LG LT-C548DLE2 Installation Manual Download Page 29

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Installation

Installation Manual

Function Code

09:01

Dry Contact setting vbalue

Dry contact mode setting

This function allows the Dry contact-indoor unit operate under Auto Run mode or Manual mode with
remote controller.

1. Press the

button for 4 seconds to

enter the installer setting mode until
timer segment display “01:01”.

2. Repeat pressing

button to select

Function code 08

3. Select Dry contact setting by

pressing button
(00: OFF, 01: ON)

4. Press

button to save or release

5. Press

button to exit or system will

automatically exit after 25 seconds
without any input.

* Please refer to dry contact manual for

more details.

Summary of Contents for LT-C548DLE2

Page 1: ...anual 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 CASSETTE P NO MFL67339903 ...

Page 2: ...st running 21 Optional operation 23 o Connecting cable o Pipes Gas side Liquid side o Hanging Bolt W 3 8 or M10 length 650mm o Insulated drain hose o Additional Drain hose Inner Dia 32mm o Horizontal meter o Screw driver o Electric drill o Hole core drill ø70mm o Flaring Tools set o Torque Wrenches o Hexagonal Wrench 4mm 5mm o Gas leak detector o Ownerʼs Manual o Installation Manual o Thermometer ...

Page 3: ... of fire or electric shock Install the panel and the cover of control box securely There is risk of fire or electric shock 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 modify or extend the power cable There is risk of fire or electric shock Do no...

Page 4: ...the telephone or turn switches on or off There is risk of explosion or fire If strange sounds or small or smoke comes from product Turn the breaker off or disconnect the power supply cable There is risk of electric shock or fire Stop operation and close the window in storm or hurricane If possible remove the product from the window before the hurricane arrives There is risk of property damage fail...

Page 5: ... soft cloth to clean Do not use harsh detergents solvents etc There is risk of fire electric shock or damage to the plastic parts of the product Do not touch the metal parts of the product when removing the air filter They are very sharp There is risk of personal injury Do not step on or put anyting on the product outdoor units There is risk of personal injury and failure of product Always insert ...

Page 6: ...mbol alerts you to hazards that may cause harm to the air conditioner This symbol indicates special notes NOTICE Introduction Symbols used in this Manual Features Anti bacteria Anti bacteria Anti bacteria Heat Pump Model Cooling Model Remote Controller Air Outlet Air Intake Signal Receptor Signal Receptor ...

Page 7: ...stallation Installation Tools Figure 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 Name ...

Page 8: ...rrows from the wall ceiling or other obstacles The indoor unit must keep the maintenance space 2 Outdoor unit If an awning is built over the unit to prevent direct sunlight or rain exposure be careful that heat radiation from the condenser is not restricted There should not be any animals or plants which could be affected by hot air discharged Ensure the spaces indicated by arrows from the wall ce...

Page 9: ...DLE2 Outdoor unit Indoor unit A B Outdoor unit Indoor unit A B A Oil trap If piping length is more than 5m Outdoor unit Indoor unit B CAUTION Rated performance for refrigerant line length of 7 5m Capacity is based on standard length and maximum allowance length is on the basis of reliability Improper refrigerant charge may result in abnormal cycle Oil trap should be installed every 10 meters NOTE ...

Page 10: ... that the ventilation fan for smoke collecting hood on a cooking table has sufficient capacity so that it draws oily steam which should not 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 pow...

Page 11: ...Remote Controller Installation Although the room temperature sensor is in the indoor unit the remote controller should be installed in such places away from direct sunlight and high humidity Installation of the remote controller Select places that are not splashed with water Select control position after receiving customer approval The room temperature sensor is built in the indoor unit This remot...

Page 12: ...of the case in the direction to install before the installation 4 After locating the wired remote controller installation board at the desired location screw the unit firmly When there is a buried box install the wired remote controller board to fit the buried box Use the screw provided 5 After fixing the top part of the remote controller to the installation board as shown in beside picture press ...

Page 13: ...reparation 5 Use the connecting cable to connect the indoor unit and the remote controller 6 When the distance between the wired remote controller and the indoor unit is 10m and above use the extension cable When installing the wired remote controller do not bury it in the wall It can cause damage in the temperature sensor Do not install the cable to be 50m or above It can cause communication erro...

Page 14: ...Cord Clip WARNING Make sure that the screws of the terminal are free from looseness The power cord connected to the outdoor unit should be complied with the following specifications Rubber insulation type H05RN F approved by HAR or SAA If the supply cord is damaged it must be replaced by a special cord or assembly available from the manufacturer or its service agent The connecting cable connected ...

Page 15: ...nector to meet the LOCAL REGULATION Main power source Switch box Refrigerant pipe Circuit Breaker Use circuit breaker or time delay fuse ELECTRICAL WIRING CONNECTING THE CABLE TO OUTDOOR UNIT 1 Remove the Cover control from the unit by loosening a screw Connect the wires to the terminals on the control board individually as following 2 Secure the cable onto the control board with the holder clampe...

Page 16: ...Putting nut on Remove flare nuts attached to indoor and outdoor units than put them on pipe tube having completed burr removal Not possible to put them on after flaring work 4 Flaring work Carry out flaring work using flaring tool as shown below Firmly hold copper tube in a bar or die as indicated dimension in the table above 5 Check n Compare the flared work with figure below n If flare is noted ...

Page 17: ... be sure to check if there is gas leakage in indoor and outdoor connection After completing the piping connection execute 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 CAUTION Use two wrenches and tighten with regular torque Outdoor unit Liquid side Flare connection Flare connection G...

Page 18: ...ch 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 Decorative panel fixing screws hexagon M5 screws Temporally fitting at 2 places Tightening about 10mm Control box cover Piping side Inlet Grille I...

Page 19: ...of water The air conditioner uses a drain pump to drain water Use 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 t...

Page 20: ... piping gas piping thick piping and drain piping add further 10mm to 30mm thickness material Indoor unit Thermal insulator accessory Fastening band accessory Refrigerant piping HEAT INSULATION 1 Wrap the connecting portion of indoor unit with the Insulation material and secure it with two Plastic Bands for the right pipings If you want to connect an additional drain hose the end of the drain outle...

Page 21: ...will be cancelled 18 minutes later automatically The test run is started by pressing the room temperature checking button and down timer button for 3 seconds at the same time To cancel the test run press any button After completing work be sure to measure and record trial run properties and store measured data etc Measuring items are room temperature outside temperature suction temperature blow ou...

Page 22: ...ide a circuit breaker switch between power source and the unit 3 The screw which fasten the wiring in the casing of electrical fittings are liable to come loose 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 ...

Page 23: ...lue Thermistor Ceiling Height Static Pressure Group Setting Override Setting Dry Contact Release 3Min Delay Zone State Convert Temp Plasma Heater Humidifier Elevation Grill Ventilation Kit j Some contents may not be displayed depending on the product function j Installer setting Code table No Function Code Value 1 Test Run 01 01 Set 2 Address Setting 02 00 FF Address Valu1 01 VeryLow 3 E S P Value...

Page 24: ...efer to the product manual Test Run mode 2 Press button to start j Cooling Ventilation Airflow direction mode will be operated during 18 minutes not according to room temperature j After running 18 minutes under test run mode system will automatically turn OFF j In case of duct type the Airflow UP DOWN function is not displayed j During test run mode receiving signal from wired remote controller w...

Page 25: ... segment display 01 01 2 Repeat pressing button to select Function code 02 3 Set Group No by pressing button 4 Move to Indoor No setting option by pressing button 5 Set Indoor No by pressing button 6 Press button to save or release 7 Press button to exit or system will automatically exit after 25 seconds without any input Address Setup of Central Control ...

Page 26: ...2TH 4 Press button to save or release 5 Press button to exit or system will automatically exit after 25 seconds without any input j Therefore system will use value that sensed from indoor unit or remote controller Temperature sensor location Function 01 Remote controller Operation in remote controller Temperature sensor 02 Indoor unit Operation in indoor unit temperature sensor 03 2 Thermistor Ope...

Page 27: ...02 Standard 03 High 04 Super high Low Decrease the indoor airflow rate 1 step from standard level Standard Set the indoor airflow rate as standard level High Increase indoor airflow rate 1 step from standard level Super high Increase indoor airflow rate 2 steps from standard level 4 Press button to save or release 5 Press button to exit or system will automatically exit after 25 seconds without an...

Page 28: ...n Please donʼt set this function in case of non group control 1 Press the button for 4 seconds to enter the installer setting mode until timer segment display 01 01 2 Repeat pressing button to select Function code 07 3 Select Master Slave by pressing button 00 Slave 01 Master 4 Press button to save or release 5 Press button to exit or system will automatically exit after 25 seconds without any inp...

Page 29: ...mote controller 1 Press the button for 4 seconds to enter the installer setting mode until timer segment display 01 01 2 Repeat pressing button to select Function code 08 3 Select Dry contact setting by pressing button 00 OFF 01 ON 4 Press button to save or release 5 Press button to exit or system will automatically exit after 25 seconds without any input Please refer to dry contact manual for mor...

Page 30: ... 20 air purify 21 dehumidifier 22 heater 23 ventilation kit 25 Elevation Grill 3 Select existing condition of each mode by pressing button 00 not installed 01 installed 4 Press button to save or release 5 Press button to exit or system will automatically exit after 25 seconds without any input Wired remote controller operation 1 Setting data of sub function as Air purify dehumidifier heater up dow...

Page 31: ...treatment on the heat exchanger 1 If the outdoor unit is to be installed close to the seaside direct exposure to the sea wind should be avoided Install the outdoor unit on the opposite side of the sea wind direction Selecting the location Outdoor Unit It should be strong enough like concrete to prevent the sea wind from the sea The height and width should be more than 150 of the outdoor unit It sh...

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