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Thiswaterheatershallnotbeconnectedtoanyheating
systemsorcomponent(s)usedwithanon-potablewaterheating
appliance.
Allpipingcomponentsconnectedtothisunitforspaceheating
applicationsshallbesuitableforusewithpotablewater.
Toxicchemicals,suchasthoseusedforboilertreatmentshall
notbeintroducedintothissystem.
Watersupplysystemsmay,becauseofsucheventsashighline
pressure,frequentcut-offsortheeffectsofwaterhammerhave
installeddevicessuchaspressurereducingvalves,checkvalves,
backflowpreventers,etc.tocontrolthesetypesofproblems.
Whenthesedevicesarenotequippedwithaninternalby-pass,
andnoothermeasuresaretaken,thedevicescausethewater
systemtobeclosed.Aswaterisheated,itexpands(thermal
expansion)andclosedsystemsdonotallowfortheexpansion
ofheatedwater.
Thewaterwithinthewaterheatertankexpandsasitisheated
andincreasesthepressureofthewatersystem.Iftherelieving
pointofthewaterheater'stemperature-pressurereliefvalve
isreached,thevalvewillrelievetheexcesspressure.The
temperature-pressurerelief valve is not intended for the
constant relief of thermal expansion. This is an unacceptable
condition and must be corrected. It is recommended that any
devices installed which could create a closed system have a
by-pass and/or the system have an expansion tank to relieve the
pressure built by thermal expansion in the water system. Refer
to the Thermal Expansion section under Troubleshooting Guide
or contact local plumbing authority or local Sears Service Center
on how to control this situation.
NOTE: To protect against untimely corrosion of hot and cold
water fittings, it is strongly recommended that di-electric
unions or couplings be installed on this water heater when
connected to copper pipe.
Property Damage Hazard
• Avoid water heater damage.
• Install thermal expansion tank if necessary.
. Do not apply heat to cold water inlet.
. Contact qualified installer or Sears Service Center.
Look at the top of the water heater. The cold water inlet is
marked "COLD". Put two or three turns of Teflon tape around
the threaded end of the threaded-to-sweat coupling and
around both ends of the 314" NPT threaded nipple. Using
flexible connectors, connect the cold water pipe to the cold
water inlet of the water heater.
NOTE: This water heater is super insulated to minimize
heat loss from the tank. Further reduction in heat loss
can be accomplished by insulating the hot water lines
from the water heater.
INSTALLATION COMPLETED USING
INSTALLATION KiT
FLEXIBLE
WATER
CONNECTORS
HOT WATER COLD WATER
____ODTLET ,j2% T
CODPUNG_ COUPLING
DRAFT HOOD
TENPERATURE"
"4F--'--PRESSURE
RELIEF VALVE
__R _'--_ DISCHARGE PIPE
{Do net cap or plug)
'_"-_ FLOOR DRAIN
FIGURE 16.
T & P Valve and Pipe insulation
Remove insulation for T & P valve and pipe connections from
carton.
Figure 16 shows the typical attachment of the water piping to
the water heater. The water heater is equipped with 3/4" NPT
water connections.
NOTE: If using copper tubing, solder tubing to an adapter
before attaching the adapter to the cold water inlet
connection. Do not solder the cold water supply line directly
to the cold water inlet. It will harm the dip tube and damage
the tank.
Look at the top cover of the water heater. The water outlet is
marked "HOT". Put two or three turns of Teflon tape around the
threaded end of the threaded-to-sweat coupling and around
both ends of the 3/4" NPT threaded nipple. Using flexible
connectors, connect the hot water pipe to the hot water outlet
on the water heater.
13
PiPE
iNSULATION FLUE PiPE
FIGURE 16A.
Fit pipe insulation over the incoming cold water line and the hot
water line. Make sure that the insulation is against the top cover
of the heater.
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