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UNVENTED PROPANE/LP GAS LOG HEATER
OPERATING
HEATER
Continued
5. Turn control knob counterclockwise
to the PILOT position.
C-clockwise
Press in control knob for five (5) sec-
onds (see Figure 33).
Note: You may be running this
heater for the first time after hook-
ing up to gas supply. If so, the con-
trol knob may need to be pressed in
for 30 seconds or less. This will allow
air to bleed from the gas system.
• If control knob does not pop out when
released, contact a qualified service
person or gas supplier for repairs.
6. With control knob pressed in, press
and release ignitor button. This will
light pilot. The pilot is attached to the
front burner. If needed, keep press-
ing ignitor button until pilot lights.
Note: If pilot does not stay lit, con-
tact a qualified service person or gas
supplier for repairs. Until repairs are
made, light pilot with match. To light
pilot with match, see Manual Light-
ing Procedure.
7. Keep control knob pressed in for 30
seconds after lighting pilot. After 30
seconds, release control knob.
Note: If pilot goes out, repeat steps
3 through 7. This heater has a safety
interlock system. Wait one (1) minute
for system to reset before lighting
pilot again.
8. Turn control knob counterclockwise
to desired heating level. The
C-clockwise
burners should light. Set control knob
to any heat level between HI and LO.
CAUTION: Do not try to adjust
heating levels by using the
manual shutoff valve.
Ignitor Button
Figure 33 - Control Knob and Ignitor But-
ton Location
CGS2718P, CGS3124P, CLD3018P,
CLD3924PT, and CCL3930PT(A)
Thermocouple
Figure 34 - Pilot
TO TURN OFF GAS
Shutting Off Heater
Turn control knob clockwise
the OFF position.
Shutting Off Burners Only (pilot
stays lit)
Turn control knob clockwise
the PILOT position.
The thermostat control knob can be set to
any comfort level between Hi and Lo. The
thermostat will gradually modulate the
heat output and flame height from higher
to lower settings, or pilot, in order to
maintain the comfort level you select.
The ideal comfort setting will vary by
household depending upon the amount of
space to be heated, the output of the
central heating system, etc.
Note: Selecting the Hi setting with the
control knob will cause the burner to
remain fully on, without modulating down
in most cases.
MANUAL LIGHTING
1. Follow steps 1 through 5 under Light-
ing Instructions, pages 17 and 18.
2. Depress control knob and light pilot
with match.
3. Keep control knob pressed in for 30
seconds after lighting pilot. After 30
Control Knob
seconds, release control knob. Now
follow step 8 under Lighting Instruc-
tions, column 1.
Ignitor Electrode
Pilot Burner
TO APPLIANCE
Clockwise
Clockwise
THERMOSTAT
CONTROL
OPERATION
PROCEDURE
18
INSPECTING
BURNERS
Check pilot flame pattern and burner flame
patterns often.
PILOT FLAME PATTERN
Figure 35 shows a correct pilot flame pattern.
Figure 36 shows an incorrect pilot flame
pattern. The incorrect pilot flame is not touch-
ing the thermocouple. This will cause the
thermocouple to cool. When the thermo-
couple cools, the heater will shut down.
If pilot flame pattern is incorrect, as shown
in Figure 36
to
• turn heater off (see To Turn Off Gas to
Appliance, page 17 [manually-controlled
models] or column 2, this page [thermo-
statically-controlled model])
• see Troubleshooting, pages 20 through 22
to
Thermocouple
Figure 35 - Correct Pilot Flame Pattern
Thermocouple
Pilot Burner
Figure 36 - Incorrect Pilot Flame Pattern
BURNER PRIMARY AIR
HOLES
Air is drawn into the burner through the
holes in the fitting at the entrance to the
burner. These holes may become blocked
with dust or lint. Periodically inspect these
holes for any blockage and clean as neces-
sary. Blocked air holes will create soot.
Pilot Burner
104386
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