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Mitsubishi Electric Manuals
Air Conditioner
Mr. Slim MXZ-2B20NA
Service manual
Table Of Contents - Mitsubishi Electric MXZ-2B20NA Service Manual
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Also See for MXZ-2B20NA
:
Service manual
(96 pages)
,
Installation manual
(28 pages)
,
Installation manual
(28 pages)
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Table Of Contents
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
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Table of Contents
Table Of Contents
1
Outdoor Unit
1
Service Manual
1
Use The Specified Refrigerant Only
2
Technical Changes
2
Part Names And Functions
3
Mxz-2B20Na
3
Mxz-5B42Na
3
Specification
4
Noise Criteria Curves
9
Outlines And Dimensions
11
Mxz-3B24Na
12
Mxz-4B36Na
13
Installation Space
14
Service Space
14
Wiring Diagram
15
Refrigerant System Diagram
19
Operating Range
20
Max. Refrigerant Piping Length & Pipe Size Selection
20
Data
27
Power Supply
30
Air Flow
31
Main Readings
31
How To Measure The Indoor Air Wet And Dry Bulb Temperature Difference
31
Capacity And The Input Curves
32
Cooling Capacity
32
Total Input
32
Heating Capacity
32
Capacity And Input Correction By Means Of Inverter Output Frequency
35
06-Class Unit In Single Operation
35
09-Class Unit In Single Operation
35
12-Class Unit In Single Operation
35
Outdoor Low Pressure And Outdoor Unit Current
38
Cool Operation
38
How To Work Fixed-Frequency Operation
38
Heat Operation
38
15-Class Unit In Single Operation
41
Actuator Control
54
Service Functions
54
Pre-Heat Control
54
How To Deactivate Pre-Heat Control
54
Auto Line Correcting
55
How To Activate This Function
55
Led Indication During Detection
55
Led Indication After Detection
55
Troubleshooting
56
Cautions On Troubleshooting
56
Before Troubleshooting
56
Take Care Of The Following During Servicing
56
Flow Chart Of The Detailed Outdoor Unit Failure Mode Recall Function
57
Outdoor Unit Failure Mode Table
58
Cooling
59
Instruction Of Troubleshooting
60
Operation Start
60
Troubleshooting Check Table
61
Heating
61
Trouble Criterion Of Main Parts
65
Defrost Thermistor (Rt61)
65
Compressor
65
Outdoor Fan Motor
65
Check Of Power Supply
66
How To Check Mis-Wiring And Serial Signal Error
67
Check Of R.v. Coil
68
When Heating Operation Does Not Work
69
When Cooling Operation Does Not Work
69
Check Of Lev
70
How To Check Inverter/Compressor
71
Check Of Outdoor Thermistors
72
Check Of Outdoor Fan Motor
72
Check Of Hps
74
Check Of Bus-Bar Voltage
74
The Other Cases
74
Test Point Diagram And Voltage
75
Electronic Control P.c. Board
75
Outdoor Control P.c. Board
77
Noise Filter P.c. Board
78
Power Board
79
Outdoor Power P.c. Board
81
Disassembly Instructions
82
Terminal With Locking Mechanism
82
Removing The Compressor
82
12-1. Mxz-2B20Na
82
Removing The Electronic Control P.c. Board
83
Removing The Fan Motor
83
Removing The 4-Way Valve
84
Removing The Expansion Valve
84
Removing The Reactor
84
Removing The Panels
88
Removing The Outdoor Control P.c. Board
89
Removing The Compressor And 4-Way Valve
90
Mxz-2B20Na Mxz-2B20Na-1 Cooling
93
Mxz-2B20Na Mxz-2B20Na-1 Heating
94
Mxz-3B24Na Mxz-3B24Na-1 Cooling
95
Mxz-3B24Na Mxz-3B24Na-1 Heating
97
Mxz-3B30Na Mxz-3B30Na-1 Cooling
99
Mxz-3B30Na Mxz-3B30Na-1 Heating
102
Mxz-4B36Na Cooling
105
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Table of Contents
Troubleshooting
Troubleshooting
56
Instruction of troubleshooting
60
Troubleshooting check table
61
Check of power supply
66
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This manual is also suitable for:
Mxz-3b24na
Mxz-3b30na
Mxz-4b36na
Mxz-5b42na
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