Viessmann Vitocal 242-S Installation And Service Instructions Manual page 134

Keyword index
Keyword index
(cont.)
Short circuit magnesium anode:internal indirect
coil........................................................................54, 55
Side cover, external unit.............................................47
Side panels................................................................ 21
Signal connections..................................................... 36
Siting
– Between walls......................................................... 11
– Conditions............................................................... 10
– External unit............................................................ 13
– Freestanding........................................................... 10
– In recesses.............................................................. 11
Smart Grid............................................................46, 63
Solar circuit................................................................ 53
Solar circuit connection.............................................. 30
Solar circuit filling and venting....................................53
Solar circuit flow....................................... 7, 8, 122, 125
Solar circuit pump
– Connection.............................................................. 35
Solar circuit return.................................... 7, 8, 122, 125
Solar DHW heating.................................................... 61
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 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
Spare parts, casing
– External unit, type AWT/AWT-AC 241.A10/A13......98
– External unit, type AWT/AWT-AC 241.B10/B13/
B16........................................................................106
Spare parts, DHW cylinder
– Internal unit............................................................. 86
Spare parts, 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
Spare parts, external unit....................... 89, 93, 97, 105
Spare parts, hydraulic
– Internal unit............................................................. 82
Spare parts, hydraulics
– External unit, type AWT/AWT-AC 241.A10/A13....102
– External unit, type AWT/AWT-AC 241.B10/B13/
B16........................................................................ 110
Specification..................................................... 119, 122
Standard tariff.............................................................42
Starting appliance...................................................... 57
Start sequence, appliance..........................................57
Start sequence, heat pump........................................ 57
Support for floorstanding installation....................10, 13
Swaged connections
– Checking................................................................. 52
Swimming pool...........................................................38
Swimming pool water heating.................................... 62
134
Switching contacts
– Contact humidistat.................................................. 31
Switching module....................................................... 33
System pressure, checking........................................ 54
System pressure check..............................................53
System user instruction..............................................64
T
Temperature limiter.................................................... 35
Temperature sensor................................................... 72
– Air intake, evaporator (OAT)....................... 69, 70, 71
– Compressor head (CTT)............................. 69, 70, 71
– Curve, type NTC 10 k
– Curve, type NTC 20 k
– Curve, type Pt500A................................................. 74
– Curve type NTC 10 k
Ω
– Curve type NTC 50 k
Ω
– Refrigerant inlet, evaporator (OCT).............69, 70, 71
Temperature sensor, air intake, evaporator................72
Temperature sensor, compressor head......................72
Temperature sensor, evaporator................................ 72
Temperature sensor, refrigerant inlet, evaporator...... 72
Temperature sensors, connecting.............................. 37
Thermal insulation of flared connections, checking... 56
Tightness check......................................................... 49
Tightness test....................................................... 29, 53
– Annual..................................................................... 52
– Refrigerant circuit.................................................... 52
Tilting angle................................................................ 12
TN-C system........................................................ 44, 45
Top-up water.............................................................. 52
Torque
– Refrigerant lines................................................ 25, 27
– Service valve union nut..................................... 51, 52
Total weight...................................................... 121, 125
Transport.................................................................... 12
– Internal unit............................................................. 13
Tube clip with EPDM insert........................................ 23
Type-dependent heating output................................. 59
Type overview.............................................................. 6
U
Underfloor heating......................................................35
Underfloor heating circuit........................................... 35
Union nuts, replacing........................................... 24, 27
Use...............................................................................5
Utilisation of power generated on site........................ 41
V
Vacuum gauge........................................................... 51
Vacuum meter............................................................ 51
Vacuum pump............................................................ 51
Ventilation...................................................................62
Venting....................................................................... 52
– Solar circuit............................................................. 53
Vibration isolation................................................. 10, 23
Vitocom 100............................................................... 60
........................................... 73
Ω
........................................... 73
Ω
............................................ 74
............................................ 75