Midea MHA-V6W/D2N8-B User Manual

M thermal Split
42 202004
Midea M thermal Split
Service Manual
Table 4-2.4: MHA-V12(14,16)W/D2RN8-B outdoor unit main PCB for refrigerant system
Label in Figure
4-2.4
Code Content
1 CN38
Port for GND
2 CN27
Port for 2-way valve 6
3 CN20
Port for 2-way valve 5
4 CN7
Port for eletric heating tape2
5
CN10
Port for eletric heating tape1
6
CN11
Reserved
7
CN18
Port for 4-way value
8
CN21
Reserved
9
CN41
Power supply port from main PCB for invert module board
10
CN26
Port for communication with Power Meter
11
CN24
Port for communication with hydro-box control board
12
CN4
Port for communication with main PCB for invert module board
13
CN6
Port for pressure sensor
14
CN36 Port for communication with main PCB for refrigerant system
15
CN5 Port for temp. sensor Th
16
CN8 Port for temp. sensor Tp
17
CN9 Port for outdoor ambient temp. sensor and condenser temp. sensor
18
DSP1 Digital display(DSP1)
19
S5,S6 DIP switch(S5,S6)
20
CN31 Port for low pressure switch(CN31)
21
CN29 Port for high pressure switch and quick check(CN29)
22
S3
Rotary dip switch(S3)
23
CN35
Port for temp. sensors(TW_out, TW_in, T1, T2,T2B )
24
CN28
Port for communication XYE
25
S3, S4
Key for fore cool & check
26
CN37
Port for communication H1H2E
27
CN22
Port for electrical expansion value
28
CN30
Port for fan 15VDC power supply
29
CN53
Port for fan 310VDC power supply
30
CN109
Port for fan
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Midea MHA-V6W/D2N8-B Specifications

General

Brand	Midea
Model	MHA-V6W/D2N8-B
Category	Air Conditioner
Language	English