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OPERATING
HEATER
Thermostatically-
Controlled Models
Continued
INSPECTING
BURNERS
TO TURN OFF GAS TO APPLIANCE "
Shutting Off Heater
1. Turn control knob clockwise _ to the OFF position.
Shutting Off Burners Only (pilot stays lit)
1. Turn control knob 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.
MANUAL LIGHTING PROCEDURE
1. Follow steps 1 through 5 under Lighting lnstruclions, page 23.
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, page 23.
Check pilot flame pattern and burner flame patterns often.
PILOT FLAME PA'I'rERN
Figure 25 shows a correct pilot flame pattern. Figure 26 shows an incorrect pilot flame
pattern. The incorrect pilot flame is not touching the thermocouple. This will cause the
thermocouple to cool. When the thermocoupl¢ cools, the heater will shut down.
Pilot Burner
Figure 25. Correct Pilot
Flame Pattern
Figure 26 - Incorrect Pilot
Flame Pattern
If pilot flame pattern is incorrect, as shown in Figure 24
• turn heater off (see To Turn OffGas to Appliance, page 21 [manually-con-
trolled models] or above [thermostat-controlled models])
• see Troubleshooting, pages 25 through 28