OPERATING INSTRUCTIONS
WARNING
If the water heater has been damaged or exposed to flood- ing, fire, or sooting do not operate the heater until all cor- rective steps have been taken by a qualified serviceman.
FILLING
Before proceeding with operation of the water heater make sure that the system is filled with water.
-Turn the water flow selector handle clockwise ( 
) against stop.
-Open all hot water faucets connected to the W125K…to allow trapped air to escape from heater and piping.
-Close all faucets, once water flows freely and all air has escaped from system.
-The water heater is now ready to be lit.
SERVICE HINT
The screen (strainer) in the water valve, located in inlet of the water valve, may require occasional cleaning due the foreign material in the water supply. This will restrict the flow of water and may affect heater operation and prolong filling time. To inspect the screen, close the cold water sup- ply valve ahead of the heater, disconnected cold water line from inlet of water valve and remove screen from inlet. Clean if required, replace screen in inlet to water valve, recon- nected and open cold water supply valve.
LIGHTING
Light the water heater in accordance with the instructions on the Lighting and Operating Plate on the water heater. For your convenience, the instructions are repeated below.
LIGHTING INSTRUCTIONS
1.STOP! Read the safety information, (first section) of the Lighting Instruction Plate on the cover.
2.The main manual gas valve must be closed (turn valve
handle clockwise 
, see fig. below ) and the gas
valve button 
slide to the far left under the OFF mark.
3.Wait five (5) minutes to clear out any gas. If you smell gas, stop! Follow ‘’B’’ in the safety information above on this label. If you don’t smell gas, go to next step.
4.The pilot burner is located behind the peephole located in the front center of the jacket directly below this instruction plate.
5.Slide the gas valve button to right to pilot position ( 
) and open main manual gas valve (by turning valve handle
counterclockwise 
).
6.Fully depress gas valve button ( 
) and light pilot by
pushing pilot igniter button ( 
)
7.Observe pilot flame through peephole. The gas valve button should be held down at least 10 seconds with pilot burning. When the gas valve button is released the pilot should continue to born.
-If the gas valve button does not pop up when released stop and immediately call your service technician or gas supplier.
-If the pilot will not stay lit after several tries, slide the gas
valve button to the left. Under the OFF ( 
) mark, turn the manual gas valve to the off position and call your service technician or gas supplier.
8.Slide gas valve button to the right to the ON position
( 
) the heater will now fire when water is drawn at a rate greater than the threshold flow rate (see manual).
Note: If main burner should fait to ignite make sure pilot is burning. If not repeat lighting procedure steps 1 through 8.
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