Viessmann Vitocal 242-S Installation And Service Instructions Manual page 129

Keyword index
A
Air discharge...............................................................11
Air discharge grille removal........................................55
Air intake.....................................................................11
Air short circuit............................................................11
Air vent valve, secondary circuit.................................68
Ambient temperatures................................................14
Anode earth current................................................... 55
Anode tester...............................................................55
Anti-vibration mounts................................................. 10
Appliance, starting......................................................57
Appliance fuses, checking..........................................75
Appliance sealing....................................................... 21
Appliance start-up...................................................... 57
Area cooling system...................................................30
Assembly....................................................................21
– External unit, type AWT/AWT-AC 241.A04............. 90
– External unit, type AWT/AWT-AC 241.A05/A07......94
– External unit, type AWT/AWT-AC 241.A10/A13......97
– External unit, type AWT/AWT-AC 241.B10/B13/
B16........................................................................105
Assembly, casing
– External unit, type AWT/AWT-AC 241.A10/A13......98
– External unit, type AWT/AWT-AC 241.B10/B13/
B16........................................................................106
Assembly, DHW cylinder
– Internal unit............................................................. 86
Assembly, electrical equipment
– External unit, type AWT/AWT-AC 241.A10/A13....100
– External unit, type AWT/AWT-AC 241.B10/B13/
B16........................................................................108
– Internal unit............................................................. 80
Assembly, external unit........................................ 89, 93
Assembly, hydraulic
– Internal unit............................................................. 82
Assembly, hydraulics
– External unit, type AWT/AWT-AC 241.A10/A13....102
– External unit, type AWT/AWT-AC 241.B10/B13/
B16........................................................................ 110
AVI PCB......................................................... 33, 39, 40
B
BDF valve...................................................................72
Bracket set........................................................... 10, 13
Buffer temperature sensor................................... 37, 72
BUS cable.................................................. 8, 31, 32, 39
– Connection.............................................................. 40
BUS connecting cable................................................40
Bypass, heating water buffer cylinder........................ 34
C
Cable cross-section..........................................9, 42, 43
– Instantaneous heating water heater power cable... 43
– Power cable, heat pump control unit.......................42
Cable laying............................................................... 32
Cable length..................................................... 9, 42, 43
Cable lengths............................................................... 8
Cable routing..............................................................32
Cables/leads.............................................................. 23
Casing assembly
– Internal unit............................................................. 78
Casing parts
– Internal unit............................................................. 78
Casing sealing surfaces............................................. 21
Casing spare parts
– Internal unit............................................................. 78
Charging
– Refrigerant circuit.................................................... 51
Checking
– Fuses...................................................................... 75
– Sensors................................................................... 72
Checking brazed joints...............................................52
Checking threaded fittings..........................................52
Check valve................................................................30
Chilled ceiling............................................................. 30
Circulation pump
– Connection.............................................................. 35
Cleaning cylinder........................................................54
Coding card
– Slot.......................................................................... 38
Coding level 1............................................................ 57
Cold water connection..............................7, 8, 122, 125
Collector area.............................................................53
Collector temperature sensor.....................................38
– Curve.......................................................................72
Commissioning.............................................49, 57, 127
Commissioning assistant........................................... 57
Commissioning report................................................ 49
Communication interface........................................... 38
Communication module, LON.................................... 38
Compensating vibrations............................................23
Components, 230 V~..................................... 32, 34, 36
Compressor....................................................69, 70, 71
Compressor max. tilting angle....................................12
Concrete foundations................................................. 13
Condensate drain.................................................10, 13
Condensate pan.........................................................10
Connecting a cooling circuit....................................... 30
Connecting cable, internal/external
unit....................................................... 8, 31, 32, 39, 40
Connecting cables........................................................8
– 230 V~ components................................................ 32
Connecting leads
– Low voltage............................................................. 32
Connection
– BUS cable............................................................... 39
– Cooling circuit..........................................................30
– DHW........................................................................30
– Electrical components............................................. 31
– Overview................................................................... 7
– Preparing...................................................................8
– Refrigerant lines...................................................... 22
– Secondary circuit...............................................28, 29
– Solar circuit............................................................. 30
Connection, internal/external unit...............................39
Connection conditions................................................41
Connection set, secondary circuit.............................. 29
Keyword index
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