LG 62AWYU7L6 Installation Manual Download Page 33 | Manualshive

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WIRING

ENGLISH

33

Electrical Wiring

- Follow ordinance of your governmental

organization for technical standard related to
electrical equipment, wiring regulations and
guidance of each electric power company.

- Install the Outdoor Unit transmission line

away from the power source wiring so that it
is not affected by electric noise from the
power source. (Do not run it through the
same conduit.)

- Be sure to provide designated grounding

work to Outdoor Unit.

- Give some allowance to wiring for electrical

part box of Indoor and Outdoor Units,
because the box is sometimes removed at
the time of service work.

- Never connect the main power source to ter-

minal block of transmission line. If connect-
ed, electrical parts will be burnt out.

- Only the transmission line specified should

be connected to the terminal block for
Outdoor Unit transmission.

Precautions when laying power
wiring cable

Use round pressure terminals for connections
to the power terminal block.

When none are available, follow the instruc-
tions below.

- Do not connect wiring cable of different

thicknesses to the power terminal block.
(Slack in the power wiring cable may cause
abnormal heat.)

- When connecting wiring which is the same

thickness, do as shown in the figure below.

- For wiring, use the designated power wiring

cable and connect firmly, then secure to pre-
vent outside pressure being exerted on the
terminal block.

- Use an appropriate screwdriver for tightening

the terminal screws. A screwdriver with a
small head will strip the head and make prop-
er tighterning impossible.

- Over-tightening the terminal screws may

break them.

• Be sure to correct the outdoor unit to

earth. Do not connect earth line to any
gas pipe, liquid pipe, lightening rod or
telephone earth line. If earth is incom-
plete, it may cause an electric shock.

CAUTION

!

Round pressure terminal

Power wiring cable

• Be sure to have authorized electrical

engineers do the electric work using
special circuits in accordance with reg-
ulations and this installation manual. If
power supply circuit has a lack of
capacity or electric work deficiency, it
may cause an electric shock or fire.

!

WARNING

!

WARNING

WIRING

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Summary of Contents for 62AWYU7L6

Page 1: ...ndards by authorized personnel only Please retain this installation manual for future reference after reading it thoroughly TYPE CEILING CONCEALED DUCT MODEL B62AWYN9L6 B62AWYU7L6 B70AWYN9L6 B70AWYU7L6 ENGLISH Original instruction www lg com LG Electronics Inc 2 Wonderland Drive Eastern Creek NSW 2766 Australia LG Electronics Inc Changwon 2nd factory 84 Wanam ro Seongsan gu Changwon si Gyeongsangn...

Page 2: ...pe 30 Forming the piping 31 LEAKAGE TEST AND EVACUATION 31 Preparation 31 Leakage test 32 Evacuation 33 WIRING 33 Electrical Wiring 33 Precautions when laying power wiring cable 34 Indoor unit 35 Connecting the cable to Outdoor Unit 37 Communication and Power wiring cable 38 Wiring of main power supply and equip ment capacity 39 Field Wiring 40 Connecting the DRED to the outdoor unit 41 Wired remo...

Page 3: ...teriorate if the air 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 numbe...

Page 4: ...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 control box securely There is risk...

Page 5: ...erty 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 product failure When the product is soaked flooded or submerged contact an Authorized Service Center There is risk of fire or electric shock Be cautious that water could not e...

Page 6: ...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 fail ure of product Always insert the filter securely Clean the filter every two weeks or more often if necessary A dirty filter reduce...

Page 7: ...tch setting Determination of division work The vacuum pump used must have a capacity of reaching at least 5 torr more than 1 hour Vacuum drying Recharge correctly as calculated in this manual and record the amount of added refrigerant Additional charge of refrigerant Make sure there are no gaps left between the facing materials used on the ceiling Fit facing panels Run each indoor unit in turn to ...

Page 8: ...8 INTRODUCTION ENGLISH Air outlet vents Air intake vents Air outlet vents Air intake vents Remote controller Accessory Features ...

Page 9: ...gaseous state its composition changes and the system will not work properly Do not place the refrigerant container under the direct rays of the sun to pre vent it from exploding For high pressure refrigerant any unap proved pipe must not be used Do not heat pipes more than necessary to prevent them from softening Be careful not to install wrongly to mini mize economic loss because it is ex pensive...

Page 10: ...lution and spray sulfur are often used Do not use unit under any special environ ment where oil steam and sulfuric gas exist It is recommended to fence round the out door unit in order to prevent any person or animal from accessing the outdoor unit If installation site is area of heavy snowfall then the following directions should be observed Make the foundation as high as possible Fit a snow prot...

Page 11: ...all allow easy water drainage The place shall easily connect with the outdoor 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 Suitable dimension H is necessary to get a slope to drain H 200 or more Top view unit mm Front view unit mm Front Inspection hole Air Int...

Page 12: ...lace so that the warm air and noise from the air conditioner do not disturb neigh bors Place that can sufficiently endure the weight and vibration of the outdoor unit and where even installation is possible Place that has no direct influence of snow or rain Place with no danger of snowfall or icicle drop Place without weak floor or base such as decrepit part of the building or with a lot of snow a...

Page 13: ...he unit 1 Stand alone installation 2 Collective installation H L 350 or more 1 500 or more 100 or more 500 or less more 1 000 or H L 350 or more 1 500 or more 100 or more H L 350 or more 1 000 or more 500 or less more 1 000 or H L 350 or more 1 000 or more L H L H L H L H Unit mm ...

Page 14: ...ized heavy rain and avoid frequent flooded area Sea wind Sea wind Sea wind Windbreak 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 exposed to sea wind salty wind directly It can result corrosion on the product Corrosion particularly on the condenser and evaporator fins could cause produ...

Page 15: ...lace where the unit can withstand its vibration 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 A B C D E F G H I J K L 70 kBtu h 1594 1044 286 464 657 821 1368 1622 392 458 1563 791 H K G B A E F C D L I J Air Intake Air Outlet M10 Nut M10 SP washer M10 washer X 4 X 4 Local supply ...

Page 16: ...10 Spring washer M10 Nut W3 8 or M10 Suspension bolt W3 8 or M10 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 Install declination of the indoor unit is very important for the drain of the duct type air conditioner Always lay the in door unit with downward inclination 0 8 to 1 3 Prevent any up...

Page 17: ...efully un clip the three thermistor leads and push the leads through the back of the electrical box Unscrew 5 screws and separate the heat exchanger section from unit Carefully un latch the heat exchanger section from the fan deck section by lifting up the heat ex changer section and then pulling away En sure that the thermistor or expansion valve motor cables do not catch on either section as the...

Page 18: ...then back down And screw the 5 screws the heat ex changer section with unit Secure the two sections together with the 5 bolts Re attach the side lock strap Re connect the unplugged cables Reassemble the control box cover Carefully replace the fan deck section top cover and secure the cover with the screws Checking the Drainage Checking the Drainage Check the drainage Spray one or two glasses of wa...

Page 19: ...ty drainage There is no need to provide a trap for the safety drainage If the safety drainage pipe is connected to the main drainage pipe make the connection below the trap on the main drainage pipe Drill the pipe hole with 65mm dia hole core drill Pipe hole should be slightly slant to the out door side U Trap B C A 70mm B 2C C 2 x SP SP External Pressure mmAq Ex External Pressure 10mmAq A 70mm B ...

Page 20: ...d lifting with 3 point support may make Outdoor Unit unstable resulting in a fall Use 2 belts of at least 8 m long Place extra cloth or boards in the locations where the casing comes in contact with the sling to prevent damage Hoist the unit making sure it is being lifted at its center of gravity When carrying the suspended unit pass the ropes between legs of base panel under the unit Always lift ...

Page 21: ...he bottom shall have width of at least 100mm under the Unit s legs before being fixed The outdoor unit supports should have minimum height of 200mm Anchor bolts must be inserted at least 75mm At least 100mm At least 100mm At least 100mm At least 100mm At least 100mm At least 100mm Center of the Unit For outdoor units should not be supported only by the corner supports Center of the Unit 1 090 700 ...

Page 22: ...ement and may cause freezing of the heat exchanger resulting in abnormal operations Be sure to remove the Pallet Wood Support of the bottom side of the outdoor unit before welding Not removing Pallet Wood Support causes hazard of fire during welding WARNING Install where it can sufficiently support the weight of the outdoor unit If the support strength is not enough the outdoor unit may drop and h...

Page 23: ...tion for human safety If the above equation can not be satisfied then follow the following steps Selection of air conditioning system select one of the next Installation of effective opening part Reconfirmation of Outdoor Unit capacity and piping length Reduction of the amount of refrigerant Installation of 2 or more security device alarm for gas leakage Change Indoor Unit type installation positi...

Page 24: ...f pipe Put the end of the copper pipe to downward direction as you remove burrs in order to avoid to let burrs drop in the pipe Welding Pipe connections can be done on the front side or on the side according to the installa tion environments Be sure to let 0 2kgf cm2 Nitrogen flow in the pipe when welding If Nitrogen was not flown during welding many oxidized membranes may form inside the pipe and...

Page 25: ...k Outs Take care so that there is no thermal damage on the service valves of the outdoor unit Especially packing part of service port Wrap the service valve with a wet towel when brazing it as shown figure above Pictures may differ depending on the model Remove leakage prevention cap Remove the leakage prevention cap attached to the outdoor unit service valve before pipe work Proceed the leakage p...

Page 26: ...l Produced locally Pictures may differ depending on the model Method of drawing out pipes on the bottom side Drawing out common pipe through base panel Liquid pipe Gas pipe Remove only liquid gas pipe Knock out Preventing foreign objects form entering Plug the pipe through holes with putty or insulation material procured locally to stop up all gaps as shown in the figure Insects or small animals e...

Page 27: ...NGLISH 27 Method of drawing out pipes on the rear side Proceed with the pipe work as shown in the below figure for rear side pie drawing out Pipe Knock Out for Liquid Gas pipes Pictures may differ depending on the model ...

Page 28: ...c plate Oily paint NOTE When using polyethylene cover as cover ing material asphalt roofing shall not be required NOTE Recommended Insulation material Material EPDM Thickness 15mm Gas pipe and 19mm Liquid pipe or over Density less than 0 032 0 005 g cm2 Thermal conductivity less than 0 03 kcal m hr C Cutting line of insulation must look upper direction Thickness of insulation is 15mm Gas pipe and ...

Page 29: ...eve Heat insulating material Lagging Caulking material Band Waterproofing layer Sleeve with edge Lagging material Mortar or other incombustible caulking Incombustible heat insulation material When filling a gap with mortar cover the penetration part with steel plate so that the insulation material will not be caved in For this part use incombustible materials for both insulation and covering Vinyl...

Page 30: ...Power supply cord Plastic Plastic band band Plastic band Seal a small Seal a small opening around opening around the pipings with the pipings with gum type sealer gum type sealer Seal a small opening around the pipings with gum type sealant Trap Seal a small opening around the pipings with gum type sealer In cases where the outdoor unit is installed above the indoor unit perform the following Tape...

Page 31: ...rv ice valve caps from both the gas and the liquid side on the outdoor unit Check that both the liq uid and the gas side service valves on the outdoor unit are kept closed at this stage Leakage test Connect the manifold valve with pressure gauges and dry nitrogen gas cylinder to this service port with charge hoses Pressurize the system to no more than 3 8 Mpa with dry nitrogen gas and close the cy...

Page 32: ...are 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 tub ing both Indoor unit and outdoor unit and both gas and liquid side ...

Page 33: ...ne are available follow the instruc tions below Do not connect wiring cable of different thicknesses to the power terminal block Slack in the power wiring cable may cause abnormal heat When connecting wiring which is the same thickness do as shown in the figure below For wiring use the designated power wiring cable and connect firmly then secure to pre vent outside pressure being exerted on the te...

Page 34: ...hould 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 of its service agent When the connection line between the indoor unit and outdooor unit and outdoor unit is over 40m connect the telecommunication line and power line separately 1 Co...

Page 35: ... or more to the panel of control box marked as and fasten with earth screw Make sure the rubber bushes are Properly used in knock out holes after connecting main power cable Connecting cable terminal Power cord terminal Cord clamp Cord clamp 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 ...

Page 36: ... abnormally Example Connection of power and communication cable Over 50mm gap Main power Terminal block Ground wire Hold power cable Hold communication cable Power Ground cable Communication cable Front side Main power Terminal block Insulation sleeves attachments Power Ground cable ODU IDU Communication cable Fix firmly not to be displaced Main Power and Communication Connection ...

Page 37: ...cing of com munication and power wiring cable where these are to be run side by side Current capacity of power line Spacing 100V or more 10A 300mm 50A 500mm 100A 1000mm Exceed 100A 1500mm NOTE The figures are based on assumed length of parallel cabling up to 100m For length in excess of 100m the fig ures will have to be recalculated in direct proportion to the additional length of line involved If...

Page 38: ...ck Do not use anything other than breaker and fuse with correct capacity Using fuse and wire or copper wire with too large capacity may cause a malfunction of unit or fire CAUTION Follow ordinance of your governmental organization for technical standard related to electrical equipment wiring regulations and guidance of each elec tric power company Make sure to use specified wires for connections s...

Page 39: ...electrical shock accident during cur rent leakage Communication disorder by noise effect and motor current leakage without connection to pipe Install the electronic wiring cable like Figure 1 Use a recognized circuit breaker between the power source and the Unit Capacity of circuit breaker recommended by authorized personnel only Install the main switch that can interrupt all the power sources in ...

Page 40: ...anel and the cover control by loosing screw Tighten a screw at two point as the right After connect the Outdoor PCB to the ODU dry contact with the cable provided arrange the wire by two clamps When connecting cable follow the Connection method below Refer to the ODU dry contact Installation manual CN_PWR CN_OUT CEN1_WH_J CEN2_BL_J C 1 2 3 R S T N DRED Signal Receiver Main Terminal Block ODU Dry c...

Page 41: ...nit side CAUTION Installation work must be performed in accordance with the national wiring standards by authorized personnel only Installations must comply with the applicable local national or international standards Apply totally enclosed noncombustible conduit metal raceway in case of local electric building code require plenum cable usage When installing the wired remote controller do not bur...

Page 42: ...installed in a place away from direct sunlight high humidity and direct supply of cold air to maintain proper space temperature Install the remote controller about 5ft 1 5m above the floor in an area with good air circulation 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...

Page 43: ...d value 1 High 2 Low S W SETTING TEST If it is zero static pressure please set value below Maximum value Model Step CMM Static Pressure mmAq Pa Setting Value B62AWYN9L6 B70AWYN9L6 LOW 64 MID 72 HIGH 80 Model Maximum value B62AWYN9L6 B70AWYN9L6 105 6 59 7 69 8 78 9 88 10 98 12 118 13 127 14 137 15 147 16 157 18 176 32 01 32 02 32 03 32 04 32 05 32 06 32 07 32 08 32 09 32 10 32 11 74 75 76 78 79 82 ...

Page 44: ...f you press the button the E S P value will be set CAUTION If you set E S P incorrectly the air conditioner may malfunction This setting must be carried out by authorized personnel only The E S P value is already appropriately set when manufactured from the factory it is recom mended that you do not change the E S P value 100 unit 10 unit Installer Setting E S P Function E S P function is setting ...

Page 45: ...tup mode Please press more than 3 seconds for sure 1 Function Code ESP value ESP step Press button to save 7 Select ESP fan step again by using button and setup ESP value as No 4 and 5 that corresponds each wind flow 6 Press button to exit 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...

Page 46: ...cifi cation Particularly note the relation between cable length and thickness CAUTION Precaution in test running The initial power supply must provide at least 90 of the rated voltage Otherwise the air conditioner should not be operated To cancel the test run press any button Check the following tiems when installation is complete After completing work be sure to measure and record trial run prope...

Page 47: ...own Vibration of a magnetic switch dam age on the contact point there of fuse breaking disturbance to the nor mal 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 ...

Page 48: ... 011 051 No 105 error of Outdoor unit Self diagnosis function Indoor Unit Error Ex Error 03 Remote controller error 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 sens...

Page 49: ...s OFF 35 Low pressure Error 3times 5times OFF 41 Inv D Pipe Th Error Open Short 4times 1time OFF 43 Pressure Sensor Error 4times 3times OFF 44 Outdoor air Th Error Open 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 Com...

Page 50: ...ler Selection of Manual or Auto operation Mode Auto Off SW5 Installation Fan continuous operation Continuous operation Removal Working Off Indoor Unit Factory Set All OFF Dip switch setting 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 appropriate ly during installation WARNING...

Page 51: ... Saving Power Consumption Step 2 1 2 3 4 5 6 7 8 9 10 Mode Lock Cooling 1 2 3 4 5 6 7 8 9 10 Mode Lock Heating 1 2 3 4 5 6 7 8 9 10 Night Quiet Mode Step 1 1 2 3 4 5 6 7 8 9 10 Night Quiet Mode Step 2 1 2 3 4 5 6 7 8 9 10 Mode Lock Cooling Night Quiet Mode Step 1 1 2 3 4 5 6 7 8 9 10 Mode Lock Cooling Night Quiet Mode Step 2 1 2 3 4 5 6 7 8 9 10 Mode Lock Cooling Saving Power Consumption Step 1 1 ...

Page 52: ...y 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 CONTACT Controller DC POWER SUPPLY AC ...

Page 53: ...stallation manual For detailed installation method USB connector USB wire harness WLAN Module Indoor PCB Control box Control box cover Ceiling Ceiling Roof H 200 or more Please check these out Install WLAN module in a space open on all sides Avoid installing it in a blind spot where the signal is weak or blocked Install the unit so that the LG logo in WLAN module face in the direction of Wi Fi wir...

Page 54: ...ntroller Check the slide switch position it should be located 1 position Refer to damper controller Installation manual for detailed installation metheod Damper controller Power Cable Actuator 1 Actuator 2 Indoor PCB Actuator 5 Actuator 4 Actuator 3 Actuator 6 Actuator 7 Actuator 8 Figure 1 Figure 2 CN PTC CN DAMPER NOTICE When install Damper Controller The Remote controller Should be matched as f...

Page 55: ...r removing the control box 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 ...

Page 56: ... 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 Two wired remote controllers should be same model name otherwise it can cause unex pected problems For example Using PQRCVSLOQW with PQRCVSLOQW is proper Using PDRCUDC0 with PDRCUDC0 is pr...

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