Combustion, Ventilation, Fresh Air For, Continued

Contents Save this manual for future reference OWNER’S OPERATION AND INSTALLATION MANUALVENTED NATURAL GAS HEATERS Models GVB35N and GVB50NSECTION CONTENTSPAGE DANGER SAFETYINFORMATION WARNINGSWARNINGS Continued SAFETY INFORMATIONContinued 100353 PRODUCT IDENTIFICATIONFigure 1 - Vented Natural Gas Heater Figure 2 - Vented Natural Gas Heater, Rear ViewUNPACKING FEATURESINSTALLING LOCAL CODESIf you install the heater in a home garage INSTALLING HEATERNever install the heater For convenience and efficiency, install heaterContinued INSTALLING HEATERVENTING HEATER Figure 4 - Improper Venting Systems INSTALLING HEATERContinued VENTING HEATER continuedVent Types INSTALLING HEATERContinued VENTING HEATER continued Proper Size VentContinued INSTALLINGCONNECTING TO GAS SUPPLY HEATERFor purposes of input adjustment INSTALLING HEATERContinued HEATER INSTALLINGPressure Testing Gas Supply Piping System Pressure Testing Heater Gas ConnectionsContinued INSTALLING HEATERINSTALLING GLASS PANEL Figure 9 - Removing Lower Front Access Panel8.Repeat steps 4 through 7 for all glass panels INSTALLINGHEATER ContinuedDANGER FRESH AIR FOR COMBUSTION AND VENTILATIONCarbon monoxide poisoning may lead to death Continued COMBUSTIONVENTILATION FRESH AIR FORDANGER FRESH AIR FORCOMBUSTION VENTILATIONContinued COMBUSTIONVENTILATION FRESH AIR FORFOR YOUR SAFETY READ BEFORE LIGHTING OPERATING HEATERLIGHTING INSTRUCTIONS Figure 17 - Viewing Pilot OPERATING HEATERContinued ContinuedTO TURN OFF GAS TO APPLIANCE MANUAL LIGHTING PROCEDUREOPERATING HEATER ContinuedContinued INSPECTING PILOT AND BURNER FLAMEPILOT FLAME PATTERN BURNER FLAME PATTERNContinued INSPECTING PILOT AND BURNER FLAMEPILOT CLEANING AND MAINTENANCECABINET COMBUSTION CHAMBER AND BURNERSHOOTING TROUBLEand Maintenance, page TROUBLE Cleaning and Mainteing and Maintenance Cleaning and MainteCleaning TROUBLE- SHOOTINGing and Maintenance Maintenance, pageContinued ing and MaintenanceTROUBLE SHOOTINGRemoving Control Valve and Burner Tube SERVICE PROCEDURESContinued SERVICE PROCEDURESContinued Removing BurnerContinued SERVICE PROCEDURESChanging Burner Orifice SERVICE HINTS TECHNICAL SERVICESPECIFICATIONS CENTRALS REPLACEMENTORDERING PARTSBLOWER KIT - PART NUMBER GA6010 ACCESSORIESMANUAL SHUTOFF VALVE - GA5010 Burner PARTS LISTAssembly ILLUSTRATEDGVB35N PARTS LIST Burner AssemblyPART NUMBER FOR GVB50Nmanual ILLUSTRATED PARTS LIST Cabinet AssemblyPage DESA WARRANTY INFORMATION