ICP N9MP1 Service Manual page 41

Single Stage Multi Position Furnace
NOTE: For left side venting, 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.
This configuration allows left side venting from the furnace. If right
side venting is required, the combustion blower must be relocated
on the plastic transition box. Remove the four(4) screws that secure
the blower to the transition. Rotate the blower 180° and secure with
the four(4) screws. Use caution to not over tighten the screws to pre-
vent stripping out of the plastic mounting holes.
NOTE: For right side venting, 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. (See Figure 46)
Plug the upper drain stub on the vent fitting with the yellow plastic
Figure 47
Upflow Installations (Single Pipe & Direct Vent N9MP1 & N9MP2- -A2 Models)
Supply Air
DRAIN SIDE VIEW
Rotate downward
5° ° ° ° to 10° ° ° °
o o
For left side or right side mounted condensate trap, the pres-
sure tap on the condensate trap MUST be connected to the unused
pressure tap located on the upper right hand corner of the plastic
transition box. Remove the plastic caps from the pressure taps on
the condensate trap and the plastic transition and connect with the
5
/ ² OD rubber hose. (See Figure 46 and Figure 47)
16
5
Connect the / ² OD rubber hose with the 90° bend to the lower
8
RIGHT Side Venting
Some Models
have one
pressure switch
cap.
For left side mounted condensate trap, connect the
hose with the 90° bend to the large drain stub on the condensate
trap and secure with a
Route the hose to the drain stub on the bottom of the plastic transi-
tion box. Cut off excess hose and discard. Connect the hose to the
drain stub on the transition and secure with a
For right side mounted condensate trap, connect the
hose with the 90° bend to the bottom of the plastic transition box and
3
secure with a / ² clamp.
4
Route the hose to the large drain stub on the condensate pump. Cut
off excess hose and discard. Connect the hose to the drain stub on
the condensate trap and secure with a
NOTE: TRAP MUST BE PRIMED BEFORE OPERATION
Vent
Drain
Return
Air
25--24--00
drain 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 trap 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.
39
Service Manual
3
/ ² clamp.
4
3
/ ² clamp.
4
3
/ ² clamp.
4
Trap Connection
"Clamp ears"
Pointed OUT
Preassemble
and insert
into furnace
5
/ ² clamp.
8
5
/ ² clamp.
8
3
/ ² OD rubber
4
3
/ ² OD rubber
4
440 08 2001 02