Viessmann Vitocal 242-S Installation And Service Instructions Manual page 151

Keyword index
U
Underfloor heating.............................52
Underfloor heating circuit.............14, 52
Union nuts, replacing.........................40
V
Vacuum gauge...................................74
Vacuum pump....................................74
Ventilation..........................................91
Venting
■ Secondary circuit............................77
■ Solar circuit.....................................79
Vibration insulation.............................20
Vitocom..............................................88
W
Wall mounting
■ Bracket set......................................23
■ External unit....................................23
Wall mounting bracket set..................19
(cont.)
Warranty............................................84
Water quality......................................77
Weatherproofing................................19
Weight................................................20
■ External unit..................................139
■ Internal unit...................................139
Well circuit..........................................54
Wind direction....................................19
Wind loads.........................................19
Working on the refrigerant circuit.......76
Keyword index
151