Horizontal Left (Supply-Air Discharge) Applications. Bryant 345MAV, Series F

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

3. Connect collector box pressure tube (green label) to pressure switch connection labeled "collector box."

4. Use remaining smaller diameter tube (factory-supplied in loose parts bag) to extend collector box pressure tube (pink label) which was previously connected to pressure switch.

5. Route this extended tube (pink label) to condensate trap relief port connection.

6. Determine appropriate length, cut, and connect tube.

7. Clamp tube to relief port connection.

E.

Condensate Trap Freeze Protection

Refer to Condensate Drain Protection section for recommendations and procedures.

IV.

HORIZONTAL LEFT (SUPPLY-AIR DISCHARGE)

APPLICATIONS

A horizontal left furnace application is where furnace blower is located to the right of combustion and controls section of furnace, and conditioned air is discharged to the left.

NOTE: The auxiliary junction box (J-Box) MUST be relocated to opposite side of furnace casing. (See Fig. 10.) See Electrical

Connection section for J-Box relocation.

A.

Condensate Trap Location

The condensate trap must be removed from the factory-installed blower shelf location and relocated in selected application location as shown in Fig. 2 or 10.

To relocate condensate trap from the blower shelf to desired location, perform the following:

PLUG

CAP

AUXILIARY " J " BOX

1. Remove 3 tubes connected to condensate trap.

2. Remove trap from blower shelf by gently pushing tabs inward and rotating trap.

3. Install casing hole filler cap (factory-supplied in loose parts bag) into blower shelf hole where trap was removed.

WARNING: 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.

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

5. Fill unused condensate trap casing holes with plastic filler caps (factory-supplied in loose parts bag).

B.

Condensate Trap Tubing

NOTE: See Fig. 10 or tube routing label on main furnace door to check for proper connections.

1. Collector Box Drain Tube a. Install drain tube coupling (factory-supplied in loose parts bag) into collector box drain tube (blue label) which was previously connected to condensate trap.

b. Connect large diameter drain tube and clamp (factorysupplied in loose parts bag) to drain tube coupling, extending collector box drain tube.

c. Route extended tube (blue label) to condensate trap and cut to appropriate length.

d. Clamp tube to prevent any condensate leakage.

COLLECTOR BOX

DRAIN TUBE

(BLUE AND WHITE STRIPED)

CONDENSATE

TRAP

COLLECTOR BOX

TUBE (GREEN)

COLLECTOR

BOX EXTENSION

DRAIN TUBE

COLLECTOR BOX

EXTENSION TUBE

DRAIN TUBE COUPLING

COLLECTOR BOX TUBE (PINK)

RELOCATE TUBE BETWEEN BLOWER SHELF AND INDUCER HOUSING FOR

040, 060, AND 080 HEATING INPUT FURNACES

INDUCER HOUSING

DRAIN TUBE (VIOLET)

COLLECTOR BOX

DRAIN TUBE (BLUE)

Fig. 10—Horizontal Left Tube Configuration

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A00215

COMBUSTION–AIR

INTAKE

A 3-IN. MINIMUM CLEARANCE

TO COMBUSTION-AIR INTAKE

IS REQUIRED.

VENT

30-IN. MIN

WORK AREA

A 12-IN. MIN HORIZONTAL PIPE

SECTION IS RECOMMENDED WITH

SHORT (5 TO 8 FT) VENT SYSTEMS

TO REDUCE EXCESSIVE

CONDENSATE DROPLETS FROM

EXITING THE VENT PIPE.

5 3 ⁄ 4

″

MANUAL

SHUTOFF

GAS VALVE

ACCESS OPENING

FOR TRAP

SEDIMENT

TRAP

DRAIN

CONDENSATE

TRAP

NOTE: LOCAL CODES MAY REQUIRE A DRAIN PAN UNDER THE

FURNACE AND CONDENSATE TRAP WHEN A CONDENSING

FURNACE IS INSTALLED ABOVE FINISHED CEILINGS.

C.

A96184

2. Inducer Housing Drain Tube

Fig. 11—Attic Location and Working Platform

Modify tube as described below.

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

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

b. Use inducer housing drain extension tube (violet label and factory-supplied in loose parts bag) to connect

LOWER inducer housing drain connection to the condensate trap.

2. Use smaller diameter tube (factory-supplied in loose parts bag) to extend tube disconnected in item 1.

3. Route extended tube: c. Determine appropriate length, cut, and connect tube.

d. Clamp tube to prevent any condensate leakage.

a. Behind inducer housing.

b. Between blower shelf and inducer housing.

c. Behind inducer motor bracket.

d. Between inducer motor and pressure switch.

3. Relief Port Tube a. Use smaller diameter tube (factory-supplied in loose parts bag) to extend collector box tube (green label) which was previously connected to the condensate trap.

4. Determine appropriate length, cut, and reconnect tube to pressure switch connection labeled COLLECTOR BOX.

b. Route extended collector box pressure tube to relief port connection on the condensate trap.

c. Determine appropriate length, cut, and connect tube.

d. Clamp tube to prevent any condensate leakage.

E.

Condensate Trap Freeze Protection

Refer to Condensate Drain Protection section for recommendations and procedures.

Condensate Trap Field Drain Attachment

Refer to Condensate Drain section for recommendations and procedures.

F.

Construct a Working Platform

Construct working platform where all required furnace clearances are met. (See Fig. 3 and 11.)

D.

Pressure Switch Tubing

The LOWER collector box pressure tube (pink label) is factory connected to the pressure switch for use when furnace is installed in UPFLOW applications. This tube MUST be disconnected, extended, rerouted, and then reconnected to the pressure switch in

HORIZONTAL LEFT applications.

NOTE: See Fig. 10 or tube routing label on main furnace door to check for proper connections.

CAUTION: The condensate trap MUST be installed below furnace. See Fig. 5 for dimensions. The drain connection to condensate trap must also be properly sloped to an open drain. Failure to follow this caution will result in intermittent unit operation.

NOTE:

Table 6.)

Vent pipe length is restricted to a minimum of 5 ft. (See

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