Harman PF100 - Assembly - Blower; Blower Assembly

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3-90-08101R23_06/13
Assembly
Blower Assembly
Installtheblowermountingbracketsontheblowerasshown
inFig.11.
1. Install(4)TekscrewsoneachsidewhereshowninFig.
11.Startwiththetwocenterscrews.
NOTE:Therearetwosmallholesinthedischargeendofthe
blowerthatmatchthetwocenterholesonthesmallangle
oftheblowerbracket.Thetwo(2)outerholesaredrilledby
theTekscrews.
2. Mountblowerwithbracketsinstalledonthefurnaceas
showninFig.12.Eachsidewillrequire6Tekscrews.
NOTE: Thefurnacebloweropeningismadelargeenoughfor
theuseofanyofthe3offeredblowers.Theblowermounting
bracketswillteitherblower.Theinnerholepatternisfor
the1000CFMblowerandtheouterpatternisforthe1450
or1638CFMblowers.
Regardless of the supply air duct size installed, the
DistributionBlowerMotorMUSTbecheckedforrunning
Amperage. Check the motor name plate for the full
loadAMPS.Iftheamperageisrunninghigherthanthat
listed,asupplyairrestrictingdampermayberequired
toincreasethesupplyplenumpositivestaticpressure.
Mounting Screws
Fig. 11
Fig. 12
Fig. 13
Fig. 14
NOTE: These Blower Motors are not designed to be
operated without any positive static back pressure.
OPERATION WITHOUT SUPPLY DUCTWORK OR IN
FREE AIR WILL CAUSE MOTOR OVERLOAD AND
PREMATURE FAILURE.
3. Mountthelterboxonthefurnacewith(6)#10x3/4Tek
screws,3on eachside. Visuallylocate theseholes so
youarefamiliarwiththeirlocationonthelterboxand
thefurnace.Accesstothemountingholescanbegained
through the blower access panel cover and the lter
opening.SeeFig.14.
Note: Twopiecesof2x4stackedlayingatontheoor12
inches from the blower opening will support the lter box
duringinstallation
CAUTION
!