Desa VYM27NRPR Owner's Operation And Installation Manual

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Desa VYM27NRPR Owner's Operation And Installation Manual Manual pdf 10 page image

110398-01AFor more information, visit www.desatech.comFor more information, visit www.desatech.com10Area of Various StandardRound FluesDiameter (ins.) Area (sq. ins.)5" 20 sq. inches6" 29 sq. inches7" 39 sq. inches8" 51 sq. inchesINSTALLING DAMPER CLAMP ACCESSORYFOR VENTED OPERATIONNote: When used as a vented heater, appliance must be installedonly in a solid-fuel burning fireplace with a working flue andconstructed of noncombustible material.If your heater is a manually controlled model, you may use thisheater as a vented product. There are three reasons for operatingyour heater in the vented mode:1. The fireplace does not meet the clearance to combustibles re-quirements for vent-free operation2. State or local codes do not permit vent-free operation3. You prefer vented operationIf reasons number 1 or 2 above apply to you, you must permanentlyopen chimney flue damper. You must install the damper clampaccessory (to order, see Accessories, page 24). This will insure ventedoperation (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 mustprovide. Attach damper clamp so the minimum permanent flueopening will be maintained at all times.Chimney Minimum PermanentHeight (ft.) Flue Opening (sq. ins.)6' to 15' 39 sq. inches15' to 30' 29 sq. inchesFigure 10 - Attaching Damper ClampMasonry Fireplace Manufactured FireplaceDamperDamperDamperClampINSTALLING HEATER BASE ASSEMBLYWARNING: If installing in a sunken fireplace, specialcare is needed. You must raise the fireplace floor toallow access to heater control panel. This will insureadequate air flow and guard against sooting and con-trols being damaged. Raise fireplace floor with non-combustible material. Make sure material is secure.CAUTION: Do not pick up heater base assembly bythe burner. This could damage heater. Only handlebase assembly by grates.WARNING: You must secure this heater to fire-place floor. If not, heater will move when you adjustcontrols. Moving heater may cause a gas leak.IMPORTANT: Make sure the heater burner is level. If heater is notlevel, 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 propane/LP gas, not provided)• electric drill with 3/16" drill bit (metal or masonry as applicable)• flathead screwdriver1. Apply pipe joint sealant lightly to male NPT threads of thefitting to be threaded into gas control. Connect approved flex-ible 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 hardware package.3. Place heater base in fireplace.WARNING: Do not remove the data plates at-tached to the heater base assembly. The data platescontain important warranty and safety information.INSTALLATIONContinuedFittingFlexible GasHose (if allowedby local codes)Figure 11 - Attaching Flexible Gas Hose to HeaterINSTALLATIONInstalling Damper Clamp Accessory For Vented OperationInstalling Heater Base AssemblyDamperClamp