Viessmann Vitocrossal 200 Service Instructions For Contractors page 25

Fitting the burner
115 to 311 kW
B
D
C
Fig. 22
Control cable connection diagrams
Pressure-jet gas burners 87 kW
A
-
+
B
c
C
-
+
f
g
Fig. 23
Air pressure switch 2
A
Choke valve
B
Air pressure switch 1
C
(cont.)
A
E
a
b
h k
G
Commissioning, inspection, maintenance
5. Reinstall control cables using clamps. For connec-
tion diagrams, see following pages.
!
Please note
Incorrectly connected control cables can
cause malfunctions.
Ensure that control cables are connected
correctly.
6. Check control cables:
■ Correct connection and kink-free routing
■ Application and seating of retaining clips
7. Tighten fitting
C
Danger
Escaping gas leads to a risk of explosion.
Check the fitting and gasket between the fan
housing and the boiler door for gas tight-
ness.
d
Boiler door
D
Fan
E
on gas supply pipe D .
D
E
F
e
25