104163-01H55For more information, visit www.desatech.comFor more information, visit www.desatech.comFigure 7 - Hose and Inlet ConnectorFigure 6 - Regulator Position3. Connect hose to valve inlet (see Figure 7). Tighten firmly us-ing a wrench.IMPORTANT: Use extra hose or piping if needed. Install ex-tra hose or piping between hose/regulator assembly and pro-pane tank. You must use the regulator supplied with heater.4. Open propane supply valve on propane tank(s) slowly. Note: Ifnot opened slowly, excess-flow check valve on propane tankwill stop gas flow. You may hear a click from the excess-flowcheck valve closing. If this happens, reset the excess-flow checkvalve by closing propane supply valve and open again slowly.5. Check all connections for leaks. Apply mixture of liquid soapand water to gas joints. Bubbles forming show a leak that mustbe corrected.6. Close propane supply valve.INSTALLATIONContinuedPropaneTankPropaneSupply ValveRegulatorHosePOLFittingVENTILATIONWARNING: Provide at least a one square footopening of fresh, outside air while running heater. Ifproper fresh, outside air ventilation is not provided,carbon monoxide poisoning can occur. Provide properfresh, outside air ventilation before running heater.OPERATIONWARNING: Review and understand the warningsin theSafety Information section, page 2. They areneeded to safely operate this heater. Follow all localcodes when using this heater.Figure 8 - Automatic Control Valve Button and Piezo IgnitorButtonWARNING: Be sure motor and fan are runningbefore pushing in automatic control valve button.Flames could flash outside heater if motor and fan arenot running.6. Push in and hold automatic control valve button (see Figure8). Push piezo ignitor button (see Figure 8). Keep pushing ig-nitor button until the burner lights. When burner lights, keepautomatic control valve button pushed in. Release button after30 seconds. This activates the automatic control system.Note: If heater fails to ignite, hose may have air in it. If so, keepautomatic control valve button pressed and wait 20 seconds. Re-lease automatic control valve button and wait 20 seconds for un-burned fuel to exit heater. Repeat this step.Piezo IgnitorButtonAutomatic ControlValve ButtonTO START HEATER1. Follow all installation, ventilation, and safety information.2. Locate heater on stable and level surface. Make sure strongdrafts do not blow into front or rear of heater.3. Plug power cord of heater into a three-prong, grounded exten-sion cord. Extension cord must be at least six feet long. Exten-sion cord must be UL listed.Extension Cord Wire Size Requirements• Up to 50 ft long, use 18 AWG rated cord.• 51 to 100 ft long, use 16 AWG rated cord.• 101 to 200 ft long, use 14 AWG rated cord.4. Plug extension cord into a 120 volt/60 hertz, 3-hole, groundedoutlet. Motor will start. Fan will turn, forcing air out front of heater.5. Open propane supply valve on propane tank(s) slowly. Note: Ifnot opened slowly, excess-flow check valve on propane tankwill stop gas flow. You may hear a click from the excess-flowcheck valve closing. If this happens, reset the excess-flow checkvalve by closing propane supply valve and open again slowly.INSTALLATIONVENTILATIONOPERATION