York MILLENNIUM YCAS0373, Wiring Diagram

YORK INTERNATIONAL

8

ELECTRICAL DATA (Continued)

Option not available for units with CE Mark.

NOTE:

Model Numbers 0373SB, 0403SB, 0453SB and 0530SB have three (3) fans per circuit; six (6) total.

Model Numbers 0543SB, 0573SB and 0623SB have four (4) fans per circuit; eight (8) total.

Model Number 0653SB has five (5) fans per circuit; ten (10) total.

NOTES

1. MRC is Maximum Running Current, the maximum continuous current at any operating point in the rating range. Also referred to as MCA,

or Minimum Current Ampacity to be furnished by the installer.

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 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. Two-Compressor machines with single-point power connection, and equipped with Star-Delta Compressor motor starters, must also

include Factory-provided circuit breakers in each motor control center. 3 & 4 Compressor machine equipped with Star-Delta compressor

motor starter, 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. High Static Fans are 3.5 kW each.
12. FLA for “Low Noise Fan” motors is 4.1 A.

OPTIONAL  380V / 50HZ / 3Ø  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.

FIELD SUPPLIED WIRING

SYSTEM #1

SYSTEM #2

MODEL

FIELD PROVIDED POWER SUPPLY

FACTORY PROVIDED (LUGS) WIRE RANGE

COMPRESSOR

FANS

COMPRESSOR

FANS

YCAS

MCA

1

MIN NF

OVRCRNT. PRO.

TERMINAL BLOCK

NF SERVICE DISC. SWITCH

DATA

DATA

11, 12

DATA

DATA

11,12

DISC SW

2

MIN.

3

MAX.

4

(LUGS) WIRE RANGE

7

RATING

2

(LUGS) WIRE RANGE

7

RLA

X-LRA FLA (EA)

RLA

X-LRA FLA (EA)

0373SB

269

400

300

350

# 1 - 500

400

(2) 3/0-250

108

761

4.4

108

761

4.4

0403SB

291

400

350

400

(2) # 2 - 300

400

(2) 3/0-250

118

761

4.4

118

761

4.4

0453SB

340

400

400

450

(2) # 2 - 300

400

(2) 3/0-250

140

979

4.4

140

979

4.4

0503SB

389

600

450

500

(2) # 1 - 500

630

(3) 2/0-400

161

979

4.4

161

979

4.4

0543SB

352

400

400

450

(2) # 2 - 300

400

(2) 3/0-250

141

979

4.4

141

979

4.4

0573SB

413

600

500

500

(2) # 1 - 500

630

(3) 2/0-400

168

979

4.4

168

979

4.4

0623SB

447

600

500

600

(2) # 1 - 500

630

(3) 2/0-400

183

979

4.4

183

979

4.4

0653SB

422

600

500

500

(2) # 1 - 500

630

(3) 2/0-400

168

979

4.4

168

979

4.4