[] 1
Mark a level line on the supplyair plenum (Fig. 6).
[]
6
Drillthe four holesmarked on the plenum with a 1/8"
drillbit. Holes mustbe locatedat end of slot (Fig. 7).
4" Min.
J_
Level Line
1
Furnace
Sup,ply
Air
i Plenum
[] 2
Hold case assembly againstthe plenum with bottom
edge ofrear openingon level line. Mark fourcomers of rectangu-
laropeningand four screwlocationson plenum,Screwholesmust
be locatedat end of slot (Fig, 7).
Locstions
Level
Line
I
Furnace
_l, SupplyAir
Plenum
1
[] 3
Connect corner marksto outlinerectangularopening.
Center punchfour screw locations(Fig. 8).
[] 4
Drill or punch a large hole in one corner of rectangle.
This willallowyou to insertthe tin snipsor metalsaw.
I
CAUTION: Be sure not to drill or cut intoair conditioning
coil or tubing.
I
[] 7
Attach the humidifiercase assembly on the plenum
using4 #8 screwsprovided.
Drill4
1/8" Holes
Cut Along--
This Line
_tc o u[
This Area
•
•
Furnace
Level
_ne
j Plenum
[]
8
Hold collarand flexible tube assemblyagainstcold air
plenum at desired location.
[] 9
Mark roundopening inside collar and five mounting
holes(Fig. 9).
[] 10
Centerpunch five screw locations. D rillor puncha large
holewithinthe roundopening.Cut out the area insidethe round
opening.Drillthe five holes (Fig. 9).
Cold Air
Plenum
Hot Air
Plenum
Furnace
[]
5
Cut out thearea inside the rectangle.Ifany ofthe edges
are rough,file them smooth(Fig. 8).
5
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