Desa VMH26TPB 14 AIR for Combustion and Ventilation, Providing Adequate Ventilation

Page 5

OWNER’S MANUAL

AIR FOR COMBUSTION AND VENTILATION

WARNING: This heater shall notbeinstalledinaconfinedspace or unusually tight construction unless provisions are provided for adequate combustion and venti- lation air. Read the following in- structions to insure proper fresh air for this and other fuel-burning appliances in your home.

Today’s homes are built more energy effi- cient than ever. New materials, increased insulation,andnewconstructionmethodshelp 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 com- bustion and ventilation.

Exhaust fans, fireplaces, clothes dryers, and fuel burning appliances draw air from the house to operate. You must provide ad- equate 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, Sec- tion 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 win- dows may provide enough fresh air for combustion and ventilation. However, in buildings of unusually tight construction, you must provide additional fresh air.

Unusually tight construction is de- fined as construction where:

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

b.weather stripping has been added on openable windows and doors and

c.caulking or sealants are applied to areas such as joints around window and door frames, be- tween sole plates and floors, be- tween 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 ad- ditional fresh air. See Ventilation Air From Outdoors, page 7.

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

Confined and Unconfined Space

The National Fuel Gas Code, ANSI Z223.1.3/ 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 in- stalled 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 con- sidered a part of the unconfined space.

*Adjoining rooms are communicating only if there are doorless passageways or ventila- tion grills between them.

Continued

107030

5

Page 4 Page 6
Image 5
Page 4 Page 6
Contents What to do if YOU Smell GAS Shown with Optional Cabinet Mantel/Hearth Base AccessoryCompact Classic Hearth Fireplace Safety InformationUnpacking Product FeaturesLocal Codes Product IdentificationInstalling Log AssemblyAssembling Fireplace Assembling HoodProviding Adequate Ventilation AIR for Combustion and VentilationUnusually Tight Construction Confined and Unconfined SpaceDetermining if You Have a Confined or Unconfined Space AIR for Combustion VentilationDetermining FRESH-AIR Flow for Fireplace Location Ventilation Air From Outdoors Ventilation AIRVentilation Air From Inside Building Installation Items InstallationCheck GAS Type Locating FireplaceLocate fireplace where moving vehicle will not hit it BUILT-IN Fireplace InstallationOptional Mantel Mantel Clearances for Built-In InstallationRaise the mantel to an accept Able heightRemoving Upper Louver Assembly Installing Blower Accessory GA3450TInstalling Blower Assembly Assembling Brass Trim Brass trim shipped with mantelInstall the switch plate on the valve Extension Cord For Built-In InstallationThread inlet connection and the flexible gas line provided Connecting to GAS SupplyAttaching Wood Base to Solid Floor Valve should be accessible Connecting Equipment Shutoff Valve to Heater ControlInstallation Items Needed Checking GAS Connections Pressure Testing Fireplace Gas ConnectionsPressure Testing Gas Supply Piping System Lighting Instructions For Your Safety Read Before LightingOperating Fireplace Inspecting Burner Cleaning Burner Injector Holder and Pilot AIR Inlet Hole Cleaning and MaintenanceBurner Flame Pattern CabinetObserved Problem Possible Cause Remedy TroubleshootingMaintenance, Gas leak. See Warning statement at TopReplacement Parts SpecificationsService Hints Technical ServiceVMH26TPB Illustrated Parts BreakdownKEY Description QTY Parts ListAccessories 107030 Warranty Information
Top Page Image Contents