Use And Care Manual

11
WARNING: Do not
attempt to convert
this water heater for
use with a different
type of gas other than
the type shown on the
rating plate. Such
conversion could
result in hazardous
operating conditions.
High Altitude
This water heater is suitable and certified
for use at high altitude. Refer to the altitude
information on the water heater rating
label for maximum allowable installation
altitude.
!
WARNING: Installations above the
rated altitude as specified on the altitude
label are not authorized and may result
in improper and inefficient operation of
the appliance, producing carbon
monoxide gas in excess of acceptable
limits, which could result in serious
injury or death.
Pressure Testing the Gas Supply System
The water heater and its shut off valve
must be disconnected from the gas supply
piping system during any pressure testing
of that system at test pressures in excess
of 1/2 psi (3.5 kPa).
The water heater must be isolated from the
gas supply piping system by closing it's
individual manual shut off valve during
any pressure testing of the gas supply
piping system at test pressures equal to or
less than 1/2 psi (3.5 kPa)
Gas Supply
Leak Testing
The water heater and its gas connections
must be leak tested at normal operating
pressures before it is placed in operation.
Turn on the manual gas shut-off valve
near the water heater.
Use a soapy water solution to test for
leaks at all connections and fittings.
Bubbles indicate a gas leak that must
be corrected.
The factory connections to the gas control
should also be leak tested after the water
heater is placed in operation.
WARNING: Never
use an open flame to
test for gas leaks, as
property damage,
personal injury, or
death could result.
The branch gas supply line to the water
heater should be clean, properly sized steel
pipe or other approved gas piping material.
A union or ANSI design certified semi-
rigid or flexible gas appliance connector
should be installed in the gas line close to
the water heater. The National Fuel Gas
Code (NFGC) mandates a manual gas
shut-off valve: See (NFGC) for complete
instructions.
If flexible connectors are used, the
maximum length shall not exceed
36" (91.4 cm) and must meet the
requirements in ANSI Z21.24/CSA 6.10-
Connectors for Gas Appliances.
Compound used on the threaded joints of
the gas piping must be of the type resistant
to the action of LP gas. Use compound
sparingly on male threads only.
Where a sediment trap is not incorporated
as part of the appliance, a sediment
trap shall be installed downstream of
the equipment shutoff valve as close to
the inlet of the appliance as practical at
the time the appliance installation. The
sediment trap shall be either a tee fitting
with a capped nipple in the bottom outlet
or other device recognized as an effective
sediment trap.
DO NOT use excessive force over [31.5 ft.
lbs. (42.7 Nm)] in tightening the pipe joint
at the gas control inlet, particularly if teflon
pipe compound is used, as the valve body
may be damaged.
The inlet gas pressure to the water heater
must not exceed 14.0 in. w.c. (3.5 kPa) w.c.
for natural gas, and LP gas. For purposes
of input adjustment, the minimum inlet gas
pressure (with main burner on) is shown on
the water heater rating plate. If high or low
gas pressures are present, contact your gas
supplier for correction.