Installation manual
www.desatech.com
118531-01C 31
Thermocouple
Thermopile
1/8"
Pilot Burner
Piezo
Ignitor
Figure 52 - Pilot Assembly (Millivolt)
3/8" to 1/2"
INSPECTING BURNERS
Check pilot ame pattern and burner ame
patterns often.
The pilot assembly is factory preset for the proper
ame height. Alterations may have occurred dur-
ing shipping and handling. Call a qualied service
person to readjust the pilot if necessary.
The position and pattern of the pilot ames in
relation to the sensing devices should be as
shown in Figure 52.
If you pilot assembly does not meet these
requirements:
• turn replace off (see To Turn Off Gas to
Appliance, page 28)
• see Troubleshooting, page 35
Figure 53 - Typical Flame Pattern
Burner ames will be steady, not lifting or oat-
ing. Flame patterns will be different from unit
to unit and will vary depending on installation
type and weather conditions.
If the vent conguration is installed incorrectly,
the ames will lift or "ghost". This can be dan-
gerous. Inspect the ames after installation to
ensure proper installation and performance.
Figure 53 shows a typical ame pattern.
If burner ame pattern differs from that de-
scribed:
• turn replace off (see To Turn Off Gas to
Appliance, page 28)
• see Troubleshooting, page 35
CONVERSION
INSTRUCTIONS
The conversion kit is packaged with the unit.
Please check contents before beginning this
conversion.
Before proceeding, make sure gas control valve
is in the OFF position, all electrical power to ap-
pliance is off and replace is cool to the touch.
Remove glass door to access the log and
burner assembly as follows:
1. Remove lower louver panel (see Removing
Lower Louver Access Panel, page 26).
2. Remove top louver trim panel (see Remov-
ing Top Louver Trim Panel, page 26).
3. Remove glass door panel (see Removing
Glass Door, page 25).
1. Remove top, rear and base logs, see
Figure 54, page 32.
2.
Remove two screws holding pilot bracket to
rear of burner pan. (see Figure 54, page 32).
3. Remove two screws holding rear log
stand to rear panel of rebox (see Figure
54, page 32).
4. Expose main burner orifice by lifting
burner pan assembly off orice mount.
5. Use a 1
1
/
8
" wrench on bulkhead tting and
an 11/16" wrench to remove main burner
orice (see Figure 55, page 32).
6. Apply thread sealant to make end of the
#55 main burner orice included with kit
and remount orice into bulkhead tting.