18
Never use this water heater unless it is completely full of water. To prevent
damagetothetank,thetankmustbelledwithwater.Watermustowfrom
thehotwaterfaucetbeforeturning“ON”gastothewaterheater.
Tollthewaterheaterwithwater:
1. Close the water heater drain valve by turning handle to the right
(clockwise).Thedrainvalveisonthelowerfrontofwaterheater.
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. Toinsurecompletellingofthetank,allowairtoexitbyopeningnearest
hotwaterfaucet.Allowwatertorununtilaconstantowisobtained.
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 asseMBlY
There are three parts of the vent pipe assembly that connect the water
heaterexhaust(locatedonlowerbacksideofwaterheater)toinletofthe
blowerassembly(mountedontopofwaterheater)asshowninFigure
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.
AssembleVentPipeAssemblies#1,#2and#3(SeeFigure1)prior
to cementing. The preferred orientation of Vent Pipe Assembly #1
(Condensate U-Assemb ly)issho wninFig ure16.H oweverthis
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
specicinstallationrequirements.Notetherotationalorientationof
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
PipeAssem bly#2aret oolongforp ropert-up, thenremoveas
littlemate rialaspossib letoimprovethe t-up.Keepinmi ndthat
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
fromtheb ottomofthe CondensateU -Assemblyto theoorth at
supportsthewaterheatershouldbeapproximately0.25”(0.64cm),
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