Check Co Setting - Viessmann VITODENS 222-F Service Instructions Manual

Service
Check CO Setting
2
The Vitodens 222-F, B2TA boiler is equipped with the Lambda Pro Combustion Management System developed by
Viessmann which ensures optimal combustion quality independent of gas quality and type. (For a description of the
Lambda Pro Combustion Management System, see page 31 in this manual.) During initial start-up and maintenance
you will only need to check the CO
Note: The Vitodens 222-F, B2TA boiler comes factory set to operation with natural gas. (For instructions on how to
convert to operation with liquid propane gas, see page 16.) For high-altitude operation above 5,000 ft. (1,500 m),
see page 16. The MatriX cylinder burner of this boiler is preset for the entire gas group. No adjustment or
readjustment of the burner is required.
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and O content at the boiler vent pipe adaptor.
2 2
Vitodens 222-F B2TA 19 and 35 Service
1. Connect a flue gas analyzer to test port A at boiler
vent pipe adaptor.
2. Open gas shut-off valve, start up boiler and create
heat demand.
3. Select higher/lower output:
- Press OK and simultaneously for approximately
4 seconds.
- "Actuator test"
- Select lower output: "Base load ON" and confirm
with OK.
- Terminate with OK or
4. Measure CO and O
2
2
adaptor. If the measured values deviated by more
than 1% from the acceptable ranges for the
respective fuel type listed in the right column or
in the table on page 16.
- check the venting system for leaks
(see subsection on page 20).
- check that the boiler is set for the gas type used
(see subsection on page 15).
Acceptable CO content range:
2
- 7.5 to 9.6% for natural gas
- 9.0 to 11.3% for LPG
Acceptable O content range:
2
- 3.8 to 7.3% for all gas types
5. Enter measured values into the Maintenance Record
on page 103.
6. Set boiler to full-fire by selecting "Full load ON".
Confirm with OK.
7. Measure CO and O
2 2
adaptor. If the measured values deviated by more
than 1% from the acceptable ranges listed in the
right column or in the table on page 16.
- check the venting system for leaks
(see subsection on page 20).
- check that the boiler is set for the gas type used
(see subsection on page 15).
Acceptable CO content range:
2
- 7.5 to 9.6% for natural gas
- 9.0 to 11.3% for LPG
Acceptable O content range:
2
- 3.8 to 7.3% for all gas types
8. Press OK and after testing and enter measured
values into the Maintenance Record on page 103.
.
content at boiler vent pipe
content at boiler vent pipe