Residen al Electric Water Heater Use and Care Guide • 13
NOTICE:
Most water heater models
contain energy saving heat traps in the
inlet and outlet connec ons. Do not
remove the heat traps.
3
Connect the hot water supply
using 3/4 inch NPT to the hot
water outlet. Follow the same
connec on guidelines as for the cold
water supply.
4
Install insula on (or heat tape)
on the water pipes especially if
the indoor installa on area is
subject to freezing temperatures.
Insula ng the hot water pipes can
increase energy e
ffi
ciency.
5
Double check to make sure the
hot and cold water pipes are
connected to the correct hot
and cold water
fi
ngs on the water
heater.
6
If needed, install (or adjust) the
home’s Pressure Reducing
Valve to 50-60 psi and install a
Thermal Expansion Tank.
Figure 15 -
A Pressure Reducing Valve is
required if your home’s water pressure is
above 80 psi.
Figure 16 -
The Thermal Expansion Tank
should be pressurized with air, to match the
home’s incoming water pressure.
Step 8:
Verify connec ons and
completely
fi
ll tank
To remove air from the tank and allow
the tank to
fi
ll completely with water,
follow these steps:
1
Remove the aerator at the
nearest hot water faucet. This
allows any debris in the tank or
plumbing system to be washed out.
2
Turn the cold water supply
back on.
Full-
fl
ow ball valve
Figure 17 -
Fully open the cold water supply
valve.
3
Open a hot water faucet and
allow the water to run un l it
fl
ows with a full stream.
4
Let the water run full stream
for three full minutes.
5
Close the hot water faucet and
replace the aerator.
6
Check inlet and outlet connec-
ons and water pipes for leaks.
Dry all pipes so that any drips
or leaks will be apparent. Repair any
leaks. Almost all leaks occur at connec-
ons and are not a tank leak.
INS
TALLA
TION
