American Standard 2/4TEC3F18A1000A Installer'S Manual Download Page 3

18-GE08D1-2

3

Installer’s Guide

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 and 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 installa-

tion.

15. These units are approved for draw-through

application only

NOTE:  Condensation may occur on the
surface of the air handler when installed in an
unconditioned location.When units are in-
stalled in unconditioned spaces, verify that all
electrical and refrigerant line penetrations on
the air handler are sealed completely.

NOTE: When installing the 4 and 5 ton air
handlers in attic or tight applications, the
cabinet may be disassembled into two sec-
tions.

B. UNIT INSTALLATION

UPFLOW

a.

For maximum efficiency

, the horizontal drip

tray should be removed. Tray removal requires
that the coil be removed by sliding the coil out
on the coil channel supports. The tray is
detached by removing the two screws at the
drain pan and the two screws holding the two
brackets at the top of the coil.

b. Remove the factory installed baffle assembly

from the apex of the coil by removing the 5/16"
hex head screws.

Replace this baffle with the factory supplied
narrow coil baffle using the screws removed
previously (See Figure 3).

c. Position unit on Pedestal or other suitable

foundation. 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.

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

DOWNFLOW BAFFLE KIT

X

X

7/8" GASKET

SCREWS TO 
REMOVE COIL

SCREWS TO 
REMOVE COIL

DISCARD HORIZONTAL
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 

(5TON ONLY)

2

4

Remove
and 
Discard

Replace
with 
Narrow
Baffle

FOR MAXIMUM EFFICIENCY ON

HORIZONTAL LEFT,

UPFLOW AND DOWNFLOW

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Summary of Contents for 2/4TEC3F18A1000A

Page 1: ...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...

Page 2: ...alled 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 provi...

Page 3: ...liding the coil out on the coil channel supports The tray is detached by removing the two screws at the drain pan and the two screws holding the two brackets at the top of the coil b Remove the factor...

Page 4: ...e factory installed filter should then be removed from the unit b To convert the unit to horizontal left front access slide the coil out on the coil channel supports and rotate the complete coil 180 d...

Page 5: ...unit Evacuation leak testing and brazing procedures are included in those instructions Read those instruc tions before starting installation of refrigerant lines NOTE Torque specification for TXV equ...

Page 6: ...LD FABRICATEDTRAP 2 MIN 2 MIN CAP OR PLUG Trap must be within 4 of air handler condensate drain connection Close as possible 7 8 3 4 NPT Secondary drain connection 3 4 NPT Primary drain connection 6 9...

Page 7: ...ower NOTE If air handler is used with or without a heater the 7 8 electrical entry hole as well as any other cabinet penetrations must be sealed air tight HOOK UP DIAGRAMS G CONTROL WIRING 1 Connect w...

Page 8: ...GE08D1 2 Installer s Guide 2 4TEC AIR HANDLERS WITH SINGLE SPEED COOLING UNIT 1 STAGE HEAT 2 4TEC AIR HANDLER WITH SINGLE SPEED COOLING UNIT 2 STAGE HEAT From Dwg 21B801083 Rev 1 From Dwg 21B801081 R...

Page 9: ...5 5 77 3 62 1 89 TXV NB 5 8 1 4 1 2 1 4 TEC3F24A 3 4 5 16 5 8 5 16 TEC3F30A 45 17 57 3 4 5 16 TEC3F36A 7 8 3 8 3 4 3 8 TEC3F42A 51 75 23 50 21 50 18 33 4 65 6 77 3 4 3 8 TEC3F48A TEC3F60A 57 90 23 50...

Page 10: ...F24A 17 00 39 00 43 00 21 50 2 4TEC3F30A 19 00 41 00 45 00 21 50 2 4TEC3F36A 19 00 41 00 45 00 21 50 2 4TEC3F42A 23 80 47 75 51 75 23 50 2 4TEC3F48A 31 20 58 75 57 90 23 50 2 4TEC3F55A 29 00 53 90 57...

Page 11: ...s instruction on page 12 2 Operational Procedure for the system installation can be found in the outdoor unit installer guide and will be compatible with this Air Handler CAUTION Cardboard packing mat...

Page 12: ...STEM 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 C...

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