Routing Options; Exhauster Rotation Instructions & Pressure Switch Mounting - Napoleon 9500-B Series Operating Instructions Manual

11.0

ROUTING OPTIONS

This furnace can be installed in any of the four positions. Figures 16 to 20 on the following pages shows the
four installation positions. The installer must consider the following services: gas pipe, electrical power, drain
trap, intake and exhaust vents. Also consider the air conditioning connections and drain, access to
fi lter(s) and access to furnace and a/c for repair. Drains and traps of furnaces installed in spaces
subjected to freezing temperature must also be protected against freezing.
The combustion air inlet fi tting is a 2" PVC Socket to Pipe Thread adapter. Choose the intake
location and remove the appropriate plastic cap. Install the adapter to the exterior panel using the
gasket (on the outside of the panel and the locknut on the inside of the panel). Failure to apply
gasket on cabinet exterior voids the warranty.
11.1 EXHAUSTER ROTATION INSTRUCTIONS & PRESSURE SWITCH MOUNTING
1. Disconnect exhauster wire connection.
2. Remove the 3 exhauster screws.
3. Remove pressure switch assembly (switches) and front manifold cover pressure sensing hose.
4. Remove exhauster.
5. Reverse the bands on the rubber drain coupling so the screws are accessible if necessary. (Do not
reverse the drain coupling.) Confi rm that directional arrow on drain coupling points away from exhauster.
6. Remove the appropriate plastic cap on the side panel. Install cap on vent opening not in use.
7. Reinstall the exhauster and the pressure switch assembly in the correct orientation with the (3) exhauster
screws removed in step 2. DO NOT USE POWER TOOL. Reinstall the pressure switches so that they
are above the heat exchanger drain, to eliminate the chance of condensate draining into the pressure
switch sensing hose causing erratic furnace operation. See Figures 16-20 for reference.
8. Rotate the drain coupling so the drain holes are angled downward 15° and tighten coupling band to
exhauster.
9. Complete the venting as installation requires.
Always secure or support the vent and intake to the fl oor joists or rafters to avoid sagging and possible fatigue
of venting materials. This ensures proper drainage and prevents spilling the products of combustion into the
building.
The blower compartment should be completely isolated from the burner compartment, and in tight rooms with
other combustion devices, be completely isolated from the room. Ensure that the combustion door gasket is in
good condition.
IMPORTANT:
KEEP PRESSURE SWITCH HOSES ABOVE HEAT EXCHANGER DRAIN, AND CUT TO
APPROPRIATE LENGTH TO PREVENT ANY SAGS OR TRAPS FORMING IN THE HOSES.
TABLE 5 - EXHAUSTER ORIENTATION
ORIENTATION
FURNACE FLUE
Down Left
Down Right
Up Left
Up Right
Up Vertical
Horz.Left Vertical
Horz. Left Vertical
Horz.Right Vertical
Horz.Right Right
ROTATE
EXHAUSTER
Y
Y
SEE FIGURES
Y
16 - 20 FOR
Y
RECOMMENDED
N
MOUNTING
Y
N
Y
N
H12.5.2A
H16.0.1A
H16.1.2A
NOTE
DO NOT
USE POWER
TOOL
29
IOM
W415-1239 / A / 03.21.14