wc_tx003210gb.fm
39
HDR 155
Burner Setup
5.5
Adjusting the Air Damper
When
Adjust the air damper when burner performance is in question.
Factory
settings
Air damper: 2
Note:
This parameter is factory-set.
Effects
The air setting has the following effects on combustion.
Higher O
2
percentage (excess air settings) lowers soot production but raises
stack temperature and reduces efficiency: lean mixture.
Lower O
2
percentage (inadequate air settings) increases efficiency and lowers
stack temperature but may cause soot build-up: rich mixture.
Procedure
Follow the procedure below to adjust the air damper.
1. Initial setting of the air damper should be performed with the machine shut
down.
2. Remove the burner. See topic
Removing and Installing the Burner
Assembly.
3. Loosen the screws
(a)
.
4.
Using the position pointer
(b)
to determine position, rotate the air damper
to a higher number to
in
crease air volume.
to a lower number to
de
crease air volume.
5.
Tighten the screws
(a)
.
6.
After the air damper has been adjusted, reinstall the burner. See topic
Removing and Installing the Burner Assembly
.
Result
The air damper has now been adjusted.
