Midea MCA3U-09HRFN1-M(C) User Manual

85
PCB board of MOD33-24HFN1-MT0W
No.
Name
CN#
Meaning
1
Power Supply
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
AC-FAN
CN5
connect to AC fan
5
HEAT2
CN19
connect to chassis heater, 208-230V AC when is ON
6
T5 T4 T3
CN17
connect to pipe temp. sensor T3, ambient temp. sensor T4, exhaust
temp. sensor T5
7
PMV
CN18
connect to Electric Expansion Valve
8
HEAT1
CN16
connect to compressor heater, 208-230V AC when is ON
9
DC-FAN
CN414
connect to DC fan
10
TESTPORT
CN23
used for testing
11
FAN_IPM
IPM501
IPM for DC fan
12
COMP_IPM
IPM1
IPM for compressor
13
U
CN27
connect to compressor
V
CN28
0V AC (standby)
W
CN29
200-300V AC (running)
14
EE_PORT
CN505
EEPROM programmer port

Midea MCA3U-09HRFN1-M(C) Specifications

General

Brand	Midea
Model	MCA3U-09HRFN1-M(C)
Category	Air Conditioner
Language	English