LG AVNQ48GM2A0 INSTALLATION MANUAL

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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.

Single ceiling suspended air conditioner

P/NO : MFL68065208

www.lg.com

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2 TIPS FOR SAVING ENERGY

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 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 :

IMPORTANT SAFETY INSTRUCTIONS 3

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

•Don’t use a power cord, a plug or a loose socket which is damaged.

-Otherwise, it may cause a fire or electrical 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.

•Install the panel and the cover of control box securely.

-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.

•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.

•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 condenser and evaporator.

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

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

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	4	IMPORTANT SAFETY INSTRUCTIONS
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	• Do not install the product on a defective installation stand.
	- It may cause injury, accident, or damage to the product.
	• 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, and personal injury.
	• Do not turn on the breaker or power under condition that front panel, cabinet, top cover, con-
	trol box cover are removed or opened.
	- Otherwise, it may cause fire, electric shock, explosion or death.

Operation

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

! CAUTION

Installation

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

-Low refrigerant levels may cause failure of product.

•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.

•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.

•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

Batteries :

Do not burn, do not try to open it, do not dispose in ordinary trash. Preserve environment and your health.

After use, batteries must be delivered to the merchant or service authorized network (Conama number 401 dated 11/2008).

					TABLE OF CONTENTS	5
	TABLE OF CONTENTS
	2	TIPS FOR SAVING ENER-	14		TEST RUNNING
		GY
			14		Precautions in test running
	3	IMPORTANT SAFETY	14		Check the following items when installa-
					tion is complete
		INSTRUCTIONS
			14		Connection of power supply
	6	INSTALLATION PLACES	14		Evaluation of the performance
			15		Hand over

7THE INDOOR UNIT INSTALLATION

8Open side-cover

9Mounting the anchor nut and bolt

11 Indoor unit drain piping

11 Drain piping

11Drain test

12Heat insulation

12 Connecting cables to the indoor unit

12 Wiring connection

16INSTALLATION INSTRUCTIONS

16Installer setting - how to enter installer setting mode

17Installer setting - installer setting code table

17Installer setting code table

18Installer setting - setting address of central control

18Installer setting - checking address of central control

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6 INSTALLATION PLACES

INSTALLATION PLACES

Indoor unit

Ceiling suspended type

-There should not be any heat source or steam near the unit.

-There should not be any obstacles to prevent the air circulation.

-A place where air circulation in the room will be good.

-A place where drainage can be easily obtained.

-A place where noise prevention is taken into consideration.

-Do not install the unit near the door way.

-Ensure the spaces indicated by arrows from the wall, ceiling, or other obstacles.

-The indoor unit must keep the maintenance space.

10 (13/32) or more

300 (11 – 13/16) or more

2500 (98 – 3/7) or more

Floor

700(27 – 9/16) or more

700(27 – 9/16) or more

THE INDOOR UNIT INSTALLATION	7

THE INDOOR UNIT INSTALLATION

Air conditioner

Take enough distance

Use the ventilation fan for smoke-collecting hood with sufficient

	Cooking table	capacity.
! CAUTION	! NOTE

•Install the unit horizontally using a level gauge.

•During the installation, care should be taken not to damage electric wires.

•Select and mark the position for fixing bolts and piping hole.

•Decide the position for fixing bolts slightly tilted to the drain direction after considering the direction of drain hose.

•Drill the hole for anchor bolt on the ceiling.

•Avoid the following installation location. 1. Such places as restaurants and kitchen

where considerable amount of oil steam and flour is generated.

These may cause heat exchange efficiency reduction, or water drops, drain pump mal-function.

In these cases, take the following actions;

•Make sure that ventilation fan is enough to cover all noxious gases from this place.

•Ensure enough distance from the cooking room to install the air conditioner in such a place where it may not suck oily steam.

2.Avoid installng air conditioner in such places where cooking oil or iron powder is generated.

3.Avoid places where inflammable gas is generated.

4.Avoid place where noxious gas is generated.

5.Avoid places near high frequency generators.

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8 THE INDOOR UNIT INSTALLATION

Open side-cover	Step 4
Step 1

- Remove paper bracket from side-cover.

- Remove two screws from side-cover.

Step 2

Right side cover

Left side

Backside

cover

Backside

-Unlock side-cover from side-panel slightly (Tap the side-cover with your palm on the backside)

Step 5

-Knock out the pipe hole from the left sidecover with nipper/plier.

! CAUTION

Hold the side-cover with other hand while tapping to prevent it to fall down.

Step 3

- Remove bracket from side-panel.

THE INDOOR UNIT INSTALLATION 9

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.

			(Unit : mm)
			A	B
VM1 AVNQ36GM1A0			1018
	AVNQ48GM2A0			355
VM2			1418
	AVNQ60GM2A0
	Anchor nut
Ceiling
Nut	Washer	A		B
Suspension
bolts
		Suspension bolt

Suspension bolts

Spring washer Nut

Hanger

Max. Washer 12mm

Hanging bolt (W3/8 or M10)

Nut

(W3/8 or M10)

Spring washer (M10)

Flat washer

for M10

(accessory)

Flat washer for M10 (accessory)

Nut

(W3/8 or M10)

- The following parts is option.

Hanging Bolt	- W 3/8 or M10
Nut	- W 3/8 or M10
Spring Washer - M10
Plate Washer	- M10

! CAUTION

Tighten the nut and bolt to prevent unit from falling

•Drill the piping hole on the wall slightly tilted to the outdoor side by using a Ø 70 hole-core drill.

Wall

Indoor

Outdoor

Slope gradient for drain Should be 1/50 ~ 1/100

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10 THE INDOOR UNIT INSTALLATION

! CAUTION

Installation information for declination

-Install declination of the indoor unit is very important for the drain of the convertible type air conditioner.

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

-If the Installation Plates are fixed to horizontal line, the indoor 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 20 mm inclined in drain direction as shown in fig.

Ceiling

10~20 mm

Side of view

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

Ceiling

5~10 mm

THE INDOOR UNIT INSTALLATION 11

Indoor unit drain piping

-Drain piping must have down-slope (1/50 to 1/100): be sure not to provide up-and-down slope to prevent reversal flow.

-During drain piping connection, be careful not to exert extra force on the drain port on the indoor unit.

-Remove the rubber stopple before connecting drain hose.

-Hook on the bracket after connecting the drain hose as below.

Drain hose

Bracket

- Do not make drain piping like the following.

Do not raise

Water

leakage

Accumulated

drain water

Air

	Water	Waving
	leakage

	Tip of drain	Less than
	hose dipped
	in water	50 mm gap
Water
leakage	Ditch

-Be sure to execute heat insulation on the drain piping.

Heat insulation material: Polyethylene foam with thickness more than 8 mm.

Drain piping

-The drain hose should point downward for easy drain flow.

Downward

slope

Drain test

Use the following procedure to test the drain pump operation:

-Set the air direction louvers up-and-down to the position(horizontally) by hand.

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

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

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12 THE INDOOR UNIT INSTALLATION

Heat insulation

Use the heat insulation material for the refrigerant piping which has an excellent heat-resis- tance (over 120 °C).

Precautions in high humidity circumstance: This air conditioner has been tested according to the "KS Standard Conditions with Mist" and confirmed that there is not any default. However, if it is operated for a long time in high humid atmosphere (dew point temperature: more than 23 °C), water drops are liable to fall. In this case, add heat insulation material according to the following procedure:

Fastening band

Refrigerant piping

Indoor unit

Thermal insulator

-Heat insulation material to be prepared...

Adiabatic glass wool with thickness 10 to 20 mm.

-Stick glass wool on all air conditioners that are located in ceiling atmosphere.

Connecting cables to the indoor unit

-Remove the control box cover for electrical connection between the indoor and out door unit

-Use the cord clamper to fix the cord.

Wiring connection

Connect the wires to the terminals on the control board individually according to the outdoor unit connection.

1(L) 2(N) 3

1(L) 2(N) 3

!CAUTION

•The connecting cable connected to the indoor and outdoor unit should be complied with the following specifications (Rubber insulation, type H05RN-F approved by HAR or SAA).

	NORMAL
	CROSS-SECTIONAL
GN	AREA 0.75 mm2
/YL
	20 m
	m

•If the supply cord is damaged, it must be replaced by a special cord or assembly available from the manufacturer of

its service agent.

Control box cover

Precautions when laying power wiring

Use round pressure terminals for connections to the power terminal block.

Power wire Round pressure terminal

When none are available, follow the below instruction

-Do not connect wiring of different thicknesses to the power terminal block. (Slack in the power wiring may cause abnormal heat.)

-When connecting wiring which is the same thickness, do as shown in the figure below.

Connect same thickness wiring to both sides.

THE INDOOR UNIT INSTALLATION 13

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It is forbidden to

It is forbidden to

connect two to one

connect wiring of

side.

different thicknesses.

-For wiring, use the designated power wire and connect firmly, then secure to prevent outside pressure being exerted on the terminal block.

-Use an appropriate screwdriver for tightening the terminal screws. A screwdriver with a small head will strip the head and make proper tighterning impossible.

-Over-tightening the terminal screws may break them.

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14 TEST RUNNING

TEST RUNNING				M4......118 N.cm {12 kgf.cm}
				M5......196 N.cm {20 kgf.cm}
Precautions in test running				M6......245 N.cm {25 kgf.cm}
- The initial power supply must provide at				M8......588 N.cm {60 kgf.cm}
least 90 % of the rated voltage.
Otherwise, the air conditioner should not be				Connection of power supply
operated.
				Connect the power supply cord to the inde-
	!	CAUTION
				pendent power supply.
	• For test run, carry out the cooling oper-			- Circuit breaker is required.
	ation firstly even during heating season.			Operate the unit for 15 minutes or more.
	If heating operation is carried out firstly,
	it leads to the trouble of compressor.
	Then attention must be paid.			Evaluation of the performance

•Carry out the test run more than 5 minutes without fail.

(Test run will be cancelled 18 minutes later automatically)

-To cancel the test run, press any button.

Measure the temperature of the intake and discharge air.

Ensure the difference between the intake temperature and the discharge one is more than 8 °C (Cooling) or reversely (Heating).

Check the following items when installation is complete

After completing work, be sure to measure and record trial run properties, and store measured data, etc.

Measuring items are room temperature, out-

side temperature, suction temperature, blow Thermometer out temperature, wind velocity, wind volume,

voltage, current, presence of abnormal vibration and noise, operating pressure, piping temperature, compressive pressure.

As to the structure and appearance, check following items.

-Is the circulation of air adequate?

-Is the draining smooth?

-Is the heat insulation completed (refrigerant and drain piping)?

-Is there any leakage of refrigerant?

-Is the remote controller switch operated?

-Is there any faulty wiring?

-Are not terminal screws loosened?

TEST RUNNING 15

!	CAUTION	Hand over

After the confirmation of the above conditions, prepare the wiring as follows:

•Never fail to have an individual power specialized for the air conditioner. As for the method of wiring, be guided by the circuit diagram pasted on the inside of control box cover.

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

•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 burnout of the wires.)

•Specification of power source.

•Confirm that electrical capacity is sufficient.

•Be sure that the starting voltage is maintained at more than 90 percent of the rated voltage marked on the name plate.

•Confirm that the cable thickness is as specified in the power sources specification.

(Particularly note the relation between cable length and thickness.)

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

•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.

-Proper starting power is not given to the compressor.

•Use only 1 remote-controller contained in indoor unit, when you combine to use both ceiling suspended type indoor unit and different Indoor units combinations.

Teach the customer the operation and maintenance procedures, using the operation manual (air filter cleaning, temperature control, etc.).

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16 INSTALLATION INSTRUCTIONS

INSTALLATION INSTRUCTIONS

Installer setting - how to enter installer setting mode

! CAUTION

Installer setting mode is to set the detail function of the remote controller.

If the installer setting mode is not set correctly, it can cause problems to the product, user injury or property damage. This must be set by an certificated installer, and any installation or change that is carried out by a non-certificated person should be responsible for the results. In this case, free service cannot be provided.

1 With the JET COOL button pressed, press the RESET button.

2 By using the TEMPERATURE SETTING button, set function code and setting value. (Please refer the Intaller setting code table.)

3 Press the ON/OFF button toward the indoor unit 1 time.

4 Reset the remote controller to use the general operation mode.

Refer to the Intaller setting code table

on the next page.

RESET

INSTALLATION INSTRUCTIONS 17

Installer setting - installer setting code table

Installer setting code table

No.	Function	Function code		Setting value	Remote controller LCD
0	Mode override	0	0	: Set to master
			1	: Set to slave
			1	: Standard
1	Ceiling height	1	2	: Low
	Selection		3	: High
			4	: Super high
			0	: Set to master
		2
	Group control		1 : Set to slave
2			2	: Check master/slave
			3	: Set to auxiliary heater
		2
	Auxiliary heater		4 : Cancel auxiliary heater
			5	: Check auxiliary heater Installation

Mode override

This function is only for Non-Auto changeover H/P model.

Ceiling height selection

Indoor unit connected to wired remote controller operate as wired remote controller setting. only for ceiling cassette type.

Group control (optional)

This function is only for group control. Please don’t set this function in case of non-group control.

After setting group control of the product, turn off the power then turn it back on after 1 minute.

Auxiliary heater

This function is only applied to models with auxiliary heater function being activated.

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