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Installation
Inlet gas pressures outside the above range of
Ÿ
values may adversely affect the performance of
the water heater. These pressures are measured
when the water heater is fully operational.
The intake pressure must not exceed the above
Ÿ
maximum values; gas pressures outside the
specified range will result in hazardous
operating conditions and equipment damage.
Be sure to disconnect the gas line from the water
Ÿ
heater before the main gas supply pressure test
is completed to avoid damaging the water
heater.
If the heater's supply pressure is greater than the
Ÿ
specified maximum, a pressure regulator is
required. The regulator must reduce the gas
pressure to within acceptable limits.
Install the gas regulator according to the
Ÿ
manufacturer's instructions.
The regulator must be sized for the water heater
Ÿ
input and provided with the specified pressure
listed on the nameplate.
It is recommended that there be at least 3 ft (1
Ÿ
m) of tubing between the regulator outlet and
the water inlet gas connection in the absence of
a minimum installation distance.
3.10 Gas Connection
1. Install a manual gas shut-off valve between the
water heater and the air supply line.
2. When the gas connection is completed, the gas
leak test must be performed by applying soapy
water to all gas fittings and observing the air
bubbles or using a gas leak detection device.
During any system stress test where the test
Ÿ
pressure exceeds 1/2 psi (3.5 KPa), it must be
the water heater and its separate shut-off
valve are disconnected from the air supply
piping system.
During pressure testing of any gas supply
Ÿ
piping system with a test pressure equal to or
less than 1/2 psi (3.5 KPa), the water heater
must be isolated from the air supply piping
system by closing its separate manual shut-off
valve.
3. Always remove any debris and/or water gas
lines before connecting to the air intake.
24
NOTICE
Do not use this product if any parts are
underwater. Contact the installer or service
agency immediately to replace the flooded
water heater. Do not try to repair the heater.
Replacement must be done!
water outlet
water outlet pipe
gas water heater
Teflon tape
hose joint
buckle
NOTICE
Use sealant tape or other approved sealing
method on the threads for a secure, no
water or gas leakage.
3.11 Water Connection
WARNING
Do not use this product if any parts are
underwater. Contact the installer or service
agency immediately to replace the flooded
water heater. Do not try to repair the
heater. Replacement must be done!
NOTICE
Do not reverse the hot and cold inlet
connections of the water heater. if connected
in reverse, the water heater will not start
properly.
gas inlet
water inlet
gas pipe
water inlet pipe
rubber pipe
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