Installer’s Guide
▲
▲
18-GE12D1-8
Convertible Variable Speed – Air Handlers 3.5 - 5 Ton
4TEE3F39A1000A, 4TEE3F48A1000A,
4TEE3F48B1000A, 4TEE3F64A1000A
WARNING:
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.
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.
A. GENERAL INFORMATION
!
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 PROPERTY DAMAGE. THE MANUFACTURER OR SELLER
CANNOT BE RESPONSIBLE FOR THE INTERPRETATION OF THIS INFORMATION, NOR CAN IT ASSUME
ANY LIABILITY IN CONNECTION WITH ITS USE.
HAZARDOUS VOLTAGE - DISCONNECT POWER BEFORE SERVICING
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
WARNING
Horizontal Right ..................................................................... 8
Refrigerant Piping ................................................. 8
Condensate Drain Piping ...................................... 9
Electrical - Wiring ................................................. 10
Airflow Adjustment ............................................... 10
Hook Up Diagrams ............................................... 12
Outline Drawings ................................................. 15
!
CAUTION
To prevent shortening its service life, the air handler
should not be used during the finishing phases of construction. The low return air temperatures can lead to
the formation of condensate. Condensate in the presence 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 systems 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 Section 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-
Checkout Procedures .......................................... 18
NOTE: Version française sur la page 17.
ponents are in the unit. Any missing parts should be reported to your supplier at once, and replaced with authorized parts only.
!
CAUTION
Cardboard packing material must be removed from inside 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 selected 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 location. When units are installed in unconditioned spaces,
verify that all electrical and refrigerant line penetrations
on the air handler are sealed completely.
Installer’s Guide
▲
AIR HANDLER SUB-BASE
JOISTS
HEADER
HEADER
JOISTS
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
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, including 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 installation in an attic, garage or crawl space with ducted supply 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 considered:
1. If adequate power is available and correct according
to nameplate specifications.
2. Insulate all ducts, particularly if unit is located outside 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 performance, 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 additional information.
5. It is recommended that the outline drawing be studied and dimensions properly noted and checked
against selected installation site. By noting in advance which knockouts are to be used, proper clearance allowances can be made for installation and
possible future service.
JOIST
B
A
JOIST
Figure 1
REAR
FLANGE
ONE INCH DUCT SPACERS
FRONT OF
UNIT
NAILS
HEADER
APPROX. 3/4" FLANGES ON FIELD
FABRICATED DUCT OR PLENUM
1"
UNIT
MIN. SPACING TO
ANY COMBUSTIBLE
1"
MATERIAL.
SUBBASE
FLOOR
NAILS
HEADER
6. When the air handler with supplementary heater is
to be installed in the downflow position on combustible 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 accordance 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 factory approved could cause damage and are not covered 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.
IF AIRHANDLER IS USED
SUPPLEMENTARY HEATER, A PLATE IS REQUIRED TO COVER
THE OPEN HOLE IN THE AIR FLOW SYSTEM
1"
4"
3/8"
WITHOUT
17"
ACCESSORY BAY99X123
Figure 2
A FACTORY FURNISHED
1/4" HOLES (4)
6"
From Dwg. 21B140413
© 2010 American Standard Heating & Air Conditioning
S
L
L
8. If the unit is installed without a return air duct, applicable local codes may limit this air handler to installation only in a single story residence & within
conditioned space.
9. If the outdoor unit is to be installed later, or by others, 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 condensate 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 approved.
12. Route refrigerant & condensate drain lines away
from air handler so they do not interfere with access 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 installation.
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, follow the Bypass Humidifier Pre-Installation Checkout and Set-Up Procedures available through your
local distributor. Ask for publication number 18CH37D1-1.
Steam and Flow-through Fan Power Ductmounted Humidifiers
Follow the humidifier installation instructions.
These should only be installed on the supply air
side of the system.
Installer’s Guide
CREWS 5-8
OCATED ON
EFT SIDE
1
3
Figure 3 Closeup of Spear Locations
Figure 4
2 Piece Wrapper Spear
2
4
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.
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 reversing steps 3 and 4.
5. Cut foil tape - minimum 3" foil tape.
6. Remove top 8 screws. See Figure 3.
7. Lift upper section.
18-GE12D1-8 3
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 supports. 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.
Figure 5 Drip Pan Foam Removal
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 provided. 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 instructions.
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 6 Horitzontal Drip Pan Removal
Figure 7 Drip Pan Bracket Removal
4 18-GE12D1-8
Installer’s Guide
c. Openings where field wiring enters the
cabinet must be completely sealed. Location 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
SCREWS TO
REMOVE COIL
7/8" GASKET
For Maximum Efficiency on
Horizontal Left,
Upflow and Downflow
Remove
and
Discard
Figure 8
DISCARD
DRIP TRAY
Replace
with
Narrow
Baffle
7/8" GASKET
SECT. X-X
(TYP. BOTH SIDES)
WATER
BLOW-OFF
BAFFLES
ATTACH WITH
2 SCREWS
EACH SIDE
X
X
1/2" GASKET
INSIDE SURFACE
OF BAFFLE
WATER
DIVERTER
BAFFLES
(5-ton only)
FILL WITH SEALANT
SCREWS TO
REMOVE COIL
Figure 9
18-GE12D1-8 5
Installer’s Guide
Figure 10
Figure 11
FOR DOWNFLOW OR HORIZONTAL LEFT APPLICATIONS:
WHEN INSERTING COIL, TILT COIL FORWARD TO ALLOW
DRAINPAN TO CLEAR TABS ON COIL CHANNEL SUPPORTS.
DRAINPAN SHOWN
IN PLACE
TAB - AS MOUNTED
ON COIL CHANNEL
SUPPORT
TO REMOVE BLOWER ASSEMBLY WHEN COIL IN
PLACE, PRESS UP ON COIL USING THUMBS
WHILE PULLING BLOWER FORWARD.
Figure 12
6 18-GE12D1-8
Electrical Knockout Sticker Sheet
Installer’s Guide
Rail
Figure 13
HORIZONTAL LEFT
a. For maximum efficiency and Customer ease of
filter maintenance, it is recommended that a
properly sized remote filter and grille be installed 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 supports 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 connected to the case must be removed first. Replace 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 supported along the length of the front and back
with rails, the air handler only needs to be suspended at both ends. See Figure 14.
Figure 14
If the unit is not suspended it must be supported
as mentioned above and isolated carefully to prevent sound transmission. Vibration isolators (purchased 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 damage 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 terminate 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.
18-GE12D1-8 7
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 exceed 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 supported 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. Vibration 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 possible 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.
Figure 15
Flange Attachment
E. REFRIGERANT PIPING
IMPORTANT:
Refrigerant piping must be routed to maintain service
access to blower compartment and provide easy removal 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 cabinet.
2. Installation of refrigerant lines is covered in the installation instructions packaged with the outdoor
unit. Evacuation, leak testing and brazing procedures are included in those instructions. Read those
instructions before starting installation of refrigerant lines.
NOTE: TXV Equipped is Non-Bleed, and may require a
start kit on the outdoor unit.
Figure 16
BRAZE SHIELD
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 secured, seal around the supply duct to prevent air leakage.
NOTE: If the convertible duct flanges are not used, they
must be removed and discarded for proper airflow.
8 18-GE12D1-8
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, ensuring 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 indoor 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.
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 maintenance (See Figure 18 & 19).
Manufactured traps
2" MINIMUM
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 condensate overflow by a blocked primary drain.
Figure 17
3/4" NPT Secondary
drain connection
3/4" NPT Primary
drain connection
2" MINIMUM
EZT-105
Figure 18
Field fabricated trap
CAP OR PLUG
2" MIN.
2" MIN.
Close as possible
Trap must be within 4'
of air handler condensate
drain connection.
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.
Figure 19
18-GE12D1-8 9
Installer’s Guide
▲
▲
8. Do not connect the drain line to a closed drain system.
9. Use Teflon
nections!
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. Support the condensate piping and traps outside the unit
to prevent strain on the drain coupling.
®
tape on the air handler drain line con-
Do Not Use pipe joint compound or PVC/
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 located 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.
I.CONTROL WIRING
1. Connect wiring between indoor unit, outdoor unit
and Comfort Control. The use of color-coded lowvoltage 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 equipment damage.
Blower speed changes are made on the ECM Fan Control 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 Performance 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.
10 18-GE12D1-8
Installer’s Guide
Be sure to set the airflow for the correct tonnage.
Refer to blower housing for correct setting.
Switches 1 - 4 Cooling Airflow
Switches 5 - 6 Fan Off Delay Options
Switches 7 - 8 Auxiliary Heat
CFM
SELECTION
LIGHT
ECM FAN CONTROL
DIP
SWITCHES
Figure 20
From Dwg. 800796a
If the optional humidistat is used, remove R-BK jumper
from the low voltage terminal board (not shown) and install the humidistat between R and BK. (Jumper R to O
for cooling-only/non-heat pump systems with a humidistat.)
INDOOR BLOWER TIMING
IMPORTANT:
Leave dip switch 5 & 6 in the "as-shipped" position
during system start-up and check out. Afterwards, adjust as desired.
The FAN-OFF period is set on the ECM Fan Control
board by dip switches #5 and #6. The blower off-delay
settings are as follows:
COOLING OFF - DELAY OPTIONS
SWITCH SETTINGS
SELECTION
5 - OFF 6 - OFF NONE SAME
5 - ON 6 - OFF 1.5 MINUTES 100% *
5 - OFF 6 - ON 3 MINUTES 50%
5 - ON 6 - ON ENHANCED** 50 - 100%
** - This ENHANCED MODE selection provides a ramping
up and ramping down of the blower speed to provide
improved comfort, quietness, and potential energy savings.
The graph shows the ramping process.
NOMINAL
AIRFLOW
NOTE: Direct drive motors have bearings which are
permanently lubricated and under normal use lubrication is not recommended.
100% if necessary
80%
Dehumidify
50%
Fast Coil Cooling
FAN OPERATION (CFM)
OFF OFF
and Heating
Efficiency
50%
Figure 21
COOLING
HEATING
AIRFLOW
FAN OFF
DELAY
DIP SWITCHES (AS SHIPPED)
AUXILIARY
HEAT SPEEDS
1
minute
COMPRESSOR OPERATION ON
7.5
minutes
as required
3
minutes
OFF
K. CHECKOUT PROCEDURE
1. Check the Air Handler installation in accordance
with the instructions on page 16.
2. “Operational Procedure” for the system installation
can be found in the outdoor unit installer guide and will
be compatible with this Air Handler.
18-GE12D1-8 11
Installer’s Guide
4TEE3F39, 48, 64 AIR HANDLERS WITH SINGLE STAGE COOLING, 2 STAGE HEAT
COMFORT CONTROL
2-STAGE HEAT/
1-STAGE COOL
VARIABLE SPEED
AIR HANDLER
COOLING
O.D. SECTION
(SINGLE SPEED)
NOTES:
1. LOW VOLTAGE WIRING TO BE NO.
18 A.W.G. MINIMUM CONDUCTOR.
2. WHEN HEATERS ARE USED, DISCARD
POWER LEADS WITH POLARIZED PLUG
PM-A AND CONNECT 1-PF TO MATING
PLUG IN THE HEATER CONTROL BOX
AS SHOWN.
3. TERMINAL W2 WILL HAVE INTERNAL
CONNECTIONS ONLY IF 2ND
CONTACTOR IS USED BY THE HEATER
FOR CONTROLLING POWER TO
ELECTRIC HEAT ELEMENTS. IF
2ND (BH) CONTACTOR IS NOT USED,
THEN FIELD CONNECTIONS TO W2 CAN
BE OMITTED AS APPROPRIATE.
4. CONNECTIONS TO "R", "BK",
"O" AND "Y" MUST BE MADE AS
SHOWN FOR PROPER OPERATION
OF BLOWER WITH HUMIDISTAT IN
COOLING.
From Dwg. No. B801074
4TEE3F39, 48, 64 AIR HANDLERS WITH SINGLE STAGE HEAT PUMP
HEAT PUMP
O.D. SECTION
(SINGLE SPEED)
NOTES:
1. LOW VOLTAGE WIRING TO BE NO.
18 A.W.G. MINIMUM CONDUCTOR.
2. WHEN HEATERS ARE USED, DISCARD
POWER LEADS WITH POLARIZED PLUG
PM-A AND CONNECT 1-PF TO MATING
PLUG IN THE HEATER CONTROL BOX
AS SHOWN.
3. TERMINAL W2 WILL HAVE INTERNAL
CONNECTIONS ONLY IF 2ND
CONTACTOR IS USED BY THE HEATER
FOR CONTROLLING POWER TO
ELECTRIC HEAT ELEMENTS. IF
2ND (BH) CONTACTOR IS NOT USED,
THEN FIELD CONNECTIONS TO W2 CAN
BE OMITTED AS APPROPRIATE.
4. IF ODT IS NOT USED, THEN
CONNECT APPROPRIATE JUMPER
FROM W1 TO W2 TO W3 ON LVTB..
5. CONNECTIONS TO "R", "BK",
"O" AND "Y" MUST BE MADE AS
SHOWN FOR PROPER OPERATION
OF BLOWER WITH HUMIDISTAT IN
COOLING.
6. CONNEECT W2 TO W3 ONLY IF USING
HEATER WITH 3 HEATER STAGES.
COMFORT CONTROL
VARIABLE SPEED
AIR HANDLER
From Dwg. No. B801077
12 18-GE12D1-8
Installer’s Guide
4TEE3F AIR HANDLERS WITH 2 STEP COOLING
STEP
Air Handler
Notes:
1. Be sure power supply agrees with equipment nameplate.
2. Power wiring and grounding of equipment must comply with local codes.
3. Low voltage wiring to be No. 18 AWG minimum conductor.
4. If outdoor thermostat (ODT) is not used, connect W2 to W3.
5. Be sure the jumper between “R” and “BK” is cut or removed
(See Note B below).
6. With “O” and “Y/Y2” energized, indoor fan is at 80% airflow.
7. With “O”, “Y/Y2” and “BK” energized, indoor fan is at 100% airflow.
8. When heaters are used, discard power leads with polarized plug PM-A and
connect 1-PF to mating plug in the heater control box as shown.
REQUIRED WIRING
• Refer to Field Hook-up Diagrams.
• 4TTX6/4TWX6/4A7A6/4A6H6 units require 80% airflow with “Y1”
(firststage), 100% airflow with “Y2” (second stage).
Note A – The installer must jumper at the LVTB “R” to “O”.
Note B – Cut/remove the factory installed “BK” jumper.
• Connect “Y1” from thermostat to “Y/Y2” at VS Air Handler to “Y1” at
Outdoor Unit.
• Connect “Y2” from thermostat to “BK” at VS Air Handler to “Y2” at
Outdoor Unit.
See Note B
4TEE3F AIR HANDLERS WITH 2 STEP HEAT PUMP
STEP
Notes:
1. ODT-B must be set lower than ODT-A.
2. If ODT-B is not used, connect A Jumper wire from W3 to W2. If ODT-A is
not used, connect a jumper wire from W2 to W1.
3. If electric heat does not have 3rd contactor (CH), connect a jumper wire
from W3 to W2. If electric heat does not have 2nd contactor (BH), connect a
jumper wire from W2 to W1.
4. X2 must be connected to variable speed air handler terminal W3, as
shown, for proper indoor air flow during the defrost cycle.
5. Connect only if used with applicable indoor thermostat.
6. When heaters are used, discard power leads with polarized plug PM-A and
connect 1-PF to mating plug in the heater control box as shown.
REQUIRED WIRING
• Refer to Field Hook-up Diagrams.
• 4TTX6/4TWX6/4A7A6/4A6H6 units require 80% airflow with “Y1”
(firststage), 100% airflow with “Y2” (second stage).
Note A – The installer must jumper at the LVTB “R” to “O”.
Note B – Cut/remove the factory installed “BK” jumper.
• Connect “Y1” from thermostat to “Y/Y2” at VS Air Handler to “Y1” at
Outdoor Unit.
• Connect “Y2” from thermostat to “BK” at VS Air Handler to “Y2” at
LEGEND
FACTORY WIRING
FIELD WIRING
Outdoor Unit.
18-GE12D1-8 13
Installer’s Guide
4TEE3F48 AIR HANDLERS WITH 2 STAGE COOLING, 2 STAGE HEAT
COMFORT CONTROL
VARIABLE SPEED
AIR HANDLER
2 STAGE
AIR CONDITIONER
NOTES:
1. BE SURE POWER SUPPLY AGREES
WITH EQUIPMENT NAMEPLATE.
2. POWER WIRING AND GROUNDING OF
EQUIPMENT MUST COMPLY WITH
LOCAL CODES.
3. LOW VOLTAGE WIRING TO BE NO. 18
AWG MINIMUM CONDUCTOR.
4. IF OUTDOOR THERMOSTAT (ODT) IS
NOT USED, CONNECT W2 TO W3.
5. WHEN HEATERS ARE USED, DISCARD
POWER LEADS WITH POLARIZED PLUG
PM-A AND CONNECT 1-PF TO MATING
PLUG IN THE HEATER CONTROL BOX
AS SHOWN.
4TEE3F48 AIR HANDLERS WITH 2 STAGE HEAT PUMP
HEAT PUMP
O.D. SECTION
(2 STAGE)
NOTES:
1. LOW VOLTAGE WIRING TO BE NO.
18 A.W.G. MINIMUM CONDUCTOR.
2. WHEN HEATERS ARE USED, DISCARD
POWER LEADS WITH POLARIZED PLUG
PM-A AND CONNECT 1-PF TO MATING
PLUG IN THE HEATER CONTROL BOX
AS SHOWN.
3. TERMINAL W2 WILL HAVE INTERNAL
CONNECTIONS ONLY IF 2ND
CONTACTOR IS USED BY THE HEATER
FOR CONTROLLING POWER TO
ELECTRIC HEAT ELEMENTS. IF
2ND (BH) CONTACTOR IS NOT USED,
THEN FIELD CONNECTIONS TO W2 CAN
BE OMITTED AS APPROPRIATE.
4. IF ODT IS NOT USED, THEN
CONNECT APPROPRIATE JUMPER
FROM W1 TO W2 TO W3 ON LVTB..
5. CONNEECT W2 TO W3 ONLY IF USING
HEATER WITH 3 HEATER STAGES.
COMFORT CONTROL
VARIABLE SPEED
AIR HANDLER
14 18-GE12D1-8
Installer’s Guide
OUTLINE DRAWING FOR 4TEE3F39, 48, 64
From Dwg. D802101 Rev. 9
18-GE12D1-8 15
Installer’s Guide
4TEE3F39, 48, 64 AIR HANDLERS DIMENSIONAL DATA
H
21.0"
4TEE3F39A, 48A, 48B & 60A
Are two piece cabinets
Model No. H W
4TEE3F39A1000A
4TEE3F48A1000A
4TEE3F48B1000A
4TEE3F64A1000A
16 18-GE12D1-8
57.90 23.50
W
Installer’s Guide
18-GE12D1-8 17
CHECKOUT PROCEDURES
After installation has been completed, it is recommended that the Air Handler be checked against the following
checklist.
1. Make sure power is “OFF” at power disconnect
switch ........................................................................ [ ]
2. Check all field wiring for tight connections. See that
grounding of unit is in accord with code ................. [ ]
3. Make sure unit suspension (if used) is secure and
that there are no tools or loose debris in, around or on
top of the unit ........................................................... [ ]
4. Check all duct outlets; they must be open and unre-
stricted ...................................................................... [ ]
5. Check drain lines and be sure all joints are tight
6. Make sure secondary drain pan is installed ..... [ ]
7. Check power supply for correct requirements per
unit nameplate ......................................................... [ ]
8. Check filters for proper size. Inform owner of
proper procedure for removal and reinstallation .... [ ]
9. Energize the system and carefully observe its op-
eration; make any necessary adjustment ............... [ ]
10. Instruct owner, engineer (if possible) on proper
operating procedure and leave Use and Care Manual
with owner ................................................................ [ ]
.................................................................................. [ ]
SUPPLEMENTARY HEATERS CHECKOUT PROCEDURES,
IF a heater is USED, see "limitations and recommendations"
to determine if the heater requires a SPECIAL CIRCUIT.
1. Be sure the disconnect switch is “OFF”, and safety label (if any) is attached ................................................ [ ]
2. Check on field wiring for tight connections and grounding according to codes ............................................... [ ]
3. Check circuit protection for proper size per nameplate specifications ........................................................... [ ]
4. Check control box panel — in place and secured .......................................................................................... [ ]
NOTE: OPERATION OF HEATERS MUST BE CHECKED DURING THE OPERATION CHECK OF THE TOTAL
SYSTEM.
Trane
6200 Troup Highway
Tyler, TX 75707
www.trane.com
For more information contact
your local dealer (distributor)
Since the manufacturer has a policy of continuous product and product data improvement, it reserves the
right to change design and specifications without notice.
06/10
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