26
ADJUSTMENTS
PILOT BURNER ADJUSTMENT
Adjust the pilot screw to provide properly sized fl ame. Turn in a clockwise direction to reduce the gas fl ow.
Check Pressure Readings: (Fig. 76)
Inlet pressure can be checked by turning screw (A)
Outlet pressure can be checked the same as above using screw (B). Gauge should read 3.5” water column for natural gas or 10” water column for propane. Check that main burner is operating on “HI”.
AFTER TAKING PRESSURE READINGS, BE SURE TO TURN SCREWS CLOCKWISE FIRMLY TO RESEAL. DO NOT OVER- TORQUE.
Leak test with a soap and water solution.
FLAME CHARACTERISTICS
It is important to peri-
odically perform a visual
3/8” - 1/2”
check of the pilot and burner flames. Compare them to the illustration below.
FIGURE 78
FIGURE 76
B A
FIGURE 79
PILOT
SCREW
VENTURI ADJUSTMENT
FIGURE 77
Closing the air shutter will cause a more yellow flame, but can lead to carboning. Opening the air shutter will cause a more blue fl ame, but can cause fl ame lifting from the burner ports. The fl ame may not appear yellow immediately; al- low 15 to 30 minutes for the fi nal fl ame color to be established.
FIGURE 80
AIR SHUTTER
OPENINGS
LP | 1/2” |
NG | 1/16” |
AIR
SHUTTER
OPENING
MAINTENANCE
TURN OFF THE GAS AND ELECTRICAL POWER BEFORE
SERVICING THE FIREPLACE.
CAUTION: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing. This fi replace and its venting system should be inspected before use and at least annually by a qualifi ed service person. The fi replace area must be kept clear and free of combustible materials, gasoline or other fl ammable vapors and liquids. The fl ow of combustion and ventilation air must not be obstructed.
1.In order to properly clean the burner and pilot assembly, remove the log and burner to expose both assemblies.
2.Keep the control compartment, log, burner, air shutter opening and the area surrounding the logs clean by vacuuming or brushing, at least once a year.
3.Check to see that all burner ports are burning. Clean out any of the ports which may not be burning or are not burning properly.
4.Check to see that the pilot fl ame is large enough to engulf the thermocouple and thermopile and reaches toward the burner with the third jet.
5.Replace the cleaned log and burner.
6.Check to see that the main burner ignites completely on all open- ings when the gas knob for the burner is turned on. A 5 to 10 second total
7.Check that the gasketing on the sides, top and bottom of the door is not broken or missing. Replace if necessary.
8.If for any reason the vent air intake system is disassembled, reinstall and