LG MFL50024826 Installation Manual Download Page 1 | Manualshive

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ENGLISH

P/NO : MFL50024826

INSTALLATION MANUAL

Applied(AHU)
EEV kit

AIR

CONDITIONER

www.lg.com

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.

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Summary of Contents for MFL50024826

Page 1: ...lg com 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 ...

Page 2: ...condi tioner is used for many hours Clean the air filter once every 2 weeks Dust and impurities collected in the air filter may block the air flow or weaken the cooling dehumidifying functions For your records Staple your receipt to this page in case you need it to prove the date of purchase or for warranty purposes Write the model number and the serial number here Model number Serial number You c...

Page 3: ... use a power cord a plug or a loose socket which is damaged Otherwise it may cause a fire or electrical shock For electrical work contact the dealer seller a qualified electrician or an Authorized Service Center Do not disassemble or repair the product There is risk of fire or electric shock Always ground the product There is risk of fire or electric shock Install the panel and the cover of contro...

Page 4: ...e water leakage Keep level even when installing the product To avoid vibration or water leakage Do not install the product where the noise or hot air from the outdoor unit could damage the neigh borhoods It may cause a problem for your neighbors Do not install the product where it will be exposed to sea wind salt spray directly It may cause corrosion on the product Corrosion particularly on the co...

Page 5: ...E 7 SUPPLIES 8 PART DESCRIPTION 8 EEV Kit PRLK048A0 PRLK096A0 9 EEV KIT INSTALLATION 9 Mechanical Installation 12 Electrical Work 13 THERMISTORS INSTAL LATION 13 Pipe thermistors Installation 16 TROUBLESHOOTING TABLE OF CONTENTS TABLE OF CONTENTS ENGLISH ...

Page 6: ...lti V 3 AHU Comm Kit PRCKA0 PRDCA0 4 AHU EEV Kit PRLK048A0 PRLK096A0 5 Field piping Field supply Wiring connections 6 Comm kit wiring Power supply and communication be tween control kit and outdoor unit 7 Pipe thermistors EBG61287703 EBG61287704 Evaporator In Out control of Air Han dling Unit 8 Room thermistor EBG36949303 Return air control 9 Remote controller PQRCUSA0 Optional accessory 10 Dry co...

Page 7: ...nents AHU EEV Kit Installation manual P NO AJT57850801 PRLK048A0 AJT57850802 PRLK096A0 MFL50024803 Shape Quantity EA 1 1 W D H Model Name Weight kg Dimension mm POWER NET Gross W D H PRLK048A0 3 1 3 6 217 83 404 DC 12V PRLK096A0 3 3 3 8 217 83 404 DC 12V ...

Page 8: ...t PRLK048A0 PRLK096A0 1 2 5 3 4 4 2 8 7 6 PART DESCRIPTION No Part Name Quantity EA 1 Panel upper 1 2 Bracket 3 3 Terminal box 1 4 Cable gland 2 5 Insulator tube 1 6 EEV assembly EEV Strainer Tube 1 7 Support tie wrap 2 8 Panel base 1 ...

Page 9: ... by unscrewing the screw 4EA 2 Drill 4 holes on correct position and fix the EEV Kit box securely with 2 screws M5 Field sup ply at the A position and then fix the EEV Kit box with other screws M5 2EA at the B position 190 mm Provided holes Ø6 M5x2EA Pipe size Ø12 7 mm 1 2 B A A B 6mm Ø12 Hole 206 mm 222 mm ...

Page 10: ...ensa tion dripping Finish the connection with tape eventually E D C 3EA F F B A A Inlet coming from the outdoor unit B Outlet to evaporator C Pipe fixing bracket 3EA D Pipe insulation E EEV Assembly F Field pipe Inlet Outlet When brazing wrap wet cloth round this part CAUTION Make sure to cool the filters and EEV body with a wet cloth and make sure the body tem perature does not exceed 120 C durin...

Page 11: ...gf cm2 The test must be done with the service valve of the outdoor unit closed and the gas must be pressurized at the liquid pipe gas pipe and high low pressure common pipe of the outdoor unit and the pressure of the nitrogen gas must not drop for 24 hours Make sure that field pipes are fully insulated Field pipe insulation must reach up to the pipe insulation D Make sure that there is no gap betw...

Page 12: ... wiring and insulation is not squeezed when closing the EEV Kit box cover 6 Close the EEV Kit box cover 4 x M4 A Terminal box cover B Cable gland C Terminal connector D Support tie wrap E Electric wiring work Field supply 6 wires A B D E B R R D B L O R Y L W H EEV C Detail E NOTE 1 BR BROWN 2 RD RED 3 BL BLUE 4 OR ORANGE 5 YL YELLOW 6 WH WHITE B R R D B L O R Y L W H EEV Field work Field connect ...

Page 13: ...n the coldest pass the heat exchanger contact your heat exchanger dealer 2 Pipe_Out EBG61287704 Install the thermistor at the outlet of the heat exchanger as close as possible to the heat ex changer Evaluation must be done to check if the evaporator is protected against freeze up Execute test operation and check for freeze up 1 Pipe_In Suction pipe 2 Pipe_Out Discharge pipe 1 2 Air Handling Unit L...

Page 14: ...ing of the thermistor may result in bad contact and incorrect temperature measurement Fixation of the pipe thermistors Field work 1 Fix the thermistor with insulating aluminum tape Field supply in order to ensure a good heat transference 2 Put the supplied piece of rubber around the thermistor EBG61287703 04 in order to avoid loosening of the thermistor after some years 3 Fasten the thermistor wit...

Page 15: ...ter accumulation on down of the thermis tor For sensing the evaporator s temp in thermistor Put the top of the thermistors on the evaporator this is the most sensitive point of the thermistor Water 45 2 1 1 Most sensitive point of the thermistor 2 Maximize the contact Pipe Thermistors Installation ...

Page 16: ...NG ENGLISH TROUBLESHOOTING Problem Cause Remedy AHU EEV Kit does not work Wiring is wrong Check the electrical connection of the EEV Kit Piping is wrong Check the piping connection between the EEV Kit and outdoor unit ...

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