York YJ-30, YJ-40, YJ-50 Technical Manual

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SPLIT-SYSTEM AIR-COOLED CONDENSING UNITS

YJ-30, -40 & -50 30 THRU 50 NOMINAL TONS

TECHNICAL GUIDE

628792-BTG-G-0418

Description

These units are completely assembled, piped and wired at the factory to provide one-piece shipment and rigging. Each unit i s pressurized with a holding charge of Refrigerant R-410A for storage and/or shipping.

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 sin gle 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 electrical 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 ru st protection and to enhance the appearance of the unit.

Compressors are mounted on rubber isolators to reduce the transmission 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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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 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

-30

C00 A

Product Style

A = Style A

1 = Disconnect

B = Option 1

Options

AA = None TA = Technicoat Condenser Coil

Product Nomenclature

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Condensing Unit Features and Benefits

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• Meets or exceeds ASHRAE 90.1 standards.

• Scroll compressors provide both high efficiency and reliability.

• 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 controls are self-contained, there are no capillary lines to be damaged.

• Solid state or internal line break compressor motor protection.

• 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.

• A lockout circuit to prevent the unit from cycling on s afety 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 compressor 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 rigging.

• 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 complete 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 appearance.

• Removable panels for easy access to all internal components 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 protection.

• 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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Physical Data

YJ-30 thru -50 Physical Data

Component

Nominal Tonnage 30 40 50

Refrigerant type R-410A R-410A R-410A Holding charge (lb)

Operating Charge (lb)

Length 128.5 128.5 128.5 Width 88.5 88.5 88.5 Height 37.5 57.7 57.7

Shipping 1875 2315 2345 Operating 1895 2347 2381

Type Tandem Scroll Tandem Scroll Tandem Scroll Quantity 2 2 2

Cooling

Nominal Capacity (Tons)

Capacity Stages

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

Face area (Sq. Ft.) System #1 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 --- --- ---

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 Motor HP (ea.) 1 1/2 1 1/2 1 1/2

Rotation RPM 1140 1140 1140

Nominal CFM

REFRIGERANT

DIMENSIONS (inches)

WEIGHTS (lb)

COMPRESSORS

SYSTEM DATA

OUTDOOR COIL DATA

CONDENSER FAN DATA

Holding Charge is the amount in the unit as shipped from the factory.

Includes matched evaporator unit with 25 ft of piping.

When viewing the shaft end of the motor.

System #1 35.0 47.0 51.0 System #2 35.0 47.0 51.0

System #1 15 20 25 System #2 15 20 25 System #1 2 2 2 System #2 2 2 2

System #2 32.5 45.5 52.0

System #1 2 2 2 System #2 2 2 2

System #1 15400 19400 19900 System #2 15400 19400 19900

YJ-30 YJ-40 YJ-50

1.0 1.0 1.0

CW CW CW

Models

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Unit Limitations

Condenser Unit limitations

Model

YJ-30 30

YJ-40 40

YJ-50 50

1 2

Nominal

Tonnage

Unit Voltage

208/230-3-60 187 252

575-3-60 540 630

208/230-3-60 187 252

575-3-60 540 630

208/230-3-60 187 252

575-3-60 540 630

Rated in accordance with AHRI Standard 110, Range “A” Utilization Voltage. Low Ambient accessories are available to permit stable system operation at ambient temperatures down to 0°F.

Applied Voltage

Min

Max Max Min

Outdoor DB Temp Cooling (°F) Indoor DB Temp Cooling (°F)

125 40 86 68460-3-60 432 504

†

Max Min

Cooling Ratings

Condensing Unit Only

Outdoor

Unit

YJ-30 333 29.9 11.1 YJ-40 469 37.4 12.5 YJ-50 576 50.0 11.5

Gross Capacity

(MBH)

Condensing unit only ratings are at 45 F SST and 95 F entering-air temperature.

kW EER

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

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Capacity Performance

Condenser Only Cooling Capacities

YJ-30 thru -50 Condenser Only Capacities

Suction Press. &

MODEL

YJ-30

YJ-40

YJ-50

Corresponding

Temp. @ Saturation

PSIG °F MBH KW EER MBH KW EER MBH KW EER MBH KW EER MBH KW EER MBH KW EER

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 9.9 105 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 10.4 105 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

65 75 85 95 105 115

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Temperature of Air on Condenser Coil, °F

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Sound Performance

Outdoor Sound Power Levels (dB), 60 Hz

Nominal

Model

YJ-30 30

YJ-40 40

YJ-50 50

Tonnage

dB(A)

92 90 93 91 89 87 83 79 74

92 90 93 91 89 87 84 80 75

93 91 94 92 90 87 84 80 75

Rated in accordance with AHRI 270 Standard.

Electrical Data

YJ-30 thru -50 Electrical Data

Model

YJ-30

YJ-40

YJ-50

Power

Supply

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

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

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

Qty

Compressors Outdoor Fan Motor

63 125 250 500 1000 2000 4000 8000

RLA

(each)

MCC

(each)

LRA

(each)

Octave Bands (Hz)

Power

Supply

HP Qty

FLA

(each)

Minimum

Circuit

Ampacity

Maximum Fuse Size

(A)

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Typical Wiring Diagrams

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Typical 208/230 Volt, YJ-30/-40/-50 Condensing Unit Wiring Diagram

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Typical Wiring Diagrams

Typical 460/575 Volt, YJ-30/-40/-50 Condensing Unit Wiring Diagram

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Typical Field Wiring Diagrams

C S1 S2 G1 G2 S3 S4

W1 W2 Y1 G Y2 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 G Y3 Y4

W1 W2 Y1 G Y2 0CC CX R SD-24

C S1 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

628792-BTG-G-0418

Typical Field Wiring Diagram NJ-30/-40 Evaporato r Units, NJ-50 Air Handler and MACZ-50A Evaporator Coil when

NOTE: Typical field wiring when OD unit is matched with NJ air handler. When matching condensing uni t with models other

Matched with YJ-30, -40, -50 Condenser

than NJ an additional control transformer is required on the Indoor unit.

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NOTE: For applications on airhandlers/evaporator DX coils

other than NJ-30 thru -50 certified matchups liquid

Typical NJ-30/-40 & MACZ-50A Liquid Line Solenoid Wiring

line solenoids may be required for proper operation and refrigerant system dump out.

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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.

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Typical Liquid Line Solenoid Wiring

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Weight And Dimensions

Corner Weights & Center Of Gravity (Inches)

Unit Model

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

Unit Weight (Lbs.)

Shipping Operation Length Width

Unit Dimensions

(Inches)

A B C D Dim X Dim Y

Weight

A to B

Weight

D to C

Corner Weights & Center Of Gravity

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FRONT

REAR

RIGHT

LEFT

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

Piping And Electrical Connections

Piping connections are made from the rear of the unit. Connections can be made directly to the suctio n 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, l eft of the electrical control box access.

See piping sizes and electrical knockout details.

Unit Clearances

Location Dimensions

Overhead (Top)

Front access panels 36”

Left Side 30”

Right Side 30”

Rear 24”

Bottom

Units must be installed outdoors. Overhanging structures or shrubs should not obstruct condenser air discharge.

Adequate snow clearance must be provided if winter operation is expected.

120”

0”

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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

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/4 60-575V

Power Wiring 2-1/2” 1-1/2”

30 Ton Piping Connections

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Control Wiring

Power Wiring

57.689

33.049

29.799

19.358

20.858

22.358

88.140

40 & 50 Ton Power and Control Wiring Connections

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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

40 & 50 Ton Piping Connections

30 Ton Power And Control Wiring Connec t io ns

York International Corporation

5005 York Drive

Norman, OK 73069