Viessmann VITOCAL 222-S Installation And Service Instructions Manual page 137

Keyword index
Instantaneous heating water
heater
■ Enable............................................87
■ High limit safety cut-out reset.........87
■ Parameter settings.........................87
■ Power cable......................................9
■ Power supply..................................62
■ Specification.................................128
Instructing the system user................88
Internal/external unit connecting
cable....................................8, 9, 56, 57
Internal/external unit connection........56
Internal/external unit interface............56
Internal components....................91, 93
Internal unit
■ Cable lengths....................................9
■ Dimensions...............................7, 129
■ Electrical values............................128
■ Internal components.......................91
■ Refrigerant lines.............................36
■ Service valve..................................92
■ Weight..........................................129
Internal unit, isolating...................24, 25
Internal unit, opening...................24, 25
Internal unit, siting..............................23
Internal unit electrical connection.......48
Internal unit installation......................23
Isolation
■ Internal unit.....................................24
Isolators.............................................59
K
Key to system examples....................11
KM BUS.............................................56
KM BUS distributor......................13, 56
L
Leak detecting spray..........................69
Lightning protection............................19
Line length
■ for refrigerant lines..........................72
■ For refrigerant lines........................72
■ Refrigerant lines.....................33, 130
(cont.)
13, 63, 64, 92
Liquid gas temperature sensor
■ Curve..............................................97
Liquid line.......8, 13, 33, 35, 37, 70, 130
■ Torque......................................36, 40
Liquid separator.....................94, 95, 96
Luster terminals...........................50, 53
LV leads.......................................46, 48
M
Magnesium anode.......................78, 79
Magnesium anode, replacing.............79
Main PCB...........................................50
Mains isolator.....................................65
Maintenance......................................68
Maximum temperature limiter............52
Measuring magnesium anode resist-
ance.............................................78, 79
Message terminals.............................53
Minimum clearances
■ External unit....................................21
■ Internal unit.....................................24
Minimum flow rate..............................43
Minimum room volume.......................24
Minimum system pressure.................75
Mixer extension kit.......................53, 56
■ Parameter settings.........................85
N
Non-return valve..........................44, 74
NTC curve
■ Temperature sensors...............98, 99
O
Oil lift bends.................................32, 33
ON/OFF switch..................................82
On-site connections.............................7
Opening for 230 V cables....................8
Opening for LV leads...........................7
Opening programming unit................89
Opening the heat pump.....................68
Opening the internal unit..............24, 25
Operating log.....................................68
Operating pressure............................75
Keyword index
137