York YCAS0685 Manual page 10

OPTIONAL SINGLE POINT POWER SUPPLY
CONNECTION AND INDIVIDUAL SYSTEM CIRCUIT
BREAKERS
CB
1
CB
3
See notes below.
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
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
0685EB 482 600
0775EB 517 600
0835EB 560 600
0905EB 637 800
0965EB 625 800
1065EB 669 800
1135EB 745 800
1215EB 822 1000
10
ELECTRICAL DATA (CONT'D)
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
connections 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 - ∆ Start and
Across the Line Start
Control Panel Wiring As Shown
The Two Compressor Diagram
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-W8 (1104)
See Note 3
See Note 3 on
page 6.
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