Installation Guide

12 • Electric Mini Tank Water Heater
NOTICE: Most water heater models con-
tain energy saving heat traps in the inlet
and outlet connec ons. Do not remove
the heat traps.
3
Connect the hot water supply
using 1/2” 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
effi 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 re-
quired 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 7:
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.
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.
IF YOU HAVE COPPER PIPES:
If your home has copper water pipes, you
can solder the water pipe connec ons
or use compression fi  ngs which don’t
require soldering. Compression fi  ngs are
easier to install than soldering pipe. Check
with local plumbing offi cials to determine
what types of pipe materials are suitable
for your loca on. Do not use lead-based
solder.
NOTICE: Do not solder pipes while they
are a ached to the water heater. The wa-
ter heater’s inlet and outlet connec ons
contain non-metallic parts which could be
damaged. The proper way to connect the
water heater to copper water pipes is as
follows:
• Solder a short length of pipe (about a
foot or so) to a threaded adapter using
only 95/5  n-an mony or equivalent
solder. A ach the threaded adapters to
the water heater’s connec ons (using
Tefl on® tape or pipe joint compound).
Connect the home’s water pipes by sol-
dering, keeping the connec ons at the
water heater cool with wet rags.
INSTALLATION
INSTALLATION