Polaris GAS WATER HEATER Installation, Operation And Service Manual page 26

REMOVAL AND REPLACEMENT OF THE GAS REGULATOR VALVE
REMOVING THE GAS REGULATOR VALVE
WARNING
REMOVAL AND REPLACEMENT OF THE GAS REGULATOR VALVE
INVOLVES THE DISCONNECTION OF GAS PIPING AND ELECTRICAL
LEADS. IT IS RECOMMENDED THAT THIS PROCEDURE BE PERFORMED
BY A QUALIFIED SERVICE TECHNICIAN.
1. Turn off electrical power to appliance. See Figure 22 and turn
temperature dial counterclockwise to the lowest setting. Remove the left
access panel.
2. Shut off the gas at the manual shutoff valve on the gas supply line. See
Figure 21.
3. Push down on the red selector arm on the gas regulator valve and move to
the "OFF" position, see Figure 23.
4. Disconnect the electrical leads from the gas regulator valve and move
away from the valve.
5. Disconnect and remove the balance line from the "vent" port on the gas
regulator valve. The other end of this line connects to the blower inlet.
6. Disconnect the ground joint union in the gas piping. See Figure 21.
7. Disconnect the pipe nipple on the inlet of the gas regulator valve.
8. Unscrew the gas regulator valve counterclockwise and remove.
9. If the Polaris is an L.P. model, check to make sure that the "divider" blade
is positioned at either the 10 or 2 o'clock position. There will be a black
line marked on the hexagonal part of the orifice holder denoting the
position of the divider.
CAUTION
WHEN REMOVING THE GAS REGULATOR VALVE DO NOT USE PIPE
WRENCH OR VISE TO GRIP BODY OR ANY TYPE OF BLUNT INSTRUMENT
INTO THE INLET OR OUTLET CONNECTIONS. USING THESE TYPE TOOLS
MAY RESULT IN DAMAGE TO THE GAS REGULATOR VALVE.
To replace the gas regulator valve repeat the previous procedure in
reverse order. Note: If the balance line is kinked or the fittings
damaged, this line must be replaced.
• Be sure to use Approved Teflon Tape or Pipe Joint Compound on the gas piping
connections and gas regulator valve.
• Turn gas supply on and check for leaks. Use a chloride-free soap and water
solution (bubbles forming indicate a leak) or other approved method. Do not use
an open flame. ALL LEAKS MUST BE FIXED IMMEDIATELY.
• Be sure tank is completely filled with water before lighting and activating the
water heater. Refer to Figure 17 and follow lighting procedure.
• Refer to "GAS REGULATOR ADJUSTMENT" section for gas valve regulation.
• If additional information is required, contact the Service Department at the
800 number shown on the front of this manual.
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