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 equipment with power off, take special care to discharge every capacitor likely to
hold dangerous potential.
Be careful not to contact high voltage connections when installing or operating this equipment.
LOW V OL T A GE
DO NOT be misled by the term “low voltage”. Voltages as low as 50 volts
may cause death.
2
YORK INTERNATIONAL
Page 3
NOMENCLATURE
The Model Number denotes the following characteristics of the unit:
NOTE: Wye-Delta Compressor Start not available with this option.
NOTES (pages 2 - 7)
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 #2 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 recommendation 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 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 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 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 Electric 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.
10. Units equipped with Star-Delta compressor motor start must also include Factory provided circuit breakers in each motor control center.
11. The wiring recommendations are based on the National Electrical Code using copper connectors only. Field wiring must also comply with
local codes.
8
YORK INTERNATIONAL
Page 9
FORM 201.18-W1
OPTIONAL SINGLE POINT POWER SUPPLY CONNECTION WITH FIELD SUPPLIED CIRCUIT PROTECTION
(One Field Provided Power Supply Circuit to the chiller. Field Connection to Power Terminal Block or Disconnect Switch in the Option Panel.
No internal Branch Circuit Protection per Motor Control Center.)
MODEL
YCAS
0130EC
0140EC
0150EC
0160EC
0170EC
0180EC
0200EC
0210EC
0230EC
FIELD PROVIDED POWER SUPPLYFACTORY PROVIDED (LUGS) WIRE RANGECOMPRESSORFANSCOMPRESSOR FANS
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. Numbers along the right side of a diagram are line
identification numbers. The numbers at each line
indicate the line number location of relay contacts.
An unlined contact location signifies a normally closed
contact. Numbers adjacent to circuit lines are the
circuit identification numbers.
3. Any customer supplied contacts must be suitable
for switching 24VDC. (Gold contacts recommended.) Control Wiring must not be run in the same
conduit with any line voltage wiring.
4. To cycle unit on and off automatically with contact
shown, install a cycling device in series with the
flow switch (FSLW). See Note 3 for contact rating
and wiring specifications. Also refer to cautions on
the following page.
5. To stop unit (Emergency Stop) with contacts other
than those shown, install the stop contact between
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 100VA
at 115 volts A.C.
6. Alarm contacts are for annunciating alarm/unit malfunction. Contacts are rated at 115V, 100VA, resistive load only, and must be suppressed at load by
user.
7. See Installation, Operation and Maintenance Manual
when optional equipment is used.
8. Control panel to be securely connected to earth
ground.
9. Us 2KVA transformer in optional transformer kit unless there are optional oil separator sump heaters
which necessitates using a 3KVA transformer.
WIRING DIAGRAM
LD03226
LEGEND
T S
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
CAUTION:
No Controls (relays, etc.) should
be mounted in the Smart Panel
enclosure or connected to power
supplies in the control panel.
Additionally, control wiring not
connected to the Smart Panel
should 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 suppressed with a YORK P/N 03100808-000 suppressor across
the relay/contactor coil.
YORK INTERNATIONAL
CAUTION:
Control wiring connected to the
control panel should never be
run in the same conduit with
power wiring.
CONTROL POWER SUPPLY
UNIT
VOLTAGE
ALL MODELS
W/O TRANS.
MODELS-1 7200-1-6015A15A 250V30A 240V
WITH-2 8230-1-6015A15A 250V30A 240V
TRANS.- 46400-1-608A8A 600V30A 480V
*-58575-1-608A8A 600V30A 600V
* All primary and secondary wiring between transformer and control panel included.
CONTROLMINMAX DUAL NON-FUSED
POWERCIRCUITELEMENTDISC.
SUPPLYAMP.FUSE SIZESWITCH SIZE
115-1-50/6020A20A 250V30A 240V
13
Page 14
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. Numbers along the right side of a diagram are line
identification numbers. The numbers at each line
indicate the line number location of relay contacts.
An unlined contact location signifies a normally closed
contact. Numbers adjacent to circuit lines are the
circuit identification numbers.
3. Any customer supplied contacts must be suitable
for switching 24VDC. (Gold contacts recommended.) Control Wiring must not be run in the same
conduit with any line voltage wiring.
4. To cycle unit on and off automatically with contact
shown, install a cycling device in series with the
flow switch (FSLW). See Note 3 for contact rating
and wiring specifications. Also refer to cautions on
the following page.
5. To stop unit (Emergency Stop) with contacts other
than those shown, install the stop contact between
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 100VA
at 115 volts A.C.
6. Alarm contacts are for annunciating alarm/unit malfunction. Contacts are rated at 115V, 100VA, resistive load only, and must be suppressed at load by
user.
7. See Installation, Operation and Maintenance Manual
when optional equipment is used.
8. Control panel to be securely connected to earth
ground.
9. Us 2KVA transformer in optional transformer kit unless there are optional oil separator sump heaters
which necessitates using a 3KVA transformer.
WIRING DIAGRAM
WYE-DELTA START
LD03226
LEGEND
T S
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
FIG. 1 – ELEMENTAR Y DIAGRAM – WYE-DEL TA ST AR T
14
LD03227
YORK INTERNATIONAL
Page 15
WIRING DIAGRAM
WYE-DELTA START
FORM 201.18-W1
YORK INTERNATIONAL
LD03229
15
Page 16
ELEMENTARY DIAGRAM
FIG. 1 – CONTINUED
16
YORK INTERNATIONAL
Page 17
ELEMENTARY DIAGRAM
FORM 201.18-W1
LD03279
CAUTION:
No Controls (relays, etc.) should
be mounted in the Smart Panel
enclosure or connected to power
supplies in the control panel.
Additionally, control wiring not
connected to the Smart Panel
should 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 suppressed with a YORK P/N 03100808-000 suppressor across
the relay/contactor coil.
YORK INTERNATIONAL
CAUTION:
Control wiring connected to the
control panel should never be
run in the same conduit with
power wiring.
CONTROL POWER SUPPLY
UNIT
VOLTAGE
ALL MODELS
W/O TRANS.
MODELS-1 7200-1-6015A15A 250V30A 240V
WITH-2 8230-1-6015A15A 250V30A 240V
TRANS.- 46400-1-608A8A 600V30A 480V
*-58575-1-608A8A 600V30A 600V
* All primary and secondary wiring between transformer and control panel included.
CONTROLMINMAX DUAL NON-FUSED
POWERCIRCUITELEMENTDISC.
SUPPLYAMP.FUSE SIZESWITCH SIZE
115-1-50/6020A20A 250V30A 240V
17
Page 18
18
YORK INTERNATIONAL
Page 19
FORM 201.18-W1
YORK INTERNATIONAL
LD03280
19
Page 20
LEGEND
20
LD03281
YORK INTERNATIONAL
Page 21
LD03282
FORM 201.18-W1
LD03283
YORK INTERNATIONAL
LD03284
21
Page 22
CONNECTION DIAGRAM (SYSTEM WIRING)
LD03230
22
LD03231
LD03232
YORK INTERNATIONAL
Page 23
COMPRESSOR TERMINAL BOX
FORM 201.18-W1
YORK INTERNATIONAL
LD03233
23
Page 24
MULTI-POINT POWER SUPPLY WIRING STANDARD UNIT
LD03254
SINGLE POINT POWER SUPPLY WIRING WITH CIRCUIT BREAKERS
24
LD03255
YORK INTERNATIONAL
Page 25
FORM 201.18-W1
SINGLE POINT POWER WIRING WITH FIELD SUPPLIED CIRCUIT PROTECTION
LD03256
SINGLE POINT POWER WIRING WITH CIRCUIT BREAKERS
YORK INTERNATIONAL
LD03257
25
Page 26
ELECTRICAL POWER WIRING OPTIONS: TERMINAL BLOCKS
LD03258
ELECTRICAL POWER WIRING OPTIONS: NON FUSED DISCONNECT SWITCH
26
LD03259
ELECTRICAL POWER WIRING OPTIONS: TERMINAL BLOCKS