Trane ADD2B060A9V3VA Installer'S Manual Download Page 9

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18-CD31D1-3

Installer’s Guide

2. The return air filter and rack are shipped in either the

bottom or side location. Remove the filter and filter

rack by first turning the two latches on the blower door

and tilting the door forward to remove. Remove the

filter by sliding it out of the rack. Compress the spring

loaded filter rack to disengage the retaining pins/

screws from the furnace sides and slide the filter rack

out.

The filter rails are spring loaded for automatic adjust-

ment to allow standard size, locally obtainable replace-

ment filters. The filter rack itself slides to adjust to the

required width needed for bottom or side return (See

Figure 14).

3. For upflow side return installations, remove the

insulation around the opening in the blower compart-

ment.

4. The side panels of the upflow furnace include locating

notches that are used as guides for cutting an open-

ing for return air, refer to Figure 12 and the outline

drawing on page 4 for duct connection dimensions for

various furnaces.

WARNING

TO PREVENT INJURY OR DEATH DUE TO CONTACT
WITH MOVING PARTS, TURN THE POWER TO THE
FURNACE OFF BEFORE SERVICING FILTERS.

5. The bottom panel of the upflow furnace must be re-

moved for bottom return air. After removing the filter

and filter rack, lay the furnace on its back. Remove the

two 5/16" hex screws securing the front of the bottom

channel to the cabinet. Rotate the channel downward

(or remove by lowering the front edge of the channel

and pulling forward). Slide the bottom return air panel

out of the cabinet. Rotate the front channel to its origi-

nal position and reinstall the two 5/16” screws.

6. If a 3/4" flange is to be used for attaching the air inlet

duct, add to cut where indicated by dotted lines in

Figure 12. Cut corners diagonally and bend outward to

form flange.

7. If flanges are not required, and a filter frame is in-

stalled, cut between locating notches (See Figure 13).

Upflow Furnaces:

a filter rack is factory supplied for

bottom or side return. Use the filter rack on either side

or on the bottom if the filter is to be used within the

furnace cabinet.

When the upflow furnace is installed in the horizontal

right or left application and a return duct is attached

to the top side as shown in Figure 11, remove the filter

from the furnace and install in a remote location.

Do not install the filter in the return duct directly

above the furnace in horizontal applications.

When the upflow furnace is installed in the horizontal

right or left application and a close coupled (less than

36") return duct is attached to the bottom side of the

furnace as shown in Figure 11, securely attach a 1/2"

mesh metal hardware cloth protective screen to the

inside bottom of the filter grill

to prevent personal

injury from contacting moving parts when reach-

ing into the return opening to replace the filter.

Close coupled (less than 36") return (filter directly

beneath bottom side return) is not recommended due to

noise considerations.

Downflow Furnaces:

Brackets are factory supplied

to mount filters in the return air duct work.

9. Connect the duct work to the furnace. See Outline

Drawing for supply and return duct size and location.

WARNING

Do not install the filter in the return duct directly above the
furnace in horizontal applications. Install the filter remotely.
Installing the filter directly above the furnace in horizontal
applications may cause property damage, serious injury or
death.

FILTER

REMOVE FILTER FROM UPFLOW

FURNACE WHEN RETURN DUCT IS

ATTACHED TO FURNACE TOP SIDE

(HORIZONTAL LEFT OR RIGHT AP-

PLICATIONS) AS SHOWN.

Close coupled (less than 36")

return (filter directly beneath bottom

side return) not recommended due to

noise considerations. If used, securely

attach 1/2" mesh metal hardware cloth

protective screen to the inside bottom