York AHV18B Quick start guide

TECHNICAL GUIDE
SINGLE PIECE ECM
AIR HANDLERS
FOR USE WITH SPLIT-SYSTEM
AIR CONDITIONERS & HEAT PUMPS
MODELS: AHV18 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
WARRANTY
Standard 5-year limited parts warranty.
Extended 10-year limited parts warranty when product is
registered online within 90 days of purchase for replace-
ment or closing for new home construction.
ISO 9001
Certified Quality
Management System
FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE
824755-YTG-C-0912
DESCRIPTION
The AHV Air Handler line offers the ultimate in comfort, sound
and application flexibility. The air handler is shipped ready to be
installed in upflow, horizontal left or right position, with minor
adjustments. No special kits are required to install this deluxe
product.
Air handlers are shipped with “Flex-coils” without a factory
installed metering device. Flex coil models allow these coils to
be used with R-22 or R-410A for added flexibility to meet refrig-
erant choices. An orifice metering device or a R-410A TXV
should be installed in the field to meet your system require-
ments.
FEATURES
Thermostatic Expansion Valve - Provides the ultimate refrig-
erant control required for today’s high efficient product. The
UPG bolt-on TXV provides easy installation to convert the air
handler to the required refrigerant, which is a true bolt-on
design that does not require brazing to replace or install.
Rust-proof Plastic Drain Pans - The vertical and horizontal
drain pans in these units are made of a fiberglass reinforced
thermoset polymer that will not rust or compromise stability at
high temperatures.
Insulated Cabinet - All air handler cabinets are thermally insu-
lated with 3/4” foil faced insulation to prevent sweating.
Factory Sealed - Achieves 2% or less total airflow leakage rate
at duct leakage test conditions for system airflow verification.
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 G60 galvanized or prepainted
G30 galvanized steel.
Filters - All models have internal filter racks provided for use
with 1” thick standard size filters.
Electric Heat Kits - The 6HK series of field installed electric
heat kits are available for installation friendly and easy service
applications. These 6HK kits have heat capacities from 2 kW to
25 kW to meet the application requirements.
ECM Variable Speed Motor - Designed for efficient, quiet oper-
ation with added indoor comfort control. With the use of a
humidistat, the system will monitor the humidity in the home
and automatically keep the desired humidity level in both winter
and summer seasons. The ECM motor utilizes only 24% of the
energy used by standard blower motors to reduce your overall
heating and cooling costs.
The climate comfort system allows dealer to customize comfort
settings based on regional location.
Communications - These models may be connected as part of
a communications system using a 4-wire connection bus.

2Johnson Controls Unitary Products
824755-YTG-C-0912
DIMENSIONS & DUCT CONNECTION DIMENSIONS
J
D
Blower
Compartment
Circuit Breaker
Panel
Drain Pan Connections
for Horizontal Applications
Refrigerant
Connections Drain Connections
for Upflow
Applications
7-11/32”
B
A
K
C
1-1/2”
Top Outlet
Dimensions
Filter
Access
18-9/32” E
Bottom Inlet
Dimensions
13”
F
Dimensions1
Models
Dimensions Wiring Knockouts2Refrigerant
Connections
Line Size
ABC DEF JK
Height Width Depth Power Control Liquid Vapor
AHV18B/AHV24B/AHV30B 46 17 1/2 21 1/2 16 1/2 13-29/32 16 1/2 7/8 (1/2)
1-3/8(1)
1-23/32 (1-1/4) 7/8 (1/2) 3/8 3/4
AHV36C 52 21 21 1/2 17-13/32 20
AHV42D/AHV48D/AHV60D 57 24 1/2 26 20-29/32 23-1/2 7/8
1. All dimensions are in inches.
2. Actual size (conduit size).
COIL TECHNICAL DATA
Models Application Refrig.
Conn. Types Face Area (Sq. Ft.) Rows Deep Fins Per In. Coil Size Tube Geometry Tube Dia. Fin Type
AHV18B3XH21 Cooling /Heat
Pump Sweat 3.4 2 14 (2) 14 x 17.5 1 x 0.866 3/8 Enhanced
AHV24B3XH21 Cooling /Heat
Pump Sweat 3.9 3 12 (2) 16 x 17.5 1 x 0.866 3/8 Enhanced
AHV30B3XH21 Cooling /Heat
Pump Sweat 3.9 3 12 (2) 16 x 17.5 1 x 0.866 3/8 Enhanced
AHV36C3XH21 Cooling /Heat
Pump Sweat 4.9 3 12 (2) 20 x 17.5 1 x 0.866 3/8 Enhanced
AHV42D3XH21 Cooling /Heat
Pump Sweat 5.4 3 12 (2) 22 x 17.5 1 x 0.866 3/8 Enhanced
AHV48D3XH21 Cooling /Heat
Pump Sweat 5.8 3 11 (2) 24 x 17.5 1 x 0.866 3/8 Enhanced
AHV60D3XH21 Cooling /Heat
Pump Sweat 6.8 3 12 (2) 28 x 17.5 1 x 0.866 3/8 Enhanced

Johnson Controls Unitary Products 3
824755-YTG-C-0912
COOLING CAPACITY1
Models Rated CFM2Entering Air
Dry/Wet Bulb (°F) MBH@ Evap. Temp. and Corresponding R-410A Pressure (°F/PSIG)
35/107.9 40/118.9 45/130.7 50/143.3
AHV18B
610
85/72 37.9 33.7 28.3 23.3
80/67 31.8 27 22.5 17.6
75/62 26.4 21.5 16.7 11.6
70/57 20.7 18.4 15.8 13.5
850
85/72 49.7 43.2 36.9 28.4
80/67 42.1 35.1 28.8 22.5
75/62 33.7 28 21.4 14.7
70/57 26.5 23.8 20.3 16.9
AHV24B
585
85/72 38.7 34.4 30.1 24.7
80/67 33.6 28.9 23.9 18.9
75/62 27.2 22.7 17.8 12.8
70/57 21.2 18.6 16.2 13.7
795
85/72 50.8 45.2 38.4 32.0
80/67 43.7 36.8 31 24.0
75/62 35.7 29.5 23.1 16.1
70/57 27.9 24.5 21 17.6
985
85/72 64.9 54 45.6 37.8
80/67 52.3 44.6 36.9 28.4
75/62 42.2 35.2 26.8 19.3
70/57 33.6 29.6 25.4 21.4
AHV30B
585
85/72 38.7 34.4 30.1 24.7
80/67 33.6 28.9 23.9 18.9
75/62 27.2 22.7 17.8 12.8
70/57 21.2 18.6 16.2 13.7
795
85/72 50.8 45.2 38.4 32.0
80/67 43.7 36.8 31 24.0
75/62 35.7 29.5 23.1 16.1
70/57 27.9 24.5 21 17.6
985
85/72 64.9 54 45.6 37.8
80/67 52.3 44.6 36.9 28.4
75/62 42.2 35.2 26.8 19.3
70/57 33.6 29.6 25.4 21.4
AHV36C
730
85/72 49.3 45.2 38.3 31.4
80/67 43 37.3 31 24.0
75/62 34.7 28.8 22.8 16.2
70/57 26.8 23.4 20.4 16.9
855
85/72 59.1 51 44.1 36.5
80/67 49.3 42.4 35.4 27.6
75/62 39.9 33.1 26.1 18.2
70/57 31.1 26.9 23.5 19.7
1000
85/72 65.2 59.5 51.2 41.3
80/67 56.4 48.3 39.9 31.3
75/62 45.8 38.1 29.7 20.8
70/57 35.7 31.2 26.9 22.6
1190
85/72 67.5 65.9 59.8 48.7
80/67 64.9 56.7 46.2 35.7
75/62 53.5 43.2 34.1 24.0
70/57 41.4 36.6 31.5 26.2
For notes see Page 4.

4Johnson Controls Unitary Products
824755-YTG-C-0912
AHV42D
820
85/72 56.6 51.1 42.8 35.6
80/67 48.6 41.1 34.8 27.6
75/62 39.4 33 26 18.3
70/57 30.5 26.6 23.1 19.6
1000
85/72 65.7 61 52.7 42.9
80/67 58 49.6 41.1 32.1
75/62 46.7 38.9 30.4 21.8
70/57 36.4 31.6 27.6 23.3
1180
85/72 67.9 71.4 60.2 48.8
80/67 65.6 56.9 47.1 37.1
75/62 53.8 45.2 34.7 24.6
70/57 42.2 37.1 31.9 27.0
1385
85/72 69.4 81 68 57.2
80/67 77.1 65.4 54.1 41.6
75/62 62.1 51 39.8 28.1
70/57 48.1 42.5 36.8 30.6
AHV48D
1000
85/72 69 59.8 51.3 41.5
80/67 56.5 48.2 39.7 29.9
75/62 45.1 36.8 28.3 18.9
70/57 34.4 31 26.8 22.5
1195
85/72 79.5 69.7 59.9 48.6
80/67 65.2 55.5 45.5 34.9
75/62 52.2 42.5 32.6 21.8
70/57 40.1 36.1 31.1 26.2
1385
85/72 90 78.1 66 54.5
80/67 73.5 62.7 51.3 38.7
75/62 59.2 48.2 36.9 24.0
70/57 45.2 41 35.4 29.7
1600
85/72 102.2 90 74.3 60.4
80/67 83.6 70.6 57.2 43.1
75/62 66.1 54 41.2 27.0
70/57 50.7 46.1 39.8 33.4
AHV60D
1190
85/72 83.6 73.7 62.9 51.6
80/67 68.2 58.4 48.4 37.1
75/62 54.9 45.3 34.8 23.9
70/57 42.2 37.3 31.9 26.9
1390
85/72 95.9 84.1 71.9 58.8
80/67 79.2 67.4 54.4 41.6
75/62 62.4 51.2 39.7 26.9
70/57 48 42.5 36.8 30.6
1565
85/72 106.3 94.2 78.5 63.5
80/67 87.6 73.9 60.2 45.9
75/62 69.3 56.8 43.5 29.7
70/57 53.1 46.9 40.5 34.1
1835
85/72 122.1 107.1 90.9 72.6
80/67 100.2 85.9 69.8 51.8
75/62 79.7 65.3 49.8 32.9
70/57 60.8 54.1 46.4 38.7
1. Actual capacity varies with the outdoor AC or HP that is used with the system.
2. Airflow is calculated for each system tonnage.
COOLING CAPACITY1(Continued)
Models Rated CFM2Entering Air
Dry/Wet Bulb (°F) MBH@ Evap. Temp. and Corresponding R-410A Pressure (°F/PSIG)
35/107.9 40/118.9 45/130.7 50/143.3
APPLICATION FACTORS - RATED CFM VS. ACTUAL CFM
% Of Rated Airflow (CFM) 80% 90% 100% 110% 120%
Capacity Factor 0.96 0.98 1.00 1.02 1.03

Johnson Controls Unitary Products 5
824755-YTG-C-0912
PHYSICAL & ELECTRICAL DATA - COOLING ONLY
MODELS
Models 18B 24B 30B 36C 42D 48D 60D
Blower - Diameter x Width 10 x 8 10 x 8 10 x 8 11 x 10 11 x 10 11 x 10 11 x 10
Motor HP 1/3 HP 1/3 HP 1/3 HP 1/2 HP 1/2 HP 3/4 HP 3/4 HP
Nominal RPM 1050 1050 1050 1050 1050 1050 1050
Voltage 208/230 208/230 208/230 208/230 208/230 208/230 208/230
Full Load Amps @230V 2.3 2.3 2.3 3.2 3.2 4.9 4.9
Filter 1Type DISPOSABLE OR PERMANENT
Size 16 x 20 x 1 16 x 20 x 1 16 x 20 x 1 20 x 20 x 1 22 x 20 x 1 22 x 20 x 1 22 x 20 x 1
Permanent Type Kit 1PF0601BK 1PF0601BK 1PF0601BK 1PF0602BK 1PF0603BK 1PF0603BK 1PF0603BK
Shipping /
Operating Weight (lbs.) 116/104 121/106 121/106 153/138 169/151 172/154 175/157
1. Field supplied.
KW & MBH CONVERSIONS - FOR TOTAL POWER INPUT REQUIREMENT
For a power distribution voltage that is different than the provided nominal voltage, multiply the kW and MBH data from the table by
the conversion factor in the following table.
DISTRIBUTION POWER NOMINAL VOLTAGE CONVERSION FACTOR
208V 240V 0.75
220V 240V 0.84
230V 240V 0.92
ELECTRICAL DATA - COOLING ONLY
Models Motor FLA1Minimum Circuit Ampacity MOP2Minimum Wire
Size (AWG)3
208V 230V 208V 230V
18B
24B
30B 2.7 2.3 3.4 2.9 15 14
36C
42D 3.6 3.2 4.5 4.0 15 14
48D
60D 5.3 4.9 6.6 6.1 15 14
1. FLA = Full Load Amps.
2. MOP = Maximum Overcurrent Protection device; must be HACR type circuit breaker or time delay fuse.
3. 75C, copper wire only. If wire other than non-plated, 75C ambient, copper wire is used, consult applicable tables of the NEC and local codes..
ELECTRICAL HEAT: MINIMUM FAN SPEED1
Heater Kit Models2,3 Nom. kW
@240V Air Handler Models
AHV18B AHV24B AHV30B AHV36C AHV42D AHV48D AHV60D
6HK(0,1)6500206 2.4kW Low (D) Low (D) Low (D) Low (D) Low (D) Low (D) Low (D)
6HK(0,1)6500506 4.8kW Low (D) Low (D) Low (D) Low (D) Low (D) Low (D) Low (D)
6HK(0,1)6500806 7.7kW Med-Low (C) Low (D) Low (D) Low (D) Low (D) Low (D) Low (D)
6HK(0,1)6501006
6HK06501025 9.6kW Med-Low (C) Low (D) Low (D) Low (D) Low (D) Low (D) Low (D)
6HK(1,2)6501306 12.5kW - Med-Low (C) Med-Low (C) Low (D) Low (D) Low (D) Low (D)
6HK(1,2)6501506
6HK06501525 14.4kW - Med-Low (C) Med-Low (C) Med-Low (C) Low (D) Low (D) Low (D)
6HK(1,2)6501806
6HK06501825 17.3kW - - - Med-Low (C) Med-Low (C) Low (D) Low (D)
6HK(1,2)6502006
6HK16502025 19.2kW - - - Med-High (B) Med-High (B) Low (D) Low (D)
6HK(1,2)6502506
6HK16502525 24kW------Low(D)
1. The referenced letter in this table is for the heat jumper tap.
2. (0,1) - 0 = no circuit breaker OR 1 = with circuit breaker.
3. (1,2) - 1 = with circuit breaker, no breaker jumper bar OR 2 = with circuit breaker & breaker jumper bar.

6Johnson Controls Unitary Products
824755-YTG-C-0912
ELECTRIC HEAT PERFORMANCE DATA: 208/230-1-60 & 208/230-3-60
Heater
Models1,2 Nominal kW
@240V
Total Heat3kW Staging
kW MBH W1 Only W1 + W2
208V 230V 208V 230V 208V 230V 208V 230V
1PH
6HK(0,1)6500206 2.4 1.8 2.2 6.2 7.5 1.8 2.2 1.8 2.2
6HK(0,1)6500506 4.8 3.6 4.4 12.3 15.0 3.6 4.4 3.6 4.4
6HK(0,1)6500806 7.7 5.8 7.1 19.7 24.1 5.8 7.1 5.8 7.1
6HK(0,1)6501006 9.6 7.2 8.8 24.6 30.1 7.2 8.8 7.2 8.8
6HK(1,2)6501306 12.5 9.4 11.5 32.0 39.2 3.1 3.8 9.4 11.5
6HK(1,2)6501506 14.4 10.8 13.2 36.9 45.1 3.6 4.4 10.8 13.2
6HK(1,2)6501806 17.3 13.0 15.9 44.3 54.2 6.5 7.9 13.0 15.9
6HK(1,2)6502006 19.2 14.4 17.6 49.2 60.2 7.2 8.8 14.4 17.6
6HK(1,2)6502506 24.0 18.0 22.0 61.5 75.2 7.2 8.8 18.0 22.0
3PH
6HK06501025 9.6 7.2 8.8 24.6 30.1 7.2 8.8 7.2 8.8
6HK06501525 14.4 10.8 13.2 36.9 45.1 10.8 13.2 10.8 13.2
6HK06501825 17.3 13.0 15.9 44.3 54.2 13.0 15.9 13.0 15.9
6HK16502025 19.2 14.4 17.6 49.2 60.2 7.2 8.8 14.4 17.6
6HK16502525 24.0 18.0 22.0 61.5 75.2 9.0 11.0 18.0 22.0
1. (0,1) - 0 = no circuit breaker OR 1 = with circuit breaker.
2. (1,2) - 1 = with circuit breaker, no breaker jumper bar OR 2 = with circuit breaker & breaker jumper bar.
3. For different power distributions, see conversion table on Page 5.

Johnson Controls Unitary Products 7
824755-YTG-C-0912
ELECTRICAL DATA FOR SINGLE SOURCE POWER SUPPLY - 208/230-1-60
Air Handler Models Heater
Models1,2
Heater
Amps
@240V
Field Wiring
Min. Circuit Ampacity MOP.3Min Wire Size (AWG)4
208V 230V 208V 230V 208V 230V
AHV18B
6HK(0,1)6500206 10.0 14.2 15.4 15 20 12 12
6HK(0,1)6500506 20.0 25.0 27.9 30 30 10 10
6HK(0,1)6500806 32.0 38.0 42.9 40 45 8 8
6HK(0,1)6501006 40.0 46.7 52.9 50 60 8 6
AHV24B
AHV30B
6HK(0,1)6500206 10.0 14.2 15.4 15 20 12 12
6HK(0,1)6500506 20.0 25.0 27.9 30 30 10 10
6HK(0,1)6500806 32.0 38.0 42.9 40 45 8 8
6HK(0,1)6501006 40.0 46.7 52.9 50 60 8 6
6HK(1,2)6501306 52.0 59.7 67.9 60 70 6 4
6HK(1,2)6501506 60.0 68.4 77.9 70 80 4 4
AHV36C
AHV42D
6HK(0,1)6500206 10.0 15.3 16.5 20 20 12 12
6HK(0,1)6500506 20.0 26.2 29.0 30 30 10 10
6HK(0,1)6500806 32.0 39.2 44.0 40 45 8 8
6HK(0,1)6501006 40.0 47.8 54.0 50 60 8 6
6HK(1,2)6501306 52.0 60.8 69.0 70 70 6 4
6HK(1,2)6501506 60.0 69.5 79.0 70 80 4 4
6HK(1,2)6501806 72.0 82.5 94.0 90 100 3 3
6HK(1,2)6502006 80.0 91.2 104.0 100 110 3 3
AHV48D
6HK(0,1)6500206 10.0 17.5 18.6 20 20 12 12
6HK(0,1)6500506 20.0 28.3 31.1 30 35 10 8
6HK(0,1)6500806 32.0 41.3 46.1 45 50 8 8
6HK(0,1)6501006 40.0 50.0 56.1 50 60 8 6
6HK(1,2)6501306 52.0 63.0 71.1 70 80 6 4
6HK(1,2)6501506 60.0 71.6 81.1 80 90 4 4
6HK(1,2)6501806 72.0 84.6 96.1 90 100 4 3
6HK(1,2)6502006 80.0 93.3 106.1 100 110 3 2
AHV60D
6HK(0,1)6500206 10.0 17.5 18.6 20 20 12 12
6HK(0,1)6500506 20.0 28.3 31.1 30 35 10 8
6HK(0,1)6500806 32.0 41.3 46.1 45 50 8 8
6HK(0,1)6501006 40.0 50.0 56.1 50 60 8 6
6HK(1,2)6501306 52.0 63.0 71.1 70 80 6 4
6HK(1,2)6501506 60.0 71.6 81.1 80 90 4 4
6HK(1,2)6501806 72.0 84.6 96.1 90 100 4 3
6HK(1,2)6502006 80.0 93.3 106.1 100 110 3 2
6HK(1,2)6502506 100.0 115.0 131.1 125 150 2 1/0
1. (0,1) - 0 = no circuit breaker OR 1 = with circuit breaker.
2. (1,2) - 1 = with circuit breaker, no breaker jumper bar OR 2 = with circuit breaker & breaker jumper bar.
3. MOP = Maximum Overcurrent Protection device; must be HACR type circuit breaker or time delay fuse.
4. Stated sizes are for 75°C, copper wire only. If wire other than non-plated, 75°Cambient, copper wire is used, consult applicable tables of the
NEC and local codes.

8Johnson Controls Unitary Products
824755-YTG-C-0912
ELECTRICAL DATA FOR MULTI-SOURCE POWER SUPPLY: 208/230-1-60
Air
Handlers
Models
Heater
Models
Total
Heater
Amps
@240
V
Min. Circuit Ampacity MOP1Min. Wire Size (AWG)2
208V 230V 208V 230V 208V 230V
Circuit Circuit Circuit
1st32nd 3rd 1st32nd 3rd 1st32nd 3rd 1st32nd 3rd 1st32nd 3rd 1st32nd 3rd
AHV24B
AHV30B 6HK16501306 52.0 22.2 37.6 – 24.6 43.3 – 25 40 – 25 45 – 10 8 – 10 8 –
6HK16501506 60.0 25.1 43.3 – 27.9 50.0 – 30 45 – 30 50 – 10 8 – 10 8 –
AHV36C
AHV42D
6HK16501306 52.0 23.3 37.6 – 25.7 43.3 – 25 40 – 30 45 – 10 8 – 10 8 –
6HK16501506 60.0 26.2 43.3 – 29.0 50.0 – 30 45 – 30 50 – 10 8 – 10 8 –
6HK16501806 72.0 43.5 39.0 – 49.0 45.0 – 45 40 – 50 45 –88–88–
6HK16502006 80.0 47.8 43.3 – 54.0 50.0 – 50 45 – 60 50 –88–68–
AHV48D
6HK16501306 52.0 25.4 37.6 – 27.8 43.3 – 30 40 – 30 45 – 10 8 – 10 8 –
6HK16501506 60.0 28.3 43.3 – 31.1 50.0 – 30 45 – 35 50 – 10 8–88–
6HK16501806 72.0 45.6 39.0 – 51.1 45.0 – 50 40 – 60 45 –88–68–
6HK16502006 80.0 49.9 43.3 – 56.1 50.0 – 50 45 – 60 50 –88–68–
AHV60D
6HK16501306 52.0 25.4 37.6 – 27.8 43.3 – 30 40 – 30 45 – 10 8 – 10 8 –
6HK16501506 60.0 28.3 43.3 – 31.1 50.0 – 30 45 – 35 50 – 10 8–88–
6HK16501806 72.0 45.6 39.0 – 51.1 45.0 – 50 40 – 60 45 –88–68–
6HK16502006 80.0 49.9 43.3 – 56.1 50.0 – 50 45 – 60 50 –88–68–
6HK16502506 100.0 49.9 43.3 21.7 56.1 50.0 25.0 50 45 25 60 50 25 8 8 10 6 8 10
1. MOP = Maximum Overcurrent Protection device; must be HACR type circuit breaker or time delay fuse.
2. Stated sizes are for 75°C, copper wire only. If wire other than non-plated, 75°C ambient, copper wire is used, consult applicable tables of the NEC and local codes.
3. 1st Circuit includes the blower motor amps.
ELECTRICAL DATA FOR SINGLE SOURCE POWER SUPPLY - 208/230-3-60
Air Handler Models Heater
Models
Heater
Amps
@ 240V
Field Wiring
Min. Circuit Ampacity MOP1Min. Wire Size (AWG)2
208V 230V 208V 230V 208V 230V
AHV24B
AHV30B 6HK06501025 23.1 28.4 31.8 30 35 10 8
6HK06501525 34.6 40.9 46.1 45 50 8 8
AHV36C
AHV42D
6HK06501025 23.1 29.5 32.9 30 35 10 8
6HK06501525 34.6 42.0 47.3 45 50 8 8
6HK06501825 41.6 49.6 56.0 50 60 8 6
6HK16502025346.2 54.6 61.8 60 70 6 6
AHV48D
6HK06501025 23.1 31.7 35.0 35 35 8 8
6HK06501525 34.6 44.1 49.4 45 50 8 8
6HK06501825 41.6 51.7 58.1 60 60 6 6
6HK16502025346.2 56.7 63.9 60 70 6 6
AHV60D
6HK06501025 23.1 31.7 35.0 35 35 8 8
6HK06501525 34.6 44.1 49.4 45 50 8 8
6HK06501825 41.6 51.7 58.1 60 60 6 6
6HK16502025346.2 56.7 63.9 60 70 6 6
6HK16502525357.7 69.1 78.3 70 80 4 4
1. MOP = Maximum Overcurrent Protection device; must be HACR type circuit breaker or time delay fuse.
2. Stated sizes are for 75°C, copper wire only. If wire other than non-plated, 75°C ambient, copper wire is used, consult applicable tables of the NEC and local codes..
3. The 20kW and 25kW heater models (6HK16502025 and 6HK16502525) come with circuit breakers standard. Single source power MCA and MOP requirements are
given here only for reference if used with field installed single point power modification.

Johnson Controls Unitary Products 9
824755-YTG-C-0912
TYPICAL APPLICATIONS
ACCESSORIES
Refer to Price Manual for specific model numbers where not
shown.
TXV Kits - TXV kits are available for “Flex-coil” applications and
converting R-22 to R-410A or as a service replacement. All kits
are bolt-on and require no brazing to install.
Electric Heaters - 6HK models shown under electrical data
include sequential operation and temperature dual limit
switches for safe, efficient operation. Circuit breakers are pro-
vided where shown.
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.
ELECTRICAL DATA FOR MULTI-SOURCE POWER SUPPLY: 208/230-3-60
Air Handler Models Heater
Models
Total Heater
Amps
@ 240V
Min. Circuit Ampacity MOP1Min. Wire Size (AWG)2
208V 230V 208V 230V 208V 230V
Circuit Circuit Circuit
1st32nd 1st32nd 1st32nd 1st32nd 1st32nd 1st32nd
AHV36C
AHV42D 6HK16502025 46.2 29.5 25.0 32.9 28.9 30 25 35 30 10 10 8 10
AHV48D 6HK16502025 46.2 31.7 25.0 35.0 28.9 35 25 35 30 8 10 8 10
AHV60D 6HK16502025 46.2 31.7 25.0 35.0 28.9 35 25 35 30 8 10 8 10
6HK16502525 57.7 37.9 31.3 42.2 36.1 40 35 45 40 8888
1. MOP = Maximum Overcurrent Protection device; must be HACR type circuit breaker or time delay fuse.
2. Stated sizes are for 75°C, copper wire only. If wire other than non-plated, 75°C ambient, copper wire is used, consult applicable tables of the NEC and local codes.
3. 1st Circuit includes the fan motor.
UPFLOW
HORIZONTAL RIGHT
HORIZONTAL LEFT
HEAT
HEAT
HEAT
Air Handler Voltage 1Normal Operating Voltage
Range
1. Rated in accordance with ARI Standard 110, utilization range “A”.
208/230-1-60 187-253

10 Johnson Controls Unitary Products
824755-YTG-C-0912
TYPICAL THERMOSTAT CONNECTION
Cooling Models with and without Electric Heat Wiring
* Optional dehumidification humidistat switch contacts open on humidity rise.
NOTES:
1. “Y/Y2” Thermostat wire must be connected for full CFM and applications requiring 60 second blower off delay for SEER enhancement.
2. Remove humidistat jumper on air handler control board.
3. For heat pump applications - set AC/HP jumper on air handler control board to the HP position.
TYPICAL THERMOSTAT WIRING FOR 2-STAGE
HEAT PUMP WITH ECM BLOWER MOTOR
* Optional dehumidification humidistat switch contacts open on humidity rise.
NOTES:
1. “Y/Y2” Thermostat wire must be connected for full CFM and applications
requiring 60 second blower off delay for SEER enhancement.
2. Remove humidistat jumper on air handler control board.
3. For heat pump applications - set AC/HP jumper on air handler control board
to the HP position.
AIR HANDLER WITH COMMUNICATING
AC OR HP
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
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
COM
HUMIDISTAT
Air Handler Control Wiring
Typical A/C with Electric Heat Applications
CONTROL WIRING - Air Handler & UPG HP Systems Two Stage
H/P with York Guard VI Board & Copeland “Ultra Tech”
Conventional Application - Not Hot Heat Pump
THERMOSTAT
AIR HANDLER
BOARD
2 - STAGE SCROLL
HEAT PUMP
RR R
GG
Y2
E
WW
OO
O
X / L X / L
CC
Y/Y2
Y1 Y1
Y2 OUT
Y2
W2 OUT
W1 OUT
BS
W2
W1
HUM
COM
HUMIDISTAT *
Y1
FIGURE 1: Air Handler with Communicating AC or HP
A+
R
C
B-
A+
R
C
B-
A+
R
C
B-
R
G
Y/Y2
Y1
W2
W1
O
HUM
COM
Touch Screen
Communicating
Control
Air Handler
Communicating
Control
Air Conditioner/Heat Pump
Communicating Control