Desa GVB35N, GVB50N installation manual Installing Heater, Continued, Venting Heater

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VENTING HEATER

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INSTALLING HEATER

Continued

VENTING HEATER

Note: Venting/chimney materials are not supplied with heater.

Manual background WARNING

A qualified service person must install the venting system for this heater. If venting system is not properly installed and maintained, the vent safety shut-off system will pre- vent the heater from running. Follow all local codes.

Manual background WARNING

This heater has a vent safety shut-off system. This system shuts off the heater gas supply if you do not vent heater properly or the venting system is blocked. Do not operate heater if not properly vented. Do not tamper with the vent safety shut-off system. Carbon monoxide poison- ing and death may result.

Manual background WARNING

When venting this heater, follow the safety information listed below.

Never vent heater to another room or inside a build- ing. Only vent heater to the outdoors.

Do not vent heater exhaust to a chimney or flue serving another solid-fuel-burning or gas appliance.

We recommend you use flues classified as prefabri- cated or masonry all-fuel chimney or type-B vent. See Vent Types, page 10.

If using old vent, check vent for soot, creosote, and loose particles. If vent is damaged, repair or replace it before using heater.

Extend the vertical section of vent pipe at least three feet above roof penetration.

Extend the vertical section of vent pipe at least two feet above the highest point of any roof within ten feet.

The horizontal run of vent pipe should rise at least 1/4 inch for each foot of run.

Support the vent pipe at least every five feet along its length. Do not use combustible materials to support vent pipe.

Never extend vent pipe horizontally through outside wall and terminate. You must connect a vertical run of vent pipe to the horizontal run. The vertical run must be at least 25% longer than the horizontal run.

Install vent or chimney cap that is approved for use with vented gas room heaters.

Do not use vent pipe smaller in diameter than that of the heater draft hood outlet.

Do not use dampers in the vent pipes.

Vertical height of vent must be greater than five feet above vent connection at draft hood.

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Contents OWNER’S OPERATION AND INSTALLATION MANUAL VENTED NATURAL GAS HEATERSModels GVB35N and GVB50N Save this manual for future referencePAGE CONTENTSSECTION SAFETY INFORMATIONWARNINGS DANGERContinued SAFETY INFORMATIONWARNINGS Continued 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 garageVENTING HEATER INSTALLING HEATERContinued INSTALLING HEATER ContinuedVENTING HEATER continued Figure 4 - Improper Venting SystemsINSTALLING HEATER ContinuedVENTING HEATER continued Proper Size Vent Vent TypesINSTALLING CONNECTING TO GAS SUPPLYHEATER ContinuedContinued INSTALLING HEATERFor purposes of input adjustment 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 panelsCarbon monoxide poisoning may lead to death FRESH AIR FOR COMBUSTION AND VENTILATIONDANGER COMBUSTION VENTILATIONFRESH AIR FOR ContinuedFRESH AIR FOR COMBUSTIONVENTILATION DANGERCOMBUSTION VENTILATIONFRESH AIR FOR ContinuedLIGHTING INSTRUCTIONS OPERATING HEATERFOR YOUR SAFETY READ BEFORE LIGHTING 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 PILOTand Maintenance, page TROUBLESHOOTING 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 ContinuedChanging Burner Orifice SERVICE PROCEDURESContinued SPECIFICATIONS TECHNICAL SERVICESERVICE HINTS REPLACEMENT ORDERINGPARTS CENTRALSMANUAL SHUTOFF VALVE - GA5010 ACCESSORIESBLOWER KIT - PART NUMBER GA6010 PARTS LIST AssemblyILLUSTRATED BurnerPARTS LIST Burner Assembly PART NUMBER FORGVB50N GVB35NILLUSTRATED PARTS LIST Cabinet Assembly manualPage WARRANTY INFORMATION DESA