Midea MCA3U-18HRFN1-M(C) User Manual

84
PCB board of MOX430-17HFN1-MT0W
No.
Name
CN#
Meaning
1
Power Supply
(CN3)
CN6
Earth: connect to Ground
CN7
N_in: connect to N-line (208-230V AC input)
CN8
L_in: connect to L-line (208-230V AC input)
2
S
CN2
S: connect to indoor unit communication
3
4-WAY
CN60
connect to 4 way valve, 208-230V AC when is ON.
4
HEAT1
CN16
connect to compressor heater, 208-230V AC when is ON
5
AC-FAN
CN5
connect to AC fan
6
HEAT2
CN19
connect to chassis heater, 208-230V AC when is ON
7
PMV
CN18
connect to Electric Expansion Valve
8
T5 T4 T3
CN17
connect to pipe temp. sensor T3, ambient temp. sensor T4, exhaust
temp. sensor T5
9
DC-FAN
CN41
connect to DC fan
10
TESTPORT
CN23
used for testing
11
FAN_IPM
IPM2
IPM for DC fan
12
EE_PORT
CN505
EEPROM programmer port
13
U
CN28
connect to compressor
V
CN29
0V AC (standby)
W
CN30
10-200V AC (running)
14
COMP_IPM
IPM1
IPM for compressor

Midea MCA3U-18HRFN1-M(C) Specifications

General

Brand	Midea
Model	MCA3U-18HRFN1-M(C)
Category	Air Conditioner
Language	English