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3. Remove lower louver from casing assembly (2 screws). 4. Remove reflector from casing assembly (2 screws). 5. Inspect interior of casing assembly for accumulation of dust, lint or spider webs. If necessary, clean interior of casing assembly with a vacuum cleaner or apply air pressure. Do not damage any components within casing assembly when you are cleaning. 6. Remove main burner orifice from orifice holder. 7. Apply air pressure through main burner orifice and orifice holder to remove dust, lint or spider webs. 8. Apply air pressure into main burner to remove dust, lint or spider webs. 9. As parts are being replaced in reverse order, check for gas leaks at all gas connections before lower louver is replaced onto casing assembly. 16012-1-0504 Page 11 PILOT FLAME CHARACTERISTICS PILOT FLAME CHARACTERISTICS The correct flame will be blue and will extend beyond the 2. Apply air pressure through the holes in the pilot indicated by thermocouple. The flame will surround the thermocouple just the arrows in Figure 12. This will blow out foreign materials below the tip. A slight yellow flame may occur where the pilot such as dust, lint and spider webs. flame and main burner flame meet. Figure 11 Oxygen Depletion Sensor Pilot (Figure 12) When the pilot has a large yellow tip flame, clean the Oxygen Depletion Sensor as follows: 1. Remove pilot from main burner assembly, see "Appliance Maintenance", Page 13. Figure 12 Warning: Never use needles, wires, or similar cylindrical objects toclean the pilot to avoid damaging the calibrated ruby thatcontrols the gas flow. THERMOSTAT OPERATION To ignite main burner, rotate gas control knob counterclockwise toward HI setting. To shut down main burner, rotate gas control knob clockwise toward LO setting. BF-10 The gas control has an input of 10,000 BTU/HR (2.9 KW/H). The hydraulic thermostat bulb is located at the casing assembly bottom. BF-20 The gas control modulates from a minimum input of 8,500 BTU/HR (2.5 KW/H) (LO setting) to a maximum input of 20,000 BTU/HR (5.9 KW/H) for LP gas (HI setting) or 18,000 BTU/HR (5.3 KW/H) for Natural Gas (HI setting). The hydraulic thermostat bulb which is located at the casing assembly bottom adjusts the main burner flame between minimum input and maximum input. BF-30 The gas control modulates from a minimum input of 8,500 BTU/HR (2.5 KW/H) (LO setting) to a maximum input of 30,000 BTU/HR (8.8 KW/H) (HI setting). The hydraulic thermostat bulb which is located at the casing assembly bottom adjusts the main burner flame between minimum input and maximum input. Note: When the hydraulic thermostat bulb is "satisfied" the main burner flame will shut "OFF" with the pilot flame remaining "ON". The LO and HI setting has temperature range of approximately 55°F (12.78°C) to 90°F (32.22°C) , respectively. This is the temperature at the hydraulic thermostat bulb not the room temperature. The owner is advised to determine the particular heat setting that is desired for comfort, as heating requirements are different for every owner. Attention: If the owner does not want the main burner to ignite and turns the gas control knob to the Lo setting, the main burner will still ignite if the temperature at the hydraulic thermostat bulb drops to 55°F (12.78°C). If no heat is desired, turn the gas control knob to the PILOT position. Page 12 16012-1-0504 APPLIANCE MAINTENANCE APPLIANCE MAINTENANCE Glass Removal, Cleaning and Glass Replacement 1. Remove chrome grill from reflector. 2. Slide glass upward to remove glass from chrome grill. 3. Clean glass with a non-abrasive household glass cleaner and warm water. Gas fireplace glass cleaner can also be used. 4. Align glass with rails on chrome grill and slide glass downward into chrome grill. 5. Attach chrome grill onto reflector. Warning: Do not operate unvented room heater without glass/chrome grill attached to reflector. To Remove Pilot From Main Burner Assembly 1. Turn OFF gas supply to the heater. 2. Turn OFF electrical supply to the heater if optional blower, SRB-18T or SRB-30T is installed in heater. 3. Remove lower louver from casing assembly (2 screws). 4. Remove reflector from casing assembly (2 screws). 5. Disconnect pilot tubing from pilot (see Figure 12, Page 12). Grasp nut A with a wrench when removing nut B with a second wrench. 6. Remove pilot from pilot bracket (2 nuts). 7. As parts are being replaced in reverse order, check for gas leaks at all gas connections before lower louver is replaced onto casing assembly. To Remove Main Burner Orifice From Main Burner Assembly 1. Turn off gas supply to the heater. 2. Turn off electrical supply to the heater if optional blower, SRB-18T or SRB-30T is installed in heater. 3. Remove lower louver from casing assembly (2 screws). 4. Remove reflector from casing assembly (2 screws). 5. Disconnect supply tubing from orifice holder. 6. Remove orifice holder from venturi of main burner assembly. 7. Remove main burner orifice from orifice holder. 8. As parts are being...

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