Manual

20
Set Air Adjusting Plate
See (Figure 17)
Allow the burner to run until the appliance has
warmed suffi ciently.
Visually check the fl ame. The fl ame should not be
dark orange or smoky. If the fl ame appears to be
smoking, increase the amount of air by re-adjusting
the damper indicator to a higher number.
Once the appliance has warmed, the air setting can
be checked and adjusted.
Use combustion test instruments to adjust the
burner.
Adjust the air until a trace of smoke is achieved
with CO2 level as high as possible (lowest
possible O2).
Example: 13.5% CO2 (2.5% O2) with a trace of
smoke.
Increase the air to reduce CO2 by 2 percentage
points at a zero smoke level. (Increase O2 by 3
percentage points at a zero smoke level.)
Example: Reduce CO2 from 13.5% to 11.5%,
with zero smoke (or increase O2 from 2.5% to
5.5%).
This procedure provides a margin of reserve air
to accommodate variable conditions.
Check the breech draft pressure against the
appliance manufacturer’s recommended setting
(typically + 0.1” W.C.).
If the breech pressure is higher or lower than
recommended level, adjust the appliance breech
damper to achieve the specifi ed setting. Recheck
the smoke and CO2 (or O2) levels. Adjust burner
air if necessary and tighten the air adjusting plate
screw securely.
1.
2.
3.
4.
a.
b.
c.
5.
6.
Section: Start the Burner
Figure 18 - Adjustable Mounting Plates for CF1000
Legend
H -
Damper label - position indicator for air adjustment plate
J - Damper indicator - permanently attached to damper
L - Air adjusting plate - sets air position
K - Air adjusting plate screw - locks plate position
H
J
L
K
Figure 17 - Air Damper Assembly