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P/NO : MFL67343001

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 : 4WAY CEILING CASSETTE

MODEL :  ATNH12GPLE1 [UTN12WH]
 ATNH18GPLE1 

[UTN18WH]

 ATNH21GNLE1 

[UTN21WH]

ENGLISH

Summary of Contents for ATNH12GPLE1

Page 1: ...stalling 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 4WAY CEILING CASSETTE MODEL ATNH12GPLE1 UTN12WH ATNH18GPLE1 UTN18WH ATNH21GNLE1 UTN21WH 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: ...nce on 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 ele...

Page 4: ...duct 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 a...

Page 5: ... to enter installer setting mode 24 Installer Setting Test Run Mode 25 Installer Setting Setting Address of Central Control 26 Installer Setting Thermistor 27 Installer Setting Ceiling Height Selection 28 Installer Setting Group Setting 29 Installer Setting Dry Contact Mode Setting 30 Installer Setting Celsius Fahrenheit Switching 31 Installer Setting Optional Function Setting TABLE OF CONTENTS EN...

Page 6: ...6 INSTALLATION PARTS Features Filter Air Outlet Air Inlet Wired Remote Controller ENGLISH INTRODUCTION ...

Page 7: ...ure Figure Name Screw driver Electric drill Measuring tape Knife Hole core drill Spanner Torque wrench Ohmmeter Hexagonal wrench Ammeter Gas leak detector Thermometer Horizontal meter Flaring tool set Manifold gauges Vacuum pump Name INSTALLATION ...

Page 8: ...m Installation of Indoor Outdoor Unit Selection of the best location Indoor unit There should not be any heat source or steam near the unit There should not be any obstacles to prevent the air circulation A place where air circulation in the room will be good A place where drainage can be easily obtained A place where noise prevention is taken into consideration Do not install the unit near the do...

Page 9: ...ted to the drain direction after considering the direction of drain hose Drill the hole for anchor bolt on the ceiling The hole size for four anchor bolts is Ø 14 5mm 40mm depth CAUTION This air conditioner uses a drain pump Horizontly install the unit using a level gauge During the installation care should be taken not to damage electric wires Ceiling board Level gauge Ceiling Unit mm 875 Ceiling...

Page 10: ...flow into the suction of the air conditioner Make enough distance from a cooking room to install the air conditioner in such a place where it may not suck in oily steam 2 Avoid installing air conditioner in such circumstances where cutting oil mist or iron powder is in suspension in factories etc 3 Avoid places where inflammable gas is generated flows in is stored or vented 4 Avoid places where su...

Page 11: ...cessory 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 15 18mm between the air conditioner bottom surface and the ceiling surface Wall Indoor Outdoor Slope gradient for drain Should be 1 50 1 100 The following parts is option Hanging Bolt W 3 8 or M10 Nut W 3 8 or M10 Spring Washer M10 Plate Washer M10 Drill the piping hole on the...

Page 12: ...he termi nal are free from looseness Electricwire Round crimp style terminal Attach insulation sleeve Connect wires of the same gauge to both sides INSTALLATION Wiring Connection Open the control box cover and connect the Remote controller cord and Indoor power wires Remote Controller Cable Connecting Cable Outdoor unit Indoor unit 1 L 2 N 3 1 L 2 N 3 POWER INPUT 1 L 2 N ...

Page 13: ... copper tube in a bar or die as indi cated dimension in the table above Burrs removal Completely remove all burrs from the cut cross section of pipe tube Put the end of the copper tube pipe to down ward direction as you remove burrs in order to avoid to let burrs drop in the tubing Putting nut on Remove flare nuts attached to indoor and outdoor units than put them on pipe tube having completed bur...

Page 14: ...it After completing the piping connection be sure to check if there is gas leakage in indoor and outdoor connection Vacuum drying After completing the piping connection exe cute vacuum drying for the connecting piping and the indoor unit The vacuum drying must be carried out using the service ports of both the liquid and gas side valves Inclined Inside is shining without scratches Smooth all round...

Page 15: ...emove the Corner covers of the panel Corner cover 3 Fit the panel on the unit by inserting hooks as shown in picture 5 Fit the corner covers 4 Insert two screws on diagonal corners of panel 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...

Page 16: ...marking on PCB is as Display connector CN DISPLAY Vane control connector CN VANE 1 2 8 Close the cover for control box 9 Fit the link on the panel as shown in pic ture The link is included in the front panel unit box CN VANE 1 2 CN DISPLAY Link 10 Attach the other side of link on the filter guide of inlet grille Install the air inlet grille and filter on the panel Link Filter guide ...

Page 17: ...n on the drain piping 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 CAUTION Install certainly the decorative panel Cool air leakage causes sweating Water drops fall Piping material Polyvinyl chloride pipe VP 25 and pipe fitt...

Page 18: ...ault However if it is operated for a long time in high humid atmosphere dew point tempera ture more than 23 C water drops are liable to fall In this case add heat insulation mate rial according to the following procedure Heat insulation material to be prepared Adiabatic EPDM or NBR with thickness 10 to 20mm Stick EPDM or NBR on all air conditioners that are located in ceiling atmosphere In additio...

Page 19: ...if there is a recla mation box Install the product so as not to make a gap with the wall side and to prevent shaking after the installation 2 Can set up Wired remote controller cable into three directions Setup direction the surface of wall recla mation upper right If setting up remote controller cable into upper and right side please set up after removing remote controller cable guide groove h Re...

Page 20: ...t to damage the inside components when separating 4 Please connect indoor unit and remote controller using connection cable 5 Please use extension cable if the distance between wired remote controller and indoor unit is more than 10m Wall Side Wall Side Wall Side Wall Side Connecting order Separating order Please check if connector is normally connected Connecting cable Indoor Unit side CAUTION Wh...

Page 21: ...as such as an outside wall behind the remote controller This remote controller is equipped with a seven segment LED display For proper display of the remote controller LED s the remote controller should be installed properly as shown in Fig 1 The standard height is 1 2 1 5 m from floor level Opera tion unit ZON E 1 2 3 4 Humi dify JET AUTO AUT O SWIN G OPE RATI ON FAN SPE ED Progr am set SUB FUNC ...

Page 22: ...or change that is carried out by a non certificated person should be responsible for the results In this case free service cannot be provided 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 Functio...

Page 23: ...e 06 03 V L 04 F L 7 Master Setting 07 00 Slave h If only Plus1 series models 00 Group setting 01 Master 01 Single setting 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 Da...

Page 24: ...sing 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 setup mode Please press more than 3 seconds for sure Please cancel the right and left of wind direction for RAC product 1 Setup fig...

Page 25: ...o 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 enters into ...

Page 26: ...for sure 1 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 Thermistor Table Temperature sensor selection Function 01 Remote controller Operation in remote controller temperature sensor 02 Indoor unit Operation in indoor unit temperat...

Page 27: ...ress more than 3 seconds for sure 1 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 Ceiling Height Selection Table Ceiling height setting is available only for some products Ceiling height of Super high function may not exist dependi...

Page 28: ... 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 1 If pressing button repeatedly it moves to master slave selection menu as picture below 2 5 Refer to the group control part for details When controlling in groups basic operation settings airflow strength weak medium strong lock setting of the remote c...

Page 29: ...ct 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 Installer Setting Dry Contact Mode Setting Dry contact function is the function that is possible to use only when dry contact equipment is separa...

Page 30: ...ller setter setup mode If pressing once shortly it enters into user setup mode Please press more 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 h ...

Page 31: ... 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 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...

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