SECTION 4 - INSTALLATION
JOHNSON CONTROLS
47
Form 201.28-NM1.1
Issue date: 08/06/2021
4
Dual point wiring
Figure 16 -
Dual point power wiring
LD18589a
115V/60Hz
220V/50Hz
L N
PE/GND
FAN
CONTACTORS
TERMINAL BLOCK
CIRCUIT BREAKER - OPT
NON-FUSED DISCONNECT SW. - OPT
SYSTEM 2
LINE
REACTOR
POWER
ASSEMBLY
SYSTEM 2
UNIT CONTROLS
EVAPORATOR AND COMPRESSOR
HEATERS
VSD COOLING PUMP
AND FAN
FAN
CONTACTORS
STANDARD
CONTROL
TRANSFORMER
LINE
REACTOR
TERMINAL BLOCK
CIRCUIT BREAKER - OPT
NON-FUSED DISCONNECT SW. - OPT
SYSTEM 1
POWER
ASSEMBLY
SYSTEM 1
COMPRESSOR SYSTEM 1
COMPRESSOR SYSTEM 2
L1 L2 L3
PE/GND
PE/GND
L1 L2 L3
380~415-3-50
460-3-60
380~415-3-50
460-3-60
SEE NOTE 1
SEE NOTE 1
SEE NOTE 1
FIELD PROVIDED
UNIT POWER
SUPPLY
FIELD PROVIDED
UNIT POWER
SUPPLY
UNIT MOUNTED ELECTRONICS
WATER BOX
HEATER
KIT
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.
Note 1:
Dashed line represents customer wiring.
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
