Optional Single Point Power Supply Connection And Individual System Circuit Breakers; Fig. 19 - Optional Single-Point Power Supply Connection With Individual System Circuit Breakers - York YCAS Series Installation Operation & Maintenance

Technical Data Technical Data
OPTIONAL SINGLE POINT POWER SUPPLY
CONNECTION AND INDIVIDUAL SYSTEM CIRCUIT
BREAKERS
CB
1
CB
3
See notes below.
FIG. 19 – OPTIONAL SINGLE-POINT POWER SUPPLY CONNECTION WITH INDIVIDUAL
SYSTEM CIR CUIT BREAK ERS
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.
WITH INDIVIDUAL SYSTEM CIRCUIT BREAKERS – 3 AND 4 COMPRESSOR UNITS (SEE FIG. 19)
One Field Provided Power Supply Circuit to the chiller. Field connections to Factory Provided Terminal Block (standard) or Non-Fused Disconnect (option)
CHILLER
FIELD PROVIDED POWER SUPPLY
MODEL
MIN NF
YCAS
MRA 1
DISC SW
482 600
0685EB
517 600
0775EB
560 600
0835EB
637 800
0905EB
625 800
0965EB
669 800
1065EB
745 800
1135EB
822 1000
1215EB
See page 54 for Electrical Data footnotes.
52
ELECTRICAL DATA
CB
2
CB
4
OPTIONAL SINGLE POINT POWER SUPPLY CONNECTION
in the Options Panel. Individual System Circuit Breakers in each Motor Control Center.
OVER-CURRENT PROTECTION
MIN. MAX.
2,9 3, 5 4, 6
600 600
600 600
700 700
700 700
800 800
700 700
800 800
1000 1000
Suitable for:
Y - ∆ Start and
Across-The-Line-Start
One fi eld provided power sup ply cir cuits to the unit with
in di vid u al branch cir cuit protection. Field Power Wiring con-
nections to fac to ry provided, Non-Fused Dis con nect Switches
(Opt), or Ter mi nal Blocks (Opt) in the Option Box.
Suitable for:
Y - D Start and
Across the Line Start
TB
or
Field Supply
DS
LD05554
FIELD-SUPPLIED WIRING
FACTORY PROVIDED (LUGS) WIRE RANGE
STANDARD
TERMINAL BLOCK
(2) 2/0 - 500
(2) 2/0 - 500
(2) 2/0 - 500
(3) 1/0 - 300
(3) 1/0 - 300
(3) 2/0 - 500
(3) 2/0 - 500
(3) 2/0 - 500
FORM 201.19-NM8 (804)
See Note 3
See Note 3 on
page 54.
7
OPTIONAL NF
DISC. SWITCH
(2) 250 - 500
(2) 250 - 500
(2) 250 - 500
(3) 2/0 - 400
(3) 2/0 - 400
(3) 2/0 - 400
(4) 4/0 - 500
(4) 4/0 - 500
YORK INTERNATIONAL