Table Of Contents - Viessmann VITOCAL 242-G Installation And Service Instructions Manual
Compact heat pumps
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Also See for VITOCAL 242-G:
- Installation and service instructions manual (236 pages) ,
- User manual (236 pages) ,
- Technical manual (92 pages)
Table of Contents
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Index
Index
tion, maintenance
4
Symbols .................................................................................................
Intended use ..........................................................................................
Product information ................................................................................
Requirements regarding on-site connections ........................................
Recommended power cables .............................................................
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Siting and transport requirements ..........................................................
Transport ............................................................................................
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Installation room requirements ........................................................... 10
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Minimum clearances ........................................................................... 10
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Siting the heat pump .............................................................................. 11
Removing the cylinder module ........................................................... 11
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Removing the heat pump module ....................................................... 16
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Assembly and sealing faces to note ................................................... 18
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Removing the transport brackets ........................................................ 19
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Hydraulic connections ............................................................................ 19
Connecting the primary/secondary circuits ......................................... 19
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Connecting the DHW side .................................................................. 21
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Connecting the solar circuit ................................................................ 21
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Connecting a heating/cooling circuit, if required ................................. 22
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Electrical connections ............................................................................ 22
Routing the cables to the wiring chamber .......................................... 22
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Main PCB (230 V~ components) ........................................................ 24
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Expansion PCB on main PCB (230 V~ components) ......................... 26
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Luster terminals (alarm and safety connections) ................................ 26
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Controller and sensor PCB (LV connections) ..................................... 27
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Power supply ......................................................................................... 29
Heat pump control unit power supply 230 V~ ..................................... 30
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Compressor power supply 400 V~ ..................................................... 30
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Compressor power supply 230 V~ ..................................................... 31
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ply ....................................................................................................... 31
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ply ....................................................................................................... 31
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Power supply with power-OFF: with on-site load disconnect ............. 32
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Smart Grid .......................................................................................... 34
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Phase monitor (accessories) .............................................................. 35
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Make connections at terminals X3.8/X3.9 ............................................. 37
Closing the heat pump ........................................................................... 37
Steps - commissioning, inspection and maintenance ............................ 38
Overview of electrical components ........................................................ 52
Opening programming unit .................................................................... 54
Overview of internal components .......................................................... 55
DHW cylinder drain & fill valve positions ............................................... 56
Draining the heat pump on the secondary side ..................................... 56
Checking the sensors ............................................................................ 56
Ω
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Ω
Viessmann Pt500A (green marking) ................................................... 58
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Checking the fuses ................................................................................ 58
Appliance is too noisy ............................................................................ 59
(blue marking) ............................................... 57
(orange marking) ........................................... 57
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