www.lg.com
INSTALLATION MANUAL
AIR
CONDITIONER
P/NO : MFL67855405
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.
[
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
For more information, Refer to the CD or LG Web site (www.lg.com).
CEILING CASSETTE
Original instruction
ENGLISH
ITALIANO
ESPAÑOL FRANÇAIS
DEUTSCH
ΕΛΛΗΝΙΚΆ
ČEŠTINA
NEDERLANDS
POLSKI
LIMBA ROMÂNĂ
2 Multi-Type Air Conditioner
Multi Type Air Conditioner Installation Manual
CONTENTS
Safety Precautions
..........................................................................................
3
Installation of Indoor
.......................................................................................
6
Test running
..................................................................................................
19
Optional Operation
........................................................................................
21
OUT-LINE OF INSTALLATION
1) Selection of the best location ......................6
2) Ceiling opening dimensions and hanging
bolt location(unit: mm).................................8
3) The Indoor Unit Installation .........................9
4) Remote Controller Installation ....................9
5) Wiring Connection.....................................12
ELECTRICAL WIRING..............................13
6) Connecting Pipes to the Indoor Unit .........14
PIPING CONNECTION.............................15
7) Installation of Decorative Panel.................16
8) Indoor Unit Drain Piping............................18
HEAT INSULATION...................................19
1) PRECAUTIONS IN TEST RUN.................19
CHECK THE FOLLOWING ITEMS WHEN
INSTALLATION IS COMPLETE
..................19
2) Connection of power supply......................20
3) Evaluation of the performance ..................20
1) Test Run Mode..........................................21
2) Setting Address of Central Control............22
3) Thermistor ................................................23
4) Ceiling Height Selection............................24
5) Group Setting............................................25
6) Dry Contact Mode Setting.........................26
7) Celsius / Fahrenheit Switching..................27
8) Optional Function Setting..........................28
Installer Setting Code Table ..........................29
Safety Precautions
Installation Manual 3
ENGLISH
To prevent injury to the user or other people and property damage, the following instructions
must be followed.
n
Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness
is classified by the following indications.
n Meanings 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.
WARNING
Be sure not to do.
Be sure to follow the instruction.
Safety Precautions
n Installation
Do not use a defective
or underrated circuit
breaker. Use this appliance on a dedicated
circuit.
• There is risk of fire or
electric shock.
For electrical work, contact the dealer, seller, a
qualified electrician, or
an Authorized Service
Center.
• Do not disassemble or
repair the product.
There is risk of fire or
electric shock.
Always ground the
product.
• There is risk of fire or
electric shock.
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.
4 Multi-Type Air Conditioner
Safety Precautions
Do not modify or
extend the power cable.
• There is risk of fire or
electric shock.
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.
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 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.
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 risk of fire or failure of product.
n Operation
Do not store or use flammable gas or combustibles near the product.
• There is risk of fire or failure of product.
Safety Precautions
Installation Manual 5
ENGLISH
CAUTION
n 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.
6 Multi-Type Air Conditioner
Installation of Indoo
Installation of Indoor
1. Indoor unit
• 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.
Selection of the best location
Unit:cm
Ceiling
Ceiling Board
Ceiling Board
30 or more
Above 250
330 or less
100
or more
50 or
more
50 or
more
30 or less
Floor
Unit:cm
Ceiling
Ceiling Board
Ceiling Board
20 or more
Above 250
330 or less
100
or more
50 or
more
50 or
more
30 or less
Floor
h Please use an annexed sheet or the corru-
gated cardboard on the bottom of packing as
installation sheet.
h When using the bottom sheet, please use it
after separating the installation sheet from
packing of the product floor by using a knife
etc as a picture below.
Annexed sheet
Or
Packing corrugated
cardboard on the
bottom
Installation of Indoor
Installation Manual 7
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.
• Horizontly install the unit using a level
gauge.
•
During the installation, care should be
taken not to damage electric wires.
Ceiling opening dimensions and hanging bolt location
• The dimensions of the paper model for installing are the same as those of the ceiling opening dimensions.
Ceiling board
Level gauge
Ceiling
1,000 (Ceiling opening)
931.6
893.4 (Hanging bolt)
330 (Hanging bolt)
860
390
60
450 (Ceiling opening)
60
Unit: mm
585~660
517
461
517
585~660
523
570
570
319
Unit: mm
875
787
684
671
875
840
840
Set screw of
paper model (4 pieces)
Paper model
for installation
Ceiling board
150mm
Adjust the same height
Ceiling board
Ceiling
Flat washer for M10
(accessory)
Keep the length of the bolt
from the bracket to 40mm
Open the ceiling board
along the outer edge of the
paper model
Flat washer for M10
(accessory)
Hanging bolt
(W3/8 or M10)
Nut
(W3/8 or M10)
Nut
(W3/8 or M10)
Spring washer
(M10)
Air Conditioner body
Installation of Indoor
The Indoor Unit Installation
8 Multi-Type Air Conditioner
2. Avoid installing air conditioner in such circumstances where cutting oil mist or iron powder is in
suspension in factories, etc.
3. Avoid places where inflammable gas is generated, flows in, is stored or vented.
4. Avoid places where sulfurous acid gas or corrosive gas is generated.
5. Avoid places near high frequency generators.
• Thoroughly study the following installation locations:
1. In such places as restaurants and kitchens, considerable amount of oil steam and flour adhere
to the turbo fan, the fin of the heat exchanger and the drain pump, resulting in heat exchange
reduction, spraying, dispersing of water drops, drain pump malfunction, etc.
In these cases, take the following actions:
• Make sure that the ventilation fan for smoke-collecting hood on a cooking table has sufficient
capacity so that it draws oily steam which should not flow into the suction of the air conditioner.
• Make enough distance from a cooking room to install the air conditioner in such a place
where it may not suck in oily steam.
Use the ventilation fan
for smoke-collecting
hood with sufficient
capacity.
Cooking table
Air conditioner
Take enough
distance
NOTICE
Hanging bolt
Installation Manual 9
Installation of Indoor
ENGLISH
• The following parts is option.
① Hanging Bolt - W 3/8 or M10
② Nut - W 3/8 or M10
③ Spring Washer - M10
④ Plate Washer - M10
CAUTION:
Tighten the nut and bolt
to prevent unit falling.
• Drill the piping hole on the wall slightly tilted to the
outdoor side using a Ø 70 hole-core drill.
*( ) → TQ/TR : 31~34mm
TP : 15mm
(W3/8 or M10)
Nut
(W3/8 or M10)
Spring washer
(M10)
Keep the length of the bolt
from the bracket to 40mm
Flat washer for M10
(accessory)
Flat washer for M10
(accessory)
Nut
(W3/8 or M10)
Ceiling board
Adjust the same height
Ceiling
Air Conditioner body
Keep the length of *( )mm between
the air conditioner bottom surface
and the ceiling surface
Paper model
for installation
Ceiling board
Set screw of
paper model (4 pieces)
Open the ceiling board
along the outer edge of the
paper model
90mm
Wall
Indoor Outdoor
5~7mm
10 Multi-Type Air Conditioner
Remote Controller Installation
Remote Controller Installation
1
2
3
2
3
<Wire guide grooves>
1. 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.
Please set up remote controller board fit to the reclamation box if there is a reclamation box.
- Install the product so as not to make a gap with the wall side and to prevent shaking after the installation.
2. 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.
h
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
Installation Manual 11
ENGLISH
Wall
Side
Wall
Side
Wall
Side
Wall
Side
<Connecting order>
<Separating order>
3. 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.
- There are two separating holes. Please individually separate
one at a time.
- Please be careful not to damage the inside
components when separating.
4. Please connect indoor unit and remote controller using connection cable.
5. Please use extension cable if the distance between wired remote controller and
indoor unit is more than 10m.
Please check if connector is normally connected.
Connecting cable
Indoor
Unit side
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.
CAUTION
12V Red
Signal Yellow
GND Black
12 Multi-Type Air Conditioner
Remote Controller Installation
Wiring Connection
• Open the control box cover and connect the Remote controller cord and Indoor power wires.
Remote Controller
Cable
Connecting
Cable
Terminal Block of Outdoor Unit
L N 1(L) 2(N) 3 4 1(L) 2(N) 3 4 5
Terminal Block of Indoor Unit
POWER INPUT
OPTION
TO AIR
FRESH
KIT
WARNING: Make sure that the screws of the terminal are free from
looseness.
Attach insulation sleeve
Round crimp-style terminal
Electricwire
Connect wires of the same gauge to both sides
Installation Manual 13
ENGLISH
Remote Controller Installation
ELECTRICAL WIRING
1. All wiring must comply with LOCAL REGULATIONS.
2. Select a power source that is capable of supplying the current required by the air conditioner.
3. Feed the power source to the unit via a distribution switch board designed for this purpose.
4. The terminal screws inside the control box may be loose due to vibration during transport.
Check the screws for loose connection.
(Running the air conditioner with loose connection can overload and damage electrical components.)
5. Always ground the air conditioner with a grounding wire and connector to meet the LOCAL REGULATION.
14 Multi-Type Air Conditioner
Remote Controller Installation
Connecting Pipes to the Indoor Unit
Preparation of Piping
Main cause of gas leakage is defect in flaring
work. Carry out correct flaring work in the following procedure.
1. Cut the pipes and the cable.
• Use the accessory piping kit or the pipes
purchased locally.
• Measure the distance between the indoor
and the outdoor unit.
• Cut the pipes a little longer than measured
distance.
•
Cut the cable 1.5m longer than the pipe
length.
2. Burrs removal
• Completely remove all burrs from the cut
cross section of pipe/tube.
•
Put the end of the copper tube/pipe to downward direction as you remove burrs in order to
avoid to let burrs drop in the tubing.
3. Putting nut on
• Remove flare nuts attached to indoor and
outdoor units, than put them on pipe/tube
having completed burr removal.
(Not possible to put them on after flaring work)
4. Flaring work
•
Carry out flaring work using dedicated flaring tool for R-410A as shown below.
Firmly hold copper tube in a bar(or die) as
indicated dimension in the table above.
5. Check
• Compare the flared work with figure below.
• If flare is noted to be defective, cut off the
flared section and do flaring work again.
Outside diameter A
mm inch mm
Ø6.35 1/4 1.1~1.3
Ø9.52 3/8 1.5~1.7
Ø12.7 1/2 1.6~1.8
Ø15.88 5/8 1.6~1.8
Ø19.05 3/4 1.9~2.1
Copper
tube
Point down
Copper tube
Slanted Uneven Rough
90°
Pipe
Flare nut
Reamer
Bar
Copper pipe
Smooth all round
Even length
all round
Handle
Bar
"A"
Clamp handle
Inside is shining without scratches
= Improper flaring =
Inclined
Surface
damaged
Yoke
Red arrow mark
Cracked Uneven
thickness
Cone
Remote Controller Installation
Installation Manual 15
ENGLISH
Piping Connection
1. Form the piping according to its routing. Avoid
bending and bending back the same piping
point more than three times. (This will result
in hardening the pipe.)
2.
After deforming the piping, align centers of the
union fitting of the indoor unit and the piping,
and tighten them firmly with wrenches.
3. Connect pipe to the service valve or ball valve
which is located below the outdoor unit.
4. After completing the piping connection, be
sure to check if there is gas leakage in indoor
and outdoor connection.
Vacuum drying
After completing the piping connection, execute vacuum
drying for the connecting piping and the indoor unit.
The vacuum drying must be carried out using the
service ports of both the liquid and gas side valves.
Connection of the pipes
1. When piping installation work you must be
used the connector.
Connecting pipe size
Outdoor
unit
Liquid side
Flare connection
Flare connection
Gas side
Indoor
unit
A
B
Gas side Liquid side
ABA B
24k
Ø15.88 Ø12.7 Ø9.52 Ø6.35
30k, 36k - - Ø9.52 Ø6.35
Indoor Units
Indoor Units Gas side Liquid side
7k, 9k, 12k Ø9.52 Ø6.35
18k, 24k Ø12.7 Ø6.35
30k, 36k
Ø15.88 Ø6.35
Flare nut fastening torque
mm inch kgf.m
Ø6.35 1/4 1.8~2.5
Ø9.52 3/8 3.4~4.2
Ø12.7 1/2 5.5~6.6
Ø15.88 5/8 6.3~8.2
Ø19.05 3/4 9.9~12.1
2. Align the center of the pipings and sufficiently tighten the flare nut by hand
3. Finally, tighten the flare nut with torque wrench until the wrench clicks.
n When tightening the flare nut with torque wrench, ensure the direction for tightening follows the
arrow on the wrench.
CAUTION:
Use two wrenches and tighten with regular torque.
Installation of Decorative Panel
Remote Controller Installation
16 Multi-Type Air Conditioner
The decorative panel has its installation direction.
Before installing the decorative panel, always remove the paper template.
1. Remove the packing and take out air inlet
grille from front panel.
2. Remove the Corner covers of the panel.
3. Fit the panel on the unit by inserting
hooks as shown in picture.
4. Insert two screws on diagonal corners of
panel. Do not tighten the bolts completely.
(The fixing screws are included in the
indoor unit box.)
Check the alignment of panel with the
ceiling. Height can be adjusted using
hanging bolts as shown in picture. Insert
the other two screws and tighten all
screws completely.
Front grille
Coner cover
Hook clip
Hook
Installation Manual 17
Remote Controller Installation
ENGLISH
5. Fit the corner covers.
6. Open two screws of control panel cover.
7. Connect one display connector and two
vane control connectors of front panel to
indoor unit PCB.
The position marking on PCB is as:
Display connector : CN-DISPLAY
Vane control connector: CN-VANE 1,2
8. Close the cover for control box.
9. Install the air inlet grille and Filter on the
panel.
Screw
CN-VANE 1,2
CN-DISPLAY
CAUTION:
Install certainly the decorative panel.
Cool air leakage causes sweating. Water drops fall.
• 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.
• The outside diameter of the drain connection
on the indoor unit is 32mm.
• Be sure to execute heat insulation on the
drain piping.
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.
Air conditioner
unit
Ceiling
board
Decorative panel
Decorative
panel
Fit the insulator (this part) and
be careful for cool air leakage
Good example
Air
Cool air leakage
(no good)
Bad example
Ceiling
board
Air conditioner unit
Maintenance
drain port
Upward
routing
not allowed
Pipe clamp
Indoor unit
1/50~1/100
MAX 700mm
Feed water
Drain Pump
Drain pan
Flexible drain hose
(accessory)
Main
drain pipe
Glue the joint
Drain
port
Drain hose connection
Use the clip (accessory)
Piping material: Polyvinyl chloride pipe VP-25
and pipe fittings
Heat insulation material: Polyethylene foam with thickness more than 8 mm.
Indoor Unit Drain Piping
18 Multi-Type Air Conditioner
Remote Controller Installation
Remote Controller Installation
Installation Manual 19
ENGLISH
HEAT INSULATION
1. Use the heat insulation material for the refrigerant piping which has an excellent heat-resistance (over 120°C).
2. 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:
• Heat insulation material to be prepared... Adiabatic glass wool with thickness 10 to 20mm.
• Stick glass wool on all air conditioners that are located in ceiling atmosphere.
1. PRECAUTIONS IN TEST RUN
• The initial power supply must provide at least 90% of the rated voltage.
Otherwise, the air conditioner should not be operated.
CAUTION
① For test run, carry out the cooling operation firstly even during heating
season. If heating operation is carried out firstly, it leads to the trouble
of compressor. Then attention must be paid.
② Carry out the test run more than 5 minutes without fail.
(Test run will be cancelled 18 minutes later automatically)
• The test run is started by pressing the room temperature checking button and down timer button
for 3 seconds at the same time.
• To cancel the test run, press any button.
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, outside temperature, suction temperature, blow 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 complete
(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?
M4......118N.cm{12kgf.cm} M5......196N.cm{20kgf.cm}
M6......245N.cm{25kgf.cm} M8......588N.cm{60kgf.cm}
Test running
Indoor unit
Fastening band
(accessory)
Refrigerant piping
Thermal insulator
(accessory)
20 Multi-Type Air Conditioner
Test running
2. Connection of power supply
1. Connect the power supply cord to the independent power supply.
• Circuit breaker is required.
2. Operate the unit for fifteen minutes or more.
3. Evaluation of the performance
1. Measure the temperature of the
intake and discharge air.
2. Ensure the difference between the
intake temperature and the discharge
one is more than 8°C (Cooling) or
reversely (Heating).
CAUTION: After the confirmation of the above conditions, prepare the wiring as follows:
1) 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.
2) Provide a circuit breaker switch between power source and the unit.
3) The screw which fasten the wiring in the casing of electrical fittings are liable to come
loose from vibrations to which the unit is subjected during the course of transportation.
Check them and make sure that they are all tightly fastened. (If they are loose, it could
give rise to burn-out of the wires.)
4) Specification of power source
5) Confirm that electrical capacity is sufficient.
6) Be sure that the starting voltage is maintained at more than 90 percent of the rated voltage marked on the name plate.
7) Confirm that the cable thickness is as specified in the power sources specification.
(Particularly note the relation between cable length and thickness.)
8) Never fail to equip a leakage breaker where it is wet or moist.
9) The following troubles would be caused by voltage drop-down.
• Vibration of a magnetic switch, damage on the contact point there of, fuse breaking, disturbance to the normal function of a overload protection device.
• Proper starting power is not given to the compressor.
HAND OVER
Teach the customer the operation and maintenance procedures, using the operation manual
(air filter cleaning, temperature control, etc.).
Thermometer
Optional Operation
Installation Manual 21
ENGLISH
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,
1
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.
- Please cancel the right and left of wind
direction for RAC product.
Function Code Set
Setup figure '01' blinks at the lower part
2
of 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.
22 Multi-Type Air Conditioner
Optional Operation
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
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
Set Group No. by pressing
3
button.(0~F)
Indoor No.
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.
Optional Operation
Installation Manual 23
ENGLISH
Installer Setting -Thermistor
j
The function of 2TH has different operation characteristics according to the product.
Temperature sensor selection Function
01 Remote controller Operation in remote controller temperature sensor
02 Indoor unit Operation in indoor unit temperature sensor
03 2TH
Cooling
Operation of higher temperature by comparing indoor unit's and wired remote
controller’s temperature.
(There are products that operate at a lower temperature.)
Heating
Operation of lower temperature by comparing indoor unit's and wired remote
controller's temperature.
<Thermistor Table>
This is the function to select the temperature sensor to judge the room temperature.
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
2
sensor selection menu by pressing
button, it indicates as picture below.
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.
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.
24 Multi-Type Air Conditioner
Optional Operation
Installer Setting -Ceiling Height Selection
This function is to adjust FAN Airflow rate according to ceilingheight (only cassette model)
j Ceiling height setting is available only for some products.
j Ceiling height of ‘Super high’ function may not exist depending on the indoor unit.
j Refer to the product manual for more details.
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 Selection Table>
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.
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
Installation Manual 25
ENGLISH
Installer Setting-Group Setting
It is a function for settings in group control, or 2-remote controller control.
Remote controller Function
Master
Indoor unit operates based on master remote controller at group control. (Master is set when delivering from the warehouse.)
Slave
Setup all remote controllers except one master remote controller to
slave at group control
• 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.
h Refer to the 'group control' part for details
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
master/slave selection menu as picture
below.
Select Master/ Slave by pressing
3
button.
(00: Slave, 01: Master)
Function Code Master/Slave value
Press button to save.
4
5
26 Multi-Type Air Conditioner
Optional Operation
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.
• Please refer to dry contact manual for more details.
▶
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.
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
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.
setting value
Optional Operation
Installation Manual 27
ENGLISH
Installer Setting-Celsius / Fahrenheit Switching
This function is used for switching the display between Celsius and Fahrenheit.
(Optimized only for U.S.A)
h Whenever press button in Fahrenheit mode, the temperature will increase/drop 2
degrees.
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.
Repeat pressing button to select
2
Function code 12.
Function Code conversion mode value
Ex) Fahrengeit Setting
Select Temperature unit mode by
3
pressing button.
(00: Celsius, 01: Fahrenheit)
Press button to save or release.
4
Press button to exit or
5
system will automatically exit
after 25 seconds without any
input.
28 Multi-Type Air Conditioner
Optional Operation
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.
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
the selected option function code as picture
below.
Select existing condition
3
of each mode by pressing
button.
(00: not installed,
01 : installed)
Function
Plasma purification
Electric heater
Dehumidifier
Elevation grill
Ventilation kit
Auxiliary heater
Code
20
21
22
23
24
25
Function Code Existing condition
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.
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