Reliant FVIR GAS WATER HEATER Installation Instructions And Use & Care Manual
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28tight in the gas control valve/thermostat. Finally, startthe thermocouple nut and turn it all the way in by hand.An additional quarter turn with a 3/8” open-end wrenchwill then be sufficient to seat the lockwasher. Whenyou are finished, connect the two wire leads that go tothe thermal switch.7. Reconnect the igniter wire.8. Turn gas supply on and refer to the Lighting Instruc-tions.9. With the burner lit, check the gas control valve/thermostat supply line, two piece wire connector,manifold tube, and pilot tube connections forleaks. Check for leaks by brushing on an approvednoncorrosive leak detection solution. Bubbles formingindicate a leak. Correct any leak found. IMPORTANT:All leaks must be fixed immediately.10. Replace the outer door.DOOR GASKETFLAME ARRESTOR BRACKETTIPFIGURE 30.MANIFOLD TUBETIP BRACKETSLOTCLOSE-UP INSIDE VIEW OFTHE COMBUSTION CHAMBER.FIGURE 31.Piezoelectric Igniter SystemThe piezoelectric igniter system consists of the igniterbutton, electrode, and wire. The pilot is ignited by anelectric spark generated when the igniter button ispressed. The spark gap of 0.125 inch is set when theelectrode is installed at the factory. (Figure 32 ). Useonly factory authorized piezoelectric igniter parts forreplacement.SNAP-ON CONNECTORIGNITERBUTTONWIRETOELECTRODETHERMOCOUPLEPILOTPILOTBRACKET ELECTRODETIP.125” ** NOTE: SPARK GAP DISTANCE MEASURED FROM ELECTRODE TIP TO PILOT.FIGURE 32.Testing the Igniter SystemTurn off the gas to the water heater at the manual gasshut-off valve. Watch the electrode tip while activating theigniter. A visible spark should jump from the electrode. Toavoid shock, do not touch the burner or any metal parton the pilot or pilot assembly. If no spark is visible, checkthe wire connections and make sure the electrode is notbroken. Replace the igniter if defective. Dirt and rust on thepilot or electrode tip can prevent the igniter spark. Wipeclean with a damp cloth and dry completely. Rust can beremoved from the electrode tip and metal surfaces bylightly sanding with an emery cloth or fine grit sandpaper.Removing and Replacing the Gas ControlValve/ThermostatIMPORTANT: This water heater has a resettable thermalswitch installed. Do not attempt to disable or modify thisfeature in any way. Use only factory authorizedreplacement parts.Removing the Gas Valve:1. Turn off the gas supply to the water heater at themanual gas shut-off valve. This valve is typically locatedbeside the water heater. Note the position of the shut-off valve in the open/on position then proceed to turn itoff (Figure 3).2. On the lower front of the water heater locate thegas control valve/thermostat (see Figure 23). Beforeperforming any maintenance, it is important to turn thetemperature dial on the gas control valve/thermostat toits lowest setting.3. On top of the gas control valve/thermostat turn the gascontrol knob to the “OFF” position. NOTE: On the WhiteRodgers gas control valve/thermostat the knob stopmust first be depressed before turning the gas controlknob. See Lighting Instructions on the water heater.4. Drain the water heater. Refer to the section of“Draining and Flushing” section and follow theprocedure.5. Disconnect the piezo igniter wire from the piezo igniterbutton. NOTE: There are two types of igniters. Ifyou have the square igniter, slide the igniter bracketbackwards away from the gas valve to remove it. Ifyou have the round igniter, first remove the igniterfrom the bracket by depressing front and rear holdingtabs and lift. Next remove igniter bracket from thegas valve. Disconnect the thermocouple, pilot tube,the two connectors attached to the thermal switch,and manifold tube at the gas control valve/thermostat(Figure 22). NOTE: L.P. gas systems use reverse (left-hand) threads on the manifold tube.6. Refer to “Gas Piping” section (Figure 3) and disconnectthe ground joint union in the gas piping. Disconnect theremaining pipe from the gas control valve/thermostat.7. To remove the gas control valve/thermostat, thread acorrectly sized pipe into the inlet and use it to turn the gascontrol valve/thermostat (counterclockwise.) Do not usepipe wrench or equivalent to grip body. Damage mayresult, causing leaks.Do not insert any sharp objects into the inlet or outletconnections. Damage to the gas control valve/thermostatmay result. |
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