11
INSTALLATION INSTRUCTIONS
cm) and not more than twelve (12) inches (30.5 cm)
above a floor drain.
• Must not be restricted in any way. Do not thread,
cap, or in any way restrict the end of this outlet.
• Must be of a material capable of withstanding 210
o
F
(99
o
C) without distortion.
• Must be installed to allow complete drainage of the
relief valve and discharge line.
• Must terminate at an adequate free-flowing drain.
Pressure Build-up in a Water System
When the water heater operates, the heated water
expands creating a pressure build-up. This is a
natural function and is one of the reasons for install-
ing a temperature and pressure-relief valve. If the cold
water supply line has a built-in water meter, check
valve, or pressure-reducing valve, a suitable expan-
sion tank must be installed to prevent pressure build-
up or water hammer effect. Otherwise, the warranty is
void (see Figure 10). An indication of pressure build-up
is frequent discharges of water from the relief valve.
If the relief valve discharges water on a continuous
basis, it may indicate a malfunction of the relief valve,
and a qualified service technician must be called to
have the system checked, and the problem corrected.
Filling the Water Heater
NEVER
operate the water heater unless it is
completely filled with water. Failure to follow this
instruction can result in premature failure of the
water heater that is not covered by the warranty.
Check that all of the water piping connections have
been made. To fill the water heater:
1) Make sure that the water heater drain valve is
closed by inserting a flat head screwdriver into the
slot on the head of the drain valve and turning the
knob clockwise
.
2) Open the cold water supply manual shut-off valve.
This valve must remain open, as long as the water
heater is in use. NEVER operate the water heater with
the cold water supply manual shut-off valve closed.
3) To make sure the water heater is completely full of
water, open all of the hot water faucets in the house
to let the air out of the water heater and plumbing
system. Leave the faucets open until a constant
flow of water is obtained.
4) Check all of the plumbing connections to make sure
there are no leaks.
Gas Connections
DO NOT
attempt to use this water heater with
any gas other than the type of gas shown on
the water heater rating plate. Failure to follow
this instruction can result in property damage, per-
sonal injury, or death.
The gas piping must be installed as indicated in
Figure 10. For the correct size of piping for this water
heater, consult CAN/CSA B149.1, National Gas and
Propane Installation Codes (in Canada) and/or the
National Fuel Gas Code, ANSI Z223.1/NFPA 54, in
the United States. Only new piping with cleanly cut
threads may be used, together with a suitable sealing
compound that is approved for natural and propane
gases. It is mandatory that a readily accessible manual
shut-off valve be installed in the gas supply line. The
gas supply manual shut-off valve must be close to
the water heater. A drip leg (sediment trap) must
be installed in the gas line ahead of the gas control
valve to prevent dirt from entering it. A union must be
installed between the gas control valve and the gas
supply manual shut-off valve for easy maintenance of
the water heater.
NEVER
use an open flame to test for gas leaks.
A fire or explosion could occur resulting in property
damage, personal injury, or death.
The water heater and its gas connection must
be leak tested before placing the appliance into opera-
tion. To leak test the system:
1) Turn on the manual gas shut-off valve near the
water heater.
2) Use a soapy water solution to test all connections
and fittings for leaks. Bubbles indicate a gas leak.
3) Correct all leaks.
Make sure that the inlet pressure to the water heater
does not exceed
1
/
2
psi (3.5 kPa) for both natural and
propane gases. Pressures in excess of
1
/
2
psi (3.5 kPa)
can damage the gas control valve, resulting in a fire or
explosion from leaking gas. For purposes of adjustment,
the minimum inlet pressure is indicated on the water
heater rating plate.
If any pressure testing of the gas line is undertak-
en at test pressures in excess of
1
/
2
psi (3.5 kPa),
the water heater and its gas supply manual shut-
off valve must be disconnected from the gas supply
