Midea MCA3U-18HRFNX-QRD0W - Electrical Characteristics; Electrical Wiring Diagrams

 IDU-Compact Cassette 20 
9. Electrical Characteristics
Type 18000 Btu/h
Phase 1-phase
Frequency and Voltage 220-240V, 50Hz
Circuit Breaker/ Fuse (A) 25/20
Indoor Unit Power Wiring (mm
2
)
Outdoor Unit Power Wiring (mm
2
) 3×2.5
Indoor/Outdoor Connecting
Wiring (mm
2
)
Ground Wiring 2.5
Strong Electric Signal 4×1.0(4×2.5 with auxiliary electric heater)
Weak Electric Signal
10. Electrical Wiring Diagrams
IDU Model IDU Wiring Diagram Field Wiring Diagram
MCA3U-18HRFNX-QRD0W 16022500004023
/
Abbreviation Paraphrase
Y/G Yellow-Green Conductor
CAP1 Indoor Fan Capacitor
FAN1 Indoor Fan
PUMP PUMP
L LIVE
N NEUTRAL
TO CCM Comm.Bus Central Controller
T1 Indoor Room Temperature
T2 Coil Temperature of Indoor Heat Exchanger
P1 Super High Speed
P2 High Speed