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LUKO FD-S Series - User Manual

LUKO FD-S Series
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LUKO’s FD-S & FD-X Series
DUCTED DEHUMIDIFIER
User’s Manual
KEEP THESE INSTRUCTIONS FOR FUTURE REFERENCE
Thank you for choosing our dehumidifier. This owner’s manual will provide you with
valuable information necessary for the proper care and maintenance of your new
dehumidifier. Please take a few moments to read the instructions thoroughly and
familiarize with all the operational aspects of this dehumidifier. This unit removes
excessive moisture from the air to create a more comfortable environment.

Table of Contents

Questions and Answers

  • J
    Joseph HernandezAug 7, 2025
    Why is my LUKO Dehumidifier not performing as expected?
    • N
      nelsoncassandraAug 7, 2025
      If your LUKO Dehumidifier isn't dehumidifying as expected, several factors could be at play. The air temperature or humidity might have dropped. The humidity level on the controller may need calibration. The unit could be in a defrost cycle. A dirty or clogged air filter can also reduce performance. There might be a low refrigerant charge due to leaks, or air leaks in the ducting. In some cases, the compressor may be damaged, or the air duct isn't properly installed, leading to insufficient air volume.
  • P
    palmeraliciaAug 12, 2025
    Why is my LUKO Dehumidifier not turning on?
    • T
      Timothy MorrisAug 12, 2025
      If your LUKO Dehumidifier isn't operating, with no fan, compressor, or controller power, consider these potential causes: 1. The device isn't plugged in or lacks power supply. 2. The controller is damaged. 3. Internal wiring is poorly connected. 4. The 3 Phase Protector is faulty, or the phase sequence is incorrect. 5. There's a voltage failure. 6. The Low Pressure Switch is activated, possibly due to gas leakages. Check gas pressure with a refrigerant gauge manifold and inspect the heat exchanger and copper tubes for leakage points if pressure is low.
  • E
    Elizabeth FigueroaAug 18, 2025
    What causes evaporator coils to freeze on my LUKO Dehumidifier?
    • N
      Nathan BakerAug 18, 2025
      If the evaporator coils in your LUKO Dehumidifier are constantly frosting and dehumidification capacity is low, consider these possibilities: * There may be a refrigerant shortage due to leakages. * The air filter(s) might be too dirty, restricting airflow, or the duct connection is improper. * The filter drier could be blocked and require replacement.
  • T
    Tim KimAug 25, 2025
    How to troubleshoot a LUKO FD-S Dehumidifier fan that won't rotate?
    • K
      khuntAug 26, 2025
      If the fan in your LUKO Dehumidifier isn't rotating when the ventilation function is on, and the compressor starts and stops frequently, eventually ceasing to run, check the following: 1. Ensure there are no obstructions preventing the fan from rotating. 2. Check the Controller Pin No.2 for DC Voltage output of 0 – 10V. 3. Verify that the Controller Pin No. 1 (com/gnd) is properly connected. 4. If there's no DC output after checking the controller, replace it. 5. The fan bearing might be worn out. 6. The fan not running could lead to voltage protection. 7. The fan might be faulty.
  • L
    Lauren FreemanAug 30, 2025
    Why is the fresh air damper on my LUKO FD-S not working?
    • S
      sboydAug 31, 2025
      If the fresh air damper on your LUKO Dehumidifier isn't working, check these potential issues: 1. The connection to the damper may not be properly connected. 2. There might be a loose connection in the ventilation control circuit. 3. A loose connection in the damper power circuit could be the cause. 4. The fresh air damper itself might be defective.

Summary

LUKO Ducted Dehumidifier User Manual

Foreword

Manual Purpose

Provides information about the dehumidifier's structure, installation, principle, work process, and operating instructions.

Manual Content Overview

Details the dehumidifying control system, operating ways, maintenance, and failure elimination.

Copyright and Rights Reserved

States the reservation of rights for updating/explaining manual contents.

Important Safety Warning

Safety Introduction

General Safety Precautions

Details safety provisions and general liability during installation and operation.

Device Applications

Describes the wide usage of dehumidifiers in various settings and operating ranges.

Manual Scope

Outlines the scope of information covered in the manual.

Device Introduction

Compliance Standards

Specifies that the design meets IEC protection class IP 45 requirements.

Dehumidifier Structure Overview

Details the physical components and design of the dehumidifier.

Built-in Protection Devices

Explains various built-in safety features like start-up delay and high-temperature protection.

Product Component Diagram

Illustrates the FD-S series dehumidifier components and connections.

Installation Guide

Installation Overview

Introduces the chapter on installation methods, including duct system integration.

Delivery and Storage Guidelines

Provides guidelines for handling and storing the dehumidifier before installation.

Pre-Installation Inspection

Instructs on unpacking and checking the machine for any damage.

Safe Machine Moving

Details safe procedures for moving the dehumidifier, including lifting points.

Optimal Installation Location

Recommends optimal placement for operation, maintenance, and avoiding condensation.

Grounding and Leveling

Ensures the dehumidifier is installed horizontally and level during installation.

Ducting Connection Procedures

Provides guidelines for connecting ducting, including dimensions and notes on air-tightness.

Ducting Connection Example Diagram

Presents an example diagram illustrating ducting connection setup.

Service Access Space Requirements

Details the required space allocation for servicing the unit.

Drainpipe Connection Instructions

Explains how to connect the drainpipe for condensate water removal.

Electrical Connection Safety

Provides crucial safety notes and standards for electrical connections.

Sensor Installation Guidelines

Details the installation requirements for temperature and humidity detection devices.

Electrical Schematics

References the electric diagram for system understanding.

Internal Component Diagram

Shows a detailed diagram of the machine's electrical components.

Operating the Dehumidifier

Controller Terminal Connections

Lists and describes each terminal connection on the dehumidifier controller.

Controller Interface and Display

Explains the user interface of the controller, including display elements and controls.

General Parameter Settings

Details how to set general parameters like ON/OFF, Fan Speed, Air Damper, and Mode Change.

Factory Parameter Settings

Covers humidity/temperature settings, filter functions, and factory parameter adjustments.

Controller Symbols and Icons

Provides a reference guide for various symbols used on the controller display and in the manual.

Operating Modes and Functions

Details the different operating modes and functions of the dehumidifier.

Defrost Cycle and Alarms

Explains air damper control, defrost mechanisms, and alarm types.

Parameter Codes and Functions

Lists all configurable parameters, their codes, default values, precision, and ranges.

Monitoring Working Status

Describes how to monitor the operational status of the dehumidifier.

Error Codes and Meanings

Lists common error codes and their corresponding meanings.

Error Code Addressing

Provides addresses and data mapping for error codes.

Operational Safety Cautions

Highlights critical safety warnings regarding operation and handling.

Maintenance and Servicing

Maintenance Importance

Explains the importance and frequency of maintenance for long-term operation.

Filter Maintenance

Details the type of filters used and their cleaning/replacement schedule.

Fan Motor Checks

Describes maintenance requirements for the fan motor bearings.

Unit Cleaning Guidelines

Provides warnings and guidelines for cleaning the dehumidifier unit.

Seasonal Maintenance: Start of Season

Lists checks to perform before the start of the usage season.

Seasonal Maintenance: End of Season

Lists checks to perform after the end of the usage season.

Key Component Maintenance

Details procedures for maintaining specific components like filters and heat exchange core.

Routine Maintenance Schedule

References a table for routine inspection and maintenance procedures.

Periodic Inspection and Filter Cleaning

Covers periodic external inspections and cleaning of air filters.

Troubleshooting Common Issues

Appendix

Product Warranty Information

Details the warranty period, general conditions, and validity terms for the product.

LUKO FD-S Series Specifications

General IconGeneral
BrandLUKO
ModelFD-S Series
CategoryDehumidifier
LanguageEnglish

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