Viessmann VITOCROSSAL 200 CM2 Service Instructions For Contractors page 59
400 to 620 kw gas condensing boiler with matrix cylinder burner, for open flue and room sealed operation, permissible operating pressure 6 bar
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Also See for VITOCROSSAL 200 CM2:
- Technical manual (100 pages) ,
- Installation instructions manual (52 pages) ,
- Service instructions manual (76 pages)
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Burner control unit connection diagrams
Q
P
N
H
M
L
K
R
H
Fig. 43
Burner control unit VUC 310
A
H
Fan motor with PWM switching and feedback
Gas pressure switch 2
K
Air pressure switch 1
L
Gas pressure switch 1
M
A
Air pressure switch 2
N
Flue gas temperature sensor 2
P
Flue gas temperature sensor 1
Q
Display and programming unit
R
Connection diagrams
59
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