Mitsubishi Electric MUH15TN Manuals

Manuals and User Guides for Mitsubishi Electric MUH15TN. We have 1 Mitsubishi Electric MUH15TN manual available for free PDF download: Service Manual

Mitsubishi Electric MUH15TN Service Manual

Mitsubishi Electric MUH15TN Service Manual (130 pages)

Wireless type

Brand: Mitsubishi Electric | Category: Air Conditioner | Size: 3.04 MB

Table of Contents

Table of Contents
1
Service Manual
1
Different Points
2
Features
2
Msh12Tn Msh12Tn
2
Muh15Tn
2
- Auto-Restart Function
  3
- High Performance Rotary Compressor
  3
- Extra Energy Savings
  4
- High-Speed Heating and Cooling
  4
- Inverter Technology
  4
- Optimum Comfort Year-Round
  4
- Technical Changes
  5
  - Accessories
    7
  - Indoor Unit
    7
- Part Names and Functions
  7
  - Outdoor Unit
    8
  - Remote Controller
    9
  - Indoor Units Combination
    10
  - Operating Range
    11
  - Specifications
    11
  - Max. Height Difference
    14
  - Max. Refrigerant Piping Length
    14
  - Max. Refrigerant Piping Length & Pipe Size Selection
    16
  - Performance Data
    17
  - Cooling Capacity Corrections
    18
  - Heating Capacity
    18
  - Performance Curve
    19
  - Condensing Pressure
    23
  - Power Supply
    27
  - Standard Operation Data
    27
  - Operating Range
    31
  - Additional Refrigerant Charge
    32
  - Outlet Air Speed and Coverage Range
    32
  - Air Flow
    33
  - Capacity and the Input Curves
    33
  - How to Measure the Indoor Air Wet-Bulb/Dry-Bulb Temperature Difference
    33
  - Main Readings
    33
  - Capacity and Input Correction by Means of Inverter Output Frequency
    34
  - Outdoor Low Pressure and Outdoor Unit Current
    35
  - 12-Class Unit in Single Operation
    36
  - 15-Class Unit in Single Operation
    37
  - 17-Class Unit in Single Operation
    38
- Outlines and Dimensions
  39
- Outdoor Unit
  40
- Wiring Diagram
  43
- Refrigerant System Diagram
  51
Indoor Unit Display Section
54
Microprocessor Control
54
- Wireless Remote Controller
  54
- “I Feel Control” Operation
  55
- Coil Frost Prevention
  56
- COOL Mode of “I FEEL CONTROL”
  56
- Indoor Fan Speed Control
  56
- TEMPERATURE Buttons
  56
- DRY Mode of “I FEEL CONTROL”
  57
- HEAT Mode of “I FEEL CONTROL”
  57
- Operation Time Chart
  57
- Flow Soft Control
  58
- High Pressure Protection
  58
- Warm Air Control
  58
- Defrosting
  59
- Cool Operation
  60
- Dry Operation
  60
- Outdoor Temperature Control
  60
- R.V. Coil Control
  60
- Auto Vane Operation
  61
- Fan Motor Control
  61
- Fan Motor Lock-Up Protection
  61
- Rotational Frequency Feedback Control
  61
- Cold Air Prevention in HEAT Operation
  62
- Program Timer
  62
- Swing Mode
  62
- Timer Operation
  62
- Emergency-Test Operation
  63
- Inverter Multi System Control
  64
- At Normal Operation
  65
- At the Start of Operation
  65
- Inverter Main Power Supply Circuit
  65
- Outline of Main Power Supply Circuit
  65
- Elimination of Electrical Noise
  66
- Function of Main Parts
  66
- Ipm
  66
- Optimal Voltage Control
  66
- Determination of LEV Standard Opening in each Indoor Unit
  67
- LEV Control
  67
- Simultaneous Correction of LEV Openings by Suction Super Heat
  68
- LEV Opening Correction by Discharge Temperature
  69
- Separate Correction
  69
- Conditions to Enter Defrosting Mode
  70
- Heat Defrosting Control
  70
- High Pressure Protection Control on Heat Mode
  70
- Operational Frequency Range
  70
- Compressor Operation Frequency
  71
- Discharge Temperature Protection Control
  71
- Outdoor Fan Control
  71
- Refrigerant Recovery Control on Heating
  71
- Change in Defrost Setting
  72
- Compulsory Defrosting Mode for Service
  72
- Relation between Main Sensor and Actuator
  72
Service Functions
72
Troubleshooting
75
- Instruction of Troubleshooting
  76
- Troubleshooting Check Table
  78
- Trouble Criterion of Main Parts
  80
- Check of Indoor Fan Motor
  83
- Indoor Fan Does Not Operate
  83
- Check of Remote Controller and Receiver P.C. Board
  84
- Check of Indoor Electronic Control P.C. Board
  85
- Check of Outdoor Unit
  86
- How to Check Mis-Wiring and Serial Signal Error
  87
- Check of Outdoor Thermistor
  88
- Check of Power Supply
  89
- Check of Serial Signal
  89
- Check of R. V. Coil
  90
- Check of Inverter/Compressor
  91
- Check of LEV
  91
- Check of Fan Motor
  92
- Check of Thermistor
  92
- Check of HPS
  93
- The Other Cases
  93
- Test Point Diagram and Voltage
  94
- Outdoor Deicer P.C. Board
  96
- Electronic Control P.C. Board
  97
- Noise Filter P.C. Board
  98
- I.P.M P.C. Board
  99
- Relay P.C. Board
  99
- Compressor Contactor
  100
- Relay Operation
  100
- Solid State Relay
  100
Disassembly Instructions
101
- Removing the Electrical Box
  102
- Removing the Vane Motor
  102
- Removing the Line Flow Fan and the Indoor Fan Motor
  103
- Removing the Electronic Control P.C. Board
  104
- Removing the Front Panel
  104
- Removing the Indoor Fan Motor and the Line Flow Fan
  105
- Removing the Cabinet
  106
- Removing the Deicer P.C. Board
  106
- Removing the Compressor
  107
- Removing the Propeller Fan and the Outdoor Fan Motor
  107
- Removing the Heat Exchanger and Compressor
  111
- Removing the 4-Way Valve
  113
- Removing the Linear Expansion Valve
  113
- Removing the Reactor
  113
- Indoor Unit Structural Parts
  114
Parts List
114
Optional Parts
126
Refrigerant Pipes
126

Advertisement

Advertisement

Related Products

Mitsubishi Electric Categories

Air Conditioner

Air Conditioner Controller

Projector

Projector Inverter Heat Pump

More Mitsubishi Electric Manuals