York Millennium YDAS 410 Owner's manual

00064VIP
INSTALLATION, OPERATION, & MAINTENANCE
Millennium ®
AIR COOLED SCREW LIQUID CHILLERS
AIR COOLED SCREW HERMETIC
Supersedes: Nothing Form 201.10-NM4 (1298)
YDAJ 4 SYSTEM With EPROM +(Standard, Brine & Metric Models Combined)
031-01714-105 031-01714-105
MASTER SUBORDINATE
®
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YDAS 410 - 490
STYLE D

YORK INTERNATIONAL
2
TABLE OF CONTENTS
GENERAL CHILLER INFORMATION
Fig. 1  YDAS Chiller............................................ 5
UNIT NOMENCLATURE ............................................. 6
NAMEPLATE ENGINEERING DATA .......................... 7
OPERATIONAL LIMITATIONS ................................... 8
Fig. 2A  Cooler Water Pressure Drop,
Total (English) ...................................... 8
Fig. 2B  Cooler Water Press. Drop, Total (Si) .... 9
PHYSICAL DATA (English) ...................................... 10
PHYSICAL DATA (SI) ................................................11
DIMENSIONS ............................................................ 12
Models YDAS 410 - 490 (English) ....................... 12
Models YDAS 410 - 490 (SI) ............................... 14
ELECTRICAL DATA.................................................. 16
YDAS 410-490 CHILLER COMPONENTS ............... 24
Fig. 7  YDAS 410 - 490 Chiller Components ..... 24
Fig. 8  YDAS 410 - 490 Chiller Typical
Cooler Components ............................. 25
Fig. 9  YDAS 410 - 490 Chiller Components ..... 26
Fig. 10  YDAS 410 - 490 Chiller Components ... 27
Fig. 11  YDAS 410 - 490 Chiller Components ... 28
Fig. 12  YDAS 410 - 490 Chiller Components ... 29
YDAS 410-490 COMPRESSOR COMPONENTS ..... 30
Fig. 13  YDAS 410 - 490 Compressor Compnts 30
Fig. 14  YDAS 410 - 490 Compressor Compnts 31
Fig. 15  Compressor Gas Flow Diagram .......... 32
Fig. 16  Screw Chiller Refrigerant Flow Dia...... 33
GENERAL ................................................................. 34
Fig. 17  Compressor Rotors............................. 34
Fig. 18  Power Panel (w/ Wye-Delta Starting) ... 36
INSTALLATION ......................................................... 37
Fig. 19  Rigging The Chiller Module .................. 37
Fig. 20  Compressor Vibration Isolator .............. 38
WGHT. DISTBTN. & ISOLATOR LCTN (English) .... 40
WGHT. DIST. & ISOLATOR LOCATION (SI) ............ 41
YDAS 410 - 490 SYS 1 AND 2 WIRING DIAGRAM
Wye-Delta Start ................................................... 42
Fig. 22  Elementary Diagram ............................. 42
YDAS 410 - 490 SYS 1 & 2 CONNECTION DIAGRAM
Wye-Delta Start ................................................... 44
Fig. 23  Connection Diagram............................. 44
Fig. 24  Wye-Delta Closed Start ........................ 46
Fig. 25  Compressor Terminal Box .................... 47
YDAS 410 - 490 SYS 3 AND 4 WIRING DIAGRAM
Wye-Delta Start ................................................... 48
Fig. 26  Elementary Diagram ............................. 49
YDAS 410 - 490 SYS 3 AND 4 CONNECTION DIA.50
Wye-Delta Start ................................................... 50
Fig. 27  Connection Diagram............................. 50
Fig. 28  Wye-Delta Closed Transition Start ....... 52
YDAS 410 - 490 SYS. 3 & 4 COMPRESSOR TERM. BOX
Fig. 29  YDAS 410 - 490 Sys. 3 & 4 Compressor
Terminal Box (Wye-delta Start) ............ 53
YDAS 410 - 490 SYS. 1 & 2 WIRING DIAGRAM
Fig. 30  Across-the-line Start ............................. 54
YDAS 410 - 490 SYS. 1 & 2 CONNECTION DIAGRAM
Fig. 31  Across-the-line Start ............................. 56
YDAS 410 - 490 SYS. 1 & 2 (SYSTEM WIRING)
Fig. 32  Across-The-Line Start ......................... 58
YDAS 410 - 490 SYS. 1 & 2 COMPRESSOR TERM. BOX
Fig. 33  (Across-the-line Start) .......................... 59
YDAS 410 - 490 SYS. 3 & 4 WIRING DIAGRAM
Fig. 34  Elementary Diagram ............................. 60
YDAS 410 - 490 SYS. 3 & 4 CONNECTION DIAGRAM
Fig. 35  Across-The-Line Start ......................... 62
YDAS 410 - 490 SYS. 3 & 4 SYSTEM WIRING
Fig. 36  Across-the-line Start ............................. 64
YDAS 410 - 490 SYS. 3 & 4 COMPRESSOR TERM. BOX
Fig. 37  Across-the-line Start ............................. 65

FORM 201.10-NM4
3
YORK INTERNATIONAL
TABLE OF CONTENTS
CHILLER CONTROL PANEL
DISPLAY & STATUS INFORMATION KEYS ....... 66
PROGRAM & SETUP KEYS ............................... 66
1. INTRODUCTION AND PHYSICAL DESCRIPTION
1.1 General ............................................................... 67
1.2 Keypad & Display ............................................... 67
1.3 Unit (Chiller) On (Auto) / Off Switch.................... 68
1.4 Microprocessor Board(s) .................................... 68
1.5 Ancillary Circuit Boards ...................................... 68
1.6 Current Transformers (C.t.) ................................ 69
1.7 Ems/Bas Connections ........................................ 69
1.8 Microprocessor Board Layout ............................ 71
Fig. 38  Microprocessor Board Layout .............. 71
1.8 Microcomputer Control Center ........................... 72
Fig. 39  Microcomputer Control Center ............. 72
1.9 Wye-Delta Start Power Panel............................. 73
Fig. 40  Wye-Delta Start Power Panel .............. 73
1.10 Compressor Heater .......................................... 74
1.11 Evaporator Heater ............................................ 74
1.12 Lead Lag Compressor Selection ...................... 74
Fig. 41  TB4 Location Manual Lead Lag ........... 74
2. STATUS KEY AND FAULT MESSAGES
2.1 General ............................................................... 76
2.2 General Status Messages .................................. 76
2.3 Anticipation Control Status Messages ............... 78
2.4 Chiller Fault Status Messages ............................ 79
2.5 System Fault Status Messages .......................... 80
2.6 Printout On Fault Shutdown ............................... 83
3. DISPLAY KEYS AND OPTION SWITCHES
3.1 General ................................................................ 84
3.2 Chilled Liquid Temps Key .................................... 84
3.3 Ambient Temp Key .............................................. 85
3.4 System Press / Temp Keys.................................. 85
3.5 % Motor Current Ke ............................................. 85
3.6 Operating Hrs / Start Counter Key ...................... 86
3.7 Options Key & Dip Switch Settings ..................... 86
Fig. 42  Dip Switch Phys. Location & Setting .... 89
4. PRINT KEYS
4.1 General ............................................................... 90
4.2 Operating Data Key ............................................ 90
4.3 Operating Data - Local Display Messages ......... 90
4.4 Operating Data  Remote Printout ..................... 94
4.5 History Key ......................................................... 95
4.6 Fault History Data (Local Display Messages) .... 95
4.7 Fault History Data  Remote Printout............... 100
5. ENTRY KEYS
5.1 General ............................................................. 103
5.2 Numerical Keypad ............................................ 103
5.3 Enter Key .......................................................... 103
5.4 Cancel Key ....................................................... 103
5.5 AM / PM Key ..................................................... 103
5.6 Advance Day Key ............................................. 103

YORK INTERNATIONAL
4
TABLE OF CONTENTS
6. SETPOINTS KEYS6104
6.1 General ............................................................. 104
6.2 Chilled Liquid Temperature Control .................. 104
6.3 Chilled Liquid Temp/Range Key ....................... 108
6.4 Remote Reset Temp/Range Key ...................... 109
7. CLOCK KEYS
7.1 General ..............................................................110
7.2 Set Time Key .....................................................110
7.3 Set Schedule / Holiday Key ...............................110
7.4 Manual Override Key ......................................... 111
8. PROGRAM KEY
8.1 General ..............................................................112
8.2 Program Key  User Programmable Values .....113
8.3 Programming Default Values .........................119
8.4 Compressor Motor Full Load Amps Data ......... 121
8.5 System Design Condensing Temperature Data 122
YDAS 410 - 490 FAN CONTROL STRATEGY ....... 123
Fig. 43  Fan Location/Operation ...................... 123
SYSTEM STARTUP CHECKLIST ............................. 124
Checking The System 24 Hours Prior ..................... 124
Panel Cheks ............................................................ 125
Initial Start-Up .......................................................... 126
Checking Superheat & Subcooling ......................... 126
Checking Economizer Superheat ............................ 127
Leak Checking ......................................................... 127
TROUBLESHOOTING............................................... 128
TEMPERATURE CONVERSION TABLES ................ 134

FORM 201.10-NM4
5
YORK INTERNATIONAL
The 410-490 Millennium Air Cooled Screw liquid chiller
is completely assembled with all interconnecting refrig-
erant piping and internal wiring, ready for field installa-
tion. The unit is pressure-tested, evacuated, and fully
charged with Refrigerant-22, and includes an initial oil
charge. After assembly, an operational test is performed
with water flowing through the coolers to check that each
refrigeration circuit operates correctly.
GENERAL CHILLER INFORMATION
The unit structure is heavy gauge, galvanized steel,
covered with a baked-on enamel. Base rails are of
formed double thickness, painted plate steel. Units are
designed in accordance with ARI 550, NFPA 70 (Na-
tional Electrical Code), ASHRAE/ANSI 15 Safety code
for mechanical refrigeration, ASME, and U.L. (200, 230,
460 and 575-3-60 models). Units are rated in accor-
dance with ARI Standard 550.
FIG. 1  YDAS CHILLER
00064VIP

YORK INTERNATIONAL
6
UNIT NOMENCLATURE
The model number denotes the following characteristics of the unit:
YD A S 410 X - 46 Y D
YORK Dual Chiller Design Series
Air Cooled
Type Start
Y = WYE-Delta
X = Across-the-Line
Compressor Design Series
S = Screw
Unit Model Voltage Code:
17 = 200-3-60
28 = 230-3-60
Class 46 = 460-3-60
Blank = Standard Efficiency 58 = 575-3-60
X = High Efficiency

FORM 201.10-NM4
7
YORK INTERNATIONAL
4M2A3HL6A
2 Compressor “W” Chiller Refrigerant Code
Configuration containing A = R-22
4 Fans & 8 Coils per Module B = R-134a
1 = 50 Hz, Economized, 1 Module
2 = 60 Hz, Economized, 1 Module
3 = 50 Hz, Economized, 1.5 Module
4 = 60 Hz, Economized, 1.5 Module Condenser Fan Code
5 = 50 Hz, Economized, 2 Module 6, 7, A, or B
6 = 60 Hz, Economized, 2 Module
7 = 50 Hz, Economized, 2.5 Module Condenser Code
8 = 60 Hz, Economized, 2.5 Module L = 32" x 83"
9 = 50 Hz, Economized, 3 Module 3 row deep coils
10 = 60 Hz, Economized, 3 Module in both systems
M =32" x 83"
4 row deep coils
Gear in System #1 XHS 120 Compressor in System #1
(A, M, F, H, P or S) 3 row deep coils
in System #2
N =32" x 83"
4 row deep coils
in both systems
Motor in 60 Hz
System#1 Compressor Max. KW
0 = 101 Frame, 7" Long N/A
1 = 101 Frame, 8" Long 85 Cooler Code
2 = 101 Frame, 9" Long 105 H = 16" Cooler
3 = 101 Frame, 9.5" Long N/A K = 18" Cooler
4 = 101 Frame, 10" Long 126 N = 20" Cooler
5 = 101 Frame, 10.75" Long 150
6 = 124 Frame, 9.5" Long (G) 184
7 = 124 Frame, 9.5" Long (K) 219
8 = 124 Frame, 10.75" Long (P) 263 Motor in System #2 Compressor
9 = 124 Frame, 10.75" Long (M) N/A (See System #1 motor list)
Gear in System #2 XHS 120 Compressor
(A, M, F, H, P or S)
NAMEPLATE ENGINEERING DATA
Engineering Data (stamped on unit nameplate) denotes the following characteristics of the components of the unit:

YORK INTERNATIONAL
8
OPERATIONAL LIMITATIONS
(English)
LD03801
FIG. 2A – COOLER WATER PRESSURE DROP,TOTAL (ENGLISH)
VOLTAGE LIMITATIONS
The following voltage limitations are ab-
solute and operation beyond these limita-
tions may cause serious damage to the
compressor.
TEMPERATURES AND FLOWS
410  490 TONS
MODEL LEAVING WATER COOLER FLOW AIR ON
NUMBER TEMPERATURE (°F) (GPM)3CONDENSER (°F)
YCAS & YDAS MIN.1MAX.2MIN. MAX. MIN. MAX.4
410 40 52 5005160650 130
440 40 52 5005160650 130
470 40 52 5005160650 130
490 40 52 5005160650 130
NOTES:
1. For leaving brine temperature below 40°F, contact your nearest YORK office for application requirements.
2. For leaving water temperature higher than 52°F, contact your nearest YORK office for application guidelines.
3. The evaporator is protected against freeze-up to -20°F with an electrical heater as standard.
4. Operation above 115°F requires the Optional High Ambient Kit.
5. YDAS Units have two coolers in parallel.
VOLTAGES
UNIT POWER MIN. MAX.
200-3-60 180 220
230-3-60 207 253
460-3-60 414 506
575-3-60 517 633
MODEL YDAS COOLER CODE
410, 440, 470, 490 4

FORM 201.10-NM4
9
YORK INTERNATIONAL
LD03802
TEMPERATURES AND FLOWS
1440 - 1722 kW
NOTES:
1. For leaving brine temperature below 4.4°C, contact your nearest YORK office for application requirements.
2. For leaving water temperature higher than 11°C, contact your nearest YORK office for application guidelines.
3. The evaporator is protected against freeze-up to -28.8°F with an electrical heater as standard.
4. Operation above 46.1°C requires the Optional High Ambient Kit.
5. YDAS Units have two coolers in parallel.
FIG. 2B – COOLER WATER PRESSURE DROP, TOTAL (SI)
OPERATIONAL LIMITATIONS
(SI)
VOLTAGE LIMITATIONS
The following voltage limitations are ab-
solute and operation beyond these limita-
tions may cause serious damage to the
compressor.
VOLTAGES
UNIT POWER MIN. MAX.
200-3-60 180 220
230-3-60 207 253
460-3-60 414 506
575-3-60 517 633
MODEL LEAVING WATER COOLER FLOW AIR ON
NUMBER TEMPERATURE (°C) (L/S)3CONDENSER (°C)
YCAS & YDAS MIN.1MAX.2MIN. MAX. MIN. MAX.4
410 4.4 11.1 31.55101.35-17.7 54.4
440 4.4 11.1 31.55101.35-17.7 54.4
470 4.4 11.1 31.55101.35-17.7 54.4
490 4.4 11.1 31.55101.35-17.7 54.4
MODELYDAS COOLER CODE
410, 440, 470, 490 4

YORK INTERNATIONAL
10
PHYSICAL DATA
(English)
MODEL YDAS 410 440 470 490
NOMINAL CAPACITY (TONS) 396.8 431.7 461.9 478.5
NO. OF REFRIG CIRCUITS 4444
COMPRESSOR Sys. 1 120CP*Q 120CP*Q 120CP*Q 120CP*Q
MODEL XHS Sys. 2 120CH*N 120CH*N 120CP*Q 120CS*Q
Sys. 3 120CH*N 120CP*Q 120CP*Q 120CS*Q
Sys. 4 120BF*L 120CH*N 120CP*Q 120CS*Q
DIAMETER x LENGTH (in.) (2) 20 x 96 (2) 20 x 96 (2) 20 x 96 (2) 20 x 96
VOLUME (GAL.) 108 108 108 108
COOLER
FLOW (GPM) MIN 500 500 500 500
MAX 1606 1606 1606 1606
CONDENSER Sys. 1 4444
ROWS Sys. 2 4444
Sys. 3 4444
Sys. 4 4444
CONDENSER FACE AREA (FT.2)590 590 590 590
NO. 16 16 16 16
CONDENSER HP/KW 3/2.8 3/2.8 3/2.8 3/2.8
FANS NO. OF BLADES 6666
AIRFLOW CFM 268,000 268,000 268,000 268,000
SHIPPING Al. FIN 30,664 30,664 30,664 30,664
WEIGHT Cu. FIN 35,196 35,196 35,196 35,196
(LBS.) OPERATING Al. FIN 31,444 31,444 31,444 31,444
Cu. FIN 35,996 35,996 35,996 35,996
REFRIGERANT CHARGE Sys. 1 210 210 210 210
(LBS. R-22) Sys. 2 235 235 235 235
Sys. 3 210 210 210 210
Sys. 4 235 235 235 235

FORM 201.10-NM4
11
YORK INTERNATIONAL
PHYSICAL DATA
(SI)
MODEL YDAS 410 440 470 490
NOMINAL CAPACITY (KW) 1394.6 1517.2 1623.3 1681.7
NO. OF REFRIG CIRCUITS 4444
COMPRESSOR Sys. 1 120CP*Q 120CP*Q 120CP*Q 120CP*Q
MODEL XHS Sys. 2 120CH*N 120CH*N 120CP*Q 120CS*Q
Sys. 3 120CH*N 120CH*N 120CP*Q 120CS*Q
Sys. 4 120BF*L 120CH*N 120CP*Q 120CS*Q
DIAMETER x LENGTH (mm) (2) 508 x 2438 (2) 508 x 2438 (2) 508 x 2438 (2) 508 x 2438
VOLUME (L) 488 488 488 488
COOLER
FLOW (L/s.) MIN 31.5 31.5 31.5 31.5
MAX 101.3 101.3 101.3 101.3
CONDENSER Sys. 1 4444
ROWS Sys. 2 4444
Sys. 3 4444
Sys. 4 4444
CONDENSER FACE AREA (m2)55 55 55 55
NO. 16 16 16 16
CONDENSER HP/KW 3/2.8 3/2.8 3/2.8 3/2.8
FANS NO. OF BLADES 6666
AIRFLOW L/sec. 126,478 126,478 126,478 126,478
SHIPPING Al. FIN 13,909 13,909 13,909 13,909
WEIGHT Cu. FIN 15,965 15,965 15,965 15,965
(KGS.) OPERATING Al. FIN 14,263 14,263 14,263 14,263
Cu. FIN 16,328 16,328 16,328 16,328
REFRIGERANT CHARGE Sys. 1 95 95 95 95
(KGS. R-22) Sys. 2 107 107 107 107
Sys. 3 95 95 95 95
Sys. 4 107 107 107 107

YORK INTERNATIONAL
12
DIMENSIONS
MODELS YDAS 410 - 490
(English Units)
LD01604
LD01603
NOTES:
1. Clearances - Recommended YORK clearances for peak performance, reliable operation and access for maintenance:
Side to wall 8'0"*; Rear to wall 8'0"; Control Panel End to wall 5'0"*; Over the top - No obstructions allowed; Distance between
adjacent units 12'0", (Walls should be no higher than the unit.)
*No more than one wall can be higher than the top of the unit. The area within the clearances shown above and area under the unit must
be kept clear of all obstructions or clutter that would impede air flow through the unit. In installations where winter operation is intended
and snow accumulations are expected, additional unit elevation must be provided to insure air flow.
NOTE: Reduced clearances may be used due to jobsite restrictions. The unit will unload to prevent the condenser pressure and motor
current from exceeding the maximum limits and will continue to operate without nuisance high-pressure or motor-current cutouts
even though the air flow may be restricted at these conditions.
2. Cooler liquid connection sizes (inlet and outlet): 8" victaulic for all models.
3. Spring isolators (OPTIONAL) will increase overall height of unit.
FIG. 3  MODEL YDAS 410 - 490 DIMENSIONS (ENGLISH UNITS)

FORM 201.10-NM4
13
YORK INTERNATIONAL
DIMENSIONS
MODELS YDAS 410 - 490
(English Units)
LD01602
LD01601
FIG. 4  MODEL YDAS 410 - 490 DIMENSIONS (ENGLISH UNITS)

YORK INTERNATIONAL
14
MODELS YDAS 410 - 490
(SI Units)
LD01608
LD01607
NOTES:
1. Clearances - Recommended YORK clearances for peak performance, reliable operation and maintenance:
Side to wall 2438 mm*; Rear to wall 2438 mm; Control Panel End to wall 1524 mm*; Over the top - No obstructions allowed; Distance
between adjacent units 3658 mm, (Walls should be no higher than the unit.)
*No more than one high wall can be higher than the top of the unit. The area within the clearances shown above and area under the unit
must be kept clear of all obstructions or clutter that would impede air flow through the unit. In installations where winter operation is
intended and snow accumulations are expected, additional unit height must be provided to insure air flow.
NOTE: Reduced clearances may be used due to jobsite restrictions. The unit will unload to prevent the condenser pressure and motor
current from exceeding the maximum limits and will continue to operate without nuisance high-pressure or motor-current cutouts
even though the air flow may be restricted at these conditions.
2. Cooler liquid connection sizes (inlet and outlet): 8" victaulic for all models.
3. Spring isolators (OPTIONAL) will increase overall height of unit.
FIG. 5  MODEL YDAS 410 - 490 DIMENSIONS (SI UNITS)

FORM 201.10-NM4
15
YORK INTERNATIONAL
MODELS YDAS 410 - 490
(SI Units)
LD01606
LD01605
FIG. 6  MODEL YDAS 410 - 490 DIMENSIONS (SI UNITS)

YORK INTERNATIONAL
16
STANDARD COMPRESSOR POWER Supplies
(Each Power Supply Individually Protected with Field-Supplied Branch Circuit Protection)
LEGEND
ACR-LINE ACROSS THE LINE START
CB CIRCUIT BREAKER
DE FU DUAL ELEMENT FUSE
DISC SW DISCONNECT SWITCH
FACT MOUNT CB FACTORY-MOUNTED CIRCUIT BREAKER
FACT MOUNT FUSE FACTORY-MOUNTED FUSES
FLA FULL LOAD AMPS
HZ HERTZ
MAX MAXIMUM
MCA MINIMUM CIRCUIT AMPACITY
NOTES for Electrical Data:
1. Minimum circuit ampacity (MCA) is based on 125% of the rated load amps for the largest motor plus 100% of the rated load amps for all other
loads included in the circuit, per N.E.C. Article 430-24. If a Factory Mounted Control Transformer is provided, add the following to the system #1
MCA values in the YCAS Tables: -17, add 10 amps; -28, add 9 amps; -40, add 5 amps; -46, add 4 amps; -58, add 3 amps.
2. The recommended disconnect switch is based on a minimum of 115% of the summation rated load amps of all the loads included in the circuit,
per N.E.C. 440-12A1.
3. Minimum fuse size is based on 150% of the largest motor RLA plus 100% of the remaining RLAs (U.L. Standard 1995, Section 36.1).
4. Maximum dual element fuse size is based on 225% maximum plus 100% of the rated load amps for all other loads included in the circuit, per
N.E.C. 440-22.
5. Minimum circuit breaker is 150% maximum plus 100% of rated load amps included in the circuit, per circuit per U.L. 1995 Fig. 36.2.
6. Maximum circuit breaker is based on 225% maximum plus 100% of the rated load amps for all loads included in the circuit, per circuit, per U.L.
1995 Fig. 36.2.
7. The Incoming Wire Range is the minimum and maximum wire size that can be accommodated by unit wiring lugs. The (1), (2), (3) or (4) preceding
the wire range indicates the number of termination points available per phase of the wire range specified. The (1-2), (1-3), or (1-4) preceding the
wire range indicates that a single multi-termination lug is available per phase that can accept two (1-2) to four (1-4) wires of the wire range
specified. (1) #1-600MCM or (2) #1-250MCM indicates that a single lug is supplied and it will accept a single wire up to 600MCM or 2 wires up
to 250MCM. Actual wire size and number of wires per phase must be determined based on ampacity and job requirements using N.E.C. wire
sizing information. The above recommendations are based on the National Electrical Code and using copper connectors only. Field wiring must
also comply with local codes.
8. A ground lug is provided for each compressor system to accommodate field grounding conductor per N.E.C. Article 250-54. A control circuit
grounding lug is also supplied. Incoming ground wire range is #6 - 350 MCM.
9. The supplied disconnect is a Disconnecting Means as defined in N.E.C. 100.B, and is intended for isolating the unit from the available power
supply to perform maintenance and troubleshooting. This disconnect is not intended to be a Load Break Device.
MIN MINIMUM
MIN NF MINIMUM NON-FUSED
RLA RUNNING LOAD AMPS
S.P. WIRE SINGLE-POINT WIRING
UNIT MTD SERV SW UNIT-MOUNTED SERVICE (NON-FUSED
DISCONNECT SWITCH)
WYE-DELTA WYE-DELTA START
XLRA ACROSS-THE-LINE INRUSH LOCKED
ROTOR AMPS
YLRA WYE-DELTA INRUSH LOCKED
ROTOR AMPS
ELECTRICAL DATA
SYSTEM #1 FIELD-SUPPLIED WIRING
MODEL VOLTS MCA1MIN NF D.E. FU C.B. WIRE RANGE7 (LUGS) COMPRESSOR FANS
DISC SW2MIN.3MAX.4MIN.5MAX.6WYE-DELTA ACR-LINE RLA Y LRA X LRA FLA (EA)
460 314 400 400 500 400 500 (2) #6 - 250 1/0 - 500 235 398 1261 5.0
YDAS410 575 253 400 300 400 300 400 (2) #6 - 250 1/0 - 500 187 311 987 4.9
460 314 400 400 500 400 500 (2) #6 - 250 1/0 - 500 235 398 1261 5.0
YDAS440 575 253 400 300 400 300 400 (2) #6 - 250 1/0 - 500 187 311 987 4.9
460 314 400 400 500 400 500 (2) #6 - 250 1/0 - 500 235 398 1261 5.0
YDAS470 575 253 400 300 400 300 400 (2) #6 - 250 1/0 - 500 187 311 987 4.9
460 332 400 400 500 400 500 (2) #6 - 250 1/0 - 500 249 398 1261 5.0
YDAS490 575 267 400 350 450 350 400 (2) #6 - 250 1/0 - 500 198 311 987 4.9
SYSTEM #2 FIELD-SUPPLIED WIRING
MODEL VOLTS MCA1MIN NF D.E. FU C.B. WIRE RANGE7 (LUGS) COMPRESSOR FANS
DISC SW2MIN.3MAX.4MIN.5MAX.6WYE-DELTA ACR-LINE RLA Y LRA X LRA FLA (EA)
460 251 400 300 400 300 400 (2) #6 - 250 1/0 - 500 184 331 1051 5.0
YDAS410 575 204 200 250 350 250 300 (2) #6 - 250 1/0 - 500 147 270 857 4.9
460 251 400 300 400 300 400 (2) #6 - 250 1/0 - 500 184 331 1051 5.0
YDAS440 575 204 200 250 350 250 300 (2) #6 - 250 1/0 - 500 147 270 857 4.9
460 314 400 400 500 400 500 (2) #6 - 250 1/0 - 500 235 398 1261 5.0
YDAS470 575 253 400 300 400 300 400 (2) #6 - 250 1/0 - 500 187 311 987 4.9
460 332 400 400 500 400 500 (2) #6 - 250 1/0 - 500 249 398 1261 5.0
YDAS490 575 267 400 350 450 350 400 (2) #6 - 250 1/0 - 500 198 311 987 4.9

FORM 201.10-NM4
17
YORK INTERNATIONAL
VOLTAGE CODE
-17 = 200-3-60
-28 = 230-3-60
-40 = 380-3-60
-46 = 460-3-60
-58 = 575-3-60
LD01173D
CONTROL MIN MAX DUAL NON-FUSED
UNIT POWER CIRCUIT ELEMENT DISC. SW.
VOLTAGE SUPPLY AMPACITY FUSE SIZE SIZE
Standard
Models w/o 115-1-60 20A 20A 30A
Transformers
CONTROL POWER SUPPLY
2L3
2L22L1G2L 1L1 1L2 1L3
GG
SYS 1
POWER
SUPPLY
SYS 2
POWER
SUPPLY
230-1-50
CONTROL
POWER
SUPPLY
SYS.1
TERMINALS
SYS.2
TERMINALS
UNIT PANEL (MASTER)
2L3
2L22L1G2L 1L1 1L2 1L3
GG
SYS 4
POWER
SUPPLY
SYS 3
POWER
SUPPLY
BY OTHERS
230-1-50
CONTROL
POWER
SUPPLY
SYS.4
TERMINALS SYS.3
TERMINALS
UNIT PANEL (FOLLOWER)
SEE NOTE 7 SEE NOTE 7
SEE NOTE 8
(TYP)
TWISTED PAIR COMMUNICATION LINE
(FACTORY INSTALLED, FIELD CONNECTED)
See power wiring schematics on pages 42 - 65.
STANDARD COMPRESSOR POWER SUPPLIESWIRING
SYSTEM #3 FIELD-SUPPLIED WIRING
MODEL VOLTS MCA1MIN NF D.E. FU C.B. WIRE RANGE7 (LUGS) COMPRESSOR FANS
DISC SW2MIN.3MAX.4MIN.5MAX.6WYE-DELTA ACR-LINE RLA Y LRA X LRA FLA (EA)
460 250 400 300 400 300 400 (2) #6 - 250 1/0 - 500 183 331 1051 5.0
YDAS410 575 203 200 250 300 250 300 (2) #6 - 250 1/0 - 500 147 270 857 4.9
460 314 400 400 500 400 500 (2) #6 - 250 1/0 - 500 235 398 1261 5.0
YDAS440 575 253 400 300 400 300 400 (2) #6 - 250 1/0 - 500 187 311 987 4.9
460 314 400 400 500 400 500 (2) #6 - 250 1/0 - 500 235 398 1261 5.0
YDAS470 575 253 400 300 400 300 400 (2) #6 - 250 1/0 - 500 187 311 987 4.9
460 332 400 400 500 400 500 (2) #6 - 250 1/0 - 500 249 398 1261 5.0
YDAS490 575 267 400 350 450 350 400 (2) #6 - 250 1/0 - 500 198 311 987 4.9
SYSTEM #4 FIELD-SUPPLIED WIRING
MODEL VOLTS MCA1MIN NF D.E. FU C.B. WIRE RANGE7 (LUGS) COMPRESSOR FANS
DISC SW2MIN.3MAX.4MIN.5MAX.6WYE-DELTA ACR-LINE RLA Y LRA X LRA FLA (EA)
460 224 400 300 350 300 350 (2) #6 - 250 1/0 - 500 163 262 838 5.0
YDAS410 575 183 200 225 300 225 250 (2) #6 - 250 1/0 - 500 130 204 655 4.9
460 251 400 300 400 300 400 (2) #6 - 250 1/0 - 500 184 331 1051 5.0
YDAS440 575 204 200 250 350 250 300 (2) #6 - 250 1/0 - 500 147 270 857 4.9
460 314 400 400 500 400 500 (2) #6 - 250 1/0 - 500 235 398 1261 5.0
YDAS470 575 253 400 300 400 300 400 (2) #6 - 250 1/0 - 500 187 311 987 4.9
460 332 400 400 500 400 500 (2) #6 - 250 1/0 - 500 249 398 1261 5.0
YDAS490 575 267 400 350 450 350 400 (2) #6 - 250 1/0 - 500 198 311 987 4.9

YORK INTERNATIONAL
18
OPTIONAL DUAL-POINT POWER SUPPLIES
(Dual-Point Power Individually Protected with Field-Supplied Circuit Protection)
NOTES for Electrical Data:
1. Minimum circuit ampacity (MCA) is based on 125% of the rated load amps for the largest motor plus 100% of the rated load amps for all other
loads included in the circuit, per N.E.C. Article 430-24. If a Factory Mounted Control Transformer is provided, add the following to the system #1
MCA values in the YCAS Tables: -17, add 10 amps; -28, add 9 amps; -40, add 5 amps; -46, add 4 amps; -58, add 3 amps (Add these values to
system #3 for YCAS 310 - 380 and YDAS models also).
2. The recommended disconnect switch is based on a minimum of 115% of the summation rated load amps of all the loads included in the circuit,
per N.E.C. 440-12A1.
3. Minimum fuse size is based on 150% of the largest motor RLA plus 100% of the remaining RLAs (U.L. Standard 1995, Section 36.1). Minimum
fuse rating = (1.5 x largest compressor RLA) + other compressor RLAs + (# fans x each fan FLA).
4. Maximum dual element fuse size is based on 225% maximum plus 100% of the rated load amps for all other loads included in the circuit, per
N.E.C. 440-22. Maximum fuse rating = (2.25 x largest compressor RLA) + other compressor RLAs + (# fans x each fan FLA).
5. Minimum circuit breaker is 150% maximum plus 100% of rated load amps included in the circuit, per circuit per U.L. 1995 Fig. 36.2. Minimum
circuit breaker rating = (1.5 x largest compressor RLA) + other compressor RLAs + (# fans x each fan FLA).
6. Maximum circuit breaker is based on 225% maximum plus 100% of the rated load amps for all loads included in the circuit, per circuit, per U.L.
1995 Fig. 36.2. Maximum circuit breaker rating = (2.25 x largest compressor RLA) + other compressor RLAs + (# fans x each fan FLA).
7. The Incoming Wire Range is the minimum and maximum wire size that can be accommodated by unit wiring lugs. The (1), (2), (3) or (4) preceding
the wire range indicates the number of termination points available per phase of the wire range specified. The (1-2), (1-3), or (1-4) preceding the
wire range indicates that a single multi-termination lug is available per phase that can accept two (1-2) to four (1-4) wires of the wire range
specified. (1) #1-600MCM or (2) #1-250MCM indicates that a single lug is supplied and it will accept a single wire up to 600MCM or 2 wires up
to 250MCM. Actual wire size and number of wires per phase must be determined based on ampacity and job requirements using N.E.C. wire
sizing information. The above recommendations are based on the National Electrical Code and using copper connectors only. Field wiring must
also comply with local codes.
8. A ground lug is provided for each compressor system to accommodate field grounding conductor per N.E.C. Article 250-54. A control circuit
grounding lug is also supplied. Incoming ground wire range is #6 - 350 MCM.
9. The field supplied disconnect is a Disconnecting Means as defined in N.E.C. 100.B, and is intended for isolating the unit from the available power
supply to perform maintenance and troubleshooting. This disconnect is not intended to be a Load Break Device.
LEGEND
ACR-LINE ACROSS THE LINE START
CB CIRCUIT BREAKER
DE FU DUAL ELEMENT FUSE
DISC SW DISCONNECT SWITCH
FACT MOUNT CB FACTORY-MOUNTED CIRCUIT BREAKER
FACT MOUNT FUSE FACTORY-MOUNTED FUSES
FLA FULL LOAD AMPS
HZ HERTZ
MAX MAXIMUM
MCA MINIMUM CIRCUIT AMPACITY
MIN MINIMUM
MIN NF MINIMUM NON-FUSED
RLA RUNNING LOAD AMPS
S.P. WIRE SINGLE-POINT WIRING
UNIT MTD SERV SW UNIT-MOUNTED SERVICE (NON-FUSED
DISCONNECT SWITCH)
WYE-DELTA WYE-DELTA START
XLRA ACROSS-THE-LINE INRUSH LOCKED
ROTOR AMPS
YLRA WYE-DELTA INRUSH LOCKED
ROTOR AMPS
ELECTRICAL DATA
SYSTEM 3 & 4 FIELD-SUPPLIED WIRING
MODEL VOLTS MIN NF D.E. FU WIRE RANGE7UNIT-MOUNTED SERVICE SWITCH
MCA1DISC SW2MIN.3MAX.4(LUGS) RATING2WIRE RANGE7
YDAS410 460 432 800 500 600 (2) #2-600 800 (3) 3/0-500
575 353 400 400 450 (2) #2-600 400 (1) #1-600 or (2) #1-250
YDAS440 460 518 800 600 700 (2) #2-600 800 (3) 3/0-500
575 420 800 500 600 (2) #2-600 800 (3) 3/0-500
YDAS470 460 569 800 700 800 (2) #2-600 800 (3) 3/0-500
575 459 800 600 600 (2) #2-600 800 (3) 3/0-500
YDAS490 460 601 800 700 800 (2) #2-600 800 (3) 3/0-500
575 485 800 600 600 (2) #2-600 800 (3) 3/0-500
SYSTEM 1 & 2 FIELD-SUPPLIED WIRING
MODEL VOLTS MIN NF D.E. FU WIRE RANGE7UNIT-MOUNTED SERVICE SWITCH
MCA1DISC SW2MIN.3MAX.4(LUGS) RATING2WIRE RANGE7
YDAS410 460 518 800 600 700 (2) #2-600 800 (3) 3/0-500
575 420 800 500 600 (2) #2-600 800 (3) 3/0-500
YDAS440 460 518 800 600 700 (2) #2-600 800 (3) 3/0-500
575 420 800 500 600 (2) #2-600 800 (3) 3/0-500
YDAS470 460 569 800 700 800 (2) #2-600 800 (3) 3/0-500
575 459 800 600 600 (2) #2-600 800 (3) 3/0-500
YDAS490 460 601 800 700 800 (2) #2-600 800 (3) 3/0-500
575 485 800 600 600 (2) #2-600 800 (3) 3/0-500

FORM 201.10-NM4
19
YORK INTERNATIONAL
VOLTAGE CODE
-17 = 200-3-60
-28 = 230-3-60
-40 = 380-3-60
-46 = 460-3-60
-58 = 575-3-60
DUAL-POINT SUPPLIES OPTION
G
L1 L2 L3
G2L 2L32L22L1
L1 L2 L3
1L1 1L2 1L3
G
230-1-50
CONTROL
POWER
SUPPLY
UNIT PANEL (MASTER)
COMPRESSOR
POWER
SUPPLY
BY OTHERS
G2L 2L32L22L1 1L1 1L2 1L3
GG
230-1-50
CONTROL
POWER
SUPPLY
UNIT PANEL (FOLLOWER)
COMPRESSOR
POWER
SUPPLY
LD01175D
SEE NOTE 7 SEE NOTE 7
SEE NOTE 8 (TYP)
TWISTED PAIR COMMUNICATION LINE
(FACTORY INSTALLED, FIELD CONNECTED)
CONTROL MIN MAX DUAL NON-FUSED
UNIT POWER CIRCUIT ELEMENT DISC. SW.
VOLTAGE SUPPLY AMPACITY FUSE SIZE SIZE
Standard
Models w/o 115-1-60 20A 20A 30A
Transformers
CONTROL POWER SUPPLY
See power wiring schematics on pages 42 - 65.
SYSTEM #1 SYSTEM #2
MODEL VOLTS COMPRESSOR FANS COMPRESSOR FANS
RLA Y LRA X LRA FLA (EA) RLA Y LRA XLRA FLA (EA)
YDAS410 460 183 331 1051 5.0 163 262 838 5.0
575 147 270 857 5.0 130 204 655 4.9
YDAS440 460 235 398 1261 5.0 184 331 1051 5.0
575 187 311 987 5.0 147 270 857 4.9
YDAS470 460 235 398 1261 5.0 235 398 1261 5.0
575 187 311 987 5.0 187 311 987 4.9
YDAS490 460 249 398 1261 5.0 249 398 1261 5.0
575 198 311 987 5.0 198 311 987 4.9
SYSTEM #1 SYSTEM #2
MODEL VOLTS COMPRESSOR FANS COMPRESSOR FANS
RLA Y LRA X LRA FLA (EA) RLA Y LRA XLRA FLA (EA)
YDAS410 460 235 398 1261 5.0 184 331 1051 5.0
575 187 311 987 5.0 147 270 857 4.9
YDAS440 460 235 398 1261 5.0 184 331 1051 5.0
575 187 311 987 5.0 147 270 857 4.9
YDAS470 460 235 398 1261 5.0 235 398 1261 5.0
575 187 311 987 5.0 187 311 987 4.9
YDAS490 460 249 398 1261 5.0 249 398 1261 5.0
575 198 311 987 5.0 198 311 987 4.9

YORK INTERNATIONAL
20
OPTIONAL DUAL-POINT SUPPLIES WITH SEPARATE SYSTEM CIRCUIT BREAKERS
(Each Power Supply Individually Protected with Factory-Mounted Circuit Breakers)
NOTES for Electrical Data:
1. Minimum circuit ampacity (MCA) is based on 125% of the rated load amps for the largest motor plus 100% of the rated load amps for all other
loads included in the circuit, per N.E.C. Article 430-24. If a Factory Mounted Control Transformer is provided, add the following to the system #1
MCA values in the YCAS Tables: -17, add 10 amps; -28, add 9 amps; -40, add 5 amps; -46, add 4 amps; -58, add 3 amps (Add these values to
system #3 for YCAS 310 - 380 and YDAS models also).
2. The recommended disconnect switch is based on a minimum of 115% of the summation rated load amps of all the loads included in the circuit,
per N.E.C. 440-12A1.
3. Minimum fuse size is based on 150% of the largest motor RLA plus 100% of the remaining RLAs (U.L. Standard 1995, Section 36.1). Minimum
fuse rating = (1.5 x largest compressor RLA) + other compressor RLAs + (# fans x each fan FLA).
4. Maximum dual element fuse size is based on 225% maximum plus 100% of the rated load amps for all other loads included in the circuit, per
N.E.C. 440-22. Maximum fuse rating = (2.25 x largest compressor RLA) + other compressor RLAs + (# fans x each fan FLA).
5. Minimum circuit breaker is 150% maximum plus 100% of rated load amps included in the circuit, per circuit per U.L. 1995 Fig. 36.2. Minimum
circuit breaker rating = (1.5 x largest compressor RLA) + other compressor RLAs + (# fans x each fan FLA).
6. Maximum circuit breaker is based on 225% maximum plus 100% of the rated load amps for all loads included in the circuit, per circuit, per U.L.
1995 Fig. 36.2. Maximum circuit breaker rating = (2.25 x largest compressor RLA) + other compressor RLAs + (# fans x each fan FLA).
7. The Incoming Wire Range is the minimum and maximum wire size that can be accommodated by unit wiring lugs. The (1), (2), (3) or (4) preceding
the wire range indicates the number of termination points available per phase of the wire range specified. The (1-2), (1-3), or (1-4) preceding the
wire range indicates that a single multi-termination lug is available per phase that can accept two (1-2) to four (1-4) wires of the wire range
specified. (1) #1-600MCM or (2) #1-250MCM indicates that a single lug is supplied and it will accept a single wire up to 600MCM or 2 wires up
to 250MCM. Actual wire size and number of wires per phase must be determined based on ampacity and job requirements using N.E.C. wire
sizing information. The above recommendations are based on the National Electrical Code and using copper connectors only. Field wiring must
also comply with local codes.
8. A ground lug is provided for each compressor system to accommodate field grounding conductor per N.E.C. Article 250-54. A control circuit
grounding lug is also supplied. Incoming ground wire range is #6 - 350 MCM.
9. The field supplied disconnect is a Disconnecting Means as defined in N.E.C. 100.B, and is intended for isolating the unit from the available power
supply to perform maintenance and troubleshooting. This disconnect is not intended to be a Load Break Device.
SYSTEM 3 & 4 FIELD-SUPPLIED WIRING
MODEL VOLTS MCA1MIN NF D.E. FU C.B.
DISC SW2MIN.3MAX.4MIN.5MAX.6WIRE RANGE7 (LUGS)
200 986 1200 1200 1200 1200 1200 (3) 3/0-500
230 883 1000 1000 1200 1000 1200 (3) 3/0-500
YDAS410 380 538 600 600 700 600 700 (3) 3/0-500
460 432 600 500 600 500 600 (1) #1-600 or (2) #1-250
575 353 400 400 450 400 450 (1) #1-600 or (2) #1-250
380 645 800 800 800 800 800 (3) 3/0-500
YDAS440 460 518 600 600 700 600 700 (3) 3/0-500
575 420 600 500 600 500 600 (1) #1-600 or (2) #1-250
380 708 800 800 1000 800 1000 (3) 3/0-500
YDAS470 460 569 600 700 800 700 800 (3) 3/0-500
575 459 600 600 600 600 600 (1) #1-600 or (2) #1-250
380 748 800 1000 1000 1000 1000 (3) 3/0-500
YDAS490 460 601 800 700 800 700 800 (3) 3/0-500
575 485 600 600 600 600 600 (1) #1-600 or (2) #1-250
SYSTEM 1 & 2 FIELD-SUPPLIED WIRING
MODEL VOLTS MCA1MIN NF D.E. FU C.B.
DISC SW2MIN.3MAX.4MIN.5MAX.6WIRE RANGE7(LUGS)
380 645 800 800 800 800 800 (3) 3/0-500
YDAS410 460 518 600 600 700 600 700 (3) 3/0-500
575 420 600 500 600 500 600 (1) #1-600 or (2) #1-250
380 645 800 800 800 800 800 (3) 3/0-500
YDAS440 460 518 600 600 700 600 700 (3) 3/0-500
575 420 600 500 600 500 600 (1) #1-600 or (2) #1-250
380 708 800 800 1000 800 1000 (3) 3/0-500
YDAS470 460 569 600 700 800 700 800 (3) 3/0-500
575 459 600 600 600 600 600 (1) #1-600 or (2) #1-250
380 748 800 1000 1000 1000 1000 (3) 3/0-500
YDAS490 460 601 800 700 800 700 800 (3) 3/0-500
575 485 600 600 600 600 600 (1) #1-600 or (2) #1-250
LEGEND
ACR-LINE ACROSS THE LINE START
CB CIRCUIT BREAKER
DE FU DUAL ELEMENT FUSE
DISC SW DISCONNECT SWITCH
FACT MOUNT CB FACTORY-MOUNTED CIRCUIT BREAKER
FACT MOUNT FUSE FACTORY-MOUNTED FUSES
FLA FULL LOAD AMPS
HZ HERTZ
MAX MAXIMUM
MCA MINIMUM CIRCUIT AMPACITY
MIN MINIMUM
MIN NF MINIMUM NON-FUSED
RLA RUNNING LOAD AMPS
S.P. WIRE SINGLE-POINT WIRING
UNIT MTD SERV SW UNIT-MOUNTED SERVICE (NON-FUSED
DISCONNECT SWITCH)
WYE-DELTA WYE-DELTA START
XLRA ACROSS-THE-LINE INRUSH LOCKED
ROTOR AMPS
YLRA WYE-DELTA INRUSH LOCKED
ROTOR AMPS