Atom B Series VRF 50/60Hz
20
Midea Atom B Series Engineering Data Book
5 Wiring Diagrams
Figure 2-5.1: 28 model wiring diagram
Component code Description Component code Description
CH1-CH4 Magnetic ring STF1 Four-way valve
COMP Compressor TL Refrigerant radiator temperature sensor
EEV1 Electronic expansion valve XT1 Power supply terminal
FAN DC fan T3 Outdoor heat exchanger temperature sensor
HEAT1 Crankcase heater T4 Outdoor ambient temperature sensor
H-PRO High pressure on/off switch(default) T5 Outdoor discharge temperature sensor
L-PRO Low pressure on/off switch
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