Owner’s manual, Inspecting burners, Operating heater – Desa CGS2718N User Manual

Page 17: Continued

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17

107067

OWNER’S MANUAL

INSPECTING
BURNERS

Check pilot flame pattern and burner flame
patterns often.

PILOT FLAME PATTERN

Figure 27 shows a correct pilot flame pattern.
Figure 28 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 28

• turn heater off (see To Turn Off Gas to

Appliance, page 16 [manually-controlled
models] or column 2, this page [thermo-
stat-controlled models])

• see Troubleshooting, pages 19 through 21

Figure 27 - Correct Pilot Flame Pattern

Figure 28 - 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.

5.

Turn control knob counterclockwise

C-clockwise

to the PILOT position.

Press in control knob for five (5) sec-
onds (see Figure 25).

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 pi-
lot again.

8.

Turn control knob counterclockwise

C-clockwise

to desired heating level. The

burners should light. Set control knob
to any heat level between HI and LO.

OPERATING
HEATER

Continued

CAUTION: Do not try to adjust

heating levels by using the equip-
ment shutoff valve.

LO

HI

OFF

Pilot

Figure 25 - Control Knob and Ignitor But-
ton Location

Figure 26 - Pilot

Control Knob

Ignitor Button

TO TURN OFF GAS

TO APPLIANCE

Shutting Off Heater

Turn control knob clockwise

Clockwise

to

the OFF position.

Shutting Off Burners Only (pilot
stays lit)

Turn control knob clockwise

Clockwise

to

the PILOT position.

THERMOSTAT

CONTROL

OPERATION

(Thermostat-Controlled

Models Only)

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.

1.

Follow steps 1 through 5 under Light-
ing Instructions
, pages 16 and 17.

2.

Depress control knob and light pilot
with match.

3.

Keep control knob pressed in for 30
seconds after lighting pilot. After 30
seconds, release control knob. Now
follow step 8 under Lighting Instruc-
tions
, column 1.

MANUAL LIGHTING

PROCEDURE

Thermocouple

Ignitor Electrode

Pilot Burner

Thermocouple

Pilot Burner

Thermocouple

Pilot Burner

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