ICP N9MP1 Service Manual page 31

Single Stage Multi Position Furnace
Figure 38 Horizontal Left Installations (Single Pipe & Direct Vent N9MP1 & N9MP2(A1) Models)
Plastic
Caps
Supply
Air
Inlet
Combustion
Air Pipe,
N9MP2 ONLY
Combustion Blower
(Rotate 180° ° ° ° for Right Side)
Horizontal Left Installations - (Single Pipe & Direct Vent N9MP1 & N9MP2 Models)
Relocate the plastic caps and clamps on the condensate drain trap
from the vertical drain stubs to the horizontal drain stubs. Secure the
clamps tightly to prevent condensate leakage.
Mount the condensate drain trap in a vertical position to the left side
of the furnace using the two screws and gasket that are provided.
Note: The condensate trap will be located under the furnace in a ver-
tical position when the furnace is placed horizontally on the left side.
If needed, remove the hole plugs from the furnace side panel and
relocated to the open set of holes in the opposite side panel. Drill two
7
/ ² diameter holes in the casing using the condensate trap as the
64
template.
Relocate the combustion blower on the plastic transition box. Re-
move the four(4) screws that secure the blower to the transition box.
Rotate the blower 180° so the blower snout is pointing up and se-
cure with the four(4) screws. Use caution to not over tighten the
screws to prevent stripping out of the plastic mounting holes.
Ensure that the vent fitting and the 90° elbow is securely attached to
the combustion blower using the rubber coupling and clamps.
Pressure Switch,
Rubber
Blower
Plug
Transition
Box
3
/ ² ² ² ² Hose
4
& Clamps
Condensate
Trap & Gasket
Drain Line
Vent Pipe
Vent Pipe
Grommet
Pressure Switch
Hose, Transition
Vent Fitting
& Clamps
Combustion Blower
Mounting Screws (4)
Plastic
Caps
NOTE: The vent fitting MUST be installed with the airflow marking
arrow pointed toward the vent pipe, with the drain stub at a 20° to 30°
downward slope.
Plug the left drain stub on the vent fitting with the rubber plug. Use a
blunt pointed screwdriver to push the plug into the stub.
3
Connect the / ² OD rubber hose with the 90° bend to the drain stub
4
on the bottom of the plastic transition box and secure with a
clamp.
Route the hose to the large drain stub on the condensate trap. Cut
off excess hose and discard. Connect the hose to the drain stub on
the trap and secure with a
5
Connect the / ² OD rubber hose with the 90° bend to the right drain
8
stub on the vent fitting and secure with a
Route the hose to the smaller drain stub on the condensate trap. Cut
off excess hose and discard. Connect the hose to the drain stub on
the vent fitting and secure with a
NOTE: Ensure hoses maintain a downward slope to the conden-
sate trap with no kinking or binding for proper condensate drainage.
29
Service Manual
Pressure Switch,
Transition
Return
Air
Pressure Switch
Hose, Blower
5
/ ² ² ² ² Hose &
8
Clamps
dwg 25- -23- -58
(See Figure 38)
3
/ ² clamp.
4
5
/ ² clamp.
8
5
/ ² clamp.
8
440 08 2001 02
3
/ ²
4