Gemini GEM-P400 Manul De Operacion página 71

Water Connections continued-
WARNING
For protection against excessive temperatures and pressure, install
temperature and pressure protective equipment required by local
codes, but not less than a combination temperature and pressure relief
valve certified by a nationally recognized testing laboratory that
maintains periodic inspection of production of listed equipment or
materials, as meeting the Requirements for Relief Valves and
Automatic Gas Shutoff Devices for Hot Water Supply Systems, ANSI
Z21.22, and the Standard CAN1-4.4 Temperature, Pressure,
Temperature and Pressure Relief Valves and Vacuum Relief Valves.
The combination temperature and pressure relief valve shall be marked
with a maximum set pressure, not to exceed the maximum working
pressure of the water heater. The combination temperature and
pressure relief valve shall also have an hourly rated temperature steam
BTU discharge capacity not less than the hourly input rating of the
water heater.
Install the combination temperature and pressure relief valve into the
opening provided and marked for this purpose on the water heater
Note: Some models may already be equipped or supplied with a
combination temperature and pressure relief valve. Verify that the
combination temperature and pressure relief valve complies with local
codes. If the combination temperature and pressure relief valve does
not comply with local codes, replace it with one that does. Follow the
installation instructions above on this page.
Install a discharge line so that water discharged from the combination
temperature and pressure relief valve will exit within six (6) inches (15.3
cm) above, or any distance below the structural floor and cannot
contact any live electrical part. The discharge line is to be installed to
allow for complete drainage of both the temperature and pressure relief
valve and the discharge line. The discharge opening must not be
subjected to blockage or freezing. DO NOT thread, plug or cap the
discharge line. It is recommended that a minimum of four (4) inches
(10.2 cm) be provided on the side of the water heater for servicing and
maintenance of the combination temperature and pressure relief valve.
Do not place a valve between the combination temperature and
pressure relief valve and the tank
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