Trane Air Conditioner Gaf2a0a24s21sa User Manual
Modular  
Multi-position  
Air Handlers  
Air Handler-Convertible  
Model: Series 2 Air Handlers 1.5 - 3 ton  
GAF2A0A18S11SA  
GAF2A0A24S21SA  
GAF2A0A30S21SA  
GAF2A0A36S31SA  
PUB. NO. 22-1858-02  
Contents  
Features and Benefits  
2
4
Optional Equipment  
Unique Cabinet Design Features and Benefits 5  
General Data  
6
6
6
6
6
GAF2A0A18S11SA  
GAF2A0A24S21SA  
GAF2A0A30S21SA  
GAF2A0A36S31SA  
Performance Data  
Electrical Data  
Wiring Diagrams  
Field Wiring  
7
11  
13  
14  
16  
17  
Convertibility  
Dimensions  
Pub. No. 22-1858-02  
3
Optional Equipment  
OPTIONAL EQUIPMENT FOR GAF2 AIR HANDLERS  
Accessory Number  
BAYECAA05LG1A  
BAYECAA08LG1A  
BAYECAA10LG1A  
BAYSFSCABAA  
Description  
Electric Heater, 5kW, Lugs, 24V Control, 1 Ph  
Electric Heater, 8kW, Lugs, 24V Control, 1 Ph  
Electric Heater, 10kW, Lugs, 24V Control, 1 Ph  
Supply Duct Flange A1 1  
Fits Cabinet Size  
A
A
A
A1 1  
A
BAYRETFLGAA  
Return Duct Flange A  
TASB175SB  
Plenum Stand with Sound Baffle A  
Front Return Kit  
A
BAYFRKIT100  
A
BAYBRFBX100  
Bottom Return Filter Box  
A
BAYWMKIT001  
Wall Mount Kit  
A
BAYLVKIT100A  
Low Voltage Conduit Entry Kit  
R-22 TXV Conversion Kit  
A
BAYAHTXV1836  
A
1 GAF2A0A18-36 Cabinet is one piece 17.5” wide  
4
Pub. No. 22-1858-02  
Unique Cabinet Design  
Features and Benefits  
2 Precision Durable  
1 Unique Cabinet  
Door Seals  
Design  
5 Conduit  
Connection  
Location  
r Integrated Horizontal  
Drain Pans  
9 All Aluminum Coil  
q Thermal Expansion  
Valve (TXV)  
3 Refrigeration  
7 PSC 3 Speed  
Connections  
Motor  
4 Condensate  
Connections  
8 VorticaTM Blower  
and Deck  
e Compact 20.8” Depth  
0 Labeled Panels  
with Doors Removed  
and Connections  
w Maximum width  
is 17.5”  
1 Unique Cabinet Design  
9 All Aluminum Coil  
- Double wall foamed cabinet system  
- Waterproof Cabinet Design  
- Integrated Slide Deck for Easy Removal  
- Polarized Plug connections on Coil TXV  
- Patented Enhanced Coil Fin  
- R-4.2 Insulating Value (Avg. Insulating Value R-8)  
- Composite Foamed Cabinet Doors  
- Sweat Eliminating Cabinet Design  
- Loose Fiber Eliminating Design  
- Smooth Cleanable Cabinet Design  
- 2% or Less air leakage  
0 Labeled Panels and Connections  
q R-410A Thermal Expansion Valve (TXV)  
w Maximum width is 17.5”  
e Compact 20.8” Depth with Doors Removed  
r Integrated Horizontal Drain Pans  
2 Precision Durable Door Seals  
3 Brazed Refrigeration Connections  
4 Primary/Secondary Condensate Connections  
5 Conduit Connection - Conduit Connection on Top  
7 PSC 3 Speed Motor  
8 VorticaTM Blower and Deck - Polarized Plug on Blower  
Pub. No. 22-1858-02  
5
General  
Data  
PRODUCT SPECIFICATIONS  
GAF2A0A36S31SA  
208-230/1/60  
See O.D. Specifications  
GAF2A0A18S11SA  
208-230/1/60  
See O.D. Specifications  
GAF2A0A24S21SA  
208-230/1/60  
GAF2A0A30S21SA  
208-230/1/60  
MODEL  
RATED VOLTS/PH/HZ.  
RATINGS 1  
INDOOR COIL — Type  
Rows — F.P.I.  
See O.D. Specifications  
See O.D. Specifications  
Plate Fin  
3 - 14  
Plate Fin  
3 - 14  
Plate Fin  
3 - 14  
Plate Fin  
3 - 14  
3.21  
3/8  
3.21  
3/8  
3.21  
3/8  
3.21  
3/8  
Face Area (sq. ft.)  
Tube Size (in.)  
TXV  
TXV  
TXV  
TXV  
Refrigerant Control  
3/4 NPT  
See Outline Drawing  
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  
11 X 8  
1
Direct - 3  
See Fan Performance Table  
1 - 1/2  
Centrifugal  
11 X 8  
1
Direct - 3  
See Fan Performance Table  
1 - 1/3  
Centrifugal  
10 X 8  
1
Centrifugal  
10 X 8  
1
Direct - 3  
Direct - 3  
See Fan Performance Table See Fan Performance Table  
1 - 1/4  
1075  
208-230/1/60  
1.3 - 2.6  
1 - 1/3  
1075  
208-230/1/60  
1.7 - 3.5  
1075  
208-230/1/60  
2.4 - 3.8  
825  
208-230/1/60  
2.0 - 4.1  
F.L. Amps - L.R. Amps  
FILTER  
No  
Throwaway  
1 - 16 X 20 - 1 in.  
R-410A  
No  
Throwaway  
1 - 16 X 20 - 1 in.  
R-410A  
No  
Throwaway  
1 - 16 X 20 - 1 in.  
R-410A  
No  
Throwaway  
1 - 16 X 20 - 1 in.  
R-410A  
Filter Furnished?  
Type Recommended  
No.-Size-Thickness  
REFRIGERANT  
Ref. Line Connections  
Coupling or Conn. Size — in. Gas  
Coupling or Conn. Size — in. Liq.  
DIMENSIONS  
Brazed  
3/4  
3/8  
Brazed  
3/4  
3/8  
Brazed  
3/4  
3/8  
Brazed  
3/4  
3/8  
H x W x D  
40.5 x 20 x 24.5  
39.5 x 17.5 x 21.8  
H x W x D  
40.5 x 20 x 24.5  
39.5 x 17.5 x 21.8  
H x W x D  
40.5 x 20 x 24.5  
39.5 x 17.5 x 21.8  
H x W x D  
40.5 x 20 x 24.5  
39.5 x 17.5 x 21.8  
Crated (In.)  
Uncrated  
WEIGHT  
Shipping (Lbs.)/Net (Lbs.)  
122/112  
117/107  
120/110  
121/111  
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)  
6
Pub. No. 22-1858-02  
General  
Data  
GAF2A0A18 AIRFLOW PERFORMANCE TABLE  
AIRFLOW PERFORMANCE  
GAF2A0A18S11SA  
EXTERNAL STATIC  
AIRFLOW (CFM)  
(in w.g)  
Speed Taps - 230 VOLTS Speed Taps - 208 VOLTS  
3
2 †  
768  
741  
704  
662  
607  
531  
441  
346  
N/A  
N/A  
N/A  
1
3
2 †  
654  
636  
610  
577  
529  
460  
378  
244  
N/A  
N/A  
N/A  
1
0
952  
894  
845  
785  
724  
652  
557  
428  
284  
N/A  
N/A  
710  
687  
658  
620  
568  
494  
404  
N/A  
N/A  
N/A  
N/A  
940  
885  
831  
775  
714  
640  
543  
418  
225  
N/A  
N/A  
598  
581  
558  
526  
477  
415  
347  
N/A  
N/A  
N/A  
N/A  
0.1  
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  
GAF2A0A18S11SA MINIMUM HEATER AIRFLOW CFM  
Heater  
Minimum Air Speed Tap  
Without Heat Pump  
With Heat Pump  
Tap 3  
BAYECAA05LG1AA  
BAYECAA08LG1AA  
BAYECAA10LG1AA  
Tap 1  
Available soon  
Available soon  
Available soon  
Available soon  
SEE AIR HANDLER NAMEPLATE OR PRODUCT DATA FOR EXCEPTIONS  
Note: Heating and cooling speeds are the same, factory  
set at Speed Tap #2.  
Pub. No. 22-1858-02  
7
Performance  
Data  
GAF2A0A24 AIRFLOW PERFORMANCE TABLE  
AIRFLOW PERFORMANCE  
GAF2A0A24S21SA  
EXTERNAL STATIC  
AIRFLOW (CFM)  
Speed Taps - 230 VOLTS Speed Taps - 208 VOLTS  
(in w.g)  
3
2 †  
848  
816  
784  
750  
708  
659  
591  
513  
416  
309  
130  
1
3
2 †  
737  
710  
683  
650  
611  
547  
499  
420  
339  
203  
N/A  
1
0
998  
949  
911  
869  
825  
772  
707  
614  
533  
413  
241  
771  
745  
711  
679  
638  
586  
518  
444  
356  
218  
N/A  
899  
868  
834  
794  
756  
704  
641  
555  
465  
351  
167  
658  
630  
602  
567  
524  
476  
415  
346  
268  
138  
N/A  
0.1  
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  
GAF2A0A24S21SA MINIMUM HEATER AIRFLOW CFM  
Heater  
Minimum Air Speed Tap  
Without Heat Pump  
With Heat Pump  
Tap 2  
BAYECAA05LG1AA  
BAYECAA08LG1AA  
BAYECAA10LG1AA  
Tap 1  
Available soon  
Available soon  
Available soon  
Available soon  
SEE AIR HANDLER NAMEPLATE OR PRODUCT DATA FOR EXCEPTIONS  
Note: Heating and cooling speeds are the same, factory  
set at Speed Tap #2.  
8
Pub. No. 22-1858-02  
Performance  
Data  
GAF2A0A30 AIRFLOW PERFORMANCE TABLE  
AIRFLOW PERFORMANCE  
GAF2A0A30S21SA  
EXTERNAL STATIC  
(in w.g)  
Speed Taps - 230 VOLTS  
Speed Taps - 208 VOLTS  
3
2 †  
1
3
2
1
0
0.1  
1052  
1012  
963  
914  
865  
816  
759  
690  
589  
389  
179  
967  
929  
888  
849  
805  
759  
698  
622  
503  
336  
149  
932  
898  
861  
823  
784  
741  
681  
592  
463  
318  
119  
1024  
980  
934  
885  
837  
788  
739  
668  
559  
375  
175  
877  
846  
814  
777  
739  
697  
640  
559  
423  
285  
NA  
826  
800  
771  
738  
703  
663  
602  
515  
395  
259  
NA  
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  
GAF2A0A30S21SA MINIMUM HEATER AIRFLOW CFM  
Heater  
Minimum Air Speed Tap  
Without Heat Pump  
With Heat Pump  
Tap 1  
BAYECAA05LG1AA  
BAYECAA08LG1AA  
BAYECAA10LG1AA  
Tap 1  
Available soon  
Available soon  
Available soon  
Available soon  
SEE AIR HANDLER NAMEPLATE OR PRODUCT DATA FOR EXCEPTIONS  
Note: Heating and cooling speeds are the same, factory  
set at Speed Tap #2.  
Pub. No. 22-1858-02  
9
Performance  
Data  
GAF2A0A36 AIRFLOW PERFORMANCE TABLE  
AIRFLOW PERFORMANCE  
GAF2A0A36S31SA  
EXTERNAL STATIC  
(in w.g)  
Speed Taps - 230 VOLTS  
Speed Taps - 208 VOLTS  
3
2 †  
1
3
2
1
0
1191  
1180  
1158  
1119  
1079  
1040  
993  
1146  
1132  
1110  
1082  
1045  
1005  
960  
1094  
1085  
1065  
1035  
1003  
969  
1040  
1033  
1014  
979  
942  
907  
864  
808  
758  
696  
629  
1015  
1004  
984  
958  
923  
886  
843  
795  
742  
675  
607  
964  
959  
942  
916  
887  
857  
818  
772  
715  
650  
583  
0.1  
0.2  
0.3  
0.4  
0.5  
0.6  
0.7  
0.8  
0.9  
1.0  
927  
934  
910  
877  
880  
855  
816  
815  
786  
748  
744  
715  
677  
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  
GAF2A0A36S31SA MINIMUM HEATER AIRFLOW CFM  
Heater  
Minimum Air Speed Tap  
Without Heat Pump  
With Heat Pump  
Tap 1  
BAYECAA05LG1AA  
BAYECAA08LG1AA  
BAYECAA10LG1AA  
Tap 1  
Available soon  
Available soon  
Available soon  
Available soon  
SEE AIR HANDLER NAMEPLATE OR PRODUCT DATA FOR EXCEPTIONS  
Note: Heating and cooling speeds are the same, factory  
set at Speed Tap #2.  
10  
Pub. No. 22-1858-02  
Electrical  
Data  
WIRING DATA  
GAF2A0A18S11SA  
240 VOLT  
208 VOLT  
Heater  
Model  
No.  
No.  
of  
Circuits  
Heater  
Amps  
per  
Heater  
Amps  
per  
Minimum  
Circuit  
Ampacity  
Maximum  
Overload  
Protection  
Minimum  
Circuit  
Ampacity  
Maximum  
Overload  
Protection  
Capacity  
kW BTUH  
Capacity  
kW BTUH  
Circuit  
Circuit  
No Heater  
-
-
-
2.0**  
20  
3
15  
30  
45  
60  
-
-
2.0**  
17.3  
27.7  
34.6  
3
15  
25  
40  
50  
BAYECAA05++  
BAYECAA08++  
BAYECAA10++  
1
1
1
4.80  
7.68  
9.60  
16400  
26200  
32800  
28  
43  
53  
3.60  
5.76  
7.20  
12300  
19700  
24600  
24  
37  
46  
32  
40  
Note: ** Motor Amps  
WIRING DATA  
GAF2A0A24S21SA  
240 VOLT  
208 VOLT  
Heater  
Model  
No.  
No.  
of  
Circuits  
Heater  
Amps  
per  
Heater  
Amps  
per  
Minimum  
Circuit  
Ampacity  
Maximum  
Overload  
Protection  
Minimum  
Circuit  
Ampacity  
Maximum  
Overload  
Protection  
Capacity  
Capacity  
kW  
-
BTUH  
-
kW  
-
BTUH  
-
Circuit  
Circuit  
No Heater  
-
1.3**  
20  
2
15  
30  
45  
60  
1.3**  
17.3  
27.7  
34.6  
2
15  
25  
40  
45  
BAYECAA05++  
BAYECAA08++  
BAYECAA10++  
1
1
1
4.80  
7.68  
9.60  
16400  
26200  
32800  
27  
42  
52  
3.60  
5.76  
7.20  
12300  
19700  
24600  
23  
38  
45  
32  
40  
Note: ** Motor Amps  
WIRING DATA  
GAF2A0A30S21SA  
240 VOLT  
208 VOLT  
Heater  
Model  
No.  
No.  
of  
Circuits  
Heater  
Amps  
per  
Heater  
Amps  
per  
Minimum  
Circuit  
Ampacity  
Maximum  
Overload  
Protection  
Minimum  
Circuit  
Ampacity  
Maximum  
Overload  
Protection  
Capacity  
Capacity  
kW  
-
BTUH  
-
kW  
-
BTUH  
-
Circuit  
Circuit  
No Heater  
-
1.7**  
20  
2
15  
30  
45  
60  
1.7**  
17.3  
27.7  
34.6  
2
15  
25  
40  
45  
BAYECAA05++  
BAYECAA08++  
BAYECAA10++  
1
1
1
4.80  
7.68  
9.60  
16400  
26200  
32800  
27  
42  
52  
3.60  
5.76  
7.20  
12300  
19700  
24600  
24  
38  
45  
32  
40  
Note: ** Motor Amps  
Pub. No. 22-1858-02  
11  
Electrical  
Data  
WIRING DATA  
GAF2A0A36S31SA  
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  
-
-
-
2.4**  
20  
3
15  
30  
45  
60  
-
-
2.4**  
17.3  
27.7  
34.6  
3
15  
25  
40  
50  
BAYECAA05++  
BAYECAA08++  
BAYECAA10++  
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  
46  
32  
40  
Note: ** Motor Amps  
DISTANCE FROM BELLY BAND TO SHAFT FACE OF MOTOR FOR MINIMUM VIBRATION  
BLOWER HOUSING  
MODEL  
DIM "A"  
1-1/8  
GAF2A0A18S11SA  
GAF2A0A24S21SA  
GAF2A0A30S21SA  
GAF2A0A36S31SA  
BELLY BAND  
2-11/16  
1-9/16  
A
1-11/16  
MOTOR  
WHEEL  
A is determined per chart  
Wheel is centered in  
Blower Housing  
12  
Pub. No. 22-1858-02  
Pub. No. 22-1858-02  
13  
Field  
Wiring  
GAF2 AIR HANDLERS WITH SINGLE SPEED COOLING  
Air Handler Hook-up Diagram  
Cooling  
W1 White  
Green  
Blue  
Air Handler  
Air Conditioner  
Blue  
Comfort Control  
White  
Green  
Yellow  
Orange  
Red  
W
G
Y
O
R
B
White  
Green  
Yellow  
Yellow  
Red  
Blue  
Blue  
B - Blue  
Y - Yellow  
Field wiring  
14  
Pub. No. 22-1858-02  
Field  
Wiring  
GAF2 AIR HANDLERS WITH SINGLE SPEED HEAT PUMP  
Air Handler Hook-up Diagram  
HP  
Heat Pump  
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  
Field wiring  
Pub. No. 22-1858-02  
15  
GAF2  
Convertibility  
* Note: No internal modifications required for any position.  
1 Badge rotation will keep brand in correct position  
Multi-position Air Handler  
Refrigerant  
Connections  
Low Voltage  
Connections  
inside unit  
1
Upflow  
Condensate  
Drains  
Upflow Configuration  
Low Voltage  
Connections  
inside unit  
Refrigerant  
Connections  
Refrigerant  
Connections  
1
Airflow  
1
Airflow  
Horizontal Right  
Condensate  
Drains  
Horizontal Left  
Condensate  
Drains  
Low Voltage  
Connections  
inside unit  
Horizontal Left*  
Horizontal Right*  
16  
Pub. No. 22-1858-02  
Dimensions  
GAF2 AIR HANDLER DIMENSIONAL DATA  
W
H
D
Model  
Number  
H x D x W  
in.  
Unit  
Net Weight  
lbs.  
GAF2A0A18S11SA  
GAF2A0A24S21SA  
GAF2A0A30S21SA  
GAF2A0A36S31SA  
39 x 22 x 17.5  
39 x 22 x 17.5  
39 x 22 x 17.5  
39 x 22 x 17.5  
107  
110  
111  
112  
GAF2 AIR HANDLERS ARE ALL ONE  
PIECE CABINETS.  
Pub. No. 22-1858-02  
17  
GAF2 OUTLINE DRAWING  
18  
Pub. No. 22-1858-02  
Pub. No. 22-1858-02  
19  
11/11  
Trane  
6200 Troup Highway  
Tyler,TX 75707  
www.trane.com  
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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