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.
For easy future reference write the model and serial number
down. You will find your model number on the right side of
the air conditioner.
To prevent electric shock, disconnect the power before servicing, cleaning, and installing the air conditioner.
SAFETY INFORMATION
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:
Hazards or unsafe practices that may result in severepersonalinjuryor
WARNING
CAUTION
CAUTION
death.
Hazards or unsafe practices that may result in minorpersonalinjuryor
propertydamage.
To reduce the risk of fire, explosion, electric shock, or personal injury when
using your air conditioner, follow these basic safety precautions:
Do NOT attempt.
Do NOT disassemble.
Do NOT touch.
ENGLISH
Follow directions carefully.
Unplug the power plug from the wall socket.
Make sure the machine is grounded to prevent electric shock.
Do not place the air conditioner near hazardous substances or equipment
that releases free flames to avoid fire, explosions or injuries.
• Potential risk of fire hazard or explosion.
Do not install the outdoor unit at an unstable place or elevated surface where
there is potential risk of falling.
• If the outdoor unit falls, it may cause personal injury or loss of property.
Failure or damage may occur if any changes or modification that is not
stated in the installation manual was performed. In this case, user will be
responsible for the repair expenses.
Install the air conditioner away from direct exposure to sunlight, heating
apparatus, and humid places.
• Hang curtains on windows to boost cooling efficiency and to avoid the risk of electric
shock.
Do not cut the power plug and connect to a different power cable.
Do not yank the power cable and touch the power plug with hands.
• Potential risk of fire or electric shock.
Never use a damaged or dusted power plug, power cable, or loosened power
receptacle.
• Potential risk of fire or electric shock.
Install an exclusive circuit breaker and short-circuit breaker for the air
conditioner.
• Potential risk of electric shock or fire.
Do not insert anything such as fingers or branches into the air conditioner
vents while the air conditioner is running.
• Keep the children away from the air conditioner to prevent them from putting their finger
on the air conditioner. Potential risk of personal injury.
Ensure no water gets into the air conditioner.
• Potential risk or electric shock.
• If the water gets into the air conditioner, stop and unplug the power source immediately.
Turn off the air conditioner using the provided remote control or control
accessory (if provided). Do not unplug to turn off the unit (unless there is an
immediate danger).
Do not run the air conditioner for an extended period of time in a room with
the door closed or with babies, elderly or disabled people.
• Open the door or windows to ventilate your room at least once an hour to prevent oxygen
shortage.
The air conditioner is composed of moving parts. Keep children away from
the unit to avoid physical injury.
Make sure that children take precautions against access to the air
conditioner and they do not play with the unit.
Do not clean the interior of air conditioner on your own.
• You may damage the parts which can cause electric shock or fire.
• Consult contact center for cleaning the interior of the air conditioner.
Do not connect the air conditioner with heating apparatus or attempt to
disassemble, remodel or repair it yourself.
• Potential risk of malfunction, electric shock or fire. If repairs are needed, consult the
contact center.
Consult the place of purchase or contact center to install, reinstall or
disassemble the air conditioner.
• Improper installation carries a risk of unit malfunction, water leakage, electric shock or fire.
• If installing in specialty areas, such as a factory complex or saline coastal area, consult
the place of purchase or contact center for specific installation details.
• The units must be installed according to distances declared, in order to permit
accessibility from each side, either to guarantee correct operation of maintenance or
repairing products. The unit’s parts must be reachable and removable completely under
safety condition (for people or things).
Consult a dealer regarding the appropriate measures to prevent the allowable
concentration from being exceeded.
• If the refrigerant leaks, and cause the concentration limit to be exceeded, hazards due to
lack of oxygen in the room may result.
If the indoor unit gets wet, turn the power off immediately and call your
nearest contact center.
• Potential risk of fire or electric shock.
Always make sure that the power supply is compliant with current safety
standards. Always install the air conditioner in compliance with current local
safety standards.
Verify that the voltage and frequency of the power supply comply with
the specifications and that the installed power is sufficient to ensure the
operation of any other domestic appliance connected to the same electric
lines.
Use a rated circuit breaker only.
• Never use steel wires or copper wires as a circuit breaker. It may cause fire or unit
malfunctions.
Do not put undue stress or place heavy object on the power cable.
Do not bend the power cable excessively.
• Potential risk of fire or electric shock.
To protect the product from water and possible shock, you should keep the
power cable and the connection cord of the indoor and outdoor units in the
protection tube.
When opening or closing the front panel, use a stable stool and watch your
steps carefully.
ENGLISH
Disconnect the air conditioner from power supply before it is repaired or
disassembled.
Clean the air conditioner after the inner fan stops operating.
Use a receptacle that has a ground terminal. The receptacle must be used
exclusively for the air conditioner.
• Improper electrical grounding may cause electric shock or fire.
Be sure to ground the unit. Do not connect the ground wire to gas or water
pipes, lighting rods, or telephone grounding lines.
• If the unit is not properly grounded, electric shock may result.
If you smell burning plastic, hear strange sounds, or see smoke coming from
the unit, unplug the air conditioner immediately and call a contact center.
• Potential risk of fire or electric shock.
CAUTION SIGNS
CAUTION
Do not block or place items in front of the air conditioner. Do not step, hang
onto, or place heavy items on the air conditioner.
• Potential risk of personal injury.
If failure or damage occurs on the conditions of improper use not followed by
the installation manual, there will be an extra labor charge for installing and
construction.
• Potential risk of malfunction, electric shock or fire if repairs or installations are attempted
by a non-qualified service technician.
Do not spray flammable gases such as insecticide near the air conditioner.
• Potential risk of electric shock, fire or unit malfunction.
Do not open the front grille during operation.
• Potential risk of electric shock or unit malfunction.
Cool air should not flow directly towards people, pets, and plants.
• It is harmful to your health, pets, and plants.
Do not drink drain water coming out of the air conditioner.
• Potential risk of health hazard.
Do not allow children to climb on the air conditioner.
Do not use the air conditioner as a cooling precision instrument for food,
pets, plants, cosmetics or machinery.
Do not pull or give excessive shock to the air conditioner.
• Potential risk of fire, or unit malfunction and there are risk of personal injury because unit
may fall down.
Do not spray water directly on the air conditioner or use benzene, thinner or
alcohol to clean the surface of the unit.
• Potential risk of electric shock or fire.
• Potential risk of damage to the air conditioner.
Do not place any objects, especially containers with liquid.
Do not touch the pipe connected to the air conditioner.
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.
Install the outdoor unit where operating noise and vibration will not disturb
your neighbor and in a well-ventilated area with no obstacle.
• Potential risk of malfunction.
• Operating noise may disturb your neighbor.
Make sure that there are no obstacles or covers that block the air conditioner.
Allow sufficient space for air circulation.
• Insufficient ventilation may result in poor performance.
If the power cable is damaged, the manufacturer or a qualified service
technician must replace it.
If a power outage occurs while the air conditioner is working, turn off the
power source immediately.
Max current is measured according to IEC standard for safety and current is
measured according to ISO standard for energy efficiency.
Check for damage on delivery. If damaged, do not install the air conditioner
and call the place of purchase immediately.
Keep indoor temperatures stable and not extremely cold, especially where
there are children, elderly or disabled people.
The packaging material and used batteries of the remote controller (optional)
must be disposed of in accordance with the national standards.
The refrigerant used in the air conditioner must be treated as chemical waste.
Dispose the refrigerant following national standards.
Have a qualified service technician install the air conditioner and perform a
trial operation.
Firmly connect the drain hose to the air conditioner for proper water
drainage.
Check for damages on the outdoor unit installation pad at least once a year.
• Potential risk of personal injury or property loss.
When using a wireless remote control, the distance should not be more than
7 meters from the air conditioner.
If the remote control is not used for a long period of time, remove the
batteries to prevent leakage of electrolyte.
When cleaning the outdoor unit, touch the heat exchanger radiator fins with
extreme care.
• Wearing thick gloves can protect your hands.
Make sure that the condensed water dripping from the drain hose runs out
properly and safely.
The 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:
Young children should be supervised to ensure that they do not play with the
appliance.
Inspect the condition, electric connections, pipes and external case of the air
conditioner regularly by a qualified service technician.
Do not open doors and windows in the room being cooled during operation
unless necessary.
Do not block the air conditioner vents. If objects block the air flow, it may
cause unit malfunction or poor performance.
Make sure there are no obstacles under the indoor unit.
• Potential risk of fire or loss of property.
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.
Our 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.
Ensure the off-on and protection switches are properly installed.
Do not use the air conditioner if damaged. If problems occur, immediately
stop operation and disconnect the plug from the power supply.
If the air conditioner will not be used for an extended period of time (for
example, over several months), unplug the power from the wall.
Call the place of purchase or a contact center if repairs are needed.
• Potential risk of fire or electric shock if disassembly or repairs are attempted by a
non-qualified service technician.
13 Periodical checks
13 Internal protections via the unit control
system
14 Troubleshooting
15 Operation ranges
INSTALLING YOUR
AIR CONDITIONER
16 Installation part
16
This product has been determined to be in compliance with the Low Voltage Directive (2006/95/EC), and the Electromagnetic
Compatibility Directive (2004/108/EEC) of the European Union.
Correct Disposal of This Product
(Waste Electrical & Electronic Equipment)
(Applicable in the European Union and other European countries with separate collection systems)
This marking on the product, accessories or literature indicates that the product and its electronic accessories (e.g. charger, headset, USB cable) should not be
disposed of with other household waste at the end of their working life. To prevent possible harm to the environment or human health from uncontrolled waste
disposal, please separate these items from other types of waste and recycle them responsibly to promote the sustainable reuse of material resources.
Household users should contact either the retailer where they purchased this product, or their local government office, for details of where and how they
can take these items for environmentally safe recycling.
Business users should contact their supplier and check the terms and conditions of the purchase contract. This product and its electronic accessories
should not be mixed with other commercial wastes for disposal.
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.
SLIM DUCT S TYPE
Ceiling
Air intake
Air outlet
Your air conditioner may look slightly different from the illustration shown above depending
on your model.
Here are some tips that you would follow when using your air conditioner.
TOPICRECOMMENDATION
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.
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.
ENGLISH
High indoor/outdoor
temperatures
Power failure• If a power failure occurs during the operation of the air conditioner, the
Protection mechanism• If the air conditioner has just been turned on after operation stops or being
• 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.
operating immediately stops and unit will be off. When power returns, the
air conditioner will run automatically.
plugged in, cool/warm air does not come out for 3 minutes to protect the
compressor of the outdoor unit.
For the best performance from your air conditioner, clean it periodically. When cleaning, make sure to
unplug from the unit for user’s safety.
CLEANING THE FILTER
When cleaning the filter, make sure to unplug the power from the unit. Washable foam based Air filter
captures large particles from the air. The filter is cleaned with a vacuum or by hand washing.
Slim duct type
1. Slide out the Air filter on the rear side panel to the right side.
2. Clean the Air filter with a vacuum cleaner or soft brush. If dust is too heavy, then rinse it with
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.
ENGLISH
TypeDescriptionMonthly
Clean the air filter (1)
Clean the condensate drain pan (2)
Indoor unit
Outdoor
unit
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.
Thoroughly clean the heat exchanger (2)
Clean the condensate drain pipe (2)
Replace the remote control batteries (1)
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)
Every4
months
Oncea
year
Internal protections via the unit control system
This internal protection operates if an internal fault occurs in the air conditioner.
TypeDescription
Against cold air
De-ice cycle
Anti-protection of
internal battery
Protect compressor
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.
The internal fan will be off to against cold air when the heat pump is heating.
The internal fan will be off to against cold air when the heat pump is heating.
The compressor will be off to protect internal battery when the air conditioner
operates in Cool mode.
The air conditioner does not start operating immediately to protect the compressor of the outdoor unit after it has been started.
cleaning and maintaining the air conditioner _13
appendix
TROUBLESHOOTING
Refer to the following chart if the air conditioner operates abnormally. This may save time and unnecessary
expenses.
PROBLEMSOLUTION
The air conditioner does not
operate immediately after it
has been restarted.
The air conditioner does not
work at all.
The temperature does not
change.
The cool (warm) air does
not come out of the air
conditioner.
The fan speed does not
change.
• 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.
• 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.
• Check if you selected Fan mode. Press the Mode button on the remote control to select another mode.
• 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. Clean the air filter every two weeks.
• 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.
• Check if the air conditioner is only available in Cool mode.
• Check if the remote control is only available for cooling model.
• 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.
The air conditioner makes a
bubbling sound.
Water is dripping from the
air flow blades.
Remote control is not
working.
The air conditioner does not
turn on or off with the wired
remote control.
The wired remote control
does not operate.
The indicators of the digital
display flashes.
• 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.
• 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.
• 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.
• 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.
• Check if you set the wired remote control for group control.
• 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.
• Press the Power button on the remote control to turn the unit off and switch the
circuit breaker off. Then, switch it on again.
The table below indicates the temperature and humidity ranges the air conditioner can be operated within.
Refer to the table for efficient use.
MODE
COOLING18˚C to 32˚C-5˚C to 43˚C80% or less
HEATING27˚C or less-20˚C to 24˚C-
DRYING18˚C to 32˚C-5˚C to 43˚C-
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.
OPERATIONALTEMPERATURE
INDOOROUTDOOR
INDOORHUMIDITYIFOUTOFCONDITIONS
Condensation may occur on
the indoor unit with risk to have
either water blow off or drops on
the floor.
Internal protection triggers and
the air conditioner will stop.
Condensation may occur on
the indoor unit with risk to have
either water blow off or drops on
the floor.
It is recommended to install the Y-joint before installing the
indoor unit.
Place the pattern sheet on the ceiling at the spot where you
1.
want to install the indoor unit.
Note
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.
Hang the indoor unit to the suspension bolts between two nuts.
5.
Note
Screw the nuts to suspend the unit.
6.
Adjust level of the unit by using measurement plate for all 4 sides.
7.
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
For proper drainage of condensate, give a 3mm
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.
3mm
g NDLH: 3mm
Drain hose port
Insert bolt anchors, use existing ceiling supports or
2.
construct a suitable support as shown in figure.
Concrete
Insert
Hole in anchor
Hole in plug
Suspension bolt(3/8" or M10)
Install the suspension bolts depending on the ceiling type.
3.
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.
Screw eight nuts to the suspension bolts making space for
4.
hanging the indoor unit.
four when installing the indoor unit.
You must install the suspension bolts more than
Ceiling support
Performing Leak Test & Insulation
Leak test
LEAK TEST WITH NITROGEN(before opening valves)
In order to detect basic refrigerant leaks, before recreating the
vacuum and recirculating the R410A, it’s responsible of installer
to pressurize the whole system with nitrogen(using a pressure
regulator) at a pressure above 4.1MPa(gauge).
LEAK TEST WITH R410A(after opening valves)
Before opening valves, discharge all the nitrogen into the
system and create vacuum. After opening valves check leaks
using a leak detector for refrigerant R410A.
NDLH
Leak check
Discharge all the nitrogen to create a vacuum and
charge the system.
Insulation
Once you have checked that there are no leaks in the system,
you can insulate the piping and hose.
To avoid condensation problems, place T13.0 or thicker
1.
Acrylonitrile Butadien Rubber separately around each
2. Wind insulating tape around the pipes and drain hose
avoiding to compress the insulation too much.
Insulation cover pipe
Insulation pipe
Indoor unit
Must fit tightly against
body without any gap.
Be sure to overlap
the insulation
3. Finis h wr apping in sulating tape around the rest of t he
pipes leading to the outdoor unit.
4. The pipes and e lect ri cal cables co nnec ti ng th e indoor
unit with the outdoor unit must be fixed to the wall with
suitable ducts.
All refrigerant connection must be accessible, in order
to permit either unit maintenance or removing it
completely.
5. Select the insulation of the refrigerant pipe.
Insulate the gas side and liquid side pipe referring to the
thickness according to the pipe size.
Indoor temperature of 30°C and humidity of 85% is the stan-
dard condition.
If install in a high humidity condition,use one grade thicker
insulator by referring to the table below.
If installing in an unfavorable conditions,use thicker one.
Insulator’s heat-resistance temperature should be more than
120°C.
PipePipe size
Liqued Φ6.35~Φ9.529t9t
pipe Φ12.7~Φ50.8013t13t
Φ12.70
Φ15.88
Φ19.05
Φ22.23
Gas
Pipe
Φ25.40
Φ28.58
Φ31.75
Φ38.10
Φ44.45
Φ50.8025t38t
Insulation Type(Heating/Cooling)
Standard
[30°C
Φ6.3513t19t
Φ9.52
,85%
19t
High humidity
]
[30°C
EPDM,NBR
,over85%
25t
32t
Remarks
]
Internal temperature
is higher than 120°C
Drain pipe and Drain Hose Installation
NDLH
Install the drain hose as short as possible.
1.
Note
In order to discharge condensation water, the
drain hose should keep tilted.
Fix the drain hose with Cable-Tie, so that it will
not separate from the machine.
The drain pump connection port is used when
using a drain pump.
When there is no drain pump, Insulate and fix the drain
2.
hose according to the figure.
Note
Lock steel ring of the drain hose according to the
figure.
Wind and wrap steel ring and drain hose fully
with thermal insulation sponge; fix both ends of
external layer with ribbon for thermal insulation.
Indoor
unit
Metal clamp
Drain socket
Large sealing pad
Drain hose
Cable tie
Drain piping
Bonding
A-A’
ENGLISH
Install the insulation not to get wider and use
the adhesives on the connection part of it to
prevent moisture from entering.
Wind the refrigerant pipe with insulation tape
if it is exposed to outside sunlight.
Install the refrigerant pipe respecting that the
insulation does not get thinner on the bent part
or hanger of pipe.
Install horizontal drainpipe with a slope of 1/100 or more and
1.
fix it by hanger space of 1.0~1.5m.
Install U-trap at the end of the drainpipe to prevent a nasty
2.
smell to reach the indoor unit.
Do not install the drainpipe to upward position.
3.
It may cause water flow back to the unit.
1~1.5m
Flexible hose
Ceiling
Horizontal drainpipe
more than 1/100 slope
Hanger
With the drain pump
The drain pipe should be installed within 300mm to 550mm
1.
from the flexible hose and then lift down 20mm or more.
Install horizontal drainpipe with a slope of 1/100 or more
2.
and fix it by hanger space of 1.0~1.5m.
Install the air vent in the horizontal drainpipe to prevent
3
water flow back to the indoor unit.
Note
You may not need to install it if there were proper
slope in the horizontal drainpipe.
The flexible hose should not be installed upward position,
4
it may cause water flow back to the indoor unit.
Air vent
300mm or less
Flexible hose
Ceiling
Within
300~550mm
1~1.5m
200mm
or more
Hanger
20mm
or more
Horizontal drainpipe
more than 1/100 slope
Centralized Drainage
Without the drain pump
Install horizontal drainpipe with a slope of 1/100 or more and
1.
fix it by hanger space of 1.0~1.5m.
Install U-trap at the end of the drainpipe to prevent a nasty
2.
smell to reach the indoor unit.
100mm or more
Ceiling
With the drain pump
Install main air vent at the front of the farthest indoor unit from
1.
the main drain when installed indoor units are more than 3.
You may need to install individual air vent to prevent water
2.
flow back at the top of each indoor unit drainpipe.
Hanger
Individual
air vent
Main drainpipe
Horizontal drainpipe
more than 1/100 slope
1~1.5m
Main air vent
Centralized horizontal drainpipe
(more than 1/100 slope)
550mm
or less
Wiring Work
Power and communication cable connection
Before wiring work, you must turn off all power source.
1.
Indoor unit power should be supplied through the
2.
breaker(ELCB or MCCB+ELB) separated by the outdoor
power.
ELCB: Earth Leakage Circuit Breaker
MCCB:Molded Case Circuit Breaker
ELB:Earth Leakage Breaker
The power cable should be used only copper wires.
3.
Connect the power cable{1(L), 2(N)} among the units within
4.
maximum length and communication cable(F1, F2) each.
Connect V1, V2(for DC12V) and F3, F4(for communication)
5.
when installing the wired remote Control.
Outdoor
Unit
220-240V~
or
MCCB+
ELCB
ELB
Indoor Unit 1
ELCB : Essential Installation
h
WARNING
Power off before connecting any wires;
Indoor PBA will be damaged while V1,V2,F3,F4
short each other.
Indoor Unit 2Indoor Unit 3
Selecting compressed ring terminal
Norminal
Norminal
dimensions
dimensions
for cable
for screw
(mm2)
(mm)
1.5
2.5
449.5±0.25.6
BDd1EFLd2t
Standard
dimension
46.6
48
46.6
48.5
(mm)
Allowance
(mm)
±0.23.4
±0.24.2
Standard
dimension
(mm)
Specification of electronic wire
Power supply MCCBELB or ELCB
Max : 242V
Min : 198V
Decide the capacity of ELCB(or MCCB+ELB) by below formula.
The capacity of ELCB(or MCCB+ELB) X [A] = 1.25 X 1.1 X ∑Ai
X
: The capacity of ELCB(or MCCB+ELB).
∑Ai : Sum of Rating currents of each indoor unit.
Refer to each installation manual about the rating current of indoor unit.
Decide the power cable specification and maximum length
within 10% power drop among indoor units.
n
∑ (
k=1
Coef: 1.55
Lk : Distance among each indoor unit[m],
Ak: Power cable specification[mm2], ik : Running current of each unit[A]