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Water Connections continued-
Your water supplier or local plumbing inspector should be contacted on how
to control this situation. After installation of the water lines, open the main
water supply valve and fill the water heater. While the water heater is filling,
open several hot water faucets to allow air to escape from the water system.
When a steady stream of water flows through the faucets, close them and
check all water connections for possible leaks. NEVER OPERATE THE
WATER HEATER WITHOUT FIRST BEING CERTAIN IT IS FILLED WITH
WATER.
This water heater must be permanently connected to the water mains and
not by a hose-set.
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.
WARNING
9
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