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LG PRCKA0 Installation Manual

Ahu control kit
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INSTALLATION MANUAL

AHU Control Kit
• Please read this installation manual completely before installing the product.
• Installation work must be performed in accordance with the national wiring
standards by authorized personnel only.
• Please retain this installation manual for future reference after reading it
thoroughly.
MODEL : PRCKA0
P/NO : MFL50024801
www.lg.com

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  Summary of Contents for LG PRCKA0

  • Page 1: Installation Manual

    • Please read this installation manual completely before installing the product. • Installation work must be performed in accordance with the national wiring standards by authorized personnel only. • Please retain this installation manual for future reference after reading it thoroughly. MODEL : PRCKA0 www.lg.com P/NO : MFL50024801...
  • Page 2: Tips For Saving En

    TIPS FOR SAVING ENERGY TIPS FOR SAVING ENERGY Here are some tips that will help you minimize the power consumption when you use the air conditioner. You can use your air conditioner more efficiently by referring to the instructions below: •...
  • Page 3: Important Safety Instructions

    IMPORTANT SAFETY INSTRUCTIONS IMPORTANT SAFETY INSTRUCTIONS READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE. Always comply with the following precautions to avoid dangerous situations and ensure peak performance of your product WARNING It can result in serious injury or death when the directions are ignored CAUTION It can result in minor injury or product damage when the directions are ignored WARNING...
  • Page 4: Table Of Contents

    TABLE OF CONTENTS TIPS FOR SAVING EN- ERGY IMPORTANT SAFETY INSTRUCTIONS INSTALLATION SCENE SUPPLIES OPTIONAL ACCES- SORIES PART DESCRIPTION Control Kit (PRCKA0) BEFORE INSTALLA- TION CONTROL KIT INSTAL- LATION Mechanical installation Electric Wiring Work Dry contact connection_optional ac- cessory TEST OPERATION...
  • Page 5: Installation Scene

    (Heating) Parts and components Name Remarks Air Handling Unit Field supply Outdoor Unit Multi_V AHU Control Kit(PRCKA0) AHU EEV Kit(PRLK048A0) Field piping Field supply Wiring connections (Power supply and communication be- Control kit wiring tween control kit and outdoor unit)
  • Page 6: Supplies

    Supplies SUPPLIES PRCKA0 Compo- Installation Capacity setting AHU Control Kit Room thermistor Pipe thermistors nents manual option PCB EBG58712427 EBR52358907/09/10/ P/NO AJT57850901 EBG61106821 MFL50024801 11/12/13/14/15/16/17 EBG58712428 Shape Quantity 2(Each 1) 10(Each 1) (EA) Weight(kg) Dimension(mm) Model POWER Name Gross PRCKA0...
  • Page 7: Optional Accessories

    Optional Accessories OPTIONAL ACCESSORIES Accessories Components Remote controller Dry contact PCB Model name PQRCUSA0 PQDSBNGCM0 Shape * For further details of the accessories, refer to the manual provided at the time of purchasing the accessories.
  • Page 8: Part Description

    Part Description PART DESCRIPTION Control Kit (PRCKA0) CN-OPTION Part Name Quantity(EA) Plastic bolt Control box cover Main PCB Option PCB(36k) Main PCB case Terminal block (communication) Terminal block (POWER Supply) Panel Support Tie wrap Control box case Cable gland(2type) Bracket...
  • Page 9: Before Installation

    Before Installation BEFORE INSTALLATION CAUTION ■ Don't install or operate the unit in rooms mentioned below. ① Where mineral oil, like cutting oil is present. ② Where the air contains high levels of salt such as air near the ocean. ③...
  • Page 10 SET UNIT ADDRESS CAUTION Selection of Evaporator(Air Handling Unit) See table below for applicable units Selecting the capacity setting 'Option PCB'(Accessory) according to the capacity mentioned below. - The corresponding capacity setting 'Option PCB' needs to be selected depending on the need capacity.
  • Page 11: Control Kit Installation

    Control Kit Installation CONTROL KIT INSTALLATION Mechanical installation . Remove the Control Kit box cover by unscrewing the plastic bolt(4EA). . Drill 4 holes on correct position and fix the Control Kit box securely with 4 screws(Field supply) through the provided holes Ø4.5 mm(Reference the length of the holes Ø4.5) 298 mm Provided holes Ø4.5 mm (4EA)
  • Page 12: Electric Wiring Work

    Control Kit Installation Electric Wiring Work Circuit diagram . For electric wiring, refer to figure 'Circuit diagram' mentioned below. CONNECTOR LOCATION POINT FUNCTION NUMBER AC POWER LINE INPUT FOR INDOOR CN-POWER AC POWER SUPPLY CONTROLLER CONNECTION BETWEEN INDOOR AND CN-COM COMMUNICATION OUTDOOR CN-ROOM...
  • Page 13 Control Kit Installation Connection of the wires . For connection to outdoor unit and to controller (Field supply) : Pull the wires inside through the cable gland and close that's nut firmly in order to ensure a good pull relieve and water protection. .
  • Page 14 Control Kit Installation CAUTION • All field supplied parts and materials and electric works must be conform to local codes. • Use copper wire only. • All wiring must be performed by an authorized electrician. • A main switch or other means for disconnection, having a contact separation in all poles, must be incorporated in the fixed wiring in accordance with relevant local and national legis- lation.
  • Page 15: Dry Contact Connection_Optional Ac

    Control Kit Installation Dry contact connection_optional accessory Dry contact installation location ❈ Applicable dry contact model - PQDSBNGCM0 . Using screw(4EA), fix the dry contact on the side panel. Dry contact PCB CN-INDOOR1 CN-INDOOR2 Dry Contact PCB Dry Contact PCB Local controller Signal Field work...
  • Page 16: Test Operation

    Test Operation TEST OPERATION Before test operation, be sure all information is understood completely, and follow the guideline of manual. • Check the refrigerant piping of outdoor unit. (Additional charging of the refrigerant ,the maximum allowed piping length and open the stop valve) * For more detailed information of that, refer to the installation manual supplied with the out- door unit.
  • Page 17: Troubleshooting

    Troubleshooting TROUBLESHOOTING Problem Problem Remedy Check the electrical connection and voltage of the No power supply power supply. AHU Control Kit Check the electrical connection of the Control kit does not work Wiring is wrong (Refer to the circuit diagram of the Control Kit) AHU Control Kit is broken Check the electrical and mechanical part.