Viessmann VITOCROSSAL Series, Installation Instructions Manual

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1. Information Disposal of packaging ............................................................................ 5
Symbols ................................................................................................. 5
Intended use .......................................................................................... 5
Product information ................................................................................ 6
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System examples ............................................................................... 6
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Conversion for other countries ........................................................... 6
2. Preparing for installation ................................................................................................................ 7
3. Installation sequence Siting and levelling the boiler ................................................................. 9
Fitting the thermal insulation .................................................................. 10
Mounting the burner ............................................................................... 11
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Burners up to 80 kW ........................................................................... 11
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Burners from 120 to 318 kW ............................................................... 12
Fitting the gas supply pipe (accessories) ............................................... 13
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Routing options for the gas supply pipe ............................................. 13
Fitting the set for room sealed operation .............................................. 16
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Position of the ventilation air pipe ....................................................... 16
Fitting the boiler flue connection ............................................................ 18
Fitting the trap ........................................................................................ 19
Fitting the side panels ............................................................................ 20
Assembling the control unit .................................................................... 21
Installing the control unit ........................................................................ 21
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Connecting the programming unit to the control unit .......................... 22
Connecting the internal connecting cables to the control unit ............... 22
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Applying strain relief ........................................................................... 22
Fitting the control unit to the boiler ......................................................... 25
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Connecting the flue gas temperature sensor ...................................... 26
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Fitting the back panels ........................................................................ 26
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Boiler water temperature sensor and water pressure switch .............. 27
Connecting external cables ................................................................... 28
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Circulation pump at plug
sÖ
................................................................ 29
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Circulation pump at plug
sA
................................................................ 30
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Pumps with power consumption greater than 2 A or connection for
HE pump ............................................................................................. 31
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External demand via 0
–
10 V input .................................................... 32
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External blocking via switching contact .............................................. 32
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Connection of accessories ................................................................. 33
Burner electrical connection .................................................................. 34
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Burners up to 80 kW ........................................................................... 34
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Burners 120/160 kW ........................................................................... 35
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Burners 200/240/280/318 kW ............................................................. 36
Electrical connection of the motorised flue gas damper in multi boiler
systems .................................................................................................. 36
Inserting the coding card ....................................................................... 37
Fitting the top panels ............................................................................. 37
Connections on the heating water side .................................................. 38
Connecting the condensate drain .......................................................... 39
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Condensate drain ............................................................................... 39
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Connecting the neutralising system (accessories) ............................. 39
Flue gas connection ............................................................................... 39
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Connections on the flue gas side ....................................................... 39
Fitting the front panel ............................................................................. 40
Commissioning and adjustment ............................................................. 40
4. Appendix Connection and wiring diagram ............................................................. 41
Specification .......................................................................................... 42
Index
5839818