LG YCNB036AAB0 User guide

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INSTALLATION MANUAL

ITALIANO

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 : LG Decorative Type Fan Coil Unit

P/NO : MFL39192001

MSZEF0032

www.lg.com

2 Fan Coil Unit

Fan Coil Unit Installation Manual

TABLE OF CONTENTS

FOR YOUR RECORDS

Write the model and serial numbers here:

Model # Serial #

You can find them on a label on the side of each unit.

Dealer's Name Date Purchased

■

Staple your receipt to this page in the event you need it to prove date of purchase or for warranty issues.

READ THIS MANUAL

Inside you will find many helpful hints on how to use and maintain your air conditioner properly. Just a little preventive care on your part can save you a great deal of time and money over the life of your air conditioner.

You'll find many answers to common problems in the chart of troubleshooting tips. If you review our chart of

Troubleshooting Tips first, you may not need to call for service at all.

PRECAUTION

• Contact the installer for installation of this unit.

• The unit is not intended for use by young children or invalids without supervision.

• Young children should be supervised to ensure that they do not play with the unit.

• When the power cord is to be replaced, replacement work shall be performed by authorized personnel only using only genuine replacement parts.

• Installation work must be performed in accordance with the National Electric Code by qualified and authorized personnel only.

Safety Precautions.................3

Care and maintenance...........8

Before you call for service ..10

Installation ............................11

Installation Manual 3

Safety Precautions

To prevent injury to the user or other people and property damage, the following instructions must be followed.

Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications.

Meanings of symbols used in this manual are as shown below.

This symbol indicates the possibility of death or serious injury.

This symbol indicates the possibility of injury or damage.

Be sure not to do.

Be sure to follow the instruction.

WARNING

Installation

Do not use a defective or underrated circuit breaker. 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.

Always install a dedicated circuit and breaker.

• Improper wiring or installation may cause fire or electric shock

Use the correctly rated breaker or fuse.

• There is risk of fire or electric shock.

Do not modify or extend the power cable.

• There is risk of fire or electric shock.

WARNING

CAUTION

4 Fan Coil Unit

Do not store or use flammable gas or combustibles 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.

When flammable gas leaks, turn off the gas and open a window for ventilation before turn the product on.

• Do not use the telephone or turn switches on or off. There is risk of explosion or fire

Safety Precautions

Operation

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

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

Be cautious when unpacking and installing the product.

• Sharp edges could cause injury. Be especially careful of the case edges and the fins on the evaporator.

For installation, always contact the dealer or an Authorized Service Center.

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

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 let the unit run for a long time w hen the humidity is very high and a door or a window is left open

• Moisture may condense and wet or damage furniture.

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.

Gasolin

Installation Manual 5

Safety Precautions

If strange sounds, or small or smoke comes from product. Turn the breaker off or disconnect the power supply cable.

• There is risk of electric shock or fire.

Stop operation and close the window in storm or cyclone. If possible, remove the product from the window before the cyclone arrives.

• There is risk of property damage, failure of product, or electric shock.

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 enter the product.

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

Ventilate the product from time to time when operating it together with a stove, etc.

• There is risk of fire or electric shock.

Turn the main power off when cleaning or maintaining the product.

• There is risk of electric shock.

When the product is not 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.

Safety Precautions

6 Fan Coil Unit

Installation

CAUTION

Operation

Use two or more people to 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. Corrosion, particularly on the condenser and evaporator fins, could cause product malfunction or inefficient operation.

Do not expose the skin directly to cool air for long periods of time. (Don't sit in the draft.)

• This could harm to your health.

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.

After installing, the water leakage test should be perfrmed.

• A bad connection may cause water leakage.

Install the drain hose to ensure that water is drained away properly.

• A bad connection may cause water leakage.

Keep level even when installing the product.

• To avoid vibration or water leakage.

90 °

Safety Precautions

Installation Manual 7

Use a soft cloth to clean. Do not use harsh detergents, solvents, 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. They are very sharp!

• There is risk of personal injury.

Always insert the filter securely. Clean the filter every two weeks or more often if necessary.

• A dirty filter reduces the efficiency of the air conditioner and could cause product malfunction or damage.

Do not insert hands or other objects through the air inlet or outlet while the product is operated.

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

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 or maintaining the product.

• Be careful and avoid personal injury.

Thinner

Care and maintenance

Caution: Before performing any maintenance,turn off the main power to the system.

UnitFan coil

Turn the system off before cleaning. To clean, wipe with a soft, dry cloth. Do not use bleach or

abrasives. Note: Supply power must be disconnected before cleaning the unit.

Air Filter

The air filters (the suction side) should be checked and cleaned once every 2 weeks or more often if necessary.

Air outlet vent

Air filters

Never use any of the followings:

• Water hotter than 40 ° C Could cause deformation and/or discoloration.

• Volatile substances Could damage the surfaces of the air conditioner.

Clean the filter with a vacuum or warm, soapy

water.

• If very dirty, wash with a solution of detergent in lukewarm water.

After washing with water, dry well in the shade.

Re-install the air filter.

8 Fan Coil Unit

Care and maintenance

Installation Manual 9

 Check that the air inlet and outlet of the

unit are not blocked.

Do not overcool the room.

This is not good for the health and wastes electricity.

Keep blinds or curtains

closed.

Do not let direct sunshine enter the room when the unit is in operation.

Make sure that the doors

and windows are shut tight.

Avoid opening doors and windows as much as possible to keep the cool air in the room.

Clean the air filter regularly.

Blockages in the air filter reduce the airflow and lower cooling and dehumidifying effects. Clean at least once every two weeks.

Ventilate the room

occasionally.

Since windows are kept closed, it is a good idea to open them and ventilate the room now and then.

Turn off the circuit breaker.

Whentheunitisnotgoingtobeusedforalongtime.

When it is not going to be used for

Operate the unit on Air circulation mode for 2 to 3 hours.

¥This will dry out the internal parts.

a long time.

CAUTION:

breaker when the air conditioner is not goingtobeusedforalongtime.

Dirt may collect and may cause a fire.

Turn off the circuit

Operation Tips

When the unit is to be used again.

Helpful information

The air filters and your electiric bill. If the air filters become clogged with dust, the cooling capacity will drop, and 6% of the electricity used to operate the air conditioner will be wasted.

Before you call for service...

10 Fan Coil Unit

Check the following points before requesting repairs or service.... If the malfunction persist, please contact your

dealer.

The unit does not operate.

The room has a peculiar odor.

Does not cool or heat effectively.

4, 5, 7

• Has the fuse blown or has the circuit breaker been tripped?

• Check that this is not a damp smell exuded by the walls, carpet, furniture or cloth items in the room.

• Is the air filter dirty? See air filter cleaning instructions.

• The room may have been very hot when the unit was first turned on. Allow time for it to cool down.

• Are the indoor unit's air inlet or outlet vents obstructed?

Case Explanation See page

Before you call for service...

Troubleshooting Tips! Save time and money!

Installation

Selection of the best location

Ceiling Suspended

1. Do not have any heat or steam near the unit.

2. Select a place where there are no obstacles in front of the unit.

3. Make sure that condensation drainage can be conveniently routed away.

4. Do not install near a doorway.

5. Ensure that the interval between a wall and the left (or right) of the unit is more than 70cm.

6. Use a stud finder to locate studs to prevent unnecessary damage to the wall.

Floor Stand

Install the air conditioner in the location that satisfies the following conditions.

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

• Sufficient space should be available to inspect the unit as in the figure shown on the right.

• The place where the unit is installed shall be leveled.

• The place shall be suitable for easy connection of the water

pipe.

• The place where the unit is installed should not be affected by 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

Installation

More than

70cm

More than

70cm

More than

30cm

ENGLISH

Window

20 or

100 or

Air flow

Front side

1000 or

100 or

direction

Air inlet

direction

Installation Manual 11

Base

175 or

Installation

Preparing Work for Installation

Remove Front Panel

1.Remove screws both left and right from the lid as shown in figure 1 .

2.Open the lid,then you can find another 4 screws(both left and right).

3.Remove screws from the front panel (both left and right)

4.Remove the front panel carefully

To assembly,perform the procedure in opposite order.

Install Leg Base (For floor standing type)

According to the picture, install the Leg Base (Both left and right).

Fan Coil Unit

Leg Base (Accessory)

Installation

MOUNTING THE ANCHOR NUT AND BOLT

• Prepare 4 suspension bolts. (Each bolts length should be same.)

• Measure and mark the position for the Suspension bolts and the piping hole.

• Drill the hole for anchor nut on the ceiling.

• Insert the nuts and washer onto the

suspension bolts for locking the suspension bolts on the ceiling.

• Mount the suspension bolts to the anchornuts firmly.

• Secure the hangers onto the Suspension bolts (adjust level roughly.) using nuts, washers and spring washers.

• Adjust a level with a level gauge on the direction of left-right, back-forth by adjusting suspension bolts.

• Adjust a level on the direction of top-bottom by adjusting supension bolts. Then the unit will be declined to the bottomside so as to drain well.

MODEL

DIM.

036 046

066

086/106

A B

672

822 1022 1322

126 1622 221

Anchor nut

Ceiling

Nut

Washer

Suspension

bolts

Hangen

221 221

Suspension

Spring washer

Max.

12mm

bolts

Nut

Washer

Tighten the nut and bolt to prevent unit

falling.

Installation Manual 13

Installation

Fan coil unit installation

Hang the Fan Coil unit on suspension bolt as per following guidelines:

1. Lift the fan coil unit to sufficient height.

2. Insert the suspended part of four suspension bolt in the four hangers provided on the side of main body one by one.

3. Lower the fan coil unit till the hangers rest on their respective flat washer.

4. Adjust the level in the top down direction by adjusting the suspension bolts. Inclined the fan coil unit as per direction provided in the fig

: Installation Information For Declination

1. Install declination of the fan coil unit is very important for the drain of the decorative type air conditioner.

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

3. If the Installation Plates are fixed to horizontal line, the fan coil unit after installing will

be declined to the bottomside.

Front of view

•

The unit must be horizontal or inclined at angle. The inclination should be less than or equal to 1 or in between 10 to 20mm inclined in drain

•

direction as shown in fig.

Ceiling

10~20mm

Drain hose

Ceiling

10~20mm

Side of view

The unit must be declined to the bottomside of the unit when finished installation.

•

Ceiling

5~10mm

Fan Coil Unit

Pipe Connect, Insulation

Water pipe Connection and Insulation

All thermal insulation must comply with local requirement the thickness min 20mm.

Installation

Union for water pipe

Elbow pipe

(Local supply)

Drain pipe Ceiling Suspended 1/2"

Floor Standing 3/4" Water valve insulator(Local supply)

Use a spanner to tignten the water pipe. Make sure, the pipe is tightened firmly

Hose clip for thermal insulator(Local supply)

Make sure that there is no clearance here.

Drain piping work

Ceiling Suspended

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

• 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.

Thermal insulator

(Local supply)

Drainage pipe

(Local supply)

Drainage hole Make sure to be closed

Thermal insulator for water pipe (Local supply)

Thermal insulator for

piping(Local supply)

Overlap with thermal insulator for piping.

Clip

(Local supply)

Unit

CORRECT

INCORRECT

Installation Manual 15

Installation

Floor Standing

• Drain piping must have downward (1/50 to 1/100): be sure not to provide up-and-down slope to prevent reverse

flow.

• During drain piping connection, be careful not to exert extra force on the drain port on the fan coil unit.

• The outside diameter of the drain connection on the unit is 20mm.

• Be sure to install heat insulation on the drain piping

Heat insulation material: Polyethylene foam with thickness more than 10 mm.

• If converging multiple dranin pipes, install according to the procedure shown below.

Slope downwards at a gradient of at least 1/100

• After piping work is finished check drainage flows smothly.

• Be sure to insulate all indoor units.

CAUTION:

1) Never fail to have an individual power specialized for the unit. As for the method of wiring, be guided by the circuit diagram pasted on the side panel.

2) Provide a circuit breaker switch between power source and the unit.

3) The screw which fasten the wiring in the casing of electrical fittings are liable to come loose from vibrations to which the unit is subjected during the course of transportation. Check them and make sure that they are all tightly fastened. (If they are loose, it could give rise 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 specification. (Particularly note the relation between cable length and thickness.)

8) Never fail to equip a leakage breaker where it is wet or moist.

9) The following troubles would be caused by voltage drop-down.

• Vibration of a magnetic switch, damage on the contact point there of, fuse breaking, disturbance to the normal

function of a overload protection device.

Fan Coil Unit

Prepare the wiring as follows:

Installation

Connecting Cable to the Fan Coil Unit

Connect the wires to the terminals on the control board individually according to the thermostat.

• Ensure that the color of the wires of unit and the terminal No. are the same as those of unit respectively.

CAUTION

The power cord connected to the unit should be

complied with the following specifications (Rubber insulation, type H05RN-F approved by HAR or SAA).

NORMAL CROSS-SECTIONAL

LY/NG

AREA 1.0 mm

Install Power Cord

mm02

T/B Cover

If the supply cord is damaged, it must be replaced by a special cord or assembly availible from the manufacturer of its service agent.

CAUTION:

Make sure that the screws of the terminal fixed tightly.

Installation Manual

Installation

Three step controller Installation (Ceiling Suspend)

Install the 3-step about 5ft(1.5m) above the floor.

Do not install the controller where it can be affected by:

- Drafts, or dead spots behind doors and in corners.

- Concealed pipes and chimneys.

- Uncontrolled areas such as an outside wall behind the controller.

(The standard height is 1.2~1.5 m from floor level.)

yes

MED

OFF

AIR CONDITIONER

5feet

(1.5meters)

OFF

AIR CONDITIONER

MED

OFF

Floor Standing Type

For Floor stand Type, the 3-step controller installed on the unit. If water pipe is on left side, the controller is on right side, othervise, the controler is on left side. Please open the lid (left or right) then you can find the controller.

ED OF F

O A I R

OF C ON

F D I T

I ON

E R

Fan Coil Unit

Installation Manual 19

Installation

To check the drainage.

1. Pour a glass of water on the evaporator using a kettle.

2. Ensure the water flows through the drain hose of the indoor unit without any leakage and goes out the drain exit.

Checking the Drainage

Water Quality

The standards for cooling water quality

Index

Standard

Item

Reference

Item

PH[25°C] 6.5~8.0

Electric cOnductivity[25°C](µs/cm) Below 800

ChlOride iOn(mgCl-/L) Below 200

Sulfate iOn (mgSO

Acid cOnsumptiOn[PH4.8](mgCaCO3/L) Below 100

Calcium hardness(mgCaCO

Turbidity Below 20

Fe(mgFe/L) Below 1.0

AmmOnium iOn(mgNH4+/L) Below 1.0

IOnic phases silica(mgSiO2/L) Below 50

SaturatiOn index 0.0~1.0

Item Standards

/L) Below 200

/L) Below 150

The influence of water quality

Corrosion

O O

The formation of scale

Installation

Circuit Breaker

Air

Conditioner

Main power source

Circuit Breaker Use a circuit breake or time delay fuse.

Use a recognized circuit breaker between the power source and the unit. A disconnecting device to adequately disconnect all supply lines must be fitted.

Capacity of the Circuit Breaker must lie between MCA and MOP

- MCA = 1.25 x Current of Motor

- MOP = 2.25 x Current of Motor

Water Quality

The standards for adding water quality

Index

Standard Item

Reference Item

PH[25°C] 6.5~8.0

Electric conductivity[25°C](µs/cm) Below 200

Chloride ion(mgCl-/L) Below 50

Sulfate ion (mgSO42-/L) Below 50

Acid consumption[PH4.8](mgCaCO3/L) Below 50

Calcium hardness(mgCaCO3/L) Below 50

Turbidity Below 50

Fe(mgFe/L) Below 50

Ammonium ion(mgNH4+/L) Below 50

Ionic phases silica(mgSiO2/L) Below 50

Item Standards

Fan Coil Unit

LG YCNB036AAB0 User guide

Specifications and Main Features

Frequently Asked Questions

User Manual