This water heater is certified for instal-
lations up to 3,280 feet (1000 m) above
sea level. The input rating of this water
heater is based on sea level operation.
At higher elevations the actual input
rate may be lower than the value listed
on the rating label.
NOTICE: For installations above
3,280 feet ( 1 , 0 0 0 m ) elevation, the
Altitude Chip on the PC board must be
replaced. Do not install this water
heater at elevations above 3,280 feet
(1,000 m) without installing the proper
Altitude Chip. Please contact your in-
staller, local gas supplier, place of pur-
chase, or the Customer Service phone
number as listed in this Instruction
Manual for more information.
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.
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 gas shut-off valve(s) to
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 should also be
leak tested after the water heater is placed
in operation.
Pressure Testing the Gas Supply System
The water heater and its manual gas shut-
off valve must be disconnected from the
gas supply piping system during any
pressure testing of the system at
pressures in excess of 1/2 psi (14” w.c.)
(3.5 kPa).
The water heater must be isolated from
the gas piping system by closing the
manual gas shut-off valve during any
pressure testing of the gas supply piping at
pressures equal to or less than
1/2 psi (14” w.c.) (3.5 kPa).
WARNING: Never use
an open flame to test for
gas leaks, as property
damage, personal injury, or
death could result.
WARNING: Install a
gas pressure regulator, in
the gas supply line, which
does not exceed the
maximum supply pressure.
DO NOT use an industrial
type gas regulator.
High Altitude
Gas Supply
The supplied Manual Gas Appliance Shutoff
Valve must be installed at the gas connection
of the water heater at the time of installation
(see Figure to the left).
The branch gas supply line to the water
heater should be a minimum of 3/4” black
steel pipe or other approved gas piping
material.
A ground joint 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) ANSI Z223.1 and CAN
B149 code mandates a manual gas shut-off
valve: See NFGC & B149 for complete
instructions.
If flexible connectors are used, the maximum
length shall not exceed 36” (91 cm) and must
meet the requirements in ANSI Z21.24 -
Connectors for Gas Appliances.
If lever type gas shut offs are used, they shall
be T-Handle type.
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.
A sediment trap should be installed at the
bottom of the gas line.
Do not use excessive force (over 31.5 ft lbs.)
(42.7 Nm) in tightening the pipe, particularly
if teflon pipe compound is used, as the unit
may be damaged.
The inlet gas pressure to the water heater
must not exceed 10.5” w.c. (2.6 kPa) for
natural or 14” w.c. (3.5 kPa) for 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.
NOTICE:
To ensure proper operation
of the heater the gas pipe and gas meter
must be sized correctly.
Gas piping shall be in accordance with
local, utility company requirement
and/or in the absence of local codes,
use the latest edition of the National
Fuel Gas Code. In Canada the latest
edition of CSA B149.1 Natural Gas and
Propane installation code.
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