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Use of floor mounting feet will require you to use a 3/8 NPT street elbow to make gas connection. WARNING: This appliance requires a 3/8” NPT (National Pipe Thread) inlet connection to the pressure regulator. Use of floor mounting feet will require you to use a 3/8 NPT street elbow to make gas connection. 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/LP supply. Install sediment trap in supply line as shown in figure 12. Locate sediment trap where it is within reach for cleaning. A sediment trap traps moisture and contaminants. This keeps them from going into heater. If sediment trap is not installed or is installed improperly, heater may not run correctly. IMPORTANT: Hold pressure regulator with wrench when connecting it to gas piping and/or fittings. CHECKING GAS CONNECTIONS 8 The installer must supply an external regulator. The external regulator will reduce the 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 12. Pointing the vent down protects it from freezing rain or sleet. 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 larger enough diameter to allow proper gas volume to heater. If pipe is too small, undue loss of pressure will occur. Installation must include an equipment shutoff valve, union and plugged 1/8” NPT tap. Locate NPT tap within reach of test gauge hookup. NPT tap must be upstream from heater (see figure 12). Figure 12 *A CSA/AGA certified equipment shutoff valve with 1/8” NPT tap is an acceptable alternative to test gauge connection. Purchase the CSA/AGA certified equipment shutoff valve from your dealer. See Accessories, page 17. IMPORTANT: Install an equipment shutoff valve in an accessible location. The equipment shutoff valve is for turning on or shutting off the gas to the appliance. Apply pipe joint sealant lightly to male threads. This will prevent excess sealant from going into pipe. Excess sealant in pipe could result in clogged heater fuel train. CAUTION: Use pipe joint sealant that is resistant to LP-Gas. WARNING: Test all gas piping and connections for leaks after installing or servicing. Correct all leaks at once. WARNING: Never use an open flame to check for a gas leak. Apply a mixture of liquid soap and water to all joints. Bubbles forming show a leak. Correct all leaks at once. PRESSURE TESTING GAS SUPPLY PIPING SYSTEM Test pressure in Excess of . psig (3.5kPa) 1. Disconnect appliance with its appliance main gas valve (control valve) and equipment shutoff valve from gas supply piping system. Pressures in excess of . psig will damage heater regulator. 2. Cap off open end of gas pipe where equipment shutoff valve was connected. 3. Pressurize supply piping system by either using compressed air or opening main gas valve on or near gas meter. 4. Check all connections and joints in gas supply piping system. Apply mixture of liquid soap and water to gas joints. Bubbles forming show a leak. 5. Correct all leaks at once. 6. Depressurize and relieve pressure in supply piping system. 7. Reconnect heater and equipment shutoff valve to gas supply. 8. Reconnected fittings must be checked for leaks in next section. Test Pressure Equal To or Less Than . psig (3.5 kPa) 1. Close equipment shutoff valve (see figure 13). 2. Pressurize supply piping system by either using compressed air or opening propne/LP supply valve. 3. Check all joints from the propane/LP supply valve to equipment shutoff valve (see figure 14). Apply mixture of liquid soap and water to gas joints. Bubbles forming show a leak. 4. Correct all leaks at once. 5. Depressurize and relieve pressure from supply piping system. Pressure Regulator Heater Cabinet Ground Joint Union Equipment Shutoff Valve From Gas Meter (4” W.C. to 10.5” W.C. Pressure) Tee Joint 1/8” NPT Plug Tap Cap Pipe Nipple Tee Joint 3/8” NPT Pipe Nipple Sediment Trap Test Gauge Connection Reducer Bushing to 1/8” NPT 3” Minimum Installation instructions and Owner’s Manual 70575 Rev. C 8/05 Pressure Testing Heater Gas Connections: Pressure Testing Heater Gas Connections: . Make sure that the heater supply piping system is connected and has been leak tested as described above. 2. Make sure control knob of heater is in OFF position. 3. Open equipment shutoff valve (see figure 13). 4. Open propane/LP supply valve. 5. Check all joints from equipment shutoff valve to control valve (see figure 14). Apply mixture of liquid soap and water to gas joints. Bubbles forming show a leak. 6. Correct all leaks at once. 7. Light heater (see Operating Your Heater, pages 11 and 12 for thermostat models or pages 9 and 10 for non-thermostat models). Check the rest of the internal joints for...

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