Midea Aqua thermal Super Series - PCB Introduction

Aqua thermal Super
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Midea Aqua thermal Super Service Manual
2 PCB Introduction
2.1 Types
Aqua thermal Super 65&75kW unit have one main control board, one compressor inverter module boards, two DC fan inverter
module boards and one filter board.
Aqua thermal Super 110&140kW unit have one main control board, two compressor inverter module boards, two DC fan inverter
module boards and two filter boards.
2.2 Main PCB
Main PCB component
For 65/75/110/140kW
Label
Code
Port
Explanation
Voltage
1
CN32
POWER
Power supply port of the main control board
220-240V
2
CN99
Expanding board power connector
220-240V
3
CN68
PUMP
Pump contactor control port (connected in factory)
220-240V
4
CN74/CN67
CCH
compressor heating belt
220-240V
5
CN75/CN66
EVA-HEAT
Plate heat exchanger electric heating belt
220-240V
6
CN48
ST1
Four-way valve
220-240V
7
CN47
SV6
One-way solenoid valve
220-240V
1
2
3
4
5
6
7
8
9
10
11
1213
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
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