mAINTENANCE
venting system
Examine the venting system every six months for obstructions and/or deterioration of the vent piping.
Remove all soot or other obstructions from chimney which will retard free draft.
remote storage tank temperature control
The water temperature in the remote storage tank (if used) is controlled by the storage tank temperature control. The sensing element is mounted in the hot water storage tank, see Water Piping Diagram section.
A change in water temperature in the storage tank lower than the tank temperature control setting will cause the sensor to activate the circulating pump. The pump then circulates the water through the heater where the thermostat senses the drop in water temperature and activates main burner operation of the appliance.
If the storage tank temperature control is out of calibration, replace with new control.
SHOULD OVERHEATING OCCUR OR THE GAS SUPPLY FAIL TO SHUT OFF, TURN OFF THE MANUAL GAS CONTROL VALVE TO THE APPLIANCE.
temperature-Pressure relief Valve test
Burn hazard.
Hot water discharge.
Keep clear of Temperature- Pressure Relief Valve discharge outlet.
It is recommended that the
When checking the
To check the relief valve, lift the lever at the end of the valve several times, see Figure 26. The valve should seat properly and operate freely.
If after manually operating the valve, it fails to completely reset and continues to release water, immediately close the cold water inlet to the water heater and drain the water heater, see Draining And Flushing on page 28. Replace the
Valve with a properly rated/sized new one, see Temperature- Pressure Relief Valve on pages
FIGURE 26.
If the
NOTE: Excessive water pressure is the most common cause of
DO NOT PLUG THE
Explosion Hazard
Properly sized temperature- pressure relief valve must be installed in opening provided.
Can result in overheating and excessive tank pressure.
Can cause serious injury or death.
hot water odor
On occasion, hot water may develop a strong odor. If this occurs drain the heater completely, flush thoroughly, and refill. If the problem persists, chlorination of the heater and replacement of magnesium anodes with aluminum anodes may correct the condition.
Occasionally water softener companies recommend removal of heater anodes for odor reasons.
Unauthorized removal of the anode(s) will void the warranty. For further information contact your dealer.
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