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P/NO : MFL62541004

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 : CEILING CONCEALED DUCT

MODEL : AB-W4267SA3 / AB-W4867SA3 / AB-W5567SA3

ENGLISH

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Содержание MFL62541004

Страница 1: ...y 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 CEILING CONCEALED DUCT MODEL AB W4267SA3 AB W4867SA3 AB W5567SA3 ENGLISH ...

Страница 2: ...condi tioner 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...

Страница 3: ...e or underrated circuit breaker Use this appliance 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 co...

Страница 4: ...t 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 from the outdoor unit could damage the neigh borhoods It may cause a problem for your neighbors Use two or more people...

Страница 5: ...bles to the Indoor Unit 19 Clamping of cables 20 Connecting the cable to the Outdoor Unit 21 FORMING THE PIPING 22 Point of remote controller installation 22 REMOTE CONTROLLER INSTALLATION 23 Wired remote controller installation 24 EXTERNAL STATIC PRES SURE FLOW 25 Precaution in test running 25 Check the following tiems when installation is complete 25 Connection of power supply 25 Evaluation of t...

Страница 6: ...Remote Controller Air intake vents Air outlet vents Connection pipe Drain hose Connecting wire Air outlet vents Side Rear Air intake vents 6 INTRODUCTION ENGLISH Features INTRODUCTION ...

Страница 7: ...oor unit If an awning is built over the unit to prevent direct sunlight or rain exposure make sure that heat radiation from the condenser is not restricted Ensure that the spaces indicated by arrows around front back and side of the unit Do not place animals and plants in the path of the warm air Take the air conditioner weight into account and select a place where noise and vibration are minimum ...

Страница 8: ... the unit will be leveled and that can support the weight of the unit A place where the unit can withstand its vi bration A place where service can be easily per formed Select and mark the position for fixing bolts Drill the hole for set anchor on the face of ceiling Dimension Capacity Btu h A B C D E F G H I J K L 42 48 55K 1352 1320 840 287 400 441 563 1172 1365 317 360 40 I H C B A F D E G J K ...

Страница 9: ...Set anchor Plate washer M10 Spring washer M10 Nut W3 8 or M10 Suspension bolt W3 8 or M10 9 1 Set anchor Old building New building 2 Plate washer 3 Spring washer 4 Nut 5 Suspension bolts Tighten the nut and bolt to prevent unit falling CAUTION 1 Install declination of the indoor unit is very important for the drain of the duct type air conditioner 2 Minimum thickness of the insulation for the conn...

Страница 10: ...owed Safety drain There is no need to provide a trap for the safty drain If the safty drain pipe is con nected to the main drain pipe make the con nection below the trap on the main drain pipe Drill the piping hole with 70mm dia hole core drill Piping hole should be slightly slant to the outdoor side Drainage hole Make sure to be closed Unit Drainage pip Local suppl Thermal insulator Local supply ...

Страница 11: ...sses of water upon the evaporator Ensure that water flows drain hose of indoor unit without any leakage 11 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 sup...

Страница 12: ...door unit A B The standard pipe length is 7 5 m and no need to additional charge of the refrigerant to max 15 m If the pipe length exceeds 15 m need to additional charge of the refrigerant which according to the table If 42 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 ...

Страница 13: ...e 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 dedicated flaring tool for R 410A as shown below Firmly hold copper tube in a bar or die as indi cated dimension in the table above Check Compare the flared work with figure below If flare is noted to be ...

Страница 14: ...nch ensure the direction for tightening follows the arrow on the wrench Align the center of the piping and sufficiently tighten the flare nut by hand The installation piping is connectable in four directions refer to figure 1 14 CONNECTING PIPES ENGLISH Indoor unit tubing Flare nut Pipings Torque wrench Indoor unit tubing Spanner fixed Connection pipe Flare nut Outdoor unit Continuous Torque wrenc...

Страница 15: ...putty or in sulation 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 15 CONNECTING PIPES Knock out Base pan Figure 2 Gas side piping Bigger Dia Liquid side piping Smaller Dia Putty or insulating material produced locally Drain hose Connecting wire Connection pipe Figure 3 ...

Страница 16: ...ure gauges and dry nitrogen gas cylinder to this service port with charge hoses Pressurize the system to no more than 3 0 Mpa with dry nitrogen gas and close the cylinder valve when the gauge reading reached 3 0 Mpa Next test for leaks with liq uid soap 1 Do a leakage test of all joints of the tub ing both indoor and outdoor and both gas and liquid side service valves Bubbles indicate a leak Be su...

Страница 17: ...alve 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 bonnet on the gas side service port and fasten the flare nut securely with an adjustable wrench This process is very important to prevent leakage from the system 5 Replace the valv...

Страница 18: ... have mark Connect the cable of diameter 1 6mm2 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 6mm2 or more to the panel of control box marked as and fasten with earth screw Outdoor Indoor Main power source Switch box Circuit Breaker Main terminal board Control terminal board Cord cl...

Страница 19: ...g cable to the terminal block put the 1 0mm2 cable thinner cable on the clamp and tighten it with a plastic clamp to the other boss of the control panel In Australia the length of power supply cable measured from the entry of the power sup ply cable to the middle of live pin on the power plug should be over 1 8m 19 Make sure that the screws of the terminal fixed tightly Installation work must be p...

Страница 20: ...ransportation 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 cable thickness is as specified in the power...

Страница 21: ...oor unit perform the follow ing 1 Tape the piping and connecting cable from down to up 2 Secure the taped piping along the exterior wall Form a trap to prevent water entering the room 3 Fix the piping onto the wall by saddle or equivalent 21 Trap is required to prevent water from entering into electrical parts Taping Drain hose Pipings Connecting cable Power supply cord Seal a small Seal a small o...

Страница 22: ... the indoor unit Put the installation paper on the place and de termine the position and height of the fixing screws of the deluxe wired remote controller Refer to the printed side of the installation paper Remove the installation paper before installing the remote controller so that it can fit into the right place When installing the deluxe wired remote controller do not install it so that it is ...

Страница 23: ...erage 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 the remote con...

Страница 24: ...Volt Air Flow Step Piping Length Temperaure C DB C WB Cooling Heating Indoor Outdoor Indoor Outdoor 60 Ø1 230 V High 7 5 m 27 19 35 24 20 15 7 6 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 How to set RPM 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 1 Pr...

Страница 25: ...take and discharge air 2 Ensure the difference between the intake temperature and the discharge one is more than 8 C Cooling or reversely Heat ing 25 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...

Страница 26: ...down Vibration of a magnetic switch damage on the contact point there of fuse breaking disturbance to the normal function of a overload protection device Proper starting power is not given to the compressor HAND OVER Teach the customer the operation and mainte nance procedures using the operation manual air filter cleaning temperature control etc ...

Страница 27: ... is turned on and off as the Error code number of single digit 27 3 Times 3 Times 3 Times 2 Sec LED02G GREEN 2 Sec 01 Indoor Room sensor error 0 1time OFF 02 Indoor in pipe sensor error 0 2times OFF 03 Remote controller error 0 3times OFF 04 Drain pump error 0 4times OFF 05 Communication error indoor and outdoor 0 5times OFF 06 Indoor out pipe sensor error 0 6times OFF 09 EEPROM error indoor 0 9ti...

Страница 28: ...en Short 4times 4times OFF 45 Cond Middle Pipe Th Error Open Short 4times 5times OFF 46 Suction Pipe Th Error Open Short 4times 6times OFF 48 Cond Out Pipe Th Error Open Short 4times 8times OFF 51 Capacity over 5times 1time OFF 53 Communication Error Indoor Outdoor 5times 3times OFF 60 EEPROM Error Outdoor 6times 0 OFF 61 Cooling Mode Outdoor Middle Pipe High 6times 1time OFF Heating Mode Indoor M...

Страница 29: ...etween Indoor Outdoor Communication Non Com munication Off SW2 Cycle Cooling or Heating Model H P C O Off 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 SW5 Installation Fan continuous operation Continuous operation Removal Working Off ...

Страница 30: ... Figure 2 Connect 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 P...

Страница 31: ...allation manual for detailed installation method 31 CN_PWR AC Centroller Centroller Controller Controller Connector DC Connector DC CN_OUT DC CN_OUT DC PI485 CN_CENTRAL CN_CENTRAL CN_CENTRAL WCN_P N WCN_P N WCN_P N WCN_P L WCN_P L WCN_P L Centroller Controller Connector DC CN_OUT DC Screw Space for PI485 Space for PI485 Space for PI485 PI485 PI485 PI485 DC Line DC Line DC Line AC Line AC Line AC L...

Страница 32: ...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 Indoor PCB Control box Control box cover Cable RF remote controller Double coated tape CN DISPLAY RF Remote controller ...

Страница 33: ...e 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 It is possible to use 2 position control actuator on off or 3 position control actuator on off 33 Remote controller Zone type selection 1 1 Zone new 2...

Страница 34: ...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 re mote controller as far as possible Refer to damper remote sensor manual for detailed installation metheod Fi...

Страница 35: ... as slave Figure 1 The thermistor mode is operated by the wired remote controller set as master 35 Wired remote controller Indoor PCB Cable Wired remote controller Remote Controller Group Control S W GR 1 1 Master 2 Slave 2 Two wired remote controllers should be same model name otherwise it can cause unexpected problems For example Using PQRCVSLOQW with PQRCVSLOQW is proper Using PDRCUDB0 with PDR...

Страница 36: ...rn 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 ...

Страница 37: ...he windbreak for easy air flow Select a well drained place Sea wind Sea wind Sea wind Windbreak Periodic more than once year cleaning of the dust or salt particles stuck on the heat exchanger by using water INSTALLATION GUIDE AT THE SEASIDE Air conditioners should not be installed in areas where corrosive gases such as acid or alkaline gas are produced Do not install the product where it could be ...

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