Desa VMH26TPC, VMH26TNC installation manual Ventilation AIR, Ventilation Air From Inside Building

Page 8

AIR FOR COMBUSTION

AND VENTILATION

Continued

A.

Rework worksheet, adding the space of an adjoin-

 

ing room. If the extra space provides an uncon-

 

fined space, remove door to adjoining room or add

 

ventilation grills between rooms. See Ventilation

 

Air From Inside Building.

B.

Vent room directly to the outdoors. See Ventila-

 

tion Air From Outdoors.

Ventilation

 

Grills

Or

into Adjoining

Remove

Room,

Door into

Option 1

Adjoining

 

Room,

 

Option 3

12"

Ventilation Grills

Into Adjoining Room,

Option 2

C. Install a lower Btu/Hr fireplace, if lower Btu/Hr

size makes room unconfined.

If the actual Btu/Hr used is less than the maximum Btu/Hr the space can support, the space is an uncon- fined space. You will need no additional fresh air ven- tilation.

WARNING: If the area in which the heater may be oper- ated is smaller than that defined as an unconfined space or if the building is of unusually tight construction, provide adequate combustion and ventilation air by one of the methods described in the National Fuel Gas Code, ANSI Z223.1/NFPA 54 Section

5.3or applicable local codes.

VENTILATION AIR

Ventilation Air From Inside Building

This fresh air would come from an adjoining un- confined space. When ventilating to an adjoining unconfined space, you must provide two perma- nent openings: one within 12" of the ceiling and one within 12" of the floor on the wall connecting the two spaces (see options 1 and 2, Figure 4). You can also remove door into adjoining room (see option 3, Figure 4). Follow the National Fuel Gas Code, ANSI Z223.1/NFPA 54, Section 5.3, Air for Combustion and Ventilation for required size of ventilation grills or ducts.

12"

Figure 4 - Ventilation Air from Inside Building Shown with Optional Mantel

Ventilation Air From Outdoors

Provide extra fresh air by using ventilation grills or ducts. You must provide two permanent open- ings: one within 12" of the ceiling and one within 12" of the floor. Connect these items directly to the outdoors or spaces open to the outdoors. These spaces include attics and crawl spaces. Follow the National Fuel Gas Code, ANSI Z223.1/NFPA 54, Section 5.3, Air for Combustion and Ventilation for required size of ventilation grills or ducts.

IMPORTANT: Do not provide openings for inlet or outlet air into attic if attic has a thermostat-con- trolled power vent. Heated air entering the attic will activate the power vent.

 

Outlet

Ventilated

 

Attic

 

Air

 

 

Outlet

 

 

Air

 

To Attic

 

 

 

 

To

 

 

Crawl

Inlet

 

Space

 

 

Air

 

 

 

Inlet Air

Ventilated

 

Crawl Space

 

 

Figure 5 - Ventilation Air from Outdoors

Shown with Optional Mantel

8

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Contents Shown with Optional Cabinet Mantel/Hearth Base Accessory What to do if YOU Smell GASTable of Contents Safety Information Local Codes Product IdentificationUnpacking Product FeaturesAssembly AIR for Combustion Ventilation Providing Adequate VentilationAssembling Hood Unusually Tight ConstructionDetermining if You Have a Confined or Unconfined Space Determining FRESH-AIR Flow for Fireplace LocationConfined and Unconfined Space Ventilation Air From Outdoors Ventilation AIRVentilation Air From Inside Building Check GAS Type InstallationInstallation Items BUILT-IN Fireplace Installation Locating FireplaceRough Opening for Installing Wall Optional Mantel Installation Mantel Clearances for Built-In InstallationInstalling Blower Accessory GA3450T Removing Upper Louver AssemblyAssembling Perimeter Trim Trim Shipped with Mantel Removing Valve Cover ShieldInstalling Blower Assembly Removing Valve Cover ShieldInstalling Switch Plate to Valve Cover Shield For Built-In InstallationExtension Cord Connecting to GAS SupplyAttaching Wood Base to Solid Floor Connecting Equipment Shutoff Valve to Heater Control Installation Items NeededChecking GAS Connections Pressure Testing Gas Supply Piping SystemPressure Testing Fireplace Gas Connections Lighting Instructions For Your Safety Read Before LightingOperating Fireplace Manual Lighting Procedure To Turn OFF GAS To ApplianceThermostat Control Operation Shutting Off FireplaceInspecting Burner Operating BlowerBurner Flame Pattern Pilot Flame PatternCleaning Maintenance Burner Injector Holder and Pilot AIR Inlet HoleCabinet Air PassagewaysTroubleshooting Observed Problem Possible Cause RemedySee Cleaning and Mainte Residues from manufacturing Gas leak. See Warning Statement aboveSpecifications Service HintsTechnical Service Replacement PartsIllustrated Parts Breakdown Parts List Accessories Cleaning KIT GCK Corner Mantel with Full Hearth BaseCabinet Mantel and Full Hearth Base Information VideoLimited Warranty VENT-FREE Compact Classic Hearth Fireplace Warranty InformationKeep this Warranty