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General| Brand | Mitsubishi Electric |
|---|---|
| Model | MS12NN2 |
| Category | Air Conditioner |
| Language | English |
Details on maximum height difference for refrigerant piping installations.
Provides cooling capacity and operational data for various models.
Graphical representation of cooling capacity and power consumption.
Charts showing pressure relationships based on ambient temperature.
Key operational data including electrical and refrigerant circuit parameters.
Detailed explanation of the 'I FEEL CONTROL' feature.
Instructions for operating the unit in COOL mode.
Instructions for operating the unit in DRY mode.
Instructions for operating the unit in FAN mode.
Details on fan motor speed control for MS09 models.
Explanation of automatic vane control features.
Instructions for setting and using timers.
Procedure for emergency and test operation modes.
Explanation of the automatic restart feature after power interruption.
Service function to shorten timer settings.
Procedure for modifying P.C. boards for individual unit control.
Important safety and preliminary checks before troubleshooting.
General troubleshooting procedure and flowcharts.
Table detailing symptoms, detection methods, and repairs.
Criteria for checking main components like motors and sensors.
Specific troubleshooting steps for the indoor fan motor.
Diagnostic steps for remote control communication issues.
Troubleshooting steps for the indoor unit's main control board.
Diagnostic steps for issues related to the outdoor unit.
Diagrams and voltage test points for the indoor unit's main board.
Diagrams and voltage test points for the indoor unit's main board.
Diagrams and voltage test points for the MUM30NN outdoor unit board.
Diagrams and voltage test points for the MUM30NN2 outdoor unit board.
Explanation of relay operations during coil frost prevention.
Details on indoor fan relay activation based on speed.
Step-by-step guide for disassembling the MS09NW/NW2 indoor unit.
Step-by-step guide for disassembling the MS12/15/17NN indoor unit.
Step-by-step guide for disassembling the MU09NW/NW2 outdoor unit.
Step-by-step guide for disassembling MU12/15/17NN/NN2 outdoor units.
Step-by-step guide for disassembling MUM30NN/NN2 outdoor units.
List of structural components for indoor units.
List of accessories and remote controllers.
List of electrical and functional parts for indoor units.
List of parts for outdoor units.
List of optional parts for the air conditioner.
Details on optional refrigerant extension pipes.
Information on the air cleaning filter.
Information on the deodorizing filter.
