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General| Brand | Mitsubishi Electric |
|---|---|
| Model | MUZ-FH09NA |
| Category | Air Conditioner |
| Language | English |
Details on test conditions for performance evaluation.
Specifies the operating voltage and temperature ranges for the unit.
Specifies minimum clearance requirements around the outdoor unit for proper operation.
Details maximum piping length, height difference, and pipe sizes.
Calculation method for additional refrigerant based on piping length.
Covers cooling/heating capacities, corrections, performance curves, and inverter output frequency adjustments.
Graphs detailing condensing pressure under various operating conditions.
Table of standard operating parameters for different models.
Describes the ON/OFF timing for the outdoor fan motor relative to the compressor.
Explains the control logic for the reversing valve (R.V.) coil in cooling and heating modes.
Maps sensors to their purposes and related actuators in the system.
Instructions on how to adjust the defrost finish temperature using a jumper.
Details on activating or deactivating the pre-heat control for low-temperature operation.
General safety precautions and initial troubleshooting steps.
Procedure for recalling and interpreting error codes from the unit's memory.
Lists specific failure modes, LED indications, conditions, and remedies for the outdoor unit.
A comprehensive table correlating symptoms with LED indications and corrective actions.
Diagnostic criteria for resistance and voltage checks of key components.
Step-by-step diagnostic guides for specific component issues and system faults.
Guidance on identifying and resolving electromagnetic interference problems.
Diagrams of the inverter P.C. board showing test points and voltage measurements.
Step-by-step procedure for removing the outer cabinet panels of the unit.
Instructions for removing the inverter power module and associated circuit boards.
Procedure for detaching the reversing valve coil from the unit.
Steps for removing various temperature sensors like defrost and ambient thermistors.
Guide on how to remove the outdoor fan motor and propeller.
Procedure for detaching the main compressor and the 4-way reversing valve.
