Safety Information, WARNINGS Continued

Contents OWNER’S OPERATION AND INSTALLATION MANUAL VENTED NATURAL GAS HEATERSModels GVB35N and GVB50N Save this manual for future referenceSECTION CONTENTSPAGE SAFETY INFORMATIONWARNINGS DANGERWARNINGS Continued SAFETY INFORMATIONContinued PRODUCT IDENTIFICATION Figure 1 - Vented Natural Gas HeaterFigure 2 - Vented Natural Gas Heater, Rear View 100353FEATURES INSTALLINGLOCAL CODES UNPACKINGINSTALLING HEATER Never install the heaterFor convenience and efficiency, install heater If you install the heater in a home garageContinued INSTALLING HEATERVENTING HEATER INSTALLING HEATER ContinuedVENTING HEATER continued Figure 4 - Improper Venting SystemsINSTALLING HEATER ContinuedVENTING HEATER continued Proper Size Vent Vent TypesINSTALLING CONNECTING TO GAS SUPPLYHEATER ContinuedFor purposes of input adjustment INSTALLING HEATERContinued INSTALLING Pressure Testing Gas Supply Piping SystemPressure Testing Heater Gas Connections HEATERINSTALLING HEATER INSTALLING GLASS PANELFigure 9 - Removing Lower Front Access Panel ContinuedINSTALLING HEATERContinued 8.Repeat steps 4 through 7 for all glass panelsDANGER FRESH AIR FOR COMBUSTION AND VENTILATIONCarbon monoxide poisoning may lead to death COMBUSTION VENTILATIONFRESH AIR FOR ContinuedFRESH AIR FOR COMBUSTIONVENTILATION DANGERCOMBUSTION VENTILATIONFRESH AIR FOR ContinuedFOR YOUR SAFETY READ BEFORE LIGHTING OPERATING HEATERLIGHTING INSTRUCTIONS OPERATING HEATER ContinuedContinued Figure 17 - Viewing PilotMANUAL LIGHTING PROCEDURE OPERATING HEATERContinued TO TURN OFF GAS TO APPLIANCEINSPECTING PILOT AND BURNER FLAME PILOT FLAME PATTERNBURNER FLAME PATTERN ContinuedINSPECTING PILOT AND BURNER FLAME ContinuedCLEANING AND MAINTENANCE CABINETCOMBUSTION CHAMBER AND BURNER PILOTSHOOTING TROUBLEand Maintenance, page Cleaning and Mainte ing and MaintenanceCleaning and Mainte TROUBLETROUBLE- SHOOTING ing and MaintenanceMaintenance, page Cleaninging and Maintenance TROUBLESHOOTING ContinuedSERVICE PROCEDURES Removing Control Valve and Burner TubeSERVICE PROCEDURES ContinuedRemoving Burner ContinuedContinued SERVICE PROCEDURESChanging Burner Orifice SERVICE HINTS TECHNICAL SERVICESPECIFICATIONS REPLACEMENT ORDERINGPARTS CENTRALSBLOWER KIT - PART NUMBER GA6010 ACCESSORIESMANUAL SHUTOFF VALVE - GA5010 PARTS LIST AssemblyILLUSTRATED BurnerPARTS LIST Burner Assembly PART NUMBER FORGVB50N GVB35NILLUSTRATED PARTS LIST Cabinet Assembly manualPage WARRANTY INFORMATION DESA