State GPH-90N - Manual (Page 43)

Service Instructions
0610 43 319172-000 Rev. 00
GAS WATER HEATERS
DRAIN VALVE REPLACEMENT
This instruction has been prepared to acquaint you with the service of your gas-fi red water heater. It is your responsibility to
ensure that your water heater is properly installed and maintained.
Failure to follow the instructions in this service instruction sheet may result in serious bodily injury and/or property
damage. Thoroughly read and understand all instructions before you attempt to install, operate or service this heater.
Maintenance and service requires trade knowledge in the areas of plumbing, electricity and gas. If you lack these skills or
have diffi culty understanding these instructions you should not proceed. Enlist the help of a qualifi ed service technician to
service this water heater.
To Remove:
Disconnect the electrical power to the water heater.
Unlock the door by rotating the lock counter-clockwise
with a wide, slot screwdriver.
Release the top and bottom door pins by prying the pins
out, using a small screwdriver.
Open the door (the door remains fastened to the left
side panel).
Close the shutoff valves on both the hot-water and cold-
water lines.
Drain the tank following the instructions in the “Draining
The Tank” section in the Operating Manual.
Remove the Drain Valve.
To Install:
Use only Tefl on tape or an approved pipe sealant on
the threads.
Install the new Drain Valve.
Open the shutoff valves on both the hot-water and cold-
water lines.
Fill the tank following the instructions in the “Filling The
Water Heater” section in the Operating Manual.
Check for leaks and repair as required.
Close and lock the door.
Reconnect the electrical power to the water heater.
Restart the water heater following the “Lighting
Instructions” found in the Operating Manual.
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7.
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8.
Access To
Door Pins
Door
Lock