LG UUA1 Series Owner'S Manual Download Page 5

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IMPORTANT SAFETY INSTRUCTIONS

ENGLISH

• Failure to carefully read and follow all instructions in this

manual can result in equipment malfunction, property
damage, personal injury and/or death. (for R32)

• Compliance with national gas regulations shall be observed

Installation

• Do not use a defective or underrated circuit breaker. Use the

correctly rated breaker and fuse. 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 by yourself. There is risk of
fire or electric shock.

• Always ground the product as per the wiring diagram. Do not

connect the ground wire to gas or water pipes lightening rod
or telephone ground wire. 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 due to dust , water etc.

• Use the correctly rated breaker or fuse. There is risk of fire or

electric shock.

• Do not modify or extend the power cable. If power cable is

damaged or has deteriorated, then it must be replaced. There
is risk of fire or electric shock.

• For installation, removal or reinstall , always contact the dealer

or an Authorized Service Center. There is risk of fire, electric
shock, explosion, or injury.

• Do not install the product on a defective installation stand. Be

sure that the installation area does not deteriorate with age.
It may cause product to fall.

Summary of Contents for UUA1 Series

Page 1: ... future reference after reading it thoroughly Representative LG Electronics Inc EU Representative LG Electronics European Shared Service Center B V Krijgsman 1 1186 DM Amstelveen The Netherlands Manufacturer LG Electronics Inc Changwon 2nd factory 84 Wanam ro Seongsan gu Changwon si Gyeongsangnam do KOREA Single Inverter Outdoor Unit Original instruction R32 Copyright 2019 2020 LG Electronics Inc ...

Page 2: ... by this product is below 70 dB The noise level can vary depending on the site The figures quoted are emission level and are not necessarily safe working levels Whilst there is a correlation between the emission and exposure levels this cannot be used reliably to determine whether or not further precautions are required Factor that influence the actual level of exposure of the workforce include th...

Page 3: ...eriorate if the air conditioner 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 ...

Page 4: ...ork must be performed by a qualified person who is F Gas registered Installation work must be performed in accordance with the National Electric Code by qualified and authorized personnel only The information contained in the manual is intended for use by a qualified service technician familiar with safety procedures and equipped with the proper tools and test instruments Read the precautions in t...

Page 5: ...oduct as per the wiring diagram Do not connect the ground wire to gas or water pipes lightening rod or telephone ground wire 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 due to dust water etc Use the correctly rated breaker or fuse There is risk of fire or electric shock Do not modify or extend the power cab...

Page 6: ...the cable from the connection terminals Improper or loose connections can cause heat generation or fire Safely dispose off the packing materials Like screws nails batteries broken things etc after installation or svc and then tear away and throw away the plastic packaging bags Children may play with them and cause injury Be sure to check the refrigerant to be used Please read the label on the prod...

Page 7: ... should only be transported by two or more people holding the appliance Mechanical connections shall be accessible for maintenance purposes The appliance shall be disconnected from its power source during service and when replacing parts The appliance shall be installed in accordance with national wiring regulations Operation When the product is soaked flooded or submerged in water contact an Auth...

Page 8: ...ysical injury electric shock or product failure If strange sound smell or smoke comes from product Immediately turn the breaker off or disconnect the power supply cable There is risk of electric shock or fire Ventilate the product room from time to time when operating it together with a stove or heating element etc Oxygen deficiency can occur and hence harm your health When the product is not to b...

Page 9: ...t install the product where it will be exposed to sea wind salt spray directly It may cause corrosion on the product Install the drain hose to ensure that the condensed water is drained away properly A bad connection may cause water leakage Keep level even when installing the product To avoid vibration or noise Do not install the product where the noise or hot air from the outdoor unit could damag...

Page 10: ... person responsible for their safety Children should be supervised to ensure that they do not play with the appliance Pipe work shall be protected from physical damage Do not install the unit in potentially explosive atmospheres Operation Do not use the product for special purposes such as preserving foods works of art etc It is a consumer air conditioner not a precision refrigeration system There...

Page 11: ...ed refrigerant used in the system If air enters the refrigerant system an excessively high pressure results causing equipment damage or injury If the refrigerant gas leaks during the installation ventilate the area immediately Otherwise it can be harmful for your health Dismantling the unit treatment of the refrigerant oil and eventual parts should be done in accordance with local and national sta...

Page 12: ...areful and avoid personal injury The appliance shall be stored so as to prevent mechanical damage from occurring Servicing shall only be performed as recommended by the equipment manufacturer Maintenance and repair requiring the assistance of other skilled personnel shall be carried out under the supervision of the person competent in the use of flammable refrigerants for R32 This appliance can be...

Page 13: ... 24 WIRING CONNECTION 24 Electrical Wiring 24 Connecting Cables between Indoor Unit and Outdoor Unit 27 Connecting the cable to Outdoor Unit 28 LEAKAGE TEST AND EVACUATION 28 Preparation 28 Leakage test 29 Evacuation 30 TEST RUNNING 32 INSTALLATION PI485 33 FUNCTION 33 DIP S W Setting 35 Pump Down 36 Saving Power Consumption 37 Night Quiet Mode 38 Mode Lock 40 INSTALLATION GUIDE AT THE SEASIDE 41 ...

Page 14: ...e than 30cm Figure Figure Name Screw driver Electric drill Measuring tape Knife Hole core drill Spanner Torque wrench Multi meter Hexagonal wrench Ammeter Gas leak detector Thermometer Level Flaring tool set Name Installation Tools INSTALLATION ...

Page 15: ... and avoid frequent flooded area You need to select adequate installation location considering the following conditions and make sure to acquire the consent of the user INSTALLATION OF OUTDOOR UNIT More than 300 Fence or obstacles More than 700 More than 600 Sunroof Sunroof Sunroof More than 300 A 200 mm 7 7 8 inch Installation Places Be very careful while carrying the product Do not have only one...

Page 16: ...id Standard Max Standard Max UUA1 9 12 Ø 9 52 3 8 Ø 6 35 1 4 7 5 20 5 15 20 UUB1 18 Ø 12 7 1 2 Ø 6 35 1 4 7 5 30 5 30 20 UUC1 24 30 Ø 15 88 5 8 Ø 9 52 3 8 7 5 50 5 30 40 UUD1 UUD3 36 42 48 60 Ø 15 88 5 8 Ø 9 52 3 8 7 5 85 5 30 40 ODU Capacity kBtu h Pipe Size mm inch Length A m Elevation B m Additona refrigerant g m Connector Type Gas Liquid Standard Max Standard Max UUA1 18 Ø 12 7 1 2 Ø 6 35 1 4 ...

Page 17: ...1 56 4 8 197 70 5 214 51 5 2 232 02 5 4 250 21 5 6 269 09 5 8 288 65 6 308 90 6 2 329 84 6 4 351 46 6 6 373 77 6 8 396 76 7 420 45 7 2 444 81 7 4 469 87 7 6 495 61 7 8 522 04 Wall mounted m kg Amin m2 1 224 1 224 1 43 1 4 1 87 1 6 2 44 1 8 3 09 2 3 81 2 2 4 61 2 4 5 49 2 6 6 44 2 8 7 47 3 8 58 3 2 9 76 3 4 11 02 3 6 12 36 3 8 13 77 4 15 25 4 2 16 82 4 4 18 46 Wall mounted m kg Amin m2 4 6 20 17 4 ...

Page 18: ...mote Controller Pipe Length Height Spec MAX Total L1 L2 L3 L4 L5 Main Pipe L1 Branch Pipe L2 L3 L4 L5 Each Indoor Outdoor H1 Indoor Indoor H2 L1 L2 L1 L3 L1 L4 L1 L5 A 80 45 40 15 30 1 70 10 Indoor Unit Refrigerant Additional charging g Duo Refrigerant L1 b x B L2 L3 x C Trio Refrigerant L1 b x B L2 L3 L4 x C Quartet Refrigerant L1 b x B L2 L3 L4 L5 x C Model b m B g m UUD1 UUD3 7 5 40 Pipe Diamet...

Page 19: ... MODEL Cassette Duct Cassette Duct Cassette Duct UUD1 UUD3 CT18F 2 CM18F 2 CT12F 3 CL12F 3 CT12F 4 CL12F 4 CT24F 2 CM24F 2 CT18F 3 CM18F 3 UT30F 2 UM30F 2 Applied Accessiries BD unit PMUB11A PMUB111A PMUB1111A Simple central controller PQCSZ250S0 NOTE When using synchro operation Do not use wireless remote controller Use only one wired remote controller in the indoor units Use central controller a...

Page 20: ... power on Ⓑ 4 After step 3 the LED01E red LED and LED02E green LED rapidly flickers When Addressing work is done green LED is off else LED LED01E stops flickering and lights continuously Address of indoor unit is indicated on the wired remote control display window CH01 CH02 CH03 CH04 5 Press button to turn on the indoor 6 If you fail to perform the Addressing work repeat step 2 5 Outdoor Unit PCB...

Page 21: ... 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 R32 as shown below Firmly hold copper tube in a bar or clamp as indicated dimension in the table above Check Compare the flared work with figure below If flare is noted to be defective cut off the flared section and do flaring work aga...

Page 22: ...g Bigger Dia Liquid side piping Smaller Dia Tubing Cover Gas side piping Liquid side piping Drain hose Connecting wire Connection pipe Figure 2 Resin Clay Putty or insulating material produced locally Insects or small animals entering the outdoor unit may cause a short circuit in the electrical box CAUTION Outside diameter Torque mm inch kg m Ø 6 35 1 4 1 8 2 5 Ø 9 52 3 8 3 4 4 2 Ø 12 7 1 2 5 5 6 ...

Page 23: ...onto the wall by saddle or equivalent Trap Trap Trap Trap Seal a small opening Seal a small opening around the pipings around the pipings with gum type sealer with gum type sealer Seal a small opening around the pipings with gum type sealant OUTDOOR UNIT OUTDOOR OUTDOOR UNIT UNIT OUTDOOR UNIT Trap is required to prevent water from entering into electrical parts Taping Drain hose Pipings Connecting...

Page 24: ...R UNIT 1 L 2 N 1 L 2 N 3 POWER SUPPLY TO INDOOR UNIT Model Name Phase Ø ELCB A UUA1 1 15 UUB1 1 20 UUC1 1 25 UUD1 1 40 UUD3 3 20 Electrical Wiring 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 ELCB Electric...

Page 25: ...line separately If the supply cord is damaged it must be replaced by a special cord or assembly available from the manufacturer of its service agent Pipes and wires should be purchased separately for installation of the product Model Name Phase Ø Area mm2 UUA1 UUB1 UUC1 1 2 5 UUD1 1 6 UUD3 3 2 5 2 N 3 1 L S CN REMO CN REMO CN REMO Terminals on the indoor unit 4 2 N 3 1 L S Terminals on the indoor ...

Page 26: ...terminal Power wire When none are available follow the instructions below Do not connect wiring of different thicknesses to the power terminal block Slack in the power wiring may cause abnormal heat When connecting wiring which is the same thickness do as shown in the figure below WARNING Make sure that the screws of the terminal are free from looseness ...

Page 27: ...6 mm2 or more to the panel of control box marked as and fasten with earth screw CAUTION The circuit diagram is not subject to change without notice Be sure to connect wires according to the wiring diagram Connect the wires firmly so that They won t be pulled out easily Connect the wires according to color codes by referring the wiring diagram The Power cord connected to the unit should be selected...

Page 28: ...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 CAUTION To avoid nitrogen entering the refrigerant system in a liquid state the top of the cylinder must be higher than its bottom when you pressurize the system Usually the cylinder is used in a vertical standing position Preparation Check t...

Page 29: ...re nut securely with an adjustable wrench This process is very important to prevent leakage from the system Replace the valve caps at both gas and liquid side service valves and fasten them tight This completes air purging with a vacuum pump The air conditioner is now ready to test run 1 Do a leakage test of all joints of the tubing both Indoor unit and outdoor unit and both gas and liquid side se...

Page 30: ...paid Carry out the test run more than 5 minutes without fail Test run will be cancelled 18 minutes later automatically Is the circulation of air adequate Is the draining smooth Is the heat insulation complete refrigerant and drain piping Is there any leakage of refrigerant Is the remote controller switch operated Is there any faulty wiring Are not terminal screws loosened M4 118 N cm 12 kgf cm M5 ...

Page 31: ...n the name plate 7 Confirm that the cable thickness is as specified in the power sources specification Particularly note the relation between cable length and thickness 8 Never fail to equip a leakage breaker where it is wet or moist 9 The following troubles would be caused by voltage drop down Vibration of a magnetic switch damage on the contact point there of fuse breaking disturbance to the nor...

Page 32: ...32 INSTALLATION PI485 ENGLISH Fix the PI485 PCB as shown in below images For detailed installation method refer to PI485 Installation Manual UUC1 INSTALLATION PI485 UUD1 UUD3 UUB1 UUA1 ...

Page 33: ...o Function Pump Down Saving Power Consumption Step 1 Saving Power Consumption Step 2 Mode Lock Cooling Mode Lock Heating Night Quiet Mode Step 1 Night Quiet Mode Step 2 Mode Lock Cooling Night Quiet Mode Step 1 Mode Lock Cooling Night Quiet Mode Step 2 Mode Lock Cooling Saving Power Consumption Step 1 Mode Lock Cooling Saving Power Consumption Step 2 Mode Lock Heating Saving Power Consumption Step...

Page 34: ...he product down CAUTION Unless the applicable DIP switch is set properly the product may not work If you want to set a specific function request that the installer sets the DIP switch appropriately during installation DIP Switch Function 1 2 3 4 5 6 1 2 3 4 5 6 Synchro_Duo 1 2 3 4 5 6 Synchro_Trio 1 2 3 4 5 6 Synchro_Quartet ...

Page 35: ...p on Red LED On Green LED On Pump Down Start Red LED On Green LED Off Liquid Valve Closed Gas Valve Closed Pump Down Complete Red LED Off Green LED On Power off Red LED Off Green LED On Pump Down Setting Procedure 1 Set the DIP Switch as follow after shutting the power source down 2 Reset the power 3 Red LED and Green LED of PCB lights during work The indoor unit is operated by force 4 If operatio...

Page 36: ...Setting Procedure 1 Set the DIP Switch as follow after shutting the power source down 2 Reset the power UUB1 UUC1 UUD1 UUD3 Step 1 UUB1 UUC1 UUD1 UUD3 UUB1 UUC1 UUD1 UUD3 Step 2 Saving Power Consumption with Mode Lock Saving Power Consumption step 1 Mode Lock Cooling UUB1 UUC1 UUD1 UUD3 Saving Power Consumption step 1 Mode Lock Heating Power consumption and current Normal Time ...

Page 37: ...is function is operated all night long Setting Procedure 1 Set the DIP Switch as follow after shutting the power source down 2 Reset the power h Noise level Step 1 Step 2 UUB1 UUC1 UUD1 UUD3 Saving Power Consumption step 2 Mode Lock Cooling UUB1 UUC1 UUD1 UUD3 Saving Power Consumption step 2 Mode Lock Heating UUB1 UUC1 UUD1 UUD3 Step 1 UUB1 UUC1 UUD1 UUD3 Step 2 ...

Page 38: ...e the DIP Switch If operating indoor unit is set by the fan speed Power Night Quiet Mode will be stopped until fan speed Power is changed UUB1 UUC1 UUD1 UUD3 Mode Lock Cooling Night Quiet Mode step 1 UUB1 UUC1 UUD1 UUD3 Mode Lock Cooling Night Quiet Mode step 2 Mode Lock Setting Procedure 1 Set the DIP Switch as follow after shutting the power source down 2 Reset the power UUB1 UUC1 UUD1 UUD3 Only...

Page 39: ...step 1 UUB1 UUC1 UUD1 UUD3 Mode Lock Cooling Night Quiet Mode step 2 UUB1 UUC1 UUD1 UUD3 Mode Lock Cooling Saving Power Consumption step 1 UUB1 UUC1 UUD1 UUD3 Mode Lock Heating Saving Power Consumption step 1 UUB1 UUC1 UUD1 UUD3 Mode Lock Cooling Saving Power Consumption step 2 UUB1 UUC1 UUD1 UUD3 Mode Lock Heating Saving Power Consumption step 2 ...

Page 40: ... sea wind from the sea The height and width should be more than 150 of the outdoor unit More than 70 cm of space should be kept between outdoor unit and the windbreak for easy air flow Place with fluent water draining Install at a place with fluent water draining to prevent damage from localized heavy rain and avoid frequent flooded area In case to install the outdoor unit on the seaside set up a ...

Page 41: ...t in snow or rain Install the outdoor unit not to come in contact with snow directly If snow piles up and freezes on the air suction hole the system may malfunction If it is installed at snowy area attach the hood to the system Install the outdoor unit at the higher installation console by 50 cm than the average snowfall annual average snowfall if it is installed at the area with much snowfall Whe...

Page 42: ...42 ENGLISH ...

Page 43: ... The information for Eco design is available on the following free access website https www lg com global support cedoc cedoc ...

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