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MUZ-FH12NA
Mitsubishi Electric MUZ-FH12NA Manuals
Manuals and User Guides for Mitsubishi Electric MUZ-FH12NA. We have
3
Mitsubishi Electric MUZ-FH12NA manuals available for free PDF download: Service Manual
Mitsubishi Electric MUZ-FH12NA Service Manual (53 pages)
Mitsubishi Electric Split-type air conditioners Outdoor Unit Service manual
Brand:
Mitsubishi Electric
| Category:
Air Conditioner
| Size: 3.16 MB
Table of Contents
Table of Contents
1
Outdoor Unit
1
Service Manual
1
Technical Changes
2
Part Names and Functions
3
Specification
4
Operating Range
5
Power Supply
5
Test Condition
5
Outlines and Dimensions
6
Required Space
7
Muz-Fh09Na Muz-Fh12Na
8
Muz-Fh09Nah Muz-Fh12Nah
8
Wiring Diagram
8
Muz-Fh15Na
9
Muz-Fh15Nah
10
Refrigerant System Diagram
11
Additional Refrigerant Charge
12
Max. Height Difference
12
Max. Refrigerant Piping Length
12
Cooling Capacity
13
Cooling Capacity Corrections
13
Data
13
Performance Data
13
Heating Capacity
14
Cooling
15
Performance Curve
15
Heating
16
Condensing Pressure
17
Standard Operation Data
19
Capacity and Input Correction by Inverter Output Frequency
20
Correction of Cooling Capacity
20
Correction of Cooling Total Input
20
Correction of Heating Capacity
20
Actuator Control
21
Outdoor Fan Motor Control
21
R.V. Coil Control
21
Relation between Main Sensor and Actuator
21
Change in Defrost Setting
22
Changing Defrost Finish Temperature
22
Pre-Heat Control Setting
22
Service Functions
22
Before Troubleshooting
23
Cautions on Troubleshooting
23
Troubleshooting
23
Deleting the Memorized Abnormal Condition
24
Failure Mode Recall Function
24
Judgment of Indoor/Outdoor Abnormality
24
Releasing the Failure Mode Recall Function
24
Flow Chart of the Detailed Outdoor Unit Failure Mode Recall Function
25
Operational Procedure
25
Outdoor Unit Failure Mode Table
26
Troubleshooting Check Table
28
Trouble Criterion of Main Parts
30
Check of Compressor
31
Check of Open Phase
31
How to Check Inverter/Compressor
31
Troubleshooting Flow
31
Check of Compressor Operation Time
32
Check of Compressor Start Failure
32
Check of Compressor Winding
32
Check of Outdoor Thermistors
33
Muz-Fh09/12
33
Muz-Fh15
33
Check of R.V. Coil
34
Unit Operates COOL Mode Even if It Is Set to HEAT Mode
34
Check of Outdoor Fan Motor
35
Check of Power Supply
36
Check of LEV (Expansion Valve)
37
Check of Inverter P.C. Board
38
How to Check Miswiring and Serial Signal Error
39
Check of Defrost Heater
40
Check of Outdoor Refrigerant Circuit
40
Electromagnetic Noise Enters into TV Sets or Radios
41
Back Side of Unit
42
Front Side of Unit
42
Inverter P.C. Board
42
Test Point Diagram and Voltage
42
Disassembly Instructions
44
Removing the Cabinet
44
Terminal with Locking Mechanism" Detaching Points
44
Removing R.V. Coil
45
Removing the Inverter Assembly, Inverter P.C. Board
45
Removing the Discharge Temperature Thermistor
46
Removing Outdoor Fan Motor
47
Removing the Compressor and 4-Way Valve
47
Removing Inverter Assembly, Inverter P.C. Board and Relay P.C. Board
49
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Mitsubishi Electric MUZ-FH12NA Service Manual (58 pages)
OUTDOOR UNIT
Brand:
Mitsubishi Electric
| Category:
Air Conditioner
| Size: 7.66 MB
Table of Contents
Table of Contents
1
Technical Changes
2
Part Names and Functions
3
Specification
4
Outlines and Dimensions
6
Wiring Diagram
8
Refrigerant System Diagram
14
Data
16
Actuator Control
27
Service Functions
28
Troubleshooting
29
Disassembly Instructions
51
Mitsubishi Electric MUZ-FH12NA Service Manual (52 pages)
Brand:
Mitsubishi Electric
| Category:
Air Conditioner
| Size: 6.26 MB
Table of Contents
Table of Contents
1
Technical Changes
2
Part Names and Functions
3
Specification
4
Outlines and Dimensions
6
Wiring Diagram
8
Refrigerant System Diagram
11
Data
13
Actuator Control
21
Service Functions
22
Troubleshooting
23
Disassembly Instructions
44
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