Inspecting Burners, Wiring Diagram, Main Burner

OPERATING HEATER

Optional Remote Operation (Cont.)

INSPECTING BURNERS

Pilot Flame Pattern

Main Burner

WIRING DIAGRAM

OPERATING HEATER

Continued

CGHRCTA Series Operation:

2b. Press the AUTO/ON/OFF button on the hand-held remote control (see Figure 35). The lights to the left of the button will show AUTO, ON, or OFF.

•In the ON mode, the burners will ignite. The heater is in manual mode when ON is lit.

•In the AUTO mode, the thermostat in the hand-held re- mote unit controls the room temperature. To increase the room temperature, press the top arrow of the TEMP but- ton. To lower the room temperature, press the bottom arrow of the TEMP button. At higher settings the heater will run longer.

IMPORTANT: This remote control has been specially engineered to take an air temperature sample every 5.5 minutes in the auto mode. It will not respond immedi- ately to the temperature setting being turned up or down. IMPORTANT: The hand-held remote control unit must be near the heater. Do not keep the hand-held remote control unit too close to the heater. The thermostat on the hand-held remote control unit will heat up too quickly and turn the heater off.

INSPECTING BURNERS

Check pilot flame pattern and burner flame patterns often.

PILOT FLAME PATTERN

Figure 36 shows a correct pilot flame pattern. Figure 37 shows an incorrect pilot flame pattern. The incorrect pilot flame is not properly heating the thermocouple. When the thermocouple cools, the heater will shut down.If pilot flame pattern is incorrect, as shown in Figure 37

•turn heater off (see To Turn Off Gas to Appliance, page 17)

•see Troubleshooting, pages 20 through 22

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

Pilot Burner

Propane/LP Gas

Natural Gas

3.To turn the burner off, press the AUTO/ON/OFF button until OFF lights. The pilot will remain lit.

IMPORTANT: To turn the pilot off, manually turn the con- trol knob on the heater to the OFF position.

Flame Adjustment	Control Knob
Knob	in On Position

Figure 36 - Correct Pilot Flame Pattern

Pilot Burner	Pilot Burner

IH			IL
ON		F	P	O
	O			T
OFF	O			O
				O
				N
REMOTE				N
REMOTE
LO

Selector Switch in Remote Position

Figure 34 - Setting the Selector Switch, Control Knob, and Flame Adjustment Knob for Remote Operation

	Thermocouple	Natural Gas
	Propane/LP Gas	Natural Gas
	Propane/LP Gas
	Figure 37 - Incorrect Pilot Flame Pattern

MAIN BURNER

Periodically inspect all burner flame holes with the heater running. All slotted burner flame holes should be open with yellow flame present. All round burner flame holes should be open with a small blue flame present. Some burner flame holes may become blocked by debris or

Shows Temperature Setting

Increases Room

Temperature in