12
HOT WATER
OUTLET
COLD WATER
INTLET
DRAIN VALVE
DISCHARGE PIPE
(DO NOT CAP
OR PLUG)
METAL
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 4
Figure 4 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)
Locate the temperature and pressure relief valve on the wa-
ter heater (also known as a T&P relief valve). See Figure 5.
Locate the slit running the length of the T&P relief valve
insulation.
Spread the slit open and fi t the insulation over the T&P relief
valve. See Figure 5. Apply gentle pressure to the insulation
to ensure that it is fully seated on the T&P Relief Valve. Once
seated, secure the insulation with duct tape, electrical tape,
or equivalent. IMPORTANT: The insulation and tape must not
block the discharge opening or hinder access to the manual
relief lever (Figure 5). Ensure a discharge pipe is installed
into the T&P valve discharge opening per the instructions in
this manual.
1.
2.
3.
Locate the hot water (outlet) & cold water (inlet) pipes to the
water heater.
Locate the slit running the length of a section of pipe insula-
tion.
Spread the slit open and slip the insulation over the cold
water (inlet) pipe. Apply gentle pressure along the length of
the insulation to ensure that it is fully seated around the pipe.
Also, ensure that the base of the insulation is fl ush with the
water heater. Once seated, secure the insulation with duct
tape, electrical tape, or equivalent.
Repeat steps 5 and 6 for the hot water (outlet) pipe.
Add additional sections of pipe insulation as needed.
T&P Relief Valve
T&P Relief Valve
Drain Line
Manual Relief Lever
T&P Relief Valve Insulation
(Outlet opening on underside)
FIGURE 5
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.
4.
5.
6.
7.
8.
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