Vitodens 200-W B2HA 112, 150 Service
5683 710 - 09
28
Start-up and Service
Check CO
2
Setting
The Vitodens 200-W, B2HA boiler is equipped with
the Combustion Management System developed by
Viessmann which ensures optimal combustion quality
independent of gas quality and type. (For a description of
the Combustion Management System, see page 28 in this
manual). During initial start-up and maintenance you will
only need to check the CO
2
and O
2
content at the boiler
vent pipe adaptor.
Note:
The Vitodens 200-W, B2HA 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.
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
:
Service
menu
- Press OK and
simultaneously for approximately
4
seconds.
- “Actuator test”
- Select lower heating output: select “Base load OFF”.
Then “Base load ON” appears and the burner
operates at its upper heating output.
- Select upper heating output: select “Full load OFF”.
Then “Full load ON” appears and the burner
operates at its upper heating output.
- Terminate with OK or .
4. Measure
CO
2
and O
2
content at boiler vent pipe
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 31.
- 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
2
content range:
- 7.6 to 9.6% for natural gas
- 9.0 to 11.3% for LPG
Acceptable
O
2
content range:
- 3.8 to 7.3% for all gas types
5. Enter measured values into the Maintenance Record
on page 96.
6. Select the upper output: Select “Full load ON”.
Confirm with OK.
7. Measure
CO
2
and O
2
content at boiler vent pipe
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 31.
- 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
2
content range:
- 7.6 to 9.6% for natural gas
- 9.0 to 11.3% for LPG
Acceptable
O
2
content range:
- 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 100.
