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HOT WATER
OUTLET
COLD WATER
INTLET
DRAIN VALVE
DISCHARGE PIPE
(DO NOT CAP
OR PLUG)
DRAIN PAN
3/4” SWEAT
FITTING
UNION
SHUTOFF
VALVE
FLOOR DRAIN
3/4” SWEAT
FITTING
TEMPERATURE
AND PRESSURE
RELIEF VALVE
UNION
6” MAXIMUM
AIR GAP
FIGURE 5
Figure 5 shows the typical attachment of the water piping to the
water heater. The water heater is equipped with 3/4“ NPT water
connections.
NOTE: If using copper tubing, solder tubing to an adapter before
attaching the adapter to the cold water inlet connection. Do not
solder the cold water supply line directly to the cold water inlet.
It will harm the dip tube and damage the tank.
T & P VALVE AND PIPE INSULATION (IF SUPPLIED)
Remove insulation for T & P valve and pipe connections from
carton.
FIGURE 6
Fit pipe insulation over the incoming cold water line and the hot
water line. Make sure that the insulation is against the top cover
of the heater.
Fit T & P valve insulation over valve. Make sure that the insula-
tion does not interfere with the lever of the T & P valve.
Secure all insulation using tape.
TEMPERATURE-PRESSURE RELIEF VALVE
This heater is provided with a properly certifi ed combination
temperature - pressure relief valve by the manufacturer.
The valve is certifi ed by a nationally recognized testing labora-
tory that maintains periodic inspection of production of listed
equipment of materials as meeting the requirements for Relief
Valves 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 certifi ed as indicated in the above paragraph.
The valve must be marked with a maximum set pressure not to ex-
ceed 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 fi tting of the water heater designed for the relief valve.
Position the valve downward and provide tubing so that any
discharge will exit only within 152mm (6 in.) above, or at any