Owner’s manual, Operating heater, Inspecting burner – Desa RP30D User Manual

Page 11: Continued

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11

103569

OWNER’S MANUAL

1/2 HEAT SHIELD
OR GLASS HEIGHT

INCORRECT FLAME PATTERN

AT HIGH POSITION

OPERATING
HEATER

Continued

CAUTION: Do not try to ad-

just heating levels by using the
manual shutoff valve.

8.

Turn control knob counterclockwise

to the LOW position. The

main burner should light. Set control
knob to any heat level between
HIGH and LOW. To turn control
knob from LOW to a higher setting,
press in the control knob and turn
counterclockwise

.

Note

: Both HIGH and LOW are

locked positions. You must press in
control knob before turning it from
these positions.

TO TURN OFF GAS

TO APPLIANCE

Shutting Off Heater

1.

Turn control knob clockwise
to the PILOT position.

2.

Press in control knob and turn clock-
wise

to the OFF position.

3.

Turn off all electric power to the ap-
pliance if service is to be performed.

Shutting Off Burner Only (pilot
stays lit)

1.

Turn control knob clockwise
to the PILOT position.

MANUAL LIGHTING

PROCEDURE

1.

Remove front panel (see Figure 6,
page 7).

2.

Follow steps 1 through 5 under Light-
ing Instructions
, page 10.

3.

With control knob pressed in, strike
match. Hold match to pilot until pi-
lot lights.

4.

Keep control knob pressed in for 30
seconds after lighting pilot. After 30
seconds, release control knob.

5.

Replace front panel.

INSPECTING
BURNER

Check pilot flame pattern and burner flame
pattern often.

PILOT FLAME PATTERN

Figure 18 shows a correct pilot flame pat-
tern. Figure 19 shows an incorrect pilot
flame pattern. The incorrect pilot flame is
not touching the thermocouple. This will
cause the thermocouple to cool. When the
thermocouple cools, the heater will shut
down.

Figure 18 - Correct Pilot Flame Pattern

Figure 19 - Incorrect Pilot Flame Pattern

NOTICE: Do not mistake orange
flames with yellow tipping. Dirt
or other fine particles enter the
heater and burn causing brief
patches of orange flame.

Thermocouple

Pilot Burner

Pilot Burner

Thermocouple

Figure 20 - Correct Burner Flame Pattern

Figure 21 - Incorrect Burner Flame Pattern

If pilot flame pattern is incorrect, as shown
in Figure 19

• turn heater off (see To Turn Off Gas to

Appliance,)

• see Troubleshooting, pages 12 through 14

BURNER FLAME PATTERN

Figure 20 shows a correct burner flame
pattern. Figure 21 shows an incorrect burner
flame pattern. The incorrect burner flame
pattern shows yellow tipping of the flame. It
also shows the flame higher than 1/2 the
heat shield height.

WARNING: If yellow tipping

occurs, your heater could pro-
duce increased levels of carbon
monoxide. If burner flame pat-
tern shows yellow tipping, follow
instructions at bottom of this
page.

Yellow
Tipping

CORRECT FLAME PATTERN

AT HIGH POSITION

1/2 HEAT SHIELD
OR GLASS HEIGHT

If burner flame pattern is incorrect, as shown
in Figure 21

• turn heater off (see To Turn Off Gas to

Appliance

• see Troubleshooting, pages 12 through 14

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