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Daikin Super Multi NX FTXS25J2V1B - User Manual

Daikin Super Multi NX FTXS25J2V1B
501 pages
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Service
Manual
SiBE121021_C
E-Series / F-Series / G-Series
[Applied Models]
Inverter Multi : Cooling Only
Inverter Multi : Heat Pump

Table of Contents

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Daikin Super Multi NX FTXS25J2V1B Specifications

General IconGeneral
BrandDaikin
ModelSuper Multi NX FTXS25J2V1B
CategoryAir Conditioner
LanguageEnglish

Summary

Introduction

Safety Cautions

Details crucial safety precautions classified into Warning and Caution, emphasizing potential dangers.

Printed Circuit Board Connector Wiring Diagram

Indoor Unit Wiring Diagrams

Wiring diagrams for indoor units, covering various types.

Wall Mounted Type Indoor Unit Wiring

Connector diagrams for wall-mounted indoor units.

Floor Standing Type Indoor Unit Wiring

Connector diagrams for floor-standing indoor units.

Floor; Ceiling Suspended Dual Type Indoor Unit Wiring

Wiring diagrams for floor/ceiling suspended dual type indoor units.

Duct Connected Type Indoor Unit Wiring

Wiring diagrams for duct-connected indoor units.

Ceiling Mounted Cassette Type Indoor Unit Wiring

Wiring diagrams for ceiling-mounted cassette type indoor units.

Ceiling Mounted Built-in Type Indoor Unit Wiring

Wiring diagrams for ceiling-mounted built-in type indoor units.

Ceiling Suspended Type Indoor Unit Wiring

Wiring diagrams for ceiling-suspended type indoor units.

Outdoor Unit Wiring Diagrams

Wiring diagrams for the outdoor unit.

Function and Control

2-Area INTELLIGENT EYE Operation

Explains 2-Area INTELLIGENT EYE for airflow optimization.

INTELLIGENT EYE Operation

Explains INTELLIGENT EYE for energy saving.

Inverter POWERFUL Operation

Details POWERFUL operation for maximum capacity.

Drain Pump Control

Details drain pump control logic.

Freeze Prevention Control

Describes freeze prevention control.

Hot Start Control (In Heating Operation Only)

Details hot start control for heating.

Frequency Control

Details frequency determination logic.

Discharge Pipe Temperature Control

Describes control logic based on discharge pipe temperature.

Input Current Control

Details input current control.

Freeze-up Protection Control

Explains frequency limitation to prevent freezing.

Heating Peak-cut Control

Details heating peak-cut control.

Liquid Compression Protection Function

Explains compressor protection.

Defrost Control

Details defrost control.

Low Hz High Pressure Limit

Describes low Hz high pressure limit.

Electronic Expansion Valve Control

Outlines electronic expansion valve controls.

Malfunctions

Covers malfunction detection.

Service Diagnosis

Troubleshooting with LED

Troubleshooting based on LED indicators for indoor and outdoor units.

Indoor Unit LED Troubleshooting

Troubleshooting indoor unit errors via operation lamp.

Outdoor Unit LED Troubleshooting

Diagnosing outdoor unit conditions using LED indicators.

Problem Symptoms and Measures

Lists common issues and solutions.

Service Check Function

Explains service check functions for remote controllers and diagnostics.

RA Indoor Unit Service Check

Service check procedures for RA indoor units.

SA Indoor Unit Service Check

Service check procedures for SA indoor units.

Code Indication on Remote Controller

Lists and explains error codes displayed on remote controllers.

RA Indoor Unit Error Codes

Error codes for RA indoor units and their meanings.

SA Indoor Unit Error Codes

Error codes for SA indoor units and their meanings.

Outdoor Unit Error Codes

Error codes indicated by outdoor unit LEDs.

Troubleshooting for RA Indoor Unit

Detailed troubleshooting for RA indoor units.

Indoor Unit PCB Abnormality Troubleshooting

Troubleshooting indoor unit PCB abnormalities.

Freeze-up Protection Control or Heating Peak-cut Control Troubleshooting

Troubleshooting freeze-up and heating peak-cut controls.

Fan Motor or Related Abnormality Troubleshooting

Troubleshooting fan motor and related problems.

Thermistor or Related Abnormality (Indoor Unit) Troubleshooting

Troubleshooting indoor unit thermistor issues.

Front Panel Open; Close Fault Troubleshooting

Troubleshooting front panel faults.

Signal Transmission Error (Indoor to Outdoor) Troubleshooting

Troubleshooting signal transmission errors.

Unspecified Voltage Troubleshooting

Troubleshooting unspecified voltage issues.

Troubleshooting for SA Indoor Unit

Detailed troubleshooting for SA indoor units.

Indoor Unit PCB Abnormality Troubleshooting (SA)

Troubleshooting indoor unit PCB abnormalities.

Drain Water Level System Abnormality Troubleshooting

Troubleshooting drain water level system issues.

Removal Procedure

Trial Operation and Field Settings

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