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Never use this water heater unless it is completely full of w ater. To
preventdamagetothetank,thetankmustbelledwithwater.Water
mustowfromthehot waterfaucetbeforeturning “ON”gastothe
water heater.
Tollthewaterheaterwithwater:
1. Close the water heater drain valve by turning handle to the right
(clockwise).Thedrainvalveisonthelowerfrontofwaterheater.
2. Open the cold water supply valve to the water heater.
note: the cold water supply valve must be left open when the
water heater is in use.
3. Toinsurecompletellingofthetank,allowairtoexitbyopeningnearest
hotwaterfaucet.Allowwatertorununtilaconstantowisobtained.
This will let air out of the water heater and the piping.
4. Check all water piping and connections for leaks. Repair as needed.
vent pIpe asseMBlYThere are three parts of the vent pipe assembly that connect the water
heaterexhaust(locatedonlowerbacksideofwaterheater)toinletof
theblowerassembly(mountedon topofwater heater)asshownin
Figure 1. These parts will need to be assembled according to these
instructions.
AssembleVentPipeAssemblies#1,#2and#3(SeeFigure1)prior
to cementing. The preferred orientatio n of Vent Pipe Assembly #1
(CondensateU-As sembly) is shown in Figure 16. However this
assembly may be rotated to a different orienta tion as needed for the
specicinstallationrequir ements.Notetherotationalo rientationof
each part by marking a line several inches long ac ross the joints.The
long tube of Vent Pipe Assembly #2 should be approximatel y vertical.
If it is found that either of the two pieces of pipe i n Vent Pipe Assembly
#2aretoo longforpro pert-up,then removeaslit tlematerialas
possibletoimprovethet-up.Keepinmindthatthepipeswillinsert
slightly further into the elbows when ce ment is applied as it acts
as a lubricating agent. The vertical di stance from the bottom of the
CondensateU-Assemblytotheoorthatsuppor tsthewaterheater
shouldbeapproximately0.25”(0.64cm),seeFigure 16. Disassemble
the parts and cement back together using th e alignment marks. After
the cement dries, attach the assembly t o the blower and the water
heater exhaust using the supplied rubber boots an d hose clamps.
A condensate trap is incorporated in the bottom of this vent pipe assembly.
See the CONDENSATE section of this manual for further details.
ventInG