44
5784 568 - 03
Vitodens 100-W, B1HA series & B1KA Combi Installation/Service
CO2
high-fire low-fire
NG range
Target value
7.5-10.5% 6.5-10%
9.1% 8.5%
LPG range
Target value
10.0-12.0% 9-11.5%
10.7% 10.0%
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.
A
Flue gas measuring port
The Vitodens 100-W is factory-set for natural gas. During
commissioning or maintenance, the CO
2
and CO have to
be measured at the boiler flue adaptor test port to check
the flue integrity. We recommend measuring O2, as the
value is unmistakable regarding lambda (air/gas). The O2
content fluctuates between 7.5 % and 3.2 %. The CO/
CO
2
ratio has to be less than 0.004.
If the actual CO
2
or O2 and CO values deviate from the
stated range, check the balanced flue system for
leaks. If flue installation is OK, change the gas valve.
Note:
Operate the appliance with uncontaminated
combustion air to prevent operating faults and
damage.
For high altitude operation above 5,000 ft (1,500 m),
refer to page 45 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.
Checking the CO
2
Content/Relay Tests
1. Connect a flue gas analyzer at flue gas port
A
on
the boiler flue connection.
2. Start the boiler and check for leaks.
3. To check the CO
2
content the burner output can be
adjusted
manually.
1. Tap MODE.
2.
Press
/
until “SERV” is displayed.
3. OK to confirm.
OFF appears on the display. Test mode is then
not
activated.
4.
Use
/
to select the burner output;
5. Confirm your settings with OK.
The bars stop flashing.
4. Check the CO
2
content for the upper heating output
(100%).
5. Check the CO
2
content for the lower heating output
(20%).
The
CO
2
content must be between 0.5% and 1.0%
below the value of the upper heating output.
6.
If the CO
2
content lies within the indicated range,
continue with point 8.
If the CO
2
content lies outside the indicated range,
check the flue gas/ventilation air system for tightness;
remedy any leaks. Replace gas valve if required.
7. Re-check the CO
2
content for the higher and lower
heating
output.
8. Terminate test mode:
1.
/
until “SERV” flashes.
2. OK to confirm. The selected value flashes.
3. until OFF flashes.
4. OK to confirm.
When “SERV” disappears, test mode is terminated.
9. Shut down the boiler, remove the flue gas analyzer
and close flue gas measuring port
A
.
Shown on the Display
Burner output
OFF
- 20
-- 40
--- 60
---- 80
----- 100
0%
20%
40%
60%
80%
100%
Start-up, Inspection and Maintenance
