LG PQRCVSL0 User manual

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.
P/NO : MFL67798113
www.lg.com
TYPE : Floor Standing
Concealed Floor Standing
MAGYAR
БЪЛГАРСKN
SRPSKI
HRVATSKI SVENDKA
ENGLISH ITALIANO ESPAÑOL
FRANÇAIS
DEUTSCH
ΕΛΛΗΝΙΚΆ
ČEŠTINA
NEDERLANDS
POLSKI
LIMBA ROMÂNĂ
PORTUGUESE

2Indoor Unit
Floor Standing Concealed Floor Standing Type Indoor Unit Installation Manual
TABLE OF CONTENTS
oFour type "A" screws
oConnecting cable
oPipes: Gas side
Liquid side
(Refer to Product Data)
oInsulation materials
oAdditional drain pipe
oLevel gauge
oScrew driver
oElectric drill
oHole core drill
oFlaring tool set
oSpecified torque wrenches
(different depending on model No.)
oSpanner.......Half union
oA glass of water
oScrew driver
oHexagonal wrench
oGas-leak detector
oVacuum pump
oGauge manifold
oOwner's manual
oThermometer
Safety Precautions.................3
Introduction.............................6
Installation
Selection the best location....7
Preparation of Piping.............9
Drain piping work.................11
How to connect wirings.......12
Wiring Connection...............12
Installation of Wired
Remote Controller...............14
Name and function of wired
remote controller(Accessory) ...16
Dip Switch Setting ...............17
Group Control Setting .........18
Installation Requirements Required Parts Required Tools

Safety Precautions
Safety Precautions
To prevent injury to the user or other people and property damage, the following instructions must be
followed.
nBe sure to read before installing the air conditioner.
nBe sure to observe the cautions specified here as they include important items related to safety.
nIncorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classi-
fied by the following indications.
nMeanings of symbols used in this manual are as shown below.
WARNING
CAUTION
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage to properties only.
Be sure not to do.
Be sure to follow the instruction.
WARNING
nInstallation
Do not use a defective or
underrated circuit breaker.
Use this appliance on a dedi-
cated circuit.
• There is risk of fire or elec-
tric 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 elec-
tric 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 break-
er or fuse.
• There is risk of fire or electric
shock.
Installation Manual 3
ENGLISH

4Indoor Unit
Safety Precautions
nOperation
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 evapo-
rator.
For installation, always con-
tact 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.
• 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 store or use flammable gas or combustibles near the product.
• There is risk of fire or failure of 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.

Safety Precautions
Always check for gas (refrig-
erant) leakage after installa-
tion 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 evapora-
tor fins, could cause product
malfunction or inefficient opera-
tion.
CAUTION
nInstallation
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.
Installation Manual 5
ENGLISH

Introduction
6Indoor Unit
Introduction
Remote Controller
Air Outlet
Control panel
Control panel
Air Filter
Air Inlet
Air Inlet
Air filter
(At Air Inlet)
RemoteController
TEMP
Symbols Used in this Manual
Features
[CEA/CFA Type]
[CEU/CFU Type]
This symbol alerts you to the risk of electric shock.
This symbol alerts you to hazards that could cause harm to the air
conditioner.
This symbol indicates special notes.
NOTICE

Installation
Installation
Selection of the best location
Indoor unit
Install the air conditioner in the location that satis-
fies the following conditions.
• The place shall easily bear a load exceeding four
times the indoor unitʼs 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 lev-
eled.
• The place shall be suitable for easy connection of
the indoor unit with the outdoor unit.
• 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
Service space
Select an installation site where the following con-
ditions are satisfied and that meets your cus-
tomer's approval.
• Where the floor is strong enough to bear the
indoor unit weight.
• Where the floor is not significantly inclined.
• Where nothing blocks the air passage.
• Where condensate can be properly drained.
• Where sufficient clearance for installation and
maintenance can be ensured.
• Where there is no possibility of flammable gas
leakage.
• Where optimum air distribution can be ensured.
• Where piping between indoor and outdoor units
is possible within the allowable limit (Refer to the
installation manual of the outdoor unit.)
• Keep the indoor and outdoor unit, power cable
and transmission wiring, at least 1m from TVs
and radios, to prevent distorted pictures and stat-
ic.(Depending on the type and source of the elec-
trical waves, static may be heard even when
more than 1 m away.)
654
80 or more
B or more
Maintenance area
Window
A or more
20 or
more
100 or
more 100 or more
175 or
more
150 or
more
Front side
Base
Air flow
direction
Air inlet
direction
1000 or
more
Window
(Unit: mm)
Installation Manual 7
ENGLISH
[IMPORTANT]
Leave sufficient clearance for air
inlet and maintenance.
Type A B
CEU Type 788 1080
CFU Type 1066 1358

8Indoor Unit
Installation
Bolt pitch
(Unit:mm)
198
A
270
(1)
(1)
(2)
(2)
(3)
How to open/close front panel
• Positioning of holes for fastening to the wall
• How to open/close the front panel
(1) Open the lid of control panel(Both left and right)
(2) Remove screws(Both left and right)
(3) Lift the front panel of the unit
• To close, perform the procedure in opposite
order.
1. Use the installationmount for installation. Check
whether the wall is strong enough to bear the
weight of the unit or not. if there is a risk, rein-
force the wall before installing the unit.
2. The unit requires a minimum 100 mm clearance
on the underside for air intake. Also, ensure the
unit is level when installed so that drainage
flows smoothly. If inclined, water can leak.
3. By a state of the wall, operating sound may
become bigger.
(Unit:mm)
Capacity(Btu/h) A
7/9/12/15k 858
18/24k 1136

Installation
Preparation of Piping
1. Cut the pipes and the cable.
nUse the accessory piping kit or the pipes pur-
chased locally.
nMeasure the distance between the indoor
and the outdoor unit.
nCut the pipes a little longer than measured
distance.
nCut the cable 1.5m longer than the pipe
length.
2. Burrs removal
nCompletely remove all burrs from the cut
cross section of pipe/tube.
nPut the end of the copper tube/pipe to down-
ward direction as you remove burrs in order
to avoid to let burrs drop in the tubing.
3. Flaring work
nCarry out flaring work using flaring tool as
shown below.
Firmly hold copper tube in a bar(or die) as indi-
cated dimension in the table above.
4. Check
nCompare the flared work with figure below.
nIf flare is noted to be defective, cut off the
flared section and do flaring work again.
Main cause of gas leakage is defect in flaring work. Carry out correct flaring work in the fol-
lowing procedure.
Copper
tube
90° Slanted Uneven Rough
Pipe
Reamer
Point down
Bar
Copper pipe
Clamp handle Red arrow mark
Cone
Yoke
Handle
Bar
"A"
Inclined
Inside is shining without scratches.
Smooth all round
Even length
all round
Surface
damaged Cracked Uneven thickness
= Improper flaring =
Installation Manual 9
ENGLISH
Indoor unit
[kW(Btu/h]
Pipe " A "
Gas(mm) Liquid(mm) Gas(mm) Liquid(mm)
<5.6(19,100) 12.7 6.35 0.5~0.8 0~0.5
<16.0(54,600) 15.88 9.52 0.8~1.0 0.5~0.8
<22.4(76,400) 19.05 9.52 1.0~1.3 0.5~0.8

Installation
10 Indoor Unit
1. Remove the cap and turn the valve counter clockwise with the hexagon wrench.
2. Turn it until the shaft stops.
Do not apply excessive force to the shutoff valve. Doing so may break the valve body, as
the valve is not a backseat type. Always use the special tool.
3. Make sure to tighten the cap securely.
1. Remove the cap and turn the valve clockwise with the hexagon wrench.
2. Securely tighten the valve until the shaft contacts the main body seal.
3. Make sure to tighten the cap securely.
* For the tightening torque, refer to the table on the below.
Precautions when connecting pipes
• See the following table for flare part machining dimensions.
• When connecting the flare nuts, apply refrigerant oil to the inside and outside of the flares and turn
them three or four times at first. (Use ester oil or ether oil.)
• See the following table for tightening torque.(Applying too much torque may cause the flares to crack.)
• After all the piping has been connected, use nitrogen to perform a gas leak check.
Tightening torque
Opening shutoff valve
Closing shutoff valve
FLARE SHAPE and FLARE NUT TIGHTENING TORQUE
CAUTION
• Always use a charge hose for service port connection.
• After tightening the cap, check that no refrigerant leaks are present.
• When loosening a flare nut, always use two wrenches in
combination, When connecting the piping, always use a spanner
and torque wrench in combination to tighten the flare nut.
• When connecting a flare nut, coat the flare(inner and outer faces)
with oil for R410A(PVE) and hand tighten the nut 3 to 4 turns as the
initial tightening.
Union
Pipe size Torque(kgf.m) A(mm) Flare shape
90°
± 2
45°
± 2
A
R=0.4~0.8
Shut off valve
size
Tightening torque N-m(Turn clockwise to close)
Shaft(valve body) Cap(Valve lid) Service port Flare nut Gas line piping attached to unit
Ø6.35 5.4-6.6
Hexagonal
wrench 4mm
13.5-16.5
11.5-13.9
14-17
-
Ø9.52 33-39
Ø12.7 8.1-9.9 18-22 50-60
Ø15.88 13.5-16.5
Hexagonal
wrench 6mm
23-27 62-75
Ø22.2 27-33
Hexagonal
wrench 10mm
- 22-28
Ø25.4 36-44
Ø6.35 1.8~2.5 8.7~9.1
Ø9.52 3.4~4.2 12.8-13.2
Ø12.7 5.5~6.6 16.2-16.6
Ø15.88 6.3~8.2 19.3-19.7