Desa DCFTNA Ventilation AIR, Ventilation Air From Inside Building, Ventilation Air From Outdoors

Page 8

AIR FOR COMBUSTION

AND VENTILATION

Continued

4.Compare the maximum Btu/Hr the space can support with the actual amount of Btu/Hr used.

_______ Btu/Hr (maximum the space can support)

_______ Btu/Hr (actual amount of Btu/Hr used)

Example: 35,840 Btu/Hr (maximum the space can support)

40,000 Btu/Hr (actual amount of Btu/Hr used)

The space in the above example is a confined space because the actual Btu/Hr used is more than the maxi- mum Btu/Hr the space can support. You must provide additional fresh air. Your options are as follows:

A.Rework worksheet, adding the space of an adjoin- ing room. If the extra space provides an unconfined 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.

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 unconfined space. You will need no additional fresh air ventilation.

WARNING: If the area in which the fireplace 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/NFPA54 Section 5.3 or 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 permanent 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 5). You can also remove door into adjoining room (see option 3, Figure 5). Fol- low 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"

Ventilation

 

Ventilation Grills

Grills

 

Into Adjoining

Or

Into Adjoining Room,

Room,

Option 2

Remove

Option 1

 

Door into

 

 

 

 

Adjoining

 

 

Room,

 

 

Option

 

 

3

 

12"

Figure 5 - Ventilation Air from Inside

Building

Ventilation Air From Outdoors

Provide extra fresh air by using ventilation grills or ducts. You must provide two permanent openings: 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- controlled 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 6 - Ventilation Air from Outdoors

8

www.desatech.com

111244-01E

Image 8
Contents Shown with Optional Cabinet Mantel/Hearth Base Accessory What to do if YOU Smell GASTable of Contents Safety Information Product Identification Provide adequate clearances around air openingsOptional Remote Control Accessories Product FeaturesLocal Codes UnpackingHex wrench Scissors Hood AssemblyTools Required Phillips screwdriver Determining FRESH-AIR Flow for Fireplace Location AIR for Combustion VentilationProviding Adequate Ventilation Ventilation Air From Outdoors Ventilation AIRVentilation Air From Inside Building Installation Check GAS TypeInstallation Items BUILT-IN Fireplace InstallationFireplace Clearances Minimum Clearance to Combustible MaterialsIf you have not installed hood, follow instruc- tions on DepthOptional Mantel Installation Mantel Clearances for Built-In InstallationInstalling Optional Blower Accessory GA3450TA Reinstall top louverAlign shim under adjusting plate as shown in Figure Remove packaging from three remaining pieces of trimInstalling Blower Accessory DoorLower louver For Built-In InstallationTest to make sure blower is working properly Connecting to GAS Supply Sediment TrapChecking GAS Connections Connecting Equipment Shutoff Valve to Heater ControlInstallation Items Needed Correct all leaks at once Els or page 25 for Remote-Ready ModelsOptional Wireless HAND-HELD Remote Control Accessories Installing ReceiverInstalling 9-Volt Battery in Hand-Held Remote Control Unit Optional Wall MountedOptional Wall Switch GWMS2 Remote-Ready Models Only Remove jumper wire from control valve see ,Installing LOG SET and Screen Models with One-Piece Screen OnlyOperating Fireplace Lighting InstructionsManual Lighting Procedure To Turn OFF GAS To ApplianceThermostat Control Operation Operating BlowerREMOTE-READY Models For Your Safety Read Before Lighting AUTO/OFF/ON Blower SwitchIf Using Optional Hand-Held Remote Optional HAND-HELD Remote OperationManual Mode Auto Thermostatic ModeAuto Shutoff Feature ON/OFF Series Model CghrcbOptional GWMS2 Wall Mounted Switch Key Pad Lock FeatureInspecting Burners Optional GWMT1 Wall Mounted ThermostatCleaning Maintenance Burner Flame PatternBurner Injector Holder and Pilot AIR Inlet Hole If burner flame pattern is incorrect, as shown in FigureCabinet Wiring DiagramLOG SET Troubleshooting Observed Problem Possible Cause RemedyIgnitor cable pinched or wet Ignitor cable dryBurner orifice is clogged Mote-Ready Models OnlyModels Only Or replace burner orificeWhen heated, vapors from Walls or furniture Cleaners, etc. may turn intoMote-Ready Models Only Power is low Slight smoke or odor duringGas odor even when control Fireplace produces unwantedErs, chemicals, new carpet Ment aboveRemote-Ready Models SpecificationsThermostat Models Replacement Parts Service HintsTechnical Service Parts Under WarrantyIllustrated Parts Breakdown Parts List Illustrated Models Firebox Models CDCFNR, Cdcfpr Illustrated Parts Breakdown Thermostat Models FDCFTN/TP, VDCFRN/RP CDCFNR/PR REMOTE-READY Models Accessories Equipment Shutoff Valve GA5010Brass Trim KIT GA6095 THERMOSTAT-CONTROLLED Blower KIT GA3450TAWALL-MOUNT Thermostat Switch GWMT1 WALL-MOUNT ON/OFF Switch GWMS2Cleaning KIT GCK/CCK Receiver and HAND-HELD Remote Control KIT Ghrcb and Cghrcb111244-01E 111244-01E Not a UPC