LG B30AWYN7G5 Installation Manual

P/NO : MFL62541008

www.lg.com

INSTALLATION MANUAL

AIR CONDITIONER

• 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.

TYPE : CEILING CONCEALED DUCT MODEL : B30AWYN7G5 / B30AWYU4G5 B36AWYN7G5 / B36AWYU4G5 B42AWYN7G5 / B42AWYU3G5 B55AWYN7G5 / B55AWYU3G5

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• Do not cool excessively indoors. This may be harmful for 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 on a label on the side of each unit.

Dealer’s name :

Date of purchase :

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:

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TIPS FOR SAVING ENERGY

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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.

• 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

• Have all electric work done by a licensed electrician according to "Electric Facility Engineering Standard" and "Interior Wire Regulations" and the instructions given in this manual and always use a special circuit.

- If the power source capacity is inadequate or electric work is performed improperly, electric shock

or fire may result.

• 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 contact a dealer or an Authorized Service Center.

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

• Do not install, remove, or re-install the unit by yourself (customer).

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

• Do not store or use flammable gas or combustibles near the air conditioner.

- There is risk of fire or failure of product.

• Use the correctly rated breaker or fuse.

- There is risk of fire or electric shock.

• Prepare for strong wind or earthquake and install the unit at the specified place.

- Improper installation may cause the unit to topple and result in injury.

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

- It may cause injury, accident, or damage to the product.

• 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. Otherwise, it may cause fire or explosion.

- There is the risk of death, injury, fire or explosion.

• 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 mal-

function 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.

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.

• 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 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.

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IMPORTANT SAFETY INSTRUCTIONS

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CAUTION

Installation

• Always check for gas (refrigerant) leakage after installation or repair of product.

- Low refrigerant levels may cause failure of

product.

• Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods.

- It may cause a problem for your neighbors.

• Keep level even when installing the product.

- To avoid vibration or water leakage.

• Do not install the unit where combustible gas may leak.

- If the gas leaks and accumulates around the unit, an explosion may result.

• Use power cables of sufficient current carrying capacity and rating.

- Cables that are too small may leak, generate heat, and cause a fire.

• 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.

• Keep the unit away from children. The heat exchanger is very sharp.

- It can cause the injury, such as cutting the finger. Also the damaged fin may result in degradation of capacity.

• When installting the 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 or image broadcasting.

• Do not install the product where it is exposed to sea wind (salt spray) directly.

- It may cause corrosion on the product. Corrosion, particularly on the condenser and evaporator fins, could

cause product malfunction or inefficient operation.

Operation

• Do not use the air conditioner in special environments.

Oil, steam, sulfuric smoke, etc. can significantly reduce the performance of the air conditioner or damage its parts.

• Do not block the inlet or outlet.

- It may cause failure of appliance or accident.

• Make the connections securely so that the outside force of the cable may not be applied to the terminals.

- Inadequate connection and fastening may generate heat and cause a fire.

• Be sure the installation area does not deteriorate with age.

- If the base collapses, the air conditioner could fall with it, causing property damage, product failure, or person-

al injury.

•

Install and insulate the drain hose to ensure that water is drained away properly based on the installation manual.

- A bad connection may cause water leakage.

• Be very careful about product transportation.

- Only one person should not carry the product if it weighs more than 20 kg.

Some products use PP bands for packaging. Do not use any PP bands for a means of transportation. It is dangerous.

- Do not touch the heat exchanger fins. Doing so may cut your fingers.

- When transporting the outdoor unit, suspending it at the specified positions on the unit base. Also support the

outdoor unit at four points so that it cannot slip sideways.

IMPORTANT SAFETY INSTRUCTIONS

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• Safely dispose of the packing materials.

Packing materials, such as nails and other metal or wooden parts, may cause stabs or other injuries.

Tear apart and throw away plastic packaging bags so that children may not play with them. If children play with a plastic bag which was not torn apart, they face the risk of suffocation.

• Turn on the power at least 6 hours before starting operation.

- Starting operation immediately after turning 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 power switch after stopping operation.

- Wait at least 5 minutes before turning off the main power switch. Otherwise it may result in water leakage or other problems.

• Use a firm stool or ladder when cleaning or maintaining the air conditioner.

- Be careful and avoid personal injury.

• Do not insert hands or other objects through the air inlet or outlet while the air conditioner is plugged in.

- There are sharp and moving parts that could cause personal injury.

2 TIPS FOR SAVING EN-

ERGY

3 IMPORTANT SAFETY IN-

STRUCTIONS

8 INTRODUCTION

8 Features

9 INSTALLATION PLACES

9 Indoor unit

9 Outdoor unit

10 THE INDOOR UNIT IN-

STALLATION

10 Install the unit above the ceiling cor-

rectly.

13 Insulation, others

13 Checking the Drainage

14 PIPING LENGTH AND THE

ELEVATION

15 CONNECTING COPPER

PIPES

15 Preparation of Piping

16 Connecting the pipings to the indoor

unit and drain hose to drain pipe

16 Connecting the pipes to the Outdoor

unit

18 LEAKAGE TEST AND

EVACUATION

18 Preparation

18 Leakage test

19 Evacuation

20 WIRING CONNECTION

20 Electrical Wiring

21 Connecting cables to the Indoor Unit

21 Clamping of cables

23 Connecting the cable to the Outdoor

Unit

24 Connecting the DRED to the Outdoor

unit

25 FORMING THE PIPING 26 REMOTE CONTROLLER

INSTALLATION

26 Point of remote controller installation

27 Locations for remote controller

28 EXTERNAL STATIC PRES-

SURE & FLOW

30 TEST RUNNING

30 Precaution in test running

30 Check the following tiems when installa-

tion is complete

30 Connection of power supply

30 Evaluation of the performance

32 SELF-DIAGNOSIS FUNC-

TION

32 Indoor Unit Error

33 Outdoor Unit Error

34 DIP SWITCH SETTING 35 ACCESSORY INSTALLA-

TION GUIDE

35 Dry Contact(PQDSB1)

36 Installation of PI485 for

30k(PMNFP14A1)

37 Installation of PI485 for

36k/42k/55k(PMNFP14A1)

38 WLAN module installation

(PWFMDD101)

39 Damper Controller(PBZC80)

40 Remote Temperature Sensor(PQRSTA0)

41 Two wired remote controller

42 INSTALLATION GUIDE AT

THE SEASIDE

TABLE OF CONTENTS

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TABLE OF CONTENTS

INTRODUCTION

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Features

INTRODUCTION

Top view

Control box

Air intake vents

Front view

Air outlet vents

Remote Controller

Air intake vents

Air outlet vents

Communication cable

Refrigerant pipe

Drain hose

INSTALLATION PLACES

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Indoor unit

- The place shall easily bear a load exceeding four times the indoor unit’s weight.

- The place shall be able to inspect the unit as the figure.

- The place where the unit shall be leveled.

- The place shall 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 as figure.

Outdoor unit

- 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.

- Ensure that the spaces indicated by arrows around front, back and side of the unit.

- Do not place animals and plants in the path of the warm air.

- Take the air conditioner weight into account and select a place where noise and vibration are minimum.

- Select a place so that the warm air and noise from the air conditioner do not disturb neighbors.

More than 300mm

INSTALLATION PLACES

Top view (unit: mm)

Inspection hole

(600 x 600)

Control box

1000

Front

Sunroof

More than 300mm

More than

300mm

Fence or

obstacles

300mm

More than 600m

More than 700mm

Front view (unit: mm)

H=200 or more

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THE INDOOR UNIT INSTALLATION

Install the unit above the ceiling correctly.

Case1

Position of suspension Bolt

- Apply a joint-canvas between the unit and duct to absorb unnecessary vibration.

- Apply a filter Accessory at air return hole.

Case2

Position of Console Bolt

- A place where the unit will be leveled and that can support the weight of the unit.

- A place where the unit can withstand its vibration.

- A place where service can be easily performed.

- Select and mark the position for fixing bolts.

- Drill the hole for set anchor on the face of ceiling.

Dimension

Capacity (Btu/h)

A B C D E F G H I J K L

30/36/

42/55K

1352 1320 840 287 400 441 563 1172 1365 317 360 40

C B

FDEG

THE INDOOR UNIT INSTALLATION

M10 Nut X 4

M10 SP. washer X 4

M10 washer

M10 washer X 4

M10 SP. washer X 4

M10 Nut

X 4

(Local supply)

THE INDOOR UNIT INSTALLATION

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Tighten the nut and bolt to prevent unit falling.

CAUTION

1 Install declination of the indoor unit is very important for the drain of the duct type air

conditioner.

2 Minimum thickness of the insulation for the connecting pipe shall be 10mm.

CAUTION

CORRECT INCORRECT

- Insert the set anchor and washer onto the suspension bolts for locking the suspension bolts on the ceiling.

- Mount the suspension bolts to the set anchor firmly.

- Secure the installation plates onto the suspension bolts (adjust level roughly) using nuts, washers and spring washers.

• Local supply

① Set anchor ② Plate washer - M10 ③ Spring washer - M10 ④ Nut - W3/8 or M10 ⑤ Suspension bolt - W3/8 or M10

Old building New building

1 Set anchor

2 Plate washer

3 Spring washer 4 Nut

5 Suspension bolts

Ceiling

1~3mm

Drainage hole

Safety drain hole Main drain hole

THE INDOOR UNIT INSTALLATION

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Caution for gradient of unit and drain piping

Lay the drain hose with a downward inclination so water will drain out.

Main drain

- Always lay the drain with downward inclination (1/50 to 1/100). Prevent any upward flow or reverse flow in any part.

- 10mm or thicker formed thermal insulator shall always be provided for the drain pipe.

- Install the P-Trap (or U-Trap) to prevent a water leakage caused by the blocking of intake air filter.

- Upward routing not allowed

Safety drain

- There is no need to provide a trap for the safty drain. If the safty drain pipe is connected to the main drain pipe, make the connection below the trap on the main drain pipe.

- Drill the piping hole with 70mm dia, hole core drill.

- Piping hole should be slightly slant to the outdoor side.

Drain pipe

Make sure to be closed.

Unit

Thermal insulator (Local supply)

Drain pipe

Thermal insulator (Local supply)

Drain pipe

Make sure to be closed.

Unit

Drain pipe (Local supply)

Thermal insulator

(Local supply)

Applied U-Trap Dimension

5~7mm

Indoor Outdoor

WALL

Main drain pipe

Safety drain pipe

A 70mm B 2C C 2 x SP SP = External Pressure (mmAq) Ex) External Pressure = 10mmAq A 70mm B 40mm C 20mm

U-Trap

THE INDOOR UNIT INSTALLATION

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Insulation, others

Insulate the joint and tubes completely. Thermal insulation : All thermal insulation

must comply with local requirement.

Indoor unit

Refrigerant pipe

- Insulate and tape the refrigerant pipe.

Test and check

* After all workings are finished, check the

working and operation.

- Air distribution : Is the air circulation good?

- Drain : Is the drainage smoothly and no sweating?

- Gas leakage : Is the piping connection correctly?

- Wiring : Is the wiring connection correctly?

- Lock-bolt : Is the lock-bolt of compressor loosened?

Checking the Drainage

* Check the drainage.

- Spray one or two glasses of water upon the evaporator.

- Ensure that water flows drain hose of indoor unit without any leakage.

Cutting line of insulation must look upper direction. Thickness of insulation is 10mm or over.

CAUTION

NOTE

Recommended Insulation material Meterial : FOAM PE Thickness : 10mm Density : less than 0.032 ±0.005(g/cm2) Thermal conductivity : less than

0.03(kcal/m.hr.°C)

Union for liquid pipe

Union for gas pipe

Thermal insulator for refrigerant pipe (Local supply)

Hose crip for thermal insulator(Local supply)

Make sure that there is no clearance here.

Thermal insulator for piping(Local supply)

Overlap with thermal insulator for piping.

Communication cable

Liquid pipe

Refrigerant pipe and thermal insulator (Local supply)

Hose crip for thermal insulator (Local supply)

Thermal insulator for refrigerant pipe (Local supply)

Tape

Gas pipe

Thermal insulator

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