Bryant 345MAV Horizontal Right SUPPLY-AIR Discharge Applications, Construct a Working Platform

C.Condensate Trap Field Drain Attachment

Refer to Condensate Drain section for recommendations and procedures.

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. 9 or tube routing label on main furnace door to check for proper connections.

Modify tube as described below.

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

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

3.Route extended tube:

a.Behind inducer housing.

b.Between blower shelf and inducer housing.

c.Behind inducer motor bracket.

d.Between inducer motor and pressure switch.

CAUTION: The condensate trap MUST be installed below furnace. See Fig. 4 for dimensions. The drain connection to condensate trap must also be properly sloped to an open drain.

NOTE: Vent pipe length is restricted to a minimum of 5 ft. (See Table 4.)

NOTE: A 12-in. minimum horizontal pipe section is recom- mended with short (5 to 8 ft) vent systems. This recommendation is to reduce excessive condensate droplets from exiting the vent pipe. (See Fig. 10 or 32.)

V.HORIZONTAL RIGHT (SUPPLY-AIR DISCHARGE) APPLICATIONS

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

CAUTION: Local codes may require a drain pan under entire furnace and condensate trap when a condensing furnace is used in attic application or over a finished ceiling.

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

E.Condensate Trap Freeze Protection

Refer to Condensate Drain Protection section for recommenda- tions and procedures.

F.Construct a Working Platform

Construct working platform where all required furnace clearances are met. (See Fig. 3 and 10.)

NOTE: In Canada, installations shall be in accordance with current NSCNGPIC Installation Codes and/or local codes.

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 11.

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

PLUG
	CAP
AUXILIARY "J" BOX	COLLECTOR BOX
RELOCATED HERE	DRAIN TUBE
	(BLUE AND WHITE STRIPED)

CONDENSATE	COLLECTOR BOX
TRAP
	TUBE (GREEN)
COLLECTOR	INDUCER HOUSING
	DRAIN TUBE (VIOLET)
BOX EXTENSION	COLLECTOR BOX
DRAIN TUBE
	DRAIN TUBE (BLUE)

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

A93302

Fig. 9ÐHorizontal Left Tube Configuration

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