Midea M-thermal Split MHA-V4W/D2N8 User Manual

20
Assembly unit Assembly unitCoding
15
16
17
18
19
20
21
22
23
Reserved(CN3)
Output port N to PCB A(CN27)
Port for communication with PCB A(CN17)
Port for ground wire(CN31)
Port for IC programming(CN32)
Port for ground wire(CN37)
Input port for live wire(CN11)
Input port for neutral wire(CN10)
DIP switch(SW3)
Input port for +12V/5V(CN24)
Port for outdoor ambient temp. sensor and
condenser temp.sensor(CN9)
Port for low pressure switch and high pressure
switch(CN13)
Port for discharge temp.sensor(CN8)
Port for TF temp.sensor(CN14)
Port for pressure sensor(CN4)
Port for communication with hydro-box control board
(CN29)
Reserved(CN2)
Reserved(CN30)
Port for electrical expansion value(CN33)
24
25
26
Digital display(DSP1)
Port for chassis electrical heating tape(CN16)(optional)
Port for compressor eletric heating tape 1(CN7)
Port for 4-way value(CN6)
Port for SV6 value(CN5)
Port for compressor eletric heating tape 2(CN8)
Port for sunction temp.sensor(CN1)
1
2
3
4
5
6
7
8
9
Coding
12
11
10
14
13 27 Ourput port L to PCB A(CN28)
2) PCB B, Main control board
1
2
3
4
5
Assembly unit Assembly unitCoding
Coding
6
7
8
9
/ /
Port for fan(CN19)
Output port for +12V/5V(CN20)
Compressor connection port U
Compressor connection port V
Compressor connection port W
Reserved(CN302)
Port for communication with PCB B(CN32)
Input port L for rectifier bridge(CN501)
Input port N for rectifier bridge(CN502)
1 32
16
7
654
8
9
10
11
12
13
14
15
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27

Midea M-thermal Split MHA-V4W/D2N8 Specifications

General

Brand	Midea
Model	M-thermal Split MHA-V4W/D2N8
Category	Heat Pump
Language	English