J‐S180F/J‐S199F 9
UnitClearances
toCombusbles
inches(mm)
toNon‐
Combusbles
inches(mm)
TopofHeater 6*(152) 2*(51)
BackofHeater 0(zero) 0(zero)
FrontofHeater 6(152) 6(152)
SidesofHeater 2(51) 1/2(13)
Ground/Boom 12(305) 12(305)
Vent 0(zero) 0(zero)
*0inchesfromventcomponentsandcondensate
drainline.
Theclearanceforservicingis24inchesinfrontofthe
waterheater.
Forclosetinstallaon,clearanceis6inches(152mm
fromthefront.
MaximumVentLength
1. Determinethenumberof90degreeelbowsin
theventsystem.(Two45degreeelbowscountas
one90degreeelbow.)
2. Refertothetabletofindthemaximumvent
lengthbasedonthenumberofelbows.
3. AdjustswitchNo.1intheSW1DIPswitchif
requiredbytheapplicablenote.
1 Ifthelengthisgreaterthan21(6.4m)then
moveswitchNo.1(SW1)toOFF.
2 Ifthelengthisgreaterthan15(4.6m)then
moveswitchNo.1(SW1)toOFF.
3 Ifthelengthisgreaterthan9(2.7m)thenmove
switchNo.1(SW1)toOF
F.
4MoveswitchNo.1(SW1)toOFF.
Example: Ifyouhaveoneelbowthenyourmaximum
ventlengthis35feet(10.7m).Ifyour
actuallengthisgreaterthan15(4.6m)
thenmoveswitchno.1(SW1)toOFF.
Numberof
90°Elbows
Maxim
umventlength
0 41(12.5m)1
1 35(10.7m)2
2 29(8.8m)3
3 23(7.0m)4
4 17(5.2m)4
5 11(3.4m)4
6 5(1.5m)4
Ifyouhavealongerventlength(seeabove),switch
No.1isrequiredtobeintheOFFposion.This
ensuresthewaterheaterwillrunproperly.Blocked
fluediagnosccodesandshutdowns mayresultif
switchNo.1isnotinthecorrectposion.Onthe
J‐SN199FandJ‐SP199F,themaximumwaterflow
capacitywillbereducedbyabout10%whenswitch
no.1isOFF.
NOTICE
to side
to front
to top
to floor/ground