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Bubbles forming show a leak. 4. Correct all leaks at once. 5. Depressurize and relieve pressure from supply piping system. Installation instructions and Owner’s Manual 70574 REV. C 8/05 8 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 main gas valve on or near gas meter. 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 leaks. 8. Turn off heater (see To Turn OFF Gas to Appliance, page 12 for thermostat models and page 11 for non-thermostat models). 9. Replace lower front panel. Open Equipment Closed Shutoff Valve Figure 13 Control Valve Gas Meter Equipment Shutoff Valve Figure 14 ELECTRICAL WIRING DIAGRAM: Figure 15 If any original wiring as supplied with the heater must be replaced, it must be replaced with type AWG 105oC wire or its equivalent except as indicated. WARNING: Electrical Grounding Instructions: This heater is equipped with a three-prong (grounding) plug for your protection against shock hazard and should be plugged into a properly grounded three- prong receptacle. OPERATING YOUR HEATER NON-THERMOSTAT MODELS MHIR10NG / MHBF10NG / TSIR10NG / TSBF10NG FOR YOUR SAFETY READ BEFORE LIGHTING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. A. This appliance has a pilot that must be lighted by hand. When lighting the pilot, follow these instructions exactly. B. BEFORE LIGHTING smell all around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor. WHAT TO DO IF YOU SMELL GAS • Do not try to light any appliance. • Do not touch any electrical switch; do not use any phone in your building. • Immediately call you gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions. • If you can not reach your gas supplier, call the fire department. 9 Installation instructions and Owner’s Manual LOW LOW . Use only your hand to push in or turn the gas FOR TSBF10NG: After flame is established (see control knob. Never use tools. It knob will not Burner Flame Pattern, Page 12) on “HI”, adjust push in or turn by hand, don’t try to repair it; call heat output by turning control knob to desired a qualified service technician or gas supplier. position (“LO” or “HI”). Do not operate heater Force or attempted repair may result in a fire or between locked positions. explosion. D. Do not use this appliance if any part has been Control Knob underwater. Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system which has been underwater. HIGH LIGHTING INSTRUCTIONS 1. STOP! Read the all safety information included OFF with and on the side of heater. 2. Check that gas supply to heater is on. 3. Push in gas control knob and slightly turn Figure 16 clockwise to the OFF position (see figure 16). Note: Knob cannot be turned from PILOT to OFF unless knob is pushed in slightly. Do not force. 4. Wait five (5) minutes. Then smell for gas, including near the floor. If you smell gas, STOP! Follow “B” in the safety information above. If you do not smell gas, go to the next step. 5. Push in gas control know slightly and turn counterclockwise to PILOT/IGN and depress for five (5) seconds. Note: The first time that the heater is operated after Figure 17 connecting the gas supply, the control knob should be depressed for about 30 seconds. This will allow air to bleed from the gas system. 6. Push in control knob and rotate control knob WARNING: When running heater, set control knob CAUTION: Do not try to adjust heating level by using equipment shutoff valve. back to OFF position then rotate counterclockat “LO” or “HI” locked positions. Poor combustion wise to PILOT/IGN position. This will light pilot. and higher levels of carbon monoxide may result if If needed gently keep rotating control knob back heater is operated with control knob positioned and forth while depressed until pilot lights. between locked positions. 7. Keep control knob depressed in for ten (10) seconds after lighting pilot. If pilot goes out, repeat steps 4, 5, 6 and 7. Control Knob • If pilot does not stay lit, refer to Troubleshooting, LOW pages 14 & 15. Also, contact a qualified service person or gas supplier for repairs. • If control knob does not pop up when released, HIGH contact a qualified service person or gas supplier for repairs. 8. FOR IR10NG: When the pilot i...

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