York YJ-30 Quick start guide

SPLIT-SYSTEM
AIR-COOLED CONDENSING UNITS
YJ-30, -40 & -50
30 THRU 50 NOMINAL TONS
628792-BTG-G-0418
TECHNICAL
GUIDE
TECHNICAL
GUIDE
Description
These units are completely assembled, piped and wired at the factory
to provide one-piece shipment and rigging. Each unit is pressurized
with a holding charge of Refrigerant R-410A for storage and/or ship-
ping.
The compact design, clean styling, low silhouette, and quiet operation
make these condensing units suitable for almost any outdoor location.
On rooftops . . . because they weigh much less than a single package
unit of similar capacity and are much easier to rig and support. At
ground level . . . because their ample sub-cooling capacity allows them
to be located three or more stories below the evaporator coil.
Every condenser coil is pressurized with air to 325 psig and leak
tested. After assembly, the unit is pressurized with a combination of
Refrigerant R-410A and nitrogen to 450 psig for pressure testing and
additional leak testing. During this pressure test, the operation of the
high pressure control is checked. As the unit is being evacuated and
dehydrated, the operation of the low pressure control is checked.
Every compressor, condenser fan motor, crankcase heater, and elec-
trical control circuit is checked to assure a trouble-free start-up and
years of reliable operation.
The condenser fan guards are vinyl-coated to provide additional rust
protection and to enhance the appearance of the unit.
Compressors are mounted on rubber isolators to reduce the transmis-
sion of vibration. Vertical discharge condenser fans direct sound
upward and away from any surrounding structures.
All sheet metal parts are constructed of commercial grade galvanized
steel. After fabrication, each part is thoroughly cleaned to remove any
grease or dirt from its surfaces. The external parts are coated with a
powder paint to assure a quality finish for many years. This UL
approved coating system has passed the 750-hour, 20% salt spray
test per ASTM Standard B117.
All models include a 1-year limited warranty on the complete unit. An
additional 4-year extended compressor warranty is available as an
option on all models.
A matching line of Evaporator Blower units is also offered to meet your
precise capacity and air handling requirements.

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2Ducted Systems
Table of Contents
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
TABLE OF CONTENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
CONDENSING UNIT ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
GUIDE SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
PHYSICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
UNIT LIMITATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
COOLING RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
CAPACITY PERFORMANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
SOUND PERFORMANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
ELECTRICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
TYPICAL WIRING DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
WEIGHT AND DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

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Product Nomenclature
Product Category
Y = Split System, Condenser, AC, R-410A
Product Identifier
J = Standard Efficiency, 4-Pipe, R-410A
Nominal Cooling Capacity - MBH
-30 = 30 Ton
-40 = 40 Ton
-50 = 50 Ton
C00 = Cooling Only
Product Options
Installation Options
A = None
T = 208/230-3-60
W = 460-3-60
X = 575-3-60
Configured Split Condenser Model Number Nomenclature
A = Standard Motor
Airflow
Product Generation
2 = Second Generation
Voltage
Heat Type & Nominal Heat Capacity
YJ-30 C00 A TAAA 2A
Product Style
A = Style A
1 = Disconnect
B = Option 1
Options
AA = None
TA = Technicoat Condenser Coil

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Condensing Unit Features and Benefits
• Meets or exceeds ASHRAE 90.1 standards.
• Scroll compressors provide both high efficiency and reli-
ability.
•Simplicity®SE Controls
• Dual refrigerant circuits.
• Condenser coils are constructed of copper tubes and
aluminum fins for durability and long lasting efficient
operation.
• Crankcase heaters that will be de-energized when the
compressor is operating.
• Both high and low pressure controls. Since these con-
trols are self-contained, there are no capillary lines to be
damaged.
• Solid state or internal line break compressor motor pro-
tection.
• Class 2, 24-volt thermostat control circuit.
• Factory installed service valves are standard.
• Two filter-driers are shipped in the unit's control box for
field installation in the liquid line near the condensing
unit.
• Copper stub-outs are factory mounted on the suction
and liquid line service valves to simplify the field piping
connections.
• Multiple controls to provide stable system operation at
ambient temperatures down to 40ºF with kits available
for operation to 0ºF.
• Capacity staging for more economical operation and
more even temperature levels within the conditioned
space.
• Alockout circuit to prevent the unit from cycling on safety
control.
• Pump-out on unit startup to prevent liquid refrigerant
returning to the compressor is standard on all models.
• Inherently protected condenser fan motors.
• V-Coil Design with exterior service port connections.
• Five-minute anti-short cycle timer and minimum com-
pressor run time.
• Factory installed disconnect and Technicoat coils option.
• Self contained high and low pressure controls.
Condensing Unit Accessories
• Low ambient VFD control to 0° F.
• Phase Monitors - Designed to prevent unit damage. The
phase monitor will shut the unit down and out-of phase
condition.
• Hot Gas Bypass Kit - That will provide a metered flow of
compressor discharge gas to the system’s evaporator
coil during reduced load operation.
• Optional skid for fork truck handling (requires 96” length
forks).

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Guide Specifications
SPLIT SYSTEM COOLING ONLY CONDENSING
UNITS
MODELS YJ-30, -40 AND -50
THE INSTALLER SHALL:
• Furnish Ducted Systemsair-cooled condensing units or
equivalent in accordance with the performance schedule
shown on the plans, and
• Install each unit as shown on the plans in accordance
with:
• The manufacturers recommendations and
• All applicable national and local codes
EACH UNIT SHALL BE:
• CSA approved.
• Completely assembled for one-piece shipping and rig-
ging.
• Leak pressure and functionally tested at the factory to
assure a trouble-free start-up after installation.
• Covered by a 1-year limited parts warranty on the com-
plete unit.
• In current production with published literature available
to check performance, limitations, specifications, power
requirements, dimensions, operation and appearance.
EACH UNIT SHALL HAVE:
• A steel angle frame to provide the rigid support required
for shipping, rigging and years of dependable operation.
• Zinc-coated steel that has been finished by a powder
paint process to provide a long lasting, quality appear-
ance.
• Removable panels for easy access to all internal compo-
nents during maintenance and service.
THE DIMENSIONS OF EACH UNIT SHALL:
• Not exceed those specified on the plans.
EACH COMPRESSOR SHALL:
• Be mounted on isolators to minimize the transmission of
vibration.
ALL CONDENSER COILS SHALL:
• Be draw through design.
• Be constructed of copper tubes arranged in staggered
rows and mechanically expanded into aluminum fins.
THE CONDENSER FAN MOTOR(S) SHALL:
• Be directly connected to the condenser fans.
• Have permanently lubricated ball bearings.
• Have inherent overload protection.
• Motors shall be three phase.
• The propeller-type condenser fans shall be arranged for
vertical discharge of the condenser air.
THE WIRING FOR EACH UNIT SHALL INCLUDE:
• A crankcase heater (one per compressor)
• All 24-volt temperature control circuit.
• Both high and low pressure cutouts.
• Solid-state or internal line break compressor motor pro-
tection.
• Condenser fan motor control to assure stable operation
at ambient temperatures down to 40ºF.
THE REFRIGERANT PIPING of each system shall include:
• A filter-drier shipped for field installation.

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6Ducted Systems
Physical Data
YJ-30 thru -50 Physical Data
Component Models
YJ-30 YJ-40 YJ-50
Nominal Tonnage 30 40 50
REFRIGERANT
Refrigerant type R-410A R-410A R-410A
Holding charge (lb)1
1Holding Charge is the amount in the unit as shipped from the factory.
1.0 1.0 1.0
Operating Charge (lb)2
2Includes matched evaporator unit with 25 ft of piping.
System #1 35.0 47.0 51.0
System #2 35.0 47.0 51.0
DIMENSIONS (inches)
Length 128.5 128.5 128.5
Width 88.5 88.5 88.5
Height 37.5 57.7 57.7
WEIGHTS (lb)
Shipping 1875 2315 2345
Operating 1895 2347 2381
COMPRESSORS
Type Tandem Scroll Tandem Scroll Tandem Scroll
Quantity 2 2 2
Cooling
Nominal Capacity (Tons) System #1 15 20 25
System #2 15 20 25
Capacity Stages System #1 2 2 2
System #2 2 2 2
SYSTEM DATA
No. Refrigeration Circuits 2 2 2
Suction Line OD (in.) 1 5/8 1 5/8 1 5/8
Liquid Line OD (in.) 7/8 7/8 7/8
OUTDOOR COIL DATA
Face area (Sq. Ft.) System #1 32.5 45.5 52.0
System #2 32.5 45.5 52.0
Rows 222
Fins per inch 16 16 16
Tube diameter (in.) 3/8 3/8 3/8
Circuitry Type Interlaced Interlaced Interlaced
Refrigerant Control --- --- ---
CONDENSER FAN DATA
No. Fans / Diameter (in.) 4/30 4/30 4/30
Type Axial Axial Axial
Drive type Direct Direct Direct
No. speeds 1 1 1
Number of motors System #1 2 2 2
System #2 2 2 2
Motor HP (ea.) 1 1/2 1 1/2 1 1/2
Rotation3
3When viewing the shaft end of the motor.
CW CW CW
RPM 1140 1140 1140
Nominal CFM System #1 15400 19400 19900
System #2 15400 19400 19900

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Ducted Systems 7
Unit Limitations
Cooling Ratings
EER = Energy Efficiency Ratio at full load - the cooling capacity in Btu’s per hour (Btuh) divided by the power input in watts, expressed in Btuh per
watt (Btuh/watt).
EER; condensing unit only ratings based on 45º F SST and 95ºF entering outdoor air temperature.
LEGEND
EER = Energy Efficiency Ratio
SST = Saturated Suction Temperature
Condenser Unit limitations
Model Nominal
Tonnage Unit Voltage Applied Voltage1
1Rated in accordance with AHRI Standard 110, Range “A” Utilization Voltage.
Outdoor DB Temp Cooling (°F) Indoor DB Temp Cooling (°F)
Min2
2Low Ambient accessories are available to permit stable system operation at ambient temperatures down to 0°F.
Cooling Ratings
Max Max Min†Max Min
YJ-30 30 208/230-3-60 187 252 125 40 86 68460-3-60 432 504
575-3-60 540 630
YJ-40 40 208/230-3-60 187 252 125 40 86 68460-3-60 432 504
575-3-60 540 630
YJ-50 50 208/230-3-60 187 252 125 40 86 68460-3-60 432 504
575-3-60 540 630
Outdoor
Unit
Condensing Unit Only
Gross Capacity1
(MBH)
1Condensing unit only ratings are at 45 F SST and
95 F entering-air temperature.
kW EER
YJ-30 333 29.9 11.1
YJ-40 469 37.4 12.5
YJ-50 576 50.0 11.5

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8Ducted Systems
Capacity Performance
Condenser Only Cooling Capacities
YJ-30 thru -50 Condenser Only Capacities
MODEL
Suction Press. &
Corresponding
Temp. @ Saturation
Temperature of Air on Condenser Coil, °F
65 75 85 95 105 115
PSIG °F MBH KW EER MBH KW EER MBH KW EER MBH KW EER MBH KW EER MBH KW EER
YJ-30
104 35 275.4 28.5 9.6 264.0 27.4 9.6 250.0 26.4 9.5 238.2 28.8 8.3 231.8 32.0 7.2 228.5 35.1 6.5
117 40 327.9 29.2 11.2 316.0 28.1 11.3 302.0 27.0 11.2 285.8 29.4 9.7 273.0 32.5 8.4 263.3 35.6 7.4
129 45 380.4 29.8 12.8 368.0 28.7 12.8 354.0 27.5 12.9 333.5 29.9 11.1 314.2 33.0 9.5 298.1 36.2 8.2
142 50 432.9 30.4 14.3 420.0 29.3 14.3 406.0 28.1 14.4 381.1 30.5 12.5 355.4 33.6 10.6 332.9 36.7 9.1
154 55 485.4 31.0 15.7 472.0 30.0 15.8 458.0 28.7 16.0 428.8 31.0 13.8 396.6 34.1 11.6 367.7 37.2 9.9
YJ-40
105 35 418.0 33.2 12.6 408.0 32.4 12.6 399.2 32.4 12.3 397.3 36.2 11.0 389.6 40.4 9.6 389.2 45.0 8.6
117 40 461.0 34.4 13.4 451.0 33.5 13.5 441.6 33.1 13.3 433.0 36.8 11.8 419.2 40.9 10.3 410.8 45.2 9.1
130 45 504.0 35.6 14.1 494.0 34.6 14.3 484.1 33.8 14.3 468.8 37.4 12.5 448.9 41.3 10.9 432.4 45.4 9.5
142 50 547.0 36.9 14.8 537.0 35.7 15.0 526.5 34.5 15.3 504.5 38.0 13.3 478.5 41.8 11.5 454.0 45.6 9.9
155 55 590.0 38.1 15.5 580.0 36.8 15.8 569.0 35.2 16.2 540.3 38.5 14.0 508.2 42.2 12.0 475.6 45.8 10.4
YJ-50
105 35 489.4 45.3 10.8 487.2 44.1 11.0 482.6 43.4 11.1 442.2 48.4 9.1 391.3 54.4 7.2 334.0 60.7 5.5
118 40 561.4 46.2 12.1 558.7 45.2 12.4 554.6 44.4 12.5 509.2 49.4 10.3 456.8 55.1 8.3 400.0 61.1 6.5
130 45 633.4 47.2 13.4 630.2 46.3 13.6 626.6 45.4 13.8 576.2 50.5 11.4 522.3 55.9 9.3 466.0 61.5 7.6
142 50 705.4 48.2 14.6 701.7 47.4 14.8 698.6 46.4 15.1 643.2 51.3 12.5 587.8 56.6 10.4 532.0 62.0 8.6
154 55 777.4 49.2 15.8 773.2 48.5 15.9 770.6 47.4 16.2 710.2 52.3 13.6 653.3 57.4 11.4 598.0 62.4 9.6

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Ducted Systems 9
Sound Performance
Outdoor Sound Power Levels (dB), 60 Hz
Model Nominal
Tonnage dB(A)1
1Rated in accordance with AHRI 270 Standard.
Electrical Data
Octave Bands (Hz)
63 125 250 500 1000 2000 4000 8000
YJ-30 30 92 90 93 91 89 87 83 79 74
YJ-40 40 92 90 93 91 89 87 84 80 75
YJ-50 50 93 91 94 92 90 87 84 80 75
YJ-30 thru -50 Electrical Data
Model Compressors Outdoor Fan Motor Minimum Circuit
Ampacity
Maximum
Fuse Size
(A)
Power
Supply Qty RLA (each) MCC (each) LRA (each) Power Supply HP Qty FLA (each)
YJ-30
208/230-3-60 4 25.0 39 164 208/230-3-60 1 1/2 4 5.8 129.5 150
460-3-60 4 12.2 19 100 460-3-60 1 1/2 4 2.9 63.5 70
575-3-60 4 9.0 14 78 575-3-60 1 1/2 4 2.2 47.1 50
YJ-40
208/230-3-60 4 30.1 47 225 208/230-3-60 1 1/2 4 5.8 151.1 175
460-3-60 4 16.7 26 114 460-3-60 1 1/2 4 2.9 82.6 90
575-3-60 4 12.2 19 80 575-3-60 1 1/2 4 2.2 60.7 70
YJ-50
208/230-3-60 4 48.1 75 245 208/230-3-60 1 1/2 4 5.8 227.6 250
460-3-60 4 18.6 29 125 460-3-60 1 1/2 4 2.9 90.7 100
575-3-60 4 14.7 23 100 575-3-60 1 1/2 4 2.2 71.3 80

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10 Ducted Systems
Typical Wiring Diagrams
Typical 208/230 Volt, YJ-30/-40/-50 Condensing Unit Wiring Diagram

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Ducted Systems 11
Typical Wiring Diagrams
Typical 460/575 Volt, YJ-30/-40/-50 Condensing Unit Wiring Diagram

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12 Ducted Systems
Typical Field Wiring Diagrams
Typical Field Wiring Diagram NJ-30/-40 Evaporator Units, NJ-50 Air Handler and MACZ-50A Evaporator Coil when
Matched with YJ-30, -40, -50 Condenser
NOTE: Typical field wiring when OD unit is matched with NJ air handler. When matching condensing unit with models other
than NJ an additional control transformer is required on the Indoor unit.
CS1 S2 G1 G2 S3 S4
W1 W2 Y1 GY2 0CC CX R SD-24
SE CONTROL BOARD
THERMOSTAT CONNECTIONS
TB2
CONDENSER CONTROL BOX
EVAPORATOR CONTROL BOX
THERMOSTAT
FOUR STAGE COOL
R C Y1 Y2 GY3 Y4
W1 W2 Y1 GY2 0CC CX R SD-24
CS1 S2 G1 G2 S3 S4 TB1
SYSTEM 1
SYSTEM 2
UCB 2
UCB 1
1 2 3 4
POWER SUPPLY
208/230, 460
OR 575-3-60
LIQUID LINE
SOLENOID VALVES
EVAPORATOR
BLOWER MOTOR
CONTACTOR

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Ducted Systems 13
NOTE: For applications on airhandlers/evaporator DX coils
other than NJ-30 thru -50 certified matchups liquid line solenoids may be required for proper operation and refrigerant system dump out.
Typical NJ-30/-40 & MACZ-50A Liquid Line Solenoid Wiring

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14 Ducted Systems
Typical Liquid Line Solenoid Wiring
Standard Terminal Block on NJ-30/-40 and NJ-50
with MACZ-50A models. On non NJ models
isolation relays must be installed to avoid
overloading on 75 VA transformer on condensing
unit.
Non NJ units may not include any or all of the
components required to wire the unit. Use the
diagram as general reference only.
Primary side of transformer
connect to line side of power
supply.
Primary side of transformer
connect to line side of power
supply.

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Ducted Systems 15
Weight And Dimensions
Corner Weights & Center Of Gravity (Inches)
Unit Model Unit Weight (Lbs.) Unit Dimensions
(Inches) A B C D Dim X Dim Y Weight
A to B Weight D to C
Shipping Operation Length Width
YJ-30 1875 1895 128.5 88.5 404 537 533 401 55.2 44.1 934 941
YJ-40 2315 2347 128.5 88.5 486 675 671 483 53.8 44.1 1154 1161
YJ-50 2345 2381 128.5 88.5 486 693 685 481 53.0 44.0 1166 1179
Corner Weights & Center Of Gravity

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16 Ducted Systems
Piping And Electrical Connections
Piping connections are made from the rear of the unit. Connections can be made directly to the suction and liquid line service
valves.
Piping can be routed to the unit from the left or right side.
Electrical connections for power and control wiring is made from the front of all units, left of the electrical control box access.
See piping sizes and electrical knockout details.
YJ Unit Dimensions
Unit Dimensions (Inches)
Model ABCDEFGH
YJ-30 128.5 88.5 37.5 41.8 40.0 46.1 37.1 23.6
YJ-40 128.5 88.5 57.7 41.8 40.0 46.1 37.1 23.6
YJ-50 128.5 88.5 57.7 41.8 40.0 46.1 37.1 23.6
Unit Clearances
Location Dimensions
Overhead (Top)1
1Units must be installed outdoors. Overhanging structures or
shrubs should not obstruct condenser air discharge.
120”
Front access panels 36”
Left Side 30”
Right Side 30”
Rear 24”
Bottom2
2Adequate snow clearance must be provided if winter operation
is expected.
0”
E
D
A
FRONT
B
REAR
RIGHT
LEFT
C
F
G
H

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Ducted Systems 17
Piping And Electrical Connection Sizes (30/40/50T) (Inches)
Connection Entry Size
Suction Line Sys #1 1-5/8 OD
Liquid Line Sys #1 7/8 OD
Suction Line Sys #2 1-5/8 OD
Liquid Line Sys #2 7/8 OD
Power Wiring Knockout SEE BELOW
Control Wiring 7/8 HOLE
Electrical Power Knockout Sizes (Inches)
Connection Entry 30-40-50T/230V 30-40-50T/460-575V
Power Wiring 2-1/2” 1-1/2”
30 Ton Piping Connections
Liquid (Sys 2)
Suction (Sys 2)
Liquid (Sys 1)
Suction (Sys 1)
37.518
88.140
50.313
46.190
41.859
37.826
10.984 11.385

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18 Ducted Systems
40 & 50 Ton Power and Control Wiring Connections
Control Wiring
Power Wiring
57.689
33.049
29.799
19.358
20.858
22.358
88.140

Subject to change without notice. Printed in U.S.A. 628792-BTG-G-0418
Copyright © 2018 by Johnson Controls, Inc. All rights reserved. Supersedes: 628792-BTG-F-0218
York International Corporation
5005 York Drive
Norman, OK 73069
40 & 50 Ton Piping Connections
30 Ton Power And Control Wiring Connections
d (Sys 2)
n (Sys 2)
n (Sys 1)
d (Sys 1)
37.731
41.934
46.206
50.409
88.140
SEE DETAIL RIGGING HOLES
Control Wiring
Power Wiring
DETAIL RIGGING HOLES
SCALE 0.250
2.750
2.500 5.183
2.313
88.140
22.358
20.858
19.358
37.518
12.878 9.628