110720-01A12For more information, visit www.desatech.comFor more information, visit www.desatech.comOFFPILOTIGNITORLOWHIGH1. STOP! Read the safety information page 11, column 2.2. Make sure equipment shutoff valve is fully open.3. Turn control knob clockwise to the OFF position.4. 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, page 11, column 2. Ifyou don’t smell gas, go to the next step.5. Press in control knob, and turn counterclockwise topilot position. Keep control knob pressed for five seconds.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.• If control knob does not pop up when released, contact aqualified service person or gas supplier for repairs.6. With control knob pressed in, push down and release ignitorbutton. This will light pilot. The pilot is attached to the front ofburner. If needed, keep pressing ignitor button until pilot lights.Note: If pilot does not light, refer to Troubleshooting, pages17 through 19. Also contact a qualified service person orgas supplier for repairs. Until repairs are made, light pilotwith match, see Manual Lighting Procedure, page 13.7. Keep control knob pressed in for 10 seconds after lightingpilot. After 10 seconds, release control knob.Note: If pilot goes out, repeat steps 3 through 7.Figure 20 - Pilot, InfraredHeatersFigure 19 - Control Knob InThe OFF PositionWARNING: When running heater, set controlknob at LOW or HIGH locked positions for doubleburner heater, or ON position for single burner heater..Never set control knob between locked positions.Poor combustion and higher levels of carbon monox-ide may result.CAUTION: Do not try to adjust heating levels byusing the equipment shutoff valve.Slightly press in control knob and turncounterclockwise to the LOW or HIGH positions fordouble burner heater, or ON position for single burner heater.IMPORTANT: Release downward pressure while turning con-trol knob. Control knob will lock at the desired position.LIGHTING INSTRUCTIONSPiezo IgnitorButton Control Knob ThermocoupleIgnitor ElectrodePilotBurnerOPERATING HEATERContinuedTO SELECT HEATING LEVELControl DoubleKnobs BurnersFigure 21 - Burner PatternsShutting Off HeaterTurn control knob clockwise to the OFF position.Shutting Off Burner Only(pilot stays lit)Turn control knob clockwise to the PILOT position.TO TURN OFF GASTO APPLIANCEOPERATING HEATER (Manual Control Infrared Models)For Your Safety Read Before Lighting (Cont.)Lighting InstructionsTo Select Heating LevelTo Turn Off Gas To ApplianceC. 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 inspect theappliance and to replace any part of the control system andany gas control which has been under water.Control SingleKnob BurnerONOFFPILOTOFF