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TheDischargePipe:
•Shallnotbesmallerinsizethantheoutletpipesizeofthevalve,or
haveanyreducingcouplingsorotherrestrictions.
•Shallnotbepluggedorblocked.
•Shallbeofmateriallistedforhotwaterdistribution.
•Shallbeinstalledsoastoallowcompletedrainageofboththe
temperature-pressurereliefvalve,andthedischargepipe.
•Shallterminateatanadequatedrain.
•Shallnothaveanyvalvebetweenthereliefvalveandtank.
Watertemperatureover125°F
(52°C)cancausesevereburns
instantlyresultinginsevereinjuryor
death_
Children,the elderly,andthe
physicallyormentallydisabledareat
highestriskforscaldiniury.
Feelwaterbeforebathingor
showering,
Temperaturelimitingvalvesare
available.
Readinstructionmanualfor safe
temperaturesetting.
Thetemperature-pressurereliefvalvemustbemanuallyoperatedatleast
onceayear.Cautionshouldbetakentoensurethat(1)nooneisinfront
oforaroundtheoutletofthetemperature-pressurereliefvalvedischarge
line,and(2)thewatermanuallydischargedwillnotcauseanybodilyinjury
orpropertydamagebecausethewatermaybeextremelyhot.
Ifaftermanuallyoperatingthevalve,itfailstocompletelyresetand
continuestoreleasewater,immediatelyclosethecoldwaterinletto
thewaterheater,followthedraininginstructions,andreplacethe
temperature-pressurereliefvalvewithanewone.
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
[nstaNation.
" 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 FuelGas Code (ANSI Z223.t / NFPA-54)whichever applies. Copper
and brass tubing and fittings (except tinlined copper tubing) shall notbe 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/NFPA54 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
• A drip 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
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 inthis 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 Code ANSI 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.
- Leak test before operating heater.
_' Disconnect gas piping and shut-off
valve before pressure testing
system.
Use pipe joint compound orteflon tape marked as being resistant to the
action of petroleum [Propane (L.R)] gases.
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