Lennox T?CLASS TAA SERIES User manual

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−CLASSETAA 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:
SOne installation instruction
STwo wiring diagrams (unit wiring and thermostat
connections)
SSix 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.

Page 2
506149−01 04/11
TAA072 and TAA090 Unit Dimensions − Inches (mm)
Model No.
CORNER WEIGHTS CENTER OF GRAVITY
AA BB CC DD EE FF
lbs. kg lbs. kg lbs. kg lbs. kg in. mm in. mm
TAA072 88 40 88 40 88 40 88 40 25−1/2 648 25−1/2 648
TAA090 88 40 88 40 88 40 88 40 25−1/2 648 25−1/2 648
SUPPLY END VIEW
INLET VIEW DRIVE END VIEW
SUCTION (VAPOR) LINE
INLETS / KNOCKOUTS (2)
LIQUID LINE
INLETS / KNOCKOUTS (2)
AIR FILTERS
INDOOR
COIL
BLOWER
CONTROL
BOX
CONDENSATE
DRAIN (Up−flow)
SIDE RETURN
AIR OPENING
SUPPLY AIR
OPENING
AIR FLOW
U
P−FLOW POSITION SHOWN
29−1/2
(749)
18−5/8
(473)
1−3/8
(35)
51−1/4
(1302)
51−1/4
(1302)
54−3/4
(1391)
2
(51)
2
(51)
26−1/4
(667)
29−1/2
(749)
3
(76)
3
(76)
1−7/8
(48)
11−7/8
(302)
14
(356)
16−1/2
(419) 18−5/8
(473)
AIR FLOW
CONTROL BOX
(Alternate Location)
30
(762)
10−3/4
(267)
20−5/8
(524)
25−3/4
(654)
16−7/8
(429)
1−3/8
(35)
18−5/8
(473)
20−5/8 (524)
1−5/8
(41)
CONDENSATE
DRAIN
(Horizontal)
AIR FLOW
CONTROL
BOX
CONTROL BOX
(Alternate Location)
1 (25)
TYP.
20−5/8
(524)
30 (762)
1 (25)
TYP.
SUPPLY AIR FLANGES
(Furnished with Unit,
Field Installed)
RETURN AIR FLANGES
(Furnished with Unit,
Field Installed)
RETURN AIR FLANGES
(Furnished with Unit,
Field Installed)
NOTE:
072 models only use one Suction and Liquid
Line. Cabinet has knockouts for two. Either
opening may be used.
RETURN AIR OPENING
(Bottom or Horizontal Applications)
AA
BB CC
DD
FF
EE
CENTER OF
GRAVITY
RETURN AIR
OPENING
(Bottom or Horizontal Applications)
POWER
ENTRY
HOLES

Page 3
TAA SERIES
TAA120 and TAA150 Dimensions − Inches (mm)
Model No.
CORNER WEIGHTS CENTER OF GRAVITY
AA BB CC DD EE FF
lbs. kg lbs. kg lbs. kg lbs. kg in. mm in. mm
TAA120−150 126 57 101 46 101 46 126 57 33−1/2 851 24−1/2 622
SUCTION (VAPOR) LINE
INLETS/KNOCKOUTS (2)
LIQUID LINE
INLETS/KNOCKOUTS (2)
AIR FILTERS
INDOOR
COIL
BLOWER
CONTROL
BOX
AIR FLOW
54−3/4
(1391)
2
(51)
26−1/4
(667)
29−1/2
(749)
3
(76)
3
(76)
1−7/8
(48)
11−7/8
(302)
14
(356)
16−1/2
(419)
18−5/8
(473)
AIR FLOW
1−3/8
(35) 18−5/8
(473)
20−5/8 (524)
1−5/8
(41)
CONDENSATE
DRAIN
(Horizontal)
AIR FLOW
SUPPLY END VIEW
INLET VIEW DRIVE END VIEW
SUPPLY AIR
OPENING
29−1/2
(749)
20−5/8
(524)
67−1/4
(1708)
11−1/8
(283)
45
(1143)
2
(51)
67−1/4
(1708)
25−3/4
(654)
24−7/8
(429)
1 (25)
TYP.
18−5/8
(473)
1−3/8
(35)
CONTROL
BOX
CONDENSATE
DRAIN (Up−Flow)
CONTROL BOX
(Alternate Location)
20−5/8
(524)
SUPPLY AIR FLANGES
(Furnished with Unit,
Field Installed)
RETURN AIR FLANGES
(Furnished with Unit, Field Installed)
45 (1143)
1 (25)
TYP.
RETURN AIR FLANGES
(Furnished with Unit,
Field Installed)
CONTROL BOX
(Alternate Location)
SIDE RETURN
AIR OPENING
UP−FLOW POSITION
SHOWN
POWER
ENTRY
HOLES
FF
EE
CENTER OF
GRAVITY
AA
BB CC
DD
RETURN AIR OPENING
(Bottom or Horizontal Applications)
RETURN AIR
OPENING
(Bottom or Horizontal Applications)

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506149−01 04/11
TAA 180 and TAA 240 Unit Dimensions − Inches (mm)
Model No.
CORNER WEIGHTS CENTER OF GRAVITY
AA BB CC DD EE FF
lbs. kg lbs. kg lbs. kg lbs. kg in. mm in. mm
TAA180−240 110 50 99 45 116 53 130 59 52 1321 25−3/4 654
SUPPLY END VIEW
INLET VIEW DRIVE END VIEW
SUPPLY AIR
OPENING
29−1/2
(749)
20−5/8
(524)
2
(51)
96−1/4
(2445)
96−1/4
(2445)
18−1/2
(470)
59−1/4
(1505)
51−5/8
(1311)
27−1/2
(699)
SUCTION (VAPOR) LINE
INLETS/KNOCKOUTS (2)
LIQUID LINE INLETS/
KNOCKOUTS (2)
AIR FILTERS
INDOOR
COIL
BLOWER
CONTROL
BOX
AIR FLOW
54−3/4
(1391)
2
(51)
26−1/4
(667)
29−1/2
(749)
3
(76)
3
(76)
1−7/8
(48)
11−7/8
(302)
14
(356)
16−1/2
(419)
18−5/8
(473)
AIR FLOW
1−3/8
(35)
18−5/8
(473)
20−5/8 (524)
1−5/8
(41)
CONDENSATE
DRAIN
(Horizontal)
AIR FLOW
1 (25)
TYP.
18−5/8
(473)
1−3/8
(35)
CONTROL
BOX
59−1/4 (1505)
20−5/8
(524)
CONTROL BOX
(Alternate Location)
SUPPLY AIR
FLANGES
(Furnished with
Unit, Field
Installed) CONTROL BOX
(Alternate Location)
CONDENSATE
DRAIN (Up−Flow)
RETURN AIR FLANGES
(Furnished with Unit, Field Installed)
RETURN AIR FLANGES
(Furnished with Unit,
Field Installed)
1 (25)
TYP.
SIDE RETURN
AIR OPENING
UP−FLOW POSITION SHOWN
POWER
ENTRY
HOLES
RETURN AIR
OPENING
(Bottom or Horizontal Applications)
RETURN AIR OPENING
(Bottom or Horizontal Applications)
FF
EE
CENTER OF
GRAVITY
AA
BB CC
DD

Page 5
TAA SERIES
Unit Parts Arrangement
All TAA Series
BLOWER
CONTROL BOX
BLOWER MOTOR
BLOWER BELT
BELT TENSIONER
CONDENSATE DRAIN
COIL
ADJUSTABLE PULLEY
VAPOR LINES
LIQUID LINES
072−090−120−150 MODELS
HORIZONTAL POSITION
SHOWN
CONDENSATE
DRAIN POSITION
FOR UPFLOW))
BLOWERS
CONTROL BOX
BLOWER MOTOR
BLOWER BELT
BELT TENSIONER
CONDENSATE DRAIN (HORIZONTAL)
COIL
ADJUSTABLE PULLEY
VAPOR LINES
LIQUID LINES
180−240 MODELS
HORIZONTAL POSITION
SHOWN
CONDENSATE DRAIN
POSITION FOR
UPFLOW))

Page 6
506149−01 04/11
Unit Control Box Components Arrangement
All TAA Series
Y, G, AND J VOLTAGE WIRING M VOLTAGE OVERLOAD WIRING
THREE−PHASE THERMAL
OVERLOAD RELAY (S42)
CONTACTOR
(K3−1) GROUND
LUG
TERMINAL
STRIP (TB1)
BLOWER
RELAY (K43) CONTROL PANEL
Typical Installation Support Method
ELECTRIC or HOT
WATER SECTION
TAA AIR HANDLER
(HORIZONTAL POSITION)
4 (102) TAA072, 090, 120, 150
10 (254) TAA180, 240
4 (102) TAA072, 090, 120,150
10 (254) TAA180, 240
SUPPORT RODS (4)
RECOMMENDED
SUPPORT RAILS
NOTES:
1. Ensure support rails do not interfere with ducting, plumbing or
electrical connections.
2. When hot water or electric heat section is installed, additional
support underneath these accessories will be required.
3. Support rods and rails are field supplied.

Page 7
TAA SERIES
Requirements
These instructions are intended as a general guide and do
not supersede local or national codes in any way. Consult
authorities having jurisdiction before installation.
In addition to conforming to manufacturer’s installation
instructions and local municipal building codes, installation
of Lennox air handler units (with or without optional electric
heat), shall conform with the following National Fire
Protection Association (NFPA) standards:
SNFPA No. 90A  Standard for Installation of Air
Conditioning and Ventilation Systems
SNFPA No. 90B  Standard for Installation of
Residence Type Warm Air Heating and Air
Conditioning Systems
This unit is approved for installation clearance to
combustible material as stated on the unit rating plate.
Accessibility and service clearances must take
precedence over combustible material clearances.
Refrigerant Piping Connections
TAA series evaporator coils have a holding charge of
nitrogen or dry air. If there is no pressure when the rubber
plugs are removed, check the coil for leaks before
installing. After installation, pull a vacuum on the coil and
line set before releasing the outdoor unit charge into the
system.
Table 1. TAA Series Refrigerant Connections
Size/Quantity
Models Liquid Line Vapor/ Suction Line
−072S4S 5/8" (1) 1−1/8" (1)
−090S4D, −120S4D,
and −150S4D 5/8" (2) 7/8 (2)
−180S4D, and
−240S4D 5/8" (2) 1−1/8" (2)
For single−stage applications, pipe the upper and lower
evaporator circuits together (does not apply to TAA072).
For two−stage applications, pipe the stage 1 system to the
lower part of the evaporator and the stage 2 system to the
upper part of the evaporator. Table 1 lists piping connection
sizes at the evaporator coil. The line set between the TAA
air handler and outdoor unit should be sized per the
Lennox Refrigerant Piping Guidelines.
4. Route piping through either side of the unit.
5. Remove the knockouts from the piping mullion. Install
the rubber grommets into the piping holes.
6. Remove the plugs from the vapor and liquid line stubs.
7. Wrap a wet rag around each TXV before brazing to
avoid overheating the valve.
8. Remove protective coil cover between TXVs and
evaporator coil as illustrated in figure 1.
REMOVE TAPES
PROTECTIVE COIL COVER BETWEEN TXV(S)
AND EVAPORATOR COIL.
PROTECTIVE COIL COVER BETWEEN TXV(S)
AND EVAPORATOR COIL MUST BE REMOVED
BEFORE UNIT START−UP.
Figure 1. Protective Coil Cover Removal

Page 8
506149−01 04/11
Installing Condensate Drain
This sections provides information concerning drain pan
orientation and condensate drain installation
DRAIN PAN ORIENTATION
This unit has the drain pan shipped in the upflow position. If
the unit is installed for horizontal airflow, the drain pan must
be repositioned as illustrated in figure 2.
Before connecting drain line, check drain hole to verify that
drain opening is fully open and free of any debris. Also
check to make sure that no debris has fallen into the drain
pan during installation that may plug up the drain opening.
CONDENSATE DRAIN INSTALLATION
Connect main condensate drain (one inch N.P.T.) and
route downward to an open drain or sump. The drain pan is
made with a glass reinforced engineered plastic capable of
withstanding typical joint torque but can be damaged with
excessive force. Tighten pipe nipple hand tight and turn an
additional quarter turn. Do not connect drain to a closed
waste system. See figure 3 for typical condensate trap
configuration.
UPFLOW POSITION ILLUSTRATED
DRAIN PAN
BLANK
PLATE
DRAIN PLATE
A
BDRAIN
PLATE
C
D
DRAIN
PLATE
E
FRONT OF UNIT
REAR OF UNIT
REVERSIBLE CONDENSATE DRAIN PAN (UPFLOW POSITION)
1. Remove the four screws securing drain plate A.
2. Pull drain pan Cand reverse 180º as illustrated by Fand slide
back into position Aof unit.
3. Secure drain pan Cby reinstalling drain plate Aand securing
with the four screws.
FOUR
SCREWS
HORIZONTAL POSITION CONDENSATE DRAIN PAN
INSTALLATION
1. Remove four screws securing drain plates
A and B then remove plates.
2. Remove four screws securing blank plates
D and E then remove plates.
3. Move drain plate Bto position E and secure
with four screws.
4. Pull drain pan Cand slide into position D.
5. Move drain plate Ato position Dand secure
with four screws.
6. Move blank plates Dand Eto positions A
and Band secure with four screws.
ROTATE 180º
F
DO NOT NEED TO REMOVE
BOTTOM CENTER SCREW.
Figure 2. Condensate Drain Configurations

Page 9
TAA SERIES
ABOVE
FINISHED
SPACE?
INSTALL OPTIONAL FLOAT SWITCH. WIRE
LOW VOLTAGE TO SHUT DOWN
COMPRESSOR PER INSTRUCTIONS.
NO
YES
CLEAN OUT VENT
PRESS IN
(DO NOT GLUE)
VENT MUST EXTEND ABOVE HEIGHT OF COIL DRAIN PAN BY
TWO INCHES (51MM)
1 X 1 X 1 TEE
WITH PLUG
DRAIN
OPTIONAL
SAFETY
PAN
DRAIN PAN
WHEN A COIL IS LOCATED ABOVE A FINISHED
SPACE, A 1" (25.4 MM) OVERFLOW DRAIN LINE MUST
BE INSTALLED AND CONNECTED TO A SAFETY PAN.
EITHER A ONE INCH P− OR J−TRAPS (P−TRAP ARE REQUIRED ON ALL DRAIN
LINES. TRAPS MUST BE DEEP ENOUGH TO OFFSET MAXIMUM STATIC
DIFFERENCES (GENERALLY, TWO INCHES (51MM).
TO APPROVED DRAIN
DRAIN LINE SHOULD SLOPE A
MINIMUM OF ONE INCH PER 10
FEET (25MM PER 3 METERS)
NOTE  WHEN A AIR HANDLER IS LOCATED ABOVE A FINISHED SPACE,
SECONDARY DRAIN PAN MUST HAVE A LARGER FOOTPRINT THAN THE AIR
HANDLER.
NOTE  MAY BE REQUIRED BY
LOCAL CODES.
Figure 3. Typical Condensate Drain Connections
Table 2. TAA Duct Flange Lengths − inches (mm)
Models TAA072/090 TAA120/150 TAA180/240
Return air flanges  Common (2) 20−1/2" (521) 20−1/2" (521) 20−1/2" (521)
Return air flanges  Long (2) 30" (762) 45" (1143) 59−3/8" (1508)
Discharge air flanges  Common (2) 18−1/2" (470) 18−1/2" (470) 18−1/2" (470)
Discharge air flanges  Long (2) 25−5/8" (651) 25−5/8" (651) 51−3/8" (1305)

Page 10
506149−01 04/11
Duct Connections
SIDE RETURN AIR COVER PLATE (SHIPPED
FROM FACTORY INSTALLED)
NOTE  SIDE RETURN AIR COVER PLATE CAN BE
RELOCATED TO BOTTOM RETURN AIR LOCATION.
UNIT IS SHIPPED FOR INSTALLATION IN AN UPFLOW OR HORIZONTAL
APPLICATION WITH BOTTOM (OR END) RETURN AIR. IF UNIT WILL BE USED IN
AN UPFLOW APPLICATION WITH SIDE RETURN AIR, REMOVE SCREWS THAT
SECURE SIDE COVER PLATE ON SIDE RETURN AIR OPENING. USE EXISTING
SCREWS TO RE−SECURE COVER PLATE OVER BOTTOM OPENING.
ALIGN PROVIDED FLANGES WITH PRE−DRILLED HOLES IN
BOTH RETURN AND SUPPLY AIR LOCATIONS AND SECURE
WITH FIELD−PROVIDED SHEET METAL SCREWS (#10−16 X 5/8").
SUPPLY AIR
TOP VIEW
SIDE VIEW
SIDE VIEW
072−090−120−150 MODELS
180−240 MODELS
IF A RETURN AIR PLENUM IS NOT USED, INSTALLATION CODES MAY LIMIT
INSTALLATION TO SINGLE−STORY STRUCTURES ONLY. DO NOT INSTALL THE
SUPPLY AIR PLENUM WITHIN 18 INCHES (457 MM) OF THE BLOWER ACCESS
PANEL.
NOTE  Use flexible duct to eliminate vibration.
NOTE  ON DUAL−BLOWER UNITS, FLANGES
ENCOMPASS BOTH OPENINGS.
SUPPLY AND RETURN AIR FLANGES ARE
PROVIDED AND ARE STORED INSIDE UNIT FOR
SHIPPING. SEE TABLE 2 FOR FLANGE
LENGTHS.
SIDE RETURN AIR COVER PLATE
RELOCATION
INSTALLATION OF FLANGES
Figure 4. Cover Plate Relocation and Installation of Flanges

Page 11
TAA SERIES
Sealing the Unit
Seal the unit so that warm air is not allowed into the
cabinet. Warm air introduces moisture, which results in
water blow−off problems. This is especially important when
the unit is installed in an unconditioned area.
WARNING
There must be an airtight seal between the bottom of the
air handler and the return air plenum. Use fiberglass
sealing strips, caulking, or equivalent sealing method
between the plenum and the air handler cabinet to
ensure a tight seal. Return air must not be drawn from a
room where any gas−fueled appliance (i.e., water
heater), or carbon monoxide−producing device (i.e.,
wood fireplace) is installed.
Wiring
WARNING
Run 24V Class II wiring only through specified low volt-
age opening. Run line voltage wiring only through speci-
fied high voltage opening. Do not combine voltage in one
opening.
NATIONAL AND LOCAL CODE RESTRICTIONS
Wiring must conform to the current National Electric Code
ANSI/NFPA No. 70, or Canadian Electric Code Part I, CSA
Standard C22.1, and local building codes. Refer to
following wiring diagrams. See unit nameplate for
minimum circuit ampacity and maximum over−current
protection size.
Select the proper supply circuit conductors in
accordance with tables 310−16 and 310−17 in the
National Electric Code, ANSI/NFPA No. 70 or tables 1
through 4 in the Canadian Electric Code, Part I, CSA
Standard C22.1.
Separate openings have been provided for 24V low
voltage and line voltage. Refer to the dimension illustration
of specific location.
WIRING DIAGRAMS
Two wiring diagrams are included in the bag assembly and
are for the following:
SUnit wiring diagram
SThermostat connections
Both diagrams are to be installed on outside cabinet in a
convenient location
CAUTION
USE COPPER CONDUCTORS ONLY.
1
Figure 5. Typical Wiring Diagram

Page 12
506149−01 04/11
1
Figure 6. Typical Control Wiring used with TSA and TPA Outdoor Units.
Blower Motor Belt Tensioning Adjustment
PLACE BELT OVER ALL THREE
PULLEYS.
USING A 15/16" WRENCH ON
THE TENSIONER BODY NUT,
APPLY FORCE UNTIL MARKS
ALIGN AS SHOWN.
WHILE HOLDING THE TENSIONER IN
THIS POSITION, TIGHTEN THE
MOUNTING BOLT TO 23 FT−LBS USING A
9/16" WRENCH.
1
2
3
BELT TENSIONER
Figure 7. Typical Blower Belt Tensioner Adjustment Procedure

Page 13
TAA SERIES
Pulley Alignment
BELT
BLOWER
PULLEY
MOTOR
PULLEY
NOT ALIGNED
ALIGNED
AFTER ANY PULLEY ADJUSTMENT OR CHANGE OUT, PULLEYS
SHOULD BE ALIGNED WITH THE TENSIONER AS SHOWN.
TENSIONER
Figure 8. Typical Pulley Alignment
Air Volume Adjustment
FIXED
PULLEY
BLOWER
BELT
ADJUSTABLE
PULLEY
ADJUSTABLE PULLEY
ALLEN SCREW
RUN THE BLOWER WITHOUT A COOLING DEMAND.
USE THE STATIC PRESSURE AND REV/MIN READINGS TO DETERMINE
THE UNIT’S AIR VOLUME (SEE APPLICABLE BLOWER PERFORMANCE
TABLES).
MEASURE THE INDOOR BLOWER MOTOR’S RPM.
MEASURE THE STATIC PRESSURE EXTERNAL TO THE UNIT.
NOTE  THE INDOOR COIL MUST BE DRY AND THE AIR
FILTERS MUST BE IN PLACE WHEN THE FOLLOWING
MEASUREMENTS ARE TAKEN.
LOOSEN THE ALLEN SCREW ON THE ADJUSTABLE PULLEY.
TURN THE ADJUSTABLE SHEAVE CLOCKWISE TO INCREASE THE AIR
VOLUME OR COUNTERCLOCKWISE TO DECREASE THE AIR VOLUME.
ONCE THE DESIRED AIR VOLUME HAS BEEN ACHIEVED, TIGHTEN THE
ALLEN SCREW.
1
2
3
4
5
6
7
Figure 9. Typical Air Volume Adjustment Procedure

Page 14
506149−01 04/11
Blower Data
BLOWER DRIVE SPECIFICATIONS (60Hz)
Static RPM Range Motor HP 072 090 120 150 180 240
Nominal Maximum
Low 552 − 782 1.5 1.72 f− − − − − − − − − − − − − − −
Standard 690 − 936 1.5 1.72 S− − − − − − − − − − − − − − −
High 906 − 1121 2 2.3 f− − − − − − − − − − − − − − −
Low 644 − 874 2 2.3 − − − f− − − − − − − − − − − −
Standard 782 − 1012 2 2.3 − − − S− − − − − − − − − − − −
High 966 − 1196 3 3.45 − − − f− − − − − − − − − − − −
Low 690 − 893 2 2.3 − − − − − − f− − − − − − − − −
Standard 852 − 1055 2 2.3 − − − − − − S− − − − − − − − −
High 986 − 1232 3 3.45 − − − − − − f− − − − − − − − −
Low 782 − 1012 3 3.45 − − − − − − − − − f− − − − − −
Standard 920 − 1150 3 3.45 − − − − − − − − − S− − − − − −
High 1134 − 1380 5 5.75 − − − − − − − − − f− − − − − −
Low 591 − 838 3 3.45 − − − − − − − − − − − − f− − −
Standard 782 − 1012 5 5.75 − − − − − − − − − − − − S− − −
High 920 − 1150 5 5.75 − − − − − − − − − − − − f− − −
Low 679 − 863 5 5.75 − − − − − − − − − − − − − − − f
Standard 808 − 1026 7.5 8.63 − − − − − − − − − − − − − − − S
High 1002 − 1282 7.5 8.63 − − − − − − − − − − − − − − − f
NOTE − Using total air volume and system static pressure requirements, determine from blower performance tables rpm and motor horsepower required.
Maximum usable horsepower of motors furnished by Lennox are shown. In Canada, nominal motor horsepower is also maximum usable motor
horsepower. If motors of comparable horsepower are used, be sure to keep within the service factor limitations outlined on the motor nameplate.
S − Factory installed standard
f− Factory Installed with extended lead time.
BLOWER DRIVE SPECIFICATIONS (50Hz)
Static Rev/min
Range
Drive
Kit
Motor kW Motor HP 072 090 120 150 180 240
Nominal Maximum Nominal Maximum
Low 541 − 735 4 1.5 1.7 2 2.3 f− − − − − − − − − − − − − − −
Standard 704 − 911 18 1.5 1.7 2 2.3 S− − − − − − − − − − − − − − −
High 889 − 1083 19 1.5 1.7 2 2.3 f− − − − − − − − − − − − − − −
Low 616 − 798 20 1.5 1.7 2 2.3 − − − f− − − − − − − − − − − −
Standard 773 − 967 10 1.5 1.7 2 2.3 − − − S− − − − − − − − − − − −
High 953 − 1160 11 2.2 2.6 3 3.45 − − − f− − − − − − − − − − − −
Low 657 − 851 5 1.5 1.7 2 2.3 − − − − − − f− − − − − − − − −
Standard 812 − 1005 21 1.5 1.7 2 2.3 − − − − − − S− − − − − − − − −
High 996 − 1212 22 2.2 2.6 3 3.45 − − − − − − f− − − − − − − − −
Low 785 − 955 23 2.2 2.6 3 3.45 − − − − − − − − − f− − − − − −
Standard 953 − 1160 11 2.2 2.6 3 3.45 − − − − − − − − − S− − − − − −
High 1125 − 1342 24 3.5 4.3 5 5.75 − − − − − − − − − f− − − − − −
Low 616 − 798 25 2.2 2.6 3 3.45 − − − − − − − − − − − − f− − −
Standard 773 − 967 26 3.5 4.3 5 5.75 − − − − − − − − − − − − S− − −
High 953 − 1160 27 3.5 4.0 5 5.75 − − − − − − − − − − − − f− − −
Low 679 − 863 14 3.5 4.0 5 5.75 − − − − − − − − − − − − − − − f
Standard 843 − 1078 17 5.6 6.4 7.5 8.62 − − − − − − − − − − − − − − − S
High 1078 − 1274 28 5.6 6.4 7.5 8.62 − − − − − − − − − − − − − − − f
NOTE − Using total air volume and system static pressure requirements, determine from blower performance tables Rev/min and motor horsepower required.
Maximum usable horsepower of motors furnished by Lennox are shown. If motors of comparable horsepower are used, be sure to keep within the service factor limitations
outlined on the motor nameplate.
S − Factory installed standard
f− Factory Installed with extended lead time.

Page 15
TAA SERIES
Blower Drive Components
BLOWER DRIVE COMPONENTS, 60 HZ
Unit Static Adjustable Sheave Fixed Sheave Belt Bushing Key
OEM No Manuf No OEM No Manuf No OEM No Manuf No OEM No Manuf No OEM No Dimensions
TAA072 Low 79J0301 1VP40 X 7/8 49K4101 BK85 X 1 100245−25 AX54 − − − −
Standard P−8−1488 1VP44 X 7/8 100788−03 BK80H 100245−24 AX53 100073−04 H−1 LB−21259 1/4 X 1/4 X1−1/2
High 80K5501 1VP60 X 7/8 P−8−9659 BK90 X 1 100245−28 AX57 − − LB−21259 1/4 X 1/4 X1−1/2
TAA090 Low P−8−1488 1VP44 X 7/8 49K4101 BK85 X 1 100245−25 AX54 − − − −
Standard P−8−2187 1VP50 X 7/8 49K4101 BK85 X 1 100245−26 AX55 − − − −
High 80K5501 1VP60 X 7/8 49K4101 BK85 X 1 100245−28 AX57 − − − −
TAA120 Low P−8−2187 1VP50 X 7/8 79J2701 BK95 X 1 100245−28 AX57 − − − −
Standard 80K5501 1VP60 X 7/8 79J2701 BK95 X 1 100245−28 AX57 − − − −
High P−8−1494 1VP56 X 7/8 100788−03 BK80H 100245−25 AX54 100073−04 H−1 LB−21259 1/4 X 1/4 X1−1/2
TAA150 Low P−8−2187 1VP50 X 7/8 49K4101 BK85 X 1 100245−26 AX55 − − − −
Standard P−8−1494 1VP56 X 7/8 49K4101 BK85 X 1 100245−26 AX55 − − − −
High P−8−2237 1VP62 X 1−1/8 100788−03 BK80H 100245−27 AX56 100073−04 H−1 LB−21259 1/4 X 1/4 X1−1/2
TAA180 Low 79J0301 1VP40 X 7/8 100788−03 BK80H 49K3901 BX54 49M6201 H−1−7/16 LB−21259 1/4 X 1/4 X1−1/2
Standard P−8−1977 1VP50 X 1−1/8 100244−09 BK85 X 1−7/16 78L5301 BX57 − − LB−20769 3/8 X 3/8 X 1−3/4
High 100239−01 1VP56 X 1−1/8 100244−09 BK85 X 1−7/16 100245−07 BX58 − − LB−20769 3/8 X 3/8 X 1−3/4
TAA240 Low P−8−1977 1VP50 X 1−1/8 39L1301 BK100 X 1−7/16 100245−10 BX60 − − LB−20769 3/8 X 3/8 X 1−3/4
Standard 78L5501 1VP60 X 1−3/8 100788−05 BK100H 93J9801 BX61 49M6201 H−1−7/16 − −
High 78L5501 1VP60 X 1−3/8 100788−03 BK80H 100245−07 BX58 49M6201 H−1−7/16 − −
BLOWER DRIVE COMPONENTS, 50 HZ
Unit Static Adjustable Sheave Fixed Sheave Belt Bushing Key
OEM No Manuf No OEM No Manuf No OEM No Manuf No OEM No Manuf No OEM No Manuf No
TAA072 Low P−8−1488 1VP44 X 7/8 49K4101 BK85 X 1 100245−25 AX54 − − − −
Standard P−8−2187 1VP50 X 7/8 100788−03 BK80H 100245−25 AX54 100073−04 H−1 LB−21259 1/4 X 1/4 X1−1/2
High P−8−1491 1VP62 X 7/8 49K4101 BK85 X 1 93J9801 BX61 − − − −
TAA090 Low P−8−2187 1VP50 X 7/8 P−8−9659 BK90 X 1 100245−27 AX56 − − − −
Standard P−8−1494 1VP56 X 7/8 49K4101 BK85 X 1 100245−26 AX55 − − − −
High P−8−2237 1VP62 X 1−1/8 100788−03 BK80H 100245−27 AX56 100073−04 H−1 LB−21259 1/4 X 1/4 X1−1/2
TAA120 Low P−8−2187 1VP50 X 7/8 49K4101 BK85 X 1 100245−26 AX55 − − − −
Standard 80K5501 1VP60 X 7/8 49K4101 BK85 X 1 100245−27 AX56 − − − −
High P−8−2237 1VP62 X 1−1/8 49K4101 BK85 X 1 100245−26 AX55 − − LB−21259 1/4 X 1/4 X1−1/2
TAA150 Low P−8−2237 1VP62 X 1−1/8 79J2701 BK95 X 1 100245−28 AX57 − − LB−21259 1/4 X 1/4 X1−1/2
Standard P−8−2237 1VP62 X 1−1/8 100788−03 BK80H 100245−27 AX56 100073−04 H−1 LB−21259 1/4 X 1/4 X1−1/2
High P−8−1493 1VP68 X 1−1/8 49K4001 BK77 X 1 100245−27 AX56 − − LB−21259 1/4 X 1/4 X1−1/2
TAA180 Low P−8−1977 1VP50 X 1−1/8 100788−04 BK90H 100245−07 BX58 49M6201 H−1−7/16 − −
Standard P−8−1492 1VP56 X 1−1/8 100244−09 BK85 X 1−7/16 100245−07 BX58 − − LB−20769 3/8 X 3/8 X 1−3/4
High P−8−2237 1VP62 X 1−1/8 100788−03 BK80H 100245−07 BX58 49M6201 H−1−7/16 − −
TAA240 Low P−8−1977 1VP50 X 1−1/8 100244−09 BK85 X 1−7/16 78L5301 BX57 − − LB−20769 3/8 X 3/8 X 1−3/4
Standard 78L5501 1VP60 X 1−3/8 100788−03 BK80H 100245−07 BX58 49M6201 H−1−7/16 − −
High 100239−04 1VP68 X 1−3/8 100788−03 BK80H 59A5001 BX59 49M6201 H−1−7/16 − −

Page 16
506149−01 04/11
Blower Performance
TA 072 BLOWER PERFORMANCE
Air
Volume
cfm
STATIC PRESSURE EXTERNAL TO UNIT  Inches Water Gauge
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1900 428 0.57 479 0.66 531 0.74 581 0.81 629 0.88 675 0.94 718 1.01 758 1.07
2000 434 0.59 486 0.69 538 0.77 589 0.84 637 0.91 682 0.98 725 1.05 765 1.11
2100 441 0.62 493 0.72 545 0.8 596 0.88 644 0.95 689 1.02 732 1.09 771 1.15
2200 448 0.65 501 0.75 553 0.83 604 0.91 652 0.98 696 1.06 738 1.13 778 1.2
2300 456 0.68 508 0.78 561 0.86 612 0.94 659 1.02 704 1.1 746 1.17 785 1.24
2400 463 0.71 516 0.81 569 0.9 620 0.98 667 1.06 711 1.14 753 1.22 792 1.29
2500 470 0.74 524 0.84 578 0.94 629 1.02 675 1.1 719 1.19 760 1.27 798 1.34
2600 478 0.77 533 0.88 587 0.98 637 1.06 683 1.15 726 1.24 767 1.32 805 1.39
2700 486 0.81 542 0.92 596 1.02 646 1.11 692 1.2 734 1.29 775 1.37 812 1.45
2800 495 0.85 552 0.96 606 1.07 655 1.16 700 1.25 742 1.34 782 1.42 819 1.5
2900 504 0.89 561 1.01 616 1.11 665 1.2 708 1.3 750 1.39 789 1.48 826 1.56
3000 514 0.93 572 1.05 626 1.16 674 1.26 717 1.35 758 1.45 797 1.54 833 1.62
Air
Volume
cfm
STATIC PRESSURE EXTERNAL TO UNIT  Inches Water Gauge
0.9 1 1.1 1.2 1.3 1.4 1.5
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1900 796 1.13 830 1.19 862 1.25 893 1.32 922 1.39 950 1.46 978 1.54
2000 802 1.17 836 1.23 868 1.3 898 1.37 928 1.44 956 1.52 983 1.6
2100 808 1.22 842 1.28 874 1.35 904 1.42 933 1.5 961 1.58 988 1.66
2200 814 1.26 848 1.33 879 1.4 909 1.48 938 1.56 966 1.64 993 1.73
2300 820 1.31 854 1.38 885 1.46 915 1.53 943 1.62 971 1.7 998 1.79
2400 827 1.36 860 1.43 891 1.51 920 1.59 949 1.68 976 1.77 1003 1.86
2500 833 1.41 866 1.49 897 1.57 926 1.66 954 1.75 981 1.84 1008 1.93
2600 840 1.47 872 1.55 902 1.63 932 1.72 960 1.81 987 1.91 1013 2.01
2700 846 1.53 878 1.61 908 1.7 937 1.79 965 1.88 992 1.98 1018 2.08
2800 853 1.58 884 1.67 914 1.76 943 1.86 970 1.96 997 2.06 1023 2.16
2900 859 1.65 890 1.74 920 1.83 948 1.93 975 2.03 1002 2.14 1028 2.24
3000 866 1.71 896 1.8 926 1.9 954 2 981 2.11 1007 2.22 1032 2.33
TA 090 BLOWER PERFORMANCE
Air
Volume
cfm
STATIC PRESSURE EXTERNAL TO UNIT  Inches Water Gauge
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
2400 508 0.79 565 0.89 619 0.98 667 1.06 710 1.14 750 1.23 787 1.3 822 1.38
2500 519 0.83 577 0.94 630 1.02 677 1.1 720 1.19 759 1.28 796 1.36 830 1.43
2600 531 0.87 588 0.98 641 1.07 688 1.16 729 1.25 769 1.34 805 1.42 839 1.49
2700 543 0.92 600 1.03 653 1.12 698 1.21 739 1.31 778 1.4 814 1.48 848 1.55
2800 555 0.97 613 1.08 664 1.17 709 1.27 749 1.37 788 1.46 824 1.54 857 1.62
2900 568 1.02 625 1.13 676 1.22 719 1.32 759 1.43 797 1.52 833 1.6 866 1.68
3000 581 1.07 638 1.18 687 1.28 730 1.39 769 1.49 807 1.58 842 1.67 875 1.75
3100 595 1.12 651 1.24 699 1.34 740 1.45 779 1.56 817 1.65 852 1.73 883 1.82
3200 609 1.18 664 1.3 710 1.41 751 1.52 789 1.63 827 1.72 861 1.8 892 1.89
3300 624 1.24 677 1.36 722 1.48 761 1.59 799 1.7 836 1.79 870 1.88 901 1.97
3400 639 1.3 690 1.43 733 1.55 772 1.67 810 1.77 846 1.86 879 1.95 909 2.05
3500 653 1.37 703 1.5 745 1.62 782 1.75 820 1.85 856 1.94 888 2.03 917 2.14
3600 668 1.44 715 1.57 756 1.7 793 1.83 830 1.93 865 2.02 897 2.12 925 2.24

Page 17
TAA SERIES
Air
Volume
cfm
STATIC PRESSURE EXTERNAL TO UNIT  Inches Water Gauge
0.9 1 1.1 1.2 1.3 1.4 1.5
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
2400 855 1.44 888 1.51 920 1.59 950 1.67 979 1.77 1006 1.86 1033 1.96
2500 863 1.5 896 1.57 928 1.65 958 1.74 986 1.84 1013 1.94 1039 2.04
2600 872 1.56 904 1.64 936 1.72 965 1.82 993 1.92 1019 2.02 1045 2.12
2700 880 1.62 913 1.7 943 1.79 972 1.89 1000 2 1026 2.1 1052 2.2
2800 889 1.69 921 1.77 951 1.87 979 1.97 1006 2.08 1033 2.18 1058 2.29
2900 898 1.76 929 1.85 959 1.95 987 2.05 1013 2.16 1039 2.26 1064 2.37
3000 906 1.83 937 1.93 966 2.03 994 2.13 1020 2.24 1046 2.35 1070 2.46
3100 914 1.91 944 2.01 973 2.11 1001 2.22 1027 2.33 1052 2.44 1077 2.55
3200 922 1.99 952 2.09 980 2.2 1008 2.3 1033 2.41 1058 2.53 1083 2.64
3300 930 2.07 959 2.18 987 2.29 1014 2.39 1040 2.5 1065 2.62 1089 2.73
3400 938 2.16 966 2.27 994 2.38 1021 2.49 1046 2.6 1071 2.71 1095 2.83
3500 945 2.26 973 2.37 1001 2.48 1028 2.58 1053 2.69 1077 2.81 1101 2.93
3600 953 2.35 980 2.47 1008 2.58 1034 2.68 1059 2.79 1084 2.91 1107 3.03
TA 120 BLOWER PERFORMANCE
Air
Volume
cfm
STATIC PRESSURE EXTERNAL TO UNIT  Inches Water Gauge
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
3000 484 0.51 516 0.6 552 0.7 591 0.82 635 0.95 677 1.07 699 1.1 736 1.18
3200 499 0.62 531 0.7 566 0.8 606 0.92 651 1.06 684 1.15 707 1.18 746 1.28
3400 514 0.73 546 0.81 582 0.91 622 1.03 667 1.17 690 1.22 717 1.29 758 1.4
3600 529 0.84 562 0.93 598 1.03 639 1.15 679 1.28 697 1.31 730 1.4 772 1.52
3800 545 0.96 579 1.05 616 1.15 658 1.28 686 1.37 706 1.41 745 1.53 786 1.65
4000 562 1.09 596 1.18 634 1.29 674 1.41 693 1.46 720 1.54 761 1.67 802 1.79
4200 580 1.23 615 1.31 654 1.42 684 1.52 702 1.57 737 1.69 778 1.82 819 1.94
4400 600 1.37 635 1.45 672 1.56 691 1.62 717 1.72 756 1.86 796 1.98 836 2.09
4600 619 1.51 655 1.59 683 1.68 702 1.76 736 1.89 775 2.02 814 2.13 853 2.24
4800 639 1.65 673 1.73 692 1.81 719 1.93 757 2.08 795 2.19 832 2.3 871 2.4
5000 659 1.78 685 1.87 706 1.97 740 2.12 778 2.26 814 2.37 851 2.46 889 2.56
Air
Volume
cfm
STATIC PRESSURE EXTERNAL TO UNIT  Inches Water Gauge
0.9 1 1.1 1.2 1.3 1.4 1.5
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
3000 779 1.29 826 1.42 873 1.56 919 1.7 964 1.84 1009 1.98 1054 2.11
3200 790 1.4 836 1.53 882 1.66 929 1.8 974 1.94 1019 2.07 1063 2.21
3400 802 1.51 847 1.64 893 1.77 938 1.91 983 2.04 1028 2.17 1072 2.31
3600 815 1.64 859 1.76 904 1.89 949 2.03 993 2.16 1037 2.29 1080 2.42
3800 829 1.77 873 1.9 917 2.03 961 2.16 1005 2.29 1048 2.42 1090 2.55
4000 845 1.91 888 2.04 932 2.17 975 2.31 1018 2.43 1060 2.56 1102 2.69
4200 861 2.06 904 2.19 948 2.32 990 2.46 1033 2.59 1074 2.71 1116 2.84
4400 878 2.21 921 2.34 963 2.47 1006 2.6 1048 2.73 1089 2.86 1130 2.98
4600 894 2.36 936 2.49 979 2.61 1021 2.74 1063 2.87 1104 3 1145 3.12
4800 911 2.51 953 2.63 995 2.76 1036 2.88 1078 3.01 1119 3.13 1161 3.26
5000 928 2.67 969 2.78 1011 2.9 1052 3.03 1094 3.15 1135 3.27 1176 3.4

Page 18
506149−01 04/11
TA 150 BLOWER PERFORMANCE
Air
Volume
cfm
STATIC PRESSURE EXTERNAL TO UNIT  Inches Water Gauge
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
4000 627 1.26 669 1.39 690 1.45 714 1.52 754 1.65 795 1.76 835 1.87 877 1.98
4200 653 1.42 684 1.52 701 1.57 736 1.69 777 1.82 816 1.92 856 2.02 897 2.13
4400 676 1.57 694 1.63 721 1.73 761 1.87 800 1.99 838 2.08 877 2.18 917 2.28
4600 688 1.7 710 1.79 747 1.93 787 2.06 823 2.16 860 2.24 898 2.33 938 2.43
4800 702 1.85 735 1.99 774 2.14 812 2.25 846 2.32 882 2.4 920 2.49 959 2.58
5000 725 2.06 763 2.21 801 2.34 837 2.44 869 2.49 903 2.55 941 2.64 979 2.73
5200 754 2.3 791 2.43 828 2.55 862 2.63 891 2.66 925 2.71 962 2.79 1000 2.88
5400 783 2.53 819 2.65 855 2.75 887 2.82 913 2.82 946 2.86 983 2.95 1021 3.03
5600 810 2.74 845 2.85 881 2.95 912 3.01 935 2.98 967 3.01 1004 3.1 1041 3.19
5800 835 2.95 871 3.05 906 3.15 936 3.19 957 3.14 987 3.16 1024 3.25 1062 3.34
6000 860 3.14 896 3.25 931 3.35 960 3.37 978 3.3 1008 3.31 1045 3.4 1083 3.48
Air
Volume
cfm
STATIC PRESSURE EXTERNAL TO UNIT  Inches Water Gauge
0.9 1 1.1 1.2 1.3 1.4 1.5
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
4000 920 2.1 963 2.22 1006 2.34 1048 2.46 1091 2.58 1133 2.69 1174 2.81
4200 939 2.24 982 2.36 1024 2.48 1067 2.59 1109 2.71 1151 2.83 1193 2.95
4400 959 2.39 1001 2.5 1043 2.61 1085 2.73 1127 2.85 1169 2.96 1211 3.08
4600 979 2.53 1020 2.64 1062 2.76 1104 2.87 1146 2.99 1188 3.1 1230 3.22
4800 999 2.68 1040 2.79 1082 2.9 1123 3.01 1165 3.12 1207 3.24 1248 3.35
5000 1019 2.83 1060 2.93 1101 3.04 1142 3.15 1184 3.26 1226 3.38 1267 3.49
5200 1040 2.98 1080 3.08 1121 3.19 1162 3.29 1203 3.41 1245 3.52 1286 3.63
5400 1060 3.13 1100 3.23 1140 3.33 1181 3.44 1222 3.55 1264 3.66 1305 3.77
5600 1080 3.28 1120 3.37 1160 3.48 1201 3.58 1242 3.69 1283 3.8 1324 3.91
5800 1101 3.43 1140 3.52 1180 3.62 1220 3.72 1261 3.83 1302 3.94 1343 4.05
6000 1121 3.57 1160 3.67 1200 3.77 1240 3.87 1280 3.97 1321 4.08 1362 4.19
TA 180 BLOWER PERFORMANCE
Air
Volume
cfm
STATIC PRESSURE EXTERNAL TO UNIT  Inches Water Gauge
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
4800 440 0.78 486 1.16 534 1.46 582 1.7 628 1.9 670 2.07 709 2.18 744 2.24
5000 446 0.88 492 1.25 540 1.54 588 1.77 634 1.97 676 2.14 714 2.26 748 2.34
5200 452 0.98 499 1.34 547 1.62 595 1.84 640 2.04 682 2.22 719 2.34 753 2.43
5400 458 1.08 505 1.43 554 1.7 602 1.92 647 2.12 688 2.3 724 2.44 757 2.54
5600 465 1.18 512 1.52 561 1.77 609 1.99 653 2.2 694 2.39 729 2.53 762 2.65
5800 471 1.28 519 1.61 568 1.85 616 2.07 660 2.28 700 2.48 734 2.64 766 2.77
6000 478 1.38 526 1.7 575 1.93 623 2.15 667 2.37 706 2.58 740 2.76 771 2.91
6200 485 1.48 534 1.79 583 2.01 630 2.23 674 2.46 712 2.69 745 2.88 776 3.05
6400 493 1.59 542 1.88 591 2.1 638 2.32 681 2.56 718 2.81 750 3.01 780 3.2
6600 500 1.69 550 1.96 599 2.18 646 2.41 688 2.67 724 2.93 755 3.16 785 3.36
6800 508 1.79 558 2.05 607 2.27 654 2.51 695 2.78 730 3.07 761 3.32 789 3.54
7000 516 1.89 567 2.15 616 2.36 662 2.61 702 2.91 736 3.22 766 3.49 794 3.73
7200 525 1.99 575 2.24 625 2.46 670 2.73 709 3.05 742 3.38 771 3.68 798 3.94

Page 19
TAA SERIES
Air
Volume
cfm
STATIC PRESSURE EXTERNAL TO UNIT  Inches Water Gauge
0.9 1 1.1 1.2 1.3 1.4 1.5
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
4800 778 2.33 811 2.47 844 2.69 876 2.94 907 3.18 936 3.38 966 3.58
5000 782 2.43 814 2.59 847 2.81 879 3.07 909 3.32 939 3.53 968 3.75
5200 786 2.54 818 2.71 850 2.95 881 3.22 912 3.48 941 3.7 970 3.93
5400 790 2.66 821 2.85 853 3.09 884 3.37 914 3.64 943 3.88 972 4.12
5600 794 2.79 825 2.99 856 3.24 887 3.54 917 3.82 946 4.07 975 4.33
5800 798 2.93 828 3.14 859 3.41 890 3.71 919 4.01 948 4.28 977 4.56
6000 801 3.07 832 3.3 862 3.58 892 3.9 922 4.22 951 4.51 980 4.81
6200 805 3.23 835 3.47 865 3.77 895 4.11 924 4.44 953 4.75 983 5.07
6400 809 3.4 839 3.65 868 3.97 898 4.32 927 4.68 956 5.01 986 5.35
6600 813 3.58 842 3.85 872 4.18 901 4.56 930 4.93 959 5.28 989 5.65
6800 817 3.77 846 4.06 875 4.41 904 4.8 933 5.2 962 5.58 993 5.97
7000 821 3.98 849 4.29 878 4.66 907 5.07 936 5.49 965 5.89 996 6.31
7200 825 4.21 853 4.53 881 4.92 910 5.35 939 5.79 969 6.22 1000 6.67
TA 240 BLOWER PERFORMANCE
Air
Volume
cfm
STATIC PRESSURE EXTERNAL TO UNIT  Inches Water Gauge
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
6400 535 1.84 583 2.06 630 2.28 674 2.51 713 2.77 746 3.03 776 3.25 805 3.44
6600 545 1.94 593 2.16 640 2.38 683 2.63 720 2.91 753 3.19 782 3.43 810 3.64
6800 555 2.05 604 2.27 650 2.5 692 2.76 728 3.06 759 3.36 787 3.62 815 3.85
7000 566 2.16 614 2.38 660 2.62 701 2.9 736 3.23 766 3.55 793 3.83 820 4.08
7200 577 2.27 625 2.49 671 2.75 710 3.05 743 3.4 772 3.75 799 4.05 825 4.32
7400 588 2.38 637 2.61 681 2.88 719 3.21 751 3.59 778 3.96 804 4.29 829 4.58
7600 600 2.49 648 2.74 691 3.03 727 3.39 758 3.79 784 4.18 809 4.54 834 4.85
7800 613 2.61 660 2.88 701 3.19 735 3.57 764 4 790 4.42 814 4.8 839 5.14
8000 626 2.73 671 3.02 711 3.36 743 3.77 771 4.22 796 4.67 819 5.08 844 5.45
8200 638 2.86 682 3.18 720 3.55 751 3.98 777 4.46 801 4.93 824 5.37 849 5.77
8400 651 3 694 3.35 729 3.75 758 4.21 784 4.7 807 5.21 829 5.68 853 6.12
8600 664 3.15 704 3.53 738 3.96 765 4.44 789 4.97 812 5.5 834 6 858 6.48
8800 676 3.32 714 3.73 746 4.19 772 4.7 795 5.25 817 5.81 839 6.35 863 6.86
9000 688 3.5 724 3.94 754 4.43 778 4.97 800 5.54 822 6.13 844 6.71 868 7.27
9200 700 3.71 733 4.17 761 4.69 784 5.26 806 5.86 826 6.48 848 7.09 873 7.69
9400 711 3.93 742 4.43 768 4.97 790 5.57 811 6.19 831 6.85 853 7.5 878 8.15
9600 721 4.17 750 4.71 775 5.28 796 5.9 816 6.56 836 7.25 858 7.94 884 8.63

Page 20
506149−01 04/11
Air
Volume
cfm
STATIC PRESSURE EXTERNAL TO UNIT  Inches Water Gauge
0.9 1 1.1 1.2 1.3 1.4 1.5
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
6400 833 3.66 863 3.92 892 4.24 922 4.59 952 4.93 981 5.28 1012 5.65
6600 838 3.87 867 4.15 896 4.49 926 4.86 956 5.22 986 5.6 1017 5.99
6800 842 4.09 871 4.39 900 4.75 930 5.14 960 5.54 991 5.94 1022 6.36
7000 847 4.34 875 4.65 905 5.03 934 5.45 964 5.87 996 6.3 1028 6.75
7200 851 4.6 880 4.94 909 5.34 939 5.78 969 6.22 1001 6.68 1034 7.16
7400 856 4.88 884 5.24 913 5.66 943 6.13 974 6.6 1006 7.09 1040 7.6
7600 861 5.18 888 5.56 918 6.01 948 6.5 980 7.01 1012 7.53 1047 8.07
7800 865 5.49 893 5.9 923 6.38 953 6.9 985 7.44 1019 7.99 1054 8.56
8000 870 5.83 898 6.27 928 6.77 959 7.32 991 7.89 1026 8.48 1062 9.08
8200 875 6.19 903 6.65 933 7.19 964 7.77 998 8.37 1033 9 1070 9.63
8400 879 6.56 908 7.07 938 7.63 970 8.25 1004 8.89 1040 9.54 1078 10.2
8600 884 6.96 913 7.5 944 8.1 977 8.75 1011 9.43 1048 10.12 1087 10.81
8800 890 7.39 919 7.96 950 8.6 983 9.29 1019 10 1057 10.73 1096 11.44
9000 895 7.83 924 8.45 956 9.13 991 9.85 1027 10.6 1066 11.36 1105 12.11
9200 900 8.31 931 8.97 963 9.69 998 10.45 1036 11.24 1075 12.03 1115 12.8
9400 906 8.81 937 9.51 970 10.28 1006 11.08 1045 11.91 1085 12.73 1125 13.52
9600 912 9.34 944 10.09 978 10.9 1015 11.75 1054 12.61 1095 13.46 1136 14.28
Repairing or Replacing Cabinet Insulation
IMPORTANT
DAMAGED INSULATION MUST BE REPAIRED OR
REPLACED before the unit is put back into operation.
Insulation loses its insulating value when wet, damaged,
separated or torn.
WARNING
This product and/or the indoor unit it is matched with may
contain fiberglass wool.
Disturbing the insulation during installation,
maintenance, or repair will expose you to fiberglass wool
dust. Breathing this may cause lung cancer. (Fiberglass
wool is known to the State of California to cause cancer.)
Fiberglass wool may also cause respiratory, skin, and
eye irritation.
To reduce exposure to this substance or for further
information, consult material safety data sheets
available from address shown below, or contact your
supervisor.
Lennox Industries Inc.
P.O. Box 799900
Dallas, TX 75379−9900
Mat- or foil−faced insulation is installed in indoor equipment
to provide a barrier between outside air conditions
(surrounding ambient temperature and humidity) and the
varying conditions inside the unit. If the insulation barrier is
damaged (wet, ripped, torn or separated from the cabinet
walls), the surrounding ambient air will affect the inside
surface temperature of the cabinet. The
temperature/humidity difference between the inside and
outside of the cabinet can cause condensation on the
inside or outside of the cabinet which leads to sheet metal
corrosion and subsequently, component failure.
REPAIRING DAMAGED INSULATION
Areas of condensation on the cabinet surface are an
indication that the insulation is in need of repair.
If the insulation in need of repair is otherwise in good
condition, the insulation should be cut in an X pattern,
peeled open, glued with an appropriate all−purpose glue
and placed back against the cabinet surface, being careful
to not overly compress the insulation so the insulation can
retain its original thickness. If such repair is not possible,
replace the insulation. If using foil-faced insulation, any
cut, tear, or separations in the insulation surface must be
taped with a similar foil−faced tape.
Optional Accessories
Refer to the Lennox TAA Series Engineering Handbook for
the latest available accessories for this unit.
SFloat Switch Kit
SFreeze Stat Kit
SReturn Air Grill Kit
SEconomizer Kit
SUVC Germicidal Light Kit
SAir Filter Kit
SHot Water Coil Heating Kit
SElectric Heat Kit
SSteam Coil Heating Kit