International comfort products C9MPX Installation Instructions Manual page 27

Figure 19
Horizontal Right−Side Vent
Single Pressure Switch Detail
Relief Tube Black Rub­
3
ber
Flexible Tubing Connector
, (4.8mm) OD (Loose
3
/
16
Parts Bag)
Relief Tube Extension
3
Black Rubber
Cut to Fit (Loose Parts Bag)
Horizontal Right Side Vent
Disconnect drain tee if installed
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.
Remove knockout from the side of the furnace casing where drain
tube will exit.
Mount the trap externally to the bottom side of the unit using the
two screws provided in the location shown.
Cut the corrugated tube as shown in the illustration above.
Connect the corrugated hose from the transition to the trap.
Secure connections with clamps.
1
Connect the black / " (12.7mm) ID drain tube from the Vent Drain
2
to the trap. If an extension is required, use the
barbed coupling and the black
loose parts bag. Cut tube to length. Secure connections with
clamps.
3
Connect the / " (4.8mm) ID relief tube to the middle port on the
16
trap. If an extension is required, use the clear
440 01 1051 02
AIR FLOW
, (4.8mm) ID
/
16
, (4.8mm) ID
/
16
Dual Pressure Switch
, ID & Clamps
5
Drain Tube Corrugated, /
8
Cut at straight section
Cut Here
Leave room for clamp
Representative drawing only, some models may vary in appearance.
(See Figure 19)
1
/ " (12.7mm) OD
2
1
/ " (12.7mm) ID drain tube in the
2
3
/ " (4.8mm) OD
16
Specifications are subject to change without notice.
Plastic Cap
Yellow or black
Vent Drain
& Clamps
Level or Sloped
towards Tee
Drain Tube Black
Rubber
, (12.7mm) ID &
1
/
2
Clamps
splice connector and the black
loose parts bag. Cut tube to length.
Cut an appropriate length of 2" (50.8mm) PVC pipe, fittings and
extension pipe long enough to exit the cabinet and connect the
vent drain to either:
• A standard field supplied 2" (50.8mm) PVC tee, or
A 2" (50.8mm) PVC coupling fastened onto the drain tee.
•
Install tee trap into bottom section of tee.
Important: The pipe to the tee trap must be level or sloping towards
the tee trap.
Connect the tee trap and the main drain line exiting the casing as
shown in Figure 20.
Note: It is recommended that all PVC piping and fitting
connections be fit up and inspected before final cementing. Both
the external 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.
Coupling & Clamps
(Optional)
Field
Supplied Tee
Tee Trap
White PVC
(loose parts bag)
Elbow Tube
Black Rubber
, (12.7mm) ID & Clamps
1
/
2
(Loose Parts Bag)
On Some Models
ONLY
INLET
Alternate
Orientation
, (12.7mm)
1
Barbed Coupling /
2
OD (Loose Parts Bag)
25−24−84c
3
/ " (4.8mm) ID relief tube in the
16
27