Desa CB36N Gas Heater User Manual


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117437-01D 23
INSPECTING BURNERS
Thermocouple
Thermopile
1/4"
Pilot Burner

Ignitor
Figure 38 - Pilot Assembly
(Millivolt Ignition System)
3/8" to 1/2"
Sensor
Rod
Pilot
Burner

Ignitor
Figure 39 - Pilot Assembly
Electronic Ignition System)

patterns often.
PILOT ASSEMBLY
The pilot assembly is factory preset for
   
occurred during shipping and handling. Call

if necessary.
-
tion to sensing devices should be as shown
in Figures 38 and 39 respectively.
   


If your pilot assembly does not meet these
requirements:
 To Turn Off Gas to
Appliance
• see sections under Troubleshooting
page 25
Figure 40 - Typical Flame Pattern
Figure 41 - Adjusting Air Setting
AIR ADjUSTMENT SETTING
The main burner air shutter opening is factory
set to the following:


-

    
-
properly lighting shutter may require closing.

IMPORTANT: Do not reduce air shutter open-
ing any lower than designed minimum stop
setting of 1/8".
1/8" Minimum
Air Opening
Air
Shutter
Burner
Tube

Screw
BURNER FLAME PATTERNS
  

to unit and will vary depending on installation
type and weather conditions.

-

proper installation and performance. Figure 40

-
scribed:
 To Turn Off Gas to
Appliance
• see Troubleshooting
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