Safety Information, WARNINGS Continued

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Contents

OWNER’S OPERATION AND INSTALLATION MANUAL VENTED NATURAL GAS HEATERSModels GVB35N and GVB50N Save this manual for future reference SECTION CONTENTSPAGE SAFETY INFORMATIONWARNINGS DANGER WARNINGS Continued SAFETY INFORMATIONContinued PRODUCT IDENTIFICATION Figure 1 - Vented Natural Gas HeaterFigure 2 - Vented Natural Gas Heater, Rear View 100353 FEATURES INSTALLINGLOCAL CODES UNPACKING INSTALLING HEATER Never install the heaterFor convenience and efficiency, install heater If you install the heater in a home garage Continued INSTALLING HEATERVENTING HEATER INSTALLING HEATER ContinuedVENTING HEATER continued Figure 4 - Improper Venting Systems INSTALLING HEATER ContinuedVENTING HEATER continued Proper Size Vent Vent Types INSTALLING CONNECTING TO GAS SUPPLYHEATER Continued For purposes of input adjustment INSTALLING HEATERContinued INSTALLING Pressure Testing Gas Supply Piping SystemPressure Testing Heater Gas Connections HEATER INSTALLING HEATER INSTALLING GLASS PANELFigure 9 - Removing Lower Front Access Panel Continued INSTALLING HEATERContinued 8.Repeat steps 4 through 7 for all glass panels DANGER FRESH AIR FOR COMBUSTION AND VENTILATIONCarbon monoxide poisoning may lead to death COMBUSTION VENTILATIONFRESH AIR FOR Continued FRESH AIR FOR COMBUSTIONVENTILATION DANGER COMBUSTION VENTILATIONFRESH AIR FOR Continued FOR YOUR SAFETY READ BEFORE LIGHTING OPERATING HEATERLIGHTING INSTRUCTIONS OPERATING HEATER ContinuedContinued Figure 17 - Viewing Pilot MANUAL LIGHTING PROCEDURE OPERATING HEATERContinued TO TURN OFF GAS TO APPLIANCE INSPECTING PILOT AND BURNER FLAME PILOT FLAME PATTERNBURNER FLAME PATTERN Continued INSPECTING PILOT AND BURNER FLAME Continued CLEANING AND MAINTENANCE CABINETCOMBUSTION CHAMBER AND BURNER PILOT SHOOTING TROUBLEand Maintenance, page Cleaning and Mainte ing and MaintenanceCleaning and Mainte TROUBLE TROUBLE- SHOOTING ing and MaintenanceMaintenance, page Cleaning ing and Maintenance TROUBLESHOOTING Continued SERVICE PROCEDURES Removing Control Valve and Burner Tube SERVICE PROCEDURES ContinuedRemoving Burner Continued Continued SERVICE PROCEDURESChanging Burner Orifice SERVICE HINTS TECHNICAL SERVICESPECIFICATIONS REPLACEMENT ORDERINGPARTS CENTRALS BLOWER KIT - PART NUMBER GA6010 ACCESSORIESMANUAL SHUTOFF VALVE - GA5010 PARTS LIST AssemblyILLUSTRATED Burner PARTS LIST Burner Assembly PART NUMBER FORGVB50N GVB35N ILLUSTRATED PARTS LIST Cabinet Assembly manualPage WARRANTY INFORMATION DESA

Desa GVB35N, GVB50N installation manual Safety Information, WARNINGS Continued

Models: GVB35N GVB50N