Daikin 2MKS40G2V1B User Manual

Service
Manual
Inverter Multi for 2 Rooms
G-Series
SiBE12-816_D
[Applied Models]
● Inverter Multi : Cooling Only
● Inverter Multi : Heat Pump

Daikin 2MKS40G2V1B Specifications

General

Model	2MKS40G2V1B
Cooling Capacity	4.0 kW
Heating Capacity	4.5 kW
Refrigerant	R32
Sound Power Level Heating	62 dBA
Outdoor Unit Noise Level	48 dBA
Outdoor Unit Dimensions (WxHxD)	765x550x285 mm
Indoor Unit Weight	9 kg
Outdoor Unit Weight	34 kg
Type	Multi-Split
Power Supply	220-240 V / 50 Hz / 1 Phase

Summary

1. Introduction

1.1 Safety Cautions

Provides essential safety precautions for users and workers.

1.2 Used Icons

Explains the meaning of various icons used in the manual.

Part 1 List of Functions

1. Functions

Details the functions of the air conditioning system.

Part 2 Specifications

1. Specifications

Lists technical specifications for indoor and outdoor units.

Part 3 Printed Circuit Board Connector Wiring Diagram

1. Indoor Unit

Provides wiring diagrams for indoor unit components.

Part 4 Function and Control

1. Function of Indoor Unit (RA Models)

Details the functions of RA model indoor units.

2. Function of Indoor Unit (SA Models)

Details the functions of SA model indoor units.

3. Function of Thermistor

Explains the role and function of thermistors in the system.

4. Control Specification

Outlines the system's control specifications and logic.

Part 7 Removal Procedure

1. Outdoor Unit

Provides steps for disassembling the outdoor unit.

Part 8 Trial Operation and Field Settings

1. Pump Down Operation

Details the procedure for pump down operation.

2. Forced Cooling Operation

Explains how to perform forced cooling operation.

3. Trial Operation

Guides on performing trial operation for system verification.

4. Field Settings

Covers various field settings for system configuration.

5. Application of Silicon Grease to a Power Transistor and a Diode Bridge

Details applying silicon grease for heat dissipation.

Part 9 Appendix

1. Piping Diagrams

Visual representation of refrigerant piping connections.

2. Wiring Diagrams

Visual representation of electrical wiring connections.

Part 6 Service Diagnosis

1. Troubleshooting with LED

Guides troubleshooting using LED indicators.

2. Problem Symptoms and Measures

Lists common problems and their solutions.

3. Service Check Function

Details diagnostic functions for service checks.

4. Code Indication on Remote Controller

Explains error codes displayed on the remote controller.

5. Troubleshooting for RA Indoor Unit - F(C)TXG, FTXS, FVXS, FLK(X)S, FDK(X)S Series

Troubleshooting specific to RA indoor units.

6. Troubleshooting for SA Indoor Unit - FFQ Series

Troubleshooting specific to SA indoor units.

7. Troubleshooting for Outdoor Unit

Troubleshooting procedures for the outdoor unit.

8. Check

Describes various checks and tests for components.