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SECTION 4 - INSTALLATION
Power supply wiring
UNIT MOUNTED ELECTRONICS
INVERTER
INVERTER
1
2
Note 1: Dashed line represents customer wiring.
Minimum Circuit Ampacity (MCA),
Minimum/Maximum Fuse Size, and
Minimum/Maximum Circuit Breaker size
vary on chillers based upon model and
options ordered. Consult YorkWorks or
the chiller data plate for electrical data
on a specific chiller.
Figure 15 - Single point power wiring
46
Single point wiring
STANDARD
UNIT CONTROLS
CONTROL
TRANSFORMER
EVAPORATOR HEATER
LINE
REACTOR
TERMINAL BLOCK
(CIRCUIT BREAKER - OPT)
(NON-FUSED DISCONNECT
SWITCH - OPT)
SEE NOTE 1
FIELD PROVIDED
UNIT POWER
SUPPLY
FAN
CONTACTORS
WATER BOX
HEATER
KIT
SEE NOTE 1
PE/GND
L N
115V/60Hz
220V/50Hz
COMPRESSOR SYSTEM 1
Voltage utilization range
Rated voltage
200/60/3
230/60/3
380/60/3
400/60/3
460/60/3
575/60/3
400/50/3
Form 201.28-NM1.1
Issue date: 08/06/2021
COMPRESSOR SYSTEM 2
LD18588a
Utilization range
180–220
208–254
342–418
360–440
414–508
520–635
360–440
JOHNSON CONTROLS
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