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3. You prefer vented operation. 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 33). 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 Height (ft.) Minimum Permanent Flue Opening (sq. ins.) 6' to 15' 15' to 30' 39 sq. inches 29 sq. inches Area of Various Standard Round Flues Diameter (ins.) Area (sq. ins.) 5" 6" 7" 8" 20 sq. inches 29 sq. inches 39 sq. inches 51 sq. inches Damper Damper Clamp Damper Clamp Damper Damper Manufactured FireplaceMasonry Fireplace Figure 10 - Attaching Damper Clamp Continued 13 INSTALLING Continued INSTALLING HEATER BASE ASSEMBLY 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 fireplace floor to allow access to heater control panel. This will insure adequate air flow and guard against sooting. Raise fireplace floor with non-combustible material. Make sure material is secure. CAUTION Do not pick up heater base assembly by the burner. This could damage heater. Only handle base assembly by grates. IMPORTANT:Make sure the heater burners are level. If heater is not level, heater will not work properly. For thermostat models, avoid damage to thermostat bulb. Avoid nicks or sharp bends in thermostat bulb wire. Keep thermostat bulb in mounting bracket. Installation Items Needed • hardware package (provided with heater) • approved flexible gas hose (not provided) (if allowed by local codes) • sealant resistant to propane (propane/LP) gas, not provided • electric drill with 3/16" drill bit 1. Apply pipe joint sealant lightly to male threads of the fitting to be threaded into gas regulator. Connect approved flexible gas hose to gas regulator of heater (see Figure 11). IMPORTANT:Hold gas regulator with wrench when connecting flexible gas hose. 2. Locate masonary screws in hardware package. 3. Position heater base assembly in fireplace. 4. Mark screw locations through holes in mounting brackets (see Figure 12, page 15). If installing in a brick-bottom fireplace, mark screw locations in mortar joint of bricks. 5. Remove heater base from fireplace. 6. Drill holes at marked locations using 3/16" drill bit. 7. Attach base assembly to fireplace floor using two masonry screws (in hardware package) (see Figure 12, page 15). 8. Connect to gas supply. See Connecting To Gas Supply, page 15. Fitting Heater Gas Regulator Flexible Gas Hose (if allowed by local codes) Figure 11 - Attaching Flexible Gas Hose to Heater Gas Regulator 14 INSTALLING Continued CONNECTING TO GAS SUPPLY NOTICE A qualified service person must connect heater to gas supply. Follow all local codes. CAUTION Never connect heater directly to the propane supply. This heater requires an external regulator (not supplied). Install the external regulator between the heater and propane supply. Installation Items Needed Before installing heater, make sure you have the items listed below. • external regulator (supplied by • test gauge connection * installer, see page 16) • sediment trap • piping (check local codes) • tee joint • sealant (resistant to propane/LP gas) • pipe wrench • manual shutoff valve * * An A.G.A. design-certified manual shutoff valve with 1/8" NPT tap is an acceptable alternative to test gauge connection. Purchase the optional A.G.A. design-certified manual shutoff valve from your dealer. See Accessories, page 33. Continued Masonry Screw Mounting Bracket Figure 12 - Attaching Base Assembly to Fireplace Floor 15 INSTALLING Continued The installer must supply an external regulator. The external regulator will reduce incoming gas pressure. You must reduce incoming gas pressure to between 11 and 14 inches of water. If you do not reduce incoming gas pressure, heater regulator damage could occur. Install external regulator with the vent pointing down as shown in Figure 13. Pointing the vent down protects it from freezing rain or sleet. Propane Supply Tank External Regulator Figure 13 - External Regulator With Vent Pointing Down Vent Pointing Down CAUTION Use only new, black iron or steel pipe. Internally-tinned copper tubing may be used in certain areas. Check your local codes. Use pipe of 1/2" diameter or greater to allow proper gas volume to heater. If pipe is too small, undue loss of pressure will occur. Installation must include a manual shutoff valve, union, and plugged 1/8" NPT tap. Locate NPT tap within reach for test gauge hook up. NPT tap must be upstream from heater (see Figure 14, page 17). Apply pipe joint sealant lightly to male threads. This will prevent ...

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