York eco YCAS0685EB Quick start guide

WIRING DIAGRAM
eco2
AIR COOLED SCREW LIQUID CHILLERS
MODELS YCAS STYLE ‘F’
Supersedes 201.18-W7 (700) Form 201.18-W9 (601)
MODELS YCAS0685 THROUGH YCAS0965
50Hz
Better ecology,
Better economy.
28971AR

YORK INTERNATIONAL
2
Nomenclature ................................................................................................ 3
Electrical Data ............................................................................................... 4
60 Hz .................................................................................................... 4
50 Hz .................................................................................................... 6
PowerWiring Possibilities .............................................................................. 10
Elementary Power 2 Wiring Diagrams ........................................................... 14
Fig.1 - Elementary Diagram ................................................................. 14
Fig.2 - Elementary Diagram ................................................................. 15
Standard Compressor Power Supplies .......................................................... 16
Fig.3 - Across-The-Line Start ............................................................... 16
Fig. 4 - Wye-Delta Start ......................................................................... 17
3Wiring Diagrams ......................................................................................... 16
Fig.5 - Elementary Diagram, Across-The-Line Start............................. 18
Fig.6 - Connection Diagram.................................................................. 20
Fig.7 - Connection Diagram (continued)............................................... 22
Fig.8 - Connection Diagram (continued)............................................... 23
Fig.9 - Compressor Terminal Box ......................................................... 24
Fig.10 - CompressorTerminal Box ....................................................... 25
DXST Direct Drive ......................................................................................... 26
Fig.11 - Elementary Diagram, Detail A ................................................. 26
Fig.12 - Elementary Diagram, Detail B ................................................. 27
Fig.13 - Elementary Diagram, Detail C ................................................. 28
Connection Diagram SystemWiring .............................................................. 29
Control PowerTransformer Kit (Optional)....................................................... 31
TABLE OF CONTENTS
WARNING
HIGHVOLTAGE
is used in the operation of this equipment
DEATH OR SERIOUS INJURY
may result if personnel fail to observe precautions.
Work on electronic equipment should not be undertaken unless the individual(s) has (have) been
trained in the proper maintenance of the equipment and is (are) familiar with its potential hazards.
Shut off power supply to equipment before beginning work and follow lockout procedures. When
working inside equipmentwith power off,take special careto dischargeevery capacitor likely tohold
dangerouspotential.
Be careful not to contact high voltage connections when installing or operating this equipment.
LOWVOLTAGE
DO NOT be misled by the term “low voltage”. Voltages as low as 50 volts
may cause death.

FORM 201.18-W9
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YORK INTERNATIONAL
The Model Number denotes the following characteristics of the unit:
YORK Chiller
YC = YORK Chiller
Air-Cooled
Compressor Type
S = Screw
Nominal Capacity
Unit Designator
E = High Efficiency
Design Series
Type Start
Y = Star (WYE)-Delta
X = Across-the-Line
Voltage Code
50 = 380/415-3-50
Refrigerant
B = R-407C
YC A S 0685 E B 50 Y F
NOMENCLATURE

YORK INTERNATIONAL
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ELECTRICAL DATA (50 Hz)
MULTIPLE POINT POWER SUPPLY CONNECTION
(Two Field Provided Power Supply Circuits to the Chiller. Field Connections to Factory provided Terminal Block (Std)
or Disconnects (Opt) in the Options Panel. Factory Wired Terminal Blocks or Individual System Circuit Breakers* (opt10)
in each of the two Motor Control Centers.)
ELECTRICAL SUPPLY #1 FIELD SUPPLIED WIRING
Field Provided Power Supply Factory Provided (Lugs) Compressor #1 Compressor #3 Fan11, 12
Model Data
YCAS Volts MRA1Min NF Protection13 * Standard Optional NF RLA Y-
∆∆
∆∆
∆ LRA X-LRA RLA Y-
∆∆
∆∆
∆ LRA X-LRA Qty FLA (ea) LRA (ea)
(MCA) Disc SW2,9 Min.3, 5 Max.4, 6 Terminal block Disc. Switch
0685EB 380 367 400 400 500 (2) # 2 - 4/0 (2) 3/0 - 250 99 219 692 162 267 857 7 5.7 25
0775EB 380 367 400 400 450 (2) # 2 - 4/0 (2) 3/0 - 250 128 267 857 128 267 857 8 5.7 25
0835EB 380 410 400 450 500 (2) 1/0 - 300 (2) 250 - 500 163 267 857 128 267 857 8 5.7 25
0905EB 380 452 600 500 500 (2) 1/0 - 300 (2) 250 - 500 163 267 857 163 267 857 8 5.7 25
0965EB 380 442 600 450 500 (2) 1/0 - 300 (2) 250 - 500 155 267 857 148 267 857 11 5.7 25
Wire Range7
Over-current
See page 8 for Electrical Data footnotes.

FORM 201.18-W9
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ELECTRICAL SUPPLY #2 FIELD SUPPLIED WIRING
Field Provided Power Supply Factory Provided (Lugs) Compressor #2 Fan11, 12
Model Data
YCAS Volts MRA1Min NF Protection13 Standard Optional NF RLA Y-
∆∆
∆∆
∆ LRA X-LRA Qty FLA (ea) LRA (ea)
(MCA) Disc SW2,9 Min.3, 5 Max.4, 6 Terminal Block Disc. Switch
0685EB 380 141 150 175 225 (1) # 2 - 4/0 (1) # 2 - 4/0 99 219 629 3 5.7 25
0775EB 380 184 200 225 300 (1) # 2 - 4/0 (1) #4 - 300 128 267 857 4 5.7 25
0835EB 380 184 200 225 300 (1) # 2 - 4/0 (1) #4 - 300 128 267 857 4 5.7 25
0905EB 380 226 250 300 350 (1) 1/0 - 300 (1) #4 - 300 163 267 857 4 5.7 25
0965EB 380 223 250 300 350 (1) 1/0 - 300 (1) #4 - 300 155 267 857 5 5.7 25
Wire Range7
Over-current

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ELECTRICAL DATA (50 Hz)
OPTIONAL SINGLE POINT POWER SUPPLY CONNECTION
WITH INDIVIDUAL SYSTEM CIRCUIT BREAKERS
One Field Provided Power Supply Circuit to the chiller. Field connections to Factory Provided Terminal Block (standard) or
Non-Fused Disconnect (option) in the Options Panel. Individual System Circuit Breakers in each Motor Control Center.
CHILLER FIELD-SUPPLIED WIRING
MODEL FIELD PROVIDED POWER SUPPLY FACTORY PROVIDED (LUGS) WIRE RANGE 7
YCAS MIN NF OVER-CURRENT PROTECTION STANDARD OPTIONAL NF
MRA1DISC SW 2,9 MIN.3, 5 MAX.4, 6 TERMINAL BLOCK DISC. SWITCH
0685EB 482 600 600 600 (2) 2/0 - 500 (2) 250 - 500
0775EB 517 600 600 600 (2) 2/0 - 500 (2) 250 - 500
0835EB 560 600 700 700 (2) 2/0 - 500 (2) 250 - 500
0905EB 637 800 700 700 (3) 1/0 - 300 (3) 2/0 - 400
0965EB 625 800 800 800 (3) 1/0 - 300 (3) 2/0 - 400
See page 8 for Electrical Data footnotes.

FORM 201.18-W9
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YORK INTERNATIONAL
Compressor #2 Data Fan Data11, 12
RLA Y-
∆∆
∆∆
∆ LRA X-LRA Qty FLA (ea) LRA (ea)
99 219 629 3 5.7 25
128 267 857 4 5.7 25
128 267 857 4 5.7 25
163 267 857 4 5.7 25
155 267 857 5 5.7 25
Compressor #1 Data Compressor #3 Data Fan Data11, 12
RLA Y-
∆∆
∆∆
∆
LRA X-LRA RLA Y-
∆∆
∆∆
∆
LRA X-LRA Qty FLA (ea) LRA (ea)
99 219 692 162 267 857 7 5.7 25
128 267 857 128 267 857 8 5.7 25
163 267 857 128 267 857 8 5.7 25
163 267 857 163 267 857 8 5.7 25
155 267 857 148 267 857 11 5.7 25

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ELECTRICAL DATA
NOTES (pages 4 - 7)
1. MRA is Maximum Running Amps, the maximum continuous current at any operating point in the rating range. Also referred to as MCA,
or Minimum Circuit Ampacity to be provided by the installer. If a Factory Mounted Control Transformer is provided, add 3 amps to the
system #1 MCA values in the YCAS Tables.
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 recommended fuse size is based on 150% of the largest motor RLA plus 100% of the remaining RLAs. Minimum fuse rating
= (1.5 x largest compressor RLA) + other compressor RLAs + (# fans x each fan motor 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 motor FLA).
5. Minimum recommended circuit breaker is 150% maximum plus 100% of rated load amps included in the circuit. Minimum circuit breaker
rating = (1.5 x largest compressor RLA) + other compressor RLAs + (# fans x each fan motor 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 motor FLA).
7. The Incoming Wire Range is the minimum and maximum wire size that can be accommodated by unit wiring lugs. The (1), (2), or (3)
indicate the number of termination points or lugs which are available per phase. 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.
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.
10. Two-compressor machines with single-point power connection, and equipped with Star-Delta compressor motor start must also include
Factory provided circuit breakers in each motor control center.
11. Consult factory for Electrical Data on units equipped with “High Static Fan” option. 50Hz High Static Fans are 3.5kW each.
12. FLA for each “Low Noise Fan” motor: 380v/50Hz = 4.1A.
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
LEGEND
VOLTAGE CODE
50=380/415-3-50

FORM 201.18-W9
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YORK INTERNATIONAL
CONTROL POWER SUPPLY (UNITS WITHOUT STANDARD CONTROL CIRCUIT TRANSFORMERS)
NO. OF CONTROL MCA MAX DUAL NON-FUSED
COMPRESSORS POWER (MAX LOAD ELEMENT DISCONNECT
SUPPLY CURRENT) FUSE SIZE SWITCH SIZE
2 115V-1Ø 20A 20A 30A
3 or 4 115V-1Ø 30A 30A 30A
(Non-CE 50/60Hz)
3 or 4 115V-1Ø 25A 30A 30A
(CE 50Hz)
NO. OF CONTROL MCA RECOMMENDED NON-FUSED
COMPRESSORS POWER (MAX LOAD DUAL ELEMENT DISCONNECT
SUPPLY CURRENT) FUSE SIZE SWITCH SIZE
2 400V - 50Hz 6.3A 15A –––
3 or 4 400V - 50Hz 9.4A 15A –––
CONTROL POWER SUPPLY (UNITS WITH STANDARD CONTROL CIRCUIT TRANSFORMERS)

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POWER WIRING POSSIBILITIES
MULTIPLE POINT WITH SEPARATE SYSTEM CIRCUIT BREAKERS
MULTIPLE POINT NON-FUSED DISCONNECTS WITH SEPARATE SYSTEM TERMINAL BLOCKS
(SUITABLE FOR ACROSS-THE-LINE START ONLY)
DEF or HACR
TYPE CB
Supply #2
Supply #1
#1 #2
#3
TB TB
TB SW
SW
LD04365
LD04364
DEF or CONVENTIONAL
TYPE CB
#1
TB
TB
#2
#3
SUPPLY #1
SUPPLY #2
SW
SW

FORM 201.18-W9
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YORK INTERNATIONAL
POWER WIRING POSSIBILITIES
MULTIPLE POINT NON-FUSED DISCONNECTS WITH SEPARATE SYSTEM CIRCUIT BREAKERS
SINGLE POINT WITH NON-FUSED DISCONNECT SWITCH & SYSTEM CIRCUIT BREAKERS
DEF or CONVENTIONAL
CB
Supply #2
Supply #1
CB
SW
SW
CB
CB
#1
#3
#2
LD04366
LD04367
DEF or CONVENTIONAL
TYPE CB
Unit Supply
#1
#3
#2
CB
SW
CB
CB

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POWER WIRING POSSIBILITIES
SINGLE POINT WITH SEPARATE SYSTEM CIRCUIT BREAKERS
MULTIPLE POINT WITH SEPARATE SYSTEM TERMINAL BLOCKS
(SUITABLE FOR ACROSS-THE-LINE START ONLY)
Unit Supply
DEF or CONVENTIONAL
TYPE CB
#1
#3
#2
CB TB
CB
CB
LD04368
Supply #2
#1
#3
#2
DEF or HACR
TYPE CB
Supply #1
TB
TB
TB TB
TB
LD04369

FORM 201.18-W9
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POWER WIRING POSSIBILITIES
CONTROL (120-1-50) SUPPLY VIA STANDARD CONTROL TRANSFORMER
CONTROL (120-1-50) SUPPLY WITHOUT STANDARD CONTROL TRANSFORMER
LD07043
LD07044

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ELEMENTARY DIAGRAM
FIG. 1 – ELEMENTARY DIAGRAM
LD04172A

FORM 201.18-W9
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ELEMENTARY DIAGRAM
FIG. 2 – ELEMENTARY DIAGRAM
LD04172B

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(PRESENT ON CERTAIN
MODEL CHILLERS)
(NOT PRESENT ON
3-COMPRESSOR CHILLERS)
(PRESENT ON CERTAIN
MODEL CHILLERS)
(NOT PRESENT ON
3-COMPRESSOR CHILLERS)
FIG. 3 – STANDARD COMPRESSOR POWER SUPPLY - ACROSS-THE-LINE START
STANDARD COMPRESSOR POWER SUPPLIES
ACROSS-THE-LINE START
LD04173

FORM 201.18-W9
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YORK INTERNATIONAL
(PRESENT ON CERTAIN
MODEL CHILLERS)
(NOT PRESENT ON
3-COMPRESSOR CHILLERS)
(PRESENT ON CERTAIN
MODEL CHILLERS)
(NOT PRESENT ON
3-COMPRESSOR CHILLERS)
FIG. 4 – STANDARD COMPRESSOR POWER SUPPLY - WYE-DELTA START
STANDARD COMPRESSOR POWER SUPPLIES
WYE-DELTA START
LD04174

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STANDARD COMPRESSOR POWER SUPPLIES
ACROSS-THE-LINE START
FIG. 5 – ELEMENTARY DIAGRAM

FORM 201.18-W9
YORK INTERNATIONAL YORK INTERNATIONAL 19A19
FORM 201.18-W9
SHLD
G
ISN RS485
PORT

19B
YORK INTERNATIONAL 20
FORM 201.18-W9
YORK INTERNATIONAL
CONNECTION DIAGRAM
FIG. 6 – CONNECTION DIAGRAM Box Information continued on page 22