22
Data book
4
Wiring design
4-1.General
• All field wiring insulation rating must comply with NEC and local codes.
• Do not connect 208/230 V power to the terminal blocks for control cables (U1, U2, U3, U4); otherwise, the unit may
break down.
• Be sure that electric wiring does not come into contact with high-temperature parts of piping; otherwise, the
coating of cables may melt and cause an accident.
• After connecting wires to the terminal block, take off the traps and fix the wires with cord clamps.
• Do not conduct power to indoor units until vacuuming of the refrigerant pipes has finished.
• For the wiring of power to indoor units and that between indoor and outdoor units, follow the instructions in the
installation manual of each indoor unit.
• Prepare an exclusive power supply for the air conditioner.
4-2.Outdoor unit power supply
Outdoor unit data
Model name
MCY-
Capacity
type
Power supply
Voltage Range
Compressor
(kW)
Fan Motor
(kW)
MCA
(A)
MOCP
(A)
Recommended
breaker size
Phase and
frequency
Nominal
Voltage
Min.
(V)
Max.
(V)
MAP0367HS-UL
36
1Ph 60 Hz
208/230 V
187
253
3.75
0.10 x 2
36.3
60
40
MAP0487HS-UL
48
1Ph 60 Hz
208/230 V
187
253
3.75
0.10 x 2
36.3
60
40
MAP0607HS-UL
60
1Ph 60 Hz
208/230 V
187
253
3.75
0.10 x 2
36.3
60
40
Circuit breaker
Disconnect per NEC
and local codes.
E16-3P1_databook.book Page 22 Tuesday, December 20, 2016 3:02 PM