LG FM40AH INSTALLATION INSTRUCTIONS

INSTALLATION MANUAL

AIR CONDITIONER

www.lg.com

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.

This product contains Fluorinated Greenhouse Gases. (R410A)

[

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

MULTI

Original instruction

MFL67855417

Rev.02_031820

РУССКИЙ ЯЗЫК

ENGLISH

УКРАÏНСЬКА

ITALIANO ESPAÑOL FRANÇAIS DEUTSCH

ҚАЗАҚ ТІЛІ

БЕЛАРУСКАЯ МОВА

O‘ZBEK TILI

ΕΛΛΗΝΙΚΆ

ČEŠTINA

NEDERLANDS

POLSKI

LIMBA ROMÂNĂ

TIPS FOR SAVING ENERGY

ENGLISH

TIPS FOR SAVING ENERGY

Here are some tips that will help you minimize the power consumption when you use the air conditioner. You can use your air conditioner more efficiently by referring to the instructions below:

• Do not cool excessively indoors. This may be harmful to your health and may consume more electricity.

• Block sunlight with blinds or curtains while you are operating the air conditioner.

• Keep doors or windows closed tightly while you are operating the air conditioner.

• Adjust the direction of the air flow vertically or horizontally to circulate indoor air.

• Speed up the fan to cool or warm indoor air quickly, in a short period of time.

• Open windows regularly for ventilation as the indoor air quality may deteriorate 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 :

Serial number :

You can find them labeled on the side of each unit.

Dealer’s name :

Date of purchase :

IMPORTANT SAFETY INSTRUCTIONS

ENGLISH

IMPORTANT SAFETY INSTRUCTIONS

READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE.

Always comply with the following precautions to avoid dangerous situations and ensure peak performance of your product.

WARNING

It can result in serious injury or death when the directions are ignored.

CAUTION

It can result in minor injury or product damage when the directions are ignored.

WARNING

• Installation or repairs made by unqualified persons can result in hazards to you and others.

• 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.

• Failure to carefully read and follow all instructions in this manual can result in equipment malfunction, property damage, personal injury and/or death.

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.

ENGLISH

IMPORTANT SAFETY INSTRUCTIONS

• Do not modify or extend the power cable. If the power cable or cord has scratches or skin peeled off or 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.

• Never install the outdoor unit on a moving base or a place from where it can fall down. The falling outdoor unit can cause damage or injury or even death of a person.

• In outdoor unit the step-up capacitor supplies high voltage electricity to the electrical components. Be sure to discharge the capacitor completely before conducting the repair work. An charged capacitor can cause electrical shock.

• When installing the unit, use the installation kit provided with the product. Otherwise the unit may fall and cause severe injury.

• Indoor/outdoor wiring connections must be secured tightly and the cable should be routed properly so that there is no force pulling 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 product. Incorrect refrigerant used can prevent the normal operation of the unit.

Operation

• When the product is soaked (flooded or submerged) in water , contact an Authorized Service Center for repair before using it again. There is risk of fire or electric shock.

• Be sure to use only those parts which are listed in the svc parts list. Never attempt to modify the equipment. The use of inappropriate parts can cause an electrical shock, excessive heat generation or fire.

IMPORTANT SAFETY INSTRUCTIONS

ENGLISH

• Do not touch , operate, or repair the product with wet hands. Hold the plug by hand when taking out. There is risk of electric shock or fire.

• Do not place a heater or other heating appliances near the power cable. There is risk of fire and electric shock.

• Do not allow water to run into electric parts. Install the unit away from water sources. There is risk of fire, failure of the product, or electric shock.

• Do not store or use or even allow flammable gas or combustibles near the product. There is risk of fire.

• Do not use the product in a tightly closed space for a long time. Perform ventilation regularly. Oxygen deficiency could occur and hence harm your health.

• Do not open the front grille 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.

• 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 be used for a long time, disconnect the power supply plug or turn off the breaker. There is risk of product damage or failure, or unintended operation.

• Take care to ensure that nobody especially kids could step on or fall onto the outdoor unit. This could result in personal injury and product damage.

• Take care to ensure that power cable could not be pulled out or damaged during operation. There is risk of fire or electric shock.

• Do not place ANYTHING on the power cable. There is risk of fire or electric shock.

• When flammable gas leaks, turn off the gas and open a window for ventilation before turning on the product. Do not use the telephone or turn switches on or off. There is risk of explosion or fire.

ENGLISH

Installation

IMPORTANT SAFETY INSTRUCTIONS

CAUTION

• Two or more people must lift and transport the product. Avoid personal injury.

• Do not 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 damage or disturb the neighborhoods. It may cause a problem for your neighbors and hence dispute.

• Always check for gas (refrigerant) leakage after installation or repair of product. Low refrigerant levels may cause failure of product.

• Please install safely at a place that can sufficiently endure the weight of the product. If the strength is not sufficient, the product may fall and cause injury.

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 is risk of damage or loss of property.

• Do not block the inlet or outlet of air flow. It may cause product failure.

• Use a soft cloth to clean. Do not use harsh detergents, solvents or splashing water etc. There is risk of fire, electric shock, or damage to the plastic parts of the product.

• Do not touch the metal parts of the product when removing the air filter. There is risk of personal injury.

• Do not step on or put anything on the product. (outdoor units) There is risk of personal injury and failure of product.

• Always insert the filter securely after cleaning. Clean the filter every two weeks or more often if necessary. A dirty filter reduces the efficiency.

IMPORTANT SAFETY INSTRUCTIONS

ENGLISH

• Do not insert hands or other objects through the air inlet or outlet while the product is operating. There are sharp and moving parts that could cause personal injury.

• Be cautious when unpacking and installing the product. Sharp edges could cause injury.

• If the refrigerant gas leaks during the repair, do not touch the leaking refrigerant gas. The refrigerant gas can cause frostbite (cold burn).

• Do not tilt the unit when removing or uninstalling it. The condensed water inside can spill.

• Do not mix air or gas other than the specified 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 standards.

• 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. There is risk of fire or product failure.

• Do not recharge or disassemble the batteries. Do not dispose off batteries in a fire. They may burn or explode.

• If the liquid from the batteries gets onto your skin or clothes, wash it well with clean water. Do not use the remote if the batteries have leaked. The chemicals in batteries could cause burns or other health hazards.

• If you eat the liquid from the batteries, brush your teeth and see doctor. Do not use the remote if the batteries have leaked. The chemicals in batteries could cause burns or other health hazards.

• Do not let the air conditioner 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 furniture.

• Do not expose your skin or kids or plants to the cool or hot air draft. This could harm to your health.

• Do not drink the water drained from the product. It is not sanitary and could cause serious health issues.

• Use a firm stool or ladder when cleaning, maintaining or repairing the product at an height. Be careful and avoid personal injury.

TABLE OF CONTENTS

ENGLISH

TABLE OF CONTENTS

2 TIPS FOR SAVING ENERGY 3 IMPORTANT SAFETY INSTRUCTIONS 9 INSTALLATION 10 INSTALLATION OF INDOOR, OUTDOOR UNIT

10 Select the best location 11 Piping length and elevation 12 Refrigerant charge

13 FLARING WORK AND CONNECTION OF PIPING

13 Flaring work 14 Connection of piping - Outdoor 17 Installation 18 Installation of The Main Unit

CONNECTING THE CABLE BETWEEN INDOOR UNIT AND OUTDOOR UNIT

19 Connect the cable to the Indoor unit 21 Connect the cable to the Outdoor unit 23 Connection of Wiring 24 Forming the Piping

25 AIR PURGING AND EVACUATION

25 Checking method 26 Evacuation

27 INSTALLATION PI485 28 TEST RUNNING 29 FUNCTION

29 Dip S/W Setting 30 Pump Down 32 Wiring Error Check 33 Saving Power Consumption 34 Night Quiet Mode 35 Mode Lock

36 INSTALLATION GUIDE AT THE SEASIDE 36 SEASONAL WIND AND CAUTIONS IN WINTER

37 Model Designation 37 Airborne Noise Emission 37 Limiting concentration

Installation plate

Type "B" screws

Type "A" screw (6 EA) Type "A" screw (8 EA) Type "A" screw (7 EA)

Holder Remote Control

Type "A" screw and plastic anchors

INSTALLATION

500

or less

Installation Parts

INSTALLATION

ENGLISH

Clearance of side discharge unit [Unit : mm]

Do not install the product where sufficient ventilation is not secured. The performance may be decreased or the product may not be operated.

300 or more

500 or less

1 000 or more

300

or more

1 000 or more

h In case of series or another installation, please refer to related PDB.

or more

500

300

500

or less

600

or more

1 000 or more

300

or more

300

or more

2 000 or more

600 or more

1 000 or more

INSTALLATION OF INDOOR, OUTDOOR UNIT

more than

70 cm

more than

30 cm

more than

30 cm

more than

60 cm

more than 60 cm

more than

70 cm

more than

30 cm

more than 60 cm

more than

30 cm

more than

60 cm

ENGLISH

INSTALLATION OF INDOOR, OUTDOOR UNIT

Read completely, then follow step by step. You need to select adequate installation location

considering the following conditions, and make sure to acquire the consent of the user.

Select the best location

Outdoor unit

1 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.

2 Ensure that the spaces indicated by arrows

around front, back and side of the unit.

3 Do not place animals and plants in the path of

the warm air.

4 Take the air conditioner weight into account

and select a place where noise and vibration are minimum.

5 Select a place so that the warm air and noise

from the air conditioner do not disturb neighbors.

6 Place that can sufficiently endure the weight

and vibration of the outdoor unit and where even installation is possible

7 Place that has no direct influence of snow or

rain

8 Place with no danger of snowfall or icicle

drop

9 Place without weak floor or base such as

decrepit part of the building or with a lot of snow accumulation

Rooftop Installations

If the outdoor unit is installed on a roof structure, be sure to level the unit. Ensure the roof structure and anchoring method are adequate for the unit location. Consult local codes regarding rooftop mounting.

INSTALLATION OF INDOOR, OUTDOOR UNIT

Branch Pipe

Main Pipe

Distributor

Distributor Type

Piping length and elevation

Distributor type Models (Unit: m)

Phase

1 Ø

3 Ø

Capacity

(kBtu/h)

42 125 55 70 15 30 15 48 135 55 80 15 30 15 56 145 55 90 15 30 15 42 125 55 70 15 30 15 48 135 55 80 15 30 15 56 145 55 90 15 30 15

Total

Length

Max Main Pipe

Length (A/B)

Total Branch Pipe Length

Max Branch Pipe Length

CAUTION

Max Elevation

(h1)

Capacity is based on standard length and maximum allowance length is on the basis of reliability. If outdoor unit is at higher elevation than the indoor units, after 24 m of vertical height, 1 oil trap is required.

In - In

Elevation (h2)

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INSTALLATION OF INDOOR, OUTDOOR UNIT

ENGLISH

Refrigerant charge

The calculation of the additional charge should be taken in account for the length of extra pipe.

Distributor type Models (Unit: m)

Main Piping length Branch piping length

Phase Capacity(kBtu/h)

42 5 50 5 20

1 Ø

48 5 50 5 20 56 5 50 5 20 42 5 50 5 20

3 Ø

48 5 50 5 20 56 5 50 5 20

• Distributor type Models

① (Total Branch piping length) < 35 m

Additional charge (g) = ( Total Main piping Length – Main Standard Length ) × 50 g/m

② (Total Branch piping length) ≥ 35 m

Additional charge (g) = ( Total Main piping Length – Main Standard Length ) × 50 g/m

Ex) Distributor type Model 1 Ø, 40 kBtu/h

abc

7 k 9 k 9 k

Standard

length(m)

Additional

refrigerant(g/m)

Standard

length(m)

+ ((Total Branch piping length) – 35 m ) × 20 g/m

• Total main pipe(A+B+C) = 30 m

• Each branch pipe a = 10 m b = 8 m c = 5 m d = 3 m e = 10 m

*Additional Charge

= (30-5) × 50 + ((10+8+5+3+10) - 35) × 20

18 k

= 1270 g

9 k

Additional

refrigerant(g/m)

+ 27 hidden pages