Viessmann VITOCAL 242-S Installation And Service Instructions Manual page 160

Keyword index
Keyword index
Internal unit
– Cable lengths....................................9
– Dimensions.......................7, 148, 153
– Electrical connection.......................42
– Electrical values....................147, 151
– Internal components.......................90
– Refrigerant lines.............................29
– Service valve..................................91
– Weight..................................148, 153
Internal unit, isolating.........................17
Internal unit, opening.........................17
Internal unit installation......................15
Isolators.............................................54
K
KM BUS distributor............................49
L
Leak detection spray..........................66
Lightning protection............................10
Line entry...........................................27
Line length
– Refrigerant lines.......................25, 69
Liquid gas temperature sensor....91, 96
Liquid line...........8, 28, 30, 67, 149, 153
– Internal unit.....................................33
– Torque............................................29
Liquid separator.....................93, 94, 95
LON communication module..............49
Luster terminals...........................43, 46
LV leads.......................................39, 41
M
Magnesium anode.......................74, 75
Magnesium anode, replacing.............75
Main PCB...........................................43
Mains isolator...............................54, 61
Max. Cable length....................149, 153
Maximum temperature limiter............45
Measuring magnesium anode resist-
ance.............................................74, 75
Message connections........................46
160
(cont.)
Minimum clearances
– External unit....................................12
– Internal unit.....................................16
Minimum flow rate..............................36
Minimum room volume.......................16
Minimum system pressure...........72, 73
Mixer extension kit.............................46
Modbus distributor.............................49
Mounting the cylinder module............23
Multi connect system...........................8
N
Non-return valve....................37, 71, 91
NTC curve..........................................99
O
Oil lift bend.........................................24
Oil lift bends.......................................25
ON/OFF switch..................................78
On-site connections.............................7
On-site power consumption.........55, 61
Opening for 230 V cables....................8
Opening for LV leads...........................7
Opening programming unit................88
Opening the heat pump.....................65
Opening the internal unit....................17
Operating pressure............................72
Operator's log..............................65, 70
Output compressor stage...................80
Output data, cooling.................145, 150
Output data, heating................145, 149
Outside temperature sensor........48, 96
Overflow valve...................................36
Overview
– Electrical connections.....................88
– Internal components.................90, 92
– Pumps......................................90, 92
– Sensors....................................90, 92
– Valves.......................................90, 92
Overview of electrical connections.....42