Installation / Operation Instruction Manual

Maintenance continued-

1. Boiler and Domestic Water Piping (Annual) – Check all piping for

signs of leakage at joints, unions, and shut-off valves. Repair as

needed.

2. Temperature-Pressure Relief Valve (Annual)- The temperature-

pressure relief valve should be checked to ensure that it is in

operating condition. To check the relief valve, lift the lever at the end

of the valve several times. The valve should seat properly and

operate freely. If water does not flow, remove and inspect for

obstructions or corrosion. Replace with a new valve of the

recommended capacity as necessary. Do not attempt to repair the

valve, as this could result in improper operation and a tank

explosion. In areas with poor water conditions, it may be necessary

to inspect the temperature-pressure relief valve more often than

once a year.

CAUTION

Before manually operating the valve, make sure that a drain line has

been attached to the valve to direct the discharge to an open drain.

Failure to take this precaution could mean contact with extremely hot

water discharging from the valve during this checking operation.

If the temperature–pressure relief valve on the heater discharges

periodically or continuously, it may be due to thermal expansion of water

in a closed water supply system, or it may be due to a faulty relief valve.

Thermal expansion is the normal response of water when it is heated. In

a closed system, thermal expansion will cause the system pressure to

build until the relief valve actuation pressure is equaled. Then the relief

valve will open, allowing some water to escape, slightly lowering the

pressure. Contact your water supplier or local plumbing inspector on how

to control this situation.

ABOVE ALL, DO NOT PLUG THE TEMPERATURE AND PRESSURE

RELIEF VALVE. THIS IS NOT A SOLUTION AND CAN CREATE A

HAZARDOUS SITUATION.

3. Anode Inspection and Replacement - This water heater is

equipped with multiple sacrificial anodes. Anodes protect the glass-

lined tank from corrosion by sacrificing themselves through

electrolysis. When the anode material is consumed, there is no

more protection and corrosion of the tank accelerates.

Inspection of the anode every year allows you to identify a spent

anode and replace. Replace the anode when its diameter is 3/8 of

an inch, or every other year, whichever is first. Aggressive, very hot

and softened water causes rapid consumption of the anode,

requiring frequent inspections. Anodes are available from your

distributor or from the manufacturer.