Sears N9MP1, N9MP2 manual HorizontalLeft Installations, Dual Certified *9MPD-A4, Models, 25-24-12

HorizontalLeftInstallations	(Dual Certified *9MPD-A4	Models)
NOTE: TRAP MUST BE PRIMED BEFORE OPERATION		Horizontal Trap Connection
		"Clamp ears"
Model shown with two		Pointed OUT
pressure	switches
ipe Combustion Air
Pipe, (optional)
5/16" OD
Rubber		Preassembleand

insert intofurnace

				Blower
Supply
Air					Return Air
	Vent Pipe
PVC Vent	Grommet
Extension Pipe				Transition
				3/4" Hose & Clamps	25-24-12
Vent Fitting
& Clamps Yellow		Rubber Couplings
Plastic		& Clamps		90° Elbow
	& Clamps	Plastic Cap	DRAIN	SIDE VIEW
	11" Section
& Clamps	2" PVCPipe		_tate	downward
	Condensate
	Trap & Gasket
	(Field Supplied)	DrainLine:	_	Single Pressure Switch
				Connections	on
				All models	except 125
			angled5° to 10° also.

Horizontal Left Installations - (Dual Certified *9MPD) (See Figure 10)

Note: DO NOT make hose connections until the hose routing and

lengths have been determined. Remove the condensate trap and drain hoses from the furnace and secure the drain hoses to the

drain stubs on the trap with the hose clamps (position the clamps as shown in Figure 10). Install the condensate trap/hose assem-

blyto the furnace casing. Hook one side ofthe"clamp ears" on the drain stub through the hole in the casing and push the condensate trap into position. Secure with the two screws. Reconnect the drain hoses to the stubs on the vent fitting and the plastic transi- tion and secure with the clamps.

Relocate the plastic cap and clamp from the vertical transition drain stub to the horizontal transition drain stub on the conden-

sate drain trap. Secure the clamps tightly to prevent condensate leakage. Do not change the cap and clamp on the vent drain stub.

Mount the condensate drain trap in a vertical position to the left side of the furnace using the two screws and gasket that are pro-

vided. Note: The condensate trap will be located under the fur- nace in a vertical position when the furnace is placed horizontally on the left side. If needed, remove the hole plugs from the furnace side panel and relocate to the open set of holes in the opposite side panel.

NOTE: All gaskets and seals must be in place for sealed combus- tion applications.

Remove the 90 ° elbow and vent fitting from the combustion blow- er by loosening the clamps on the vent fitting. Connect the 90 ° el-

bow to the combustion blower using the rubber coupling and cla raps. Note for proper alignment of the vent pipe through the fur- nace, the 90 ° elbow must be installed with the "HORIZONTAL" lettering on the 90 ° elbow facing out. Connect a 11" section of 2" PVC pipe (field supplied) to the 90 ° elbow using the rubber cou- pling and clammps. The PVC pipe will extend through the top pa n- el a bout 11/2". Connect the vent fitting to the end of the 11" section of PVC pipe using the clamp.

NOTE: The 90 ° elbow is approved for use inside the furnace ONLY.

NOTE: The vent fitting MUST be installed with the airflow marking arrow pointed toward the vent pipe, with the drain stub at a 5 ° to 10 ° downward slope.

Plug the upper drain stub on the vent fitting with the yellow plastic cap.

Connect the PVC vent extension pipe to the vent fitting. This pipe

has a built-in channel to assist vent condensate disposal. Align the arrow on the PVC pipe with the airflow marking arrow on the vent fitting. See label on the PVC pipe for proper installation. This pipe may only be shortened if an elbow is used to connect the

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