Viessmann Vitocal 252-A Series - Page 206

206
Electrical connections
– Checking............................................................... 124
– Checking outdoor unit........................................... 124
– Overview....................................................... 137, 163
Electrical terminal areas.............................................64
Electrical terminal areas, opening.............................. 64
Electrical values
– Indoor unit............................................. 188, 193, 198
– Outdoor unit.......................................... 188, 193, 198
Electric cable routing..................................................66
Electric cables.......................................... 38, 39, 40, 41
Electric ribbon heater................................................. 28
Electronic expansion valve.............................................
170, 171, 172, 173, 175, 176
Electronic expansion valve opening.........................131
Electronics module, HPMU........................................ 66
Energy meter
– Connecting.............................................................. 78
EPP insulating parts.................................................142
Evaporator................................170, 172, 173, 175, 176
Evaporator air intake temperature............................131
Expansion vessel............................. 112, 140, 141, 143
External blocking........................................................74
Extraction equipment............................................... 177
F
Fan................................................... 120, 170, 172, 173
Fan speed................................................................ 131
Fault messages
– Acknowledging...................................................... 135
– Calling up.............................................................. 135
– Display.................................................................. 135
Faults
– Acknowledging...................................................... 135
– Calling up.............................................................. 135
– Display.................................................................. 135
Feed........................................................................... 87
Filling function.......................................................... 109
Fill valve................................................................... 178
Fill water...................................................................106
Finished floor..............................................................49
Fire extinguisher.......................................................166
Fixing materials.......................................................... 27
Flammable atmosphere........................................... 168
Flat roof installation.................................................... 27
Float air vent valve........................... 170, 172, 174, 181
Floor load................................................................... 49
Floorstanding installation..................................... 27, 33
Floorstanding installation, outdoor unit.......... 37, 38, 40
Flow
– DHW cylinder.................................................... 18, 19
– Outdoor unit.................................... 18, 19, 20, 21, 22
– Secondary circuit.........................................18, 19, 20
Flow rate, manual setting......................................... 125
Flow regulating valve................................................. 54
Flow sensor..............................................140, 141, 146
Flow temperature
– Secondary circuit...................................................131
Flow temperature sensor......................... 140, 141, 151
– Heating/cooling circuit 2........................................ 151
– Secondary circuit...................171, 172, 173, 175, 176
Foundation............................. 33, 34, 35, 36, 38, 39, 40
Foundations......................................................... 38, 39
Free running of fan, checking...................................120
Front panels............................................................... 93
– Fitting...................................................................... 93
– Removing................................................................ 62
Frost protection for foundations......... 34, 36, 38, 39, 40
Function, system pressure........................................111
Fuse................................................................. 153, 184
– F1.................................................................. 153, 184
– F2.......................................................................... 153
– Max. power loss............................................ 153, 184
G
Gravel bed for condensate...........34, 36, 38, 39, 40, 41
H
Heat exchanger cleaning......................................... 120
Heating circuit pump........................................ 140, 141
Heating curve........................................................... 126
Heating water flow........................55, 56, 190, 195, 200
Heating water return.............................................55, 56
Heating water side connections................................. 54
Heat pump
– Checking for noise................................................ 126
– Closing............................................................ 93, 125
– Opening.................................................................112
– Starting....................................................................97
Heat pump control unit............................................... 15
– Power cable............................................................ 61
High limit safety cut-out............125, 140, 141, 175, 176
High pressure fault..................................................... 29
High pressure sensor....................................... 175, 176
High pressure switch PSH............................... 175, 176
Hot gas temperature................................................ 131
HPMU.........................................................................66
Hydraulic components......................................142, 180
Hydraulic parameters............................................... 185
Hydraulics.................................................................. 14
Hydronic balancing...................................................125
I
Identification............................................................. 169
Ignition sources................................................ 166, 168
Impressed current anode......................................... 114
Indoor unit
– Cable lengths.......................................................... 61
– Closing.................................................................... 93
– Dimensions........................................... 190, 195, 200
– Electrical values.................................... 188, 193, 198
– Instantaneous heating water heater power supply..89
– Internal components..............................................140
– Siting....................................................................... 46
– Transport.................................................................43
Indoor unit, splitting.................................................... 43
Inspection......................................................... 112, 125
Keyword index
Keyword index (cont.)
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