Desa VYM27NR Installing Damper Clamp Accessory for Vented Operation, Installation Items Needed

Page 10

VANGUARD FLAME MAX®

UNVENTED NATURAL GAS LOG HEATER

INSTALLATION

Continued

INSTALLING DAMPER CLAMP ACCESSORY FOR VENTED OPERATION

Note: When used as a vented heater, appli- ance must be installed only in a solid-fuel burning fireplace with a working flue and constructed of noncombustible material.

If your heater is a manually controlled model, you may use this heater as a vented product. There are three reasons for operating your heater in the vented mode:

1.The fireplace does not meet the clear- ance to combustibles requirements for vent-free operation

2.State or local codes do not permit vent- free operation

3.You prefer vented operation

Damper

ClampDamper

Damper

Clamp

Damper

Damper

Masonry Fireplace

Manufactured Fireplace

If reasons number 1 or 2 above apply to you, you must permanently open chimney flue damper. You must install the damper clamp accessory (to order, see Accessories, page 24). This will insure vented operation (see Figure 10). The damper clamp will keep damper open. Installation instructions are included with clamp accessory.

See chart below for minimum permanent flue opening you must provide. Attach damper clamp so the minimum permanent flue opening will be maintained at all times.

Chimney

Minimum Permanent

Height (ft.)

Flue Opening (sq. ins.)

 

 

6' to 15'

39 sq. inches

15' to 30'

29 sq. inches

 

 

Area of Various Standard

Round Flues

Diameter (ins.)

Area (sq. ins.)

 

 

5"

20 sq. inches

6"

29 sq. inches

7"

39 sq. inches

8"

51 sq. inches

 

 

Figure 10 - Attaching Damper Clamp

INSTALLING HEATER BASE ASSEMBLY

CAUTION: Do not remove the metal data plates attached to the heater base assembly. The data plates contain important warranty information.

WARNING: You must secure this heater to fireplace floor. If not, heater will move when you adjust controls. Moving heater may cause a gas leak.

WARNING: If installing in a sunken fireplace, special care is needed. You must raise the fire- place floor to allow access to heater control panel. This will in- sure adequate air flow and guard against sooting. Raise fireplace floor with noncombustible mate- rial. Make sure material is secure.

CAUTION:Donotpickupheater base assembly by the burner. This could damage heater. Only handle base assembly by grates.

IIMPORTANT: Make sure the heater burner is level. If heater is not level, heater will not work properly.

Installation Items Needed

•hardware package (provided with heater)

•approved flexible gas hose (not provided) (if allowed by local codes)

•sealant (resistant to LP gas, not provided)

•electric drill with 3/16" drill bit (metal or masonry as applicable)

•flathead screwdriver

1.Apply pipe joint sealant lightly to male threads of the fitting to be threaded into gas control. Connect approved flexible gas hose to gas control fitting in heater (see Figure 11). IMPORTANT: Hold gas fitting with wrench when connect- ing flexible gas hose.

2.Locate two masonry screws in hard- ware package.

3.Place heater base in fireplace.

4.Place logs in their proper position on heater base.

5.Center heater base and logs front-to- back and side-to-side in fireplace.

6.Carefully remove logs without moving heater base.

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104674

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Contents What to do if YOU Smell GAS OWNER’S Operation and Installation ManualRemote Control Ready Model Patent PendingSafety Information Vanguard Flame MAX Unvented Natural GAS LOG HeaterProduct Identification Product FeaturesRemote Control Accessories Local CodesUnusually Tight Construction AIR for Combustion and VentilationProviding Adequate Ventilation Confined and Unconfined SpaceDetermining FRESH-AIR Flow for Heater Location AIR for Combustion VentilationDetermining if You Have a Confined or Unconfined Space Building Ventilation AIRVentilation Air From Inside Ventilation Air From OutdoorsCheck GAS Type InstallationInstallation Clearances Minimum Fireplace Clearance to Combustible MaterialsIf Using Mantel If Not Using MantelMinimum Noncombustible Material Clearances Floor Clearances Determining Minimum Mantel Clearance When Using a HoodMantel Clearances Determining Minimum Mantel ClearanceInstallation Items Needed Installing Damper Clamp Accessory for Vented OperationInstalling Heater Base Assembly Chimney Minimum Permanent Height ft Flue Opening sq. insConnecting to GAS Supply Attaching Flexible Gas Hose to HeaterChecking GAS Connections Pressure Testing Gas Supply Piping SystemPressure Testing Heater Gas Connections Test Pressures In Excess Of 1/2 PsigInstalling Logs Installing Bottom Log #1Operating Heater For Your Safety Read Before LightingInstructions To Turn OFF GAS To Appliance Manual Lighting ProcedureOptional Remote Operation Burner Primary AIR Holes Inspecting BurnersPilot Flame Pattern Main BurnerTroubleshooting Observed Problem Possible CauseObserved Problem Possible Cause Remedy Maintenance,Top Gas leak. See Warning statement at topService Hints Wiring Diagram Replacement PartsSpecifications Technical ServiceCleaning Burner Injector Holder and Pilot AIR Inlet Hole Cleaning and MaintenanceLogs Illustrated Parts Breakdown VYM27NRParts List Description QTYAccessories 104674 Limited Warranty VENT-FREE Natural GAS LOG Heaters International

VYM27NR specifications

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