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the heater. The second wrench
must be used to hold the heater's
fittings securely because they are
designed to turn freely.
•
Flexible water supply hoses
are recommended for your
installation.
•
Well water must be treated.
•
Only potable water can be used
with this water heater. Do not
introduce pool or spa water, or
any chemically treated water into
the water heater.
•
Do not connect to a salt-
regenerated water softener or a
water supply of salt water.
•
The warranty will not cover
damage caused by water quality.
•
Recommended operating
pressure: 50 to 60 psi. Higher
pressures require a pressure
reducing valve.
•
Installations above the ceiling or in
an attic require a bleed air separator.
•
A properly-sized arrestor should
be installed where water hammer
exists.
NOTICE: Do not supply electrical
power to your water heater yet. If you
Figure 4 .
Hot
Cold
do so at this point, you will damage
your heating element(s).
1. Make sure that the water supply
is turned off.
2. Connect the hot water line to the
hot outlet of the water heater.
(Figure 4.)
3. Connect the cold water line to
the cold inlet of the water heater.
(Figure 4.)
4. Open the valve on the main water
line to supply water to the heater.
5. Open several hot water fixtures
and allow water to run through
the water heater for several
minutes to purge air from the
water lines.
6. Check for water leaks. Correct
any that are found.
7. If you installed a T&P valve to
meet local code requirements,
operate it manually several
times to allow any trapped air to
escape.
NOTICE: Failure to purge air from
the water lines can leave air pockets,
causing damage to the heating
elements when power is applied.
Install Electrical
4
Service
WARNING
Failure to observe these warnings
could lead to an improper
installation, and the risks include fire,
electrical shock, and/or death:
•
Installation must be performed
by a qualified installer. The
installer (licensed professional)
is responsible for the correct
installation of the water heater
and for compliance with all
national, state / provincial, and
local codes.
•
Refer to the electrical
requirements and electrical
schematic during installation and
service.
•
Turn off power service at the
main circuit breaker(s) prior
to installation. Working on an
energized circuit can result in
severe injury or death from
electrical shock.
•
Some models must be connected to
more than one branch circuit, and
more than one disconnect switch
may be required to de-energize the
equipment. All branch circuits must
be disconnected during installa on
or service.
•
Install and properly ground the
unit in accordance with local
codes, or in the absence of local
codes, with the current edition
of the National Electrical Code:
ANSI/NFPA 70 in the USA or CSA
standard C22.1 Canadian Electrical
Code, Part 1 in Canada.
NOTICE:
When using stranded wire, make sure
that all strands are secure inside the
terminal block. A loose strand can
cause a short circuit and damage the
circuit board.
1. Be sure the electrical power to
the water heater is turned OFF
at the circuit breaker panel (or
remove the circuit's fuses).
2.
Using a non-contact circuit tester,
check the wiring to make certain
the power is OFF.
3.
Check the water heater's ra ng
plate and ensure that the electrical
service's voltage, wiring size
Electric Tankless Water Heater
•
13
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