Daikin Super Multi NX FTXS25G2V1B - User Manual

Service
Manual
SiBE121021_C
E-Series / F-Series / G-Series
[Applied Models]
● Inverter Multi : Cooling Only
● Inverter Multi : Heat Pump

Daikin Super Multi NX FTXS25G2V1B Specifications

General

Cooling Capacity	2.5 kW
Heating Capacity	3.2 kW
Indoor Unit Weight	9 kg
Outdoor Unit Dimensions (H x W x D)	550 x 765 x 285 mm
Outdoor Unit Dimensions (WxHxD)	765 x 550 x 285 mm
Power Supply	220-240V / 50Hz

Summary

Part 3 Printed Circuit Board Connector Wiring Diagram

1. Indoor Unit

Details the PCB layout and connector assignments for wall-mounted indoor units.

1.1 Wall Mounted Type

Details the PCB layout and connector assignments for wall-mounted indoor units.

2. Remote Controller

Explains the PCB layout and connectors for wired remote controllers.

2.1 Wired Remote Controller

Explains the PCB layout and connectors for wired remote controllers.

3. Outdoor Unit

Covers the PCB layout and connector details for the outdoor unit.

Part 4 Function and Control

2.3 Freeze Prevention Control

4.13 Malfunctions

Lists and describes various malfunction detection methods, including sensor and current transformer issues.

Part 5 Operation Manual

Part 6 Service Diagnosis

1. Troubleshooting with LED

Provides guidance on troubleshooting indoor unit errors indicated by the operation lamp blinking.

1.1 Indoor Unit

Provides guidance on troubleshooting indoor unit errors indicated by the operation lamp blinking.

2. Problem Symptoms and Measures

Lists common problems and their corresponding measures for diagnosis.

3. Service Check Function

Explains how to use the service check function for RA and SA indoor units via the remote controller.

3.1 RA Indoor Unit - F(C)TXG, FTXS, ATXS, FVXS, FLK(X)S, FDK(X)S Series

Explains how to use the service check function for specific RA indoor unit series using the remote controller.

3.2 SA Indoor Unit - FFQ, FCQ, FDBQ, FBQ, FHQ Series

Details the service check function for SA indoor units using the remote controller.

4. Code Indication on Remote Controller

Lists error codes displayed on the remote controller for RA and SA indoor units and their descriptions.

4.1 RA Indoor Unit - F(C)TXG, FTXS, ATXS, FVXS, FLK(X)S, FDK(X)S Series

Lists error codes displayed on the remote controller for RA indoor units and their descriptions.

4.2 SA Indoor Unit - FFQ, FCQ, FDBQ, FBQ, FHQ Series

Lists error codes displayed on the remote controller for SA indoor units and their descriptions.

4.3 Outdoor Unit

Explains error codes indicated by outdoor unit LEDs and their corresponding meanings.

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

Provides troubleshooting steps for various abnormalities in RA indoor units.

5.1 Indoor Unit PCB Abnormality

Provides troubleshooting steps for indoor unit PCB abnormalities.

5.6 Signal Transmission Error (between Indoor Unit and Outdoor Unit)

Details troubleshooting steps for signal transmission errors between indoor and outdoor units.

6. Troubleshooting for SA Indoor Unit - FFQ, FCQ, FDBQ, FBQ, FHQ Series

Guides troubleshooting for various abnormalities in SA indoor units.

6.1 Indoor Unit PCB Abnormality

Provides troubleshooting steps for indoor unit PCB abnormalities.

6.8 Signal Transmission Error (between Indoor Unit and Remote Controller)

Details troubleshooting steps for signal transmission errors between indoor units and remote controllers.

7. Troubleshooting for Outdoor Unit

Provides troubleshooting steps for various outdoor unit abnormalities.

7.1 Anti-icing Function

7.2 Outdoor Unit PCB Abnormality

Guides troubleshooting for abnormalities in the outdoor unit PCB.

7.7 Discharge Pipe Temperature Control

7.12 Thermistor or Related Abnormality (Outdoor Unit)

Part 7 Removal Procedure

1. Outdoor Unit - 50~75 Class

1.1 Removal of Outer Panels

1.2 Removal of Electrical Box

1.3 Removal of PCBs

Provides instructions for removing Printed Circuit Boards (PCBs) from the outdoor unit.

1.4 Removal of Outdoor Fan; Fan Motor

1.6 Removal of Coils; Thermistors

1.8 Removal of Four Way Valve

1.9 Removal of Compressor

2. Outdoor Unit - 80;90 Class

2.1 Removal of Outer Panels

2.2 Removal of Electrical Box

2.3 Removal of PCBs

Guides on how to remove Printed Circuit Boards (PCBs) from the 80/90 class outdoor unit.

2.4 Removal of Fan Motor

2.5 Removal of Coils; Thermistors

2.7 Removal of Compressor

Part 8 Trial Operation and Field Settings

1. Pump Down Operation

2. Forced Operation

4. Trial Operation

4.1 RA Indoor Unit - F(C)TXG, FTXS, ATXS, FVXS, FLK(X)S, FDK(X)S Series

5. Field Settings

5.1 RA Indoor Unit - F(C)TXG, FTXS, ATXS, FVXS, FLK(X)S, FDK(X)S Series