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

Commissioning, inspection, maintenance

Checking the rotary damper setting

For 246 and 311 kW rated heating output only
A
B
Fig. 8
1. Open the gas shut-off valve.
2. Check the position of the rotary damper with the
burner in idle mode. Rotary damper windows
must be fully opened. Scale ring
damper servomotor must be set to "0", relative to
marking .
C
3. Check control cable
A
Venturi mixing pipe:
Connection and kink-free routing
■
■ Fixing
Checking the CO
Preparing the test
Status Service
R
S
Fig. 9
16
C
B
on the air
D
between gas train and
content
2
D
4. Start the burner.
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
1. Open the gas shut-off valve.
2. Start the burner with emissions test mode enabled
("Test mode" in control unit menu).
Vitotronic operating instructions
3. Hold down S and
The display will then show the following:
Status: "P" (= controlled stop)
■
Service: Modulation level in % ("100" = 100 % =
■
upper heating output, "0" = 0 % = lower heating
output)
must
B
Rotary damper set-
ting
246
311
longer than 2 s.
35°
35°