LG NHXM40C1A0 Installation Manual Download | Manualshive

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P/NO : MFL63750405

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 : MULTI TYPE CEILING CASSETTE

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Summary of Contents for NHXM40C1A0

Page 1: ...lation 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 MULTI TYPE CEILING CASSETTE ...

Page 2: ... Control Installation 10 5 Group control 12 6 Wiring Connection 13 7 Installation of Decoration Panel 14 8 Indoor Unit Drain Piping 16 1 Installer Setting How to enter installer setting mode 19 2 Installer Setting Test Run Mode 21 3 Installer Setting Setting Address of Central Control 22 4 Installer Setting Thermistor 23 5 Installer Setting Ceiling Height Selection 24 6 Installer Setting Group Set...

Page 3: ...ow the instruction Safety Precautions Installation Always install a dedicated circuit and breaker Improper wiring or installation may cause fire or electric shock Use the correctly rated breaker or fuse There is risk of fire or electric shock Do not use a defective or underrated circuit breaker Use this appliance on a dedicated cir cuit There is risk of fire or electric shock For electrical work c...

Page 4: ... damage to the product Be sure the installation area does not deterio rate with age If the base collapses the air conditioner could fall with it causing property damage product failure and personal injury Do not let the air conditioner run for a long time when the humidity is very high and a door or a window is left open Moisture may condense and wet or damage furniture Use a vacuum pump or Inert ...

Page 5: ...t To avoid vibration or water leakage Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods It may cause a problem for your neighbors Use two or more people to lift and transport the product Avoid personal injury Do not install the product where it will be ex posed to sea wind salt spray directly It may cause corrosion on the product Corro sion ...

Page 6: ... where noise prevention is taken into consideration Do not install the unit near the door way Ensure the spaces indicated by arrows from the wall ceiling or other obstacles The indoor unit must keep the mainte nance space Selection of the best location Unit cm Ceiling Ceiling Board Ceiling Board 30 or more Above 250 330 or less 100 or more 50 or more 50 or more 30 or less Floor More than 30cm Unit...

Page 7: ...drain hose Drill the hole for anchor bolt on the wall Ceiling dimension and hanging bolt location The dimensions of the paper model for installation are the same as those of the ceiling opening dimensions Level gauge Ceiling Ceiling board Unit mm Unit mm Unit mm TC Chassis TQ TR Chassis TM TN TP Chassis 875 Ceiling opening 787 Hanging bolt bolt 684 Hanging bolt 671 875 Ceiling opening 840 Unit siz...

Page 8: ...here sulfurous acid gas or corrosive gas is generated 5 Avoid places near high frequency generators Thoroughly study the following installation locations 1 In such places as restaurants and kitchens considerable amount of oil steam and flour adhere to the turbo fan the fin of the heat exchanger and the drain pump resulting in heat exchange reduction spraying dispersing of water drops drain pump ma...

Page 9: ...y Hanging bolt W3 8 or M10 Nut W3 8 or M10 Nut W3 8 or M10 Spring washer M10 Air Conditioner body Keep the length of mm between the air conditioner bottom surface and the ceiling surface The following parts is option Hanging Bolt W 3 8 or M10 Nut W 3 8 or M10 Spring Washer M10 Plate Washer M10 CAUTION Tighten the nut and bolt to prevent unit falling Drill the piping hole on the wall slightly tilte...

Page 10: ...e guide groove h Remove guide groove with long nose Reclamation to the surface of the wall Upper part guide groove Right part guide groove Wall Side Wall Side Wall Side Wall Side Connecting order Separating order 3 Please fix remote controller upper part into the setup board attached to the surface of the wall as the picture below and then connect with setup board by pressing lower part Please con...

Page 11: ...5 or above CAUTION Direct Sun ray contact area 5feet 1 5meters no no no yes Fig 1 Typical locations for remote controller Since the room temperature sensor is in the remote controller the remote controller box should be installed in a place away from direct sunlight high humidity and direct supply of cold air to maintain proper space temperature Install the remote controller about 5ft 1 5m above t...

Page 12: ...ration of the product after completion of indoor unit power ʻOFFʼ and then ʻONʼ the power after 1 minutes elapsed sign up For ceiling type cassette and duct product group change the switch setting of the indoor PCB For wall mount type and stand type product change the master slave setting with the wireless remote controller Refer to wireless remote controller manual for detail When installing 2 re...

Page 13: ...he same gauge to both sides WARNING Make sure that the screws of the terminal are free from looseness Open the control box cover and connect the Remote controller cord and Indoor power wires Air inlet side view Control box cover Indoor power cord Remote controller cord Screws Power cord Remote control cord In Out connecting wire Control box cover ...

Page 14: ...each the key hole edge 4 Retighten completely two temporarily fixed screws and other two screws Total 4 screws 5 Connect the louver motor connector and display connector 6 After tightening these screws install the air inlet grille including the air filter The decoration panel has its installa tion direction Before installing the decoration panel always remove the paper template Decoration panel fi...

Page 15: ...g screws Hexagon M6 screw Air conditioner unit Decorative panel Push Decorative panel fixing screws hexagon M6 screws Temporarily fitting at 2 poles Tightening about 10mm Inlet Grille Inlet Grille Inlet Grille Key holes Louver motor Control box cover Cover Ratch pull Plasma filter ...

Page 16: ... 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 flexible drain hose to the drain port on the indoor unit Air conditioner unit Ceiling board Decorative panel Decorative panel Fit the insulator this part and be careful for cool air leakage Good example Air...

Page 17: ...should not be operated CAUTION For test run carry out the cooling operation firstly even during heating season If heating operation is carried out firstly it leads to the trouble of compressor Then attention must be paid Carry out the test run more than 5 minutes without fail Test run will be cancelled 18 minutes later automatically CHECK THE FOLLOWING ITEMS WHEN INSTALLATION IS COMPLETE After com...

Page 18: ...oose from vibrations to which the unit is subjected during the course of transportation Check them and make sure that they are all tightly fastened If they are loose it could give rise to burn out of the wires 4 Specification of power source 5 Confirm that electrical capacity is sufficient 6 Be sure that the starting voltage is maintained at more than 90 percent of the rated voltage marked on the ...

Page 19: ...sible for the results In this case free service cannot be provided CAUTION Function Code Value If pressing button long for 3 seconds it enters into remote controller setter setup mode If pressing once shortly it enters into user setup mode Please press more than 3 seconds for sure 1 When you enter the setting mode initially Function code is displayed on the bottom of the LCD screen 2 Some categori...

Page 20: ... 03 High 04 Very High 01 V H 02 F H 6 Static Pressure 06 03 V L 04 F L 7 Master Setting 07 00 Slave 01 Master 8 Override Setting 08 00 Slave 01 Master 9 Dry Contact 09 00 Auto Off 01 Auto On 10 Release 3 Min 10 01 Set Delay 11 Zone State 11 01 Variable 02 Fixed 12 Celsius 12 00 Celsius Optimized only for U S A Fahrenheit Switching 01 Fahrenheit 13 Zone Type 13 00 Zone Controller 01 Damper Controll...

Page 21: ... you press any kind of button Test Run mode will be released Function Code Set Press button to start 3 During the test run pressing the below button will exit the test run Select operation temperature up down wind flow control wind direction start stop button 4 If pressing button long for 3 seconds it enters into remote controller setter setup mode If pressing once shortly it enters into user setu...

Page 22: ...t Indoor No by pressing button 5 Press button to save 6 Pressing button will exit settings mode After setup it automatically gets out of setup mode if there is no button input for 25 seconds When exiting without pressing set button the manipulated value is not reflected 7 If entering into address setup mode by using button it indicates as picture below 2 If pressing button long for 3 seconds it en...

Page 23: ...y gets out of setup mode if there is no button input for 25 seconds When exiting without pressing set button the manipulated value is not reflected The function of 2TH has different operation characteristics according to the product Temperature sensor selection Function 01 Remote controller Operation in remote controller temperature sensor 02 Indoor unit Operation in indoor unit temperature sensor...

Page 24: ...settings mode After setup it automatically gets out of setup mode if there is no button input for 25 seconds When exiting without pressing set button the manipulated value is not reflected This function is to adjust FAN Airflow rate according to ceiling height For ceiling type product Ceiling height setting is available only for some products Ceiling height of ʻVery highʼ function may not exist de...

Page 25: ...tomatically gets out of setup mode if there is no button input for 25 seconds When exiting without pressing set button the manipulated value is not reflected 5 It is a function for settings in group control or 2 remote controller control Please donʼt set this function in case of non group control Remote controller Function Master Indoor unit operates based on master remote controller at group cont...

Page 26: ...n repeatedly it moves to remote controller dry contact mode setup menu as picture below 2 Pressing button will exit settings mode After setup it automatically gets out of setup mode if there is no button input for 25 seconds When exiting without pressing set button the manipulated value is not reflected 5 Dry contact function is the function that is possible to use only when dry contact equipment ...

Page 27: ...than 3 seconds for sure 1 Press button to exit or system will automatically exit after 25 seconds without any input 5 Repeat pressing button to select Function code 12 Ex Fahrengeit Setting 2 Select Temperature unit mode by pressing button 00 Celsius 01 Fahrenheit 3 Press button to save or release 4 This function is used for switching the display between Celsius and Fahrenheit Optimized only for U...

Page 28: ...more than 3 seconds for sure 1 If pressing button repeatedly it moves to the selected option function code as picture below 2 Pressing button will exit settings mode After setup it automatically gets out of setup mode if there is no button input for 25 seconds When exiting without pressing set button the manipulated value is not reflected 5 Function Plasma purification Electric heater Dehumidifier...

Page 29: ...Indoor PCB Indoor PCB Function Description Setting Off Setting On Default SW3 Group Control Selection of Master or Slave Master Slave Off SW4 Dry Contact Mode Selection of Dry Contact Mode Wired Wireless remote controller Selection of Manual or Auto operation Mode Auto Off ...

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