York AHP18 THRU 60 Quick start guide

TECHNICAL GUIDE
SINGLE PIECE AIR HANDLERS
FOR USE WITH SPLIT-SYSTEM
COOLING & HEAT PUMPS
MODELS: AHP18 THRU 60
Due to continuous product improvement,
specifications are subject to change without notice.
Visit us on the web at www.york.com
Additional rating information can be found at
www.ahridirectory.org.
ISO 9001
Certified Quality
Management System
255029-YTG-M-0610
FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE
DESCRIPTION
This fan coil line offers the ultimate in application flexibility. The
AHP (non-variable speed motor) models can be ordered upflow
only or as multi-position. The multi-position model can be
installed in downflow, upflow, horizontal right or left without the
need for additional field installed kits.
All UPG air handlers and coils utilize a TXV to provide our cus-
tomers with the optimum performance and refrigerant control
required for 13+ SEER systems. Air handlers can be ordered
with R410A TXV factory installed. Air handlers are also avail-
able with “Flex-coils” without a factory installed metering device.
For added flexibility, an R22 or R410A TXV can be field
installed to meet your refrigerant choice.
FEATURES
Thermal Expansion Valve - Provides the ultimate refrigerant
control required for today’s high efficient product. The UPG bolt-
on TXV provides the added flexibility to convert the air handler
to the required refrigerant. The UPG TXV is a true bolt-on which
does not require brazing to replace or install.
Insulated Cabinet - All air handler cabinets are thermally insu-
lated with 1” foil faced insulation (R-4.2) to prevent sweating.
For applications in extreme humidity conditions an optional,
field installed, external insulating wrap kit is also available.
Factory - Sealed to achieve 2% or less leakage rate with or
without field installed filter at 1.0” water gauge external static
pressure.
Durable Finish Inside and Out - Air handler casings are made
of pre-painted galvanized steel which provides a better paint to
steel bond that resists corrosion and rust creep. All internal coil
sheet metal parts are made of G90 galvanized.
High Efficiency - 5 ton unit has high efficiency DC motor.
4 HK Heat Kit - Installation friendly, easy service, more robust,
unique to new design.

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2Johnson Controls Unitary Products
DIMENSIONS
10-3/8” F
CIRCUIT BREAKER
PANEL
BOTTOM INLET
DIMENSIONS
DRAIN PAN CONNECTIONS
FOR HORIZONTAL APPLICATIONS
J
BLOWER
COMPARTMENT
REFRIGERANT
CONNECTIONS
DRAIN CONNECTIONS
FOR UPFLOW AND
DOWNFLOW
APPLICATIONS
7-11/32”
D
B
A
K
C
1-1/2” 18-9/32” E
TOP OUTLET
DIMENSIONS
FILTER
ACCESS
Dimensions
MODELS
Dimensions Wiring Knockouts1Refrigerant
Connections
Line Size
ABCDEF JK
Height Width Depth Power Control Liquid Vapor
AHP18B3XH21
AHP18B4FH21 46 17.5
21.5
12-3/8 13-29/32 14-19/32 7/8” (1/2”) 1 3/8” (1”)
1 23/32” (1 1/4”) 7/8” (1/2”) 3/8” 3/4”
AHP24B3XH21
AHP24B4FH21 46 17.5 12-3/8 13-29/32 14-19/32 7/8” (1/2”)
1 3/8” (1”)
1 23/32” (1 1/4”) 7/8” (1/2”) 3/8” 3/4”
AHP30B3XH21
AHP30B4GH21
AHP30B4HH21
AHP30B4FH21
46 17.5 12-3/8 13-29/32 14-19/32 7/8” (1/2”) 1 3/8” (1”)
1 23/32” (1 1/4”) 7/8” (1/2”) 3/8” 3/4”
AHP36C3XH21
AHP36C4GH21
AHP36C4HH21
AHP36C4FH21
52 21 17-1/8 17-13/32 18-3/32 7/8” (1/2”) 1 3/8” (1”)
1 23/32” (1 1/4”) 7/8” (1/2”) 3/8” 7/8”
AHP42C3XH21
AHP42C4HH21 52 21 17-1/8 17-13/32 18-3/32 7/8” (1/2”)
1 3/8” (1”)
1 23/32” (1 1/4”) 7/8” (1/2”) 3/8” 7/8”
AHP48D3XH21
AHP48D4HH21
AHP48D4JH21 57 24.5 22-1/8 20-29/32 21-19/32 7/8” (1/2”)
1 3/8” (1”)
1 23/32” (1 1/4”) 7/8” (1/2”) 3/8” 7/8”
AHP60D3XH21
AHP60D4JH21 57 24.5 22-1/8 20-29/32 21-19/32 7/8” (1/2”)
1 3/8” (1”)
1 23/32” (1 1/4”) 7/8” (1/2”) 3/8” 7/8’
1. Actual size (Conduit size).
H indicates 4 position model.

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Johnson Controls Unitary Products 3
COIL TECHNICAL DATA
Models Application Refrig.
Conn. Types Face Area (Sq. Ft.) Rows Deep Fin Per In. Coil Size Tube
Geometry Tube Dia. Fin Type TXV
AHP18B3XH21 Cooling /
Heat Pump Sweat 3.40 2 14 (2) 14 x 17.5 1 x 0.866 3/8 Enhanced None
AHP18B4FH21 4E
AHP24B3XH21 Cooling /
Heat Pump Sweat 3.89 2 14 (2) 16 x 17.5 1 x 0.866 3/8 Enhanced None
AHP24B4FH21 4F
AHP30B3XH21 Cooling /
Heat Pump Sweat 3.89 3 12 (2) 16 x 17.5 1 x 0.866 3/8 Enhanced
None
AHP30B4GH21 4G
AHP30B4HH21 4H
AHP30B4FH21 4M
AHP36C3XH21 Cooling /
Heat Pump Sweat 4.86 3 12 (2) 20 x 17.5 1 x 0.866 3/8 Enhanced
None
AHP36C4GH21 4G
AHP36C4HH21 4H
AHP36C4FH21 4M
AHP42C3XH21 Cooling /
Heat Pump Sweat 4.86 3 12 (2) 20 x 17.5 1 x 0.866 3/8 Enhanced None
AHP42C4HH21 4H
AHP48D3XH21 Cooling /
Heat Pump Sweat 5.83 3 11 (2) 24 x 17.5 1 x 0.866 3/8 Enhanced None
AHP48D4HH21 4H
AHP48D4JH21 4J
AHP60D3XH21 Cooling /
Heat Pump Sweat 5.83 3 11 (2) 24 x 17.5 1 x 0.866 3/8 Enhanced None
AHP60D4JH21 4J
Note: H models are available with a factory installed horizontal drain pan.
COOLING CAPACITY
Models Rated CFM Entering Air °F
(Dry / Wet Bulb) MBH@ Evaporator Temperature and Corresponding Pressure °F / PSIG
35 / 61.5 40 / 68.5 45 / 76.0 50 / 84.0
FULL-CASED “A” TYPE MULTI-POSITION
AHP18B**H21 650
85/72 24.5 22.3 19.9 17.3
80/67 22.6 20.3 18.0 15.6
75/62 18.5 16.4 14.2 12.0
70/57 15.0 13.1 10.9 8.5
AHP24B**H21 800
85/72 35.0 31.8 28.4 24.7
80/67 32.2 29.1 25.7 22.3
75/62 26.4 23.4 21.0 17.1
70/57 21.4 18.6 20.2 12.1
AHP30B**H21 1050
85/72 41.5 37.8 33.7 29.5
80/67 36.2 32.4 28.6 24.5
75/62 29.1 25.3 24.0 19.2
70/57 24.1 21.5 18.7 15.8
AHP36C**H21 1200
85/72 51.3 46.7 41.7 36.8
80/67 41.1 36.3 31.8 27.1
75/62 32.1 27.0 29.4 21.9
70/57 27.6 25.4 23.5 18.3
AHP42C**H21 1400
85/72 88.4 76.0 63.3 50.0
80/67 70.8 59.4 48.4 37.0
75/62 55.2 43.9 35.8 29.9
70/57 47.4 41.5 32.37 25.24
AHP48D**H21 1600
85/72 100.5 86.4 72.0 56.8
80/67 80.4 67.5 55.0 42.1
75/62 62.7 49.9 40.7 34.0
70/57 53.9 47.2 36.81 28.71
AHP60D**H21 1850
85/72 119.9 101.0 82.0 62.2
80/67 96.0 79.2 62.6 45.8
75/62 74.8 58.6 46.2 37.0
70/57 64.3 55.4 43.2 33.7

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ACCESSORIES
Refer to Price Manual for specific model numbers.
TXV Kits - TXV kits are available for “Flex-coil” applications and
converting R22 to R410A or as a service replacement. All kits
are bolt-on and require no brazing to install.
Non-Combustible Bases - A combustible floor base accessory
is available, if required by local codes, when the air handler is
installed in the downflow position on a combustible material.
Electric Heaters - 4HK models shown under electrical data
include sequential operation and temperature dual limit
switches for safe, efficient operation. Circuit breakers are pro-
vided where shown.
External Insulating Wrap Kit - Provides a vinyl covered ther-
mal insulation wrap, providing additional thermal insulation pro-
tection to prevent sweating in applications where extreme high
humidity is present. Air Handler cover (or wrap) has Velcro
edges for easy installation and access.
LIMITATIONS
These units must be wired and installed in accordance with all
national and local safety codes.
Voltage limits are as follows:
Airflow must be within the minimum and maximum limits
approved for electric heat, evaporator coils and outdoor units.
All Air handler units are UL Listed up to 0.50" w.c. external static pressure, including air filter, wet coil, and largest KW size heater, unless otherwise noted.
Air Handler
Voltage Voltage code
1Normal Operating
Voltage Range
1. Rated in accordance with ARI Standard 110, utilization range “A”.
208/230-1-60 06 187-253
220/240-1-50 93 198-264
Entering Air Temperature Limits
Wet Bulb Temp.°F Dry Bulb Temp. °F
Min. Max. Min. Max.
57 72 65 95
AIR FLOW DATA - 60 Hz MODELS
Models Blower Motor
Speed
208 Volt
CFM1 @ External Static Pressure - IWC
1. Includes return air filter and coil.
0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00
AHP18B**H21 High 1142 1096 1053 997 925 828 721 210 N/A N/A
Medium 677 652 634 615 572 486 295 120 N/A N/A
Low 442 427 395 361 289 209 114 N/A N/A N/A
AHP24B**H21 High 1084 1038 985 935 856 762 665 602 484 333
Medium 840 807 767 693 610 550 485 387 323 221
Low 654 614 548 483 420 349 302 218 179 130
AHP30B**H21 High 1244 1184 1138 1079 1004 903 841 674 580 457
Medium 956 913 868 815 748 663 574 487 384 N/A
Low 941 904 862 806 731 643 566 480 361 226
AHP36C**H21 High 1719 1650 1572 1482 1386 1273 1108 925 785 644
Medium 1119 1097 1062 1019 935 827 743 637 479 337
Low 929 910 877 825 760 685 616 508 372 221
AHP42C**H21 High 1719 1650 1572 1482 1386 1273 1108 925 785 644
Medium 1119 1097 1062 1019 935 827 743 637 479 337
Low 929 910 877 825 760 685 616 508 372 221
AHP48D**H21 High 1941 1818 1675 1532 1269 870 703 362 146 N/A
Medium 1594 1474 1409 1260 1021 802 524 215 144 N/A
Low 1241 1204 1128 1014 819 659 385 165 N/A N/A
AHP60D**H21
High / #1 2126 2093 2074 2048 1991 1941 1801 1569 1461 1366
Medium High / #2 1863 1842 1804 1800 1758 1730 1662 1503 1383 1306
Medium / #3 1642 1603 1593 1568 1523 1471 1410 1334 1307 1216
Medium Low / #4 1482 1468 1427 1370 1324 1274 1233 1196 1153 1099
Low / #5 1268 1220 1169 1118 1070 1037 982.5 949.1 891.9 831

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Johnson Controls Unitary Products 5
All air handler units are UL Listed up to 0.50" w.c. external static pressure, including air filter, wet coil, and largest KW size heater, unless otherwise
noted.
AIR FLOW DATA - 60 Hz MODELS
Models Blower Motor
Speed
230 Volt
CFM1 @ External Static Pressure - IWC
0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00
AHP18B**H21 High 1054 989 923 862 791 665 581 202 N/A N/A
Medium 782 762 716 670 613 536 315 121 N/A N/A
Low 541 519 479 445 397 298 168 N/A N/A N/A
AHP24B**H21 High 1232 1167 1098 1025 940 826 731 622 486 345
Medium 966 915 868 799 724 641 540 452 347 224
Low 785 740 684 618 532 446 364 296 192 131
AHP30B**H21 High 1434 1359 1297 1220 1138 1050 916 782 640 519
Medium 1112 1076 1031 970 907 802 629 507 394 380
Low 885 854 821 751 686 625 547 459 350 N/A
AHP36C**H21 High 1760 1681 1607 1538 1456 1360 1322 1260 966 770
Medium 1320 1284 1255 1207 1146 1075 988 846 729 572
Low 1146 1119 1090 1038 992 972 841 725 617 496
AHP42C**H21 High 1883 1764 1657 1543 1435 1327 1210 902 714 527
Medium 1625 1510 1429 1339 1256 1172 1038 765 609 412
Low 1260 1225 1179 1110 1047 973 785 638 500 340
AHP48D**H21 High 2029 1944 1837 1743 1643 1537 1435 1320 1064 789
Medium 1805 1730 1649 1566 1479 1385 1286 1147 851 683
Low 1491 1441 1388 1328 1253 1174 1076 867 726 555
AHP60D**H21
High / #1 2256 2226 2198 2159 2095 1959 1914 1776 1519 1380
Medium High / #2 1990 1963 1935 1893 1857 1820 1783 1698 1486 1353
Medium / #3 1774 1748 1704 1670 1635 1593 1534 1480 1384 1325
Medium Low / #4 1557 1523 1483 1432 1389 1329 1265 1235 1198 1167
Low / #5 1340 1300 1253 1198 1126 1079 1037 1007 954 912
1. Includes return air filter and coil.
APPLICATION FACTORS - RATED CFM VS. ACTUAL CFM
% Of Rated Airflow 80% 90% Rated CFM 110% 120%
Capacity Factor 0.96 0.98 1.00 1.02 1.03

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6Johnson Controls Unitary Products
PHYSICAL & ELECTRICAL DATA
Models AHP18B**H21 AHP24B**H21 AHP30B**H21 AHP36C**H21
Blower - Diameter x Width 9 x 6 10 x 9 10 x 9 10 x 10
Motor HP 1/3 HP 1/4 HP 1/2 HP 3/4 HP
Nominal RPM 1075 1075 1075 1075
Voltage 230
Amps Full Load (230) 1.9 1.5 2.2 3.6
Filter1Type DISPOSABLE OR PERMANENT
Size 16 x 20 x 1 16 x 20 x 1 16 x 20 x 1 20 x 20 x 1
Permanent Type Kit 1PF0601BK 1PF0601BK 1PF0601BK 1PF0602BK
Shipping / Operating Weight (lbs.) - N Models 128/122 132/126 139/133 162/156
Shipping / Operating Weight (lbs.) - H Models 131/125 135/129 142/136 165/159
Models AHP42C**H21 AHP48D**H21 AHP60D**H21
Blower - Diameter x Width 10 x 10 10 x 10 11 x 10
Motor HP 3/4 HP 3/4 HP 1 HP
Nominal RPM 1075 1075 1050
Voltage 230
Amps Full Load (230) 3.8 3.8 7.6
Filter1Type DISPOSABLE OR PERMANENT
Size 20 x 20 x 1 22 x 20 x 1 22 x 20 x 1
Permanent Type Kit 1PF0602BK 1PF0603BK 1PF0603BK
Shipping / Operating Weight (lbs.) - N Models 164/158 AHP - 186/175
SHP - 182/171 AHP - 189/178 SHP - 185 /174
Shipping / Operating Weight (lbs.) - H Models 167/161 190/179 193/182
1. Field Supplied.
ELECTRICAL DATA - COOLING ONLY (60 Hz)
Models
Total Motor Amps Minimum Circuit Ampacity Max. O.C.P.1
Amps/Type Minimum Wire
Size A.W.G.
60 Hertz 60 Hertz
208V230V208V230V
AHP18B**H21 1.7 1.9 2.1 2.4 15 14
AHP24B**H21 1.4 1.5 1.8 1.9 15 14
AHP30B**H21 2 2.2 2.5 2.8 15 14
AHP36C**H21 3.3 3.6 4.1 4.5 15 14
AHP42C**H21 3.4 3.8 4.3 4.8 15 14
AHP48D**H21 3.4 3.8 4.3 4.8 15 14
AHP60D**H21 7.6 7.6 9.5 9.5 15 14
1. OCP = Over Current Protection device, must be HACR type Circuit Breaker or Time Delay fuse.

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Johnson Controls Unitary Products 7
* May be 0 (no breaker) or 1 (with breaker).
ELECTRICAL DATA - 208/230-1-60
Models Heater
Models* Max. Static Min. Speed Tap
Total Heat1kW Staging
kW MBH W1 Only W2 Only W1 + W2
208V 240V 208V 240V 208V 240V 208V 240V 208V 240V
AHP18B**H21 4HK*6500206 0.5 Lo 1.9 2.5 6.4 8.5 1.9 2.5 1.9 2.5 1.9 2.5 4HK*6500506 0.5 Med 3.6 4.8 12.3 16.4 3.6 4.8 3.6 4.8 3.6 4.8
4HK*6500806 0.5 Med 5.6 7.5 19.2 25.6 2.8 3.75 5.6 7.5 5.6 7.5
AHP24B**H21
4HK*6500206 0.5 Lo 1.9 2.5 6.4 8.5 1.9 2.5 1.9 2.5 1.9 2.5
4HK*6500506 0.5 Lo 3.6 4.8 12.3 16.4 3.6 4.8 3.6 4.8 3.6 4.8
4HK*6500806 0.5 Med 5.6 7.5 19.2 25.6 2.8 3.75 5.6 7.5 5.6 7.5
4HK*6501006 0.5 Hi 7.2 9.6 24.6 32.8 3.6 4.8 7.2 9.6 7.2 9.6
4HK16501306 0.5 Hi 9.8 13.0 33.3 44.4 3.3 4.3 6.5 8.6 9.8 13.0
AHP30B**H21
4HK*6500506 0.5 Lo 3.6 4.8 12.3 16.4 3.6 4.8 3.6 4.8 3.6 4.8
4HK*6500806 0.5 Med 5.6 7.5 19.2 25.6 2.8 3.75 5.6 7.5 5.6 7.5
4HK*6501006 0.5 Hi 7.2 9.6 24.6 32.8 3.6 4.8 7.2 9.6 7.2 9.6
4HK16501306 0.5 Hi 9.8 13.0 33.3 44.4 3.3 4.3 6.5 8.6 9.8 13.0
4HK165N1506 0.42Hi 10.8 14.4 36.9 49.1 3.6 4.8 7.2 9.6 10.8 14.4
AHP36C**H21
4HK*6500506 0.5 Lo 3.6 4.8 12.3 16.4 3.6 4.8 3.6 4.8 3.6 4.8
4HK*6500806 0.5 Med 5.6 7.5 19.2 25.6 2.8 3.75 5.6 7.5 5.6 7.5
4HK*6501006 0.5 Med 7.2 9.6 24.6 32.8 3.6 4.8 7.2 9.6 7.2 9.6
4HK16501506 0.5 Med 10.8 14.4 36.9 49.1 3.6 4.8 7.2 9.6 10.8 14.4
4HK16501806 0.5 Hi 13.2 17.6 45.1 60.1 3.3 4.4 6.6 8.8 13.2 17.6
AHP42C**H21
4HK*6500506 0.5 Lo 3.6 4.8 12.3 16.4 3.6 4.8 3.6 4.8 3.6 4.8
4HK*6500806 0.5 Med 5.6 7.5 19.2 25.6 2.8 3.75 2.8 7.5 5.6 7.5
4HK*6501006 0.5 Med 7.2 9.6 24.6 32.8 3.6 4.8 7.2 9.6 7.2 9.6
4HK16501506 0.5 Med 10.8 14.4 36.9 49.1 3.6 4.8 7.2 9.6 10.8 14.4
4HK16501806 0.5 Hi 13.2 17.6 45.1 60.1 3.3 4.4 6.6 8.8 13.2 17.6
4HK16502006 0.5 Hi 14.4 19.2 49.2 65.5 3.6 4.8 7.2 9.6 14.4 19.2
AHP48D**H21
4HK*6500506 0.5 Lo 3.6 4.8 12.3 16.4 3.6 4.8 3.6 4.8 3.6 4.8
4HK*6500806 0.5 Med 5.6 7.5 19.2 25.6 2.8 3.75 2.8 7.5 5.6 7.5
4HK*6501006 0.5 Med 7.2 9.6 24.6 32.8 3.6 4.8 7.2 9.6 7.2 9.6
4HK16501506 0.5 Med 10.8 14.4 36.9 49.1 3.6 4.8 7.2 9.6 10.8 14.4
4HK16501806 0.5 Hi 13.2 17.6 45.1 60.1 3.3 4.4 6.6 8.8 13.2 17.6
4HK16502006 0.5 Hi 14.4 19.2 49.2 65.5 3.6 4.8 7.2 9.6 14.4 19.2
AHP60D**H21
4HK*6500506 0.5 MedLow/#4 3.6 4.8 12.3 16.4 3.6 4.8 3.6 4.8 3.6 4.8
4HK*6500806 0.5 MedLow/#4 5.6 7.5 19.2 25.6 2.8 3.75 2.8 7.5 5.6 7.5
4HK*6501006 0.5 Med/#3 7.2 9.6 24.6 32.8 3.6 4.8 7.2 9.6 7.2 9.6
4HK16501506 0.5 MedHigh/#2 10.8 14.4 36.9 49.1 3.6 4.8 7.2 9.6 10.8 14.4
4HK16501806 0.5 MedHigh/#2 13.2 17.6 45.1 60.1 3.3 4.4 6.6 8.8 13.2 17.6
4HK16502006 0.5 MedHigh/#2 14.4 19.2 49.2 65.5 3.6 4.8 7.2 9.6 14.4 19.2
4HK16502506 0.5 MedHigh/#2 18.0 24.0 61.5 81.9 3.6 4.8 10.8 14.4 18.0 24
1. See conversion table below.
2. AHP30B w/4HK165N1506 only approved for use up to .4” static.
kW & MBH CONVERSIONS - FOR TOTAL POWER INPUT REQUIREMENT
FOR 208V OPERATION MULTIPLY 240V TABULATED kW & MBH BY .751
230V 240V .918

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* May be 0 (no breaker) or 1 (with breaker).
ELECTRICAL DATA (FOR SINGLE SOURCE POWER SUPPLY) - COPPER WIRE 208/230-1-60
Models Heater
Models*
Heater
Amps
240V
Field Wiring
Min. Circuit Ampacity Max. O.C.P.1 Amps/Type 75°C Wire Size - AWG
208V 240V 208V 240V 208V 240V
AHP18B**H21 4HK*6500206 10.4 13.5 15.4 15 20 12 12 4HK*6500506 20.0 23.8 27.4 25 30 10 10
4HK*6500806 31.3 36.0 41.5 40 45 8 8
AHP24B**H21
4HK*6500206 10.4 13.0 14.9 15 15 12 12
4HK*6500506 20.0 23.4 26.9 25 30 10 10
4HK*6500806 31.3 35.6 41.0 40 45 8 8
4HK*6501006 40.0 45.1 51.9 45 60 8 6
4HK16501306 54.2 60.4 69.6 70 70 4 4
AHP30B**H21
4HK*6500506 20.0 24.2 27.8 25 30 10 10
4HK*6500806 31.3 36.4 41.9 40 45 8 8
4HK*6501006 40.0 45.8 52.8 50 60 8 6
4HK16501306 54.2 60.1 70.5 70 90 4 3
4HK165N1506 60.0 67.5 77.8 70 90 4 3
AHP36C**H21
4HK*6500506 20.0 25.8 29.5 30 30 10 10
4HK*6500806 31.3 38.0 43.6 40 45 8 8
4HK*6501006 40.0 47.5 54.5 50 60 8 6
4HK16501506 60.0 69.1 79.5 70 90 4 3
4HK16501806 73.3 83.6 96.1 90 100 3 3
AHP42C**H21
4HK*6500506 20.0 25.9 29.8 30 30 8 8
4HK*6500806 31.3 38.1 43.9 40 45 8 8
4HK*6501006 40.0 47.6 54.8 50 60 6 6
4HK16501506 60.0 69.3 79.8 70 90 4 3
4HK16501806 73.3 83.7 96.4 90 100 3 3
4HK16502006 80.0 90.9 104.8 100 110 3 2
AHP48D**H21
4HK*6500506 20.0 25.9 29.8 30 30 10 10
4HK*6500806 31.3 38.1 43.9 40 45 8 8
4HK*6501006 40.0 47.6 54.8 50 60 8 6
4HK16501506 60.0 69.3 79.8 70 90 4 3
4HK16501806 73.3 83.7 96.4 90 100 3 3
4HK16502006 80.0 90.9 104.8 100 110 3 2
AHP60D**H21
4HK*6500506 20.0 31.2 34.5 35 35 8 8
4HK*6500806 31.3 43.4 48.6 45 50 8 8
4HK*6501006 40.0 52.8 59.5 60 60 6 6
4HK16501506 60.0 74.5 84.5 90 90 3 3
4HK16501806 73.3 88.9 101.1 90 110 3 2
4HK16502006 80.0 96.2 109.5 100 125 3 1
4HK16502506 100.0 117.8 134.5 125 150 1 1/0
1. O.C.P. = Over Current Protection device, must be HACR type Circuit Breaker or Time Delay fuse.

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ELECTRICAL DATA (FOR MULTI SOURCE POWER SUPPLY) - COPPER WIRE 208/230-1-60
Models Heater
Models
Min. Circuit Ampacity Max. O.C.P.1 Amps/Type 75°C Wire Size - AWG
Circuit Circuit Circuit
1st 2nd 3rd 1st 2nd 3rd 1st 2nd 3rd
208/240 208/240 208/240 208/240 208/240 208/240 208/240 208/240 208/240
AHP24B**H21 4HK16501306 40.9/47.0 19.5/22.5 – 45/50 20/25 – 8/8 10/10 –
AHP30B**H21 4HK16501306 41.6/47.9 19.5/22.5 – 45/50 20/25 – 8/8 10/10 –
4HK165N1506 45.8/52.8 21.7/25.0 – 50/60 25/25 – 8/6 10/10 –
AHP36C**H21 4HK16501506 47.5/54.5 21.7/25.0 – 50/60 25/25 – 8/6 10/10 –
4HK16501806 43.9/50.3 39.8/45.8 – 45/60 40/50 – 8/6 8/8 –
AHP42C**H21 4HK16501506 47.6/54.8 21.7/25.0 – 50/60 25/25 – 8/6 10/10 – 4HK16501806 44.0/50.6 39.8/45.8 – 45/60 40/50 – 8/6 8/8 –
4HK16502006 47.6/54.8 43.4/50.0 – 50/60 40/50 – 8/6 8/8 –
AHP48D**H21 4HK16501506 47.6/54.8 21.7/25.0 – 50/60 25/25 – 8/6 10/10 – 4HK16501806 44.0/50.6 39.8/45.8 – 45/60 40/50 – 8/6 8/8 –
4HK16502006 47.6/54.8 43.4/50.0 – 50/60 40/50 – 8/6 8/8 –
AHP60D**H21
4HK16501506 52.9/59.5 21.7/25.0 – 60/60 25/25 – 6/6 10/10 –
4HK16501806 49.3/55.3 39.8/45.8 – 50/60 45/60 – 6/6 8/6 –
4HK16502006 52.9/59.5 43.4/50.0 – 60/60 45/50 – 6/6 8/8 –
4HK16502506 52.9/59.5 43.4/50.0 21.68/25.00 60/60 45/50 25/25 6/6 8/8 10/10
1. O.C.P. = Over Current Protection device, must be HACR type Circuit Breaker or Time Delay fuse.
ELECTRICAL DATA - 208/230-3-60
Models Heat Kit -
Three Phase Max. Static Min. Speed Tap
Total Heat1KW Staging
KW MBH W1 Only W2 Only W1 + W2
208V 240V 208V 240V 208V 240V 208V 240V 208V 240V
AHP24B**H21 4HK06501025 0.5 Hi 7.2 9.6 24.6 32.8 7.2 9.6 7.2 9.6 7.2 9.6
AHP30B**H21 4HK06501025 0.5 Hi 7.2 9.6 24.6 32.8 7.2 9.6 7.2 9.6 7.2 9.6
4HK065N1525 0.5 Hi 10.8 14.4 36.9 49.1 10.8 14.4 10.8 14.4 10.8 14.4
AHP36C**H21 4HK06501025 0.5 Med 7.2 9.6 24.6 32.8 7.2 9.6 7.2 9.6 7.2 9.6
4HK06501525 0.5 Med 10.8 14.4 36.9 49.1 10.8 14.4 10.8 14.4 10.8 14.4
AHP42C**H21 4HK06501025 0.5 Med 7.2 9.6 24.6 32.8 7.2 9.6 7.2 9.6 7.2 9.6 4HK06501525 0.5 Med 10.8 14.4 36.9 49.1 10.8 14.4 10.8 14.4 10.8 14.4
4HK06501825 0.5 Hi 12.9 17.2 44.7 58.7 12.9 17.2 12.9 17.2 12.9 17.2
AHP48D**H21 4HK06501025 0.5 Med 7.2 9.6 24.6 32.8 7.2 9.6 7.2 9.6 7.2 9.6 4HK06501525 0.5 Med 10.8 14.4 36.9 49.1 10.8 14.4 10.8 14.4 10.8 14.4
4HK06501825 0.5 Hi 12.9 17.2 44.7 58.7 12.9 17.2 12.9 17.2 12.9 17.2
AHP60D**H21
4HK06501025 0.5 Med/#3 7.2 9.6 24.6 32.8 7.2 9.6 7.2 9.6 7.2 9.6
4HK06501525 0.5 MedHigh/#2 10.8 14.4 36.9 49.1 10.8 14.4 10.8 14.4 10.8 14.4
4HK06501825 0.5 MedHigh/#2 12.9 17.2 44.7 58.7 12.9 17.2 12.9 17.2 12.9 17.2
4HK16502525 0.5 MedHigh/#2 18.0 24.0 61.4 81.4 9.0 12.0 18.0 24.0 18.0 24.0
1. See conversion table on Page 7.

255029-YTG-M-0610
10 Johnson Controls Unitary Products
2. Heaters are 3 Phase.
COOLING MODELS WITH ELECTRIC HEAT WIRING
* Optional dehumidification humidistat switch contacts open on humidity rise.
Notes:
1. “Y” Terminal on Air Handler Control Board must be connected for full CFM and applications requiring 60 second blower off delay for SEER
enhancement.
2. Move HUM STAT Jumper on AH Control Board to YES position if Humidistat is used.
3. MODE Jumper on AH control board should be set to A/C for air conditioners.
ELECTRICAL DATA (FOR SINGLE SOURCE POWER SUPPLY) - COPPER WIRE 208/230-3-60
Models Heat Kit -
Three Phase
Heater
Amps
240V
Field Wiring
Min. Circuit Ampacity Max. O.C.P.1 Amps/Type 75°C Wire Size - AWG
208V 240V 208V 240V 208V 240V
AHP24B**H21 4HK06501025 23.1 27.1 31.3 30 35 10 8
AHP30B**H21 4HK06501025 23.1 26.8 30.8 30 35 10 8
4HK065N1525 34.7 40.0 46.1 40 50 8 8
AHP36C**H21 4HK06501025 23.1 27.5 31.6 30 35 10 8
4HK06501525 34.7 40.0 46.1 40 50 8 8
AHP42C**H21 4HK06501025 23.1 29.1 33.4 30 35 10 8 4HK06501525 34.7 41.6 47.9 50 50 8 8
4HK06501825 41.4 48.9 56.3 50 60 8 6
AHP48D**H21 4HK06501025 23.1 29.3 33.6 30 35 10 8 4HK06501525 34.7 41.8 48.1 50 50 8 8
4HK06501825 41.4 49.0 56.5 50 60 8 6
AHP60D**H21 4HK06501025 23.1 34.5 38.4 35 40 8 8
4HK06501525 34.7 47.0 52.9 50 60 8 6
1. O.C.P. = Over Current Protection device, must be HACR type Circuit Breaker or Time Delay fuse.
ELECTRICAL DATA (FOR MULTI SOURCE POWER SUPPLY) - COPPER WIRE 208/230-3-60
Models Heater
Model
Minimum Circuit Ampacity Max. O.C.P.1 Amps/Type 75°C Wire Size - AWG
Circuit
1st 2nd 3rd 1st 2nd 3rd 1st 2nd 3rd
208/240 208/240 208/240 208/240 208/240 208/240 208/240 208/240 208/240
AHP60D**H21 4HK16501825 31.9/35.4 22.4/25.9 –/– 35/40 25/30 –/– 8/8 10/10 –/–
4HK16502525 40.8/45.6 31.3/36.1 –/– 45/50 35/40 –/– 8/8 8/8 –/–
1. O.C.P. = Over Current Protection device, must be HACR type Circuit Breaker or Time Delay fuse.
COOLING MODELS WITH ELECTRIC HEAT WIRING
MA SERIES - Air Handler Control Wiring
Typical A/C - Cooling only Applications
THERMOSTAT AIR HANDLER
BOARD 1-STAGE
AIR CONDITIONING
RR
G
Y
W1
W2
C
G
W1
W2
Y
C
Y/Y2
Y1
O
HUM
X/L
COM
HUMIDISTAT *
THERMOSTAT AIR HANDLER
BOARD 1-STAGE
AIR CONDITIONING
RR
G
Y
W1
W2
C
G
W1
W2
Y
C
Y/Y2
Y1
O
HUM
X/L
COM
HUMIDISTAT *
MA SERIES - Air Handler Control Wiring
Typical A/C with Electric Heat Applications

255029-YTG-M-0610
Johnson Controls Unitary Products 11
* Optional dehumidification humidistat switch contacts open on rise.
Notes:
1. “Y” Terminal on Air Handler Control Board must be connected for full CFM and applications requiring 60 second blower off delay for SEER
enhancement.
2. Move HUM STAT Jumper on AH Control Board to YES/NO position.
3. MODE Jumper on AH control board should be set to HP for heat pumps.
4. To change quantity of heat during HP defrost cycle - Reverse connections at W1 & W2 on Air Handler Control Board.
TYPICAL APPLICATIONS
SINGLE-STAGE COOLING WIRING
THERMOSTAT
AIR HANDLER
BOARD HEAT PUMP
RRR
GG
Y
W/W1
O
W
O
O
C
X/L X/L
C
Y/Y2
Y1
Y
W1 66
W2
W1
HUM
COM
HUMIDISTAT *
W2
E
X/L
And Newer UPG Single Stage HP Systems
Single Stage H/P with Standard Demand Defrost Control Board
CONTROL WIRING - AHP or MA Series Air Handler
UPFLOW DOWNFLOW
HORIZONTAL RIGHT
HORIZONTAL LEFT

Subject to change without notice. Published in U.S.A. 255029-YTG-M-0610
Copyright © 2010 by Johnson Controls, Inc. All rights reserved. Supersedes: 255029-YTG-L-0708
Johnson Controls Unitary Products
5005 York Drive
Norman, OK 73069