Please note the following:
•The system should be installed only with piping that is suitable for potable (drinkable) water such as copper, CPVC, or polybutylene. This water heater must not be installed using iron piping or PVC water piping.
•Use only pumps, valves, or fittings that are compatible with potable water.
•Use only full flow ball or gate valves. The use of valves that may cause excessive restriction to water flow is not recommended.
•Use only 95/5
•Piping that has been treated with chromates, boiler seal, or other chemicals must not be used.
•Chemicals that may contaminate the potable water supply must not be added to the piping system.
Closed System/Thermal Expansion
WARNING
Explosion Hazard
If the temperature and pressure relief valve is dripping or leaking, have a qualified person replace it.
Examples of a qualified person include: licensed plumbers, authorized gas company personnel, and authorized service personnel.
Do not plug valve. Do not remove valve.
Failure to follow these instructions can result in death, or explosion.
Periodic discharge of the temperature and pressure relief valve may be due to thermal expansion in a closed water supply system. The water utility supply meter may contain a check valve, backflow preventer or water pressure reducing valve. This will create a closed water system. During
the heating cycle of the water heater, the water expands causing pressure inside the water heater to increase. This may cause the temperature and pressure relief valve to discharge small quantities of hot water. To prevent this, it is recommended that a
IMPORTANT: Do not plug or remove the temperature and pressure relief valve.
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