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Even the lowest setting provides realistic flames and glowing embers from two burners. Selecting higher settings produces greater heat output. This results in increased heating comfort. WARNING: Do not operate heater between pilot and high. CAUTION: Do not try to adjust heating levels by using the manual shutoff valve. TO TURN OFF GAS TO APPLIANCE Shutting Off Heater 1. Press in and turn control knob clockwise to the HIGH position. 2. Turn the control knob clockwise to the PILOT position. 3. Press in control knob and turn clockwise to the OFF Position. Shutting Off Burners Only (pilot stays lit) 1. Turn the control knob clockwise to the HIGH position. 2. Press in and turn control knob clockwise to the pilot position. MANUAL LIGHTING PROCEDURE 1. Follow steps 1 through 5 under Lighting Instructions, page 16. 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, column 1. INSPECTING BURNERS Check pilot flame pattern and burner flame patterns often. PILOT FLAME PATTERN 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 thermocouple cools, the heater will shut down. If pilot flame pattern is incorrect, as shown in Figure 26 • turn heater off (see To Turn Off Gas to Appliance, page 16 [Thermostat-Controlled Models] or page 17 or [Variable Manually-Controlled Models]) • see Troubleshooting, pages 19 through 21 Thermocouple Pilot Burner Figure 25 - Correct Pilot Flame Pattern Thermocouple Pilot Burner Figure 26 - Incorrect Pilot Flame Pattern Continued 103425 17 UNVENTED (VENT-FREE) GAS LOG HEATER INSPECTING BURNERS Continued FRONT BURNER FLAME PATTERN Figure 27 shows correct front burner flame pattern. Figure 28 shows incorrect front burner flame pattern. The incorrect burner flame pattern shows yellow tipping at top of blue flame. WARNING: If yellow tipping occurs, your heater could produce increased levels of carbon monoxide. If front burner flame pattern shows yellow tipping, follow instructions at bottom of this page. Yellow flame on rear burner is normal. NOTICE: Do not mistake orange flames with yellow tipping. Dirt or other fine particles are burned by heater, causing brief patches of orange flame. If front burner flame pattern is incorrect, as shown in Figure 28 • turn heater off (see To Turn Off Gas to Appliance, page 16 [Thermostat-Controlled Models] or page 17 [Variable Manually-Controlled Models]) • see Troubleshooting, pages 19 through 21 Figure 27 - Correct Front Burner Flame Pattern Yellow Tipping At Top of Blue Flame Figure 28 - Incorrect Front Burner Flame Pattern CLEANING AND MAINTENANCE WARNING: Turn off heater and let cool before cleaning. CAUTION: You must keep control areas, burners, and circulating air passageways of heater clean. Inspect these areas of heater before each use. Have heater inspected yearly by a qualified service person. Heater may need more frequent cleaning due to excessive lint from carpeting, bedding material, pet hair, etc. CLEANING BURNER INJECTOR HOLDER AND PILOT AIR INLET HOLE The primary air inlet holes allow the proper amount of air to mix with the gas. This provides a clean burning flame. Keep these holes clear of dust, dirt, and lint. Clean these air inlet holes prior to each heating season. Blocked air holes will create soot. We recommend that you clean the unit every 2,500 hours of operation or every three months. We also recommend that you keep the burner tube and pilot assembly clean and free of dust and dirt. To clean these parts we recommend using compressed air no greater than 30 PSI. Your local computer store, hardware store, or home center may carry compressed air in a can. You can use a vacuum cleaner in the blow position. If using compressed air in a can, please follow the directions on the can. If you don't follow directions on the can, you could damage the pilot assembly. 1. Shut off the unit, including the pilot. Allow the unit to cool for at least thirty minutes. 2. Inspect burner, pilot, and primary air inlet holes on injector holder for dust and dirt (see Figure 29). 3. Blow air through the ports/slots and holes in the burner. 4. Check the injector holder located at the end of the burner tube again. Remove any large particles of dust, dirt, lint, or pet hairs with a soft cloth or vacuum cleaner nozzle. 5. Blow air into the primary air holes on the injector holder. 6. In case any large clumps of dust have now been pushed into the burner repeat steps 3 and 4. Clean the pilot assembly also. A yellow tip on the pilot flame indicates dust and dirt in the pilot assembly. There is a small pilot air inlet hole about two inches from where the pilot flame comes out of the pilot assembly (see Figure 30). With the unit off, lightly blow air through the air inlet hole. You may blow ...

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