LG FBNC608RSA0 Owner’s Manual

CEILING DUCT TYPE AIR CONDITIONERS

INSTALLATION INSTRUCTIONS

(Refrigerant : R407C)

•This unit is charged with new refrigerant, R407C.

•Be sure to use proper tools for R407C, when installing the unit.

•Please read this instruction sheet completely before installing the product.

•When the power cord is damaged, replacement work shall be performed by authorized personnel only.

•Installation work must be performed in accordance with the national wiring standards by authorized personnel only.

	Indoor Unit
		Air outlet vents	Air filters
		Air intake vents
		Remote Controller
	Outdoor Unit	(Side)	(Rear)
		Air intake vents
		Air outlet vents
			Control cover
	(Side)	(Rear)	Connecting wire
			Piping
	Air intake		Drain hose
	vents	Control Cover
	Air outlet	Connecting Wire
	vents	Connection Pipe
		Drain Hose
			P/No.:MFL65000405

OUT-LINE OF INSTALLATION
1. The following should be always observed for safety		..............................3
Installation works	Installation Parts	Required tools

2. Installation of Indoor, Outdoor unit

1)	Selection of the best		• Four Type “A” screws
	location............................	4	• Connecting cable
2)	Indoor unit installation....	5

•Level

•Screw driver

•Electric drill

•Hole core drill (ø70mm)

3. Connecting Pipes to the Indoor Unit

1) Preparation of Piping...14	• Pipes: Gas side	5 8	3 4	• Flaring Tools set
		..... / ",	/ "
	Liquid side .............	1/4", 3/8", 1/2"

•Insulated drain hose

•Insulation materials

4.Connecting Pipes to the Outdoor Unit

1) Connecting the pipes to				• Additional Drain hose
		the Outdoor Unit ..........	16	(Inner Dia...............	25mm)
5.	Checking the Drainage ..............................................................................					16
6.	Connecting Cables between Indoor Unit and Outdoor Unit
1)		Connecting cables to the			• Screw driver
		Indoor Unit ...................	17
2)		Clamping of cables ......	17
3)		Connecting cables to the
		Outdoor Unit ................	18
4)		Form the pipings ..........	19
7.	Air Purging of the Connecting Pipes and the Indoor Unit ....................					20
					• Hexagonal Wrench (4mm/5mm)
					• Gas-leak Detector
8.	Group Control ............................................................................................					21
9.	Two Thermistor System			............................................................................		21
10. E.S.P (External Static Pressure) Setting................................................						22
10. How to Set E.S.P......................................................................................						23

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1.The following should be always observed for safety

•Please report to or take consent by the supply authority before connecting to the system.

•Be sure to read "THE FOLLOWING SHOULD BE ALWAYS OBSERVED FOR SAFETY" before installing the air conditioner.

•Be sure to observe the cautions specified here as they include important items related to safety.

•The indications and meanings are as follows.

WARNING Could lead to death, serious injury, etc.

CAUTION Could lead to serious injury in particular environments when operated incorrectly.

•After reading this manual, be sure to keep it together with the owner's manual in an accessible place.

WARNING

Do not install it yourself (customer).

•Incomplete installation could cause injury due to fire, electric shock, the unit falling or a leakage of water. Consult the dealer from whom you purchased the unit or special installer.

Install the unit securely in a place which can bear the weight of the unit.

•When installed in an insufficient strong place, the unit could fall causing injured.

Use the specified wires to connect the indoor and the outdoor units securely and attach the wires firmly to the terminal board connecting sections so the stress of the wires is not applied to the sections.

• Incomplete connecting and fixing could cause fire.

Check that the refrigerant gas do not leak after installation is completed.

Perform the installation securely referring to the installation manual.

•Incomplete installation could cause a personal injury due to fire, electric shock, the unit falling or a leakage of water.

Perform electrical work according to the installation manual and be sure to use an exclusive circuit.

•If the capacity of the power circuit is insufficient or there is incomplete electrical work, it could result in a fire or an electric shock.

Attach the electrical part cover to the indoor unit and the service panel to the outdoor unit securely.

•If the electrical part cover if the indoor unit and/or the service panel if the outdoor unit are not attached securely, it could result in a fire or electric shock due to dust, water, etc.

Be sure to use the part provided or specified parts for the installation work.

•The use of defective parts could cause an injury or leakage of water due to a fire, electric shock, the unit falling, etc.

CAUTION

Perform the drainage/piping work securely according to the installation manual.

•If there is a defect in the drainage/piping work, water could drop from the unit and household goods could be wet and damaged.

Do not install the electric heater

•Electric heater may cause deformation or fire of blower and housing which were made of plastic.

Do not install the unit in a place where an inflammable gas leaks.

•If gas leaks and accumulates in the area surrounding the unit, it could cause an explosion.

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2. Installation of Indoor, Outdoor Unit
1. Selection of the best location	Top view				Inspection hole
1) Indoor unit					(600X600)
	(unit: mm)				Control box
Select location
Install the air conditioner in the location that
satisfies the following conditions.			600		<![if ! IE]> <![endif]>1000	600
• The place shall easily bear a load exceeding
four times the indoor unit’s weight.					Front
• The place shall be able to inspect the unit as	Front view
the figure.
• The place where the unit shall be leveled.
• The place shall allow easy water
drainage.(Suitable dimension “H” is necessary					H
to get a slope to drain as figure.)			Sun
• The place shall easily connect with the					r
outdoor unit.	More
• The place where the unit is not affected by an	30cm				oof
electrical noise.
• The place where air circulation in the room will	Fence
• There should not be any heat source or steam
be good .	obstacles					30cm
near the unit		or				More than
2) Outdoor unit					More than
					70cm
• If an awning is built over the unit to prevent		Sunr
direct sunlight or rain exposure, be careful
that heat radiation from the condenser is not
restricted.	More			oof
• There should not be any animals or plants	30cm
which could be affected by hot air
discharged.
• Ensure the spaces indicated by arrows from	obstacles					30cm
the wall, ceiling, fence or other obstacles.	Fence	or				More than
3) Piping length and the elevation					More than
					70cm

		Pipe Size		Length A(m)		Elevation B(m)		*Additional
	Capacity	(Diameter: Ø)						refrigerant
		Gas	Liquid	Standard	Max.	Standard	Max.	(g/m)
	18K BTU/h	5/8"	1/4"	7.5	30	5	15	15
	24K BTU/h	5/8"	1/4"	7.5	30	5	15	25
	30K BTU/h	5/8"	1/4"	7.5	30	5	15	35
	36K BTU/h	5/8"	3/8"	7.5	30	5	15	30
	42K BTU/h	5/8"	3/8"	7.5	30	5	15	30
	48K BTU/h	5/8"	3/8"	7.5	30	5	15	45
	60K BTU/h	3/4"	1/2"	7.5	30	5	15	75

•If 18K Model is installed at a distance of 15m, 112.5g of refrigerant should be added (15-7.5) x 15g = 112.5g

•Capacity is based on standard length and maximun allowance length is on the basis of reliability.

•Improper refrigerant charge may result in abnormal cycle.

Indoor unit

A

B

Outdoor unit

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2. Indoor unit installation

■Installation of Unit

Install the unit above the ceiling correctly.

CASE 1

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.

(Unit:mm)

	Dimension
	Capacity	A	B	C	D	E	F	(G)	H	I
	18K BTU/h	932	880	355	45.5	450	30	87	750	160
	24K BTU/h
	30K BTU/h
	36K BTU/h	1233 1180		355	45.5	450	30	87	830	184
	42K BTU/h
	48K BTU/h	1281 1230		477	56	590	30	120	1004 294
	60K BTU/h

CASE 2

•Install the unit leaning to a drainage hole side as a figure for easy water drainage.

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.

A
B
	<![if ! IE]> <![endif]>C E
	<![if ! IE]> <![endif]>D
(G)	<![if ! IE]> <![endif]>F
<![if ! IE]> <![endif]>I	<![if ! IE]> <![endif]>1~3mm
H
Drainage hole

	M10 Nut	X 4	(Local
	M10 SP. washer X 4
			supply)
	M10 washer	X 4
	M10 washer	X 4	(Local
	M10 SP. washer X 4
			supply)
	M10 Nut	X 4

5

•Select and mark the position for fixing bolts.

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

•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.

CAUTION

prevent

Old building		New building
1	Set anchor
2	Plate washer
3	Spring washer
4	Nut
5 Suspension
	bolts
• Local supply
Set anchor
Plate washer		- M10
Spring washer		- M10
Nut		- W3/8 or M10
Suspension bolt		- W3/8 or M10

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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 5mm.

Front of view

•The unit must be horizontal or declined to the drain hose connected when finished installation.

		Ceiling
		<![if ! IE]> <![endif]>1~3mm
CORRECT	Drainage hole	INCORRECT	Drainage hole

CAUTION FOR GRADIENT OF UNIT AND DRAIN PIPING

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.

•5mm or thicker formed thermal insulator shall always be provided for the drain pipe.

	Thermal insulator
	(Local supply)
	Drainage pipe
Unit	(Local supply)
Make sure to be closed.	Drainage hole

• Upward routing not allowed

CORRECT	INCORRECT
	Applied U-Trap Dimension

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

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

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Thermal insulator for piping(Local supply)

• Drill the piping hole with 70mm dia, hole
				WALL
core drill.		Indoor				Outdoor

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

5~7mm

INSULATION, OTHERS

Insulate the joint and tubes completely.

THERMAL INSULATION All thermal insulation must comply with local requirement.

INDOOR UNIT

Union for liquid pipe

Refrigerant pipe and thermal

insulator(Local supply)

Hose clip for thermal insulator (Local supply)

Thermal insulator for refrigerant pipe (Local supply)

Union for gas pipe

Thermal insulator for refrigerant pipe (Local supply)

Overlap with thermal

insulator for piping.

Hose clip for thermal insulator(Local supply) Make sure that there is no clearance here.

REFRIGERANT PIPE

•Insulate and tape both the gas piping and liquid piping.

TEST AND CHECK

Power cable	Tape
Liquid pipe	Gas pipe
Thermal insulator

■ 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?

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