York Millennium YDAS 410 Installation Operation & Maintenance page 17

Air cooled screw liquid chillers air cooled screw hermetic
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STANDARD COMPRESSOR POWER SUPPLIES WIRING
UNIT PANEL (FOLLOWER)
SYS.4
SYS.3
TERMINALS
TERMINALS
L
2
G
2L1
2L2
2L3
1L1 1L2 1L3
G
G
230-1-50
CONTROL
POWER
SUPPLY
BY OTHERS
SEE NOTE 7
CONTROL
UNIT
VOLTAGE
Standard
Models w/o
Transformers
SYS 4
POWER
SUPPLY
SYS 3
POWER
SUPPLY
MIN
MAX DUAL NON-FUSED
POWER
CIRCUIT
ELEMENT
SUPPLY
AMPACITY
FUSE SIZE
115-1-60
20A
20A
See power wiring schematics on pages 42 - 65.
TWISTED PAIR COMMUNICATION LINE
(FACTORY INSTALLED, FIELD CONNECTED)
UNIT PANEL (MASTER)
SYS.2
SYS.1
TERMINALS
TERMINALS
L
2
G
2L1
2L2
1L1 1L2 1L3
2L3
G
G
230-1-50
CONTROL
POWER
SUPPLY
SEE NOTE 8
(TYP)
SEE NOTE 7
DISC. SW.
SIZE
30A
SYS 1
POWER
SUPPLY
SYS 2
POWER
SUPPLY
LD01173D

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Millennium ydas 490

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