Sears 303.147012 manual Mark a level line on the supplyair plenum Fig, Min, Furnace, Level Line

[] 1 Mark a level line on the supplyair plenum (Fig. 6).

Level Line

1

4" Min.

J_		Sup,ply
		Air
	Furnace	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

_l, SupplyAir

Plenum

I Furnace1

[] 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	I
coil or tubing.

[] 5 Cut out thearea insidethe rectangle.Ifany ofthe edges are rough,file them smooth(Fig. 8).

[] 6 Drillthe four holesmarked on the plenum with a 1/8" drillbit. Holes mustbe locatedat end of slot (Fig. 7).

[] 7 Attach the humidifiercase assembly on the plenum using4 #8 screwsprovided.

Drill4

1/8" Holes

Cut Along--	_tcou[_ne
This Line	This Area
	Level
	••
	Furnace
	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 Centerpunchfive screw locations.Drillor puncha large holewithinthe roundopening.Cut out the area insidethe round opening.Drillthe five holes (Fig. 9).

Hot Air

Plenum

Cold Air

Plenum

Furnace

5