Checking The Rotary Damper Setting - Viessmann Vitocrossal 200 Service Instructions For Contractors

Checking the rotary damper setting

A
Fig. 9
1. Open the gas shut-off valve.
2. Check the position of the rotary damper in burner
idle mode. Rotary damper windows
fully opened. Scale ring
vomotor must be set to "0", relative to marking
3. Check whether compensation hose
connected between the gas train and distributor
pipe.
4. Start the burner.
B must be
on the air damper ser-
D
.
C
A has been
Commissioning, inspection, maintenance
B
C D
5. Check the position of the rotary damper during the
start-up phase. Rotary damper windows
be almost closed for approx. 5 s. During this time,
scale ring must be at the following settings:
D
Rated heating output in
kW
must
B
Rotary damper set-
ting
248
314
30°
30°
15