Trane BAYSQRD001 Assembly instructions

18-HE79D1-1E-EN

ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES.

IMPORTANT — This Document is customer property and is to remain with this unit. Please return to service information

pack upon completion of work.

Square to Round Adaptor Kit

These instructions do not cover all variations in systems or provide for every possible contingency to be met in connection with

the installation. Should further information be desired or should particular problems arise which are not covered sufficiently for the

purchaser’s purposes, the matter should be referred to your installing dealer or local distributor.

Note: The manufacturer recommends installing only approved matched indoor and outdoor systems. All of the manufacture’s split

systems are AHRI rated only with TXV/EEV indoor systems. Some of the benefits of installing approved matched indoor and out-

door split systems are maximum efficiency, optimum performance and the best overall system reliability.

Installer’s Guide

Models

BAYSQRD001

BAYSQRD002

Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of

heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and train-

ing. Improperly installed, adjusted or altered equipment by an unqualified person could result in death or serious in-

jury. When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels

that are attached to the equipment.

WARNING

2 18-HE79D1-1E-EN

Installer's Guide

Safety Section

HAZARDOUS VOLTAGE!

Failure to follow this Warning could result in property

damage, severe personal injury, or death.

Disconnect all electric power, including remote discon-

nects before servicing. Follow proper lockout/tagout

procedures to ensure the power cannot be inadver-

tently energized.

General Data

Kit Contents

Items Quantity

Supply Adaptor 1

Return Adaptor 1

Gasketing A/R

Inspection

Check carefully for any shipping damage. This must be

reported to and claims made against the transportation

company immediately. Any missing parts should be

reported to your supplier at once and replaced with

authorized parts only.

Install Adaptor Kit

1. Remove the panels covering both the horizontal

supply and return openings on the unit.

2. Attach gasketing to the flanges on both adaptors.

3. Place one of the adaptors over the supply opening.

Align the adaptor so that the left side edge of the

adaptor flange is flush to the side of the mitred

corner post on the cabinet, and the bottom flange of

the adaptor is flush with the bottom of the cabinet.

Secure with sheet metal screws. See Figure 1.

Figure 1. Install Supply Adaptor

18-HE79D1-1E-EN 3

Installer's Guide

4. For use with small 12 cabinet *****016-36

Models - Place the other adaptor over the return

opening of the cabinet. Align the adaptor so that

there is 1” between the flanges of the adaptors and

that the bottom flange is with the bottom of the

cabinet. Secure with sheet metal screws.

See Figure 2.

For use with medium 12 cabinet *****042-60

Models - Follow instructions above but leave a

4-1/2” gap. See Figure 2.

Figure 2. Install and Align Return Adaptor

A INSTALL NOTE

BAYSQRD001 1” AS ABOVE

BAYSQRD002 4- 1/2” LONGER 20.92” SIDE TOP/BOTTOM

5. For use with **CA4024-60 Models - Place

adaptors over the supply and return openings and

align with dimples. Secure with sheet metal screws.

The 16” or the 18” flexduct can be used.

See Figures 3 and 4.

Note: The steps 3 and 4 do not apply to **CA4024-

60 models.

Note: * indicates alpha character.

Figure 3. Install Supply Adaptor (**CA4024-60)

Note: Notice orientation of the Adaptor.

Figure 4. Install and Align Return Adaptor

(**CA4024-60)

INSTALL NOTE

BAYSQRD001 AS ABOVE

BAYSQRD002 SHORTER 20.35” SIDE TOP/BOTTOM

About Trane and American Standard Heating and Air Conditioning

Trane and American Standard create comfortable, energy efficient indoor environments for residential applications.

For more information, please visit www.trane.com or www.americanstandardair.com

The manufacturer has a policy of continuous data improvement and it reserves the right to change design and specifications without notice. We are

committed to using environmentally conscious print practices.

18-HE79D1-1E-EN 14 Jul 2023

Supersedes 18-HE79D1-1D-EN (June 2020)

20.35

20.92

18.85

19.42

TOP/BOTTOM

SIDE SIDE

Note: Flexduct size is 18”

*Depth is 6”

Note: Rotate 90°for

**CA4024-60 models

6. Connect field supplied flex duct to the adaptors and secure with field supplied clamps. See Figure 5 for

dimensional drawings for flexduct sizing.

Figure 5. Dimensional Drawing

BAYSQRD001 Dimensions

(For use on *****018-036 Units)

14.42

18.85

16.42

20.85

Note: Flexduct size is 16”

*Depth is 6”

BAYSQRD002 Dimensions

(For use on *****042-060 Units)

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