110399-01BFor more information, visit www.desatech.comFor more information, visit www.desatech.com2121C. Use only your hand to push in or turn the gas control knob.Never use tools. If the knob will not push in or turn byhand, don’t try to repair it, call a qualified service techni-cian or gas supplier. Force or attempted repair may resultin a fire or explosion.D. Do not use this appliance if any part has been under water.Immediately call a qualified service technician to inspectthe appliance and to replace any part of the control systemand any gas control which has been under water.1. STOP! Read the safety information, starting in column 2,page 20.2. Make sure equipment shutoff valve is fully open.3. Set selector switch in the OFF position.WARNING: Burners will come on automaticallywithin one minute when the selector switch is in theON position after the pilot is lit.LIGHTING INSTRUCTIONSWARNING• If fireplace has glass doors, never operate thisheater with glass doors closed. If you operateheater with doors closed, heat buildup inside fire-place will cause glass to burst. Also if fireplaceopening has vents at the bottom, you must openthe vents before operating heater.• You must operate this heater with a fireplace screenin place. Make sure fireplace screen is closedbefore running heater.NOTICE: During initial operation of new heater, burn-ing logs will give off a paper-burning smell. Orangeflame will also be present. Open damper or window tovent smell. This will only last a few hours.Note: Home owners generally prefer to operate their heaterwith the chimney damper closed. This will put all the heat intothe room. However, there may be times you will desire the fullflames of the HI heat setting but will find the heat outputexcessive. You can open the chimney damper (if you have one)fully or partially to release some of the heat.WARNING: Damper handle will be hot if heaterhas been running.Figure 34 - Control Knob and Ignitor Button Location (Shown asSupplied, No Control Options)OPERATING HEATERContinuedFlame Adjustment KnobOFFPILOTONLOIHAUTOOFFONControl KnobIgnitor Button Selector Switch in OFF PositionOPERATING HEATER (REMOTE-READY MODELS)For Your Safety Read Before Lighting (Cont.)Lighting Instructions4. Press in and turn control knob clockwise to theOFF position (see Figure 34).5. Wait five (5) minutes to clear out any gas. Then smell forgas, including near the floor. If you smell gas, STOP! Fol-low “B” in the safety information, starting in column 2,page 19. If you don’t smell gas, go to the next step.6. Press in and turn control knob counterclockwiseto the PILOT position. Press in control knob for five (5)seconds (see Figure 34).Note: You may be running this heater for the first timeafter hooking up to gas supply. If so, the control knob mayneed to be pressed in for 30 seconds or more. This will al-low air to bleed from the gas system.7. With control knob pressed in, press and release ignitorbutton. This will light pilot. The pilot is attached to the frontburner. If needed, keep pressing ignitor button until pilotlights.Note: If pilot does not stay lit, contact a qualified serviceperson or gas supplier for repairs. Until repairs are made,light pilot with match. To light pilot with match, see ManualLighting Procedure, page 22.8. Keep control knob pressed in for 30 seconds after lightingpilot. After 30 seconds, release control knob.• If control knob does not pop out when released, contacta qualified service person or gas supplier for repairs.Note: If pilot goes out, repeat steps 4 through 8.9. Slightly push in and turn control knob counterclockwiseto the ON position.10. Wait one minute and switch selector switch to the ON posi-tion to light burners.Note: AUTO is only functional whenusing GWMT1 or GWMS2 optional accessories.11. Set flame adjustment knob to any level between HI and LO.