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6 18-CD19D8-18

Installer’s Guide

DOWNFLOW INSTALLATIONS

UPFLOW

FURNACE

CASED

COIL

SCREWS

(BOTH SIDES)

STANDOFFS

(BOTH SIDES)

STANDOFFS (4)

DRILL SCREWS (4)

FOR VERTICAL

▲

WARNING

Do not install the furnace directly on carpeting, tile or other

combustible material other than wood flooring. For

vertical downflow application, subbase (BAYBASE205)

must be used between the furnace and combustible

flooring. When the downflow furnace is installed vertically

with a cased coil, a subbase is not required.

UPFLOW INSTALLATION

Standoffs and screws (See Figure 1) are included with the

cased coils for attachment to the furnace. There are clear-

ance alignment holes near the bottom of the coil wrapper.

Drill screws are used to engage the furnace top flanges. The

standoff is inserted into the cabinet alignment hole. The drill

screws are inserted through the standoffs then screwed into

the furnace flange. The coil is always placed downstream of

the furnace airflow.

TABLE 1

CABINET

WIDTH

RETURN

DUCT WIDTH

FLOOR OPENING PLENUM OPENING

"A" "B" "C" "D"

14-1/2" 13-1/4" 13-5/8" 20-1/8" 12-5/8" 19-3/8"

17-1/2" 16-1/4" 16-5/8" 20-1/8" 15-5/8" 19-3/8"

21" 19-3/4" 20-1/8" 20-1/8" 19-1/8" 19-3/8"

24-1/2" 23-1/4" 23-5/8" 20-1/8" 22-5/8" 19-3/8"

HORIZONTAL INSTALLATION

The coil and furnace must be fully supported when used in

the horizontal position. It is always recommended that an

auxiliary drain pan be installed under a horizontally in-

stalled evaporator coil or 90% gas furnace. Connect the

auxiliary drain line to a separate drain line (no trap is

needed in this line).

Three brackets (with screws) are included with downflow

furnaces for installation to stabilize and secure the furnace

and TXC cased coil in the horizontal position. See Fig-

ure 4.

Required floor opening: (DOWNFLOW)

See Figure 3 and Table 1

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FURNACE

FRONT

A (width)

B (depth)

UPFLOW/

HORIZONTAL

SHOWN WITH

DIRECT VENT

IMPORTANT:

The 2/4TXC cased coil must be placed downstream of the

furnace. In horizontal installations, the apex of the coil

may point either toward or away from the furnace. See

the 2/4TXC coil Installer's Guide for more details.

The cased coil is secured to the furnace and both the furnace

and the cased coil must be properly supported. The brackets

mount using the rear screws on the coil case and use the

screws provided to secure the bracket to the furnace. The

remaining bracket is placed as close to center as possible

(horizontally) between the coil case front and the furnace

bottom channel (for downflow/horizontal furnace). Use four of

the screws provided to secure the bracket. The upflow furnace,

converted to horizontal, aligns and attaches the TXC coil as in

Figure 1. However, the coil requires additional support.

The furnace may be installed in an attic or crawl space in the

horizontal position by placing the furnace on the left side (as

viewed from the front in the vertical position). The horizontal

furnace installation in an attic should be on a service plat-

form large enough to allow for proper clearances on all sides

and service access to the front of the furnace (See Figure 5 &

Clearance Tables, pages 4-5). Line contact is only permis-

sible between lines formed by intersections of the top and two

sides of the furnace casing and building joists, studs, or

framing.

The furnace may be placed horizontally in a crawl space on a

pad or other noncombustible material which will raise the

unit for sufficient protection from moisture.

DOWNFLOW ONLY

CASED COIL CONNECTION

BRACKET FOR DOWNFLOW

FURNACE IN HORIZONTAL

Brand	Trane
Model	TUX2B060A9362A
Category	Furnace
Language	English

Trane TUX2B060A9362A User Manual

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