Temperature-Pressure Relief Valve - Reliance Water Heaters FVIR C3 Instruction Manual

10. Flux the ends of the length of pipe cut for the T & P line and the
inside of the 3/4" male threaded to sweat connector. Then solder
this assembly together. Do not screw the connector into the
Temperature-Pressure Relief Valve before the assembly is
soldered together, see Figure 24.
11. Using your pipe wrench, screw the assembly into the Temperature-
Pressure Relief valve, see Figure 24.
FIGURE 24.
12. Connect the flexible gas connector to the incoming gas line using
the end with the 1/2" female fitting, a 1/2" threaded nipple is supplied
if needed. The 1/2" male fitting on the other end is to be connected
to the gas thermostat, make sure that the type gas you have is the
same as the gas type indicated on the rating plate. Make sure that
all connections are tight. All threaded fittings must have teflon
tape or pipe dope (which is resistant to the action of liquefied
petroleum [L.P.] gas).
13. Place the draft hood in the receiving holes where it connects to
the water heater. The legs should snap in to give a tight fit.
Place the vent pipe over the draft hood. With the vent pipe in
position, drill a small hole through both the vent pipe and draft
hood. Secure them together with a sheet metal screw.
14. With the thermostat knob in the "OFF" position, turn the gas on.
Check for leaks with a soapy solution. If leaks are found, turn the
gas off immediately and correct. Do not test gas leaks with a
match or flame. Read lighting instructions on page 18. Do not light
the water heater until it is completely filled with water, see
Figure 25.
FIGURE 25.
15. After checking that all connections are tight and the drain valve
near the bottom of the water heater is closed, read the
"Temperature-Pressure Relief Valve" section before going to "Filling
the Water Heater".

TEMPERATURE-PRESSURE RELIEF VALVE

This heater is provided with a properly certified combination
temperature - pressure relief valve by the manufacturer.
The valve is certified by a nationally recognized testing laboratory that
maintains periodic inspection of production of listed equipment of
materials as meeting the requirements for Relief Valves and Automatic
Gas Shutoff Devices for Hot Water Supply Systems, ANSI
Z21.22 •CSA 4.4 and the code requirements of ASME.
If replaced, the valve must meet the requirements of local codes, but
not less than a combination temperature and pressure relief valve
certified as indicated in the above paragraph.
The valve must be marked with a maximum set pressure not to exceed
the marked hydrostatic working pressure of the water heater
(150 psi = 1,035 kPa) and a discharge capacity not less than the water
heater input rate as shown on the model rating plate.
For safe operation of the water heater, the relief valve must not be
removed from its designated opening nor plugged.
The temperature-pressure relief valve must be installed directly into
the fitting of the water heater designed for the relief valve. Position the
valve downward and provide tubing so that any discharge will exit
only within 6 inches (153 mm) above, or at any distance below the
structural floor. Be certain that no contact is made with any live electrical
part. The discharge opening must not be blocked or reduced in size
under any circumstances. Excessive length, over 30 feet (9.14 m), or
use of more than four elbows can cause restriction and reduce the
discharge capacity of the valve, see Figure 26.
No valve or other obstruction is to be placed between the relief valve
and the tank. Do not connect tubing directly to discharge drain unless
a 6 inch air gap is provided. To prevent bodily injury, hazard to life, or
property damage, the relief valve must be allowed to discharge water
in quantities should circumstances demand. If the discharge pipe is not
connected to a drain or other suitable means, the water flow may
cause property damage.
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