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Thiswaterheatershallnotbeconnectedtoanyheatingsystems
or component(s)usedwitha non-potablewaterheating
appliance.
Allpipingcomponentsconnectedtothisunitforspaceheating
applicationsshallbesuitableforusewithpotablewater.
Lookatthetopofthewaterheater.Thecoldwaterinletis
marked"COLD".Puttwoorthreeturnsofteflontapearound
thethreadedendofthethreaded-to-sweatcouplingand
aroundbothendsofthe3/4"NPTthreadednipple.Using
flexibleconnectors,connectthecoldwaterpipetothecold
waterinletofthewaterheater.
Toxicchemicals,suchasthoseusedforboilertreatmentshall
notbeintroducedintothissystem.
Watersupplysystemsmay,becauseofsucheventsashigh
linepressure,frequentcut-offsortheeffectsofwaterhammer
amongothers,haveinstalleddevicessuchaspressurereducing
valves,checkvalves,backflowpreventers,etc.tocontrolthese
typesofproblems.Whenthesedevicesarenotequippedwith
aninternalby-pass,andnoothermeasuresaretaken,the
devicescausethewatersystemtobeclosed.Aswaterisheated,
itexpands(thermalexpansion)andclosedsystemsdonotallow
fortheexpansionofheatedwater.
Thewaterwithinthewaterheatertankexpandsasitisheated
andincreasesthepressureofthewatersystem.Iftherelieving
pointofthewaterheater'stemperature-pressurereliefvalveis
reached,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.
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: 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.
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
OUTLET INLET
I _ I sHUTOFF
VALVE
THREADED TO THREADED TO
SWEAT COUPLING SWEAT COUPLING
3/4"THREADED
HEAT TRAP WITH """"1_ _ 3/4'*THREADED
SECONDARY COUPLING/HEATTRAP
ANODE
DRAFT HOOD
FIGURE 15.
TEMPERATURE -
PRESSURE
RELIEF VALVE
_'_ DmSCHARGE PIPE
(Do not cap or plug)
6"
AmR
GAP
_" FLOOR DRAIN
T & P Valve and Pipe Insulation
Remove insulation for T & P valve and pipe connections from
carton.
PiPE
iNSULATiON FLUE PiPE
= t
E t
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