International comfort products N9MP1 Installation Instructions Manual page 19

Figure 12 Downflow Left Side Vent and Trap
Yellow or black Plastic Cap
Coupling & Clamps
(Optional)
Vent Drain
& Clamps
Either: The PVC
Drain Tee or a field
supplied 2² ² ² ² PVC Tee
Tee Trap White PVC
(loose parts bag)
Elbow Tube
Black Rubber
1
(Loose Parts Bag)
Single Pressure Switch Detail
Drain Tube Corrugated
Cut at straight section
Leave room for clamp
Downflow Left Side Vent and Trap
Remove the inducer mounting screws, rotate the inducer 180°
and retighten the inducer screws to 20² pounds torque.
Disconnect the hoses from the Trap assembly, and remove Trap
and Trap mounting bracket from the blower compartment. Using
cover plate and gasket provided in the loose parts bag, cover the
hole from the burner compartment to the blower compartment and
secure with screws.
Move the caps to the top of the Trap and mount the Trap externally
to the left side of the unit using the 2 screws provided.
5
Cut the / ² ID corrugated hose as shown above and fasten the 90°
8
bend end to the Trap and fasten the straight end to the transition
drain. Secure both connections with clamps.
1
Reconnect the / ² ID drain hose from the vent drain to the Trap
2
and secure with a clamp.. In some cases, additional length will be
required for this hose. Use the Black plastic
pling and a suitable section of
Secure all connections with clamps
3
Connect the / ² ID relief tube from the small port on the Trap to
16
the top port of the transition as shown in the picture. In some
440 01 1021 01
/ ² ² ² ² ID & Clamps
2
WARNING
Move Caps
to top of
trap
5
/ ² ² ² ² ID
8
Cut Here
(See Figure 12)
1
/ ² OD barbed cou-
2
1
/ ² ID hose to make the connection.
2
2² ² ² ² PVC Coupling
Drain Tube
Black Rubber
1
/ ² ² ² ² ID & Clamps
2
Dual Pressure Switch
1
Barbed Coupling / ² ² ² ² OD
2
(Loose Parts Bag)
cases, additional hose length will be needed. Use the clear plastic
3
/ ² OD flexible tubing connector and a suitable length of extra
16
3
/ ² ID hose to make this connection.
16
Install the vent pipe grommet into the casing
Cut an appropriate length of 2² PVC pipe long , enough to exit the
cabinet and connect the vent drain to either:
· A standard field supplied 2² PVC tee (N9MP1), or
· A 2² PVC coupling fastened onto the Drain Tee (*9MPD
models)
Install Tee Trap into bottom section of Tee.
Connect the Tee trap and the main drain line exiting the casing as
shown in Figure 18.
Note: It is recommended that all PVC piping and fitting connec-
tions be fit up and inspected before final cementing. Both the ex-
ternal Trap and the external Tee Trap must be primed before
operation. Verify all condensate drain connections are securely
clamped. A coupling and clamps (in loose part bag) may be
installed as shown for future servicing of the vent system.
SIDE VIEW
Rotate downward
5° ° ° ° to 10° ° ° °
NOTE: Built--in channel will
be angled 5° to 10° also.
Relief Tube
3
Black Rubber / ² ² ² ² ID
16
On Some Models
ONLY
INLET
Flexible Tubing Connector,
3
/ ² ² ² ² OD (loose parts bag)
16
Relief Tube Extension
Black Rubber,
3
/ ² ² ² ² ID Cut to fit
16
(loose parts bag)
Trap Connection
"Clamp ears"
Pointed OUT
Preassemble &
insert into furnace
25--24--83
19