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Owner's Manual  

3

ENGLISH

Safety Precautions

• When installing and moving the air conditioner to another site, do not charge it with a different

refrigerant  from the refrigerant specified on the unit.
- If a different refrigerant or air is mixed with the original refrigerant, the refrigerant cycle may

malfunction and the unit may be damaged.

• Do not reconstruct to change the settings of the protection devices.

- If the pressure switch, thermal switch, or other protection device is shorted and operated forcibly, or

parts other than those specified by LGE are used, fire or explosion may result.

• Ventilate before operating air conditioner when gas leaked out.

- It may cause explosion, fire, and burn.

• Securely install the cover of control box and the panel.

- If the cover and panel are not installed securely, dust or water may enter the outdoor unit and fire or

electric shock may result.

• If the air conditioner is installed in a small room, measures must be taken to prevent the 

refrigerant concentration from exceeding the safety limit when the refrigerant leaks.
- Consult the dealer regarding the appropriate measures to prevent the safety limit from being

exceeded. Should the refrigerant leak and cause the safety limit to be exceeded, harzards due to
lack of oxygen in the room could result.

• Don't use the existing manifold gage for R22 refrigerant.

- Use the manifold gage for high pressure (R410A) as possible as for stable refrigerant filling. 

• Don't mix and use the R22 pipe and the installation appliances that were used until now 

- Mixing the oil of R22 and R410A may cause failure of the unit due to hydrolysis. 

Operation

• Do not damage or use an unspecified power cord.

- There is risk of fire, electric shock, explosion, or injury.

• Use a dedicated outlet for this appliance.

- There is risk of fire or electrical shock.

• Be cautious that water could not enter the product.

- There is risk of fire, electric shock, or product damage.

• Do not touch the power switch with wet hands.

- There is risk of fire, electric shock, explosion, or injury.

• Take care so that children should not randomly operate the wire remote control for play.

- Frequent conversion to cold or heat mode may cause failure of the unit.

• When the product is soaked (flooded or submerged), contact an Authorized Service Center.

- There is risk of fire or electric shock.

• Be cautious not to touch the sharp edges when installing.

- It may cause injury.

• Take care to ensure that nobody could step on or fall onto the outdoor unit. 

- This could result in personal injury and product damage.

• 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.

Summary of Contents for ARWN Series

Page 1: ... B C RWB DAS4 P NO MFL65003504 Please read this manual carefully before operating your set and retain it for future reference TYPE Outside unit MODELS OWNER S MANUAL AIR CONDITIONER www lg com Copyright 2015 2018 LG Electronics Inc All Rights Reserved ENGLISH ESPAÑOL PORTUGUÊS ...

Page 2: ...sult Ask the dealer or an authorized technician to install the air conditioner Improper installation by the user may result in water leakage electric shock or fire Always ground the product There is risk of fire or electric shock Always intstall a dedicated circuit and breaker Improper wiring or installation may cause fire or electric shock For re installation of the installed product always conta...

Page 3: ...oxygen in the room could result Don t use the existing manifold gage for R22 refrigerant Use the manifold gage for high pressure R410A as possible as for stable refrigerant filling Don t mix and use the R22 pipe and the installation appliances that were used until now Mixing the oil of R22 and R410A may cause failure of the unit due to hydrolysis Operation Do not damage or use an unspecified power...

Page 4: ...unit in a hospital communication station or similar place provide sufficient protection against noise The inverter equipment private power generator high frequency medical equipment or radio communication equipment may cause the air conditioner to operate erroneously or fail to operate On the other hand the air conditioner may affect such equipment by creating noise that disturbs medical treatment...

Page 5: ...ing on the main power switch can result in severe damage to internal parts Keep the power switch turned on during the operational season Do not touch any of the refrigerant piping during and after operation It can cause a burn or frostbite Do not operate the air conditioner with the panels or guards removed Rotating hot or high voltage parts can cause injuries Do not directly turn off the main pow...

Page 6: ...ter paths 3 When running the heater the plate type heat exchanger plays the role of the evaporator and at this time the temperature of the coolant side drops to drop the temperature of the heat water supply which can result in icing point in the water paths 4 And as the heating process progresses the water paths can be partially frozen to lead to damage in plate type heat exchanger 5 As a result o...

Page 7: ...cleaning 3 Connect the water pipe for cleaning with the chemical solvent through the service plug of the pipe and fill up the panel heat exchanger with 50 C 60 C of cleaning solvent and circulate it with the pump for 2 5 hours The circulation time may depend on the temperature of the cleaning solvent or the creation of the scales Therefore observe change in the color of the chemical solvent to set...

Page 8: ...Calcium chloride brine can cause corrosion on the plate type heat exchanger and must not be used If the anti freeze liquid is left as is it absorbs the moisture from the air to cause a drop in the density leading to freezing of plate type heat exchanger Therefore minimize the contact surface with the atmosphere and periodically measure the density of the brine to supplement the brine as needed to ...

Page 9: ...f required Be careful not to let air in If so the water velocity will be unstable in the circulation pump efficiency will also decrease and may cause the piping vibration Therefore install the air purge where it may generate the air Choose the following anti freezing methods Otherwise it will be dangerous for the pipe to break in the winter Circulate the water with the pump before dropping the tem...

Page 10: ...i corrosion agent or removing the air can be very effective 3 In case of using the closed type cooling tower the cooling water and supplementing water must satisfy the water quali ty criteria of closed type system in the table 4 Supplementing water and supplied water must be supplied with tap water industrial water and underground water excluding filtered water neutral water soft water etc 5 15 it...

Page 11: ...Sor Juana lnés de la Cruz No 555 Col San Lorenzo Industrial Tlalnepantla de Baz Estado de México C P 54033 Tel 55 5321 1919 Teléfono sin costo 01 800 347 1919 Página web http www lg com mx ...

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