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

91
No.
Name
CN#
Meaning
1
Power Supply
CN1
L1_in: connect to L1-line (230V AC input)
CN3
L2_in: connect to L2-line (230V AC input)
2
T5
CN8
Exhaust temp. sensor T5
3
TESTPORT
CN35
used for testing
4
HEAT1
CN19/CN20
connect to chassis heater, 208-230V AC when is ON
5
HEAT2
CN24/CN25
connect to compressor heater, 208-230V AC when is ON
6
4-WAY
CN17/CN18
connect to 4 way valve, 208-230V AC when is ON.
7
AC-FAN2
CN31/CN36/CN28
connect to AC fan2
8
AC-FAN1
CN27/CN34/CN32
connect to AC fan1
9
H-PRO,L-RPO
CN10
connect to high and low pressure swtich
(pin1-pin2&pin3-pin4:5VDC pulse wave)
10
Compressor
Top
CN14
connect to compressor top temperature sensor
11
T2B
CN11
connect to pipe temp. sensor T2B
12
T4 T3
CN9
connect to pipe temp. sensor T3, ambient temp. sensor T4
13
PMV
CN15/CN23/CN26/
CN30/CN33/CN38
connect to Electric Expansion Valve(A~F)
14
/
CN6
connect to IPM&PFC board CN9
15
PQE
CN22
Communication to indoor unit

Midea MCA3U-09HRFN1-M(C) Specifications

General

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