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MSG-24HRN2
Midea MSG-24HRN2 User Manual
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Service manual
- 38 -
12.7
Operation lamp off and
T
imer lamp flashes
12.8
Operation lamp on and T
imer lamp flashes
EEROM error
, indoor PCB is defective.
12.9
Operation lamp flashes, T
imer lamp flashes .
This is alarm signal when the main chip can’t det
ect over-zero signal. When such failure occurs, the
main control board must have fault.
41
43
Table of Contents
Default Chapter
3
Table of Contents
3
1 Precaution
5
Safety Precaution
5
Warning
5
2 Function
7
3 Dimension
9
Indoor Unit
9
Outdoor Unit
9
4 Specification
10
5 Refrigerant Cycle Diagram
13
6 Operation Limits
14
Cooling Operation
14
Heating Operation
14
7 Schematic Diagram and Wiring Diagram
15
Schematic Diagram
15
Wiring Diagram
16
8 Installation Details
20
Wrench Torque Sheet for Installation
20
Connecting the Cables
20
Pipe Length and the Elevation
20
Air Purging of the Piping and Indoor Unit
21
Pumping down (Re-Installation)
22
Re-Air Purging (Re-Installation)
23
Balance Refrigerant of the 2-Way, 3-Way Valves
24
Evacuation
25
Gas Charging
26
9 Capacity Table
27
Msg-24Crn2
27
Msg-24Hrn2
27
Msg-30Crn2
28
Msg-30Hrn2
28
10 Electronic Function
29
Electronic Control Working Environment
29
Proper Symbols and Their Meaning
29
Function
29
Protection
31
Fan Only Mode
31
Cooling Mode
31
Dehumidifying Mode
32
Heating Mode
32
Defrosting Mode(Available for Heating Mode)
33
Auto Mode
34
Force Cooling Function
34
Sleep Mode
35
Auto Restart Function
35
11 Model and Parameters
37
12 Troubleshooting
38
Display Board
38
Troubleshooting
39
Diagnostic Chart
40
Resetting Phenomenon Often Occurs During Operation
41
Operation Lamp Flashes and Timer Lamp off
41
Operation Lamp Flashes and Timer Lamp on
41
Operation Lamp off and Timer Lamp Flashes
42
Operation Lamp on and Timer Lamp Flashes
42
Operation Lamp Flashes, Timer Lamp Flashes
42
13 Characteristic of Temperature Sensor
43
4
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Midea MSG-24HRN2 Specifications
General
Brand
Midea
Model
MSG-24HRN2
Category
Air Conditioner
Language
English
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