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INSTALLATION AND MAINTENANCE MANUAL
Serie
LIBERTY PRO OUTDOOR UNIT
Edition
R00
Models
DOSF-14KDB
DOSF-28KDB
DOSF-18KDB
DOSF-36KDB
DOSF-21KDB
DOSF-42KDB
DOSF-24KDB

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Table of Contents
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Summary of Contents for Daitsu LIBERTY PRO DOSF-14KDB

  • Page 1 INSTALLATION AND MAINTENANCE MANUAL Serie LIBERTY PRO OUTDOOR UNIT Edition Models DOSF-14KDB DOSF-28KDB DOSF-18KDB DOSF-36KDB DOSF-21KDB DOSF-42KDB DOSF-24KDB...
  • Page 2: Table Of Contents

    In line with the company’s policy of continual product improvement, the aesthetic and dimensional characteristics, technical data and accessories of this appliance may be changed without notice. CONTENTS GENERAL INFORMATION Conformity And Range The Refrigerant Warning The Instructions Before Use Name of Parts Outdoor Unit Working Temperature Range Electrical Connections...
  • Page 3: Conformity And Range

    EXPLANATION OF SYMBOLS GENERAL INFORMATION Indicates a hazardous situation that, if not avoided, will DANGER result in death or serious injury. Indicates a hazardous situation that, if not avoided, could WARNING result in death or serious injury. Indicates a hazardous situation that, if not avoided, may CAUTION result in minor or moderate injury.
  • Page 4: General Information

    THE REFRIGERANT GENERAL INFORMATION Please read this operating manual carefully before operating the unit. to the material objects for reference. The Refrigerant To realize the function of the air conditioner unit, a special refrigerant circulates lead to explosion . It can Compared to common refrigerants, R32 is a nonpolluting refrigerant with no lower.
  • Page 5: Warning

    GENERAL INFORMATION WARNING Operation and Maintenance This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved.
  • Page 6 GENERAL INFORMATION WARNING If the air conditioner operates under abnormal conditions, it may cause malfunction,electric shock or fire hazard. When turning on or turning off the unit by emergency operation switch, please press this switch with an insulating object other than metal. Do not step on top panel of outdoor unit, or put heavy objects.
  • Page 7 GENERAL INFORMATION WARNING The air conditioner is the first class electric appliance. It must be properly grounding with specialized grounding device by a professional. Please make sure it is always grounded effectively, otherwise it may cause electric shock. The yellow-green wire in air conditioner is grounding wire, which can't be used for other purposes.
  • Page 8: The Instructions Before Use

    THE INSTRUCTIONS BEFORE USE GENERAL INFORMATION WARNING When having a burning smell or The power supply must adopt the Never cut off or damage power ★ ★ ★ smoke,please turn off the power special circuit that with air switch cables and control wires. If the supply and contact with the ser- protection and assure it has enou- power cable and signal control...
  • Page 9: Name Of Parts

    NAME OF PARTS GENERAL INFORMATION DOSF-14KDB, DOSF-18KDB DOSF-21KDB, DOSF-24KDB, DOSF-28KDB WARNING Be sure to cut off the power supply before cleaning the air conditioner; otherwise electric shock might happen. your air conditioner in any case. Volatile liquids such as thinner or gasoline will cause damage to the appearance of air conditioner.
  • Page 10: Electrical Connections

    ELECTRICAL CONNECTIONS INSTALLER DOSF-14KDB, DOSF-18KDB 1. Remove the handle at the right side plate of the An all-pole disconnection switch having a contact outdoor unit (one screw). separation of at least 3mm in all pole should be connected in fixed wiring. Remove the cable clamp, connect the power connection cable with the terminal at the row of Wrong wire connection may cause malfunction of...
  • Page 11 ELECTRICAL CONNECTIONS INSTALLER DOSF-21KDB, DOSF-24KDB 1. Remove the handle at the right side plate of the An all-pole disconnection switch having a contact outdoor unit (one screw). separation of at least 3mm in all pole should be connected in fixed wiring. Remove the cable clamp, connect the power connection cable with the terminal at the row of Wrong wire connection may cause malfunction of...
  • Page 12 ELECTRICAL CONNECTIONS INSTALLER DOSF-28KDB 1. Remove the handle at the right side plate of the An all-pole disconnection switch having a contact outdoor unit (one screw). separation of at least 3mm in all pole should be connected in fixed wiring. Remove the cable clamp, connect the power connection cable with the terminal at the row of Wrong wire connection may cause malfunction of...
  • Page 13: Installing The Outdoor Unit

    INSTALLING THE OUTDOOR UNIT INSTALLER Location Install the drain fitting and the drain hose (for model with heat pump only) Use bolts to secure the unit to a flat, solid floor. Condensation is produced and flows from the out- When mounting the unit on a wall or the roof, make door unit when the appliance is operating in the sure the support is firmly secured so that it cannot heating mode.
  • Page 14: Maintenance

    MAINTENANCE INSTALLER Use suitable instruments for the refrigerant R32. Do not use any other refrigerant than R32. Do not use mineral oils to clean the unit. INSTALLATION DIMENSION DIAGRAM INSTALLER The installation must be done by trained and qualified service personnel with reliability according to this manual.
  • Page 15: Check After Installation

    CHECK AFTER INSTALLATION INSTALLER Check Items Problems Owing to Improper Installation Is the installation reliable? The unit may drop, vibrate or make noises May cause unsatisfactory cooling (heating) Has the gas leakage been checked? effect Is the thermal insulation of the unit May cause condensation and water dropping sufficient? Is the drainage smooth?
  • Page 16: Safety Operation Of Flammable Refrigerant

    SAFETY OPERATION OF FLAMMABLE REFRIGERANT INSTALLER Qualification requirement for installation and maintenance man All the work men who are engaging in the refrigeration system should bear the valid certification awarded by the authoritative organization and the qualification for dealing with the refrigeration system recognized by this industry. If it needs other technician to maintain and repair the appliance, they should be supervised by the person who bears the qualification for using the flammable refrigerant.
  • Page 17: Specialist's Manual

    SPECIALIST’S MANUAL INSTALLER The following checks shall be applied to installations using flammable refrigerants: – the charge size is in accordance with the room size within which the refrigerant containing parts are installed; – the ventilation machinery and outlets are operating adequately and are not obstructed; –...
  • Page 18 SPECIALIST’S MANUAL INSTALLER adverse environmental effects. The check shall also take into account the effects of aging or continual vibration from sources such as compressors or fans. Detection of flammable refrigerants Under no circumstances shall potential sources of ignition be used in the searching for or detection of refrigerant leaks.
  • Page 19 Eurofred S.A. Marqués de Sentmenat 97 08029 Barcelona www.eurofred.es...

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