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General| Model | MVZ-A18AA7 |
|---|---|
| Type | Air Handler |
| Series | MVZ |
| Cooling Capacity | 18, 000 BTU/h |
| Refrigerant | R410A |
| Power Supply | 208/230V, 1-Phase, 60Hz |
General safety instructions to follow before accessing electrical terminals.
Important guidelines for handling and using R410A refrigerant safely.
Schematic illustrating the electrical connections for the indoor units.
Details on mode settings and function parameters for the field-installed heater.
Important safety precautions and care instructions to follow before and during troubleshooting.
Procedure and interpretation of the self-check function for error detection.
Table listing error codes, their causes, and recommended countermeasures.
Guides troubleshooting based on observed phenomena like LED status.
Troubleshooting steps for specific error codes related to sensors and communication.
Troubleshooting steps for communication errors and board issues.
Diagrams indicating test points on the power supply and controller boards.
Detailed test points and voltage references for the power supply board.
Diagrams and descriptions of test points on the indoor controller board.
Criteria for checking the normal operation of main components like thermistors.
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