York AHR18B3XH21, AHR24B3XH21, AHR36B3XH21, AHR30B3XH21, AHR42C3XH21 Technical Manual
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TECHNICAL GUIDE
SINGLE PIECE AIR HANDLERS
FOR USE WITH SPLIT -SYSTEM
COOLING & HEAT PUMPS
MODELS: AHR18 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 replacement or closing for new home construction.
ISO 9001
Certified Quality
Management System
680206-YTG-C-0612
DESCRIPTION
This fan coil line offers the ultimate in application flexibility. The
AHR (non-variable speed motor) models are shipped as upflow
models, that can be installed in upflow, horizontal right or left
without the need for additional field installed kits.
All JCI Unitary Products air handlers and coils use a TXV to provide our customers with the optimum performance and refrigerant control. Air handlers are shipped with “Flex-coils” without a
factory installed metering device. For added flexibility, an R-22
or R-410A TXV or orifice 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 bolton 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 insulated with 3/4” foil faced insulation to prevent sweating.
Factory Sealed - Achieves 2% or less total airflow leakage rate
at duct blaster field 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.
Filters - All models have internal filter racks provided for use
with 1” thick standard size filters.
Electric Heat Kits - New 6HK series of field installed electric
heat kits are available for installation friendly and easy service
applications. These 6HK kits are unique to these new models.
FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE
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
Dimensions
Dimensions Wiring Knockouts Refrigerant
Models
AHR18B3XH21
AHR24B3XH21 (
AHR30B3XH21 (
AHR36B3XH21 (
AHR42C3XH21 (
AHR48D3XH21 (
AHR60D3XH21 (
1. Actual size (Conduit size).
ABC
DEF
Height Width Depth Power Control Liquid Vapor
46” 17 1/2”
16 1/2” 13-29/32" 16 1/2”
46” 17 1/2” 16 1/2” 13-29/32" 16 1/2”
46” 17 1/2” 16 1/2” 13-29/32" 16 1/2”
46” 17 1/2” 16 1/2” 13-29/32" 16 1/2”
21 1/2”
52” 21” 21 1/2” 17-13/32" 20”
57” 24 1/2” 26” 20-29/32" 23-1/2”
57” 24 1/2” 26” 20-29/32" 23-1/2”
JK
7/8" (1/2")
1-3/8"(1")
1
7/8" (1/2") 3/8"
1-23/32" (1-1/4")
680206-YTG-C-0612
Connections
Line Size
3/4"
7/8"
COIL TECHNICAL DATA
Models Application
AHR18B3XH21 ( Cooling /Heat Pump Sweat 3.40 2 14 (2) 14 x 17.5 1 x 0.866 3/8 Enhanced
AHR24B3XH21 ( Cooling /Heat Pump Sweat 3.90 3 12 (2) 16 x 17.5 1 x 0.866 3/8 Enhanced
AHR30B3XH21 ( Cooling /Heat Pump Sweat 3.90 3 12 (2) 16 x 17.5 1 x 0.866 3/8 Enhanced
AHR36B3XH21 ( Cooling /Heat Pump Sweat 4.86 3 12 (2) 20 x 17.5 1 x 0.866 3/8 Enhanced
AHR42C3XH21 ( Cooling /Heat Pump Sweat 5.35 3 12 (2) 22 x 17.5 1 x 0.866 3/8 Enhanced
AHR48D3XH21 ( Cooling /Heat Pump Sweat 5.83 3 11 (2) 24 x 17.5 1 x 0.866 3/8 Enhanced
AHR60D3XH21 ( Cooling /Heat Pump Sweat 6.80 3 12 (2) 28 x 17.5 1 x 0.866 3/8 Enhanced
2 Johnson Controls Unitary Products
Refrig.
Conn. Types
Face Area
(Sq. Ft.)
Rows
Deep
Fin
Per In.
Coil Size
Geometry
Tube
Tube
Dia.
Fin
Type
680206-YTG-C-0612
COOLING CAPACITY
Models Rated CFM
AHR18B3XH21 665
AHR24B3XH21 740
AHR30B3XH21 1115
1060
AHR36B3XH21
1245
1230
AHR42C3XH21
1485
1320
AHR48D3XH21
1610
1350
AHR60D3XH21
Note: Airflow is calculated for each system tonnage. Capacity varies with O.D. product.
1620
1870
Entering Air °F
(Dry/Wet Bulb)
FULL-CASED “A” TYPE MULTI-POSITION
85/72 40.7 35.6 30.5 24.1
80/67 35.0 29.5 23.9 18.6
75/62 27.9 22.7 18.1 12.4
70/57 22.1 19.8 16.9 14.1
85/72 47.9 42.4 36.8 29.9
80/67 40.9 35.2 29.0 22.6
75/62 33.6 28.0 21.7 15.5
70/57 26.2 23.0 19.9 16.9
85/72 65.8 60.4 50.7 41.5
80/67 58.0 49.5 39.9 31.2
75/62 47.1 38.9 30.4 21.1
70/57 37.1 33.1 28.2 23.9
85/72 71.1 62.4 51.5 44.3
80/67 59.2 51.0 42.0 32.7
75/62 48.0 39.6 30.8 21.8
70/57 37.3 32.8 28.3 24.0
85/72 83.2 66.7 60.1 48.9
80/67 66.0 59.5 47.8 37.1
75/62 55.0 45.2 35.5 24.8
70/57 42.9 38.1 32.6 27.6
85/72 68.2 72.9 62.8 51.6
80/67 66.3 59.7 48.6 38.4
75/62 56.4 45.4 36.1 25.5
70/57 43.7 38.3 33.3 28.3
85/72 69.8 86.0 74.0 59.1
80/67 68.5 69.5 56.6 44.2
75/62 65.3 54.1 42.0 29.8
70/57 51.0 45.4 39.1 32.8
85/72 87.5 75.9 64.4 51.7
80/67 71.2 59.9 49.8 37.2
75/62 56.5 46.6 35.4 23.3
70/57 43.5 39.5 34.0 28.4
85/72 102.3 90.1 76.1 60.5
80/67 83.7 71.5 57.3 43.6
75/62 67.0 54.0 41.2 27.0
70/57 50.9 46.6 39.8 33.4
85/72 93.7 82.0 70.0 57.4
80/67 76.5 65.5 54.1 41.4
75/62 60.9 50.3 38.4 26.2
70/57 46.6 41.6 35.5 29.8
85/72 70.8 96.4 82.4 66.2
80/67 89.9 76.0 62.8 47.3
75/62 71.4 58.3 44.8 29.9
70/57 55.0 48.4 41.9 34.9
85/72 126.4 110.6 92.8 74.5
80/67 102.1 86.3 70.0 53.1
75/62 81.5 65.6 50.0 34.1
70/57 62.1 55.3 47.1 39.4
MBH@ Evap. Temp. and Corresponding R-410A Pressure °F/PSIG
35/107.9 40/118.9 45/130.7 50/143.3
Johnson Controls Unitary Products 3
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