Daikin 3MKS50E3V1B User Manual

Service
Manual
SiBE121135
E / F / G / K-Series
[Applied Models]
O Inverter Multi : Cooling Only
O Inverter Multi : Heat Pump

Daikin 3MKS50E3V1B Specifications

General

Model	3MKS50E3V1B
Category	Air Conditioner
Brand	Daikin
Cooling Capacity	5.0 kW
Heating Capacity	5.6 kW
Refrigerant	R32
Type	Split System
Power Supply	220-240V, 50Hz
Indoor Unit Noise Level	19 dB(A)
Outdoor Unit Noise Level	48 dB(A)
Outdoor Unit Dimensions (HxWxD)	550 x 780 x 285 mm

Summary

Part 1 List of Functions

1. Cooling Only

Lists functions for cooling-only operation, covering outdoor and indoor units.

2. Heat Pump

Lists functions for heat pump operation, covering outdoor and indoor units.

Part 2 Specifications

1. Cooling Only

Provides technical specifications for outdoor and indoor units in cooling mode.

2. Heat Pump

Provides technical specifications for outdoor and indoor units in heat pump mode.

Part 3 Printed Circuit Board Connector Wiring Diagram

1. Outdoor Unit

Details connectors and parts on the main and service monitor PCBs of the outdoor unit.

2. Indoor Unit

Lists connectors and parts for various indoor unit series PCBs.

3. Wired Remote Controller

Identifies connectors and parts for wired remote controllers like BRC1D528 and BRC1E52A7/B7.

Part 4 Function and Control

1. Indoor Unit Control (RA Models)

Explains various control functions for RA model indoor units, including temperature and fan speed.

2. Indoor Unit Control (SA Models)

Details control functions for SA model indoor units, such as drain pump and freeze prevention.

3. Function of Thermistor

Explains the role and function of various thermistors in the system.

4. Control Specification

Outlines control specifications including mode hierarchy and frequency control.

Part 5 Operation Manual

1. System Configuration

Describes the overall system configuration and user information for handling and operation.

2. RA Indoor Unit

Provides manual contents and reference pages for RA indoor unit series.

3. SA Indoor Unit

Lists manual contents and reference pages for SA indoor unit series.

Part 6 Service Diagnosis

1. Troubleshooting with LED

Explains how to troubleshoot using LED indicators on the indoor and outdoor units.

2. Problem Symptoms and Measures

Lists common problems, their symptoms, and corresponding measures for diagnosis.

3. Service Check Function

Details service check functions accessible via the remote controller for diagnosis.

4. Code Indication on Remote Controller

Lists error codes displayed on the remote controller and their descriptions.

Part 7 Removal Procedure

1. Outdoor Unit: 40-75 Class

Provides step-by-step instructions for removing parts of the 40-75 class outdoor unit.

2. Outdoor Unit: 80/90 Class

Details the step-by-step procedure for removing parts of the 80/90 class outdoor unit.

3. Removal of PCBs

Provides instructions for removing printed circuit boards from the outdoor unit.

Part 8 Trial Operation and Field Settings

1. Pump Down Operation

Explains the procedure for pump down operation, crucial for unit relocation or disposal.

2. Forced Operation

Details how to use the forced operation mode for cooling and heating.

3. Wiring Error Check Function

Explains the function for automatically checking and correcting wiring errors.

4. Trial Operation

Guides on performing trial operation for RA indoor units.

Part 9 Appendix

1. Piping Diagrams

Presents diagrams illustrating refrigerant piping for various models and configurations.

2. Wiring Diagrams

Provides wiring diagrams for outdoor and indoor units, essential for electrical troubleshooting.