Viessmann Vitocrossal 200 Service Instructions For Contractors page 17

Checking the CO
Permissible CO content
2
Gas type CO con-
2
tent
at
Natural gas Upper heat-
E ing output
(100 %)
Lower heat-
ing output
(0 %)
Natural gas Upper heat-
H ing output
(100 %)
Lower heat-
ing output
(0 %)
Natural gas Upper heat-
LL ing output
(100 %)
Lower heat-
ing output
(0 %)
Natural gas Upper heat-
L ing output
(100 %)
Lower heat-
ing output
(0 %)
CO test at the upper heating output (87 kW)
2
Fig. 10
content
(cont.)
2
87 115
7.1 - 10.2 % 7.0 - 10.1 % 7.0 - 10.1 % 7.1 - 10.2 % 7.1 - 10.2 %
Actual value at upper heating output minus
0.3 - 0.7 % 0.3 - 0.7 %
8.0 - 10.2 % 7.9 - 10.1 % 7.9 - 10.1 % 8.0 - 10.2 % 8.0 - 10.2 %
Actual value at upper heating output minus
0.3 - 0.7 % 0.3 - 0.7 %
7.2 - 10.0 % 7.1 - 9.9 %
Actual value at upper heating output minus
0.3 - 0.7 % 0.3 - 0.7 %
8.3 - 10.0 % 8.2 - 9.9 %
Actual value at upper heating output minus
0.3 - 0.7 % 0.3 - 0.7 %
Commissioning, inspection, maintenance
Rated heating output in kW
142 186
0.3 - 0.7 % 0.4 - 0.8 %
0.3 - 0.7 % 0.4 - 0.8 %
7.1 - 9.9 % 7.2 - 10.0 % 7.2 - 10.0 %
0.3 - 0.7 % 0.4 - 0.8 %
8.2 - 9.9 % 8.3 - 10.0 % 8.3 - 10.0 %
0.3 - 0.7 % 0.4 - 0.8 %
1. Press until the service display has counted up to
"100" (= 100 %).
2. Check the CO content at the flue pipe.
2
For permissible CO
2
3. Check control cables:
■ Connection and kink-free routing
■ Application and seating of retaining clips
Note
The unconnected end of the hose is open in open
flue operation. For room sealed operation, the end
of the hose is pushed onto the intake adaptor.
246
7.1 - 10.2 %
0.4 - 0.8 % 0.4 - 0.8 %
8.0 - 10.2 %
0.4 - 0.8 % 0.4 - 0.8 %
7.2 - 10.0 %
0.4 - 0.8 % 0.4 - 0.8 %
8.3 - 10.0 %
0.4 - 0.8 % 0.4 - 0.8 %
content, see above table.
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17