Inspecting Heater, Pilot Flame Pattern

OPERATING HEATER

Blue Flame

Continued

THERMOSTAT FUNCTION

Thermocouple

Pilot Burner

Setting Desired Room Temperature This remote control system can be thermostati- cally controlled when the remote control is in the thermo mode. The word ROOM must be displayed on the screen.

1.Press MODE button on remote control until ROOM appears. This sets the remote to the thermostat mode.

2.Press and hold the SET button until the desired temperature is displayed. The numbers will increase from 45° to 99° then restart over at 45°. After releasing the SET button, the set room temperature will dis- play for 3 seconds, then default to display the room temperature.

Changing Set Temperature

1.Follow step two under Setting Desired Room Temperature above.

2.Press the MODE button to disengage the thermo mode. The word ROOM does not display when thermo mode is not in operation.

INSPECTING HEATER

Check pilot ﬂame pattern and burner ﬂame pat- tern often.

PILOT FLAME PATTERN

Figure 20 shows a correct pilot ﬂame pattern. Figure 21 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.

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

•turn heater off (see To Turn Off Gas to Appliance, page 14)

•see Troubleshooting, page 17

Note: The pilot ﬂame on natural gas units will have a slight curve, but ﬂame should be blue and have no yellow or orange color.

Figure 20 - Correct Pilot Flame Pattern
	Yellow Flame
Thermocouple	Pilot Burner

Figure 21 - Incorrect Pilot Flame Pattern
BURNER FLAME PATTERN
Figure 22 shows a correct and incorrect burner ﬂame
pattern. If burner ﬂame pattern is incorrect

•turn heater off (see To Turn Off Gas to Appli- ance, page 14)

•see Troubleshooting, page 17

Correct	Incorrect
Flame	Flame
Pattern	Pattern

Figure 22 - Burner Operation

113261-01A

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