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Installation Manual  

5

Safety Precautions

ENGLISH

Do not turn on the breaker or power
under condition that front panel,
cabinet, top cover, control box
cover are removed or opened. 

• Otherwise, it may cause fire, electric

shock, explosion or death.

Use a vacuum pump or Inert (nitrogen)
gas when doing leakage test or air
purge. Do not compress air or Oxygen
and Do not use Flammable gases. Oth-
erwise, it may cause fire or explosion.

• There is the risk of death, injury, fire or

explosion.

For installation, always con-
tact the dealer or an Author-
ized Service Center.

• There is risk of fire,

electric shock, explo-
sion, or injury.

Do not install the prod-
uct on a defective in-
stallation stand.

• It may cause injury, ac-

cident, or damage to the
product.

Be sure the installation
area does not deterio-
rate with age.

• If the base collapses, the

air conditioner could fall
with it, causing property
damage, product failure,
and personal injury.

n

Operation

Do not let the air condi-
tioner run for a long time
when the humidity is
very high and a door or
a window is left open.

• Moisture may condense

and wet or damage fur-
niture.

Take care to ensure
that power cable could
not be pulled out or
damaged during oper-
ation.

• There is risk of fire or

electric shock.

Do not place anything
on the power cable.

• There is risk of fire or

electric shock.

Do not plug or unplug
the power supply plug
during operation.

• There is risk of fire or

electric shock.

Do not touch(operate)
the product with wet
hands.

• There is risk of fire or

electrical shock.

Do not place a heater
or other appliances
near the power cable.

• There is risk of fire and

electric shock.

Do not allow water to
run into electric parts.

• It may cause  There is

risk of fire, failure of the
product, or electric shock.

Do not store or use
flammable gas or com-
bustibles near the
product.

• There is risk of fire or

failure of product.

Do not use the product
in a tightly closed
space for a long time.

• Oxygen deficiency could

occur.

Summary of Contents for ARNU07GM1A4

Page 1: ...ONCEALED DUCT Original instruction 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 For more information Refer to the CD or LG Web site www lg com INSTALLATION MANUAL AIR CONDITIONER P NO ...

Page 2: ...r o Hexagonal wrench o Gas leak detector o Vacuum pump o Gauge manifold o Owner s manual o Thermometer Features 3 Safety Precautions 4 Installation Selection the best location 9 Ceiling opening dimension and hanging bolt location 10 Indoor Unit Installation 11 Wiring Connection 11 Checking the Drainage 12 Indoor Unit Drain Piping 13 Dip Switch Setting 15 Group Control Setting 16 Model Designation ...

Page 3: ...t vents Air outlet vents Accessory Features Name Drain hose Clamp metal Washer for hanging bracket Clamp Tie Wrap Insulation for fitting Quantity 1 EA 2 EA 8 EA 4 EA 1 SET Shape Other Owner s manual Installation manual for gas pipe for liquid pipe Installation Tool ...

Page 4: ... shock For electrical work contact the dealer seller a qualified elec trician or an Author ized 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 dedi cated circuit and breake...

Page 5: ...y damage product failure and personal injury n Operation Do not let the air condi tioner run for a long time when the humidity is very high and a door or a window is left open Moisture may condense and wet or damage fur niture Take care to ensure that power cable could not be pulled out or damaged during oper ation There is risk of fire or electric shock Do not place anything on the power cable Th...

Page 6: ...t use the tele phone 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 discon nect 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 win dow before the hurri cane arrives There is risk of property d...

Page 7: ... peo ple to lift and transport the product Avoid personal injury Do not install the prod uct where it will be ex posed to sea wind salt spray directly It may cause corrosion on the product Corro sion particularly on the condenser and evapora tor fins could cause product malfunction or inefficient operation CAUTION n Installation n Operation Do not expose the skin directly to cool air for long peri...

Page 8: ...g parts that could cause personal injury Do not drink the water drained from the prod uct It is not sanitary and could cause serious health issues Use a firm stool or lad der when cleaning or maintaining the prod uct Be careful and avoid personal injury Replace the all batteries in the remote control with new ones of the same type Do not mix old and new batteries or different types of batteries Th...

Page 9: ...ead completely then follow step by step Front view Unit mm Unit mm Top view Front Inspection hole 1 600 x 600 Inspection hole 2 600 x 600 Control box 1000 Air outlet vents Air inlet vents 600 600 More than 20 ENGLISH Installation Selection of the best location CAUTION In case that the unit is installed near the sea the installation parts may be corroded by salt The installation parts and the unit ...

Page 10: ...praying dispersing of water drops etc In these cases take the following actions Make sure 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 oil steam 2 A...

Page 11: ...l panel 2 First fasten the steel clamp with a screw to the inner boss of control panel 3 For the cooling model fix the other side of the clamp with a screw strongly For the heat pump model put the 0 75mm2 cable thinner cable on the clamp and tighten it with a plastic clamp to the other boss of the control panel Terminal Block Indoor 1 L 2 N Terminal Block Indoor 3 4 INDOOR POWER INPUT Terminal Blo...

Page 12: ...joint and tubes completely All thermal insulation must comply with local requirement INDOOR UNIT THERMAL INSULATION 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 clip for thermal insulator Local supply Liquid pipe Refrigerant pipe and thermal insulation Local sup...

Page 13: ...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 opera tion and noise when electrical wiring is complete When the test is c...

Page 14: ... 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 sources specifi cation Particularly note the relation between cable length and thickness 8 Never fail to equi...

Page 15: ...6 Heater linkage N A Off SW7 Ventilator link age Selection of Ventilator linkage Linkage Removal Working Off Vane selection Console Selection of up down side Vane Up side Down side Vane Up side Vane Only Region selec tion Selection tropical re gion General model Tropical model SW8 Etc Spare Off 1 Indoor Unit 2 Outdoor Unit In case that the products meet specific conditions Auto addressing function...

Page 16: ... controller 1 It is possible to 16 indoor units Max by one wired remote controller Set only one indoor unit to Master set the others to Slave 2 It is possible to connect with every type of indoor units 3 It is possible to use wireless remote controller at the same time 4 It is possible to connect with Dry Contact and Central controller at the same time The Master indoor unit is possible to recogni...

Page 17: ... master and slave h In case of Group Control it is possible to use following functions Selection of operation stop or mode Temperature setting and room temperature check Current time change Control of flow rate High Middle Low Reservation settings It is not possible to use some functions h It is possible to control 16 indoor units Max with the master wired remote control h Other than those it is s...

Page 18: ...AU FAU Standard Standard FAU FAU Fresh Air Intake Unit Standard Standard Indoor Unit h In case of connecting with standard indoor unit and Fresh Air Intake Unit separate Fresh Air Intake Unit with standard units N M 16 Because setting temperature are different h Other than those it is same with Group Control 1 3 Group Control 3 n Mixture connection with indoor units and Fresh Air Intake Unit ...

Page 19: ...ne indoor unit to Master set the others to Slave Set only one wired remote controller to Master set the others to Slave 2 Every types of indoor unit is possible to connect two remote controller 3 It is possible to use wireless remote controller at the same time 4 It is possible to connect with Dry Contact and Central controller at the same time 5 In case that any error occurs at indoor unit the er...

Page 20: ...ies Indoor unit 2 EA Wired remote controller Indoor unit 1 EA Wired remote controller 2EA h PZCWRCG3 cable used for connection h PZCWRC2 cable used for connection Slave Master Master PZCWRC G3 Master Slave PZCWRC 2 Apply totally enclosed noncombustible conduit in case of local building code Requiring plenum cable usage CAUTION ...

Page 21: ...n be taken without hurting human body when refrigerant leaks in the air The limiting concentration shall be described in the unit of kg m3 Freon gas weight per unit air volume for facilitating calculation n Calculate refrigerant concentration Refrigerant concentration Total amount of replenished refrigerant in refrigerant facility kg Capacity of smallest room where indoor unit is installed m3 Limi...

Page 22: ...9 13 2 10 2 90 17 5 15 0 12 0 95 19 0 16 7 13 7 10 7 100 20 6 18 5 15 5 12 5 105 22 1 20 3 17 3 14 3 11 1 110 23 7 22 1 19 0 16 1 13 1 10 0 115 23 8 20 8 17 9 15 1 12 2 120 22 6 19 7 17 1 14 3 11 3 125 21 5 19 1 16 5 13 6 11 9 130 23 3 21 2 18 7 15 8 14 3 135 23 2 20 8 18 0 16 7 140 23 0 20 3 19 1 145 22 5 21 5 150 23 8 Setting value Static Pressure mmAq Pa 2 5 25 4 39 6 59 8 78 10 98 12 118 14 13...

Page 23: ...4 39 6 59 8 78 10 98 12 118 14 137 15 147 85 24 9 90 27 6 22 7 95 30 4 25 7 20 7 100 33 1 28 7 24 0 105 35 9 31 7 27 3 20 8 110 38 6 34 7 30 5 24 3 20 6 115 37 8 33 8 27 9 23 8 120 37 1 31 4 27 0 22 4 20 5 125 35 0 30 1 25 7 23 7 130 37 1 32 0 27 6 25 7 Setting value Static Pressure mmAq Pa 5 49 6 59 8 78 10 98 12 118 14 137 15 147 90 22 2 95 25 1 22 3 100 28 0 25 4 105 30 9 28 5 23 3 110 33 8 31 ...

Page 24: ...1 7 25 2 22 6 105 56 2 54 1 49 2 43 0 37 1 31 0 28 5 110 58 8 53 9 47 9 42 4 36 7 34 4 115 58 6 52 9 47 8 42 5 40 3 120 57 8 53 1 48 2 46 1 125 54 2 49 4 47 3 ARNU48GM3A4 ARNU54GM3A4 Unit CMM Note 1 The above table shows the correlation between the air rates and E S P 2 Make sure to check and adjust E S P external static pressure value after the installa tion of the product Otherwise there is a ri...

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