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Residenal Electric Water Heater Use and Care Guide • 13
INSTALLATION
INSTALLATION
Discharge
Pipe
Drain
Pipe
Condensate
Flextubing
Figure 16 - The end of the T&P Relief Valve dis-
charge pipe must stop no more than 6” (15 cm)
above a floor drain or outside.
Step 9:
Install Shut-O and
Tempering Valves
1
Install a manual shut-o valve
(available at your local
plumbing supplier) on the
cold water line that supplies the water
heater. Install the shut-o valve near
the water heater so that it is readily
accessible. Only use valves that are
compable with potable water. Use
only full-ow ball or gate valves. Other
types of valves may cause excessive
restricon to the water ow.
NOTICE: An automac cold water
shut-o valve is available for purchase
(see the “Repair Parts” secon of
this manual). This is to be installed
on the cold water line near the water
heater. Make sure the module cable
can be easily plugged into the Control
Assembly (within 30”/76 cm). See
included kit instrucons found with
the automac cold water shut-o valve
for further installaon instrucons.
2
Install Thermostac Mixing
Valves at each point-of-use
(for example, the kitchen sink,
bathroom sink, bath or shower).
Consult the valve manufacturer’s
instrucons or a qualied person.
WARNING! Even if the water
heater’s thermostat(s) are set to a
relavely low temperature, hot water
can scald. Install Thermostac Mixing
Valves at each point-of-use to reduce
the risk of scalding (see page 4 and
Figure 8).
3
For water heaters that are fed
by a solar water heang
system (or any other pre-
heang system), always install a
Thermostac Mixing Valve or other
temperature liming device in the inlet
water supply line to limit water supply
inlet temperature to 120°F/49°C. Solar
water heating systems can supply
water with temperatures exceeding
170°F/77°C and may result in water
heater malfunction.
WARNING! Hot water provided
by solar heang systems can cause
severe burns instantly, resulng in
severe injury or death (see page 4).
Step 10:
Connect the Water
Supply
1
Determine the type of water
pipes in your home. Most
homes use CPVC or cross-
linked polyethylene (PEX). Use ngs
appropriate for the type of pipe in
your home. Do not use iron or PVC
pipe – they are not suitable for potable
water.
2
The water heater can be
plumbed to either the top or
side connecons, however,
only one opon shall be chosen
(neither top nor side connecons may
be used in combinaon). The unused
connecons must be capped with the
caps provided.
3
Connect the cold water supply
using 3/4 inch Naonal Pipe
Thread “NPT” to the BLUE
cold water connecon on either the
top or side of the water heater.
To avoid damaging gaskets in the ex
lines, use a second wrench at the hot
and cold nipples to counter torque
when installing or removing water
connecons. DO NOT overghten.
For ease of removing the water heater
for service or replacement, connect
the water pipes with a coupling called
a union. We recommend using a
dielectric-type union (available at your
local plumbing supplier). Dielectric
unions can help prevent corrosion
caused by ny electric currents
common in copper water pipes and
can help extend the life of the water
heater.
NOTICE: This water heater model
contains an oponal side outlet
connecon (J-tube) that has an
orientaon mark that must line up
with arrow (in a 12 o’clock posion).
4
Connect the hot water supply
using 3/4 inch NPT to the
corresponding RED hot water
connecon. Follow the same
connecon guidelines as for the cold
water supply.
IMPORTANT: DO NOT use top and side
connecons in conjuncon.
Plumb the water heater using the hot
and cold connecons located on the
top of the water heater, or the hot and
cold connecons located on the side of
the water heater.
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