29
REMOVE MIXER SCREWS
Each burner contains a mixer screw that must be removed. Refer
to Fig. 37 for the mixer screw location.
1. Remove the mixer screws from the burners.
NOTE
: It is not necessary to plug the hole in the burner when
the mixer screws are removed.
Location of mixer screw
that must be removed
A11511
Fig. 37 -- Mixer Screw Location
9/32”
7.1mm
5/16”
7.9mm
A05025
Fig. 38 -- Igniter Position -- Side View
REINSTALL BURNER ASSEMBLY
To reinstall burner assembly:
1. Attach flame sensor to burner assembly.
2. Install HSI and bracket to burner assembly.
3. Insert one-piece burner in slot on sides of burner box and
slide burner back in place.
4. Reattach HSI wires to HSI.
5. Verify igniter to burner alignment.
6. For Silicon Nitride igniters, see Fig. 38 and 39.
7. For Silicon Carbide igniters, see Fig. 40.
8. Re-attach Flame Sensor wire to Flame Sensor.
1-7/8
(47.6 mm)
A05026
Fig. 39 -- Igniter Position -- Top View
A93347
Fig. 40 -- Silicon Carbide Igniters
CONVERT GAS VALVE
UNIT DAMAGE HAZARD
Failure to follow this caution may result in unit damage
The G or J gas valve must be converted and pre--adjusted
before operating on natural gas. The E valves must be
pre--adjusted before operating on natural gas. If left this
way, sooting and corrosion will occur leading to early heat
exchanger failure.
CAUTION
!
