Installation / Operation Instruction Manual

Maintenance continued-

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.