Midea MDV-V80W/DN1 - 1. PCB ports instructions

MCAC-VTSM-2013-12 R410a Full DC Inverter Mini VRF
Troubleshooting 89
1. PCB ports instructions
80/105 model
PCB ports instruction
No.
Content
Port voltage
1 CN27
PCB power supply output port
220V
2 CN33
EXV download output port
The first pin on the left: DC12V
The other four pins: in dynamic change
3 CN32
Online programmable port
/
4 CN19
Reserved
/
5 CN21
Load output port
220V
6 CN14
Load output port (SV6)
0V or 220V
7 CN22
Load output port
220V
8 CN15
Load output port (4-way valve)
0V or 220V
9 CN23
Load output port
220V
10 CN16
Load output port
0V or 220V
11 CN34
Signal output of outdoor fan port
DC380V +15V
12
EEPROM port
/
13 CN18
Power supply of outdoor fan port
DC380V +15V
14 CN30
Communication port between indoor units
DC2.5~5V
15 CN29
Communication port between outdoor unit and indoor unit
DC2.5~5V
16 CN13
Signal input port of system low pressure & high pressure detect
switch
DC0~5V (in dynamic change)
17 CN8
Discharge temperature detection port of the inverter compressor
DC0~5V (in dynamic change)
18 CN9
Outdoor temperature & condenser coil temperature detection port
DC0~5V (in dynamic change)
19 CN49
Communication port between PCB and PFC module
The first pin on the left: DC12V
The other four pins: in dynamic change
20 CN31
Reserved
/
21 CN24
Reserved
/
22 CN11
Power input port
220V
23 CN10
Power input port
220V
24 CN17
Communication port between PCB and IPM module
The first pin on the right: DC12V; the second
pin on the right:5V
4
5
6
7
8
9
10
11
13
14 15
16
17
18
19
20
21
2
3
12
22
23
1
24