Daikin MA 90CK7V1 User Manual

SiE-43B
Multi
Service
Manual
[APPLIED MODELS]
• MULTI: Cooling and Heating Pump

Daikin MA 90CK7V1 Specifications

General

Brand	Daikin
Model	MA 90CK7V1
Category	Air Conditioner
Language	English

Summary

3. Diagnosis of Troubles

3-1 Units will not operate at all

Provides a flowchart for diagnosing issues when the unit fails to start.

3-2 Thermostat in the indoor unit rejects turning ON (Even though it is turned ON, the indoor air will not be cooled.)

Offers troubleshooting steps for cooling issues related to thermostat function.

3-3 Something is wrong with the capacity control.

Details diagnostic steps for problems related to capacity control functionality.

4. Wiring diagrams

Heat Pump Multi-System Room Air Conditioners

1. Indoor unit Input/Output chart

2. Outdoor unit PC board configuration and input/output chart

3. Main functions of indoor unit

Describes key operational features and controls of the indoor units.

4. Main functions of outdoor unit

5. Failure diagnosis and test operation by remote controller

Explains how to use the remote controller for diagnostics and test runs.

6. Comprehensive Fault Diagnosis (LEDs and Remote Controller)

Covers general fault diagnosis using unit LEDs and remote controller error codes.

7. Outdoor unit main functions

8. Wiring Diagrams

Provides electrical schematics for indoor and outdoor unit connections.

9. Piping diagrams