62
5600 332 v1.3
Vitodens 100-W, WB1B Installation & Service
Steps
(continued)
Start-up, Inspection and Maintenance
6. Relay tests (burner tests)
Start-up and Maintenance
CO2
high-fire low-fire
NG range
Target value
7.5-10.5% 7.5-10.5%
9.0%
8.7%
LPG range
Target value
10.0-12.0% 10.0-12.0%
10.8% 10.5%
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
The Vitodens 100-W boiler is factory preset for operation
with natural gas. It is recommended that a CO
2
check be
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
2
value lies within the range of;
- 7.5 to 10.5 % for natural gas and 10 to 12% for
liquid propane gas. The CO
2
value measured must
be compared with the above CO
2
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
2
value measured lies more than 1% outside the
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.
high-fire range
(6 and above)
Control range - high-fire
A
Flue gas measuring port