Table Of Contents - Viessmann Vitocal 242-S Installation And Service Instructions Manual

Index
1. Information
2. Preparing for installation
3. Installation sequence
4. Commissioning, inspec-
tion, maintenance
5. Maintenance
Disposal of packaging ............................................................................
Symbols .................................................................................................
Intended use ..........................................................................................
Product information ................................................................................
Requirements regarding on-site connections ........................................
Recommended power cables .............................................................
■
Installing the external unit ...................................................................... 10
Installation information ........................................................................ 10
■
Installation site .................................................................................... 11
■
Minimum clearances ........................................................................... 11
■
Transport and installation ................................................................... 12
■
Floorstanding installation .................................................................... 13
■
Wall mounting ..................................................................................... 13
■
Installing the internal unit ....................................................................... 13
Transport ............................................................................................ 13
■
Installation room requirements ........................................................... 14
■
Minimum clearances ........................................................................... 15
■
Removing the cylinder module ........................................................... 16
■
Assembly and sealing faces to bear in mind ...................................... 21
■
Connecting refrigerant lines ................................................................... 22
Routing refrigerant lines ..................................................................... 22
■
Sound and vibration isolation when line entry is above ground level . 23
■
Connection to the external unit ........................................................... 24
■
Connection to the internal unit ............................................................ 25
■
Connecting the secondary circuit ........................................................... 28
Connecting the DHW side ..................................................................... 30
Safety valve ........................................................................................ 30
■
Connecting the solar circuit ................................................................... 30
Connecting a cooling circuit if required .................................................. 30
Electrical connection .............................................................................. 31
Internal unit: Routing the cables to the wiring chamber ...................... 32
■
Internal unit: Overview of connections ................................................ 33
■
Internal unit: Main PCB (230 V~ components) ................................... 34
■
Internal unit: Expansion PCB on main PCB (230 V~ components) .... 36
■
Internal unit: Luster terminals (signal and safety connections) ........... 36
■
Internal unit: Controller and sensor PCB (LV connections) ................ 37
■
Internal unit: AVI PCB ......................................................................... 39
■
External unit: Overview of connections .............................................. 40
■
Connecting internal and external units ............................................... 40
■
Power supply ......................................................................................... 41
Heat pump control unit power supply 230 V~ ..................................... 42
■
External unit power supply 230 V~/400 V~ ........................................ 42
■
Connecting instantaneous heating water heater power supply .......... 43
■
Power supply with power-OFF: Without on-site load disconnect ....... 44
■
Power supply with power-OFF: With on-site load disconnect ............ 44
■
Mains power supply in conjunction with on-site power consumption . 46
■
Smart Grid .......................................................................................... 46
■
Closing the heat pump ........................................................................... 47
Fitting side cover for external unit ....................................................... 47
■
Steps - commissioning, inspection and maintenance ............................ 48
Overview of electrical components ........................................................ 65
Opening programming unit .................................................................... 65
Overview of internal components: Internal unit ...................................... 67
DHW cylinder drain & fill valve positions ............................................... 68
Index
5
5
5
6
7
9
3