Desa FLAME-MAX VML27NR Owner's Operation And Installation Manual

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Desa FLAME-MAX VML27NR Owner's Operation And Installation Manual Manual pdf 11 page image

111115-01A1111For more information, visit www.desatech.comFor more information, visit www.desatech.comCONNECTING TO GAS SUPPLYWARNING: A qualified service person must con-nect heater to gas supply. Follow all local codes.WARNING: Never connect propane/LP heater di-rectly to the propane/LP supply. This heater requires anexternal regulator (not supplied). Install the externalregulator between the heater and propane/LP supply.WARNING: Never connect natural gas heater toprivate (non-utility) gas wells. This gas is commonlyknown as wellhead gas.Figure 15 - Connecting WiresControlValveWhiteWire FromReceiverRed Wire FromReceiverFigure 14 - Installing Remote ReceiverRemoteReceiverPush ButtonClipsBracketInstalling Batteries for Remote Receiver and HandHeld Remote ControlTwo 9-volt alkaline batteries (not included) are required to operatethis heater with the wireless hand-held remote control set. Onebattery must be installed in the receiver and one in the hand-heldremote control unit.Note: Only use alkaline batteries.Installing 9-Volt Battery in Receiver1. Locate back of receiver behind receiver bracket mounted onbase assembly.2. Locate the battery clip mounted on the back of the receiver(see Figure 14).3. Slide a 9-volt battery through the clip.4. Attach the terminal wires to the battery.BatteryClip9-VoltBatteryTerminal WiresINSTALLATIONContinuedInstalling 9-Volt Battery (Not Included) in Hand-HeldRemote Control Unit1. Remove battery cover on back of remote control unit.2. Attach terminal wires to battery. Place battery into battery housing.3. Replace battery cover onto remote control unit.Figure 16 - Installing Battery inHand-Held Remote Control UnitBatteryCover9-VoltBatteryTerminalWiresRemoteControlUnitFigure 17 - Installing Batteryin Hand-Held Remote Con-trol Unit (CGHRCTA Series)Battery Cover9-VoltBatteryTerminalWiresInstallation Items NeededBefore installing heater, make sure you have the items listed below.• external regulator (for propane/LP units only, supplied by in-staller)• piping (check local codes)• sealant (resistant to propane/LP gas)• equipment shutoff valve *• test gauge connection *• sediment trap• tee joint• pipe wrench* A CSA design-certified equipment shutoff valve with 1/8" NPTtap is an acceptable alternative to test gauge connection. Purchasethe optional CSA design-certified equipment shutoff valve fromyour dealer. See Accessories, page 27.For propane/LP units, the installer must supply an external regula-tor. The external regulator will reduce incoming gas pressure. Youmust reduce incoming gas pressure to between 11 and 14 inches ofwater. If you do not reduce incoming gas pressure, heater regulatordamage could occur. Install external regulator with the vent point-ing down as shown in Figure 18, page 12. Pointing the vent downprotects it from freezing rain or sleet.CAUTION: Use only new, black iron or steel pipe.Internally-tinned copper tubing may be used in certainareas. Check your local codes. Use pipe of 1/2" diam-eter or greater to allow proper gas volume to heater. Ifpipe is too small, undue loss of volume will occur.INSTALLATIONInstalling Optional Remote Control AccessoriesConnecting To Gas Supply