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General| Brand | Mitsubishi Electric |
|---|---|
| Model | MUZ-SF42VE-E1 |
| Category | Air Conditioner |
| Language | English |
Steps to prepare for service, including tools, ventilation, and power disconnection.
Safety measures during repair, avoiding wet hands and touching live parts.
Indicates the introduction of a new model.
Lists accessories provided with the unit, such as drain socket.
Details on maximum piping length, height difference, and size.
Guidelines for calculating extra refrigerant charge based on piping length.
Specifies the acceptable voltage range for operation.
Instructions on setting air flow to maximum for performance testing.
Lists the key temperature and input readings for performance analysis.
Step-by-step guide for measuring temperature differences for service.
Graphs showing cooling capacity and input based on temperature conditions.
Procedure for performing a test run of the unit.
Details on low pressure and current during cooling operation.
Graphs showing outdoor low pressure based on ambient conditions.
Specifies conditions for heat operation testing.
Links to the test run procedure for heat operation.
Describes the ON/OFF control logic for the outdoor fan motor.
Explains the control logic for the reversing valve coil.
Table showing sensor inputs and their effect on actuators.
Procedure for adjusting the defrost finish temperature.
Explanation of pre-heat control for compressor protection.
Important precautions and checks before starting troubleshooting.
Overview of the failure mode recall function's purpose.
Visual guide for recalling failure modes on indoor/outdoor units.
Flowchart for diagnosing inverter and compressor issues.
Procedure to check for open phase issues in the inverter output.
Steps to check the compressor's operational status and winding.
Diagram showing test points and voltages on the inverter P.C. board.
Disassembly steps for specific outdoor unit models.
Step-by-step instructions for disassembling the unit's cabinet.
Steps for removing the cabinet of the MUZ-SF50VE/VEH models.
