Freezing of the water heater and its plumbing components will result in severe damage not
covered by warranty. For this reason it is advisable to follow the recommendation(s) below if
the unit is to be stored in a freezing environment or for long periods of time. At the start of the
winter season or before traveling to a location where freezing conditions are likely, the unit must
be winterized. The very small amount of water present in the heat exchanger DOES NOT require
the installation of a bypass kit. Winterization can be accomplished using one of the two common
methods of winterization used for RV water systems:
• Compressed Air method: Drain all water from the system opening one tap at a
time and using compressed air to purge all remaining water.
• Anti-freeze method: Follow the recommendations of the Recreational Vehicle
manufacturer and fill the system with a non toxic anti-freeze. Make sure that the
anti-freeze flows from each tap to complete the process.
This water heater is equipped with a temperature and pressure relief valve that complies with
the standard for Relief Valves and Automatic Gas Shutoff Devices for Hot Water Systems, ANSI
Z21.22.
• Valve is not serviceable; if defective it must be replaced.
• Tampering with valve will result in scalding injury. Do not place a plug or reducing
coupling on outlet part of valve. If you use a discharge line allow complete
drainage for both valve and line.
• Tampering with valve will void the warranty.
THIS VALVE IS A SAFETY COMPONENT AND MUST NOT BE REMOVED FOR ANY REASON
OTHER THAN REPLACEMENT.
WHEN REPLACING THE PRESSURE – TEMPERATURE RELIEF VALVE
• DO NOT install anything less than a combination pressure–temperature relief
valve certified by a nationally recognized testing laboratory that conducts
periodic inspections of such products and certifies them as meeting the
requirements for Relief Valves and Automatic Gas Shutoff Devices for Hot Water
Supply Systems, ANSI Z21.22. Valve must have a maximum set pressure not to
exceed 150 psi.
• Install valve into opening provided and marked for this purpose on water heater.
• Installation must conform with local codes or in the absence of local codes,
American National Standard for Recreational Vehicles, ANSI A119.2/NFPA 501C.
WINTERIZATION
PRESSURE - TEMPERATURE RELIEF VALVE
WARNING – SCALDING INJURY-EXPLOSION
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