Atom B Series VRF 50/60Hz
21
Part 2
Outdoor Unit Engineering Data
Figure 2-5.2: 36/42/48/56 model wiring diagram
Component code Description Component code Description
BR Rectifier bridge stacking RL1 Relay
CH1-CH7 Magnetic ring STF1 Four-way valve
COMP. Compressor T3 Outdoor heat exchanger temperature sensor
CT1 AC current transformer T4 Outdoor ambient temperature sensor
D501-D503 Fast-recovery diode T5 Discharge temperature sensor
EEV Electronic expansion valve TL Refrigerant radiator temperature sensor
FAN DC fan NF Filter assembly
FUSE1-FUSE2 Fuse AP1 Main control board
HEAT1 Crankcase heater AP2 Spot check board
HS Radiator XT1 Power supply terminal
H-PRO High pressure switch XP Connecting terminal
L-PRO Low pressure switch Q501-Q503 IGBT
L501-L503 PFC inductance IPM Inverter module
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