INSTALLATION
WARNING
To assure proper operation and avoid a possible unsafe condition, the booster heater must be installed in a horizontal position with the base parallel to the floor and the inlet connection at the lowest point.
WARNING
This product contains fiberglass, a product known to the state of California to cause cancer, birth defects or other reproductive harm.
PRESSURE AND TEMPERATURE RELIEF VALVES
For protection against excessive pressures and temperatures in the booster heater, install temperature and pressure protective equipment required by local codes. Hatco supplies temperature and pressure relief valves constructed with brass working parts and heat resistant silicone seat discs for all booster heater models.
WARNING
Valves supplied by Hatco are designed for high temperature commercial operation. Do not substitute Hatco valves with valves designed for domestic water heaters.
WARNING Temperature/pressure protective equipment should not be less than a combination temperature/pressure relief valve certified by a nationally recognized testing laboratory that maintains periodic inspection of the production of this equipment and meets the requirements for Relief Valves and Automatic Shutoff Devices for Hot Water Supply Systems, ANSI Z21.22- 1979. The temperature/pressure relief valve must be marked with a minimum set pressure not to exceed the marked hydrostatic test pressure of the booster heater as noted on the unit specifications.
WARNING
FOR INSTALLING PRESSURE AND
TEMPERATURE RELIEF VALVES IN ACCORDANCE WITH AMERICAN NATIONAL STD.
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