting..............68
Curve
■ NTC temperature sensors............105
■ Temperature sensor type Pt 500A104
Curves of the sensors......................102
Cylinder
■ Drain & fill valve..............................98
■ Specification.................................139
144
(cont.)
Cylinder, cleaning..............................79
Cylinder assembly
■ Internal unit...................................115
Cylinder drain & fill valve....................97
Cylinder module, fitting......................31
Cylinder module removal...................25
D
Daily log.............................................71
Data.................................................136
Declaration of Conformity................142
Defrosting...........................................18
Designations for system examples....11
DHW circulation connection.........8, 140
DHW circulation pump.................44, 87
DHW connection......................7, 8, 140
DHW heating
■ With solar thermal system..............13
Diaphragm grommet....................31, 43
Dimensions..........................................7
■ External unit..................................139
■ Internal unit...................................139
Directives for work on the refrigerant cir-
cuit.....................................................76
Diverter valve...............14, 99, 100, 101
Door, opening....................................41
Drain & fill valve.................................98
Drain & fill valve, secondary circuit....97
Draining secondary circuit................102
Drain valve.........................................44
Drinking water filter............................44
E
Economy tariff........................62, 63, 64
Economy tariff meter....................65, 67
Electrical connection
■ Circulation pumps.....................50, 53
■ External unit....................................59
■ Temperature sensors.....................55
Electrical connections, overview........94