Kenmore 33916 Operation Manual - Page 17

Sediment Traps

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Sediment Traps Water heaters covered in this manual have been tested and approved for installation at elevations up to 7,700 feet (2,347 m) above sea level. For installation above 7,700 feet (2,347m), the water heater's Btu input should be reduced at the rate of 4 percent for each 1,000 feet (305 m) above sea level which requires replacement of the burner orifice in accordance with the current edition of the National Fuel Gas Code ANSI Z223.1/NFPA 54. Contact your local gas supplier for further information. Failure to replace the standard orifice with the proper high altitude orifice when installed at elevations above 7,700 feet (2,347m) could result in improper and inefficient operation of the appliance, producing carbon monoxide gas in excess of the safe limits. This could result in serious injury or death. Contact your local gas supplier for any specific changes that may be required in your area. Contaminants in the gas lines may cause improper operation of the gas control valve that may result in fire or explosion. Before attaching the gas line be sure that all gas pipe is clean on the inside. To trap any dirt or foreign material in the gas supply line, a drip leg (sometimes called a sediment trap) must be incorporated in the piping. The drip leg must be readily accessible. Install in accordance with the Gas Piping section. Refer to the current edition of the National Fuel Gas Code, ANSI Z223.1/NFPA 54. A sediment trap shall be installed as close to the inlet of the water heater as practical at the time of water heater 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. If a tee fitting is used, it shall be installed in conformance with one of the methods of installation, shown in Figures 19 and 20. Use pipe joint compound or Teflon tape marked as being resistant to the action of petroleum (Propane [L.P.]) gases. The appliance and its gas connection must be leak tested before placing the appliance in operation. The appliance and its individual shutoff valve shall be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 pound per square inch (3.5 kPa). It shall be isolated from the gas supply piping system by closing its individual manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 pound per square inch (3.5 kPa). Connecting the gas piping to the gas control valve of the water heater can be accomplished by either of the two methods shown in Figures 20 and 21. 17 FIGURE 20. GAS PIPING WITH FLEXIBLE CONNECTOR. FIGURE 21. GAS PIPING WITH ALL BLACK IRON PIPE TO GAS CONTROL.

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17
Water heaters covered in this manual have been tested and
approved for installation at elevations up to 7,700 feet (2,347m)
above sea level. For installation above 7,700 feet (2,347m), the
water heater’s Btu input should be reduced at the rate of 4 percent
for each 1,000 feet (305 m) above sea level which requires
replacement of the burner orifice in accordance with the current
edition of the National Fuel Gas Code ANSI Z223.1/NFPA 54.
Contact your local gas supplier for further information.
Failure to replace the standard orifice with the proper high
altitude orifice when installed at elevations above 7,700 feet
(2,347m) could result in improper and inefficient operation of
the appliance, producing carbon monoxide gas in excess of the
safe limits. This could result in serious injury or death. Contact
your local gas supplier for any specific changes that may be
required in your area.
Use pipe joint compound or Teflon tape marked as being resistant
to the action of petroleum (Propane [L.P.]) gases.
The appliance and its gas connection must be leak tested before
placing the appliance in operation.
The appliance and its individual shutoff valve shall be
disconnected from the gas supply piping system during any
pressure testing of that system at test pressures in excess of
1/2 pound per square inch (3.5 kPa).
It shall be isolated from
the gas supply piping system by closing its individual manual
shutoff valve during any pressure testing of the gas supply piping
system at test pressures equal to or less than 1/2 pound per
square inch (3.5 kPa).
Connecting the gas piping to the gas control valve of the water
heater can be accomplished by either of the two methods shown
in Figures 20 and 21.
Sediment Traps
Contaminants in the gas lines may cause improper operation
of the gas control valve that may result in fire or explosion.
Before attaching the gas line be sure that all gas pipe is clean
on the inside.
To trap any dirt or foreign material in the gas
supply line, a drip leg (sometimes called a sediment trap) must
be incorporated in the piping.
The drip leg must be readily
accessible.
Install in accordance with the
Gas Piping
section.
Refer to the current edition of the National Fuel Gas Code,
ANSI Z223.1/NFPA 54.
A sediment trap shall be installed as close to the inlet of the water
heater as practical at the time of water heater 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. If a tee fitting
is used, it shall be installed in
conformance with one of the methods of installation, shown in
Figures 19 and 20.
FIGURE 20.
GAS PIPING WITH FLEXIBLE CONNECTOR.
FIGURE 21.
GAS PIPING WITH ALL
BLACK IRON PIPE TO GAS CONTROL.