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1.Lookatthetopcoverofthewaterheater.Thehotwater
outletismarkedhot.Puttwoorthreeturnsofteflontape
aroundthethreadedendofthethreaded-to-sweatcoupling
andaroundbothendsofthe3/4"threadednipple.Using
flexibleconnectors,connectthehotwaterpipetothehot
wateroutletofthewaterheater.
2.Lookatthetopcoverofthewaterheater.Thecoldwaterinlet
ismarkedcold.Puttwoorthreeturnsofteflontapearound
thethreadedendofthethreaded-to-sweatcouplingand
aroundbothendsofthe3/4"threadednipple.Usingflexible
connectors,connectthecoldwaterpipetothecoldwaterinlet
ofthewaterheater.
NOTE:Yourwaterheateris insulatedto minimizeheat
lossfromthetank.Furtherreductionin heatlosscanbe
accomplishedbyinsulatingthehotwaterlinesfromthe
waterheater.
PIPE
INSULATION
_" INSULATION1_fl
FIGURE 9.
Temperature-Pressure Relief Valve
HOT FLEXIBLE SHUT-OFF
OUTLET WATER CONNECTORS VALVE
TO
HOUSE
COLD
INLET
THREADED THREADED WATER
TO SWEAT TOSWEAT LINE
COUPLING COUPLING
3f4" THREADED A _ 3/4" THREADED
NIPPLE __'_---- NIPPLE
NOT COL
TEMPERATURE-
0
0
PRESSURE
RELIEF VALVE
DISCHARGE
-- PIPE
(DO NOT CAP
OR PLUG)
[
AIR%AP
__iJ FLOOR DRAIN
FIGURE 8.
T & P Valve and Pipe Insulation
Remove insulation for T & P valve and pipe connections from
carton.
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 insulation
does not interfere with the lever of the T & P valve.
Secure all insulation using tape.
Explosion Hazard
Temperature-pressure relief valve
must comply with ANSI Z21.22
CSA 4.4 andASMEcode.
Properly sized temperature-relief
valve must be installed in opening
provided.
Can result in overheating and
excessive tank pressure.
o Can cause serious injury or death.
I0
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 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 electric heaters, watts x 3.412 equals Btu/hr input rate).
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.
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