18
Never use this water heater unless it is completely full of water. To prevent
damagetothetank,thetankmustbelledwithwater.Watermustowfrom
thehotwaterfaucetbeforeturning“ON”gastothewaterheater.
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)toinletofthe
blowerassembly(mountedontopofwaterheater)asshowninFigure
1. These parts will need to be assembled according to the instructions
in the VENT PIPE PREPARATION section of this manual. These PVC
parts should be assembled with ASTM D-2564 grade cement.
AssembleVentPipeAssemblies#1,#2and#3(SeeFigure1)prior
to cementing. The preferred orientation of Vent Pipe Assembly #1
(Condensate U-Assemb ly)issho wninFig ure16.H oweverthis
asse mbl y m ay b e ro ta ted to a di ffe re nt o ri ent at ion as n ee ded fo r th e
specicinstallationrequirements.Notetherotationalorientationof
each pa rt by ma rk in g a l in e s ev er al i nc he s l on g a cr os s th e j oi nt s.T he
long tube of Ven t Pip e As sembly #2 should be appro ximately
vertical. If it is found that either of the two pieces of pipe in Ven t
PipeAssem bly#2aret oolongforp ropert-up, thenremoveas
littlemate rialaspossib letoimprovethe t-up.Keepinmi ndthat
the pipes w ill inser t slightly further into the e lbows when cement
is applied as it act s as a lu bricating agent. T he vertic al dista nce
fromtheb ottomofthe CondensateU -Assemblyto theoorth at
supportsthewaterheatershouldbeapproximately0.25”(0.64cm),
see Figure 16 . Disassem ble the par ts and ce ment back t ogether
using the a lignment marks . Af ter t he ce ment dries, attach the
assembly to the blower and the water heater ex haust us ing the
supplied rubber boots and 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