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

82
PCB board of MOB30-09HFN1-MX0W, MOB30-12HFN1-MV0W, MOCA30-18HFN1-MT0W,
MOB01-09HFN1-MW0W, MOB01-12HFN1-MV0W, MOCA01-18HFN1-MT0W, MOCA31-18HFN1-MT0W
MOD31-24HFN1-MT0W
No.
Name
CN#
Meaning
1
Power Supply
(CN3)
CN6-1
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
CN4
connect to compressor heater, 208-230V AC when is ON
5
AC-FAN
CN11
connect to AC fan
6
HEAT2
CN16
connect to chassis heater, 208-230V AC when is ON
7
CN38
CN38
connect to PC communication
8
PMV
CN18
connect to Electric Expansion Valve
9
DC-FAN
CN414
connect to DC fan
10
FAN_IPM
IPM 501
IPM for DC fan
11
CN19
CN19
Internal drive motor
12
TESTPORT
CN23
used for testing
13
CN9
CN9
connect to PC communication
14
U
CN28
connect to compressor
V
CN29
0V AC (standby)
W
CN30
10-200V AC (running)
15
COMP_IPM
IPM 301
IPM for compressor
16
T5 T4 T3
CN17
connect to pipe temp. sensor T3, ambient temp. sensor T4, exhaust
temp. sensor T5

Midea MCA3U-09HRFN1-M(C) Specifications

General

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