Operation & Installation Manual 09/2002

PLUG

CAP

COLLECTOR BOX

DRAIN TUBE (BLUE)

COLLECTOR BOX

TUBE (PINK)

COLLECTOR BOX

TUBE (GREEN)

COLLECTOR BOX

EXTENSION TUBE

COLLECTOR BOX

DRAIN TUBE (BLUE

& WHITE STRIPED)

COLLECTOR BOX

EXTENSION TUBE

INDUCER HOUSING

DRAIN TUBE

(VIOLET)

CONDENSATE

TRAP

COLLECTOR BOX

EXTENSION

DRAIN TUBE

DRAIN TUBE

COUPLING

Fig. 9—Downflow Tube Configuration

(Right-Hand Trap Installation)

A01024

Casing hole filler cap must be installed in blower shelf hole when condensate trap is relocated. Failure to follow this warning could result in electrical shock, fire, personal injury or death.

5. Install condensate trap into desired casing hole by inserting tube connection stubs through casing hole and rotating until tabs snap into locking position.

CONDENSATE TRAP TUBING

NOTE: See Fig. 8 or 9 or tube routing label on main furnace door to check for proper connections.

Relocate tubes as described below.

1. Collector Box Drain Tube a. Remove factory-installed plug from LOWER collector box drain tube (blue and white striped label).

b. Install removed clamp and plug into UPPER collector box drain tube (blue label) which was connected to condensate trap.

c. Connect LOWER collector box drain connection to condensate trap.

(1.) Condensate Trap Located on Left Side of Casing

Connect LOWER collector box drain tube (blue and white striped label) to condensate trap. Tube does not need to be cut.

Clamp tube to prevent any condensate leakage.

(2.) Condensate Trap Located on Right Side of Casing

Install drain tube coupling (factory-supplied in loose parts bag) into collector box drain tube (blue and white striped label) which was previously plugged.

Connect larger diameter drain tube (factory-supplied

9

in loose parts bag) to drain tube coupling, extending collector box drain tube for connection to condensate trap.

Route extended collector box drain tube directly from collector box drain to condensate trap as shown in Fig.

9.

Determine appropriate length and cut.

Connect to condensate trap.

Clamp tube to prevent any condensate leakage.

2. Inducer Housing Drain Tube a. Remove factory-installed cap and clamp from LOWER inducer housing drain connection.

b. Remove and discard UPPER (molded) inducer housing drain tube which was previously connected to condensate trap.

c. Install cap and clamp on UPPER inducer housing drain connection where molded drain tube was removed.

d. Use inducer housing drain tube (violet label and factorysupplied in loose parts bag) to connect LOWER inducer housing drain connection to the condensate trap.

e. Connect inducer housing drain connection to condensate trap.

(1.) Condensate Trap Located on Left Side of Casing

Determine appropriate length and cut.

Connect tube to condensate trap.

Clamp tube to prevent any condensate leakage.

(2.) Condensate Trap Located on Right Side of Casing

Route inducer housing drain tube (violet label) directly from inducer housing to condensate trap as shown in

Fig. 9.

Determine appropriate length and cut.

Connect tube to condensate trap.

Clamp tube to prevent any condensate leakage.

3. Relief Port Tube

Refer to Pressure Switch Tubing section for connection procedure.

CONDENSATE TRAP FIELD DRAIN ATTACHMENT

Refer to Condensate Drain section for recommendations and procedures.

PRESSURE SWITCH TUBING

One collector box pressure tube (pink label) is factory connected to the High Pressure Switch for use when furnace is installed in

upflow applications. This tube MUST be disconnected and used for the condensate trap relief port tube. The other collector box pressure tube (green label) which was factory connected to the condensate trap relief port connection MUST be connected to the

High Pressure Switch in DOWNFLOW or HORIZONTAL

RIGHT applications

NOTE: See Fig. 8 or 9 or tube routing label on main furnace door to check for proper connections.

1. Disconnect collector box pressure tube (pink label) attached to

High Pressure Switch.

2. Extend collector box pressure tube (green label) which was previously connected to condensate trap relief port connection by splicing to small diameter tube (factory-supplied in loose parts bag).

3. Connect collector box pressure tube (green label) to High

Pressure Switch connection labeled COLLECTOR BOX.

4. Extend collector box pressure tube (pink label) which was previously connected to High Pressure Switch by splicing to