Contents
Preparation for installation . .............................................................................................................................................................................................. 3
Deciding on where to install the indoor unit . .......................................................................................................................................................... 4
Indoor unit installation . ................................................................................................................................................................................................... 12
Purging the unit .................................................................................................................................................................................................................. 13
Connecting the refrigerant pipe . ................................................................................................................................................................................ 14
Cutting/Flaring the pipes ................................................................................................................................................................................................ 15
Performing leak test & insulation ................................................................................................................................................................................ 16
Drainpipe and drain hose installation . ..................................................................................................................................................................... 17
Connecting the connection cord ................................................................................................................................................................................ 19
Adjusting air flow.................................................................................................................................................................................................................. 20
Setting the indoor unit option code............................................................................................................................................................................ 22
Setting an indoor unit address and installation option...................................................................................................................................... 23
Troubleshooting . ................................................................................................................................................................................................................ 26
Safety precautions
Carefully follow the precautions listed below because they are essential to guarantee the safety of the equipment.
WARNING
• Always disconnect the air conditioner from the power supply before servicing it or accessing
its internal components.
• Verify that installation and testing operations are performed by qualified personnel.
• Verify that the air conditioner is not installed in an easily accessible area.
General information

Carefully read the content of this manual before installing the air conditioner and store the manual in a safe place in order to be able
to use it as reference after installation.
For maximum safety, installers should always carefully read the following warnings.

Store the operation and installation manual in a safe location and remember to hand it over to the new owner if the air conditioner is
sold or transferred.
This manual explains how to install an indoor unit with a split system with two SAMSUNG units. The use of other types of units with
different control systems may damage the units and invalidate the warranty. The manufacturer shall not be responsible for damages
arising from the use of non compliant units.
The air conditioner is compliant with the requirements of the Low Voltage Directive (72/23/EEC),
the EMC Directive (89/336/EEC) and the Directive on pressurized equipment (97/23/EEC).
The manufacturer shall not be responsible for damage originating from unauthorized changes or the improper connection of
electric and requirements set forth in the “Operating limits” table, included in the manual, shall immediately invalidate the warranty.
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.
Do not use the units if damaged. If problems occur, switch the unit off and disconnect it from the power supply.
In order to prevent electric shocks, fires or injuries, always stop the unit, disable the protection switch and contact SAMSUNG’s
technical support if the unit produces smoke, if the power cable is hot or damaged or if the unit is very noisy.
Always remember to inspect the unit, electric connections, refrigerant tubes and protections regularly. These operations should be
performed by qualified personnel only.
The unit contains moving parts, which should always be kept out of the reach of children.
Do not attempt to repair, move, alter or reinstall the unit. If performed by unauthorized personnel, these operations may cause
electric shocks or fires.
Do not place containers with liquids or other objects on the unit.
All the materials used for the manufacture and packaging of the air conditioner are recyclable.
The packing material and exhaust batteries of the remote controller(optional) must be disposed of in accordance with current laws.
The air conditioner contains a refrigerant that has to be disposed of as special waste. At the end of its life cycle, the air conditioner
must be disposed of in authorized centers or returned to the retailer so that it can be disposed of correctly and safely.
Installing the unit
IMPORTANT: When installing the unit, always remember to connect first the refrigerant tubes, then the electrical lines.
Always disassemble the electric lines before the refrigerant tubes.
 Upon receipt, inspect the product to verify that it has not been damaged during transport. If the product appears damaged,
DO NOT INSTALL it and immediately report the damage to the carrier or retailer (if the installer or the authorized technician has
collected the material from the retailer.)
 After completing the installation, always carry out a functional test and provide the instructions on how to operate the air
conditioner to the user.
 Do not use the air conditioner in environments with hazardous substances or close to equipment that release free flames to avoid
the occurrence of fires, explosions or injuries.
2

Our units should be installed in compliance with the spaces shown in the installation manual, to ensure accessibility from both
sides and allow repairs or maintenance operations to be carried out. The unit’s components should be accessible and easy to
disassemble without endangering people and objects.
For this reason, when provisions of the installation manual are not complied with, the cost required to access and repair the units
(in SAFETY CONDITIONS, as set out in prevailing regulations) with harnesses, ladders, scaffolding or any other elevation system will
NOT be considered part of the warranty and will be charged to the end customer.
Power supply line, fuse or circuit breaker
- 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.
Preparation for installation
When deciding on the location of the air conditioner with the owner, the following restrictions must be taken into account.
General
Do NOT install the air conditioner in a location where it will come into contact with the following elements :
 Combustible gases
 Saline air
 Machine oil
 Sulphide gas
 Special environmental conditions
If you must install the unit in such conditions, first consult your dealer.
Avoid installing the air conditioner :
 In areas where it is exposed to direct sunlight. Close to heat sources.
 In damp areas or locations where it could come into contact with water. (for example rooms used for laundry)
 In areas where curtains and furniture could affect the supply and discharge of air.
 Without leaving the required minimum space around the unit. (as shown in the drawing)
 In scarcely ventilated areas.
 On surfaces that are unable to support the weight of the unit without deforming, breaking or causing vibrations
during the use of the air conditioner.
 In a position that does not enable the condensate drainage pipe to be correctly installed. (at the end of the
installation. It is always essential to check the efficiency of the drainage system)
3
ENGLISH
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.
 Always verify that a suitable grounding connection is available.
 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.
 Always verify that the cut-off and protection switches are suitably dimensioned.
 Verify that the air conditioner is connected to the power supply in accordance with the instructions provided in the wiring diagram
included in the manual.
 Always verify that electric connections (cable entry, section of leads, protections…) are compliant with the electric specifications
and with the instructions provided in the wiring scheme. Always verify that all connections comply with the standards applicable
to the installation of air conditioners.
 Devices disconnected from the power supply should be completely disconnected in the condition of overvoltage category.
 Make sure that you earth the cables.

Preparation for installation
Accessories
 The following accessories are supplied with the indoor unit.
The type and quantity may differ depending on the specifications.
User’s
manual
Installation
manual
Pattern sheet
Insulation
drain
Insulation
cover pipe
Insulation
cover pipe 2
Insulation
pipe
Insulation
drain pipe
Clamp hose
Rubber
Cable-tie
Flexible hose
Wired remote control accessories
Wired remote
control
Cable-tie
Cable clamp
M4x16
tapped screw
Indoor unit
power drawing cable
Communication
cable of the wired
remote control
Wire joint
User’s
manual
Installation
manual
Deciding on where to install the indoor unit
Indoor unit






There must be no obstacles near the air inlet and outlet.
Install the indoor unit on a ceiling that can support its weight.
Maintain sufficient clearance around the indoor unit.
Make sure that the water dripping from the drain hose runs away correctly and safely.
The indoor unit must be installed in this way, that they are out of public access. (Not touchable by the users)
After 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.
Space requirements for installation & service
 Construction Standard for Inspection Hole
1) In case, the ceiling is tex tile, Inspection hole dose not need.
2) In case, the ceiling is plaster board, Inspection hole depends on Inside height of the ceiing.
a. Height is more than 3.28ft(1m) : Only "B" [Inspection for PBA] is applied.
b. Height is less than 3.28ft(1m) : Both "A"&"B" are applied.
c. "A"&"B" are inspection holes .
4
ENGLISH
Unit Depth(D)+50mm
Deciding on where to install the indoor unit
Unit Width(W)
"A"=W+100mm
"B"=500mm
20mm or more
20mm or more
 You must have20mm 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.
If you install the cassette or duct type indoor unit on the ceiling with humidity over 80%, you must apply extra
10mm of polyethylene foam or other insulation with similar material on the body of the indoor unit.
Insulation Guide
B
D
Back
Front
A
Thickness: more than 10mm
Indoor Unit
NS035LDXEA
C
900x600x199
A
900x600
B
900x600
C
600*199
D
600x199
NS052LDXEA/NS071LDXEA
NS052SDXEA
NS071SDXEA / NS090SSXE
NS100SSXE
NS090SDXEA
1100x600x199
1100x600
1100x600
600x199
600x199
900x480x260
900x480
900x480
480x260
1150x480x260
1150x480
1150x480
480X260
1150x480x320
1150x480
1150x480
480x320
NS100/125/140SDXEA
1200x650x360
1200x650
1200x650
Front/Back
Insulate the front and
back side in proper
size at the same time
480X260 when insulating the
suction duct and
discharge duct.
480x320
480x260
650x360 650x360
 Insulate the end of the pipe and some curved area by using separate insulator.
 Insulate the discharge and suction part at the same time when you insulate connection duct.
5
Deciding
on where to install the indoor unit
AA
Drawing of the indoor unit
Unit:mm
NS035LDXEA
3 256=768
71 100 10
11.9
28
28
600
477(Suspension position)
938.4 (Suspension position)
8 100=800
860 (Air outlet duct flange)
22-ø3.2 hole
(Air around)
900
650
Inspection hole
900
1000
6
No.
Name
1
2
3
4
5
6
7
8
Liquid pipe connection
Gas pipe connection
Drain pipe connection
Drain pipe connection
Power supply connection
Air discharge flange
Air filter
Hook
30.5
OD32
72.5 55
100
151.6
199
145.5
115.5
18
500
Discharge side
182
246
333
Description
ø6.35(1/4")
ø9.52(3/8")
OD32 ID26(without drain pump)
Using drain pump (Optional)
M8~M10
Suction side
Unit:mm
NS052LDXEA/NS071LDXEA
ENGLISH
(Suspension position)
(Suspension position)
(Air outlet duct flange)
hole
(Air around)
650
Inspection hole
1100
1200
500
Discharge side
No.
Name
1
2
3
4
5
6
7
8
Liquid pipe connection
Gas pipe connection
Drain pipe connection
Drain pipe connection
Power supply connection
Air discharge flange
Air filter
Hook
Suction side
Description
ø6.35(1/4")
052: ø12.70(1/2"); 071: ø15.88(5/8")
OD32 ID26(without drain pump)
Using drain pump (Optional)
M8~M10
7
Deciding
on where to install the indoor unit
AA
Drawing of the indoor unit
Unit : mm
NS052SDXEA
397 (Suspension position)
900
1000
135x5=675
7
87
500
97
900
844 (Air outlet duct flange)
6
936 (Suspension position)
530
480
8
222
Discharge side
185
90
260
Inspection hole
2
1
5
No.
1
2
3
4
5
6
7
8
8
4
3
76
132
139
Name
Liquid pipe connection
Gas pipe connection
Drain pipe connection
Drain pipe connection
Power supply connection
Air discharge flange
Air filter
Hook
Suction side
Description
ø6.35(1/4");
ø12.70(1/2")
OD32 ID26(without drain pump)
Using drain pump (Optional)
M8~M10
77
117
12
NS071SDXEA
NS090SSXE
NS100SSXE
Unit : mm
ENGLISH
530
480
18-Ø3.2 hole
(Air around)
1150
97
1250
1188 (Suspension position)
1150
904 (Air outlet duct flange)
6X135=810
397 (Suspension position)
220
500
90
90
260
185
Inspection hole
67
117
Discharge side
ODØ32
No.
1
2
3
4
5
6
7
8
Suction side
76
132
144
Name
Liquid pipe connection
Gas pipe connection
Drain pipe connection
Drain pipe connection
Power supply connection
Air discharge flange
Air filter
Hook
Description
071:ø6.35(1/4");090/100:ø9.52(3/8")
ø15.88(5/8")
OD32 ID26(without drain pump)
Using drain pump (Optional)
M8~M10
9
Deciding
on where to install the indoor unit
AA
Drawing of the indoor unit
Unit : mm
NS090SDXEA
530
500
102
1150
1250
(Air outlet duct flange)
(Suspension position)
(Suspension position)
Discharge side
10
Suction side
Inspection hole
No.
Name
Description
1
2
3
4
5
6
7
8
Liquid pipe connection
Gas pipe connection
Drain pipe connection
Drain pipe connection
Power supply connection
Air discharge flange
Air filter
Hook
ø9.52(3/8")
ø15.88(5/8")
OD32 ID26(without drain pump)
Using drain pump (Optional)
M8~M10
NS100SDXEA
NS125SDXEA
NS140SDXEA
Unit : mm
ENGLISH
700
650
1300
500
102
1200
1000 (Air outlet duct flange)
1236 (Suspension position)
534 (Suspension position)
Discharge side
Suction side
Inspection hole
No.
Name
Description
1
2
3
4
5
6
7
8
Liquid pipe connection
Gas pipe connection
Drain pipe connection
Drain pipe connection
Power supply connection
Air discharge flange
Air filter
Hook
ø9.52(3/8")
ø15.88(5/8")
OD32 ID26(without drain pump)
Using drain pump (Optional)
M8~M10
11
Indoor unit installation
AA
When deciding on the location of the air conditioner with the owner, the following restrictions must be taken into account.
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.
Concrete
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.
Insert
Hole in anchor
hole in plug
Suspension bolt(M8)-field supply
•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.
4
Ceiling support
Screw eight nuts to the suspension bolts making space for hanging
the indoor unit.
•You must install all the suspension rods.
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.
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 "A"mm 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.
When the drain hose is installed to the right.
Amm
Drain hose port
Model
NS035/052/071LDXEA
NS052/071/090/100/125/140SDXEA
NS090/100SSXE
12
A
10mm
3mm
Purging the unit
AA
From factory the unit is supplied and set with a pre-charge of nitrogen gas. (insert gas) Therefore, all insert gas must be purged
before connecting the assembly piping.
NS035/052/071LDXEA
Unscrew the pinch pipe at the end of each refrigerant pipe.
•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.
• Connect the indoor and outdoor units using pipes with flared
connections(not supplied). For the lines, use insulated, unwelded,
degreased and deoxidized copper pipe (Cu DHP type to ISO 1337 or
UNI EN 12735-1), suitable for operating pressures of at least 4200kPa
and for a burst pressure of at least 20700kPa. Copper pipe for hydrosanitary applications is completely unsuitable.
• For sizing and limits (height difference, line length, max. bends,
refrigerant charge, etc.) see the outdoor unit installation manual.
• All refrigerant connection must be accessible, in order to permit either
unit maintenance or removing it completely.
Liquid refrigerant
port Gas refrigerant port
NS052/071/090/100/125/140SDXEA
NS090/100SSXE
Liquid refrigerant port
Gas refrigerant port
13
ENGLISH
Result : All inert gas escapes from the indoor unit.
Connecting the refrigerant pipe
There are two refrigerant pipes of different diameters :
 A smaller one for the liquid refrigerant
 A larger one for the gas refrigerant
 The 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.
Refrigerant oil
Torque wrench
Spanner
Flare nut
Union
Outer Diameter (D)
Torque (N•m)
ø6.35 mm
ø9.52 mm
ø12.70 mm
ø15.88 mm
ø19.05 mm
18
42
55
65
100
•If the pipes must be shortened refer to page 15.
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.
NS052/071/090/100/125/140SDXEA
NS035/052/071LDXEA
NS090/100SSXE
Drain hose connection port
Liquid refrigerant port
Liquid refrigerant
port
14
Gas refrigerant port
Gas refrigerant
port
Drain hose connection port
Cutting/Flaring the pipes
1. Make sure that you have the required tools available. (pipe cutter, reamer, flaring tool and pipe holder)
2. If you wish to shorten the pipes, cut it with a pipe cutter, taking care to ensure that the cut edge remains at a 90° angle
with the side of the pipe. Refer to the illustrations below for examples of edges cut correctly and incorrectly.
Oblique
Rough
ENGLISH
Pipe
cutter
Burr
Pipe
3. To prevent any gas from leaking out, remove all burrs at the cut edge of the pipe, using a reamer.
4. Slide a flare nut on to the pipe and modify the flare.
Outer Diameter (D)
Pipe
Flare
ø6.35 mm
ø9.52 mm
ø12.70 mm
ø15.88 mm
ø19.05 mm
Depth (A)
1.3 mm
1.8 mm
2.0 mm
2.2 mm
2.2 mm
5. Check that the flaring is correct, referring to the illustrations below for examples of incorrect flaring.
Correct
Inclined
Damaged
Surface
Cracked
Uneven
Thickness
6. Align the pipes and tighten the flare nuts first manually and then with a torque wrench, applying the following torque.
Valve
1/4"
3/8"
1/2"
5/8"
3/4"
Flare nut
Valve cap
Pressure port cap
Valve needle
Pressure port
Wrench(mm) N•m Wrench(mm) N•m Wrench(mm) N•m Wrench(mm) N•m Wrench(mm) N•m
17
18
23
20
18
16~18 Allen(hex.) 5 9
0.34
22
42
23
20
18
16~18 Allen(hex.) 5 9
0.34
26
55
29
40
18
16~18 Allen(hex.) 5 13
0.34
29
65
29
40
18
16~18 Allen(hex.) 5 13
0.34
36
100
38
40
18
16~18 Allen(hex.) 5 13
0.34
• If the pipes require brazing ensure that OFN (Oxygen Free Nitrogen) is flowing through the system.
• Nitrogen blowing pressure range is 0.02 ~ 0.05MPa.
15
Performing
leak test & insulation
AA
NS035/052/071LDXEA
Leak test
 LEAK TEST WITH NITROGEN (before opening valves)
In order to detect basic refrigerant leaks, before recreating the vacuum and
recirculating the R-410A, it’s responsable of installer to pressurize the whole
system with nitrogen (using a cylinder with pressure reducer)
at a pressure above 30 bar (gauge).
 LEAK TEST WITH R-410A (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 R-410A.
NS052/071/090/100/125/140SDXEA
NS090/100SSXE
• 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.
1 To avoid condensation problems, place T13.0 or thicker Acrylonitrile Butadien Rubber separately around each refrigerant
pipe.
No gap
•Always make the seam of pipes face upwards.
•
The insulation has to be produced in full compliance of European regulation reg. EEC / EU 2037/ 2000 that requires the use of sheaths insulation form without using CFC and HCFC gases for health and the environment.
2 Wind insulating tape around the pipes and drain hose avoiding to compress
the insulation too much.
3 Finish wrapping insulating tape around the rest of the pipes leading to the outdoor
unit.
4 The pipes and electrical cables connecting the 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.
NBR(T13.0 or thicker)
Insulation cover pipe
Insulation pipe
Indoor unit
Be sure to overlap
the insulation
5 Select the insulation of the refrigerant pipe.
•Must fit tightly against
 Insulate the gas side and liquid side pipe referring to the thickness body without any gap.
according to the pipe size.
 Indoor temperature of 30°C and humidity of 85% is the stan dard condition.
If installing 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.
16
Pipe size
Liquid
pipe
Ø6.35 ~ Ø9.52
Ø12.7 ~ Ø19.05
Ø6.35
Ø9.52
Ø12.70
Ø15.88
Ø19.05
Gas
pipe
Insulation Type (Heating/Cooling)
Standard [30°C, 85%]
High humidity [30°C, over 85%]
EPDM, NBR
9t
9t
13t
13t
13t
19t
19t
Remarks
ENGLISH
Pipe
Internal temperature is
higher than 120°C
25t
 When installing insulation in places and conditions below, use the same insulation that is used for high humidity conditions.
<Geological condition>
- High humidity places such as shoreline, hot spring, near lake or river, and ridge (when the part of the building is covered by
earth and sand.)
<Operation purpose condition>
- Restaurant ceiling, sauna, swimming pool etc.
<Building construction condition>
- The ceiling frequently exposed to moisture and cooling is not covered.
e.g. The pipe installed at a corridor of a dormitory and studio or near an exit that opens and closes frequently.
- The place where the pipe is installed is highly humid due to the lack of ventilation system.
Drainpipe and drain hose installation
Care must be taken when installing the drain hose for the indoor unit to ensure that any condensate water is correctly drained outside.
The drain hose can be installed to the right of the base pan.
1
Insert the flexible hose to the drain hose port.
2
• Fix the flexible hose to the indoor unit with the supplied cable clamp
securely. (Use the screwdriver to fix the flexible hose securely.)
Install the drain hose so that its length can be as short as possible.
Internal diameter of the drain hose should be the same or slightly bigger than the external diameter
of the drain hose port.
Cable-tie
Clamp
32mm(Inner diameter)
• Inner diameter of the drain hose
•Give a slightly slant to the drain hose for proper drainage of
condensate.
• Fix the flexible hose to the PVC with the supplied cable tie
securely.
3
Flexible hose
Insulation drain hose
Insulation cover drain
Wrap the drain hose with the insulation drain as shown in figure and secure it.
17
Drainpipe and drain hose installation
AA
Drainpipe Connection
Without the drain pump
1. Install horizontal drainpipe with a slope of 1/100 or more and fix it by hanger space of 1.0~1.5m.
2. Install U-trap at the end of the drainpipe to prevent a nasty smell to reach the indoor unit.
3. Do not install the drainpipe to upward position. It may cause water flow back to the unit.
1~1.5m
Hanger
Flexible hose
Horizontal drainpipe
more than 1/100 slope
Ceiling
With the drain pump
1. The drain pipe should be installed within 300mm to 550mm from the flexible hose and then lift down 20mm
or more.
2. Install horizontal drainpipe with a slope of 1/100 or more and fix it by hanger space of 1.0~1.5m.
3
Install the air vent in the horizontal drainpipe to prevent water flow back to the indoor unit.
• You may not need to install it if there were proper slope in
the horizontal drainpipe.
4
The flexible hose should not be installed upward position,
it may cause water flow back to the indoor unit.
Air vent
200mm
or more
300mm or less
Flexible hose
1~1.5m
20mm
or more
Within
300~550mm
Ceiling
Hanger
Horizontal drainpipe
more than 1/100 slope
Testing the drainage
Prepare a little water about 5 liter.
1
Pour water into the base pan in the indoor unit as
shown in figure.
2
Confirm that the water flows out through the drain hose.
18
NS035/052/071LDXEA
NS052/071/090/100/125/140SDXEA
NS090/100SSXE
Connecting the connection cord
The indoor unit is powered by the outdoor unit by means of a H07 RN-F connection cable (or a more power model),
with insulation in synthetic rubber and jacket in polychloroprene(neoprene), in accordance with the requirements of standard EN 60335-2-40.
1. Remove the screw on the electrical component box and remove the cover plate.
2. Route the connection cord through the side of the indoor unit and connect the cable to terminals; refer to the figure below.
3. Route the other end of the cable to the outdoor unit through the ceiling & the hole on the wall.
4. Reassemble the electrical component box cover, carefully tightening the screw.
Wiring diagram
1 phase
1(L)
2(N)
1(L) 2(N)
Indoor Unit
L
F2
F1
N
Cable tie
Indoor Power
Main power cable
Communication cable
Cable clamp
Between Indoor and Outdoor Connection cable Specifications(Common in use)
Indoor Power supply
Power Supply
220-240V~/50Hz
Indoor Power cable
0.75~1.5mm²,3wires
Max/Min(V)
±10%
Communication Cable
0.75~1.25mm²,2wires
 For connection cable, use the grade H07RN-F or H05RN-F materials.
 Screws on terminal block must not be unscrewed with the torque less than 12 kgf•cm.
 Since it has the external power supply, refer to the outdoor unit installation manual for MAIN POWER.
When installing the indoor unit in a computer room, use the
double shielded(Tape aluminum / polyester braid + copper)
cable of FROHH2R type.
Terminal Block SPEC (Indoor)
COMMUNICATION : M4 SCREW
9.5
8.4
10
8.4
9.5
10
AC POWER : M4 SCREW
19
ENGLISH
•Always remember to connect the refrigerant pipes before performing the electric connections.
When disconnecting the system, always disconnect the electric cables before disconnecting the refrigerant pipes.
•Always remember to connect the air conditioner to the grounding system before performing
the electric connections.
Adjusting air flow
AA
E. S. P(External Static Pressure) setting for phase control motor
With its phase control motor, you can adjust the indoor unit fan speed depending on the installation condition.
If the external static pressure is high so that the duct becomes longer or if the external static pressure is low so that
the duct becomes shorter, adjust the fan speed by referring the following table.
Static Pressure
(mmAq)
0
2
2.5
4
NS071LDXEA
011037
-156175
-274750
-370010
-
011037
-1563F7
-274750
-370010
011037
-1163FB
-274750
-370010
-
NS071SDXEA
011017
-1163E7274750
-370010
011037
-11613A274750
-370010
-
011037
-11618C274750
-370010
011047
-116203
-274750
-370010
NS090SDXEA
011044
-1560D3
-275A64
-350000
011044
-156265
-275A64
-350000
-
011044
-156299
-275A64
-350000
011044
-156083
-276470
-370000
011034
-15613B
NS100SSXEA
-276470
-370000
011044
-157083
NS125SDXEA
-277D8C
-370000
011044
-1560A4
-276470
-370000
011034
-1561AF
-276470
-370000
011044
-1570A4
-277D8C
-370000
011044
-1670A3
-278CA0
-370000
011034
-15613B
-275A64
-370000
011034
-15613B
-275A64
-370010
011034
-15613B
-276470
-370010
011044
-1670C4
-278CA0
-370000
011034
-1561AF
-275A64
-370000
011034
-1561AF
-275A64
-370010
011034
-1561AF
-276470
-370010
Model
NS090SSXEA
NS090SSXEX
NS100SSXEX
20
8
10
12
14
-
-
-
011047 011047
-1162FF -1163FD-274750 274750
-370010 -370010
-
-
011044
-1562FA
-275A64
-350000
011044 011044
-1562FB -1562FB
-275A64 -275A64
-350000 -350000
-
-
011044
-1560E8
-276470
-370000
011044
-156293
-276470
-370000
011044
-1570C6
-277D8C
-370000
011044
-1560F8
-276470
-370000
011044
-1562F6
-276470
-370000
011044
-1570F8
-277D8C
-370000
011044
-15621A
-276470
-370000
011044
-1562F8
-276470
-370000
011044
-15721A
-277D8C
-370000
011044
-15626C
-276470
-370000
011044
-15629E
-276470
-370000
011044
-1563C0
-276470
-370000
-
-
-
011044
-1670E6
-278CA0
-370000
011044
-156293
-275A64
-370000
011044156293275A64370010
011044156293276470370010
011044
-167208
-278CA0
-370000
011044
-1562F6
-275A64
-370000
011044
-1562F6
-275A64
-370010
011044
-1562F6
-276470
-370010
011044 011044 011044
-16722A -16728C -1672FE
-278CA0 -278CA0 -278CA0
-370000 -370000 -370000
011044
-1562F8
-275A64
-370000
011044
-1562F8
-275A64
-370010
011044
-1562F8
-276470
-370010
Option code for indoor unit
NS100SDXEA
NS140SDXEA
6
-
-
-
-
-
-
-
-
011044 011044 011044
-15726C -15729E -1573C0
-277D8C -277D8C -277D8C
-370000 -370000 -370000
011044
-1673F0
-278CA0
-370000
-
-
-
0
Model
NS035LDXEA
NS052LDXEA
NS052SDXEA
2.5
4
5
8
-
-
-
-
011034
-196106
-27343C
-370010
011034
-19630D
-27343C
-370010
ENGLISH
Static Pressure
(mmAq)
Option code for indoor unit
011037
-136153
-272328
-370010
011014
-156360
-27343C
-370010
011014
-19625E
-27343C
-370010
011037
-1361DB
-272328
-370010
011014
-1563E6
-27343C
-370010
011014
-1963A2
-27343C
-370010
011047
-136220
-272328
-370010
011034
-15616C
-27343C
-370010
-
•
represents E. S. P(External Static Pressure) range of factory setting.
You don’t have to adjust the fan speed separately if the external static pressure of the installation place is in
. When it is out of
, input the appropriate option code.
• If you input the inappropriate option code, error may occur or the air conditioner is out of order. The
option code must be inputted correctly by the installation specialist or service agent.
21
Setting
the indoor unit option code
AA
 Setting the option code with wireless remocon is availble if receiver kit is installed. Please use the proper wireless
remocon such as MR-DH00 which set 24 digit option code. Following is the instruction of setting option code with wired
remocon(WMR-WH02).
In order to set the indoor unit option code using the wired remote controller, hold down the
buttons at the same time for 5 seconds.
and
1 The menu will display .
Press the
button to enter the indoor unit option code
mode.
• The first digit represents the page number and the remaining five
digits are option codes.
2 Press the
button to change the page. You can change the
page from 0 to 3.
Page No.
3 Press the
code in order.
buttons and the
button to set the option
• The option code which is currently setting will flicker.
Option code
4 Press the
button to save the changed setting.
You will move to the menu selection display.
• Press the
button anytime during setup to exit without setting.
•O
ption code will not be applied if you don’t press the
button.
• S etting indoor unit option code is only possible in Master wired remote controller.
You can only check the indoor unit option code in Slave wired remote controller.
• Setting indoor unit option code is possible when one indoor unit is connected. If more than 2 indoor
units are connected, you can only check the Master indoor unit option code.
22
Setting
an indoor unit address and installation option
AA
ENGLISH
Set the indoor unit address and installation option with remote controller option. Set the each option separately since
you cannot set the ADDRESS setting and indoor unit installation setting option at the same time.You need to set twice
when setting indoor unit address and installation option.
Setting an indoor unit address
In order to check and set the indoor unit Main/Group Address using the wired remote controller, hold
down the
and
buttons at the same time for 5 seconds.
1
2
The menu will display
.
Press the
button and the menu will display .
Press the
button.
The main address (decimal notation) and group address (hexadecimal notation) of currently set indoor unit will be displayed.
Menu No.
3
Press the
buttons and the
indoor unit Main/Group Address.
4
Press the
button to set the
button.
Wired remote controller sends data to an indoor unit.
5
Press the
button to exit.
Checking the
Indoor unit
main address
Setting the
Indoor unit
main address
Indoor unit
RMC address
You will move to the menu selection display.
• Press the
button anytime during setup to exit without setting.
• Setting main/group address of an indoor unit is available only
with a master wired remote controller.
23
Setting
an indoor unit address and installation option
AA
Setting an indoor unit installation option
In order to check and set the indoor unit DIP option code using the wired remote controller, hold
and
buttons at the same time for 5 seconds.
down the
1 The menu will display
Press the
2 Press the
.
button until
is displayed.
button.
The current DIP option code set in an indoor unit will be
displayed.
3 Press
button and change the page number.
The total option codes are 24digits.you can set six digits at a
time and it is distinguished by page number(0,1,2,3).
24
Page number
DIP OPTION CODE
Option No. : 02XXXX-1XXXXX-2XXXXX-3XXXXX
Option
SEG1
Indication
and Details
PAGE
SEG4
Use of external
temperature
sensor
MODE
Indication Details Indication Details
0
SEG3
RESERVED
0
1
Option
Explanation
SEG7
SEG8
SEG9
PAGE
Use of drain pump
HOT COIL
Indication Details Indication Details Indication Details
0
Disuse
0
Disuse
Indication
1
Use
1
Use
and Details
1
Use +
2
3minute
delay
Option
SEG13
SEG14
SEG15
Use of external Setting the output of
Explanation
PAGE
control
external control
Indication Details Indication Details Indication Details
Thermo
Disuse
0
0
on
Indication
ON/OFF
and Details
2
1
Control
Operation
1
on
OFF
2
Control
Option
SEG19
SEG20
SEG21
Individual control
Explanation
PAGE
of a remote
controller
Indication Details Indication Details
RESERVED
0 or 1 Indoor 1
Indication
Indoor 2
2
and Details
3
Indoor 3
3
Indoor 4
4
buttons and the
Indoor unit DIP option code.
5 Press the
Disuse
Use
SEG10
RESERVED
SEG6
Use of central
control
Indication Details Indication
2
4 Press the
SEG5
0
1
RESERVED
Details
Disuse
Use
SEG11
RESERVED
SEG12
Master / Slave
Indication Details
0
slave
1
master
-
SEG16
SEG17
Buzzer control
Indication
RESERVED
ENGLISH
Explanation
SEG2
0
1
Details
Use of
buzzer
Non
use of
buzzer
-
SEG18
Number of hours using
filter
Indication
Details
2
1000 Hour
6
2000 Hour
SEG22
SEG23
SEG24
RESERVED
RESERVED
RESERVED
button to set the
button.
Wired remote controller sends data to an indoor unit.
6 Press the
button to exit.
You will move to the menu selection display.
• Press the
button anytime during setup to exit without setting.
• Setting an indoor unit DIP option code is available only with a master wired remote controller.
• Setting an indoor unit DIP option code is available when there is one on one connection between a
wired remote controller and an indoor unit.
• Indoor unit DIP option code will not be applied if you don’t press the
button.
25
Troubleshooting
AA
 If an error occurs during the operation, one or more LED flickers and the operation is stopped except the LED.
 If you re-operate the air conditioner, it operates normally at first, then detect an error again.
LED Display on the receiver & display unit
Indicators
Concealed Type
Abnormal conditions
Green
Remarks
Red
Standard Type
Power reset
X
Error of temperature sensor
in the indoor unit (Open/Short)
X
Error of heat exchanger sensor
in the indoor unit
X
X
X
X
X
X
X
X
X
Error of the outdoor temperature sensor
Error of the condensor temperature sensor
X
X
X
Error of the discharge temperature sensor
1. No communication for 2 minutes
between indoor units
(Communication error for more than 2 minutes)
2. Indoor unit receiving the
communication error from outdoor unit
3. Outdoor unit tracking 3 minutes error
4. When sending the communication
error from the outdoor unit, the
mismatching of the communication numbers and installed numbers after completion of tracking.
(Communication error for more than 2 minutes)
 On
Flickering
X
X
X
X Off
 If you turn off the air conditioner when the LED is flickering, the LED is also turned off.
26
1. Indoor unit error
(Display is unrelated
with operation)
2. Outdoor unit error
(Display is unrelated
with operation)
LED Display on the receiver & display unit
ENGLISH
Indicators
Concealed Type
Abnormal conditions
Green
Remarks
Red
Standard Type
Communication error between indoor units
X
X
X
1. Error of electronic expansion valve close
2. Error of electronic expansion valve open
3. 2’nd detection of high temperature cond
4. 2’nd detection of high temperature
discharge
X
X
Detection of the float switch
X
X
Error of setting option switches for optional
accessories
X
X
5. Error of reverse phase
6. Compressor down due to 6th detection
of freezing
EEPROM error
X
X
X
X
EEPROM option error
 On
Flickering
X Off
 If you turn off the air conditioner when the LED is flickering, the LED is also turned off.
27
Troubleshooting
AA
Wired remote control
If an error occurs,
is displayed on the wired remote control.
If you would like to see an error code, press the Test button.
Display
Explanation
Remark
Indoor unit Communication Error
Indoor/Outdoor unit Communication Time Out Error
60 Packet Over data
Indoor unit is not connected
Communication Error
Communication Error between Outdoor Main and Inverter Micom
(Occurred after 1 minute detection in Main and Inverter)
Indoor Temp. Sensor (Open/Short Error)
Indoor Unit Eva in Sensor (Open/Short Error)
Indoor Sensor Error
Indoor Unit Eva in Sensor Separation
Outdoor Temp. Sensor Error (Open/Short Error)
COND Temp. Sensor Error (Open/Short Error)
Inverter Compressor Discharge Temp. sensor Error
(Open/Short Error)
Outdoor Sensor Error
Power cable miss connection error
Indoor Float S/W 2nd Detection
Outdoor unit - indoor unit communication wire miss connection
(Connected to Power terminal)
Outdoor unit refrigerant Full leakage (Gas leak)
Self Diagnosys Error
Outdoor Fan 1 Error
Outdoor Fan 2 Error
Discharge over temperature
[Inverter] Compressor starting error
Primary Current Over Trip error
[Inverter] DC PEAK error(O.C)
[Inverter] Compressor Rotation error
[Inverter] Current Sensor error
Outdoor Unit Protection
Control Error
[Inverter] DC LINK Sensor error
[Inverter] EEPROM Read/Write Error
[Inverter] Heatsink temperature over Error
Outdoor unit Capacity Setup option error
Communication error between Indoor unit and wired remote control
Communication error between Master and Slave wired remote control
COM1/COM2 Cross-installed error
Error of setting option for wired remote control COM2
28
Wired Remote Control Error
Memo
ENGLISH
29
"EEE Yönetmeliğine Uygundur"
"This EEE is compliant with RoHS"
Duct Type Series
NSLDXEA
NSSDXE
NSSSXE
Air Conditioner
installation manual
This manual is made with 100% recycled paper.
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E S F I P D G DB98-32737A-1