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ATOM MDV-V24WMN1T
Midea ATOM MDV-V24WMN1T Manuals
Manuals and User Guides for Midea ATOM MDV-V24WMN1T. We have
1
Midea ATOM MDV-V24WMN1T manual available for free PDF download: Service Manual
Midea ATOM MDV-V24WMN1T Service Manual (97 pages)
Brand:
Midea
| Category:
Air Conditioner
| Size: 7 MB
Table of Contents
Table of Contents
2
Content
2
Safety Cautions
4
General Information
9
Combination Ratio Restrictions
9
External Appearance
10
Restrictions on Refrigerant Pipes
11
Piping Design
11
Refrigerant Charge Calculation
14
Midea VRF System
16
Refrigerant Circuit
16
Functional Parts Layout of Outdoor Units
16
Major Components Functions and Circuit Diagrams of Outdoor Units
18
Refrigerant Flow for each Operation Mode
19
Heating Operation
20
Electrical Components and Wiring Diagrams
22
Outdoor Unit Circuit Board Arrangement
22
Outdoor Unit Circuit Board Components
23
Communication Board
24
Filter Board
25
Function and Control
29
Operation Mode
29
Stop Control
30
Startup Control
31
Basic Control
33
Normal Operation
33
Compressor Control
34
Electronic Expansion Valve Control
36
Outdoor Unit Fan Control
37
Heat Exchanger Control
38
Special Control
39
Oil Return Control
39
Defrosting Operation
41
Crankcase Heater Control
47
Test Operation Control
50
Field Setting
54
Commissioning
54
Spot Check
56
Access Service Menu
58
Troubleshooting
61
Malfunction Code of Outdoor Unit
61
Service Code of Outdoor Unit
62
Troubleshooting of Mainboard
65
A01: Emergency Stop
65
AA1: Inverter Driver Chip and Main Control Chip Mismatch
66
1B01/4B01: Electronic Expansion Valve (EEVA/C) Error
67
C21: Communication Error between Indoor Units and Outdoor Unit
68
C26/C28: Number of Indoor Units Detected by the Outdoor Unit Has Decreased/Increased
69
1C41: Communication Error between Main Control Chip and Inverter Driver Chip
70
E41/F41/F91/Fa1/Fc1/Fd1: T4/T3/T5/T8/TL/T7 Error (Open/Short)
71
F71: Discharge Temperature Sensor Error (Open/Short)
72
F62/F6A: Inverter Module Temperature (Tf) Protection
73
F72/F7A: Discharge Temperature (T7C) Protection
74
F75: Compressor Discharge Insufficient Superheat Protection
75
P11: High Pressure Sensor Malfunction
76
P12: Discharge Pipe High Pressure Protection
77
P22/P25: Low Pressure Protection
78
1P32/1P33: Compressor High DC Bus Current Protection
79
P51/P52: Power Voltage Protection
80
1P56: Inverter Module DC Bus Low Voltage Error
81
1P57/1P58: Inverter Module DC Bus High Voltage Error
82
1P59: Inverter Module DC Bus Voltage Drop Protection
83
1P71: EEPROM Error
84
Troubleshooting of Compressor Driver
85
1L11: Software Overcurrent
85
1L2E: Inverter Module High Temperature Protection
86
1L46: IPM Protection
87
1L5E: Startup Failed
88
1L52: Locked-Rotor Protection
89
1L6E: Motor Phase Loss Protection
90
Troubleshooting of Fan Driver
91
1J01: 1J** Error Occurs 10 Times in 120 Minutes
91
Appendix
92
Key Components and Parts Type
92
Resistance of Temperature Sensor a
93
Resistance of Temperature Sensor B
94
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