LG MFL67500701 Manual Download | Manualshive

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P/NO : MFL67500701

www.lg.com

INSTALLATION MANUAL

AIR CONDITIONER

• 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.

TYPE : 4-WAY CEILING CASSETTE (Cooling only Inverter)

ENGLISH

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Summary of Contents for MFL67500701

Page 1: ... 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 TYPE 4 WAY CEILING CASSETTE Cooling only Inverter ENGLISH ...

Page 2: ...condition er 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: ... a dedicated circuit There is risk of fire or electric 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 control box securely There is risk of fire or electric ...

Page 4: ...CAUTION Installation Always check for gas refrigerant leakage after installation or repair of product Low refrigerant levels may cause failure of product Install the drain hose to ensure that water is drained away properly A bad connection may cause 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 fr...

Page 5: ...RY 14 TEST RUNNING 14 Precautions in test running 14 Check the following items when installa tion is complete 14 Connection of power supply 14 Evaluation of the performance 15 Hand over 16 INSTALLATION INSTRUCTIONS 16 Installer Setting How to enter installer setting mode 17 Installer Setting Installer Setting Code Table 18 Installer Setting Setting Address of Central Control 18 Installer Setting C...

Page 6: ...way Ensure the spaces indicated by arrows from the wall ceiling or other obstacles The indoor unit must keep the maintenance space Unit mm Ceiling Ceiling Board Ceiling Board Above 2500 3600 or less 1000 or more 1500 or more 1500 or more 300 or less Floor 200 or more Please use an annexed sheet or the corru gated cardboard on the bottom of packing as installation sheet When using the bottom sheet ...

Page 7: ...e 840 Unit size CAUTION This air conditioner uses a drain pump Install the unit horizontally using a level gauge During the installation care should be taken not to damage electric wires Select and mark the position for fixing bolts and piping hole Decide the position for fixing bolts slight ly tilted to the drain direction after con sidering the direction of drain hose Drill the hole for anchor b...

Page 8: ...ient for drain Should be 1 50 1 100 THE INDOOR UNIT INSTALLATION 8 ENGLISH NOTE Avoid the following installation location 1 Such places as restaurants and kitchen where considerable amount of oil steam and flour is generated These may cause heat exchange efficiency reduction or water drops drain pump mal function In these cases take the following actions Make sure that ventilation fan is enough to...

Page 9: ...the following procedure to test the drain pump operation Connect the main drain pipe to the exterior and leave it provisionally until the test comes to an end Feed water to the flexible drain hose and check the piping for leakage Be sure to check the drain pump for normal operating and noise when electrical wiring is complete When the test is complete connect the flexi ble drain hose to the drain ...

Page 10: ...d drain piping add further 10mm to 30mm thick ness material Wiring Connection Open the control box cover and connect the Remote controller cord and Indoor power wires Remove the control box cover for electrical connection between the indoor and outdoor unit Use the cord clamper to fix the cord THE INDOOR UNIT INSTALLATION 10 ENGLISH Indoor unit Thermal insulator accessory Fastening band accessory ...

Page 11: ...not connect wiring of different thickness es to the power terminal block Slack in the power wiring may cause abnormal heat When connecting wiring which is the same thickness do as shown in the figure below 11 INSTALLATION ENGLISH Electricwire Round crimp style terminal Attach insulation sleeve WARNING Make sure that the screws of the termi nal are free from looseness ...

Page 12: ... Do not tighten the bolts completely The fixing screws are included in the indoor unit box Check the alignment of panel with the ceil ing Height can be adjusted using hanging bolts as shown in picture Insert the other two screws and tighten all screws com pletely 5 Fit the corner covers Front grille Coner cover Hook clip Hook INSTALLATION TO DECORATIVE PANEL ACCESSORY INSTALLATION TO DECORATIVE PA...

Page 13: ...rol box 9 Install the air inlet grille and filter on the panel Screw Air conditioner unit Decorative panel Fit the insulator this part and be careful for cool air leakage Good example Ceiling board Ceiling board Decorative panel Air Cool air leakage no good Bad example Air conditioner unit CN VANE 1 2 CN DISPLAY 13 INSTALLATION TO DECORATIVE PANEL ACCESSORY ENGLISH CAUTION Install certainly the de...

Page 14: ...h Is the heat insulation complete refrigerant and drain piping Is there any leakage of refrigerant Is the remote controller switch operated Is there any faulty wiring Are not terminal screws loosened M4 118N cm 12kgf cm M5 196N cm 20kgf cm M6 245N cm 25kgf cm M8 588N cm 60kgf cm Connection of power supply Connect the power supply cord to the inde pendent power supply Circuit breaker is required Op...

Page 15: ...urn out of the wires Specification of power source Confirm that electrical capacity is suffi cient Be sure that the starting voltage is main tained at more than 90 percent of the rated voltage marked on the name plate Confirm that the cable thickness is as specified in the power sources specifica tion Particularly note the relation between cable length and thickness Never fail to equip a leakage b...

Page 16: ...ON Installer setting mode is to set the detail function of the remote controller If the installer setting mode is not set correctly it can cause problems to the product user injury or property damage This must be set by an certificated installer and any installation or change that is carried out by a non certificated person should be responsible for the results In this case free service cannot be ...

Page 17: ...he product turn off the power then turn it back on after 1 minute Auxiliary heater This function is only applied to models with Auxiliary Heater function being activated Installer Setting Installer Setting Code Table No Function Function Code Setting Value Remote Controller LCD 0 Mode Override 0 0 Set to Master 1 Set to Slave 1 Ceiling Height Selection 1 1 Standard 2 Low 3 High 4 Super High 2 Grou...

Page 18: ...e and method can differ by the indoor unit type 3 Reset the remote controller to use the general operation mode 1 With the MODE button pressed press the RESET button 2 By using the temperature setting button set the indoor unit address Setting range 00 FF 3 After setting the address press the ON OFF button toward the indoor unit 1 time 4 The indoor unit will display the set address to complete the...

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