Samsung NS Series Guide

EDB98-33920A(3)
Duct Type Series
BIG duct : NS✴✴✴HH✴✴✴
Air Conditioner
user & installation manual
imagine the possibilities
Thank you for purchasing this Samsung product.
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register your product at
www.samsung.com/register
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Features of your new air conditioner
Cool Summer Offer
On those hot sweltering summer days and long restless nights, there is no better escape from the heat than the cool
comforts of home.Your new air conditioner brings an end to exhausting hot summer days and lets you rest.This summer,
beat the heat with your own air conditioner.
Cost Efficient System
Your new air conditioner not only provides maximum cooling power in the summer, but can also be an efficient heating
method in the winter with the advanced“Heat pump”system.This technology is up to 300% more efficient than electrical
heating, so you can further reduce its running cost. Now, meet year-round needs with one air conditioner.
Flexible installation
Duct type air conditioner is designed to be slimmer and offers different solutions for any shape room allowing for specific
air flow requirements. Also, the air intake can be set up on either the bottom or rear of the unit, so there is more flexibility in
installation.
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Contents
Safetyprecautions ....................................................................................................... 4
Viewingyourairconditioner ............................................................................................. 8
Usingyourairconditioner ............................................................................................... 9
Cleaningandmaintainingtheairconditioner ........................................................................... 10
Appendix ............................................................................................................... 12
Safetyprecautions ...................................................................................................... 14
Accessories ............................................................................................................. 16
Selectingtheinstallationlocation ....................................................................................... 16
Indoorunitinstallation .................................................................................................. 19
Purgingtheunit ........................................................................................................ 20
Connectingtherefrigerantpipe ......................................................................................... 20
Cutting/Flaringthepipes ............................................................................................... 21
Performingleaktest&insulation ........................................................................................ 22
Drainpipeanddrainhoseinstallation ................................................................................... 24
Wiringwork ............................................................................................................ 27
Settingtheindoorunitoptioncode ..................................................................................... 30
Settinganindoorunitaddressandinstallationoption ................................................................... 31
Optiontable ............................................................................................................ 34
Troubleshooting ........................................................................................................ 35
USING PARTS
INSTALLATION PARTS
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Safety precautions
Before using your new air conditioner, please read this manual thoroughly to ensure that you know how to safely and
efficiently operate the extensive features and functions of your new appliance.
Because the following operating instructions cover various models, the characteristics of your air conditioner may differ
slightly from those described in this manual. If you have any questions, call your nearest contact center or find help and
information online at www.samsung.com.
Important safety symbols and precautions:
WARNING Hazards or unsafe practices that may result in severe personal injury or death.
CAUTION
Hazards or unsafe practices that may result in minor personal injury or property damage.
Follow directions.
Do NOT attempt.
Make sure the machine is grounded to prevent electric shock.
Unplug the power plug from the wall socket.
Do NOT disassemble.
FOR INSTALLATION WARNING
Plug the power cord into a wall socket with the power specifications of the product or higher and use the socket
for this appliance only. In addition, do not use an extension cord.
XSharing a wall socket with other appliances using a power strip or extending the power cord may result in
electric shock or fire.
Do not use an electric transformer. It may result in electric shock or fire.
XIf the voltage/frequency/rated current condition is different, it may cause fire.
The installation of this appliance must be performed by a qualified technician or service company.
XFailing to do so may result in electric shock, fire, explosion, problems with the product, or injury.
Install a switch and circuit breaker dedicated to the air conditioner.
XFailing to do so may result in electric shock or fire.
Never install the outdoor unit in a location such as on a high external wall where it could fall.
XIf the outdoor unit falls, it may result in injury, death or property damage.
Fix the outdoor unit firmly so that the electric part of the outdoor unit is not exposed.
XFailing to do so may result in electric shock or fire.
Do not install this appliance near a heater, inflammable material. Do not install this appliance in a humid, oily or
dusty location, in a location exposed to direct sunlight and water (rain drops). Do not install this appliance in a
location where gas may leak.
XThis may result in electric shock or fire.
This appliance must be properly grounded. Do not ground the appliance to a gas pipe, plastic water pipe, or
telephone line.
XFailure to do so may result in electric shock, fire, an explosion, or other problems with the product.
XNever plug the power cord into a socket that is not grounded correctly and make sure that it is in accordance
with local and national codes.
USING PARTS
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FOR INSTALLATION CAUTION
This appliance should be positioned in such a way that it is accessible to the power plug.
XFailing to do so may result in electric shock or fire due to electric leakage.
Install your appliance on a level and hard floor that can support its weight.
XFailing to do so may result in abnormal vibrations, noise, or problems with the product.
Install the draining hose properly so that water is drained correctly.
XFailing to do so may result in water overflowing and property damage.
When installing the outdoor unit, make sure to connect the draining hose so that draining is performed
correctly.
XThe water generated during the heating operation by the outdoor unit may overflow and result in property
damage. In particular, in winter, if a block of ice falls, it may result in injury, death or property damage.
FOR POWER SUPPLY WARNING
Remove all foreign substances such as dust or water from the power plug terminals and contact points using a
dry cloth on a regular basis.
XUnplug the power plug and clean it with a dry cloth.
XFailing to do so may result in electric shock or fire.
Plug the power plug into the wall socket in the right direction so that the cord runs towards the floor.
XIf you plug the power plug into the socket in the opposite direction, the electric wires within the cable may be
damaged and this may result in electric shock or fire.
When the appliance or power plug or power cord is damaged, contact your nearest service center.
Plug the power plug into the wall socket firmly. Do not use a damaged power plug, damaged power cord or
loose wall socket.
XThis may result in electric shock or fire.
Do not pull the power cord, when unplugging the power plug.
XUnplug the power plug by holding the plug.
XFailing to do so may result in electric shock or fire.
Do not pull or excessively bend the power cord. Do not twist or tie the power cord. Do not hook the power cord
over a metal object, place a heavy object on the power cord, insert the power cord between objects, or push the
power cord into the space behind the appliance.
XThis may result in electric shock or fire.
FOR POWER SUPPLY CAUTION
When not using the air conditioner for a long period of time or during a thunder/lightning storm, cut the power
at the circuit breaker.
XFailing to do so may result in electric shock or fire.
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Safety precautions
FOR USING WARNING
If the appliance is flooded, please contact your nearest service center.
XFailing to do so may result in electric shock or fire.
If the appliance generates a strange noise, a burning smell or smoke, unplug the power plug immediately and
contact your nearest service center.
XFailing to do so may result in electric shock or fire.
In the event of a gas leak (such as propane gas, LP gas, etc.), ventilate immediately without touching the power
plug. Do not touch the appliance or power cord.
XDo not use a ventilating fan.
XA spark may result in an explosion or fire.
To reinstall the air conditioner, please contact your nearest service center.
XFailing to do so may result in problems with the product, water leakage, electric shock, or fire.
XA delivery service for the product is not provided. If you reinstall the product in another location, additional
construction expenses and an installation fee will be charged.
XEspecially, when you wish to install the product in an unusual location such as in an industrial area or near the
seaside where it is exposed to the salt in the air, please contact your nearest service center.
Do not touch the power plug or the circuit breaker with wet hands.
XThis may result in electric shock.
Do not unplug the power plug or turn the air conditioner off with the circuit breaker while it is operating.
XPlugging the power plug into the wall outlet or turning the air conditioner on from the circuit breaker may cause
a spark and result in electric shock or fire.
After unpacking the air conditioner, keep all packaging materials well out of the reach of children, as packaging
materials can be dangerous to children.
XIf a child places a bag over his or her head, it may result in suffocation.
Do not insert your fingers or foreign substances into the air inlet/outlet of the air conditioner.
XTake special care that children do not injure themselves by inserting their fingers into the product.
Do not strike or pull the air conditioner with excessive force.
XThis may result in fire, injury, or problems with the product.
Do not place an object near the outdoor unit that allows children to climb onto the machine.
XThis may result in children seriously injuring themselves.
Do not use this air conditioner for long periods of time in badly ventilated locations or near infirm people.
XSince this may be dangerous due to a lack of oxygen, Open a window at least once an hour.
If any foreign substance If any foreign substance such as water has entered the appliance, cut the power by
unplugging the power plug and turning the circuit breaker off and then contact your nearest service center.
XFailing to do so may result in electric shock or fire.
Do not attempt to repair, disassemble, or modify the appliance yourself.
XDo not use any fuse (such as cooper, steel wire, etc.)other than the standard fuse.
XFailing to do so may result in electric shock, fire, problems with the product, or injury.
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FOR USING CAUTION
Do not place objects or devices under the indoor unit.
XWater dripping from the indoor unit may result in fire or property damage.
Check that the installation frame of the outdoor unit is not broken at least once a year.
XFailing to do so may result in injury, death or property damage.
Max current is measured according to IEC standard for safety and current is measured according to ISO standard
for energy efficiency.
Do not stand on top of the appliance or place objects (such as laundry, lighted candles, lighted cigarettes,
dishes, chemicals, metal objects, etc.) on the appliance.
XThis may result in electric shock, fire, problems with the product, or injury.
Do not operate the appliance with wet hands.
XThis may result in electric shock.
Do not spray volatile material such as insecticide onto the surface of the appliance.
XAs well as being harmful to humans, it may also result in electric shock, fire or problems with the product.
Do not drink the water from the air conditioner.
XThe water may be harmful to humans.
Do not apply a strong impact to the remote controller and do not disassemble the remote controller.
Do not touch the pipes connected with the product.
XThis may result in burns or injury.
Do not use this air conditioner to preserve precision equipment, food, animals, plants or cosmetics, or for any
other unusual purposes.
XThis may result in property damage.
Avoid directly exposing humans, animals or plants from the air flow from the air conditioner for long periods of
time.
XThis may result in harm to humans, animals or plants.
This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental
capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction
concerning use of the appliance by a person responsible for their safety. Children should be supervised to
ensure that they do not play with the appliance.
FOR CLEANING WARNING
Do not clean the appliance by spraying water directly onto it. Do not use benzene, thinner or alcohol to clean
the appliance.
XThis may result in discoloration, deformation, damage, electric shock or fire.
Before cleaning or performing maintenance, unplug the air conditioner from the wall socket and wait until the
fan stops.
XFailing to do so may result in electric shock or fire.
FOR CLEANING CAUTION
Take care when cleaning the surface of the heat exchanger of the outdoor unit since it has sharp edges.
XTo avoid cutting your fingers, wear thick cotton gloves when cleaning it.
Do not clean the inside of the air conditioner by yourself.
XFor cleaning inside the appliance, contact your nearest service center.
XWhen cleaning the internal filter, refer to the descriptions in the‘Cleaning and maintaining the air conditioner’
section.
XFailure to do may result in damage, electric shock or fire.
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Viewing your air conditioner
Congratulations on the purchase of the air conditioner.We hope you enjoy the features of your air conditioner and stay cool
or warm with optimal efficiency.
Please read the user manual to get started and to make the best use of the air conditioner.
Air outlet
Air intake
• Your air conditioner may slightly look different from illustration shown above depending on your model.
NOTE
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Using your air conditioner
Tips on using your air conditioner
Here are some tips that you would follow when using your air conditioner.
TOPIC RECOMMENDATION
Cooling
• If current outside temperatures are much higher than the selected indoor temperature,
it may take time to bring the inner temperature to the desired coolness.
• Avoid drastically turning down the temperature. Energy is wasted and the room does
not cool faster.
Heating
• Since the air conditioner heats the room by taking heat energy from outdoor air, the
heating capacity may decrease when outdoor temperatures are extremely low. If you
feel the air conditioner insufficiently heats, using an additional heating appliance in
combination with the air conditioner is recommended.
Frost & De-ice
• When the air conditioner runs in Heat mode, due to temperature difference between
the unit and the outside air, frost will form.
• If this happens:
- The air conditioner stops heating.
- The air conditioner will operate automatically in De-ice mode for 10 minutes.
- The steam produced on the outdoor unit in De-ice mode is safe.
• No intervention is required; after about 10 minutes, the air conditioner operates again
normally.
• The unit will not operate when it starts to de-ice.
NOTE
Fan • Fan may not operate for about 3~5 minutes at the beginning to prevent any cold blasts
while the air conditioner is warming up.
High indoor/outdoor
temperatures
• If both indoor and outdoor temperatures are high and the air conditioner is running in
Heat mode, the outdoor unit’s fan and compressor may stop at times. This is normal;
wait until the air conditioner turns on again.
Power failure
• If a power failure occurs during the operation of the air conditioner, the operating
immediately stops and unit will be off. When power returns, the air conditioner will run
automatically.
Protection mechanism
• If the air conditioner has just been turned on after operation stops or being plugged
in, cool/warm air does not come out for 3 minutes to protect the compressor of the
outdoor unit.
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Cleaning and maintaining the air conditioner
For the best performance from your air conditioner, clean it periodically. When cleaning, make sure to unplug from the unit
for user’s safety.
Maintaining your air conditioner
If the air conditioner will not be used for an extended period of time, dry the air conditioner to maintain it in best condition.
1. Dry the air conditioner thoroughly by operating in Fan mode for 3 to 4 hours and disconnect the power plug.There may
be internal damage if moisture is left in components.
2. Before using the air conditioner again, dry the inner components of the air conditioner again by running in Fan mode for
3 to 4 hours. This helps remove odors which may have generated from dampness.
Periodical checks
Refer to the following chart to maintain the air conditioner properly.
Type Description Monthly Every 4
months Once a year
Indoor unit
Clean the air filter (1) ●
Clean the condensate drain pan (2) ●
Thoroughly clean the heat exchanger (2) ●
Clean the condensate drain pipe (2) ●
Replace the remote control batteries (1) ●
Outdoor unit
Clean the heat exchanger on the outside of the unit (2) ●
Clean the heat exchanger on the inside of the unit (2) ●
Clean the electric components with jets of air (2) ●
Verify that all the electric components are firmly
tightened (2) ●
Clean the fan (2) ●
Verify that all the fan assembly is firmly tightened (2) ●
Clean the condensate drain pan (2) ●
• The checks and maintenance operations described are essential to guarantee the efficiency of the air
conditioner.The frequency of these operations varies according to the characteristics of the area, the amount of
dust, etc.
1) The described operations should be performed more frequently if the area of installation is very dusty.
2) These operations must always be performed by qualified personnel. For more detailed information, see the
Installation Manual.
NOTE
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Maintaining your air conditioner
Internal protections via the unit control system
This internal protection operates if an internal fault occurs in the air conditioner.
Type Description
Against cold air The internal fan will be off to against cold air when the heat pump is heating.
De-ice cycle The internal fan will be off to against cold air when the heat pump is heating.
Anti-protection of internal
battery
The compressor will be off to protect internal battery when the air conditioner
operates in Cool mode.
Protect compressor The air conditioner does not start operating immediately to protect the compressor of
the outdoor unit after it has been started.
• If the heat pump is operating in Heat mode, De-ice cycle is actuated to remove frost from an outdoor unit that
may have deposited at low temperatures.
• The internal fan is switched off automatically and restarted only after the de-ice cycle is completed.
NOTE
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Appendix
Troubleshooting
Refer to the following chart if the air conditioner operates abnormally.This may save time and unnecessary expenses.
PROBLEM SOLUTION
The air conditioner does not operate
immediately after it has been
restarted.
• Because of the protective mechanism, the appliance does not start operating
immediately to keep the unit from overloading.
The air conditioner will start in 3 minutes.
The air conditioner does not work
at all.
• Check that the power plug is properly connected. Insert the power plug into
the wall socket correctly.
• Check if the circuit breaker is switched off.
• Check if there is a power failure.
• Check your fuse. Make sure it is not blown out.
The temperature does not change. • Check if you selected Fan mode.
Press the Mode button on the remote control to select another mode.
The cool (warm) air does not come
out of the air conditioner.
• Check if the set temperature is higher (lower) than the current temperature.
Press the Temperature button on the remote control to change the set
temperature. Press the Temperature button to decrease or increase the
temperature.
• Check if the air filter is blocked by dirt.
• Check if the air conditioner has just been turned on. If so, wait 3 minutes. Cool
air does not come out to protect the compressor of the outdoor unit.
• Check if the air conditioner is installed in a place with a direct exposure to
sunlight. Hang curtains on windows to boost cooling efficiency.
• Check if the cover or any obstacle is not near the outdoor unit.
• Check if the refrigerant pipe is too long.
The cool (warm) air does not come
out of the air conditioner.
• Check if the air conditioner is only available in Cool mode.
• Check if the remote control is only available for cooling model.
The fan speed does not change.
• Check if you selected Auto or Dry mode.
The air conditioner automatically adjusts the fan speed to Auto in Auto/Dry
mode.
Timer function does not set. • Check if you press the Power button on the remote control after you have set
the time.
Odors permeate in the room during
operation.
• Check if the appliance is running in a smoky area or if there is a smell entering
from outside. Operate the air conditioner in Fan mode or open the windows to
air out the room.
The air conditioner makes a bubbling
sound.
• A bubbling sound may be heard when the refrigerant is circulating through the
compressor. Let the air conditioner operate in a selected mode.
• When you press the Power button on the remote control, noise may be heard
from the drain pump inside the air conditioner.
Water is dripping from the air flow
blades.
• Check if the air conditioner has been cooling for an extended period of time
with the air flow blades pointed downwards. Condensation may generate due
to the difference in temperature.
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PROBLEM SOLUTION
Remote controller is not working.
• Check if your batteries are depleted.
• Make sure batteries are correctly installed.
• Make sure nothing is blocking your remote control sensor.
• Check that there are strong lighting apparatus near the air conditioner. Strong
light which comes from fluorescent bulbs or neon signs may interrupt the
electric waves.
The air conditioner does not turn on
or off with the wired remote control. • Check if you set the wired remote control for group control.
The wired remote control does not
operate.
• Check if TEST indicator is displayed on the wired remote control. If so, turn off
the unit and switch off the circuit breaker. Call your nearest contact center.
The indicators of the digital display
flashes.
• Press the Power button on the remote control to turn the unit off and switch
the circuit breaker off.Then, switch it on again.
Operation ranges
The table below indicates the temperature and humidity ranges the air conditioner can be operated within. Refer to the table
for efficient use.
MODE
OPERATIONAL TEMPERATURE INDOOR
HUMIDITY IF OUT OF CONDITIONS
INDOOR OUTDOOR
COOLING 18˚C to 32˚C -15˚C to 46˚C 80% or less Condensation may occur on the indoor unit with risk
to have either water blow off or drops on the floor.
HEATING 27˚C or less -20˚C to 24˚C - Internal protection triggers and the air conditioner
will stop.
DRYING 18˚C to 32˚C -5˚C to 50˚C - Condensation may occur on the indoor unit with risk
to have either water blow off or drops on the floor.
• The standardized temperature for heating is 7˚C. If the outdoor temperature drops to 0˚C or below, the heating
capacity can be reduced depending on the temperature condition. If the cooling operation is used at over
32˚C(indoor temperature), it does not cool at its full capacity.
NOTE
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Safety precautions
The following safety precautions must be taken when using your air conditioner.
WARNING
• Risk of electric shock can cause injury or death.
• Disconnect all remote electric power supplies before servicing, installing or cleaning.
• Installation must be done by the manufacturer or service agent or a similar qualified
person in order to avoid a hazard.
Installing the unit
fThe unit should not be installed by the user. Ask the dealer or authorized company to install the units.
fIf the unit is installed improperly, water leakage, electric shock or fire may result.
fMount with the lowest moving parts at least 2.5 m above the floor or grade level. (If applicable)
fThe manufacturer does not assume responsibility for accidents or injury caused by an incorrectly installed air conditioner.
If you are unsure about installation, contact an installation specialist.
fWhen installing the built-in type air conditioner, keep all electrical cables such as the power cable and the connection
cord in pipe, ducts, cable channels e.t.c to protect them against liquids, outside impacts and so on.
The air conditioner should be used only for the applications for which it has been designed: the indoor unit is not suitable
to be installed in areas used for laundry.
fThis appliance is not accessible to the general public. This appliance should be installed according to the provided
installation instruction.
fWhen installing the air conditioner in a small room, the measure not to exceed the dangerous density is needed.
- When refrigerant leaks and exceeds the dangerous density, suffocation may occur.
fIf any gas or impurities except R410A refrigerant come into the refrigerant pipe, serious problem may occur and it may
cause injury.
fUse only rated accessories and install the air conditioner with rated equipments.
- If you dont’t use the rated accessories, the air conditioner may drop from its place, water may leak or electric shock or
fire may occur.
fVentilate your room when refrigerant gas leaks during installation.
- Toxic gas may generate when refrigerant gas contacts with heat.
fOur units must be installed in compliance with the spaces indicated in the installation manual to ensure either
accessibility from both sides or ability to perform routine maintenance and repairs.The units’components must be
accessible and that can be disassembled in conditions of complete safety either for people or things.
For this reason, where it is not observed as indicated into the Installation Manual, the cost necessary to reach and repair
the unit (in safety, as required by current regulations in force) with slings, trucks, scaffolding or any other means of
elevation won’t be considered in-warranty and charged to end user.
Power supply line or circuit breaker
fIf the power cable of this air conditioner is damaged, it must be replaced by service agent or similarly qualified persons in
order to avoid a hazard.
fThe unit must be plugged into an independent circuit if applicable or connect the power cable to the auxiliary circuit
breaker. An all pole disconnection from the power supply must be incorporated in the fixed wiring with a contact
opening of >3mm.
fThe air conditioner must be installed in accordance with national wiring regulations and safety regulations wherever
applicable.
fThe electric work must be done by service agent or similarly qualified persons according to national wiring regulations
and use only rated cable.
- If the capacity of the power cable is insufficient or electric work is not properly completed, electric shock or fire may
occur.
INSTALLATION PARTS
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15
fInstall the cables with supplied cables firmly. Fix them securely so that external force is not exerted to the terminal board.
- If the connection or fixing is incomplete, heat generation, electric shock or fire may occur.
fConnect the power cable between the indoor and outdoor unit properly so that the electrical component box cover is
not get loosen and attach the cover securely.
-If the the cover is attached incompletely, heat generation, electric shock or fire of the terminal board may
occur.
• Make sure that you earth the cables.
- Do not connect the earth wire to the gas pipe, water pipe, lighting rod or telephone wire. If earthing is not
complete, electric shock or fire may occur.
• Install the circuit breaker.
- If the circuit breaker is not installed, electric shock or fire may occur.
• Make sure that the condensed water dripping from the drain hose runs out properly and safely.
• Install the power cable and communication cable of the indoor and outdoor unit at least 1m away from the
electric appliance.
• Install the indoor unit away from lighting apparatus using the ballast.
- If you use the wireless remote control, reception error may occur due to the ballast of the lighting apparatus.
• Do not install the air conditioner in following places.
- Place where there is mineral oil or arsenic acid. Resin parts flame and the accessories may drop or water may
leak.The capacity of the heat exchanger may reduce or the air conditioner may be out of order.
- The place where corrosive gas such as sulfurous acid gas generates from the vent pipe or air outlet.
- The copper pipe or connection pipe may corrode and refrigerant may leak.
- The place where there is a machine that generates electromagnetic waves.The air conditioner may not
operate normally due to control system.
- The place where there is a danger of existing combustible gas, carbon fiber or flammable dust.
- The place where thinner or gasoline is handled. Gas may leak and it may cause fire.
CAUTION
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Accessories
The following accessories are supplied with the indoor unit.
The type and quantity may differ depending on the specifications.
User & Installation manual(1) Pattern sheet(1) Insulation A(2) Insulation B(1)
Insulation pipe A(2) Insulation pipe B(1) Cable tie(4) Flexible hose(1)
Clamp hose(2) Washer(8) Grommet hanger(4) Wired remote controller(1)
Selecting the installation location
Indoor unit
fThere must be no obstacles near the air inlet and outlet.
fInstall the indoor unit on a ceiling that can support its weight.
fMaintain sufficient clearance around the indoor unit.
fMake sure that the water dripping from the drain hose runs away correctly and safely.
fThe indoor unit must be installed in this way, that they are out of public access. (Not touchable by the users.)
fAfter connecting a chamber, insulate the connection part between the indoor unit and the chamber with t10 or thicker
insulation. Otherwise, there can be air leak or dew from the connection part.
fRigid wall without vibration.
fWhere it is not exposed to direct sunshine.
fWhere the air filter can be removed and cleaned easily.
Space requirements for installation & service
fConstruction standard for inspection hole.
1) In case, the ceiling is textile, inspection hole dose not need.
2) In case, the ceiling is plaster board, inspection hole depends on inside height of the ceiling.
a. Height is more than 1m : Only“B”[Inspection for PBA] is applied.
b. Height is less than 1m : Both“A”& ”B”are applied.
c. “A”& ”B”are inspection holes.
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17
Unit Width(W)
“A”=W+100mm “B”=500mm
Unit Depth(D)+50mm
20mm or more
20mm or more
• You must have 20mm or more space between the ceiling and the bottom of indoor unit. Otherwise, the noise from
the vibration of indoor unit may bother the user.When the ceiling is under construction, the hole for check-up must be
made to take service, clean and repair the unit.
• It is possible to install the unit at an height of between 2.2~2.5m from the ground, if the unit has a duct with a well
defined lenght (300mm or more), to avoid fan motor blower contact.
Insulation guide
A
Front
C
B
Back
D
Indoor unit A B C D Front / Back
18.0kW (1240x470x1040) 1240x1040 1240x1040 470x1040 470x1040
Insulate the front and back side in proper
size at the same time when insulating the
suction duct and discharge duct.
fThickness: more than 10mm
fInsulate the end of the pipe and some curved area by using separate insulator.
fInsulate the discharge and suction part at the same time when you insulate connection duct.
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18
Selecting the installation location
Drawing of the indoor unit
140X8=1120
1306 Suspension position
1188 Air inlet duct flange
1188 Air outlet duct flange
Discharge side Suction side
1040
140X8=1120
34
1240
OD ø32
35
470
660
647
598
29 93 22
209
236
385
100X2=200
914 Suspension position
Unit : mm
No. Name Description
1Liquid pipe connection ø9.52 (3/8”)
2Gas pipe connection ø19.05(3/4”)
3Drain pipe connection VP25 (OD ø32, ID ø25)
4Drain pipe connection (Option drain pump) VP25 (OD ø32, ID ø25)
5Power supply/Communication connection -
6Air discharge grille flange -
7Suction flange -
8Hook 3/8” or M10
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19
Indoor unit installation
It is recommended to install theY-joint before installing the indoor unit.
1. Place the pattern sheet on the ceiling at the spot where you want to install
the indoor unit.
• Since the diagram is made of paper, it may shrink or stretch slightly
due to temperature or humidity. For this reason, before drilling the
holes, maintain the correct dimensions between the markings.
NOTE
2. Insert bolt anchors, use existing ceiling supports or construct a suitable
support as shown in figure.
3. Install the suspension bolts depending on the ceiling type.
• Ensure that the ceiling is strong enough to support the weight of
the indoor unit. Before hanging the unit, test the strength of each
attached suspension bolt.
• If the length of suspension bolt is more than 1.5m, it is required to
prevent vibration.
• If this is not possible, create an opening on the false ceiling in order
to be able to use it to perform the required operations on the indoor
unit.
CAUTION
4. Screw eight nuts to the suspension bolts making space for hanging the
indoor unit.
• You must install the suspension bolts more than four when
installing the indoor unit.
CAUTION
5. Hang the indoor unit to the suspension bolts between two nuts.
• Piping must be laid and connected inside the ceiling when
suspending the unit. If the ceiling is already constructed, lay the
piping into position for connection to the unit before placing the
unit inside the ceiling.
NOTE
6. Screw the nuts to suspend the unit.
7. Adjust level of the unit by using measurement plate for all 4 sides.
• For proper drainage of condensate, give a 1° slant to the left or
right side of the unit which will be connected with the drain hose,
as shown in the figure. Make a tilt when you wish to install the drain
pump, too.
NOTE
Concrete
Suspension bolt( 3/8” or M10)
Hole in anchor
Hole in plug
Insert
Ceiling support
Grommet
Hanger
Drain hose port
1°
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20
Purging the unit
On delivery, the indoor unit is loaded with inert gas.
All this gas must be purged before connecting the assembly piping.To purge the inert gas, proceed as follows.
Unscrew the pinch pipe at the end of each refrigerant pipe.
Result : All inert gas escapes from the indoor unit.
• To prevent dirt or foreign objects from getting into the pipes during
installation, do NOT remove the pinch pipe completely until you are
ready to connect the piping.
NOTE
Liquid
refrigerant port
Gas refrigerant port
Connecting the refrigerant pipe
There are two refrigerant pipes of differing diameters :
fA smaller one for the liquid refrigerant
fA larger one for the gas refrigerant
fThe inside of copper pipe must be clean & has no dust.
1. Remove the pinch pipe on the pipes and connect the assembly pipes to each
pipe, tightening the nuts, first manually and then with a torque wrench, a
spanner applying the following torque.
Outer Diameter (D) Torque (N•m)
ø 6.35 mm 16
ø 9.52 mm 42
ø 12.70 mm 55
ø 15.88 mm 65
ø 19.05 mm 100
• Must apply refrigerant oil on the flaring area to prevent a leak.
NOTE
2. Must use insulator which is thick enough to cover the refrigerant tube to
protect the condensate water on the outside of pipe falling onto the floor and
the efficiency of the unit will be better.
3. Cut off any excess foam insulation.
4. Be sure that there must be no crack or wave on the bended area.
5. It would be necessary to double the insulation thickness(10mm or more) to
prevent condensation even on the insulator when if the installed area is warm
and humid.
6. Do not use joints or extensions for the pipes that connect the indoor and
outdoor unit.The only permitted connections are those for which the units are
designed.
Refrigerant oil
Torque wrench
Flare nut
Union
Spanner
Liquid
refrigerant port
Gas refrigerant port
❋ The designs and shape are subject to
change according to the model.
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