York YCAS0693 Quick start guide

WIRING DIAGRAM
AIR-COOLED SCREW LIQUID CHILLERS
New Release Form 201.19-W4 (1104)
YCAS AIR-COOLED LIQUID CHILLERS
YCAS0693 THROUGH YCAS0953 (3 COMPRESSOR)
YCAS1063 THROUGH YCAS1263 (4 COMPRESSOR)
STYLE G (R22)
(50 Hz)
00258VIP

YORK INTERNATIONAL
2
FORM 201.19-W4 (1104)
TABLE OF CONTENTS
ELECTRICAL NOTES ....................................................................................................................6
ELECTRICAL DATA .......................................................................................................................8
ELEMENTARY WIRING DIAGRAM YCAS0693 - YCAS0953 (3 COMPRESSOR).....................12
ELEMENTARY WIRING DIAGRAM YCAS0693 - YCAS0953 (3 COMPRESSOR)
ACROSS-THE-LINE START.........................................................................................................13
ELEMENTARY WIRING DIAGRAM YCAS0693 - YCAS0953 (3 COMPRESSOR)
WYE DELTA START .....................................................................................................................14
ELEMENTARY WIRING DIAGRAM (YCAS0693 - YCAS0953) ACROSS-THE-LINE START
AND WYE-DELTA START ............................................................................................................15
ELEMENTARY WIRING DIAGRAM YCAS0693 - YCAS0953 (3 COMPRESSOR).....................16
CONNECTION WIRING DIAGRAM (YCAS0693 - YCAS0953) (3 COMPRESSOR)...................18
ELEMENTARY DIAGRAM DXST DIRECT DRIVE CONTROL CIRCUIT.....................................24
ELEMENTARY WIRING DIAGRAM (3 COMPRESSOR).............................................................25
CONNECTION DIAGRAM SYSTEM WIRING (3 COMPRESSOR)..............................................26
ELEMENTARY WIRING DIAGRAM YCAS1063 - YCAS1263 (4 COMPRESSOR).....................28
ELEMENTARY WIRING DIAGRAM (YCAS1063 - YCAS1263) ACROSS-THE-LINE START
AND WYE-DELTA START ............................................................................................................31
ELEMENTARY WIRING DIAGRAM YCAS1063 - YCAS1263 (4 COMPRESSOR).....................32
CONNECTION WIRING DIAGRAM YCAS1063 - YCAS1263 (4 COMPRESSOR) .....................34
ELEMENTARY DIAGRAM DXST DIRECT DRIVE CONTROL CIRCUIT.....................................42
CONNECTION DIAGRAM SYSTEM WIRING STANDARD AND REMOTE EVAP UNITS..........44
COMPRESSOR TERMINAL BOX SYSTEM 1 THROUGH 4.......................................................46

YORK INTERNATIONAL 3
FORM 201.19-W4 (1104)
LIST OF FIGURES
FIG. 1 – MULTIPLE POINT POWER SUPPLY CONNECTION.......................................................8
FIG. 2 – MULTIPLE POINT POWER SUPPLY CONNECTION WITH INDIVIDUAL SYSTEM........9
CIRCUIT BREAKERS .......................................................................................................9
FIG. 3 – OPTIONAL SINGLE-POINT POWER SUPPLY CONNECTION WITH INDIVIDUAL......10
SYSTEM CIRCUIT BREAKERS .....................................................................................10
FIG. 4 – WIRING DIAGRAM – DXST DIRECT DRIVE .................................................................12
FIG. 5 – WIRING DIAGRAM – ACROSS-THE-LINE START........................................................13
FIG. 6 – WIRING DIAGRAM – WYE DELTA START.....................................................................14
FIG. 7 – CONTROL POWER TRANSFORMER KIT.....................................................................15
FIG. 8 – ELEMENTARY WIRING DIAGRAM ................................................................................16
FIG. 9 – CONNECTION DIAGRAM 3 COMPRESSOR.................................................................18
FIG. 10 – CONNECTION DIAGRAM 3 COMPRESSOR...............................................................19
FIG. 11 – CONNECTION DIAGRAM 3 COMPRESSOR...............................................................20
FIG. 12 – CONNECTION DIAGRAM 3 COMPRESSOR...............................................................22
FIG. 13 – CONNECTION DIAGRAM 3 COMPRESSOR...............................................................23
FIG. 14 – ELEMENTARY DIAGRAM 3 COMPRESSOR DXST DIRECT DRIVE CONTROL
CIRCUIT........................................................................................................................24
FIG. 15 – ELEMENTARY DIAGRAM DXST DIRECT DRIVE - 3 COMPRESSOR........................25
FIG. 16 – CONNECTION DIAGRAM SYSTEM WIRING 3 COMPRESSOR ................................26
FIG. 17 – CONNECTION DIAGRAM STSTEM WIRING - 3 COMPRESSOR .............................27
FIG. 18 – ELEMENTARY WIRING DIAGRAM - 4 COMPRESSOR..............................................28
FIG. 19 – ELEMENTARY WIRING DIAGRAM - ACROSS-THE-LINE START .............................29
FIG. 20 – ELEMENTARY WIRING DIAGRAM - WYE DELTA.......................................................30
FIG. 21 – CONTROL POWER TRANSFORMER KIT...................................................................31
FIG. 22 – ELEMENTARY WIRING DIAGRAM ..............................................................................32
FIG. 23 – CONNECTION DIAGRAM 4 COMPRESSOR...............................................................34
FIG. 24 – CONNECTION DIAGRAM 4 COMPRESSOR...............................................................35
FIG. 25 – ELEMENTARY WIRING DIAGRAM ..............................................................................36
FIG. 26 – CONNECTION DIAGRAM 4 COMPRESSOR...............................................................38
FIG. 27 – CONNECTION DIAGRAM 4 COMPRESSOR...............................................................39
FIG. 28 – CONNECTION DIAGRAM 4 COMPRESSOR...............................................................40
FIG. 29 – CONNECTION DIAGRAM 4 COMPRESSOR...............................................................41
FIG. 30 – ELEMENTARY DIAGRAM - DXST DIRECT DRIVE CONTROL CIRCUIT....................42
FIG. 31 – ELEMENTARY DIAGRAM - DXST DIRECT DRIVE CONTROL CIRCUIT....................43
FIG. 32 – CONNECTION DIAGRAM SYSTEM WIRING ..............................................................44
FIG. 33 – CONNECTION DIAGRAM SYSTEM WIRING ..............................................................45
FIG. 34 – COMPRESSOR TERMINAL BOX, SYSTEM 1-4.........................................................46
PAGE

YORK INTERNATIONAL
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FORM 201.19-W4 (1104)
WARNING
HIGH VOLTAGE
is used in the operation of this equipment.
DEATH OR SERIOUS INJURY
may result if personnel fail to observe safety precautions.
Work on electronic equipment should not be undertaken unless the individual(s) have been trained
in the proper maintenance of 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 equipment with power off, take care to discharge every capacitor likely to hold dan-
gerous potential.
Be careful not to contact high voltage connections when installing or operating this equipment.
LOW VOLTAGE
DO NOT be misled by the term “low voltage”.
Voltages as low as 50 volts may cause death.
NOMENCLATURE
The Model Number denotes the following characteristics of the unit:
YORK Chiller
YC = YORK Chiller
Air-Cooled
Compressor Type
S = Screw
Nominal Capacity (tons)
Unit Designator
S = Standard Unit
E = High Efficiency
H = High Static Fans
Design Series
Type Start
Y = Star (WYE)-Delta
X = Across-the-Line
Voltage Code
17 = 200-3-60
28 = 230-3-60
40 = 380-3-60
46 = 460-3-60
58 = 575-3-60
Refrigerant
C = R-22
YC A S 0693 E C 17 Y G

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FORM 201.19-W4 (1104)
This page intentionally left blank.

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FORM 201.19-W4 (1104)
ELECTRICAL NOTES
NOTES & LEGEND
LEGEND
ACR-LINE ACROSS THE LINE START
C.B. CIRCUIT BREAKER
D.E. DUAL ELEMENT FUSE
DISC SW DISCONNECT SWITCH
FACT CB FACTORY-MOUNTED CIRCUIT BREAKER
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
Y-∆WYE-DELTA START
X-LRA ACROSS-THE-LINE INRUSH LOCKED ROTORAMPS
Y-LRA WYE-DELTA INRUSH LOCKED ROTORAMPS
VOLTAGE CODE
-50 = 380-3-50
NOTES
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. Aground 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.

YORK INTERNATIONAL 7
FORM 201.19-W4 (1104)
ELECTRICAL DATA
TABLE 2 – COMPRESSOR DATA
MAXIMUM kWAND AMPERAGE VALUES FOR DXST COMPRESSORS
COMPRESSOR MODELAND VOLTAGE CODE
DXS45LA– MOTOR CODEA DXS36LA – MOTOR CODEA DXS24LA– MOTOR CODE (TBD)
(B5N, B5E, B6N, B6E) (A5N,A5E, A6N,A6E) (C5N, C5E, C6N, C6E)
VOLTAGE CODE- -17 -28 -40 -46 -50 -58 -17 -28 -40 -46 -50 -58 -17 -28 -40 -46 -50 -56
MAX kW 150 150 150 150 113 150 150 150 150 150 113 150 105 105 105 105 80 105
MAXAMPS 492 428 259 214 193 171 492 428 259 214 193 171 338 294 178 147 135 118
CONTROL POWER SUPPLY (UNITS WITHOUT STANDARD CONTROL CIRCUIT TRANSFORMER)
NO. OF COMPRESSORS CONTROL POWER
SUPPLY MCA (MAX LOAD CURRENT) MAX DUAL ELEMENT FUSE SIZE
NON-FUSED
DISCONNECT
SWITCH SIZE
3 or 4 (Non-CE 50/60Hz) 115V-1Ø 30A 30A 30A
CONTROL POWER SUPPLY (UNITS WITH STANDARD CONTROL CIRCUIT TRANSFORMER)
NO. OF COMPRESSORS CONTROL POWER
SUPPLY MCA (MAX LOAD CURRENT)
RECOMMENDED
DUAL ELEMENT FUSE
SIZE
NON-FUSED
DISCONNECT
SWITCH SIZE
3 or 4 400V - 50 HZ 9.4A 15A — — —

YORK INTERNATIONAL
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FORM 201.19-W4 (1104)
ELECTRICAL DATA
MULTIPLE POINT POWER SUPPLY CONNECTION
Two field provided power supply circuits to the unit.
Field Power Wiring connections to factory provided,
Non-Fused Disconnect Switches (Opt), or Terminal
Blocks (Opt) in the Option Box.
ELECTRICAL SYSTEM #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
0693 380 362 400 400 450 (1) 2/0-(2)4/0 (2) 3/0-250 140 283 907 124 283 907 7 4.4 17.1
0773 380 436 600 450 500 (2) 1/0-300 (2) 250-500 140 283 907 183 283 907 7 4.4 17.1
0783 380 402 400 450 500 (1) 2/0-(2)4/0 (2) 3/0-250 124 283 907 168 283 907 8 4.4 17.1
0873 380 457 600 500 500 (2) 1/0-300 (2) 250-500 168 283 907 168 283 907 8 4.4 17.1
0953 380 494 600 500 600 (2) 1/0-300 (2) 250-500 183 283 907 183 283 907 8 4.4 17.1
1063 380 413 600 450 500 (2) 1/0-300 (2) 250-500 161 283 907 140 283 907 8 4.4 17.1
1093 380 436 600 450 500 (2) 1/0-300 (2) 250-500 183 283 907 140 283 907 7 4.4 17.1
1163 380 457 600 500 500 (2) 1/0-300 (2) 250-500 168 283 907 168 283 907 8 4.4 17.1
1263 380 494 600 500 600 (2) 1/0-300 (2) 250-500 183 283 907 183 283 907 8 4.4 17.1
MULTIPLE POINT POWER SUPPLY CONNECTION – 3 & 4 COMPRESSOR UNITS
(Two Field Provided Power Supply Circuits to the Chiller. Field Connections to Factory provided Terminal Block (Std)
or Disconnects (Opt) in the Options Panel or Individual System Circuit Breakers (opt10) in each of the two Motor Control Centers.)
Wire Range7
Over-current
FIG. 1 – MULTIPLE POINT POWER SUPPLY CONNECTION
See page 54 for notes.
TB
or
DS
TB
or
DS
TB1TB2
TB3TB4
Field Supply #2
Field Supply #1
Suitable for:
Across the Line Start
LD05558 NOTE 2
Suitable for:
Across-The-Line-Start
See page 6 for Electrical Data footnotes.

YORK INTERNATIONAL 9
FORM 201.19-W4 (1104)
ELECTRICAL DATA (CONT'D)
MULTIPLE POINT POWER SUPPLY CONNECTION
WITH OPTIONAL INDIVIDUAL SYSTEM CIRCUIT
BREAKERS
Two field provided power supply circuits to the unit with
individual branch circuit protection. Field Power Wiring
connectionstofactory provided,Non-FusedDisconnect
Switches (Opt), or Terminal Blocks (Opt) in the Option
Box. Factory connections to each of the Circuit Break-
ers in each of the two power panels.
ELECTRICAL SYSTEM #2 FIELD SUPPLIED WIRING
Chiller Field Provided Power Supply Factory Provided (Lugs) Compressor #2 Compressor #4 Fan11, 12
Model MRA1Data
YCAS Volts (MCA) Min NF Protection13 *Standard *Optional NF RLA Y-∆LRA X-LRA RLA Y-∆LRA X-LRA Qty FLA (ea) LRA (ea)
DiscSW2, 9 Min.3, 5 Max.4, 6 Terminal block Disc. Switch
0693 380 189 200 200 300 #2-4/0 # 4-300 140 283 907 — — — 3 4.4 17.1
0773 380 189 200 200 300 #2-4/0 # 4-300 140 283 907 — — — 3 4.4 17.1
0783 380 173 175 175 250 #2-4/0 # 4-300 124 283 907 — — — 4 4.4 17.1
0873 380 228 250 250 350 1/0-300 # 6-350 168 283 907 — — — 4 4.4 17.1
0953 380 247 250 250 400 1/0-300 # 6-350 183 283 907 — — — 4 4.4 17.1
1063 380 413 600 450 500 (2) 1/0-300 (2) 250-500 161 283 907 140 283 907 8 4.4 17.1
1093 380 436 600 450 500 (2) 1/0-300 (2) 250-500 183 283 907 140 283 907 7 4.4 17.1
1163 380 457 600 500 500 (2) 1/0-300 (2) 250-500 168 283 907 168 283 907 8 4.4 17.1
1263 380 494 600 500 600 (2) 1/0-300 (2) 250-500 183 283 907 183 283 907 8 4.4 17.1
Over-current Wire Range
FIG. 2 – MULTIPLE POINT POWER SUPPLY CONNECTION WITH INDIVIDUAL SYSTEM
CIRCUIT BREAKERS
See page 6 for notes. LD05559 NOTE 2
Control Power Wiring as shown on
the 2-Compressor Diagrams
Suitable for:
Y - ∆ Start and Across the Line Start
CE Mark
Field Supply #1
CB1CB2
CB3CB4TB
or
DS
TB
or
DS
Field Supply #2
Suitable for:
Y - ∆Start and
Across the Line Star
t
CE Mark

YORK INTERNATIONAL
10
FORM 201.19-W4 (1104)
ELECTRICAL DATA (CONT'D)
OPTIONAL SINGLE POINT POWER SUPPLY
CONNECTION AND INDIVIDUAL SYSTEM CIRCUIT
BREAKERS
One field provided power supply circuits to the unit with
individual branch circuit protection. Field Power Wiring
connectionstofactory provided,Non-FusedDisconnect
Switches (Opt), or Terminal Blocks (Opt) in the Option
Box.
Suitable for:
Y - ∆ Start and
Across-The-Line-Start
OPTIONAL SINGLE-POINT POWER SUPPLY CONNECTION WITH INDIVIDUAL SYSTEM
CIRCUIT BREAKERS – 3 & 4 COMPRESSOR UNITS
(One Field Provided Power Supply Circuit to the chiller. Field connections to Power Terminal Block (standard) or Non-Fused Disconnect (option)
in ‘Option Panel’. Individual System Circuit Breakers in each Motor Control Center.)
See page 6 for Electrical Data footnotes.
FIELD SUPPLIED WIRING
Chiller Field Provided Power Supply Factory Provided (Lugs) Wire Range7
Model
YCAS Volts MRA1 Min NF Over-Current Protection13 Terminal Block NF Disc. Switch
(MCA) Disc SW2 Min.3, 5 Max.4, 6 (Lugs) Wire Range (Lugs) Wire Range
0693 380 551 600 600 600 (2)2/0-500 (2)250-500
0773 380 625 800 700 700 (2)2/0-500 (3)2/0-400
0783 380 575 600 600 600 (2)2/0-500 (2)250-500
0873 380 685 800 700 700 (3)1/0-300 (3)2/0-400
0953 380 741 800 800 800 (3)1/0-300 (3)2/0-400
1063 380 826 1000 800 800 (3)2/0-500 (4)4/0-500
1093 380 872 1000 1000 1000 (3)2/0-500 (4)4/0-500
1163 380 914 1000 1000 1000 (3)2/0-500 (4)4/0-500
1263 380 989 1000 1000 1000 (3)2/0-500 (4)4/0-500
FIG. 3 – OPTIONAL SINGLE-POINT POWER SUPPLY CONNECTION WITH INDIVIDUAL
SYSTEM CIRCUIT BREAKERS
LD05557
NOTES:
1. – – – – – – – Dashed Line indicates Field Provided Wiring.
2. The above recommendations are based on the National Electrical Code and using copper conductors only.
Field wiring must also comply with local codes.
See notes below.
CB
3
CB
4
CB
1
CB
2
TB
or
DS
F
ield Supply
Suitable for:
Y - D Start and
Across the Line Start
See Note 3
See Note 3 on
page 6.

YORK INTERNATIONAL 11
FORM 201.19-W4 (1104)
ELECTRICAL DATA (CONT'D)
ELECTRICALSYSTEM #1 FIELD SUPPLIED WIRING
Compressor #1 Data Compressor #3 Data Fan Data11, 12
RLA Y-∆LRA X-LRA RLA Y-∆LRA X-LRA Qty FLA (ea) LRA(ea)
140 283 907 124 283 907 7 4.4 17.1
140 283 907 183 283 907 7 4.4 17.1
124 283 907 168 283 907 8 4.4 17.1
168 283 907 168 283 907 8 4.4 17.1
183 283 907 183 283 907 8 4.4 17.1
161 283 907 140 283 907 8 4.4 17.1
183 283 907 140 283 907 7 4.4 17.1
168 283 907 168 283 907 8 4.4 17.1
183 283 907 183 283 907 8 4.4 17.1
ELECTRICALSYSTEM #2 FIELD SUPPLIED WIRING
Compressor #2 Data Compressor #4 Data Fan Data11, 12
RLA Y-∆LRA X-LRA RLA Y-∆LRA X-LRA Qty FLA (ea) LRA (ea)
140 283 907 — — — 3 4.4 17.1
140 283 907 — — — 3 4.4 17.1
124 283 907 — — — 4 4.4 17.1
168 283 907 — — — 4 4.4 17.1
183 283 907 — — — 4 4.4 17.1
161 283 907 140 283 907 8 4.4 17.1
183 283 907 140 283 907 7 4.4 17.1
168 283 907 168 283 907 8 4.4 17.1
183 283 907 183 283 907 8 4.4 17.1

YORK INTERNATIONAL
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FORM 201.19-W4 (1104)
ELEMENTARY WIRING DIAGRAM
YCAS0693 - YCAS0953 (3 COMPRESSOR)
FIG. 4 –WIRING DIAGRAM – DXST DIRECT DRIVE
LD09350
035-15937-103
Rev - A

YORK INTERNATIONAL 13
FORM 201.19-W4 (1104)
FIG. 5 –WIRING DIAGRAM – ACROSS-THE-LINE START
ELEMENTARY WIRING DIAGRAM
YCAS0693 - YCAS0953 (3 COMPRESSOR)
ACROSS-THE-LINE START
LD09352
035-15937-103
Rev - A

YORK INTERNATIONAL
14
FORM 201.19-W4 (1104)
FIG. 6 –WIRING DIAGRAM – WYE DELTA START
ELEMENTARY WIRING DIAGRAM
YCAS0693 - YCAS0953 (3 COMPRESSOR)
WYE DELTA START
035-15937-103
Rev - A
LD09353

YORK INTERNATIONAL 15
FORM 201.19-W4 (1104)
NOTES:
1. Field wiring to be in accordance with the current edition of
the National Electrical Code as well as all other applicable
codes and specifications.
2. Contacts must be suitable for switching 24VDC, (Gold
contacts recommend). Wiring shall not be run in the same
conduit with any line voltage wiring.
3. To cycle the unit on and off automatically with contact
shown, install a cycling device in series with the flow
switch (FLSW). See note 2 for contact rating and wiring
specifications.
4. To stop unit (Emergency Stop) with contacts other than
those shown, install the stop contact between terminals 5
and 1. If a stop device is not installed, a jumper must be
connected between terminals 5 and 1. Device must have
a minimum contact rating of 100A at 115 volts A.C.
5. Alarm contacts are for annunciating alarm/unit malfunc-
tion. Contacts are rated at 115V, 100VA, load only, and
must be suppressed at load by user.
6. See Installation, Operation andMaintenance Manual when
optional equipment is used.
7. Jumper must be installed for three compressor operation.
LEGEND
Transient Voltage Suppression
Terminal Block for Customer Connections
Terminal Block for Customer Low Voltage
(Class 2) Connections. See Note 2
Terminal Block for YORK Connections Only
Wiring and Components by YORK
Optional Equipment
Wiring and/or Components by Others
T S
ELEMENTARY WIRING DIAGRAM (YCAS0693 - YCAS0953)
ACROSS-THE-LINE START
AND
WYE-DELTA START
LD09351
FIG. 7 –CONTROL POWER TRANSFORMER KIT
035-15937-103
Rev - A

YORK INTERNATIONAL
16
FORM 201.19-W4 (1104)
FIG. 8 –ELEMENTARY WIRING DIAGRAM LD09354
ELEMENTARY WIRING DIAGRAM
YCAS0693 - YCAS0953 (3 COMPRESSOR)

YORK INTERNATIONAL 17
FORM 201.19-W4 (1104)
LD09355
UNIT CONTROL MIN MAX DUAL NON-FUSED
VOLTAGE POWER CIRCUIT ELEMENT DISC. SUPPLY AMP. FUSE SIZE SWITCH SIZE ALL MODELS 115-1-50/60 20A 20A250V 30A240V W/O TRANS. MODELS -17 200-1-60 15A 15A250V 30A240V WITH -28 230-1-60 15A 15A250V 30A240V TRANS. -46 400-1-60 8A 8A 600V 30A480V * -58 575-1-60 8A 8A600V 30A600V
* All primary and secondary wiring between transformer and control panel included.
CONTROL POWER SUPPLY
ON PAGE 59 ON PAGE 59
CAUTION:
No Controls (relays, etc.) should be mounted in the Smart Panel
enclosure or connected to power supplies in the control panel. Ad-
ditionally, controlwiring not connectedto the Smart Panelshould not
be run through the cabinet. This could result in nuisance faults.
CAUTION:
Any inductive devices (relays) wired in series with the flow switch
for start/stop, into the Alarm circuitry, or pilot relays for pump
starters wired through motor contactor auxiliary contacts must be
suppressed with YORK P/N 031-00808-000 suppressor across the
relay/contactor coil.
Any contacts connected to flow switch inputs or BAS inputs on
terminals 13 - 19 or TB3, or any other terminals, must be sup-
pressed with a YORK P/N 031-00808-000 suppressor across the
relay/contactor coil.
CAUTION:
Control wiring connected to the control panel should never be run in
the same conduit with power wiring.

YORK INTERNATIONAL
18
FORM 201.19-W4 (1104)
FIG. 9 –CONNECTION DIAGRAM 3 COMPRESSOR
LD09362
CONNECTION WIRING DIAGRAM
(YCAS0693 - YCAS0953) (3 COMPRESSOR)

YORK INTERNATIONAL 19
FORM 201.19-W4 (1104)
FIG. 10 –CONNECTION DIAGRAM 3 COMPRESSOR
LD09358
Power Panel 035-19205-104
Rev - A

YORK INTERNATIONAL
20
FORM 201.19-W4 (1104)
FIG. 11 –CONNECTION DIAGRAM 3 COMPRESSOR LD09356
CONNECTION WIRING DIAGRAM (CONT'D)
Power Panel
035-19205-104
Rev - A
035-19205-104
Rev - A