Assessments - 2, GPA: 3.5
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Slide heater down until screws are in small portion of slots. Figure 9 - Location Of Keyhole Slots On Back Panel Of Heater Keyhole Slots Removing Front Panel Of Heater 1. Remove two screws near bottom corners of front panel. 2. Lift straight up on grill guard until it stops. Grill guard will slide up about 1/4". 3. Pull bottom of front panel forward, then down. Figure 10 - Removing Front Panel Of Heater Installing Bottom Mounting Screw 1. Locate bottom mounting hole. This hole is near bottom on back panel of heater (see Figure 11). 2. Mark screw location on wall. 3. Remove heater from wall. 4. If installing bottom mounting screw into hollow or solid wall, install wall anchor. Follow steps 1 through 5 under Attaching To Wall Anchor Method, page 11. If installing bottom mounting screw into wall stud, drill hole at marked location using 9/64" drill bit. 5. Replace heater on wall. 6. Insert bottom anchor screw through back panel into bottom anchor or drilled hole (see Figure 11). 7. Tighten screw until heater is firmly secured to wall. Do not over tighten. Note:Do not replace front panel at this time. Replace front panel after making gas connections and checking for leaks (see pages 13-15). Figure 11 - Installing Bottom Mounting Screw 12 CONNECTING TO GAS SUPPLY NOTICE A qualified service person must connect heater to gas supply. Follow all local codes. WARNING Never connect heater to private (non-utility) gas wells. This gas is commonly known as wellhead gas. IMPORTANT: Check gas line pressure before connecting heater to gas line. Gas line pressure must be no greater than 14 inches of water. If gas line pressure is higher, heater regulator damage could occur. 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 3/8" 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, ground joint 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 12, page 14). 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 valves. CAUTION Use pipe joint sealant that is resistant to liquid petroleum (LP) gas. Install sediment trap (trap) in supply line as shown in Figure 12, page 14. Locate sediment trap where it is within reach for cleaning. Locate sediment trap where trapped matter is not likely to freeze. A sediment trap traps moisture and contami nants. This keeps them from going into heater controls. If sediment trap is not installed or is installed wrong, heater may not run properly. Continued 13 CONNECTING TO GAS SUPPLY Continued CHECKING GAS CONNECTIONS IMPORTANT: Hold pressure regulator with wrench when connecting it to gas piping and/or fittings. Regulator Test Gauge From Connection * Sediment Trap * 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 Accessory, page 28. Tee Joint Reducer Bushing to 1/8" NPT 1/8" NPT Plug Tap Pressure Tee Joint PipeNipple Cap Heater Cabinet 3/8" NPT Pipe Nipple Ground Joint Union Manual Shutoff Valve * External Gas Meter (4" W.C. to 10.5" W.C. Pressure) Figure 12 - Gas Connection 3" Minimum 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 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 Pressures In Excess Of 1/2 PSIG 1. Disconnect heater and its individual manual shutoff valve from gas supply piping system. Pressures in excess of 1/2 psig will damage heater regulator. 2. Cap off open end of gas pipe where manual shutoff valve was connected. 3. Pressurize supply piping system by either using compressed air or opening main gas valve located on or near gas meter. 14 CONNECTING TO GAS SUPPLY Continued 4. Check all joints of 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. Test Pressures Equal To or Less Than 1/2 PSIG 1. Close manual shutoff valve (see Figure 13). 2. Pressurize supply piping system by either using compressed air or opening main gas valve located on or near gas meter. 3. Check all joints from gas meter to manual 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. PRESSURE TESTING HEATER GAS CONNECTIONS 1. Open manual shutoff valve (see Figure 13). 2. Open main gas valve located on or near gas meter. 3. Make sure control knob of heater is in the...
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