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TheDischargePipe:
•Shallnotbesmallerinsizethantheoutletpipesizeofthevalve,or
haveanyreducingcouplingsorotherrestrictions.
•Shallnotbepluggedorblocked.
•Shallbeofmateriallistedforhotwaterdistribution.
•Shallbeinstalledsoastoallowcompletedrainageofboththe
temperature-pressurereliefvalve,andthedischargepipe.
•Shallterminateatanadequatedrain.
•Shallnothaveanyvalvebetweenthereliefvalveandtank.
V!Wm7_'I =I
Water temperature over 125°F
(52°C) can cause severe burns
instantly resulting in severe injury or
death.
Children, the elderly, and the
physically or mentally disabled are at
highest risk for scald injury.
Feel water before bathing or
showering.
Temperature limiting valves are
available.
Read instruction manual for safe
temperature setting.
The temperature-pressure relief valve must be manually operated at
least once a year. Caution should be taken to ensure that (1) no one
is in front of or around the outlet of the temperature-pressure relief
valve discharge line, and (2) the water manually discharged will not
cause any bodily injury or property damage because the water may
be extremely hot.
If after manually operating the valve, it fails to completely reset and
continues to release water, immediately close the cold water inlet
to the water heater, follow the draining instructions, and replace the
temperature-pressure relief valve with a new one.
GAS PIPING
Fire and Explosion Hazard
• Do not use water heater with any
gas other than the gas shown on
the rating plate.
• Excessive pressure to gas control
valve can cause serious injury or
death.
• Turn off gas lines during
installation.
• Contact qualified installer or
service agency.
Make sure the gas supplied is the same type listed on the model rating
plate. The inlet gas pressure must not exceed 14 inch water column (3.5
kPa) for natural and propane gas (L.R). The minimum inlet gas pressure
shown on the rating plate is that which will permit firing at rated input.
All gas piping must comply with local codes and ordinances or with the
National Fuel Gas Code (ANSI Z223.1! NFPA-54) whichever applies.
Copper and brass tubing and fittings (except tin lined copper tubing)
shall not be used.
If the gas control valve is subjected to pressures exceeding 1/2 psi
(3.5 kPa), the damage to the gas control valve could result in a fire or
explosion from leaking gas.
If the main gas line Shut-off serving all gas appliances is used, also turn
"off" the gas at each appliance. Leave all gas appliances shut "off" until
the water heater installation is complete.
A gas line of sufficient size must be run to the water heater. Consult the
current edition of National Fuel Gas Code ANSI Z223.1/NFPA 54 and
your gas supplier concerning pipe size.
There must be:
• A readily accessible manual shut off valve in the gas supply line serving
the water heater, and
• Adrip leg (sediment trap) ahead of the gas control valve to help prevent
dirt and foreign materials from entering the gas control valve.
• A flexible gas connector or a ground joint union between the shut off
valve and control valve to permit servicing of the unit.
Be sure to check all the gas piping for leaks before lighting the water
heater. Use a soapy water solution, not a match or open flame. Rinse
off soapy solution and wipe dry.
Breathing Hazard - Carbon Monoxide Gas
I
• High altitude orifice must be installed
for operation above 7,700 ft (2,347 m).
• Contact a qualified installer or service
agency.
Breathing carbon monoxide can cause brain damage or
death. Always read and understand instruction manual.
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. When
installed at elevations above 7,700 feet (2,347 m), input rating 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 National Fuel Gas CodeANSl Z223.1/NFPA 54. Contact your local
gas supplier for further information.
Failure to replace the standard orifice with a high altitude orifice when
installed at elevations above 7,700 feet (2,347 m) could result in improper
and inefficient operation of the appliance, producing carbon monoxide
gas in excess of safe limits. This could result in serious injury or death.
Contact your gas supplier for any specific changes which may be required
in your area.
Fire and Explosion Hazard
• Use joint compound or tape
compatible with propane.
• Leaktest before operating heater.
Disconnect gas piping and shut-off
valve before pressure testing
system.
Use pipe joint compound or teflon tape marked as being resistant to the
action of petroleum [Propane (L.R)] gases.
15
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