To Next PageTo Next PageWhat triggers low discharge temperature protection in Mitsubishi Electric Mr.SLIM SUZ-KA71 VA4.TH Air Conditioner?
Low discharge temperature protection is triggered when the temperature of the discharge temperature thermistor has been 50°C or less for 20 minutes. Check the refrigerant circuit and refrigerant amount.
What if nonvolatile memory data cannot be read properly in Mitsubishi Electric Mr.SLIM SUZ-KA71 VA4.TH?
If nonvolatile memory data cannot be read properly, replace the inverter P.C. board.
Why frequency drop by high pressure protection occurs in Mitsubishi Electric Mr.SLIM SUZ-KA71 VA4.TH?
General| Series | Mr.SLIM |
|---|---|
| Cooling Capacity | 7.1 kW |
| Heating Capacity | 8.0 kW |
| Power Supply | 220-240V, 50Hz |
| Refrigerant | R32 |
| Weight (Outdoor Unit) | 55 kg |
| Type | Split System |
| Noise Level (Outdoor Unit) | 52 dB(A) |
Lists tools required for R410A refrigerant systems, including necessary changes from R22 tools.
Details pipe specifications (OD, wall thickness) and insulation material for R410A.
Specifies the type of refrigerant oil to be used for flare and union seat surfaces.
Instructions for air purging and additional refrigerant charging procedures.
Step-by-step guide for pumping down the refrigerant system safely.
Lists specifications for main electric parts like capacitors, fuses, and modules.
Details maximum refrigerant piping lengths and additional charge amounts based on length.
Describes the ON/OFF timing of the outdoor fan motor relative to the compressor.
Explains the control sequence for the R.V. coil in cooling and heating modes.
Maps various sensors to their purpose and affected actuators in the system.
Explains how to change the defrost finish temperature setting via a jumper wire.
General safety precautions and step-by-step troubleshooting guidelines before starting service.
Lists error codes (LED flashes) and their corresponding symptoms and remedies.
Guides on how to use the self-diagnosis function via the remote controller.
Explains how to check the remote controller's functionality and diagnose communication issues.
Details self-diagnosis for the PAR-21MAA remote controller during operation.
How to recall error history and perform self-diagnosis during maintenance for PAR-21MAA.
Specific instructions for checking the remote controller's operation and diagnosing errors.
Procedure for diagnosing malfunctions using a wireless remote controller.
Provides resistance check methods and criteria for main components like thermistors and motors.
Step-by-step troubleshooting flows for inverter, compressor, and other components.
Guidance on identifying and mitigating electromagnetic noise affecting TVs and radios.
Diagrams and voltage/resistance points for the inverter P.C. board.
Detailed steps and photos for removing the outdoor unit's cabinet.
Procedures for removing the inverter assembly and its P.C. board.
Steps to disconnect and remove the R.V. coil from the unit.
Instructions for removing discharge, defrost, ambient, and heat exchanger thermistors.
Steps for disassembling and removing the outdoor fan motor.
Procedure for safely removing the compressor and 4-way valve.
