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General| Refrigerant | R410A |
|---|---|
| Type | Split System |
| Cooling Capacity | 3500 W |
| Heating Capacity | 3500 W |
| Operating Temperature (Cooling) | 18-43 °C |
| Operating Temperature (Heating) | -7°C ~ 24°C |
Introduction to the service manual for split wall-mounted air conditioners.
Technical specifications for various indoor unit models.
Technical specifications for various outdoor unit models.
Important safety precautions and warnings regarding the installation process.
Important warnings related to installation procedures and component use.
Cautions to be observed during installation and operation to prevent issues.
Guidelines for operating the air conditioner safely and effectively.
Table specifying torque values for installation fasteners.
Guidelines for electrical connections and refrigerant pipe dimensions/elevation.
Criteria for selecting optimal indoor unit mounting locations.
Requirements for adequate space for unit installation and servicing.
Maximum permissible height difference between indoor and outdoor units.
Guidelines for selecting appropriate locations for the outdoor unit.
Detailed specifications for clearance around the outdoor unit.
Instructions for installing mounting brackets and the wall plate for the indoor unit.
Guidance on drilling holes and installing refrigerant pipes and drain.
Procedures for hanging and securing the indoor unit onto the wall mount.
Procedures and precautions for installing the outdoor unit.
Standard procedure for connecting refrigerant pipes and purging air.
Table specifying torque values for pipe connections.
Steps for evacuating the refrigerant system using a vacuum pump.
Checklist to confirm the unit is installed correctly.
Guidance on managing and minimizing operational noise.
Recommendations for periodic inspections and maintenance.
Reference to diagrams and parts lists for indoor/outdoor units.
Illustration of the refrigerant flow and working principle.
Detailed technical parameters for various unit models.
Circuit diagrams for various indoor unit models.
Circuit diagrams for various outdoor unit models.
Schematic for the 38-section crystal color PCB.
Schematic for the Mitsubishi main chip PCB (65 model).
Schematics for the 18NV 85 model's control system.
Explanation of display panel indicators (LEDs) and their functions across different configurations.
Explanation of the intelligent defrost mechanism and conditions.
Role of the outdoor PCB in the defrost process.
Conditions required for initiating the defrost cycle.
Criteria for concluding the defrost cycle.
Information regarding the outdoor sensor for defrost.
Conditions required for initiating the defrost cycle.
Criteria for concluding the defrost cycle.
Explanation of the timer features for unit operation.
Details on the sleep mode and its effects.
Information on the emergency key for manual control.
Table explaining LED indicators and corresponding fault codes.
Table explaining LED indicators and corresponding fault codes.
Table explaining LED indicators and corresponding fault codes.
Steps to resolve errors related to indoor temperature sensors.
Troubleshooting steps for indoor coil pipe temperature sensor errors.
Initial checks for indoor fan motor non-operation.
Initial checks for compressor non-operation.
Steps for issues with transmission marks, batteries, and receiver signals.
Steps to verify display and unit operational status.
Diagnostic steps for outdoor unit and compressor operation.
Checks for indoor unit operation and control board functionality.
Checks related to power supply, switches, and wiring.
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