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Gas Connections cont.-
1.
Connect this water heater only to the type of gas (Natural or Propane) as shown
on the rating plate. Use clean black iron pipe or equivalent material approved by
local codes and ordinances (dirt and scale from the pipe can enter the gas valve
and cause it to malfunction). The inlet gas line must have a minimum length of 3 in
(7.6 cm) drip leg (sediment trap) installed as close to the water heater's gas valve
as possible. A ground joint union must be installed as close to the water heater as
possible in the gas supply line feeding the water heater to permit servicing of the
water heater. Compounds used on the threaded joints of the gas piping must be
resistant to the action of liquefied petroleum gases/propane gas. DO NOT apply
pipe dope to the gas valve inlet and make certain that no pipe dope has become
lodged in the inlet screen of the gas valve. Extreme care must be taken to ensure
no pipe dope enters the gas valve. Avoid excessive torque when tightening the gas
supply line to the gas valve. Excessive torque may result in cracking of the gas
valve housing and could create a gas leak. When tightening gas supply line to L.P.
control, it is recommended to hold the inlet body of the control securely with an
adequate wrench. The suggested maximum torque is 31.5 ft. lbs. (4.4 kg-m).
The manufacturer of this water heater will not be liable for any damage or injury
caused as a result of a cracked gas inlet as a result of excessive torque.
2.
This water heater and its gas connection must be leak tested before placing the
water heater in operation. Check for gas leaks with a soap and water solution and
a brush or a commercial leak detector fluid. NEVER USE A MATCH OR OPEN
FLAME FOR TESTING!
3.
While checking for leaks care must be taken to prevent solution from
contacting the electrical connections at the control. If electrical connections at the
control become wet, they must be thoroughly dried before attempting to operate
the water heater.
The water heater and individual shutoff valve must be disconnected from the gas
supply piping system during any pressure testing of the system at test pressures
in excess of ½ psi (3.5 kPa). The water heater must be isolated from the gas
supply piping system by closing its manual shutoff valve during any pressure
testing of the gas supply system at test pressures equal to or less than ½ psi (3.5
kPa). The supply line must be capped when not connected to the water heater.
The gas inlet pressure to the gas control must never exceed 14 in of water column
(½ psi) (3.5 kPa). The gas supply system and any pressure regulating device in
the gas line must be specified, inspected and adjusted to assure a gas supply
pressure of ½ psi (3.5 kPa) or less. Failure to do so may result in severe injury or
death.
WARNING
CAUTION
WARNING
14
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