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Thiswaterheatershallnotbeconnectedtoanyheatingsystems
or component(s)usedwitha non-potablewaterheating
appliance.
Allpipingcomponentsconnectedtothisunitforspaceheating
applicationsshallbesuitableforusewithpotablewater.
Lookatthetopofthewaterheater.Thecoldwaterinletis
marked'COLD".Puttwoorthreeturnsofteflontapearound
thethreadedendof thethreaded-to-sweatcouplingand
aroundbothendsofthe3/4"NPTthreadednipple.Using
flexibleconnectors,connectthecoldwaterpipetothecold
waterinletofthewaterheater.
Toxicchemicals,suchasthoseusedforboilertreatmentshall
notbeintroducedintothissystem.
Watersupplysystemsmay,becauseofsucheventsashigh
linepressure,frequentcut-offsortheeffectsofwaterhammer
amongothers,haveinstalleddevicessuchaspressure
reducingvalves,checkvalves,backflowpreventers,etc.to
controlthesetypesofproblems.Whenthesedevicesarenot
equippedwithaninternalby-pass,andnoothermeasuresare
taken,thedevicescausethewatersystemtobeclosed.As
wateris heated,it expands(thermalexpansion)andclosed
systemsdonotallowfortheexpansionofheatedwater.
Thewaterwithinthewaterheatertankexpandsasitisheated
andincreasesthepressureofthewatersystem.Iftherelieving
pointofthewaterheater'stemperature-pressurereliefvalveis
reached,thevalvewill relievetheexcesspressure.The
temperature-pressurereliefvalveis notintendedfor the
constantreliefofthermalexpansion.Thisisanunacceptable
conditionandmustbecorrected.It isrecommendedthatany
devicesinstalledwhichcouldcreateaclosedsystemhavea
by-passand/orthesystemhaveanexpansiontanktorelieve
thepressurebuiltbythermalexpansioninthewatersystem.
RefertotheTheTma! Expar_sion 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 dioelectric
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
Figure 15 shows the typical attachment of the water piping to
the water heater. The water heater is equipped with 3/4" NPT
water connections.
NOTE: This water heater is super insulated to minimize
heat moss 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
OUTLET INLET
l l SHUTOFF
VALVE
THREADED TO THREADED TO
DRAFT HOOD
TEMPERATURE-
PRESSURE
RELIEF VALVE
_ DISCHARGE PIPE
(Do not cap or pJug)
--r
6"
AIR
GAP
_'_ FLOOR DRAIN
FIGURE 15.
T & P Valve and Pipe hsumation
Remove insulation for T & P valve and pipe connections from
carton.
PIPE
INSULATION FLUE PIPE
NOTE: If using copper tubing, solder tubing to an adapter
before attaching the adapter to the cold water inlet
connection. Do not somder the cold water suppmy Hne 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 threadedoto-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.
FIGURE 15A.
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.
13
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