Trane 4TEE3F48A1000A Assembly instructions

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 informa-
tion pack upon completion of work.
HAZARDOUS VOLTAGE - DISCONNECT POWER BEFORE SERVICING
WARNING:
Installer’s Guide
A. GENERAL INFORMATION
▲
WARNING
!
THIS INFORMATION IS FOR USE BY INDIVIDUALS
HAVING ADEQUATE BACKGROUNDS OF ELECTRICAL
AND MECHANICAL EXPERIENCE. ANY ATTEMPT TO
REPAIR A CENTRAL AIR CONDITIONING PRODUCT
MAY RESULT IN PERSONAL INJURY AND/OR PROP-
ERTY DAMAGE. THE MANUFACTURER OR SELLER
CANNOT BE RESPONSIBLE FOR THE INTERPRETA-
TION OF THIS INFORMATION, NOR CAN IT ASSUME
ANY LIABILITY IN CONNECTION WITH ITS USE.
▲
CAUTION
!
To prevent shortening its service life, the air handler
should not be used during the finishing phases of con-
struction. The low return air temperatures can lead to
the formation of condensate. Condensate in the pres-
ence of chlorides and fluorides from paint, varnish,
stains, adhesives, cleaning compounds, and cement
creates a corrosive condition which may cause rapid
deterioration of the cabinet and internal components.
These instructions do not cover all variations in sys-
tems or provide for every possible contingency. Should
further information be desired or particular problems
arise which are not covered sufficiently by this manual,
contact your local distributor or the manufacturer as
listed on the air handler nameplate.
These Air Handlers are shipped from the factory in the
upflow or horizontal right configuration and are fully
convertible to downflow or horizontal left. Refer to Sec-
tion C beginning on page 3 for additional information.
INSPECTION
Check carefully for any shipping damage. This must be
reported to and claims made against the transportation
company immediately. Check to be sure all major com-
Convertible Variable Speed – Air Handlers 3.5 - 5 Ton
CONTENTS
General Information .............................................. 1
Installation Limitations & Recommendations ...................... 1
Two Piece Cabinet Disassembly ........................ 3
Unit Installation ...................................................... 4
Vertical Upflow ....................................................................... 4
Vertical Downflow ................................................................... 4
Horizontal Left ........................................................................ 7
Horizontal Right ..................................................................... 8
Refrigerant Piping ................................................. 8
Condensate Drain Piping ...................................... 9
Electrical - Wiring ................................................. 10
Airflow Adjustment ............................................... 10
Hook Up Diagrams ............................................... 12
Outline Drawings ................................................. 15
Checkout Procedures .......................................... 18
ponents are in the unit. Any missing parts should be re-
ported to your supplier at once, and replaced with au-
thorized parts only.
CAUTION
!
Cardboard packing material must be removed from in-
side the blower assembly before starting the unit.
Failure to do so may cause indoor blower motor failure.
INSTALLATION LIMITATIONS & RECOMMENDATIONS
The general location of the air handler is normally se-
lected by the architect, contractor and/or home owner
for the most effective application and satisfaction.
NOTE: Condensation may occur on the surface of the
air handler when installed in an unconditioned loca-
tion. When units are installed in unconditioned spaces,
verify that all electrical and refrigerant line penetrations
on the air handler are sealed completely.
18-GE12D1-8
NOTE: Version française sur la page 17.
4TEE3F39A1000A, 4TEE3F48A1000A,
4TEE3F48B1000A, 4TEE3F64A1000A
NOTE: The 4TEE3F48B air handler should NOT be
installed in the horizontal left or down flow
configuration unless the outdoor unit has an AHRI
rating with 18-GJ23D1 in the AHRI Directory. System
ratings listed without 18-GJ23D1 are for horizontal
right and upflow configurations only. The
manufacturer recommends installing only approved,
matched indoor and outdoor systems.

© 2010 American Standard Heating & Air Conditioning
Installer’s Guide
6. When the air handler with supplementary heater is
to be installed in the downflow position on combus-
tible flooring an accessory sub-base (TAYBASE100
for 4TEE3F39-64) must be used. See Figure 1.
7. If supplementary heat is to be added, power supply
must be sufficient to carry the load. In addition,
minimum air flow settings, unit and duct clearances
to combustible material must be maintained as
stated on the air handler rating nameplate.
▲
CAUTION
!
For air handlers not equipped with a factory installed
electric heater, a field installed heater is available from
American Standard Inc. Only heaters built by American
Standard Inc. are approved for use in the air handler.
These heaters have been designed and tested in accor-
dance with UL standards to provide safe and reliable
operation. A list of approved heaters is provided on the
air handler rating nameplate. Heaters that are not fac-
tory approved could cause damage and are not cov-
ered under equipment warranty.
NOTE: If air handler is used WITHOUT a supplementary
electric heater, a sheetmetal plate is required to cover
the open hole in the airflow system (See Figure 2)
. In
addition, ensure that the cabinet is sealed air tight
where the field wires enter the unit.
These air handlers are suitable for installation in a
closet, alcove or utility room with free, non-ducted, air
return, using the area space as a return air plenum.
With ducted supply air, if the minimum clearances to
combustible materials and service access are observed,
the above installations are suitable.
This area may also be used for other purposes, includ-
ing an electric hot water heater - but in no case shall
a fossil fuel device be installed and/or operated in
the same closet, alcove or utility room.
In addition, these air handlers are suitable for installa-
tion in an attic, garage or crawl space with ducted sup-
ply and return air.
This equipment has been evaluated in accordance with
the Code of Federal Regulations, Chapter XX, Part 3280
or the equivalent. “SUITABLE FOR MOBILE HOME
USE”
For proper installation the following items must be con-
sidered:
1. If adequate power is available and correct according
to nameplate specifications.
2. Insulate all ducts, particularly if unit is located out-
side of the conditioned space.
3. Pursuant to Florida Building Code 13-610.2.A.2.1,
this unit meets the criteria for a factory sealed
air handler.
4. To ensure maximum efficiency and system perfor-
mance, the existing supply and return duct system
static pressures must not exceed the total available
static pressure of the air handler. Reference ACCA
Manual D, Manual S and Manual RS along with the
air handler Product Data and Service Facts for addi-
tional information.
5. It is recommended that the outline drawing be stud-
ied and dimensions properly noted and checked
against selected installation site. By noting in ad-
vance which knockouts are to be used, proper clear-
ance allowances can be made for installation and
possible future service. From Dwg. 21B140413
4" 6"
17"
1"
3/8"
1/4" HOLES (4)
ACCESSORY BAY99X123
IF AIRHANDLER IS USED
WITHOUT A FACTORY FURNISHED
SUPPLEMENTARY HEATER, A PLATE IS REQUIRED TO COVER
THE OPEN HOLE IN THE AIR FLOW SYSTEM
Figure 2
B
A
JOIST
JOIST
JOISTS
HEADER
JOISTS
HEADER
NAILS
REAR
FLANGE
FRONT OF
UNIT
HEADER
1"
NAILS
HEADER
MIN. SPACING TO
ANY COMBUSTIBLE
MATERIAL.
1"
APPROX. 3/4" FLANGES ON FIELD
FABRICATED DUCT OR PLENUM
ONE INCH DUCT SPACERS
FLOOR
SUBBASE
UNIT
FLOOR OPENING - SIZE
MODEL NO. A B
TAYBASE100 23-3/4 14-13/16
TAYBASE101 21-3/4 14-13/16
TAYBASE102 26-3/4 14-13/16 Figure 1
AIR HANDLER SUB-BASE

18-GE12D1-8 3
Installer’s Guide
B. Two Piece Cabinet Disassembly
(OPTIONAL)
NOTE: For easier installation into tight areas, the 4 and
5 ton air handlers can be disassembled and reas-
sembled after moved to an attic or other space.
Steps for disassembly and reassembly (See Figures 3
and 4)
1. Disconnect wiring.
2. Remove center bracket.
3. Remove blower assembly.
4. Remove coil.
5. Cut foil tape - minimum 3" foil tape.
6. Remove top 8 screws. See Figure 3.
7. Lift upper section.
2 Piece Wrapper Spear
Figure 4
Figure 3 Closeup of Spear Locations
S
CREWS 5-8
L
OCATED ON
L
EFT SIDE
1
2
3
4
8. If the unit is installed without a return air duct, ap-
plicable local codes may limit this air handler to in-
stallation only in a single story residence & within
conditioned space.
9. If the outdoor unit is to be installed later, or by oth-
ers, then installation of the air handler must be
made to allow access for refrigerant lines, or attach
refrigerant lines to air handler when installing.
10. Make sure there are provisions for installing con-
densate drain lines.
11. If side, front or rear return is required, air handler
must be elevated or placed on a plenum
(TAYPLNM100). Connecting return duct directly to
the side, front or rear of the cabinet is not ap-
proved.
12. Route refrigerant & condensate drain lines away
from air handler so they do not interfere with ac-
cess panels and filters.
13. When external accessories are used, the additional
height and width requirements must be considered
in the overall space needed.
14. These units are not approved for outdoor installa-
tion.
15. These units are approved for draw-through application
only.
16. Flow-through Bypass Humidifiers
Excessive bypass air may cause water blow-off,
which will adversely affect system operation and air
cleaner performance. To verify bypass airflow, fol-
low the Bypass Humidifier Pre-Installation Check-
out and Set-Up Procedures available through your
local distributor. Ask for publication number 18-
CH37D1-1.
Steam and Flow-through Fan Power Duct-
mounted Humidifiers
Follow the humidifier installation instructions.
These should only be installed on the supply air
side of the system.
8. Set air handler in place.
9. Attach screws - insure gaskets are aligned
along flange.
10. Use foil tape to seal - use minimum 3" foil tape.
11. Insert coil.
12. Reinstall blower assembly.
13. Reinstall center bracket.
14. Reconnect wiring.
NOTE: In Downflow, remove coil before blower by re-
versing steps 3 and 4.

418-GE12D1-8
Installer’s Guide
C. UNIT INSTALLATION
UPFLOW
a. For maximum efficiency, the horizontal drip
tray should be removed. See Figures 5, 6 and 7.
Tray removal requires that the coil be removed
by sliding the coil out on the coil channel sup-
ports. There is a coil support tab at the top of the
coil connected to the case must be removed first.
Remove 1 inch insulation strip covering the lip of
the drip tray. The tray is detached by removing
the two screws at the drain pan. Remove the two
screws holding the two brackets at the top of the
coil. Remove drip tray by gently breaking the
seal between the drip tray and drain pan.
b. Remove the factory installed baffle assembly
from the apex of the coil by using a 5/16"
nutdriver to remove the screw. Replace this
baffle with the factory supplied narrow coil baffle
using the screws removed previously. See Figure
8. Reinstall coil assembly.
▲
CAUTION
!
When installing the narrow coil baffle, make sure to
align the baffle up with the holes so NOT to puncture
the coil tubing.
c. Position unit on Pedestal or other suitable foun-
dation. If Pedestal is not used, a frame strong
enough to support the total weight must be pro-
vided. Provide a minimum height of 14 inches for
proper unrestricted airflow.
d. If a return air duct is connected to the air han-
dler, it must be the same dimensions as shown in
the outline drawing on page 14.
e. Pedestal and unit should be isolated from the
foundation using a suitable isolating material.
f. Openings where field wiring enters the
cabinet must be completely sealed. Location
of power entry is shown on the Outline Drawing.
Use 2.5" clear stickers provided to seal all unused
electrical knockouts. See Figure 13.
g. After ductwork connections are made, seal air-
tight and per Local codes.
DOWNFLOW
a. For maximum efficiency, the horizontal drip
tray should be removed. See the Downflow Kit
Installer's Guide 18-GJ23D1-1 for complete in-
structions.
b. If a return duct is connected to the air handler, it
must be the same dimensions as the return
opening shown in the outline drawing on page
15.
Figure 5 Drip Pan Foam Removal
Figure 6 Horitzontal Drip Pan Removal
Figure 7 Drip Pan Bracket Removal

18-GE12D1-8 5
Installer’s Guide
c. Openings where field wiring enters the
cabinet must be completely sealed. Loca-
tion of power entry is shown in the outline
drawing. Use 2.5" clear stickers provided to
seal all unused electrical knockouts. See
Figure 13.
d. After ductwork connections are made, seal air-
tight and per Local codes.
DOWNFLOW BAFFLE KIT
X
X
7/8" GASKET
SCREWS TO
REMOVE COIL
SCREWS TO
REMOVE COIL
DISCARD
DRIP TRAY
1/2" GASKET
INSIDE SURFACE
OF BAFFLE
7/8" GASKET
SECT. X-X
(TYP. BOTH SIDES)
FILL WITH SEALANT
WATER
BLOW-OFF
BAFFLES
ATTACH WITH
2 SCREWS
EACH SIDE
WATER
DIVERTER
BAFFLES
(5-ton only)
Figure 9
Remove
and
Discard
Replace
with
Narrow
Baffle
For Maximum Efficiency on
Horizontal Left,
Upflow and Downflow
Figure 8

618-GE12D1-8
Installer’s Guide
WHEN INSERTING COIL, TILT COIL FORWARD TO ALLOW
DRAINPAN TO CLEAR TABS ON COIL CHANNEL SUPPORTS.
FOR DOWNFLOW OR HORIZONTAL LEFT APPLICATIONS:
DRAINPAN SHOWN
IN PLACE
TAB - AS MOUNTED
ON COIL CHANNEL
SUPPORT
Figure 10
TO REMOVE BLOWER ASSEMBLY WHEN COIL IN
PLACE, PRESS UP ON COIL USING THUMBS
WHILE PULLING BLOWER FORWARD.
Figure 12
Figure 11

18-GE12D1-8 7
Installer’s Guide
HORIZONTAL LEFT
a. For maximum efficiency and Customer ease of
filter maintenance, it is recommended that a
properly sized remote filter and grille be in-
stalled for horizontal applications. Airflow should
not exceed the face velocity of the filter being
used. The factory installed filter should
then be removed from the unit.
b. To convert the unit to horizontal left, front ac-
cess, slide the coil out on the coil channel sup-
ports and rotate the complete coil 180 degrees.
c. Remove the factory installed baffle assembly
from the apex of the coil by using a 5/16"
nutdriver to remove the hex head screw. There
is a coil support tab at the top of the coil con-
nected to the case must be removed first. Re-
place this baffle with the factory supplied narrow
coil baffle using the screws removed previously.
See Figure 9.
d. The coil is then inserted back into the cabinet on
the opposite side coil channel supports. The unit
is now horizontal left with front access. Do not
reattach coil support tab.
e. If the unit is suspended, it must be supported
from the bottom near both ends as well as the
middle to prevent sagging. The service access
must remain unobstructed. If the unit is sup-
ported along the length of the front and back
with rails, the air handler only needs to be sus-
pended at both ends. See Figure 14.
Figure 13
Electrical Knockout Sticker Sheet
If the unit is not suspended it must be supported
as mentioned above and isolated carefully to pre-
vent sound transmission. Vibration isolators (pur-
chased locally) must be placed under the unit.
f. It is always recommended that an auxiliary drain
pan be installed under a horizontal air handler
(See Condensate Piping) to prevent possible dam-
age to ceilings.
g. Isolate the auxiliary drain pan from the unit or
from the structure.
h. Connect the auxiliary drain line to a separate
drain line (no trap is needed in this line) and ter-
minate according to national and local codes.
i. If a return duct is connected to the air handler, it
must be the same dimensions as the return
opening shown in the outline drawing on page
14.
j. Openings where field wiring enters the
cabinet must be completely sealed. Location
of power entry is shown on the outline drawing.
Use 2.5" clear stickers provided to seal all unused
electrical knockouts. See Figure 13.
k. After ductwork connections are made, seal air-
tight and per Local codes.
Rail
Figure 14

818-GE12D1-8
Installer’s Guide
HORIZONTAL RIGHT
a. For maximum efficiency and Customer ease of
filter maintenance, it is recommended that a
properly sized remote filter grille be installed
for horizontal applications. Airflow should not ex-
ceed the face velocity of the filter being used.
The factory installed filter should then be
removed from the unit.
b. Unit is shipped from the factory in the upflow or
horizontal right configuration. Unit conversion is
not required.
c. If the unit is suspended, it must be supported
from the bottom near both ends as well as the
middle to prevent sagging. The service access
must remain unobstructed. If the unit is sup-
ported along the length of the front and back, the
air handler only needs to be suspended at both
ends. See Figure 14.
d. If the unit is not suspended it must be isolated
carefully to prevent sound transmission. Vibra-
tion isolators (purchased locally) must be placed
under the unit.
e. It is always recommended that an auxiliary drain
pan be installed under a horizontal air handler
(See Condensate Drain Piping) to prevent pos-
sible damage to ceilings.
f. Isolate the auxiliary drain pan from the unit or
from the structure.
g. If a return duct is connected to the air handler, it
must be the same dimensions as the return
opening shown in the outline drawing on page
14.
h. If a return duct is connected to the air handler, it
must be the same dimensions as the return
opening shown in the outline drawings.
i. Openings where field wiring enters the cabi-
net must be completely sealed. Location of
power entry is shown on the outline drawing.
Use 2.5" clear stickers provided to seal all unused
electrical knockouts. See Figure 13.
j. After ductwork connections are made, seal air-
tight and per Local codes.
D. DUCT CONNECTIONS
The supply and return air ducts should be connected to
the unit with flame retardant duct connectors.
Convertible duct flanges are provided on the discharge
opening to provide a “flush fit” for 3/4" or 1-1/2" duct
board applications, see the Outline drawing on page 16
for sizes of the duct connections. After the duct is se-
cured, seal around the supply duct to prevent air leak-
age.
NOTE: If the convertible duct flanges are not used, they
must be removed and discarded for proper airflow.
E. REFRIGERANT PIPING
IMPORTANT:
Refrigerant piping must be routed to maintain service
access to blower compartment and provide easy re-
moval of filter access panel and filter.
NOTE: Penetration around the Refrigerant lines must
be sealed and Electrical inlets need to be sealed at
both the low and the high voltage.
1. Refrigerant connections are made outside the cabi-
net.
2. Installation of refrigerant lines is covered in the in-
stallation instructions packaged with the outdoor
unit. Evacuation, leak testing and brazing proce-
dures are included in those instructions. Read those
instructions before starting installation of refriger-
ant lines.
NOTE: TXV Equipped is Non-Bleed, and may require a
start kit on the outdoor unit.
BRAZE SHIELD
Figure 16
Flange Attachment
Figure 15

18-GE12D1-8 9
Installer’s Guide
F. BRAZING TO EVAPORATOR SECTION
NOTE: A brazing shield is provided in the information
pack accompanying this unit. This shield fits over the
refrigerant fittings while brazing. Wet the shield before
brazing. See Figure 16.
IMPORTANT:
Do NOT unseal refrigerant tubing until ready to cut and
fit refrigerant lines.
1. Remove both sealing caps from indoor coil.
2. Field supplied tubing should be cut squared-off, en-
suring the tube is still round and free of burrs at
the connecting end. Clean the tubing to prevent
contaminants from entering the system.
3. Run refrigerant tubing into the stub sockets of in-
door unit coil. Refrigerant line openings must be
completely sealed.
4. Braze and evacuate according to indoor and outdoor
installation instructions.
5. Seal around refrigerant lines.
PAINTED AREAS OF UNIT MUST BE SHIELDED
DURING BRAZING
G. CONDENSATE DRAIN PIPING
NOTE: Make certain that the unit has been installed in a
level position to ensure proper draining.
The indoor blower is downstream of the evaporator coil
which creates a negative pressure at the condensate
drain connections during operation. The condensate
drain connections in front of the indoor coil are 3/4"
NPT. The lower connection is the primary drain. See
Figure 17.
Two secondary drain connections are provided for the
different orientations (See Figure 17). The lower of the
two should be connected as a backup to prevent conden-
sate overflow by a blocked primary drain.
For proper drainage of condensate, the following steps
should be followed:
1. The primary drain line must be trapped with a
minimum of 2" water seal as shown in Figures 17 &
18. Do not use preformed 3/4" PVC running
traps.
The use of Field fabricated or manufactured traps
as shown in Figures 18 & 19 is acceptable. The
manufactured trap shown in Figure 18 allows for a
float switch option to be added.
Refer to the manufacturers data and instructions
for details.
2. The trap must be located within 4 feet of the air
handler drain outlet connection.
3. It is recommended that a clean-out tee or cross be
installed in the primary drain line for future main-
tenance (See Figure 18 & 19).
3/4" NPT Secondary
drain connection
3/4" NPT Primary
drain connection
Figure 17
2" MINIMUM
2" MINIMUM
Manufactured traps
EZT-105 Figure 18
Field fabricated trap
2" MIN.
2" MIN.
CAP OR PLUG
Trap must be within 4'
of air handler condensate
drain connection.
Close as possible
Figure 19
4. Do not use reducing fittings in the condensate drain
lines.
5. Slope the drain lines downward a minimum of 1/4"
per foot.
6. Insulate the primary drain to prevent sweating
where pipe temperature could meet or fall below
dewpoint temperatures.
7. Provide means for drainage to prevent winter
freeze-up of condensate line.

10 18-GE12D1-8
Installer’s Guide
I.CONTROL WIRING
1. Connect wiring between indoor unit, outdoor unit
and Comfort Control. The use of color-coded low-
voltage wires is recommended.
2. A low voltage terminal board is provided for control
wiring, and is located on the left side of the cross
brace in the center of the unit.
3. If the low voltage wiring diagram is not listed in
this installer’s guide for the particular application,
refer to the wiring diagram located on the control
box cover of the outdoor unit or in the outdoor
unit’s service facts.
IMPORTANT:
When supplementary heaters are installed, inspect to
insure that all packaging material has been removed.
J. AIRFLOW ADJUSTMENT
▲
CAUTION
!
Disconnect power to the air handler before changing
dip switch positions.
Failure to follow this procedure may result in equip-
ment damage.
Blower speed changes are made on the ECM Fan Con-
trol mounted on the control box. The ECM Fan Control
controls the variable speed motor.
There is a bank of 8 dip switches (See Figure 20). The
dip switches work in pairs to match the airflow for the
outdoor unit size (tons), cooling airflow adjustment, Fan
off-delay options, and heating airflow adjustment. The
switches appear as shown in Figure 21.
If the airflow needs to be increased or decreased, see
the Airflow Label on the air handler or the Blower Per-
formance Table in the Service Facts. Information on
changing the speed of the blower motor for your specific
outdoor model size is in the Blower Performance Table.
8. Do not connect the drain line to a closed drain sys-
tem.
9. Use Teflon®tape on the air handler drain line con-
nections! Do Not Use pipe joint compound or PVC/
CPVC cement!
It is always recommended that an auxiliary drain pan
be installed under a horizontally installed air handler.
Connect the auxiliary drain line to a separate drain line
(no trap is needed in this line) and terminate according
to local codes.
NOTE: DO NOT use a torch or flame near the plastic
drain pan coupling.
NOTE: DO NOT tighten the drain pipe excessively. Sup-
port the condensate piping and traps outside the unit
to prevent strain on the drain coupling.
H. ELECTRICAL — POWER WIRING
1. These Air Handlers are shipped from the factory
wired for 230 volts. The units may be wired for 208
volts. Follow instructions on unit wiring diagram lo-
cated on blower housing and in the Service Facts
document included with the unit.
2. The selection of wire and fuse sizes should be made
according to the Minimum Branch Circuit Ampacity
and the Maximum Overcurrent Device listed on the
unit nameplate.
▲
WARNING
!
TO PREVENT INJURY OR DEATH DUE TO ELECTRICAL
SHOCK OR CONTACT WITH MOVING PARTS, LOCK
UNIT DISCONNECT SWITCH IN OPEN POSITION BE-
FORE SERVICING UNIT.
3. Field wiring diagrams for electric heaters and unit
accessories are shipped with the accessory.
4. Wiring must conform to National and Local codes.
If an electric heater is not installed, connections are
made through the 7/8" knockout into the air handler
junction box to the two power leads and ground wire
connections which are located near the discharge of the
blower.
NOTE: If air handler is used with or without a heater,
the electrical entry hole as well as any other cabinet
penetrations must be sealed air-tight.