08/
506149−01
*2P08*
*P506149-01*
Page 1
RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE
WARNING
Improper installation, adjustment, alteration, service or
maintenance can cause personal injury, loss of life, or
damage to property.
Installation and service must be performed by a licensed
professional installer (or equivalent) or a service agency.
CAUTION
Physical contact with metal edges and corners while
applying excessive force or rapid motion can result in
personal injury. Be aware of, and use caution when
working near these areas during installation or while
servicing this equipment.
IMPORTANT
The Clean Air Act of 1990 bans the intentional venting of
refrigerant (CFCs, HCFCs and HFCs) as of July 1, 1992.
Approved methods of recovery, recycling or reclaiming
must be followed. Fines and/or incarceration may be
levied for noncompliance.
WARNING
Electric Shock Hazard.
Can cause injury or death.
Foil-faced insulation has conductive characteristics sim-
ilar to metal. Be sure there are no electrical connections
within a ½" of the insulation. If the foil-faced insulation
comes in contact with electrical voltage, the foil could
provide a path for current to pass through to the outer
metal cabinet. While the current produced may not be
enough to trip existing electrical safety devices (e.g.
fuses or circuit breakers), the current can be enough to
cause an electric shock hazard that could cause person-
al injury or death.
INSTALLATION
INSTRUCTIONS
T−CLASS
E
TAA SERIES
AIR HANDLERS
6 TO 20 TONS
506149−01
04/11
Supersedes 8/09
Table of Contents
General 1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shipping and Packing List
1
. . . . . . . . . . . . . . . . . . . . . .
TAA072 and TAA090
Unit Dimensions
2
. . . . . . . . . . .
TAA120 and TAA150
Unit Dimensions
3
. . . . . . . . . . .
TAA180 and TAA240
Unit Dimensions
4
. . . . . . . . . . .
Unit Parts Arrangement
5
. . . . . . . . . . . . . . . . . . . . . . . .
Unit Control Box Components Arrangement
6
. . . . . . .
Typical Installation Support Method
6
. . . . . . . . . . . . . .
Requirements
7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Refrigerant Piping Connections
7
. . . . . . . . . . . . . . . . . .
Installing Condensate Drain
8
. . . . . . . . . . . . . . . . . . . . .
Duct Connections
10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sealing the Unit
11
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiring
11
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Blower Motor Belt Tensioning Adjustment
12
. . . . . . . . .
Pulley Alignment
13
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Volume Adjustment
13
. . . . . . . . . . . . . . . . . . . . . . . . .
Blower Data
14
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Blower Drive Components
15
. . . . . . . . . . . . . . . . . . . . . .
Blower Performance
16
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Repairing or Replacing Cabinet Insulation
20
. . . . . . . . .
Optional Accessories
20
. . . . . . . . . . . . . . . . . . . . . . . . . .
General
The TAA Series air handler units are designed for
installation with a matched remote outdoor unit that is
charged with HFC−410A refrigerant and optional
field−installed electric heat. The air handler units are for
indoor installation only and are designed for upflow or
horizontal applications.
Shipping and Packing List
Package contains the following:
1 Assembled blower coil unit
8 Supply and return air flanges which are stored inside
unit and are listed in table 2, on page 9.
1 Bag assembly that consists of the following:
S
One installation instruction
S
Two wiring diagrams (unit wiring and thermostat
connections)
S
Six plastic grommets (various sizes) for line set
knockouts.
Check package contents for shipping damage; if found,
immediately report damage to the last carrier.
Litho U.S.A.
