Desa VI33NR VI33PR AIR for Combustion and Ventilation, Providing Adequate Ventilation

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AIR FOR COMBUSTION AND VENTILATION

Providing Adequate Ventilation

5

AIR FOR COMBUSTION AND VENTILATION

WARNING: This heater shall not be installed in a confined space or unusually tight construction un- less provisions are provided for adequate combus- tion and ventilation air. Read the following instruc- tions to insure proper fresh air for this and other fuel- burning appliances in your home.

Today’s homes are built more energy efficient than ever. New materi- als, increased insulation, and new construction methods help reduce heat loss in homes. Home owners weather strip and caulk around windows and doors to keep the cold air out and the warm air in. During heating months, home owners want their homes as airtight as possible.

While it is good to make your home energy efficient, your home needs to breathe. Fresh air must enter your home. All fuel-burning appliances need fresh air for proper combustion and ventilation.

Exhaust fans, fireplaces, clothes dryers, and fuel burning appliances draw air from the house to operate. You must provide adequate fresh air for these appliances. This will insure proper venting of vented fuel-burning appliances.

PROVIDING ADEQUATE VENTILATION

The following are excerpts from National Fuel Gas Code ANSI Z223.1/NFPA 54, Section 5.3, Air for Combustion and Ventilation.

All spaces in homes fall into one of the three following ventilation classifications:

1.Unusually Tight Construction

2.Unconfined Space

3.Confined Space

The information on pages 5 through 7 will help you classify your space and provide adequate ventilation.

Unusually Tight Construction

The air that leaks around doors and windows may provide enough fresh air for combustion and ventilation. However, in buildings of unusually tight construction, you must provide additional fresh air.

Unusuallytightconstructionisdefinedasconstructionwhere:

a.walls and ceilings exposed to the outside atmosphere have a continuous water vapor retarder with a rating of one perm (6 x 10-11kg per pa-sec-m2) or less with openings gasketed or sealed and

b.weather stripping has been added on openable win- dows and doors and

c.caulking or sealants are applied to areas such as joints around window and door frames, between sole plates and floors, between wall-ceiling joints, between wall panels, at penetrations for plumbing, electrical, and gas lines, and at other openings.

If your home meets all of the three criteria above, you must provide additional fresh air. See Ventilation Air From Outdoors, page 7.

If your home does not meet all of the three criteria above, proceed to Determining Fresh-Air Flow for Fireplace Location, page 6.

Confined and Unconfined Space

The National Fuel Gas Code ANSI Z223.1/NFPA 54 defines a confined space as a space whose volume is less than 50 cubic feet per 1,000 Btu per hour (4.8 m3 per kw) of the aggregate input rating of all appliances installed in that space and an unconfined space as a space whose volume is not less than 50 cubic feet per 1,000 Btu per hour (4.8 m3 per kw) of the aggregate input rating of all appliances installed in that space. Rooms communicating directly with the space in which the appliances are installed*, through openings not furnished with doors, are considered a part of the unconfined space.

*Adjoining rooms are communicating only if there are doorless passageways or ventilation grills between them.

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111285-01B

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Contents What to do if YOU Smell GAS OWNER’S Operation Installation ManualUnvented VENT-FREE GAS Fireplace Insert Safety Information Table of ContentsLocal Codes Product Features Remote Control AccessoriesProduct Identification UnpackingProviding Adequate Ventilation AIR for Combustion and VentilationUnusually Tight Construction Confined and Unconfined SpaceVentilation AIR Determining FRESH-AIR Flow for Heater LocationDetermining if You Have a Confined or Unconfined Space Ventilation Air From Inside BuildingVentilation Air From Outdoors InstallationCheck GAS Type Electrical Hookup Installing Surround KIT GS38 or GS43Blower Accessory Installation Clearances Installing HoodInstallation Items Needed Installing GAS Piping to Fireplace LocationMantel Clearances for Insert Installation Vent Pointing Down Connecting Fireplace Insert to GAS SupplyChecking GAS Connections Pressure Testing Gas Supply Piping SystemAssembling and Attaching Trim Fireplace Insert Installation Into Masonry FireplacePressure Testing Fireplace Insert Gas Connections Attaching Trim to Fireplace Surround Installing LogsInstalling 9-Volt Battery Not Included in Receiver Installing 9-VOLT BatteriesLighting Instructions For Your Safety Read Before LightingOperating Fireplace Insert To Turn OFF GAS To Appliance Manual Lighting ProcedureOptional HAND-HELD Remote Operation ON/OFF Series Model GhrcbAuto Thermostatic Mode Manual ModeSafety Features Thermostat Series Model GhrctbPilot Flame Pattern Inspecting BurnersBurner Flame Pattern Burner Primary AIR HolesLogs Cleaning MaintenanceCleaning Burner Injector Holder and Pilot AIR Inlet Hole Specifications Wiring DiagramsObserved Problem Possible Cause TroubleshootingObserved Problem Possible Cause Remedy Gas leak. See Warning statement Technical Service Replacement PartsService Hints Parts Under WarrantyModels VI33NR and VI33PR Illustrated Parts BreakdownKEY Part Number VI33NR VI33PR Description QTY Parts ListFireplace Insert VI33NR and VI33PR KEY Part Number Description QTY WALL-MOUNT Thermostat Switch GWMT1 Receiver and HAND-HELD Remote Control KIT Ghrcb SeriesWALL-MOUNT ON/OFF Switch GWMS2 Cleaning KIT GCKOwners Registration Form Tape 111285-01B Warranty Information
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