Modular
Multi-position
Air Handlers
GAT2A0B42S31SA
GAT2A0C48S41SA
GAT2A0C60S51SA
PUB. NO. 22-1857-03
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Contents
Features and Benefits
2
4
Optional Equipment
Unique Cabinet Design Features and Benefits 5
General Data
6
6
6
6
GAT2A0B42S31SA
GAT2A0C48S41SA
GAT2A0C60S51SA
Performance Data
Electrical Data
Wiring Diagrams
Field Wiring
7
10
13
15
17
18
Convertibility
Dimensions
Pub. No. 22-1857-03
3
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Optional Equipment
OPTIONAL EQUIPMENT FOR AIR HANDLERS
Accessory Number
BAYEAAC05BK1A
BAYEAAC05LG1A
BAYEAAC08BK1A
BAYEAAC08LG1A
BAYEAAC10BK1A
BAYEAAC10LG1A
BAYEABC15BK1A
BAYEABC20BK1A
BAYEACC25BK1A
BAYSUPFLGBA
BAYSUPFLGCA
BAYRETFLGB
Description
Fits Cabinet Size
Electric Heater, 5kW, Breaker, 24V Control, 1 Ph
Electric Heater, 5kW, Lugs, 24V Control, 1 Ph
Electric Heater, 8kW, Breaker, 24V Control, 1 Ph
Electric Heater, 8kW, Lugs, 24V Control, 1 Ph
Electric Heater, 10kW, Breaker, 24V Control, 1 Ph
Electric Heater, 10kW, Lugs, 24V Control, 1 Ph
Electric Heater, 15kW, Breaker, 24V Control, 1 Ph
Electric Heater, 20kW, Breaker, 24V Control, 1 Ph
Electric Heater, 25kW, Breaker, 24V Control, 1 Ph
Supply Duct Flange B
A to C
A to C
A to C
A to C
A to C
A to C
B to C
B to C
C
B
Supply Duct Flange C
C
Return Duct Flange B
B
BAYRETFLGCA
TASB215SB
Return Duct Flange C
C
Plenum Stand B with integrated sound baffle
Plenum Stand C with integrated sound baffle
Side Return Kit
B
TASB235SB
C
BAYSRKIT100A
BAYICSKIT01A
BAYHHKIT001A
BAYUVCLK001A
BAYLVKIT100A
A to C
A to C
A to C
A to C
A to C
Internal Condensate Switch Kit
Horizontal Hanger Kit
UVC Lights
Low Voltage Conduit Entry Kit
4
Pub. No. 22-1857-03
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Unique Cabinet
Design Features and Benefits
2 Precision Durable
1 Unique Cabinet Design
Door Seals
0 Thermal Expansion
5 Conduit
Valve (TXV)
Connections
3 Refrigeration
Connections
e Integrated Horizontal
Drain Pans
8 All Aluminum Coil
4 Condensate
Connections
r Safety Door Switch
7 VorticaTM Blower
and Deck
6 Tool-less Door
9 Labeled Panels
Fasteners
and Connections
w Compact 20.8” Depth
q Maximum width
with Doors Removed
is 23.5”
8 All Aluminum Coil
1 Unique Cabinet Design
- Integrated Slide Deck for Easy Removal
- Polarized Plug connections on Coil EEV
- Patented Enhanced Coil Fin
- Double wall foamed cabinet system
- Waterproof Cabinet Design
- R-4.2 Insulating Value (Avg Insulating Value R-8.2)
- Composite Foamed Cabinet Doors
- Sweat Eliminating Cabinet Design
- Loose Fiber Eliminating Design
9 Labeled Panels and Connections
0 R-410A Thermal Expansion Valve (TXV)
q Maximum width is 23.5”
w Compact 20.8” Depth with Doors Removed
e Integrated Horizontal Drain Pans
r Safety Door Switch - Fused 24V Power
t Modular Cabinet
- Smooth Cleanable Cabinet Design
2 Precision Durable Door Seals
3 Refrigeration Connections
4 Condensate Connections
5 Conduit Connections - Conduit Connections on Left,
Right, and Top
6 Tool-less Door Fasteners
7 VorticaTM Blower and Deck - Polarized Plug on Blower
Pub. No. 22-1857-03
5
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General
Data
PRODUCT SPECIFICATIONS
GAT2A0B42S31SA
208-230/1/60
GAT2A0C48S41SA
208-230/1/60
GAT2A0C60S51SA
208-230/1/60
See O.D. Specifications
MODEL
RATED VOLTS/PH/HZ.
RATINGS 1
See O.D. Specifications
See O.D. Specifications
Plate Fin
3 - 14
Plate Fin
3 - 14
Plate Fin
4 - 14
INDOOR COIL — Type
Rows — F.P.I.
5.04
3/8
5.50
3/8
5.50
3/8
Face Area (sq. ft.)
Tube Size (in.)
TXV
TXV
TXV
Refrigerant Control
3/4 NPT
See Outline Drawing
3/4 NPT
See Outline Drawing
3/4 NPT
See Outline Drawing
Drain Conn. Size (in.)
DUCT CONNECTIONS
INDOOR FAN — Type
Diameter-Width (In.)
No. Used
Drive - No. Speeds
CFM vs. in. w.g.
No. Motors — H.P.
Motor Speed RPM
Volts/Ph/Hz
2
Centrifugal
10 X 10
1
Direct - 3
See Fan Performance Table
1 - 1/2
Centrifugal
11 X 10
1
Direct - 3
See Fan Performance Table
1 - 1/2
Centrifugal
11 X 10
1
Direct - 5 3
See Fan Performance Table
1 - 1
1075
208-230/1/60
2.7 - 5.0
1075
208-230/1/60
3.1 - 5.5
1050
208-230/1/60
7.6 - n/a
F.L. Amps - L.R. Amps
FILTER
No
Throwaway
1 - 20 X 20 - 1 in.
R-410A
No
Throwaway
1 - 20 X 22 - 1 in.
R-410A
No
Throwaway
1 - 20 X 22 - 1 in.
R-410A
Filter Furnished?
Type Recommended
No.-Size-Thickness
REFRIGERANT
Brazed
7/8
3/8
Brazed
7/8
3/8
Brazed
7/8
3/8
Ref. Line Connections
Coupling or Conn. Size — in. Gas
Coupling or Conn. Size — in. Liq.
DIMENSIONS
Crated (In.)
Uncrated
H x W x D
56.8 x 23.5 x 24.5
55.7 x 21.3 x 21.8
H x W x D
58 x 25.5 x 24.5
56.9 x 23.5 x 21.8
H x W x D
62.8 x 25.5 x 24.5
61.7 x 23.5 x 21.8
WEIGHT
144/133
155/143
171/159
Shipping (Lbs.)/Net (Lbs.)
1 These Air Handlers are AHRI certified with various Split System Air Conditioners
and Heat Pumps (AHRI STANDARD 210/240). Refer to the Split System Outdoor
Unit Product Data Guides for performance data.
2 3/4" Male Plastic Pipe (Ref.: ASTM 1785-76)
3 Constant torque Motor
6
Pub. No. 22-1857-03
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General
Data
GAT2A0B42 AIRFLOW PERFORMANCE TABLE
AIRFLOW PERFORMANCE
GAT2A0B42S31SA
EXTERNAL STATIC
AIRFLOW (CFM)
(in w.g)
Speed Taps - 230 VOLTS
Speed Taps - 208 VOLTS
3
2 †
1
3
2 †
1
0
0.1
1646
1599
1546
1488
1425
1353
1259
1145
982
1495
1464
1421
1380
1329
1264
1182
1081
909
1358
1335
1313
1280
1233
1178
1108
995
1522
1489
1449
1401
1348
1281
1202
1102
926
1298
1285
1260
1233
1193
1140
1075
965
1138
1137
1120
1099
1065
1023
958
0.2
0.3
0.4
0.5
0.6
0.7
868
0.8
839
817
753
0.9
788
759
731
761
713
N/A
1.0
563
N/A
N/A
538
N/A
N/A
NOTES:
1. Values are with wet coil and without filters.
2. Contact your particular filter manufacturer for pressure drop data.
3. Electric heater pressure drop is negligible and is included within the airflow data.
4. † Factory Setting
GAT2A0B42S31SA MINIMUM HEATER AIRFLOW CFM
Note: Heating and cooling
speeds are the same, factory
set at Speed Tap #2.
Heater
Minimum Air Speed Tap
With Heat Pump
Without Heat Pump
Tap 1
BAYEAAC05BK1AA
BAYEAAC05LG1AA
Tap 1
Tap 1
Tap 1
BAYEAAC08BK1AA
BAYEAAC08LG1AA
Tap 1
Tap 1
BAYEAAC10BK1AA
BAYEAAC10LG1AA
BAYEABC15BK1AA
BAYEABC20BK1AA
Tap 1
Tap 3
Tap 1
Tap 1
SEE AIR HANDLER NAMEPLATE FOR ADDITIONAL INFORMATION
Pub. No. 22-1857-03
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Performance
Data
GAT2A0C48 AIRFLOW PERFORMANCE TABLE
AIRFLOW PERFORMANCE
GAT2A0C48S41SA
EXTERNAL STATIC
AIRFLOW (CFM)
(in w.g)
Speed Taps - 230 VOLTS
Speed Taps - 208 VOLTS
3
2 †
1
3
2 †
1
0
0.1
1904
1881
1844
1806
1766
1716
1659
1594
1525
1442
1345
1711
1687
1666
1637
1602
1560
1513
1458
1395
1310
N/A
1541
1529
1511
1485
1454
1420
1380
1333
1277
1194
N/A
1652
1640
1619
1592
1559
1524
1484
1434
1376
1304
1194
1455
1450
1425
1410
1381
1351
1321
1283
1229
1149
N/A
1305
1288
1271
1249
1231
1198
1165
1127
1067
N/A
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
N/A
NOTES:
1. Values are with wet coil and without filters.
2. Contact your particular filter manufacturer for pressure drop data.
3. Electric heater pressure drop is negligible and is included within the airflow data.
4. † Factory Setting
GAT2A0C48S41SA MINIMUM HEATER AIRFLOW CFM
Note: Heating and cooling
speeds are the same, factory
set at Speed Tap #2.
Heater
Minimum Air Speed Tap
With Heat Pump
Without Heat Pump
Tap 1
BAYEAAC05BK1AA
BAYEAAC05LG1AA
Tap 1
Tap 1
Tap 1
BAYEAAC08BK1AA
BAYEAAC08LG1AA
Tap 1
Tap 1
BAYEAAC10BK1AA
BAYEAAC10LG1AA
BAYEABC15BK1AA
BAYEABC20BK1AA
BAYEACC25BK1AA
Tap 1
Tap 1
Tap 3
Tap 1
Tap 1
Tap 2 1
1 Not qualified for 208 V
SEE AIR HANDLER NAMEPLATE FOR ADDITIONAL INFORMATION
8
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Performance
Data
GAT2A0C60 AIRFLOW PERFORMANCE TABLE
AIRFLOW PERFORMANCE
GAT2A0C60S51SA
EXTERNAL STATIC
AIRFLOW (CFM)
(in w.g)
Speed Taps - 230 VOLTS
Speed Taps - 208 VOLTS
5
4 †
3
2
1
5
4 †
3
2
1
0
0.1
2169
2161
2130
2102
2066
2015
1959
1888
1811
1750
1680
1956
1916
1889
1850
1818
1785
1754
1716
1680
1628
1604
1874
1839
1803
1774
1741
1707
1673
1638
1605
1561
1533
1739
1696
1667
1628
1596
1564
1520
1477
1440
1403
1368
1633
1588
1554
1523
1491
1457
1408
1372
1323
1291
1256
2165
2155
2121
2090
2052
1998
1939
1880
1820
1770
1725
2033
1990
1961
1919
1884
1848
1814
1774
1735
1680
1654
1871
1833
1795
1763
1727
1690
1653
1615
1580
1533
1503
1736
1690
1659
1617
1582
1547
1500
1455
1415
1376
1337
1629
1582
1545
1511
1477
1440
1389
1349
1298
1263
1226
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
NOTES:
1. Values are with wet coil and without filters.
2. Contact your particular filter manufacturer for pressure drop data.
3. Electric heater pressure drop is negligible and is included within the airflow data.
4. † Factory Setting
GAT2A0C60S51SA MINIMUM HEATER AIRFLOW CFM
Note: Heating and cooling
Heater
Minimum Air Speed Tap
speeds are the same, factory
set at Speed Tap #4 for the
CTM motor.
With Heat Pump
Without Heat Pump
Tap 2
BAYEAAC05BK1AA
BAYEAAC05LG1AA
Tap 2
Tap 3
Tap 3
BAYEAAC08BK1AA
BAYEAAC08LG1AA
Tap 2
Tap 2
BAYEAAC10BK1AA
BAYEAAC10LG1AA
BAYEABC15BK1AA
BAYEABC20BK1AA
BAYEACC25BK1AA
Tap 4
Tap 4
Tap 5
Tap 3
Tap 3
Tap 4
SEE AIR HANDLER NAMEPLATE FOR ADDITIONAL INFORMATION
Pub. No. 22-1857-03
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Performance
Data
WIRING DATA
GAT2A0B42S31SA
240 VOLT
Heater
208 VOLT
Heater
Model
No.
No.
of
Circuits
Heater
Amps
per
Minimum
Circuit
Maximum
Overload
Protection
Minimum
Circuit
Ampacity
Maximum
Overload
Protection
Capacity
kW BTUH
Capacity
kW BTUH
Amps
per
Ampacity
Circuit
Circuit
No Heater
-
-
-
2.7**
20
3
15
30
45
60
-
-
2.7**
17.3
27.7
34.6
3
15
25
40
50
BAYEAAC05++
BAYEAAC08++
BAYEAAC10++
1
1
1
4.80
7.68
9.60
16400
26200
32800
28
43
53
3.60
5.76
7.20
12300
19700
24600
25
38
47
32
40
BAYEABC15++
circuit 1
9.60
4.80
32800
16400
40
20
53
25
60
25
7.20
3.60
24600
12300
34.6
17.3
47
22
50
25
circuit 2
BAYEABC20++
circuit 1
9.60
9.60
32800
32800
40
40
53
50
60
50
7.20
7.20
24600
24600
34.6
34.6
53
43
60
45
circuit 2
Note: ** Motor Amps
10
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Pub. No. 22-1857-03
Performance
Data
WIRING DATA
GAT2A0C48S41SA
240 VOLT
208 VOLT
Heater
Heater
Model
No.
No.
of
Circuits
Heater
Minimum Maximum
Amps
Minimum
Circuit
Maximum
Overload
Capacity
kW BTUH
Capacity
kW BTUH
Amps
per
Circuit
Ampacity Protection
Overload
per
Circuit
Ampacity Protection
Circuit
No Heater
-
-
-
3.1**
20.0
32.0
40.0
4
15
30
45
60
-
-
3.1**
17.3
27.7
34.6
4
15
30
40
50
BAYEAAC05++
BAYEAAC08++
BAYEAAC10++
1
1
1
4.80
7.68
9.60
16400
26200
32800
29
44
54
3.60
5.76
7.20
12300
19700
24600
26
38
47
BAYEABC15++
circuit 1
9.60
4.80
32800
16400
40.0
20.0
54
25
60
25
7.20
3.60
24600
12300
34.6
17.3
47
22
50
25
circuit 2
BAYEABC20++
circuit 1
9.60
9.60
32800
32800
40.0
40.0
54
50
60
50
7.20
7.20
24600
24600
34.6
34.6
53
43
60
45
circuit 2
BAYEABC25++ 1
circuit 1
9.60
9.60
4.80
32800
32800
16400
40.0
40.0
20.0
54
50
25
60
50
25
7.20
7.20
3.60
24600
24600
12300
34.6
34.6
17.3
47
43
22
50
45
25
circuit 2
circuit 3
Note: ** Motor Amps
1 Not qualified for 208 V without Heat Pump
Pub. No. 22-1857-03
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Performance
Data
WIRING DATA
GAT2A0C60S51SA
240 VOLT
Heater
208 VOLT
Heater
Model
No.
No.
of
Circuits
Heater
Amps
per
Minimum
Circuit
Maximum
Overload
Protection
Minimum
Circuit
Ampacity
Maximum
Overload
Protection
Capacity
kW BTUH
Capacity
kW BTUH
Amps
per
Ampacity
Circuit
Circuit
No Heater
-
-
-
7.6**
20.0
32.0
40.0
10
35
50
60
15
35
50
60
-
-
7.6**
17.3
27.7
34.6
10
31
44
53
15
35
45
60
BAYEAAC05++
BAYEAAC08++
BAYEAAC10++
1
1
1
4.80
7.68
9.60
16400
26200
32800
3.60
5.76
7.20
12300
19700
24600
BAYEABC15++
circuit 1
9.60
4.80
32800
16400
40.0
20.0
60
25
60
25
7.20
3.60
24600
12300
34.6
17.3
53
22
60
25
circuit 2
BAYEABC20++
circuit 1
9.60
9.60
32800
32800
40.0
40.0
60
50
60
50
7.20
7.20
24600
24600
34.6
34.6
53
43
60
45
circuit 2
BAYEABC25++
circuit 1
9.60
9.60
4.80
32800
32800
16400
40.0
40.0
20.0
60
50
25
60
50
25
7.20
7.20
3.60
24600
24600
12300
34.6
34.6
17.3
53
43
22
60
45
25
circuit 2
circuit 3
Note: ** Motor Amps
DISTANCE FROM BELLY BAND TO SHAFT FACE OF MOTOR FOR MINIMUM VIBRATION
BLOWER HOUSING
MODEL
DIM "A"
3
GAT2A0B42S31SA
GAT2A0C48S41SA
GAT2A0C60S51SA
BELLY BAND
2-13/16
2-1/4
A
MOTOR
WHEEL
A is determined per chart
Wheel is centered in
Blower Housing
12
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Field
Wiring
GAT2 AIR HANDLERS WITH SINGLE SPEED COOLING
Air Handler Hook-up Diagram
Cooling
W2 Pink
W3 Brown
W1 White
Green
Blue
Air Handler
Air Conditioner
Blue
Comfort Control
White
Green
Yellow
Orange
Red
W
G
Y
O
R
B
White
Yellow
Green
Yellow
Red
Blue
Blue
B - Blue
Y - Yellow
Field wiring
•
* For multiple stages of electric heat, jumper W1, W2, and W3 together if comfort control has only one stage of heat.
Pub. No. 22-1857-03
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Field
Wiring
GAT2 AIR HANDLERS WITH SINGLE SPEED HEAT PUMP
Air Handler Hook-up Diagram
HP
Heat Pump
W2 Pink
W3 Brown
W1 White
Green
Blue
Black
Air Handler
(X2)
Yellow
Comfort Control
Orange
Red
Blue
White
Green
Yellow
W
G
Y
O
R
B
White
Green
Yellow
Orange
Orange
Red
Red
Blue
Blue
R - Red
B - Blue
Y - Yellow
•
* For multiple stages of electric heat, jumper W1, W2, and W3 together if comfort control has only one stage of heat
Field wiring
16
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GAT2
Convertibility
* Note: No internal modifications required for any position.
1 Badge rotation will keep brand in correct position
Multi-position
Air Handler
1
Refrigerant
Connections
Upflow
Condensate
Drains
Vertical Upflow*
(as shipped)
Refrigerant
Connections
Refrigerant
Connections
1
Airflow
Airflow
1
Horizontal Right
Condensate
Drains
Horizontal Left
Condensate
Drains
Horizontal Right*
Horizontal Left*
Pub. No. 22-1857-03
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Dimensions
GAT2 AIR HANDLER DIMENSIONAL DATA
H
Model No.
H
W
D
GAT2A0B42
GAT2A0C48
GAT2A0C60
55.7
56.9
61.7
21.3
23.5
23.5
21.75
21.75
21.75
GAT2 AIR HANDLERS ARE ALL TWO
PIECE CABINETS.
18
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Pub. No. 22-1857-03
GAT2 OUTLINE DRAWING
MODEL NO.
A
B
C
D
E
F
H
FLOW
GAS LINE
CONTROL BRAZE
GAT2A0B42 55.7
GAT2A0C48 56.9
GAT2A0C60 61.7
45.5
46.7
51.5
18.4
20.5
20.5
21.3
23.5
23.5
18.4
20.5
20.5
9.2
24.8
24.2
27.0
TXV
TXV
TXV
7/8
7/8
7/8
10.3
10.3
Pub. No. 22-1857-03
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03/12
Trane
6200 Troup Highway
Tyler,TX 75707
The manufacturer has a policy of continuous product and product data improvement and it reserves the right
to change design and specifications without notice.
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