Relay Tests (Burner Tests) - Viessmann Vitodens 100-W WB1B Series Installation And Service Instructions Manual

Start-up, Inspection and Maintenance
Steps
(continued)
Start-up and Maintenance
A Flue gas measuring port
Legend
A Heating mode pump output on
B Heating mode
C Boiler water temperature in °F or fault code
D Water temperature unit in °F
E Service mode
F Current burner firing rate
G Burner in operation
H Fault
I Comfort function started
J Comfort function stopped
62
Vitodens 100-W, WB1B Installation & Service

6. Relay tests (burner tests)

The Vitodens 100-W boiler is factory preset for operation
with natural gas. It is recommended that a CO
performed at the boiler vent pipe adaptor as part of the
initial start-up/maintenance procedure.
For high altitude operation above 5,000 ft (1,500 m),
refer to page 64 first.
For conversion to propane, see the separate instructions.
The CO value lies within the range of;
2
- 7.5 to 10.5 % for natural gas and 10 to 12% for
liquid propane gas. The CO
be compared with the above CO
high-fire
7.5-10.5%
NG range
9.0%
Target value
10.0-12.0%
LPG range
10.8%
Target value
Note: When the boiler is initially turned on, a self-
diagnostic check is initiated. Wait until the
temperature display is stabilized and the boiler's
actual temperature is displayed.
Note: If step 14 is not performed, the process will end
automatically after 30 minutes.
If the CO value measured lies more than 1% outside the
2
stated range, perform the following step:
- Check the venting system for leaks (refer to the
Vitodens Venting System Installation Instructions).
1. Bring the boiler to a high-fire test position by turning
the selector dial "tr" clockwise all the way to
"U Reset" and then back again into the high-fire control
range (in less than 2 seconds).
The display shows "SERV", the boiler water temperature,
five bars " <" for high-fire test, burner in operation
<
<
<
<
"A" and "r" pump operation.
Control range - high-fire
check be
2
value measured must
2
value.
2
CO 2
low-fire
7.5-10.5%
8.7%
10.0-12.0%
10.5%