LG CL09R.N20, CL12R.N20, CL18R.N20, CM24R.N10, UM30R.N10 Installation Manual

P/NO : MFL67939930

INSTALLATION MANUAL

AIR
CONDITIONER

www.lg.com

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.

Ceilling Concealed Duct
Original instruction (R32)

[Representative] LG Electronics Inc. EU Representative :
LG Electronics European Shared Service Center B.V.
Krijgsman 1, 1186 DM Amstelveen, The Netherlands
[Manufacturer] LG Electronics Inc. Changwon 2nd factory 84, Wanam-ro,
Seongsan-gu, Changwon-si, Gyeongsangnam-do, KOREA

Copyright © 2017 - 2018 LG Electronics Inc. All Rights Reserved.

ENGLISH ITALIANO ESPAÑOL FRANÇAIS DEUTSCH

ΕΛΛΗΝΙΚΆ

ČEŠTINA

NEDERLANDS

POLSKI

LIMBA ROMÂNĂ

ENGLISH

2

MODEL DESIGNATION

MODEL DESIGNATION

Product information

- Product Name : Air conditioner

- Model Name :

SQSM N B 015

Serial number

Chassis name

Indoor Unit / Outdoor Units

N : Indoor Unit
U : Outdoor Unit

Detailed product type only
for M- series models

AQ : Wall mounted Libero-R
SQ : Wall mounted Libero-E
AH* : ARTCOOL
AW* : ART COOL Mirror
AH : Ceiling Cassette
AHL : Ceiling Concealed Duct
(Low Static)

Detailed product type for
U- / C- series models

L : Low Static
H : High COP
C : Econo
R : Refrigerant R32

Nominal Capacity

Ex) 7,000 Btu/h Class → '07',
18,000 Btu/h Class → '18'

Product type

S : Wall mounted /
ARTCOOL mirror
J : Wall mounted
A : ARTCOOL
T : Ceiling Cassette
B, M : Ceiling Concealed Duct
V : Ceiling Suspended & floor
Q : Console
P : Floor Standing

Connectable Outdoor unit type

M : Indoor units only for

Multi systems

U : Indoor units only for

Single A systems

C : Common Indoor Unit for

Multi and Single CAC

Airborne Noise Emission

The A-weighted sound pressure emitted by

this product is below 70 dB.

** The noise level can vary depending on the
site.

The figures quoted are emission level and are
not necessarily safe working levels.

Whilst there is a correlation between the
emission and exposure levels, this cannot be
used reliably to determine whether or not
further precautions are required.

Factor that influence the actual level of
exposure of the workforce include the
characteristics of the work room and the other
sources of noise, i.e. the number of
equipment and other adjacent processes and
the length of time for which an operator
exposed to the noise. Also, the permissible
exposure level can vary from country to
country.

This information, however, will enable the
user of the equipment to make a better
evaluation of the hazard and risk.

- Additional Information : serial number is
refer to the barcode on the product.

- Max allowable pressure High side :

4.2 MPa / Low side : 2.4 MPa

- Refrigerant : R32

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.

3

ENGLISH

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 :

ENGLISH

4

IMPORTANT SAFETY INSTRUCTIONS

IMPORTANT SAFETY INSTRUCTIONS

Read the precautions in this manual
carefully before operating the unit.

This symbol indicates that the
Operation Manual should be read
carefully.

This appliance is filled with
flammable refrigerant (R32)

This symbol indicates that a service
personnel should be handling this
equipment with reference to the
Installation Manual.

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.

• Installation MUST conform with local building codes or, in the
absence of local codes, with the Nation Electrical Code NFPA
70/ANSI C1-1003 or current edition and Canadian Electrical
Code Part1 CSA C.22.1.

• 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.

• Compliance with national gas regulations shall be observed.

• Ducts connected to an appliance shall not contain an ignition
source.

IMPORTANT SAFETY INSTRUCTIONS

5

Installation

• Always perform grounding. - Otherwise, it may cause electrical
shock.

• 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 installation of the product, always contact the service center or
a professional installation agency. - Otherwise, it may cause a fire,
electrical shock, explosion or injury.

• Securely attach the electrical part cover to the indoor unit and the
service panel to the outdoor unit.

- If the electrical part cover of the indoor unit and the service panel

of the outdoor unit are not attached securely, it could result in a
fire or electric shock due to dust, water, etc.

• Always install an air leakage breaker and a dedicated switching
board. - No installation may cause a fire and electrical shock.

ENGLISH

• Do not keep or use flammable gases or combustibles near the air
conditioner. - Otherwise, it may cause a fire or the failure of
product.

• Ensure that an installation frame of the outdoor unit is not
damaged due to use for a long time.

- It may cause injury or an accident.

• Do not disassemble or repair the product randomly. - It will cause a
fire or electrical shock.

• Do not install the product at a place that there is concern of falling
down. - Otherwise, it may result in personal injury.

• Use caution when unpacking and installing. - Sharp edges may
cause injury.

• The appliance shall be stored in a room without continuously
operating ignition sources
(for example: open flames, an operating gas appliance or an
operating electric heater.)

• Two or more people must lift and transport the product. Avoid
personal injury.

• Do not use means to accelerate the defrosting process or to clean,
other than those recommended by the manufacturer.

• Do not pierce or burn refrigerant cycle part.

• Be aware that refrigerants may not contain an odour.

ENGLISH

6

• Keep any required ventilation openings clear of obstruction.

• The appliance shall be stored in a well-ventilated area where the
room size corresponds to the room area as specified for operation.

• Refrigerant tubing shall be protected or enclosed to avoid damage.

• Flexible refrigerant connectors (such as connecting lines between
the indoor and outdoor unit) that may be displaced during normal
operations shall be protected against mechanical damage.

• A brazed, welded, or mechanical connection shall be made before
opening the valves to permit refrigerant to flow between the
refrigerating system parts.

• Mechanical connections shall be accessible for maintenance
purposes.

• The appliance shall be disconnected from its power source during
service and when replacing parts.

IMPORTANT SAFETY INSTRUCTIONS

Operation

• Do not share the outlet with other appliances. - It will cause an
electric shock or a fire due to heat generation.

• Do not use the damaged power cord. - Otherwise, it may cause a
fire or electrical shock.

• Do not modify or extend the power cord randomly.

- Otherwise, it may cause a fire or electrical shock.

• Take care so that the power cord may not be pulled during
operation. - Otherwise, it may cause a fire or electrical shock.

• Unplug the unit if strange sounds, smell, or smoke comes from it. ­Otherwise, it may cause electrical shock or a fire.

• Keep the flames away. - Otherwise, it may cause a fire.

• Take the power plug out if necessary, holding the head of the plug
and do not touch it with wet hands. - Otherwise, it may cause a
fire or electrical shock.

• Do not use the power cord near the heating tools. - Otherwise, it
may cause a fire and electrical shock.

• Do not open the suction inlet of the indoor/outdoor unit during
operation. - Otherwise, it may electrical shock and failure.

• Do not allow water to run into electrical parts. - Otherwise, it may
cause the failure of machine or electrical shock.

• Hold the plug by the head when taking it out. - It may cause

IMPORTANT SAFETY INSTRUCTIONS

7

electric shock and damage.

• Never touch the metal parts of the unit when removing the filter. ­They are sharp and may cause injury.

• Do not step on the indoor/outdoor unit and do not put anything on
it. - It may cause an injury through dropping of the unit or falling
down.

• Do not place a heavy object on the power cord. - Otherwise, it may
cause a fire or electrical shock.

• When the product is submerged into water, always contact the
service center. - Otherwise, it may cause a fire or electrical shock.

• Take care so that children may not step on the outdoor unit.

- Otherwise, children may be seriously injured due to falling down.

• 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.

ENGLISH

• Do not turn on the breaker or power under condition that front
panel, cabinet, top cover, control box cover are removed or
opened. - Otherwise, it may cause fire, electric shock, explosion or
death.

• Turn off all devices that cause fire when the refrigerant leaks.,
ventilate the room (example : opening window or using ventilation
unit), and contact with dealer who you purchased the unit.

• The installation of pipe-work shall be kept to a minimum.

• When mechanical connectors are reused indoors, sealing parts
shall be renewed.

• When flared joints are reused indoors, the flare part shall be re­fabricated.

CAUTION

!

Installation

• Install the drain hose to ensure that drain can be securely done. ­Otherwise, it may cause water leakage.

• Install the product so that the noise or hot wind from the outdoor
unit may not cause any damage to the neighbors.

- Otherwise, it may cause dispute with the neighbors.

• Always inspect gas leakage after the installation and repair of

ENGLISH

8

product. - Otherwise, it may cause the failure of product.

• Keep level parallel in installing the product. - Otherwise, it may
cause vibration or water leakage.

• Any person who is involved with working on or breaking into a
refrigerant circuit should hold a current valid certificate from an
industry-accredited assessment authority, which authorises their
competence to handle refrigerants safely in accordance with an
industry recognised assessment specification.

• Wear adequate personal protection equipment (PPE) when
installing, maintaining or servicing the product.

Operation

• Avoid excessive cooling and perform ventilation sometimes.

- Otherwise, it may do harm to your health.

IMPORTANT SAFETY INSTRUCTIONS

• Use a soft cloth to clean. Do not use wax, thinner, or a strong
detergent. - The appearance of the air conditioner may deteriorate,
change color, or develop surface flaws.

• Do not use an appliance for special purposes such as preserving
animals vegetables, precision machine, or art articles. - Otherwise,
it may damage your properties.

• Do not place obstacles around the flow inlet or outlet.

- Otherwise, it may cause the failure of appliance or an accident.

• The appliance shall be stored so as to prevent mechanical damage
from occurring.

• Servicing shall only be performed as recommended by the
equipment manufacturer. Maintenance and repair requiring the
assistance of other skilled personnel shall be carried out under the
supervision of the person competent in the use of flammable
refrigerants.

• Dismantling the unit, treatment of the refrigerant oil and eventual
parts should be done in accordance with local and national
standards.

• Periodic ( more than once/year ) cleaning of the dust or salt
particles stuck on the heat exchanger by using water.

• Means for disconnection must be incorporated in the fixed wiring
in accordance with the wiring rules.

TABLE OF CONTENTS

2 MODEL DESIGNATION

3 TIPS FOR SAVING ENERGY

4 IMPORTANT SAFETY INSTRUCTIONS

10 INSTALLATION PLACES

12 THE INDOOR UNIT INSTALLATION

12 Position of suspension Bolt
15 Wiring Connection
17 Flaring Work

TABLE OF CONTENTS

9

ENGLISH

20 REMOTE CONTROLLER INSTALLATION

22 Wired remote controller installation

23 OPTIONAL OPERATION

23 Installer Setting -Test Run Mode
24 Installer Setting - Setting Address of Central Control
25 Installer Setting -Thermistor
26 Installer Setting -Ceiling Height Selection
27 Installer Setting-Group Setting
28 Installer Setting-Dry Contact Mode Setting
29 Installer Setting-Celsius / Fahrenheit Switching
30 Installer Setting -Optional Function Setting
31 Installer Setting - Remote controller Mode Lock

32 HOW TO SET E.S.P?

32 Installer Setting -E.S.P.
34 Installer Setting - Static Pressure Step Setting

39 SELF-DIAGNOSIS FUNCTION

40 DIP SWITCH SETTING

ENGLISH

10

INSTALLATION PLACES

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.

- 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.

(Suitable dimension “H” is necessary to get a slope to drain as figure.)

- 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.

INSTALLATION PLACES

Ceiling Concealed Duct – Low Static Ceiling Concealed Duct – Mid Static

Top view

(unit: mm)

Inspection hole (600 x 600)

Control box

600

Air outlet

600

Top view

(unit: mm)

600

Inspection hole

(600 x 600)

Control box

1000

Front

Side view

(unit: mm)

• Suitable dimension "H" is necessary to get a slope

to drain as shown in the figure

CAUTION

!

Air outlet

H=20 or more

Front view

H

• In case that the unit is installed near the sea, the installation parts may be corroded by salt,
The installation parts (and the unit) should be taken appropriate anti-corrosion measures.

600

[Inspection Hole Standard]

Number of

Inspection hole

1 More than 100cm Sufficient space in the ceiling for servicing.

2 20cm to 100cm Insufficient space. Difficult for servicing

Hole size should be

more than the size

of IDU.

False ceiling & Actual ceiling

Distance between

Remarks

Less than 20cm Minimum height for motor replacement.

INSTALLATION PLACES

11

Minimum floor area

- The appliance shall be installed, operated and stored in a room with a floor area larger than the mini­mum area.

- Use the graph of table to determine the minimum area.

ENGLISH

Amin (m2)

600

500

400

300

200

100

0

0 1.224 2 3 4 5 6 7 8

- m : Total refrigerant amount in the system

- Total refrigerant amount : factory refrigerant charge + additional refrigerant amount

- Amin : minimum area for installation

Floor standing

Wall mounted

Ceiling mounted

m (kg)

Floor location

m (kg) Amin (m

< 1.224

1.224 12.9

1.4 16.82

1.6 21.97

1.8 27.80
2 34.32

2.2 41.53

2.4 49.42

2.6 58.00

2.8 67.27
3 77.22

3.2 87.86

3.4 99.19

3.6 111.20

3.8 123.90
4 137.29

4.2 151.36

4.4 166.12

-

Floor location

2

m (kg) Amin (m

)

4.6 181.56

4.8 197.70
5 214.51

5.2 232.02

5.4 250.21

5.6 269.09

5.8 288.65
6 308.90

6.2 329.84

6.4 351.46

6.6 373.77

6.8 396.76
7 420.45

7.2 444.81

7.4 469.87

7.6 495.61

7.8 522.04

2

)

Wall mounted

m (kg) Amin (m

< 1.224

1.224 1.43

1.4 1.87

1.6 2.44

1.8 3.09
2 3.81

2.2 4.61

2.4 5.49

2.6 6.44

2.8 7.47
3 8.58

3.2 9.76

3.4 11.02

3.6 12.36

3.8 13.77
4 15.25

4.2 16.82

4.4 18.46

-

Wall mounted

2

m (kg) Amin (m

)

4.6 20.17

4.8 21.97
5 23.83

5.2 25.78

5.4 27.80

5.6 29.90

5.8 32.07
6 34.32

6.2 36.65

6.4 39.05

6.6 41.53

6.8 44.08
7 46.72

7.2 49.42

7.4 52.21

7.6 55.07

7.8 58.00

2

)

Ceiling Mounted

m (kg) Amin (m

< 1.224

1.224 0.956

1.4 1.25

1.6 1.63

1.8 2.07
2 2.55

2.2 3.09

2.4 3.68

2.6 4.31

2.8 5.00
3 5.74

3.2 6.54

3.4 7.38

3.6 8.27

3.8 9.22
4 10.21

4.2 11.26

4.4 12.36

-

Ceiling Mounted

2

m (kg) Amin (m

)

4.6 13.50

4.8 14.70
5 15.96

5.2 17.26

5.4 18.61

5.6 20.01

5.8 21.47
6 22.98

6.2 24.53

6.4 26.14

6.6 27.80

6.8 29.51
7 31.27

7.2 33.09

7.4 34.95

7.6 36.86

7.8 38.83

2

)

ENGLISH

C

E

G

D

F

I

A

J

B

H

Drainage hole

C

E

G

D

A

J

B

Drainage hole

F

I

H

Inspection Port

Indoor Unit

Ceiling

Canvas Duct

Air Intake Port

Ceiling Board

Ceiling Board

Air Discharge Port

Discharge
Flexible Duct

Intake
Duct

Inspection Port

Indoor Unit

Ceiling

Canvas Duct

Air Intake Port

Ceiling Board

Ceiling Board

Air Discharge Port

Discharge
Flexible Duct

Intake
Duct

12

THE INDOOR UNIT INSTALLATION

THE INDOOR UNIT INSTALLATION

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.

Ceiling Concealed Duct – Low Static

Ceiling Concealed Duct – Mid Static

(Unit: mm)

Dim

ension

Capacity
(kBtu/h

9

12/18

24

A B C D E F G H I J

)

733 772 628 700 36 190 20 660 155 700

933 972 628 700 36 190 20 860 155 900

1133 1172 628 700 36 190 20 1060 155 1100

(Unit: mm)

Dimension

Capacity
(kBtu/h)

18 / 24 / 30

36 / 42

48 / 60

933.4 971.6 619.2

1283.4 1321.6 619.2

1283.4 1321.6 619.2

A B C D E F G H I J

700 30 270 15.2

689.6

30 270 15.2

689.6

30 360 15.2

858 201.4

1208 201.4

1208 291.4

1250

1250

900

THE INDOOR UNIT INSTALLATION

13

ENGLISH

- 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 wall.

CAUTION

!

• This air-conditioner uses a drain pump.

• Install the unit horizontally using a level
gauge.

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

NOTE

!

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 generat-

ed.

5 Avoid places near high frequency genera-

tors.

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.

M10 Nut
M10 SP. washer
M10 washer

M10 washer
M10 SP. washer
M10 Nut

- Select and mark the position for fixing bolts.

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

X 4
X 4
X 4

X 4
X 4
X 4

(Local
supply)

(Local
supply)

ENGLISH

1 Set anchor

Old building New building

2 Plate washer
3 Spring washer

4 Nut
5 Suspension

bolts

Drainage hole

CORRECT

5~10mm

Ceiling

Drain Pump use

Ceiling Concealed Duct – Low static

Drainage hole

Drainage hole

INCORRECT

Ceiling Concealed Duct – Mid static

14

THE INDOOR UNIT INSTALLATION

- 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

CAUTION

!

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

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

Front of view

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

- The unit must be declined to the drain hose
connected when finished installation.

CAUTION

!

• Tighten the nut and bolt top revent unit
falling.

700 or less

1 -1.5m

Clamp metal(attached) Drain hose(attached)

Drain raising pipe

300mm or less300mm or less300mm or less

Heat insulation material: Polyethylene

Control box

Control box cover
(On which the Electric
Wiring Connection is put)

1

1

Control terminal board

Remote controler cord

Connection cord between the indoor
unit and the outdoor unit

Ceiling Concealed Duct – Low Static, Mid Static

foam with thickness more than 8 mm.

Drain test
The air conditioner uses a drain pump to drain

water.
Use the following procedure to test the drain
pump operation:

- Connect the main drain pipe to the exterior
and leave it provisionally until the test comes
to an end.

- Feed water to the flexible drain hose and
check the piping for leakage.

- Be sure to check the drain pump for normal
operating and noise when electrical wiring is
complete.

- When the test is complete, connect the flexi­ble drain hose to the drain port on the indoor
unit.

Feed water

Flexible drain hose
(accessory)

Main drain pipe

Drain Pump

Drain
port

Glue the joint

Drain hose connection
Use the clip (accessory)

Drain pan

THE INDOOR UNIT INSTALLATION

HEAT INSULATION

- Use the heat insulation material for the
refrigerant piping which has an excellent
heat-resistance (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
(accessory)

Indoor
unit

Refrigerant
piping

Thermal insulator
(accessory)

- Heat insulation material to be prepared...
Adiabatic EPDM or NBR with thickness 10 to
20mm.

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

Wiring Connection

- Open the control box cover and connect the
Remote controller cord and Indoor power
wires.

- Remove the control box cover for electrical
connection between the indoor and outdoor
unit. (Remove screws ¿)

- Use the cord clamper to fix the cord.

15

ENGLISH

CAUTION

!

The supplied flexible drain hose should not
be curved, neither screwed. The curved or
screwed hose may cause a leakage of
water.

Max 300mm

Metal
clamp

Insulation

Flexible drain hose

Hanger

distance

1~15m

Hanger Bracket

1/50~1/100 slope

Max 700mm

ENGLISH

Power wirer

Round pressure terminal

Connect same thickness

wiring to both sides.

It is forbidden to

connect two to one

side.

It is forbidden to

connect wiring of

different thicknesses.

16

THE INDOOR UNIT INSTALLATION

CAUTION

!

The connecting cable connected to the
indoor and outdoor unit should be com­plied with the following specifications
(This equipment shall be provided with a
cord set complying with the national regu­lation).

10±3mm

35±5mm

GN/YL

20mm

NORMAL
CROSS-SECTIONAL
AREA 0.75mm

2

Precautions when laying power
wiring

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

When none are available, follow the instruc­tions below.

- 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.

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

The Power cord connected to the unit
should be selected according to the fol­lowing specifications.

CAUTION

!

- 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 terinal screws. A screwdriver with a
small head will strip the head and make prop­er tighterning impossible.

- Over-tightening the terminal screws may
break them.

THE INDOOR UNIT INSTALLATION

Pipe

Reamer

Point down

Flare nut

Copper tube

17

ENGLISH

Flaring Work

Main cause for gas leakage is due to defect of
flaring work. Carry out correct flaring work in
the following procedure.

Cut the pipes and the cable

1 Use the piping kit accessory or the pipes

purchased locally.

2 Measure the distance between the indoor

and the outdoor unit.

3 Cut the pipes a little longer than measured

distance.

4 Cut the cable 1.5m longer than the pipe

length.

Copper

pipe

90°

Slanted Uneven Rough

Putting nut on

- Remove flare nuts attached to indoor and
outdoor unit, then put them on pipe/tube
having completed burr removal. (not possible
to put them on after finishing flare work)

Flaring work

1

Firmly hold copper pipe in a bar with the di­mension shown in below table table below.

2 Carry out flaring work with the flaring tool.

Pipe diameter

Inch (mm)

Wing nut type Clutch type

A inch (mm)

Burrs removal

1. Completely remove all burrs from the cut
cross section of pipe/tube.

2. While removing burrs put the end of the
copper tube/pipe in a downward direction
while removing burrs location is also
changed in order to avoid dropping burrs
into the tubing.

CAUTION

!

Copper in contact with refrigerants shall
be oxygen-free or de-oxidized, for exam­ple Cu-DHP as specified in EN 12735-1
and EN 12735-2

Ø1/4 (Ø6.35)

Ø3/8 (Ø9.52)

Ø1/2 (Ø12.7)

Ø5/8 (Ø15.88)

Bar

Copper pipe

CAUTION

!

• The installation of pipe-work shall be
kept to a minimum

• Flared joint shall be restricted to use
with annealed pipe only, and to pipe
sizes not exceeding a diameter of 20
mm outside diameter.

0.04~0.07
(1.1~1.8)

"A"

0~0.02
(0~0.5)

<Wing nut type>

<Clutch type>

ENGLISH

18

THE INDOOR UNIT INSTALLATION

Check

1 Compare the flared work with the figure

by.

2 If a flared section is defective, cut it off

and do flaring work again.

Smooth all round

Inside is shiny without scratches

= Improper flaring =

Even length

all round

Inclined

Surface

damaged

Cracked Uneven

thickness

Connecting the installation pipe
and drain hose to the indoor unit.

1 Align the center of the pipes and suffi-

ciently tighten the flare nut by hand

CAUTION

!

• When mechanical connectors are
reused indoors, sealing parts shall be
renewed.

• When flared joints are reused indoors,
the flare part shall be re-fabricated.

3 When needed to extend the drain hose of

indoor unit, assembly the drain pipe as
shown on the drawing

Drain pipe

Indoor unit drain hose

Adhesive

Vinyl tape(narrow)

Wrap the insulation material

around the connecting portion.

Indoor unit tubing Flare nut Pipes

2 Tighten the flare nut with a wrench

Outside diameter

mm inch kgf.m
Ø6.35 1/4 1.8~2.5
Ø9.52 3/8 3.4~4.2
Ø12.7 1/2 5.5~6.5

Ø15.88 5/8 6.3~8.2
Ø19.05 3/4 9.9~12.1

Open-end wrench
(fixed)

Flare nut

Wrench

Indoor unit tubing

Torque

Connection
pipe

1 Overlap the connection pipe insulation ma-

terial and the indoor unit pipe insulation
material. Bind them together with vinyl
tape so that there may be no gap.

Insulation material

2 Set the tubing cutting line upward.

Gas Pipe

Liquid Pipe

Cutting Line

Cutting Line

Good Case Bad Case

* Tubing cutting line have to be upward.

Vinyl tape(narrow)

Connection pipe

Connecting cable

Vinyl tape (wide)

Wrap with vinyl tape

Indoor unit pipe

Pipe

Wrap the area which accommodates the
rear piping housing section with vinyl tape.

THE INDOOR UNIT INSTALLATION

19

ENGLISH

3 Bundle the piping and drain hose together

by wrapping them with vinyl tape sufficient
enough to cover where they fit into the
rear piping housing section.

Wrap with vinyl tape

Pipe

Vinyl tape(wide)

Drain hose

ENGLISH

1

2

3

2

3

<Wire guide grooves>

20

REMOTE CONTROLLER INSTALLATION

Please fix tightly using provided screw after placing remote controller setup
board on the place where you like to setup.

- Please set it up not to bend because poor setup could take place if setup board bends.

- Install the product so as not to make a gap with the wall side and to prevent shaking after the

REMOTE CONTROLLER INSTALLATION

Please set up remote controller board fit to the reclamation box if there is a reclamation box.

installation.

Can set up Wired remote controller cable into three directions.

- Setup direction: the surface of wall reclamation, upper, right

- If setting up remote controller cable into upper and right side, please set up after removing
remote controller cable guide groove.

* Remove guide groove with long nose.

① Reclamation to the surface of the wall
② Upper part guide groove
③ Right part guide groove

REMOTE CONTROLLER INSTALLATION

Wall
Side

Wall
Side

Wall
Side

Wall

Side

<Connecting order>

<Separating order>

Please check if connector is normally connected.

Connecting cable

Indoor
Unit side

Please fix remote controller upper part
into the setup board attached to the sur­face of the wall, as the picture below, and
then, connect with setup board by press­ing lower part.

- Please connect not to make a gap at the remote
controller and setup board’s upper and lower, right
and left part.

- Before assembly with the installation board, arrange
the Cable not to interfere with circuit parts.

When separating remote controller from
setup board, as the picture below, after
inserting into the lower separating hole
using screw driver and then, spinning
clockwise, remote controller is separated.

21

ENGLISH

- There are two separating holes. Please individually
separate one at a time.

- Please be careful not to damage the inside
components when separating.

Please connect indoor unit and remote controller using connection cable.

Please use extension cable if the distance between wired remote controller
and indoor unit is more than 10m.

CAUTION

!

When installing the wired remote controller, do not bury it in the wall. (It can cause damage in
the temperature sensor.)

Do not install the cable to be 50m or above. (It can cause communication error.)

• When installing the extension cable, check the connecting direction of the connector of the
remote controller side and the product side for correct installation.

• If you install the extension cable in the opposite direction, the connector will not be con­nected.

• Specification of extension cable: 2547 1007 22# 2 core 3 shield 5 or above.

ENGLISH

22

Wired remote controller installation

Since the room temperature sensor is in the remote controller, the remote controller box should
be installed in a place away from direct sunlight, high humidity and direct supply of cold air to
maintain proper space temperature. Install the remote controller about 5ft(1.5m) above the floor
in an area with good air circulation at an average temperature.

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

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

- Hot or cold air from ducts.

- Radiant heat from sun or appliances.

- Concealed pipes and chimneys.

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

- This remote controller is equipped with a seven segment LED. display. For proper display of the
remote controller LED's, the remote controller should be installed properly as shown in Fig.1.
(The standard height is 1.2~1.5 m from floor level.)

REMOTE CONTROLLER INSTALLATION

Direct

Sun ray contact area

no

yes

no

no

5feet

(1.5meters)

OPTIONAL OPERATION

Installer Setting -Test Run Mode

After installing the product, you must run a Test Run mode.
For details related to this operation, refer to the product manual.

If pressing button long for 3 seconds, it

1

enters into remote controller setter setup
mode.

- If pressing once shortly, it enters into user
setup mode. Please press more than 3
seconds for sure.

- Please cancel the right and left of wind
direction for RAC product.

OPTIONAL OPERATION

23

ENGLISH

Function Code Set

Setup figure '01' blinks at the lower part of

2

indication window.

Press button to start.

3

During the test run, pressing the below

4

button will exit the test run.

- Select operation, temperature up/down,
wind flow control, wind direction,
start/stop button.

ENGLISH

24

Installer Setting - Setting Address of Central Control

It's the function to use for connecting central control.
Please refer to central controller manual for the details

OPTIONAL OPERATION

If pressing button long for 3

1

seconds, it enters into remote controller
setter setup mode.

- If pressing once shortly, it enters into
user setup mode. Please press more
than 3 seconds for sure.

If entering into address setup mode by using

2

button, it indicates as picture below.

Group No

Function Code

Indoor No.

Set Group No. by pressing

3

button.(0~F)

Move to Indoor No. setting option

4

by pressing button.

Set Indoor No. by pressing

5

button.

Press button to save.

6

Pressing button will exit settings mode.

7

❈ After setup, it automatically gets out of setup

mode if there is no button input for 25
seconds.

❈ When exiting without pressing set button, the

manipulated value is not reflected.

Installer Setting -Thermistor

OPTIONAL OPERATION

If pressing button long for 3

1

seconds, it enters into remote controller
setter setup mode.

- If pressing once shortly, it enters into
user setup mode. Please press more
than 3 seconds for sure.

If moving to room temperature perception sensor

2

selection menu by pressing button, it
indicates as picture below.

25

ENGLISH

Set Thermistor value by pressing

3

button. (01: Remote Controller,
02: Indoor, 03: 2TH)

Function Code Thermistor setting

Press button to save.

4

Pressing button will exit settings mode.
❈ After setup, it automatically gets out of setup

5

mode if there is no button input for 25
seconds.

❈ When exiting without pressing set button, the

manipulated value is not reflected.

<Thermistor Table>

Temperature sensor selection Function
01 Remote controller Operation in remote controller temperature sensor
02 Indoor unit Operation in indoor unit temperature sensor

Cooling

03 2TH

Heating

* The function of 2TH has different operation characteristics according to the product.

Operation of higher temperature by comparing indoor unit's and wired
remote controller’s temperature.
(There are products that operate at a lower temperature.)

Operation of lower temperature by comparing indoor unit's and wired
remote controller's temperature.

ENGLISH

26

Installer Setting -Ceiling Height Selection

This function is to adjust FAN Airflow rate according to ceilingheight (only cassette model)

OPTIONAL OPERATION

If pressing button long for 3

1

seconds, it enters into remote controller
setter setup mode.

- If pressing once shortly, it enters into
user setup mode. Please press more
than 3 seconds for sure.

If moving to ceiling height selection menu by

2

pressing button, it indicates as picture below.

Select ceiling height value by pressing

3

button. (01:Low, 02:Standard,
03:High, 04Very high)

Function Code Thermistor setting

Press button to save.

4

Pressing button will exit settings mode.
❈ After setup, it automatically gets out of setup

5

mode if there is no button input for 25
seconds.

❈ When exiting without pressing set button, the

manipulated value is not reflected.

<Ceiling Height Selection Table>

Ceiling Height Level Description

01 Low Decrease the indoor airflow rate 1 step from standard level
02 Standard Set the indoor airflow rate as standard level
03 High Increase indoor airflow rate 1 step from standard level
04 Super high Increase indoor airflow rate 2 steps from standard level

* Ceiling height setting is available only for some products.
* Ceiling height of ‘Super high’ function may not exist depending on the indoor unit.
* Refer to the product manual for more details.

OPTIONAL OPERATION

Installer Setting-Group Setting

It is a function for settings in group control, or 2-remote controller control.

If pressing button long for 3 seconds, it

1

enters into remote controller setter setup
mode.

- If pressing once shortly, it enters into
user setup mode. Please press more than
3 seconds for sure.

If pressing button repeatedly, it moves to

2

master/slave selection menu as picture below.

27

ENGLISH

Select Master/ Slave by pressing

3

button.
(00: Slave, 01: Master)

Function Code Master/Slave value

Press button to save.

4

Pressing button will exit settings mode.

5

❈ After setup, it automatically gets out of setup mode

if there is no button input for 25 seconds.

❈ When exiting without pressing set button, the

manipulated value is not reflected.

Remote controller Function

Master

Indoor unit operates based on master remote controller at group control.
(Master is set when delivering from the warehouse.)

Slave

* Refer to the 'group control' part for details

- When controlling in groups, basic operation settings, airflow strength weak/medium/strong,
lock setting of the remote controller, time settings, and other functions may be restricted.

Setup all remote controllers except one master remote controller to slave
at group control

ENGLISH

28

Installer Setting-Dry Contact Mode Setting

Dry contact function is the function that is possible to use only when dry contact equipment is
separately purchased/setup.

OPTIONAL OPERATION

If pressing button long for 3

1

seconds, it enters into remote controller
setter setup mode.

- If pressing once shortly, it enters into
user setup mode. Please press more
than 3 seconds for sure.

If pressing button repeatedly, it moves to

2

remote controller dry contact mode setup menu
as picture below.

Select Dry contact setting by

3

pressing button.
(00 : Automatic, 01 : manual)

Function Code Dry Contact

setting value

Press button to save.

4

Pressing button will exit settings mode.

5

❈ After setup, it automatically gets out of setup

mode if there is no button input for 25
seconds.

❈ When exiting without pressing set button, the

manipulated value is not reflected.

What is Dry Contact?

Like hotel card key and body perception sensor, it is the signal of the point of contact when using
air-conditioner by interlocking.

- Please refer to dry contact manual for more details.

OPTIONAL OPERATION

Function Code conversion mode value

If pressing button long for 3
seconds, it enters into remote
controller setter setup mode.

- If pressing once shortly, it enters
into user setup mode.
Please press more than 3 seconds for
sure.

1

Press button to exit or system
will automatically exit after 25
seconds without any input.

5

Repeat pressing button to select
Function code 12.

Ex) Fahrengeit Setting

2

Select Temperature unit mode by pressing
button.

(00: Celsius, 01: Fahrenheit)

3

Press button to save or release.

4

Installer Setting-Celsius / Fahrenheit Switching

This function is used for switching the display between Celsius and Fahrenheit.
(Optimized only for U.S.A)

29

ENGLISH

h Whenever press button in Fahrenheit mode, the temperature will increase/drop 2

degrees.

ENGLISH

30

Installer Setting -Optional Function Setting

Setting feature for indoor unit when air cleaning / heater / humidifier / Up/down grill / Ventilation
KIT / Auxiliary Heater is newly installed, or installed unit is removed.

OPTIONAL OPERATION

If pressing button long for 3

1

seconds, it enters into remote controller
setter setup mode.

- If pressing once shortly, it enters into
user setup mode. Please press more
than 3 seconds for sure.

If pressing button repeatedly, it moves to the

2

selected option function code as picture below.

Select existing condition of

3

each mode by pressing
button.

(00: not installed,
01 : installed)

Function Code Existing condition

Press button to save.

4

Function

Plasma purification

Electric heater

Dehumidifier
Elevation grill

Ventilation kit

Auxiliary heater

Code

20
21
22
23
24
25

Pressing button will exit settings mode.

5

❈ After setup, it automatically gets out of setup

mode if there is no button input for 25
seconds.

❈ When exiting without pressing set button, the

manipulated value is not reflected.

OPTIONAL OPERATION

Installer Setting - Remote controller Mode Lock

This function is used to limit ‘operation-mode’ selection setting.

Press and hold button for

1

more than 3 seconds to enter the
installer settings mode.

Move to the installer code number 42 in the

2

menu using button.

31

ENGLISH

Select the remote control master/slave

3

using button.

Code value for mode

lock setting

code Description
42:00
42:01
42:02

Press button to save the setting.

Doesn’t limit operation mode setting.
User can setting to cooling mode only.
User can setting to heating mode only.

Set value

4

h It can limit only wired remote controller button. other controllers can change operation mode.

(for example wireless remote controller and central controller)

Press button to exit.

5

ENGLISH

32

HOW TO SET E.S.P?

Installer Setting -E.S.P.

This is the function that decides the strength of the wind for each wind level and because this
function is to make the installation easier.

- If you set ESP incorrectly, the air conditioner may malfunction.

- This setting must be carried out by a certificated-technician.

HOW TO SET E.S.P?

If pressing button long for 3

1

seconds, it enters into remote controller
setter setup mode.

- If pressing once shortly, it enters into
user setup mode. Please press more
than 3 seconds for sure.

If entering into ESP setup mode by using

2

button, it indicates as the picture below.

Function code,
ESP code

ESP value

ESP step

Function Code ESP value

Select ESP fan step by pressing

3

button. (01: very low, 02: low, 03:
medium, 04: high, 05: power)

Move to ESP value setting by pressing

4

button.
(It is 000 when delivering
from the warehouse.)

Press button to setup ESP value.

5

(It is possible to setup ESP
value from 1 to 255, and 1 is the
smallest and 255 is the biggest.)

- When setting ESP value on the product without very weak wind or power wind function, it may
not work.

HOW TO SET E.S.P?

Function code,
ESP code

ESP value

Press button to save.

7

Select ESP fan step again by using
button and setup ESP value, as No. 4 and 5,
that corresponds each wind flow

6

Press button to exit.
❈ After setup, it automatically gets out of

setup mode if there is no button input for
25 seconds.

❈ When exiting without pressing set button,

the manipulated value is not reflected.

8

33

ENGLISH

- Please be careful not to change the ESP value for each fan step.

- It does not work to setup ESP value for very low/power step for some products.

- ESP value is available for specific range belongs to the product.

ENGLISH

34

Installer Setting - Static Pressure Step Setting

This function is applied to only duct type. Setting this in other cases will cause malfunction.
This function is only available on some products.
This is the function that static pressure of the product is divided in 11 steps for setting.

HOW TO SET E.S.P?

When pressing the button and

1

button simultaneously for more than 3
seconds, the system will be entered into the
installer setting mode.

- After entering into the installer setting
mode, select the static pressure step
setting code value by pressing the
button.

* Static pressure step setting code value : 32

Select the desired setting value with the

2

temperature up(

ƞ

), down(Ơ) button.

Function Code

00: use static pressure (code 06) set value
01~ 11: static pressure step (code 32) set value

When pressing button, currently

3

established static pressure value will be set
up.

When pressing the button and

4

button simultaneously for more than 3
seconds after the setting has been
completed, the setting mode will be released.

- If there isn’t any button input for more than
25 seconds, the installer setting mode will
also be released.

- Static Pressure (Code 06) setting will not be used if Static Pressure Step (Code 32) setting is
being used.

- For the static pressure value for each step, refer to the next page Table. 1

Existing condition

Ceiling Concealed Duct – Low static

Table 1

Model Step CMM

LOW 5.5 69 76 83 91 101 111

CL09R.N20

Model Step CMM

CL12R.N20

MID 7 81 87 94 101 109 117

HIGH 9 97 103 108 117 124 131

LOW 7 78 82 87 93 100 107

MID 8.5 87 91 94 100 108 116

HIGH 10 96 100 103 109 117 125

0(0) 1(10) 2(20) 3(29) 4(39) 5(49)

32:01 32:02 32:03 32:04 32:05 32:06

0(0) 1(10) 2(20) 3(29) 4(39) 5(49)

32:01 32:02 32:03 32:04 32:05 32:06

HOW TO SET E.S.P?

Static Pressure [mmAq (Pa)]

Setting Value

Static Pressure [mmAq (Pa)]

Setting Value

35

ENGLISH

Static Pressure [mmAq (Pa)]

Model Step CMM

LOW 10 96 100 103 109 117 125

CL18R.N20

Model Step CMM

CL24R.N30

NOTE

!

1. The above table shows the correlation between the air rates and E.S.P.

2. Be sure to set the value refering table 1. Unexpected set value will cause mal-function.

3. Table 1 is based at 230V. According to the fluctuation of voltage, air flow rate varies.

MID 12.5 109 113 117 123 130 137

HIGH 15 120 124 129 134 141 147

LOW 12 89 95 102 106 120 130

MID 16 102 108 115 125 131 139

HIGH 20 125 131 136 141 144 147

0(0) 1(10) 2(20) 3(29) 4(39) 5(49)

Setting Value

32:01 32:02 32:03 32:04 32:05 32:06

Static Pressure [mmAq (Pa)]

0(0) 1(10) 2(20) 3(29) 4(39) 5(49)

Setting Value

32:01 32:02 32:03 32:04 32:05 32:06

ENGLISH

36

Ceiling Concealed Duct – Mid static

Table 2

HOW TO SET E.S.P?

Model Step CMM

LOW 13 73 74 77 88 93 103 111 117 120 125 128

CM18R.N10

CM24R.N10

Model Step CMM

UM30R.N10

MID 14.5 76 77 85 91 97 107 114 121 125 128 131

HIGH 16.5 85 87 90 94 103 110 118 125 128 131 134

LOW 14.5 76 77 85 89 97 106 114 121 124 127 132

MID 16.5 85 87 90 94 103 111 118 125 128 131 136

HIGH 18 90 92 95 99 108 115 122 129 132 135 138

LOW 18 96 102 107 110 114 118 122 125 127 130 132

MID 20 102 110 114 118 121 125 127 130 133 134 136

HIGH 22 110 117 121 124 127 130 133 136 137 138 140

Static Pressure[mmAq(Pa)]

2(20) 2.5(25) 3(29) 4(39) 6(59) 8(78) 10(98) 12(118) 13(127) 14(137) 15(147)

Setting Value

32:01 32:02 32:03 32:04 32:05 32:06 32:07 32:08 32:09 32:10 32:11

Static Pressure[mmAq(Pa)]

2.5(25) 4(39) 5(49) 6(59) 7(69) 8(78) 9(88) 10(98) 11(108) 13(127) 15(147)

Setting Value

32:01 32:02 32:03 32:04 32:05 32:06 32:07 32:08 32:09 32:10 32:11

Model Step CMM

LOW 24 88 91 95 100 101 108 113 115 118 121 128

UM36R.N20

MID 28 93 97 101 105 108 115 118 120 124 127 134

HIGH 32 101 105 109 112 115 119 123 126 128 133 137

Static Pressure[mmAq(Pa)]

4(39) 5(49) 6(59) 7(69) 8(78) 9(88) 10(98) 11(108) 12(118) 13(127) 15(147)

Setting Value

32:01 32:02 32:03 32:04 32:05 32:06 32:07 32:08 32:09 32:10 32:11

Model Step CMM

LOW 28 100 103 106 110 114 118 121 125 128 133 136

UM42R.N20

Model Step CMM

UM48R.N30

MID 33 108 111 114 118 122 125 128 131 134 138 141

HIGH 38 117 120 124 127 130 133 135 138 141 144 147

LOW 28 74 76 79 82 89 92 94 96 99 102 107

MID3478828489949698101104106112

HIGH 40 83 89 92 94 98 100 102 105 108 110 116

HOW TO SET E.S.P?

Static Pressure[mmAq(Pa)]

5(49) 6(59) 7(69) 8(78) 9(88) 10(98) 11(108) 12(118) 13(127) 14(137) 15(147)

Setting Value

32:01 32:02 32:03 32:04 32:05 32:06 32:07 32:08 32:09 32:10 32:11

Static Pressure[mmAq(Pa)]

4(39) 5(49) 6(59) 7(69) 8(78) 9(88) 10(98) 11(108) 12(118) 13(127) 15(147)

Setting Value

32:01 32:02 32:03 32:04 32:05 32:06 32:07 32:08 32:09 32:10 32:11

37

ENGLISH

Model Step CMM

LOW 40 82 89 92 94 98 100 102 105 108 110 113

UM60R.N30

MID 45 90 92 96 98 102 104 106 109 112 114 117

HIGH 50 94 97 100 104 107 109 112 115 117 119 121

Static Pressure[mmAq(Pa)]

4(39) 5(49) 6(59) 7(69) 8(78) 9(88) 10(98) 11(108) 12(118) 13(127) 15(147)

Setting Value

32:01 32:02 32:03 32:04 32:05 32:06 32:07 32:08 32:09 32:10 32:11

ENGLISH

38

1. Be sure to set the value refering table 2. Unexpected set value will cause mal-function.

2. Table 2 is based at 230V. According to the fluctuation of voltage, air flow rate varies.

3. Factory Set(External Static Pressure) each Model

HOW TO SET E.S.P?

NOTE

!

Model Factory set (E.S.P.) mmAq(Pa)
CM18R.N10
CM24R.N10
UM30R.N10
UM36R.N20
UM42R.N20
UM48R.N30
UM60R.N30

* If it is zero static pressure, please set value below Maximum value.

Model Maximum value
CM18R.N10
CM24R.N10
UM30R.N10

UM42R.N20
UM48R.N30
UM60R.N30

6(59)

115

120UM36R.N20

98

SELF-DIAGNOSIS FUNCTION

Indoor Unit Error

Ex) Error 03 (Remote controller error)

3 Times 3 Times 3 Times

LED02G

(GREEN)

2 s

2 s

SELF-DIAGNOSIS FUNCTION

39

ENGLISH

CL09R N20
CL12R N20

Error

Code

CL18R N20

CM18R N10

Description

CM24R N10
UM30R N10

CL24R N30

01 Indoor Room sensor error 0
02 Indoor in-pipe sensor error 0
03 Remote controller error 0
04 Drain pump error 0
05 Communication error indoor and outdoor 0
06 Indoor out-pipe sensor error 0
09 EEPROM error (indoor) 0
10 BLDC motor fan lock (indoor)

1time ◑

LED 1

(Red)

1time ◑
2times ◑
3times ◑
4times ◑
5times ◑
6times ◑
9times ◑

UM36R N20
UM42R N20
UM48R N30
UM60R N30

LED 2

(Green)

0 OFF

Indoor
status

OFF
OFF
OFF
OFF
OFF
OFF
OFF

* Because remote controller turn off when occur ERROR in simultaneous operation system, it

should check LED blinks of outdoor in order to confirm error code.

* Repeatedly after LED1 is turned on and off as the Error code number of tens digit, LED2 is

turned on and off as the Error code number of single-digit.

ENGLISH

Indoor PCB

40

DIP SWITCH SETTING

SW3 Group Control

SW4

SW5 Installation

DIP SWITCH SETTING

Indoor PCB

Indoor PCB

Function Description Setting Off Setting On Default

Dry Contact

Mode

Selection of Master

or Slave

Selection of Dry

Contact Mode

Fan continuous

operation

Wired/Wireless remote

Selection of Manual or Auto

Continuous operation

Master Slave Off

controller

operation Mode

Removal

Auto Off

Working Off