JOHNSON CONTROLS
46
SECTION 4 - INSTALLATION
Form 201.28-NM1.1
Issue date: 08/06/2021
Figure 15 -
Single point power 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.
Voltage utilization range
Rated voltage
Utilization range
200/60/3
180–220
230/60/3
208–254
380/60/3
342–418
400/60/3
360–440
460/60/3
414–508
575/60/3
520–635
400/50/3
360–440
Power supply wiring
Single point wiring
LD18588a
UNIT MOUNTED ELECTRONICS
INVERTER
1
INVERTER
2
LINE
REACTOR
UNIT CONTROLS
EVAPORATOR HEATER
FAN
CONTACTORS
TERMINAL BLOCK
(CIRCUIT BREAKER - OPT)
(NON-FUSED DISCONNECT
SWITCH - OPT)
STANDARD
CONTROL
TRANSFORMER
FIELD PROVIDED
UNIT POWER
SUPPLY
GN
D
SEE NOTE 1
WATER BOX
HEATER
KIT
115V/60Hz
220V/50Hz
L N
PE/GND
SEE NOTE 1
COMPRESSOR SYSTEM 1
COMPRESSOR SYSTEM 2
Note 1:
Dashed line represents customer wiring.