Trane 5 Series Service manual

GAM5-SF-1P-EN
HAZARDOUS VOLTAGE - DISCONNECT POWER BEFORE SERVICING
WARNING:
Service Facts
*For use with BAYEA series heaters ONLY
Convertible Air Handlers
Models:Series 5 Air Handlers 1-1/2 to 5 Ton
Black Epoxy Coil
GAM5B0A18M11EA
GAM5B0A24M21EA
GAM5B0B30M21EA
GAM5B0B36M31EA
GAM5B0C42M31EA
GAM5B0C48M41EA
GAM5B0C60M51EA
Standard Coil
GAM5B0A18M11SB
GAM5B0A24M21SB
GAM5B0B30M21SB
GAM5B0B36M31SB
GAM5B0C42M31SB
GAM5B0C48M41SB
GAM5B0C60M51SB
WARNING
!
SAFETY HAZARD! This information is intended for
use by individuals possessing adequate backgrounds
of electrical and mechanical experience. Any attempt to
repair a central air conditioning product may result in
personal injury and/or property damage. The manufac-
ture or seller cannot be responsible for the interpreta-
tion of this information, nor can it assume any liability
in connection with its use.
PRESSURIZED REFRIGERANT! SYSTEM CON-
TAINS OIL AND REFRIGERANT UNDER HIGH PRES-
SURE. RECOVER REFRIGERANT TO RELIEVE PRES-
SURE BEFORE OPENING THE SYSTEM.
DO NOT USE NON-APPROVED REFRIGERANTS OR
REFRIGERANT SUBSTITUTES OR REFRIGERANT AD-
DITIVES.
WARNING
!
LIVE ELECTRICAL COMPONENTS! During in-
stallation, testing, servicing, and troubleshooting of this
product, it may be necessary to work with live electrical
components. Failure to follow all electrical safety pre-
cautions when exposed to live electrical components
could result in death or serious injury.
WARNING
!
Note: This unit is certified to UL 1995.
The interior cabinet wall meets the following:
- UL94-5VA Flame Class Listed
- UL723 Steiner Tunnel Listed for 25/50 Flame/
Smoke
- UL746C Listed for Exposure to Ultraviolet Light,
Water Exposure and Immersion
Table of Contents
Product Specifications ....................................................................................................................................2
Airflow Performance........................................................................................................................................3
Heater Attribute Data.....................................................................................................................................10
Wiring Diagram..............................................................................................................................................14
Sequence of Operation..................................................................................................................................15
SubcoolingAdjustment....................................................................................................................................16
Troubleshooting.............................................................................................................................................19
IMPORTANT --- This document contains a wiring diagram and service information. This is customer property and is to remain with this
unit. Please return to service information pack upon completion of work.
Important: Panel damage can occur with prolonged
exposure to POE lubricants. Air handler front panels
that come in contact with POE oil must be washed
immediately with soapy water.
WARNING
!
This product can expose you to chemicals including
lead, which are known to the State of California to case
cancer and birth defects or other reproductive harm.
For more information go to www. P65Warnings.ca.gov

GAM5-SF-1P-EN 2
PRODUCT SPECIFICATIONS
MODEL
RATED VOLTS/PH/HZ.
RATINGS ①
INDOOR COIL — Type
Rows — F.P.I.
Face Area (sq. ft.)
Tube Size (in.)
Refrigerant Control
Drain Conn. Size (in.) ②
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
F.L. Amps
FILTER
Filter Furnished?
Type Recommended
No.-Size-Thickness
REFRIGERANT
Ref. Line Connections
Coupling or Conn. Size — in. Gas
Coupling or Conn. Size — in. Liq.
DIMENSIONS
Crated (In.)
Uncrated
WEIGHT
Shipping (Lbs.) / Net (Lbs.)
①These Air Handlers are A.R.I. certified with various Split System Air Conditioners and Heat Pumps (ARI
STANDARD 210/240). Refer to the Split System Outdoor Unit Product Data Guides for performance data.
PRODUCT SPECIFICATIONS
MODEL
RATED VOLTS/PH/HZ.
RATINGS ①
INDOOR COIL — Type
Rows — F.P.I.
Face Area (sq. ft.)
Tube Size (in.)
Refrigerant Control
Drain Conn. Size (in.) ②
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
F.L. Amps
FILTER
Filter Furnished?
Type Recommended
No.-Size-Thickness
REFRIGERANT
Ref. Line Connections
Coupling or Conn. Size — in. Gas
Coupling or Conn. Size — in. Liq.
DIMENSIONS
Crated (In.)
Uncrated
WEIGHT
Shipping (Lbs.) / Net (Lbs.)
GAM5B0C60M51SB
GAM5B0C60M51EA
208-230/1/60
See O.D. Specifications
Plate Fin
4 - 14
5.96
3/8
TXV
3/4 NPT
See Outline Drawing
Centrifugal
11 X 10
1
Direct - 5
See Fan Performance Table
1 - 1
1050
208-230/1/60
7.6
No
Throwaway
1 - 22 X 20 - 1 in.
R-410A
Brazed
7/8
3/8
H x W x D
63-1/4 x 27-1/2 x 25-3/4
61-3/4 x 23-1/2 x 21-3/4
180/170
GAM5B0A18M11SB
GAM5B0A18M11EA
208-230/1/60
See O.D. Specifications
Plate Fin
3 - 14
3.67
3/8
TXV
3/4 NPT
See Outline Drawing
Centrifugal
11 X 8
1
Direct - 5
See Fan Performance Table
1 - 1/3
1050
208-230/1/60
2.8
No
Throwaway
1 - 16 X 20 - 1 in.
R-410A
Brazed
3/4
3/8
H x W x D
51-3/8 x 20-1/2 x 25-3/4
49-7/8 x 17-1/2 x 21-3/4
126/120
GAM5B0A24M21SB
GAM5B0A24M21EA
208-230/1/60
See O.D. Specifications
Plate Fin
3 - 14
3.67
3/8
TXV
3/4 NPT
See Outline Drawing
Centrifugal
11 X 8
1
Direct - 5
See Fan Performance Table
1 - 1/3
1050
208-230/1/60
2.8
No
Throwaway
1 - 16 X 20 - 1 in.
R-410A
Brazed
3/4
3/8
H x W x D
51-3/8 x 20-1/2 x 25-3/4
49-7/8 x 17-1/2 x 21-3/4
126/120
GAM5B0B30M21SB
GAM5B0B30M21EA
208-230/1/60
See O.D. Specifications
Plate Fin
3 - 14
4.13
3/8
TXV
3/4 NPT
See Outline Drawing
Centrifugal
11 X 10
1
Direct - 5
See Fan Performance Table
1 - 1/3
1050
208-230/1/60
2.8
No
Throwaway
1 - 20 X 20 - 1 in.
R-410A
Brazed
3/4
3/8
H x W x D
53 x 24-1/4 x 25-3/4
51-1/2 x 21-1/4 x 21-3/4
140/132
GAM5B0B36M31SB
GAM5B0B36M31EA
208-230/1/60
See O.D. Specifications
Plate Fin
3 - 14
5.04
3/8
TXV
3/4 NPT
See Outline Drawing
Centrifugal
11 X 10
1
Direct - 5
See Fan Performance Table
1 - 1/2
1050
208-230/1/60
4.1
No
Throwaway
1 - 20 X 20 - 1 in.
R-410A
Brazed
7/8
3/8
H x W x D
57-1/4 x 24-1/4 x 25-3/4
55-3/4 x 21-1/4 x 21-3/4
150/142
GAM5B0C42M31SB
GAM5B0C42M31EA
208-230/1/60
See O.D. Specifications
Plate Fin
4 - 14
5.04
3/8
TXV
3/4 NPT
See Outline Drawing
Centrifugal
11 X 10
1
Direct - 5
See Fan Performance Table
1 - 1/2
1050
208-230/1/60
4.1
No
Throwaway
1 - 22 X 20 - 1 in.
R-410A
Brazed
7/8
3/8
H x W x D
58-1/2 x 27-1/2 x 25-3/4
56-7/8 x 23-1/2 x 21-3/4
163/153
GAM5B0C48M41SB
GAM5B0C48M41EA
208-230/1/60
See O.D. Specifications
Plate Fin
4 - 14
5.96
3/8
TXV
3/4 NPT
See Outline Drawing
Centrifugal
11 X 10
1
Direct - 5
See Fan Performance Table
1 - 3/4
1050
208-230/1/60
6.0
No
Throwaway
1 - 22 X 20 - 1 in.
R-410A
Brazed
7/8
3/8
H x W x D
63-1/4 x 27-1/2 x 25-3/4
61-3/4 x 23-1/2 x 21-3/4
176/166
②3/4" Male Plastic Pipe (Ref.: ASTM 1785-76)

3 GAM5-SF-1P-EN
Note: Heating and cooling speeds are the same, factory
set at Speed Tap #4.
Note: A “G” only signal from the comfort control will run
the blower at a lower speed, factory set at Speed Tap #1.
See the Sequence of Operation for additional information.
Note: Speed Tap 1 is NOT used for two stage systems.
Two stage systems will require an airflow adjustment.
AIRFLOW PERFORMANCE
GAM5B0A18M11SB, GAM5B0A18M11EA
EXTERNAL STATIC
(in w.g) AIRFLOW (CFM)
Speed Taps - 230 VOLTS Speed Taps - 208 VOLTS
5 4 † 3 2 1 5 4 † 3 2 1
0 1081 977 930 862 556 1078 974 927 858 553
0.1 1044 922 850 806 379 1038 916 844 800 373
0.2 995 880 787 702 202 987 871 778 693 193
0.3 956 830 738 621 - 944 819 727 610 -
0.4 914 788 692 562 - 900 774 677 548 -
0.5 872 749 646 502 - 855 732 629 485 -
0.6 838 707 590 445 - 819 687 570 425 -
0.7 802 650 528 389 - 779 628 505 367 -
0.8 755 598 478 327 - 730 573 453 302 -
0.9 708 539 420 - - 680 512 392 - -
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. Tap 1 is an continuous fan speed tap for single stage systems. Airflow adjustment is required for 2 stage systems.
See Airflow adjustment section.
5. † Factory Setting
GAM5B0A18M11SB, GAM5B0A18M11EA MINIMUM HEATER AIRFLOW CFM
Heater Minimum Air Speed Tap
Without Heat Pump With Heat Pump
BAYEAAC04BK1
BAYEAAC04LG1 Tap 3 Tap 4
BAYEAAC05BK1
BAYEAAC05LG1 Tap 3 Tap 4
BAYEAAC08BK1
BAYEAAC08LG1 Tap 3 Tap 4
BAYEAAC10BK1
BAYEAAC10LG1 Tap 3 ①Tap 5 ①
BAYEAAC10LG3 Tap 5 Tap 5 ②
BAYEABC15BK1 - -
BAYEABC20BK1 - -
① Heater not qualified for downflow installations
② Approved for 240 V only

GAM5-SF-1P-EN 4
AIRFLOW PERFORMANCE
GAM5B0A24M21SB, GAM5B0A24M21EA
EXTERNAL STATIC
(in w.g) AIRFLOW (CFM)
Speed Taps - 230 VOLTS Speed Taps - 208 VOLTS
5 4 † 3 2 1 5 4 † 3 2 1
0 1081 977 937 928 579 1078 974 933 925 576
0.1 1044 922 868 844 418 1038 916 863 838 412
0.2 995 880 817 777 306 987 871 808 768 298
0.3 956 830 767 729 - 944 819 756 717 -
0.4 914 788 719 682 - 900 774 705 668 -
0.5 872 749 680 635 - 855 732 663 618 -
0.6 838 707 628 577 - 819 687 609 557 -
0.7 802 650 566 515 - 779 628 544 492 -
0.8 755 598 511 467 - 730 573 486 442 -
0.9 708 539 460 407 - 680 512 432 - -
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. Tap 1 is an continuous fan speed tap for single stage systems. Airflow adjustment is required for 2 stage systems.
See Airflow adjustment section.
5. † Factory Setting
Note: Heating and cooling speeds are the same, factory
set at Speed Tap #4.
Note: A “G” only signal from the comfort control will run the
blower at a lower speed, factory set at Speed Tap #1. See
the Sequence of Operation for additional information.
Note: Speed Tap 1 is NOT used for two stage systems.
Two stage systems will require an airflow adjustment.
GAM5B0A24M21SB, GAM5B0A24M21EA MINIMUM HEATER AIRFLOW CFM
Heater Minimum Air Speed Tap
Without HP With HP
BAYEAAC04BK1
BAYEAAC04LG1 Tap 3 Tap 4
BAYEAAC05BK1
BAYEAAC05LG1 Tap 3 Tap 4
BAYEAAC08BK1
BAYEAAC08LG1 Tap 3 Tap 4
BAYEAAC10BK1
BAYEAAC10LG1 Tap 3 ①Tap 5 ①
BAYEAAC10LG3 Tap 5 Tap 5 ②
BAYEABC15BK1 - -
BAYEABC20BK1 - -
① Heater not qualified for downflow installations
② Approved for 240 V only

5 GAM5-SF-1P-EN
AIRFLOW PERFORMANCE
GAM5B0B30M21SB, GAM5B0B30M21EA
EXTERNAL STATIC
(in w.g) AIRFLOW (CFM)
Speed Taps - 230 VOLTS Speed Taps - 208 VOLTS
5 4 † 3 2 1 5 4 † 3 2 1
0 1282 1150 979 856 678 1279 1146 976 853 675
0.1 1238 1094 931 797 482 1232 1088 925 791 476
0.2 1186 1047 863 725 285 1177 1039 854 716 276
0.3 1141 986 803 647 88 1130 975 791 636 77
0.4 1091 935 721 555 - 1076 921 707 540 -
0.5 1033 866 649 461 - 1016 849 632 444 -
0.6 977 799 554 388 - 958 779 534 369 -
0.7 914 732 490 318 - 892 710 468 296 -
0.8 846 646 429 - - 821 621 404 - -
0.9 771 587 376 - - 743 560 348 - -
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. Tap 1 is an continuous fan speed tap for single stage systems. Airflow adjustment is required for 2 stage systems.
See Airflow adjustment section.
5. † Factory Setting
Note: Heating and cooling speeds are the same, factory
set at Speed Tap #4.
Note: A “G” only signal from the comfort control will run
the blower at a lower speed, factory set at Speed Tap #1.
See the Sequence of Operation for additional information.
Note: Speed Tap 1 is NOT used for two stage systems.
Two stage systems will require an airflow adjustment.
GAM5B0B30M21SB, GAM5B0B30M21EA MINIMUM HEATER AIRFLOW CFM
Heater Minimum Air Speed Tap
Without HP With HP
BAYEAAC04BK1
BAYEAAC04LG1 Tap 2 Tap 3
BAYEAAC05BK1
BAYEAAC05LG1 Tap 2 Tap 3
BAYEAAC08BK1
BAYEAAC08LG1 Tap 3 Tap 4
BAYEAAC10BK1
BAYEAAC10LG1 Tap 3 Tap 4
BAYEAAC10LG3 Tap 3 ①Tap 4 ①
BAYEABC15BK1 Tap 4 Tap 5
BAYEABC15LG3 Tap 4 Tap 5
BAYEABC20BK1 - -
BAYEACC25BK1 - -
① 208 V not approved for upflow installations

GAM5-SF-1P-EN 6
Note: Heating and cooling speeds are the same, factory
set at Speed Tap #4.
Note: A “G” only signal from the comfort control will run
the blower at a lower speed, factory set at Speed Tap #1.
See the Sequence of Operation for additional information.
Note: Speed Tap 1 is NOT used for two stage systems.
Two stage systems will require an airflow adjustment.
AIRFLOW PERFORMANCE
GAM5B0B36M31SB, GAM5B0B36M31EA
EXTERNAL STATIC
(in w.g) AIRFLOW (CFM)
Speed Taps - 230 VOLTS Speed Taps - 208 VOLTS
5 4 † 3 2 1 5 4 † 3 2 1
0 1438 1387 1197 1013 732 1435 1383 1194 1009 729
0.1 1394 1340 1143 945 552 1388 1334 1137 939 546
0.2 1350 1299 1090 892 413 1341 1291 1082 884 404
0.3 1301 1245 1031 817 305 1289 1233 1019 806 293
0.4 1253 1197 975 751 209 1239 1183 960 737 195
0.5 1205 1151 917 651 - 1188 1134 900 634 -
0.6 1155 1094 837 578 - 1136 1075 817 559 -
0.7 1099 1032 766 499 - 1077 1010 744 476 -
0.8 1039 972 691 453 - 1014 946 666 - -
0.9 964 889 633 409 - 936 861 605 - -
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. Tap 1 is an continuous fan speed tap for single stage systems. Airflow adjustment is required for 2 stage systems.
See Airflow adjustment section.
5. † Factory Setting
GAM5B0B36M31SB, GAM5B0B36M31EA MINIMUM HEATER AIRFLOW CFM
Heater Minimum Air Speed Tap
Without HP With HP
BAYEAAC04BK1
BAYEAAC04LG1 Tap 2 Tap 3
BAYEAAC05BK1
BAYEAAC05LG1 Tap 2 Tap 3
BAYEAAC08BK1
BAYEAAC08LG1 Tap 3 Tap 4
BAYEAAC10BK1
BAYEAAC10LG1 Tap 4 Tap 5
BAYEAAC10LG3 Tap 4 Tap 5
BAYEABC15BK1 Tap 4 Tap 5
BAYEABC15LG3 Tap 4 Tap 5
BAYEABC20BK1 - -
BAYEACC25BK1 - -

7 GAM5-SF-1P-EN
Note: Heating and cooling speeds are the same, factory
set at Speed Tap #4.
Note: A “G” only signal from the comfort control will run
the blower at a lower speed, factory set at Speed Tap #1.
See the Sequence of Operation for additional information.
Note: Speed Tap 1 is NOT used for two stage systems.
Two stage systems will require an airflow adjustment.
AIRFLOW PERFORMANCE
GAM5B0C42M31SB, GAM5B0C42M31EA
EXTERNAL STATIC
(in w.g) AIRFLOW (CFM)
Speed Taps - 230 VOLTS Speed Taps - 208 VOLTS
5 4 † 3 2 1 5 4 † 3 2 1
0 1644 1575 1401 1266 752 1641 1572 1398 1263 749
0.1 1596 1525 1346 1215 665 1590 1519 1340 1209 659
0.2 1550 1480 1300 1157 569 1542 1471 1291 1148 560
0.3 1509 1437 1252 1110 492 1497 1425 1241 1099 480
0.4 1463 1391 1205 1058 384 1449 1377 1191 1043 370
0.5 1420 1345 1151 980 327 1403 1328 1134 963 310
0.6 1376 1301 1085 917 259 1356 1282 1066 898 239
0.7 1332 1251 1020 865 - 1310 1228 998 842 -
0.8 1271 1179 969 813 - 1246 1154 944 788 -
0.9 1199 1119 924 747 - 1171 1091 897 719 -
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. Tap 1 is an continuous fan speed tap for single stage systems. Airflow adjustment is required for 2 stage systems.
See Airflow adjustment section.
5. † Factory Setting
GAM5B0C42M31SB, GAM5B0C42M31EA MINIMUM HEATER AIRFLOW CFM
Heater Minimum Air Speed Tap
Without HP With HP
BAYEAAC04BK1
BAYEAAC04LG1 Tap 2 Tap 3
BAYEAAC05BK1
BAYEAAC05LG1 Tap 2 Tap 3
BAYEAAC08BK1
BAYEAAC08LG1 Tap 2 Tap 3
BAYEAAC10BK1
BAYEAAC10LG1 Tap 2 Tap 3
BAYEAAC10LG3 Tap 2 Tap 3
BAYEABC15BK1 Tap 3 Tap 4
BAYEABC15LG3 Tap 3 Tap 4
BAYEABC20BK1 - -
BAYEACC25BK1 - -

GAM5-SF-1P-EN 8
Note: Heating and cooling speeds are the same, factory
set at Speed Tap #4.
Note: A “G” only signal from the comfort control will run
the blower at a lower speed, factory set at Speed Tap #1.
See the Sequence of Operation for additional information.
Note: Speed Tap 1 is NOT used for two stage systems.
Two stage systems will require an airflow adjustment.
AIRFLOW PERFORMANCE
GAM5B0C48M41SB, GAM5B0C48M41EA
EXTERNAL STATIC
(in w.g) AIRFLOW (CFM)
Speed Taps - 230 VOLTS Speed Taps - 208 VOLTS
5 4 † 3 2 1 5 4 † 3 2 1
0 1913 1770 1694 1593 866 1910 1767 1691 1590 863
0.1 1874 1730 1653 1547 791 1868 1724 1647 1541 785
0.2 1834 1690 1611 1505 699 1825 1681 1602 1496 690
0.3 1791 1646 1567 1456 620 1780 1635 1556 1445 609
0.4 1748 1600 1521 1410 537 1734 1586 1506 1396 522
0.5 1708 1556 1476 1367 453 1691 1539 1459 1350 437
0.6 1668 1516 1436 1326 370 1648 1496 1416 1306 351
0.7 1629 1475 1394 1283 - 1607 1452 1372 1260 -
0.8 1588 1435 1352 1236 - 1563 1410 1327 1211 -
0.9 1541 1390 1304 1183 - 1513 1362 1276 1156 -
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. Tap 1 is an continuous fan speed tap for single stage systems. Airflow adjustment is required for 2 stage systems.
See Airflow adjustment section.
5. † Factory Setting
GAM5B0C48M41SB, GAM5B0C48M41EA MINIMUM HEATER AIRFLOW CFM
Heater Minimum Air Speed Tap
Without HP With HP
BAYEAAC04BK1
BAYEAAC04LG1 Tap 2 Tap 3
BAYEAAC05BK1
BAYEAAC05LG1 Tap 2 Tap 3
BAYEAAC08BK1
BAYEAAC08LG1 Tap 2 Tap 3
BAYEAAC10BK1
BAYEAAC10LG1 Tap 2 Tap 3
BAYEAAC10LG3 Tap 2 Tap 3
BAYEABC15BK1 Tap 3 Tap 4
BAYEABC15LG3 Tap 3 Tap 4
BAYEABC20BK1 Tap 3 Tap 4
BAYEACC25BK1 Tap 4 Tap 5

9 GAM5-SF-1P-EN
Note: Heating and cooling speeds are the same, factory set at Speed Tap #4.
Note: A “G” only signal from the comfort control will run the blower at a lower speed, factory
set at Speed Tap #1. See the Sequence of Operation for additional information.
Note: Speed Tap 1 is NOT used for two stage systems. Two stage systems will require an
airflow adjustment.
AIRFLOW PERFORMANCE
GAM5B0C60M51SB, GAM5B0C60M51EA
EXTERNAL STATIC
(in w.g) AIRFLOW (CFM)
Speed Taps - 230 VOLTS Speed Taps - 208 VOLTS
5 4 † 3 2 1 5 4 † 3 2 1
0 2327 2020 1914 1819 1125 2324 2017 1910 1816 1122
0.1 2285 1980 1873 1780 990 2279 1974 1867 1774 984
0.2 2237 1944 1835 1740 831 2228 1935 1826 1731 822
0.3 2182 1908 1800 1705 600 2171 1896 1789 1693 589
0.4 2125 1869 1756 1659 331 2111 1854 1742 1645 317
0.5 2062 1830 1717 1620 249 2045 1813 1700 1603 232
0.6 1995 1747 1664 1575 187 1975 1727 1644 1555 168
0.7 1922 1707 1629 1540 - 1899 1685 1607 1518 -
0.8 1844 1673 1594 1502 - 1819 1648 1569 1477 -
0.9 1761 1629 1553 1464 - 1733 1601 1525 1436 -
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. Tap 1 is an continuous fan speed tap for single stage systems. Airflow adjustment is required for 2 stage systems.
See Airflow adjustment section.
5. If the air handler is applied in downflow or horizontal configurations, the airflow should not exceed 2000 CFM.
Airflow above 2000 CFM could result in water blow-off.
6. † Factory Setting
GAM5B0C60M51SB, GAM5B0C60M51EA MINIMUM HEATER AIRFLOW CFM
Heater Minimum Air Speed Tap
Without HP With HP
BAYEAAC04BK1
BAYEAAC04LG1 Tap 2 Tap 3
BAYEAAC05BK1
BAYEAAC05LG1 Tap 2 Tap 3
BAYEAAC08BK1
BAYEAAC08LG1 Tap 2 Tap 3
BAYEAAC10BK1
BAYEAAC10LG1 Tap 2 Tap 3
BAYEAAC10LG3 Tap 2 Tap 3
BAYEABC15BK1 Tap 3 Tap 4
BAYEABC15LG3 Tap 3 Tap 4
BAYEABC20BK1 Tap 3 Tap 4
BAYEACC25BK1 Tap 4 Tap 5 ①②
①If the air handler is applied in downflow or horizontal configurations, the airflow should
not exceed 2000 CFM. Airflow above 2000 CFM could result in water blow-off.
② Tap 5 can be used but only when the external static pressure is .6" or above.

GAM5-SF-1P-EN 10
WIRING DATA
GAM5B0A18M11SB, GAM5B0A18M11EA
Heater
Model
No.
No.
of
Circuits
240 VOLT 208 VOLT
Capacity Heater
Amps
per
Circuit
Minimum
Circuit
Ampacity
Maximum
Overload
Protection
Capacity Heater
Amps
per
Circuit
Minimum
Circuit
Ampacity
Maximum
Overload
Protection
kW BTUH kW BTUH
No Heater - - - 2.8* 4 15 - - 2.8* 4 15
BAYEAAC04BK1
BAYEAAC04LG1 1 3.84 13100 16.0 24 25 2.88 9800 13.8 21 25
BAYEAAC05BK1
BAYEAAC05LG1 1 4.80 16400 20.0 29 30 3.60 12300 17.3 25 25
BAYEAAC08BK1
BAYEAAC08LG1 1 7.68 26200 32.0 44 45 5.76 19700 27.7 38 40
BAYEAAC10BK1①
BAYEAAC10LG1① 1 9.60 32800 40.0 54 60 7.20 24600 34.6 47 50
BAYEAAC10LG3② 1-3 PH 9.60 32800 23.1 32 35 7.20 24600 20.0 28 30
Note: * Motor Amps
① Heater not qualified for downflow installations
② Approved for 240 V only with Heat Pump
WIRING DATA
GAM5B0A24M21SB, GAM5B0A24M21EA
Heater
Model
No.
No.
of
Circuits
240 VOLT 208 VOLT
Capacity Heater
Amps
per
Circuit
Minimum
Circuit
Ampacity
Maximum
Overload
Protection
Capacity Heater
Amps
per
Circuit
Minimum
Circuit
Ampacity
Maximum
Overload
Protection
kW BTUH kW BTUH
No Heater - - - 2.8* 4 15 - - 2.8* 4 15
BAYEAAC04BK1
BAYEAAC04LG1 1 3.84 13100 16.0 24 25 2.88 9800 13.8 21 25
BAYEAAC05BK1
BAYEAAC05LG1 1 4.80 16400 20.0 29 30 3.60 12300 17.3 25 25
BAYEAAC08BK1
BAYEAAC08LG1 1 7.68 26200 32.0 44 45 5.76 19700 27.7 38 40
BAYEAAC10BK1①
BAYEAAC10LG1① 1 9.60 32800 40.0 54 60 7.20 24600 34.6 47 50
BAYEAAC10LG3② 1-3 PH 9.60 32800 23.1 32 35 7.20 24600 20.0 28 30
Note: * Motor Amps
① Heater not qualified for downflow installations
② Approved for 240 V only with Heat Pump

11 GAM5-SF-1P-EN
WIRING DATA
GAM5B0B30M21SB, GAM5B0B30M21EA
Heater
Model
No.
No.
of
Circuits
240 VOLT 208 VOLT
Capacity Heater
Amps
per
Circuit
Minimum
Circuit
Ampacity
Maximum
Overload
Protection
Capacity Heater
Amps
per
Circuit
Minimum
Circuit
Ampacity
Maximum
Overload
Protection
kW BTUH kW BTUH
No Heater - - - 2.8* 4 15 - - 2.8* 4 15
BAYEAAC04BK1
BAYEAAC04LG1 1 3.84 13100 16.0 24 25 2.88 9800 13.8 21 25
BAYEAAC05BK1
BAYEAAC05LG1 1 4.80 16400 20.0 29 30 3.60 12300 17.3 25 25
BAYEAAC08BK1
BAYEAAC08LG1 1 7.68 26200 32.0 44 45 5.76 19700 27.7 38 40
BAYEAAC10BK1
BAYEAAC10LG1 1 9.60 32800 40.0 54 60 7.20 24600 34.6 47 50
BAYEAAC10LG3 1-3 PH 9.60 32800 23.1 32 35 7.20 24600 20.0 28 30
BAYEABC15LG3 ①1-3 PH 14.40 49200 34.6 46 50 10.80 36900 30.0 41 45
BAYEABC15BK1 - Circuit 1②
29.60 32800 40 54 60 7.20 24600 34.6 47 50
BAYEABC15BK1 - Circuit 2 4.80 16400 20 25 25 3.60 12300 17.3 22 25
Note: * Motor Amps
①208 V not approved for upflow installations
②MCA and MOP for circuit 1 contains the motor amps
WIRING DATA
GAM5B0B36M31SB, GAM5B0B36M31EA
Heater
Model
No.
No.
of
Circuits
240 VOLT 208 VOLT
Capacity Heater
Amps
per
Circuit
Minimum
Circuit
Ampacity
Maximum
Overload
Protection
Capacity Heater
Amps
per
Circuit
Minimum
Circuit
Ampacity
Maximum
Overload
Protection
kW BTUH kW BTUH
No Heater - - - 4.1* 5 15 - - 4.1* 5 15
BAYEAAC04BK1
BAYEAAC04LG1 1 3.84 13100 16.0 25 25 2.88 9800 13.8 22 25
BAYEAAC05BK1
BAYEAAC05LG1 1 4.80 16400 20.0 30 30 3.60 12300 17.3 27 30
BAYEAAC08BK1
BAYEAAC08LG1 1 7.68 26200 32.0 45 45 5.76 19700 27.7 40 40
BAYEAAC10BK1
BAYEAAC10LG1 1 9.60 32800 40.0 55 60 7.20 24600 34.6 48 50
BAYEAAC10LG3 1-3 PH 9.60 32800 23.1 33 35 7.20 24600 20.0 30 30
BAYEABC15LG3 1-3 PH 14.40 49200 34.6 48 50 10.80 36900 30.0 42 45
BAYEABC15BK1 - Circuit 1①
29.60 32800 40 55 60 7.20 24600 34.6 48 50
BAYEABC15BK1 - Circuit 2 4.80 16400 20 25 25 3.60 12300 17.3 22 25
Note: * Motor Amps
①MCA and MOP for circuit 1 contains the motor amps

GAM5-SF-1P-EN 12
WIRING DATA
GAM5B0C48M41SB, GAM5B0C48M41EA
Heater
Model
No.
No.
of
Circuits
240 VOLT 208 VOLT
Capacity Heater
Amps
per
Circuit
Minimum
Circuit
Ampacity
Maximum
Overload
Protection
Capacity Heater
Amps
per
Circuit
Minimum
Circuit
Ampacity
Maximum
Overload
Protection
kW BTUH kW BTUH
No Heater - - - 6.0* 8 15 - - 6.0* 8 15
BAYEAAC04BK1
BAYEAAC04LG1 1 3.84 13100 16.0 28 30 2.88 9800 13.8 25 25
BAYEAAC05BK1
BAYEAAC05LG1 1 4.80 16400 20.0 33 35 3.60 12300 17.3 29 30
BAYEAAC08BK1
BAYEAAC08LG1 1 7.68 26200 32.0 48 50 5.76 19700 27.7 42 45
BAYEAAC10BK1
BAYEAAC10LG1 1 9.60 32800 40.0 58 60 7.20 24600 34.6 51 60
BAYEAAC10LG3 1-3 PH 9.60 32800 23.1 36 40 7.20 24600 20.0 32 35
BAYEABC15LG3 1-3 PH 14.40 49200 34.6 50 50 10.80 36900 30.0 44 45
BAYEABC15BK1 - Circuit 1①
29.60 32800 40 58 60 7.20 24600 34.6 51 60
BAYEABC15BK1 - Circuit 2 4.80 16400 20 25 25 3.60 12300 17.3 22 25
BAYEABC20BK1 - Circuit 1①
29.60 32800 40 58 60 7.20 24600 34.6 51 60
BAYEABC20BK1 - Circuit 2 9.60 32800 40 50 50 7.20 24600 34.6 43 45
BAYEACC25BK1 - Circuit 1①
3
9.60 32800 40 58 60 7.20 24600 34.6 51 60
BAYEACC25BK1 - Circuit 2 9.60 32800 40 50 50 7.20 24600 34.6 43 45
BAYEACC25BK1 - Circuit 3 4.80 16400 20 25 25 3.60 12300 17.3 22 25
Note: * Motor Amps
①MCA and MOP for circuit 1 contains the motor amps
WIRING DATA
GAM5B0C42M31SB, GAM5B0C42M31EA
Heater
Model
No.
No.
of
Circuits
240 VOLT 208 VOLT
Capacity Heater
Amps
per
Circuit
Minimum
Circuit
Ampacity
Maximum
Overload
Protection
Capacity Heater
Amps
per
Circuit
Minimum
Circuit
Ampacity
Maximum
Overload
Protection
kW BTUH kW BTUH
No Heater - - - 4.1* 5 15 - - 4.1* 5 15
BAYEAAC04BK1
BAYEAAC04LG1 1 3.84 13100 16.0 25 25 2.88 9800 13.8 22 25
BAYEAAC05BK1
BAYEAAC05LG1 1 4.80 16400 20.0 30 30 3.60 12300 17.3 27 30
BAYEAAC08BK1
BAYEAAC08LG1 1 7.68 26200 32.0 45 45 5.76 19700 27.7 40 40
BAYEAAC10BK1
BAYEAAC10LG1 1 9.60 32800 40.0 55 60 7.20 24600 34.6 48 50
BAYEAAC10LG3 1-3 PH 9.60 32800 23.1 33 35 7.20 24600 20.0 30 30
BAYEABC15LG3 1-3 PH 14.40 49200 34.6 48 50 10.80 36900 30.0 42 45
BAYEABC15BK1 - Circuit 1①
29.60 32800 40 55 60 7.20 24600 34.6 48 50
BAYEABC15BK1 - Circuit 2 4.80 16400 20 25 25 3.60 12300 17.3 22 25
Note: * Motor Amps
①MCA and MOP for circuit 1 contains the motor amps

13 GAM5-SF-1P-EN
WIRING DATA
GAM5B0C60M51SB, GAM5B0C60M51EA
Heater
Model
No.
No.
of
Circuits
240 VOLT 208 VOLT
Capacity Heater
Amps
per
Circuit
Minimum
Circuit
Ampacity
Maximum
Overload
Protection
Capacity Heater
Amps
per
Circuit
Minimum
Circuit
Ampacity
Maximum
Overload
Protec-
tion
kW BTUH kW BTUH
No Heater - - - 7.6* 10 15 - - 7.6* 10 15
BAYEAAC04BK1
BAYEAAC04LG1 1 3.84 13100 16.0 30 30 2.88 9800 13.8 27 30
BAYEAAC05BK1
BAYEAAC05LG1 1 4.80 16400 20.0 35 35 3.60 12300 17.3 31 35
BAYEAAC08BK1
BAYEAAC08LG1 1 7.68 26200 32.0 50 50 5.76 19700 27.7 44 45
BAYEAAC10BK1
BAYEAAC10LG1 1 9.60 32800 40.0 60 60 7.20 24600 34.6 53 60
BAYEAAC10LG3 1-3 PH 9.60 32800 23.1 37 40 7.20 24600 20.0 34 35
BAYEABC15LG3 1-3 PH 14.40 49200 34.6 52 60 10.80 36900 30.0 46 50
BAYEABC15BK1 - Circuit 1①
29.60 32800 40 60 60 7.20 24600 34.6 53 60
BAYEABC15BK1 - Circuit 2 4.80 16400 20 25 25 3.60 12300 17.3 22 25
BAYEABC20BK1 - Circuit 1①
29.60 32800 40 60 60 7.20 24600 34.6 53 60
BAYEABC20BK1 - Circuit 2 9.60 32800 40 50 50 7.20 24600 34.6 43 45
BAYEACC25BK1②③- Circuit 1①
3
9.60 32800 40 60 60 7.20 24600 34.6 53 60
BAYEACC25BK1 - Circuit 2 9.60 32800 40 50 50 7.20 24600 34.6 43 45
BAYEACC25BK1 - Circuit 3 4.80 16400 20 25 25 3.60 12300 17.3 22 25
Note: * Motor Amps
①MCA and MOP for circuit 1 contains the motor amps
②If the air handler is applied in downflow or horizontal configurations, the airflow should not exceed 2000 CFM. Airflow above 2000 CFM could
result in water blow-off.
③Tap 5 can be used but only when the external static pressure is .6" or above.
DISTANCE FROM BELLY BAND TO SHAFT FACE OF MOTOR FOR MINIMUM VIBRATION
WHEEL
BLOWER HOUSING
BELLY BAND
MOTOR
A
A is determined per chart
Wheel is centered in
Blower Housing
MODEL DIM "A"
GAM5B0A18M11SB
GAM5B0A18M11EA
1-1/8
GAM5B0A24M21SB
GAM5B0A24M21EA
1-1/8
GAM5B0B30M21SB
GAM5B0B30M21EA
1-1/8
GAM5B0B36M31SB
GAM5B0B36M31EA
1-1/2
GAM5B0C42M31SB
GAM5B0C42M31EA
1-1/2
GAM5B0C48M41SB
GAM5B0C48M41EA
2-1/4
GAM5B0C60M51SB
GAM5B0C60M51EA
2-1/4

GAM5-SF-1P-EN 14
WIRING DIAGRAM FOR GAM5

15 GAM5-SF-1P-EN
GAM5 Sequence of Operation:
Abbreviations
See unit, electric heat, and field wiring diagrams for
additional information.
Continuous Fan
IMPORTANT: If the indoor air exceeds 60% relative
humidity or simply feels uncomfortably humid, it is
recommended that the indoor fan only be used in the
AUTO mode.
1. R-G contacts close on comfort control sending
24VAC to the G terminal on the fan relay
2. Low speed contacts close in the fan relay and send
24VAC on terminal labeled “LOW’.
3. Blower motor will now run on low speed. Speed is
field selectable.
Single Stage Heat Pump OD (cooling)
1. R-Y contacts close on the comfort control sending
24VAC to the Y terminal on the fan relay and the Y
in the outdoor unit.
2. R-G contacts also close on the comfort control
sending 24VAC to the G terminal on the fan relay.
(The combination of 24VAC on terminals Y and G
on the fan relay will close the high speed contacts
of the fan relay)
3. R-O contacts on the comfort control close sending
24VAC to the O terminal on the switch over valve
in the outdoor unit.
4. The blower motor will now run on high speed.
Speed is field selectable.
Two Stage Heat Pump OD (cooling)
1) R-Y1 contacts close on the comfort control sending
24VAC to Y1 at the outdoor unit.
2) R-G contacts close on the comfort control sending
24VAC to the G terminal of the fan relay. (G only
will run the fan on low stage setting)
3) R-O contacts close on the comfort control sending
24VAC to O on the switchover valve in the outdoor
unit.
4) R-Y2 contacts close on the comfort control sending
24VAC to Y2 at the outdoor unit. 24VAC is also
sent to the Y terminal on the fan relay. The combi-
nation of 24VAC on terminals Y and G on the fan
relay will close the high speed contacts on the fan
relay.
Single Stage Heat Pump OD (heating)
1. R-Y contacts close on the comfort control sending
24VAC to Y terminal on the fan relay and the Y in
the outdoor unit.
2. R-G contacts also close on the comfort control
sending 24VAC to the G terminal on the fan relay.
(The combination of 24VAC on terminals Y and G
on the fan relay will close the high speed con-
tacts of the fan relay) The blower motor will now
run on high speed.
3. The blower motor will now run on high speed.
Two Stage Heat Pump OD (heating)
1) R-Y1 contacts close on the comfort control send-
ing 24VAC to Y1 at the outdoor unit.
2) R-G contacts close on the comfort control sending
24VAC to the G terminal of the fan relay. (G only
will run the fan on low stage setting)
3) R-Y2 contacts close on the comfort control send-
ing 24VAC to Y2 at the outdoor unit. 24VAC is
also sent to the Y terminal on the fan relay. The
combination of 24VAC on terminals Y and G on
the fan relay will close the high speed contacts
on the fan relay.
Single Stage Cooling OD
1. R-Y contacts close on the comfort control sending
24VAC to Y terminal on fan relay and the Y in the
outdoor unit.
2. R-G contacts also close on the comfort control
sending 24VAC to the G terminal on the fan relay.
(The combination of 24VAC on terminals Y and G
on the fan relay will close the high speed con-
tacts of the fan relay)
3. The blower motor will now run on high speed
Two Stage Cooling OD
1. R-Y1 contacts close on the comfort control send-
ing 24VAC to Y1 at the outdoor unit.
2. R-G contacts close on the comfort control sending
24VAC to the G terminal of the fan relay. (G only
will run the fan on low stage setting)
3. R-Y2 contacts close on the comfort control send-
ing 24VAC to Y2 at the outdoor unit. 24VAC is
also sent to the Y terminal on the fan relay. The
combination of 24VAC on terminals Y and G on
the fan relay will close the high speed contacts
on the fan relay.
SEQUENCE OF OPERATION FOR GAM5 AIR HANDLERS

GAM5-SF-1P-EN 16
Electric Heating
1. R-W contacts close on the comfort control sending
24VAC to the W terminal on the fan relay. 24VAC is
also sent to EHC to energize the heat relay.
2. R-G contacts close on the comfort control send-
ing 24VAC to the G terminal on the fan relay. (The
combination of 24VAC on terminals W and G on
the fan relay will close the high speed contacts of
the fan relay)
3. WJ contacts on the fan relay close providing an
interlock circuit to allow the electric heat relays to
operate.
The comfort control must be setup to control R-G con-
tacts with a call for electric heat. This closes the
interlock circuit and allows the heat relay circuit to
be energized.
SUBCOOLING ADJUSTMENT
The following combinations should be charged to 8 de-
grees sub-cooling to maintain ratings.
Indoor Unit Model No. Outdoor Unit Model No.
GAM5B0A18M11SB
GAM5B0A18M11EA
4A6B4018E1
4A6H5018E1
GAM5B0A24M21SB
GAM5B0A24M21EA
4A6B4024E1
4A6H5024E1
GAM5B0B30M21SB
GAM5B0B30M21EA
4A6B4030E1
4A6H5030E1
GAM5B0B36M31SB
GAM5B0B36M31EA
4A6B4036E1
4A6H5036E1
GAM5B0C42M31SB
GAM5B0C42M31EA
4A6B4042E1
4A6H5042E1
GAM5B0C48M41SB
GAM5B0C48M41EA
4A6B4048E1
4A6H5048E1
4A6B4049E1
4A6H5049E1
GAM5B0C60M51SB
GAM5B0C60M51EA
4A6B4060E1
4A6H5060E1
4A6B4061E1
4A6H5061E1
All other matches must be charged per the nameplate
charging instructions.
The following combinations should be charged to 8 de-
grees sub-cooling to maintain ratings.
Indoor Unit Model No. Outdoor Unit Model No.
GAM5B0A18M11SB
GAM5B0A18M11EA
4TWB4018E1
4TWR5018E1
GAM5B0A24M21SB
GAM5B0A24M21EA
4TWB4024E1
4TWR5024E1
GAM5B0B30M21SB
GAM5B0B30M21EA
4TWB4030E1
4TWR5030E1
GAM5B0B36M31SB
GAM5B0B36M31EA
4TWB4036E1
4TWR5036E1
GAM5B0C42M31SB
GAM5B0C42M31EA
4TWB4042E1
4TWR5042E1
GAM5B0C48M41SB
GAM5B0C48M41EA
4TWB4048E1
4TWR5048E1
4TWB4049E1
4TWR5049E1
4TWX5049E1
GAM5B0C60M51SB
GAM5B0C60M51EA
4TWB4060E1
4TWR5060E1
4TWB4061E1
4TWR5061E1
4TWX5061E1
All other matches must be charged per the nameplate
charging instructions.
SEQUENCE OF OPERATION FOR GAM5 AIR HANDLERS

17 GAM5-SF-1P-EN
16 SEER Cooling Models
OD MODEL ID MODEL SPEED TAP SYSTEM STAGE CFM ESP
4TTR6024A*
4TTX6024G*
4A7A6024G*
GAM5B0A24M21SB
GAM5B0A24M21EA
4 H 800 0.333
2 L 725 0.273
4TTR6036A*
4TTX6036G*
4A7A6036G*
GAM5B0B36M31SB
GAM5B0B36M31EA
4 H 1225 0.357
3 L 1070 0.272
4TTR6036A*
4TTX6036G*
4A7A6036G*
GAM5B0C42M31SB
GAM5B0C42M31EA
3 H 1225 0.400
2 L 1115 0.331
4TTR6048A*
4TTX6048G*
4A7A6048G*
GAM5B0C48M41SB
GAM5B0C48M41EA
3 H 1500 0.381
2 L 1415 0.339
4TTR6060A*
4TTX6060E*
4A7A6060E*
GAM5B0C60M51SB
GAM5B0C60M51EA
3 H 1700 0.390
2 L 1645 0.365
17/18 SEER Cooling Models
OD MODEL ID MODEL SPEED TAP SYSTEM STAGE CFM ESP
4TTR7024A*
4TTX8024A*
4A7A7024A*
GAM5B0A24M21SB
GAM5B0A24M21EA
4 H 800 0.333
2 L 725 0.273
4TTR7036A*
4TTX8036A*
4A7A7036A*
GAM5B0B36M31SB
GAM5B0B36M31EA
4 H 1225 0.357
3 L 1070 0.272
4TTR7036A*
4TTX8036A*
4A7A7036A*
GAM5B0C42M31SB
GAM5B0C42M31EA
3 H 1225 0.400
2 L 1115 0.331
4TTR7048A*
4TTX8048A*
4A7A7048A*
GAM5B0C48M41SB
GAM5B0C48M41EA
3 H 1475 0.449
2 L 1390 0.399
4TTR7060A*
4TTX8060A*
4A7A7060A*
GAM5B0C60M51SB
GAM5B0C60M51EA
3 H 1700 0.390
2 L 1645 0.365
NOTES
1) Speed Tap settings must be changed for two stage operation
2) Speed Tap settings listed are for the rated ESP, settings may be different depending on your ESP
3) Minimum airflow for electric heat must be maintained. (High Stage)
Adjustments for 2-Stage outdoor AC models

GAM5-SF-1P-EN 18
16 SEER Heat Pump Models
OD MODEL ID MODEL SPEED TAP SYSTEM STAGE CFM ESP
4TWR6024A*④
4TWX6024G*④
4A6H6024G*④
GAM5B0A24M21SB
GAM5B0A24M21EA
4 H 800 0.333
3 L 750 0.293
4TWR6024A*
4TWX6024G*
4A6H6024G*
GAM5B0B30M21SB
GAM5B0B30M21EA
3 H 750 0.383
2 L 665 0.301
4TWR6036A*
4TWX6036E*
4A6H6036E*
GAM5B0B36M31SB
GAM5B0B36M31EA
4 H 1150 0.500
3 L 1005 0.382
4TWR6048A*
4TWX6048G*
4A6H6048G*
GAM5B0C42M31SB
GAM5B0C42M31EA
4 H 1375 0.468
3 L 1235 0.378
4TWR6048A*
4TWX6048G*
4A6H6048G*
GAM5B0C48M41SB
GAM5B0C48M41EA
4 H 1575 0.400
2 L 1420 0.325
4TWR6060A*
4TWX6060E*
4A6H6060E*
GAM5B0C60M51SB
GAM5B0C60M51EA
3 H 1700 0.390
2 L 1645 0.365
17/18 SEER Heat Pump Models
OD MODEL ID MODEL SPEED TAP SYSTEM STAGE CFM ESP
4TWR7024A*④
4TWX8024A*④
4A6H7024A*④
GAM5B0A24M21SB
GAM5B0A24M21EA
4 H 800 0.333
3 L 750 0.293
4TWR7024A*
4TWX8024A*
4A6H7024A*
GAM5B0B30M21SB
GAM5B0B30M21EA
3 H 750 0.383
2 L 665 .0301
4TWR7036A*
4TWX8036A*
4A6H7036A*
GAM5B0B36M31SB
GAM5B0B36M31EA
4 H 1150 0.500
3 L 1005 0.382
4TWR7048A*
4TWX8048A*
4A6H7048A*
GAM5B0C48M41SB
GAM5B0C48M41EA
4 H 1575 0.400
2 L 1420 0.325
4TWR7060A*
4TWX8060A*
4A6H7060A*
GAM5B0C60M51SB
GAM5B0C60M51EA
3 H 1700 0.390
2 L 1645 0.365
NOTES
1) Speed Tap settings must be changed for two stage operation
2) Speed Tap settings listed are for the rated ESP, settings may be different depending on your ESP
3) Minimum airflow for electric heat must be maintained. (High Stage)
4) Subcooling must be adjusted to 9°F for this match
System Matched with: Indoor Unit Model No. Outdoor Unit Model No. Subcooling
16-18 SEER HP GAM5B0A24M21SB
GAM5B0A24M21EA
4TWR6024A*, 4TWX6024G*
4A6H6024G*, 4TWR7024A*
4TWX8024A*, 4A6H7024A*
9°
All other matches must be charged per the nameplate charging instructions.
Adjustments for 2-Stage outdoor HP models

19 GAM5-SF-1P-EN
Is sub cooling at the
outdoor unit between
8 to 12F?
NO
YES Is superheat
< 5F? YES
Correct air
flow
problem
Is air flow at least
350 CFM per ton?
YES
NO
Remove sensing bulb from the
suction line. Measure superheat
at indoor coil while holding the
bulb in bare hand for one minute.
Does superheat decrease?
Measure superheat at indoor coil
while placing the bulb in an ice
and water bath for one minute.
Does superheat increase?
YES
Replace the
TXV
NO
TXV is OK
NO
Is superheat
< 20F?
NO
YES
NO
Is indoor
temperature more
than 85F?
NO
Is sub cooling less
than 8F?
YES
Confirm that charge
is correct and look
for dirty or restricted
outdoor coil.
Confirm that
charge is
correct.
NO
Before starting, insure the
blower wheel, indoor and outdoor
coils are clean.
Is the liquid line
temperature at indoor
coil within 8F of outdoor
liquid line temperature?
YES
Verify line set is
sized properly
for application
NO
The system is running at max
capacity and this may be
causing the High superheat.
Wait until indoor temperature
is less than 80F and check
superheat again.
YES
YES

Constant Torque Motor
Troubleshooting
Does blower
wheel turn
freely?
Turn off power.
Check set screw
position and motor
bearings. Correct
or replace as
needed.
Check operation
NO
Is ~230 VAC measured
between terminals “L” &
“N” on the motor?
See Figure 1
YES
High voltage should
always be present.
Correct high voltage
wiring.
NO
Is ~24 VAC measured
between the wire connected
to “C” on the motor and the
wire connected to terminal 1
thru 5 on the motor?
See Figure 2
YES
YES
Replace motor.
Check operation
Motor does not run
Turn comfort to
“FAN ON” mode
Is 24VAC measured
from terminal 8(G) to
terminal 9(BL) on the
fan control?
NO
Correct wiring.
Check operation
NO
Replace fan control.
Check operation
YES
This terminal block is located on
the motor. Look for labels below
on the motor side of the
connection.
FIGURE 1
FIGURE 2
NOTE: The fan control has a 90
second “OFF” delay that is
factory set on. To turn this
feature off, turn dip switch to 0
and cycle power to the unit.
CONSTANT TORQUE MOTOR TROUBLESHOOTING FOR GAM5
About Trane and American Standard Heating and Air Conditioning
Trane and American Standard create comfortable, energy efficient indoor environments for residential applications.
For more information, please visit www.trane.com or www.americanstandardair.com
The manufacturer has a policy of continuous data improvement and it reserves the right to change design and specifications without notice. We are
committed to using environmentally conscious print practices.
© 2020
GAM5-SF-1P-EN 15 April 2020
Supersedes GAM5-SF-1N-EN (September 2018)