Viessmann Vitocrossal CRU Series, Installation Instructions Manual

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1. Information Disposal of packaging ............................................................................ 4
Symbols ................................................................................................. 4
Intended use .......................................................................................... 4
Product information ................................................................................ 5
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System examples ............................................................................... 5
2. Preparing for installation Clearances and dimensions .................................................................. 6
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Anti-vibration boiler supports .............................................................. 7
Thermal insulation components ............................................................. 7
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Thermal insulation, pack 1 .................................................................. 8
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Thermal insulation, pack 2 .................................................................. 9
3. Installation sequence Installing the combustion chamber module ........................................... 11
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Installation without anti-vibration boiler supports ................................ 11
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Installation with anti-vibration boiler supports ..................................... 11
Fitting the heat exchanger module to the combustion chamber module 12
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Fitting the supplied foot supports to the heat exchanger module ....... 13
Levelling the combustion chamber and heat exchanger modules ......... 14
Connections on the heating water side .................................................. 14
Fitting the thermal insulation .................................................................. 17
Mounting the burner ............................................................................... 18
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Fitting the intake extension to the burner ........................................... 19
Attaching the top and bottom rails ......................................................... 20
Routing electric cables along the rails ................................................... 21
Fitting the crossbars .............................................................................. 22
Burner electrical connection .................................................................. 23
Fitting the side panels ............................................................................ 24
Attaching the control unit panel to the front top panel ........................... 25
Fitting the top front panel ....................................................................... 25
Connecting the programming unit .......................................................... 27
Fitting the control unit to the top back panel .......................................... 28
Attaching the back panels ...................................................................... 29
Connecting the control unit .................................................................... 30
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Inserting cables and applying strain relief .......................................... 31
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On-site connections at the Vitotronic control unit ............................... 31
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Overview of electrical connections, burner control unit ...................... 32
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Power supply ...................................................................................... 33
Fitting the top panels and control unit cover .......................................... 35
Fitting the trap ........................................................................................ 36
Connecting the neutralising system ....................................................... 36
Connections on the flue gas side ........................................................... 36
Fitting the front side panels .................................................................... 38
Connections on the gas side ................................................................. 39
Fitting the front panel ............................................................................. 40
4. Commissioning ................................................................................................................ 41
5. Keyword index ................................................................................................................ 42
Index
5833291