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Installation Manual

Installation of Indoor, Outdoor Unit

Outdoor

Indoor

Main

power source

Switch box

Circuit Breaker

Main terminal

board

Control terminal

board

Cord

clamper

Side panel

view

Remote
control cord

Connection
cord between
the indoor unit
and the
outdoor unit

Motor PCB

Main PCB

Control box cover

(On which the Electric

Wiring Connection is put)

ELECTRICAL WIRING

Indoor unit

• Remove the side panel for electrical

connection between the indoor and
outdoor unit.

• Use the cord clamper to fix the cord.

Perform the electrical wiring work according to the
electrical wiring connection.

• All wiring must comply with local

requirements.

• Select a power source that is capable of

supplying the current required by the air
conditioner.

• Use a recognized circuit breaker between

the power source and the unit. A
disconnection device to adequately
disconnect all supply lines must be fitted.

• Capacity of circuit breaker recommended by

authorized personnel only

WIRING CONNECTION

Outdoor unit

• Remove the side panel for wiring

connection.

• Use the cord clamper to fix the cord.
• Earthing work

- Case 1 :Terminal block of Outdoor

Unit have mark.

• Connect the cable of diameter

1.6mm

or more to the earthing

terminal provided in the control
box and do earthing.

- Case 2 :Terminal block of Outdoor

Unit don't have mark.

• Connect the cable of diameter

1.6mm

or more, to the panel of

control box, marked as and
fasten with earth screw.

Please check !!

Capacity(Btu/h)

Phase(Ø)

Circuit Breaker

42 k

35A

48 k

35A

55 k

35A

Содержание B42AWYN762

Страница 1: ... 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 ...

Страница 2: ...Air Purging and Evacuation 22 Group Control 24 Two Thermistor system 24 Continuous Fan Operation 25 External Static Pressure air Flow 26 Accessory Installation Guide 28 Installation guide at the Seaside 34 Installation Requirements Required Parts Required Tools Four Type A screws Connecting cable Level Screw driver Electric drill Hole core drill ø70mm Pipes Gas side Ø15 88 Ø19 05mm Liquid side Ø9 ...

Страница 3: ...ctrical 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 shock Always install a dedicated circuit and breaker Improper wiring...

Страница 4: ...ric 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 failure of product or electric shock Do not open the inlet grill of the product during operation Do not touch the electrostatic filter if the unit is so equipped There is risk of physical injury electric shock or pr...

Страница 5: ...oft 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 th...

Страница 6: ...ner Installation Parts Provided Remote Controller Air intake vents Air outlet vents Piping rain hose Connecting wire Control over Connection pipe Drain hose Connecting wire Air outlet vents Side Rear Air intake vents Introduction Features ...

Страница 7: ...oor unit The place where the unit is not affected by an electrical noise The place where air circulation in the room will be good There should not be any heat source or steam near the unit 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 co...

Страница 8: ...additional charge of the refrigerant which according to the table If 55 kBtu h Model is installed at a distance of 50m 2 100g of refrigerant should be added 50 15 x 60g 2 100g Capacity is based on standard length and maximun allowance length is on the basis of reliability Improper refrigerant charge may result in abnormal cycle Oil trap should be installed every 5 7 meters Gas Liquid Standard Max ...

Страница 9: ... of the unit A place where the unit can withstand its vibration A place where service can be easily performed CASE 1 POSITION OF SUSPENSION BOLT CASE 2 POSITION OF SUSPENSION BOLT Unit mm A B C D E F G H I J K L 42 k 1362 1320 840 287 400 441 582 882 1373 315 366 40 48 k 1362 1320 840 287 400 441 582 1182 1373 315 366 40 55 k 1362 1320 840 287 400 441 582 1182 1373 315 366 40 Dimension Capacity Bt...

Страница 10: ...0 to 1 100 Prevent any upward flow or reverse flow in any part 10mm or thicker formed thermal insulator shall always be provided for the drain pipe 2 Safety drain There is no need to provide a trap for the safty drain If the safty drain pipe is connected to the main drain pipe make the connection below the trap on the main drain pipe 1 Install declination of the indoor unit is very important for t...

Страница 11: ...ened THERMAL INSULATION TEST AND CHECK Make sure that there is no clearance here Overlap with thermal insulator for piping Thermal insulator for refrigerant pipe Local supply Thermal insulator for piping Local supply Hose crip for thermal insulator Local supply Union for liquid pipe Refrigerant pipe and thermal insulator Local supply Union for gas pipe Thermal insulator for refrigerant pipe Local ...

Страница 12: ... CONTROLLER INSTALLATION ELECTRICAL WIRING TO THE INDOOR UNIT Make sure that wire and terminal numbers are matched on unit side and remote controller side Main board CN REMO The maximum length of the cord is 100m If the length of the cord exceeds 50m use a wire size greater than 0 5mm2 Remote controller CN REMO The position of the fixing screws Wall Installation paper Fixing the remote controller ...

Страница 13: ...tion at an average temperature Do not install the remote controller where it can be affected by Drafts or dead spots behind doors and in corners Hot or cold air from ducts Radiant heat from sun or appliances Concealed pipes and chimneys Uncontrolled areas such as an outside wall behind the remote controller This remote controller is equipped with a seven segment LED display For proper display of t...

Страница 14: ... that can support the weight of unit and withstand its vibrations Keep a maintenance space REFRIGERANT PIPING INSTALLATION OF OUTDOOR UNIT Perform the work according to the Service Manual or Installation Guide Select a location that satisfies the following conditions Install the unit firmly in place Use two spanners when connecting the refrigerant pipe to the unit Make a bend with a radius as larg...

Страница 15: ... a power source that is capable of supplying the current required by the air conditioner Use a recognized circuit breaker between the power source and the unit A disconnection device to adequately disconnect all supply lines must be fitted Capacity of circuit breaker recommended by authorized personnel only WIRING CONNECTION Outdoor unit Remove the side panel for wiring connection Use the cord cla...

Страница 16: ...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 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 Check Compare the flared work with figure If flare is noted to be defective cut off th...

Страница 17: ...unction brazing also serves to connect straight pipes generally using ready made sockets While brazing protect piping against heat with wet cloth to avoid damaging valve packing or burning thermal insulator with burner heat While brazing blow inert gas nitrogen gas or carbonic gas to prevent formation of oxidation film in copper piping otherwise the refrigerant circuit will clog Refrigerant piping...

Страница 18: ...igure 1 When connecting in a downward direction knock out the knockout hole of the base pan refer to figure 2 Preventing foreign objects from entering Figure3 Plug the pipe through holes with putty or insulation material procured locally to stop up all gaps as shown in the figure 3 Insects or small animals entering the outdoor unit may cause a short circuit in the electrical box Gas side piping Bi...

Страница 19: ...ble connected to the outdoor unit should be complied withIEC 60245 or HD 22 4 S4 Rubber insulated cable type 60245 IEC 66 or H07RN F If the supply cable is damaged it must be replaced by the manufacturer its service agent or similarly qualified persons in order to avoid a hazard The connecting cable connected to the indoor unit and outdoor unit should be complied with IEC 60245 or HD 22 4 S4 Rubbe...

Страница 20: ...e 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 name plate 7 Confirm that the ca...

Страница 21: ... wall Form a trap to prevent water entering the room and electrical part 3 Fix the piping onto the wall by saddle or equivalent Trap is required to prevent water from entering into electrical parts Taping Drain hose Pipings Connecting cable Power supply cord Seal a small opening around the pipings with gum type sealer Seal a small opening around the pipings with gum type sealant Trap Seal a small ...

Страница 22: ...th pressure gauges and dry nitrogen gas cylinder to this service port with charge hoses CAUTION Be sure to use a manifold valve for leakage test If it is not available use a stop valve for this purpose The Hi knob of the manifold valve must always be kept close Pressurize the system to no more than 427 P S I G with dry nitrogen gas and close the cylinder valve when the gauge reading reached 427 P ...

Страница 23: ...ld valve and stop the vacuum pump Finishing the job 1 With a service valve wrench turn the valve stem of liquid side valve counter clockwise to fully open the valve 2 Turn the valve stem of gas side valve counter clockwise to fully open the valve 3 Loosen the charge hose connected to the gas side service port slightly to release the pressure then remove the hose 4 Replace the flare nut and its bon...

Страница 24: ... BR GND YL SIGNAL BR GND YL SIGNAL BR GND Remote Controller Figure 1 Figure 2 Group Control S W GR 1 1 Master 2 Slave 2 Wired Remote Controller 1 ON 2 3 4 5 6 7 8 Main PCB Main PCB Set the slide switch in the wired remote contorller as SLAVE positon Figure1 If the main PCB is not directly connected to the wired remote controller set the option switch 6 in the mian PCB as ON position Figure2 Operat...

Страница 25: ...CB as below guide line Option Switch 4 ON OFF Continuous Fan Operation ON ON Continuous Fan Operation OFF OFF Function 1 ON Option Switch 2 3 4 5 6 7 8 Indoor PCB Indoor PCB Indoor PCB CAUTION Continuous fan operation can cause unexpected cold air flow in hot start mode or defrost mode It is required to explain to the customer before setting this function ...

Страница 26: ...Outdoor Indoor Outdoor Capacities are tested in the following conditions NOTICE Remote Controller For Low E S P Mode For High E S P Mode S W 2 1 1 Low Low E S P 2 Standard high E S P 3 High high E S P 3 2 ZONE 1 ZONE 2 ZONE 3 ZONE 4 AUTO INDOOR REMO ZONE 1 ZONE 2 ZONE 3 ZONE 4 2TH REMO AUTO INDOOR 100 unit 10 unit 1Press the button 2Press the button 3Set the volume of each air flow Lo Med Hi by us...

Страница 27: ...nect CN POWER to power supplier Only AC 24V Connect CN DRY to dry contact controller Power supplier and dry contact controller are produced locally Tie the cables with the tie wraps and clamps Figure 2 Refer to dry contact installation manual for detailed installation method Dry contact Indoor PCB Control box Dry contact cover Control box cover C N I C C CN POWER CN DRY Screw Indoor PCB DC Dry con...

Страница 28: ...T DC PI485 Screw Screw Bracket Space for PI485 CN_CENTRAL WCN_P N WCN_P L PI485 PI485 PI485 Fix PI485 to the bracket in the outdoor control box Figure 2 Connect PI485 to outdoor PCB and central controller with cable Figure 1 3 Connect CN PWR to WCN_P N and WCN_P L Connect CN OUT to CN_CENTRAL Separate AC and DC line when connecting the cable to outdoor PCB Figure 3 Use the clip at the PCB case sid...

Страница 29: ...line hole when connecting the cable to Indoor PCB Fix the RF remote controller with adhesive tape at your desired location Tie the cables with tie wraps and clamps after intalling Refer to RF remote controller Installation manual for detailed installation metheod CN DISPLAY RF Remote controller Indoor PCB Control box Cable RF remote controller Double coated tape ...

Страница 30: ...and actuator Figure 2 Assemble the damper controller to indoor unit and then assemble cover of damper controller Set the slide switch in the wired remote contorller as 1 positon Figure 3 Refer to damper controller Installation manual for detailed installation metheod Remote controller Zone type selection 1 1 Zone new 2 2 Zone old S W 1 Power supply Damper controller Actuator Actuator Actuator Actu...

Страница 31: ...cover of the indoor unit remove the room temperature sensor in CN ROOM of the main PCB Insert the connector of remote sensor wire into CN ROOM Using the DC line hole when connecting the wire to Indoor PCB For using the two thermistor fuction the remote sensor should be installed from the wired remote controller as far as possible Refer to damper remote sensor manual for detailed installation methe...

Страница 32: ...master the others as slave Figure 1 The thermistor mode is operated by the wired remote controller set as master Wired remote controller Indoor PCB Cable Wired remote controller Remote Controller Group Control S W GR 1 1 Master 2 Slave 2 Figure 1 CAUTION Two wired remote controllers should be same model name otherwise it can cause unexpected problems For example Using PDRCUSA0 with PDRCUSA0 is pro...

Страница 33: ...the unit On Off after getting the signal from external sources like timer key in lock etc This function is similar to the dry contact but need to no additional accessory Open the cover of indoor unit control box connect the external source to the terminal block Timer Timer Indoor contol box ...

Страница 34: ...ove guide line in the seaside installation please contact LG Electronics for the additional anticorrosion treatment 2 Periodic more than once year cleaning of the dust or salt particles stuck on the heat exchanger by using water Selecting the location Outdoor Unit 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 uni...

Страница 35: ...P No MFL62541002 ...

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