Samsung AE071MNMPEH User manual

Air conditioner
Installation manual
AE  MNLDEH / AE  MNMPEH
•Thank you for purchasing this Samsung air conditioner.
•Before operating this unit, please read this manual carefully and retain it for future
reference.

2
English
Contents
Safety Information 3
Installation Procedure 5
Step 1 Checking and preparing accessories
Step 2 Choosing the installation location
Step 3 Optional: Insulating the body of the indoor unit
Step 4 Installing the indoor unit
Step 5 Purging inert gas from the indoor unit
Step 6 Cutting or flaring the pipes
Step 7 Connecting the assembly pipes to the refrigerant pipes
Step 8 Performing the gas leak test
Step 9 Insulating the refrigerant pipes
Step 10 Installing the drain hose and drain pipe
Step 11 Performing the drainage test
Step 12 Connecting the power and communication cables
Step 13 Optional: Extending the power cable
Step 14 Setting an indoor unit address and installation option
Step 15 External Static Pressure (ESP) setting for phase control motor
Step 16 Setting temperature control of discharge air
Step 17 Performing the final check
Step 18 Providing information for user
Appendix 38
Troubleshooting

3
English
Safety Information
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.
• 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
WARNING
• 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 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
authorised centres or returned to the retailer so that
it can be disposed of correctly and safely.
Safety Information
Safety Information

4
Contents
English
Safety Information
Installing the unit
WARNING
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.
• 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
WARNING
• 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.
• Be sure not to perform power cable modification,
extension wiring, and multiple wire connection.
– It may cause electric shock or fire due to poor
connection, poor insulation, or current limit override.
– When extension wiring is required due to power line
damage, refer to "Step 13 Optional: Extending the
power cable" in the installation manual.

5
Installation Procedure
English
CAUTION
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 sulphuric 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 fibre or flammable dust.
• The place where thinner or gasoline is handled. Gas
may leak and it may cause fire.
Installation Procedure
Installation Procedure
Step 1 Checking and preparing
accessories
The following accessories are supplied with the indoor
unit. The type and quantity may differ, depending on the
specifications.
User manual (1) Installation manual (1)
Clamp hose (1) Flexible hose (1)
Insulation drain (1) Thermal insulation
sponge A (1)
Cable-tie (8)
Thermal insulation
sponge B (1)
Rubber (8) Thermal insulation
sponge C (1)

6
Installation Procedure
Installation Procedure
English
Step 2 Choosing the installation
location
General requirements for installation location
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
Avoid installing the air conditioner in a location with the
following conditions:
• 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)
Space requirements for installation
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 0.5m : Only "B" [Inspection
for PBA] is applied.
b Height is less than 0.5m : Both "A"&"B" are
applied.
c "A"&"B" are inspection holes .
Unit Depth(D)
"A"=W+100mm "B"=500mm
Unit Width(W)
20mm or more
20mm or more
• You must have 20 mm 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 2.2~2.5 m from the ground, if the unit has a
duct with a well defined lenght (300 mm 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 10 mm of polyethylene foam or other insulation
with similar material on the body of the indoor unit.

7
Installation Procedure
English
Indoor unit dimensions
AE022MNLDEH, AE028MNLDEH, AE036MNLDEH (Unit: mm)
600
700
800
500
Inspection hole
738.4 (Suspension position)
477 (Suspension position)
18-Ø3.2 hole
(Air around)
660 (Air outlet duct ange)
2828
600
600(6x100)
700
5
05
06
07
Suction side
333
199
Discharge side 182
246
151.6 18
100
02
01
03 04
No. Name Description
01
Liquid pipe connection ø6.35(1/4")
02
Gas pipe connection ø9.52(3/8")
03
Drain pipe connection OD25 ID20(without drain pump)
04
Power supply connection
05
Air discharge flange
06
Air filter
07
Hook M8~M10

8
Installation Procedure
Installation Procedure
English
AE056MNLDEH (Unit: mm)
600
900
1000 500
01 02 04
03 05
11.9 3x256=768
71 100 10
938.4 Suspension position
600
477 Suspension position
8x100=800
860 Air outlet duct flange
900 22-ø3.2 Hole
28 28
All around
Discharge side Suction side
199
151.6
100
182
246
18
OD32
30.5
115.5
145.5
333
No. Name Description
01
Liquid pipe connection ø6.35(1/4")
02
Gas pipe connection ø12.70(1/2")
03
Drain pipe connection OD ø25 ID ø20
04
Drain pipe connection (Option drain pump) OD ø25 ID ø20
05
Power supply/Communication connection --
06
Power supply connection --
07
Air discharge grille flange --
08
Hook ø9.52 or M10

9
Installation Procedure
English
AE071MNMPEH (Unit: mm)
700
700(7x100)
817 (Air outlet duct ange)
850
22-ø3.2 hole
(Air around)
Inspection hole
Suction sideDischarge side
900 (Suspension position)
604 (Suspension position)
700
500850
950
185 158
28
220
180(2x90)
250
213
125
323
06
07
05
01
02
04
03
No. Name Description
01
Liquid pipe connection ø6.35(1/4")
02
Gas pipe connection
 035  : ø9.52(3/8");  052  /  060  : ø12.70(1/2")
 071  : ø15.88(5/8")
03
Drain pipe connection OD25 ID20(without drain pump)
04
Power supply connection
05
Air discharge flange
06
Air filter
07
Hook M8~M10

10
Installation Procedure
Installation Procedure
English
AE090MNMPEH (Unit: mm)
700
604
30-ø3.2 hole
(Air around)
1100(11x100)
1167 (Air outlet duct ange)
1200
1250 (Suspension position)
700
1200 500
1300
Suction sideDischarge side
220
180(2x90)
250
213
125
323
06
07
05
01
02
04
03
185 158
28
Inspection hole
No. Name Description
01
Liquid pipe connection ø9.52(3/8")
02
Gas pipe connection ø15.88(5/8")
03
Drain pipe connection OD25 ID20(without drain pump)
04
Power supply connection
05
Air discharge flange
06
Air filter
07
Hook M8~M10

11
Installation Procedure
English
Step 3 Optional: Insulating the body
of the indoor unit
A
D
B
C
Thickness: more than 10mm
Indoor
Unit
AE022MNLDEH
AE028MNLDEH
AE036MNLDEH
AE056MNLDEH
700 X 600 X 199 900 X 600 X 199
A700 X 199 900 X 199
B700 X 199 900 X 199
C600 X 199 600 X 199
D600 X 199 600 X 199
Front/
Back
Insulate the front and back side in proper size at
the same time when insulating the suction duct and
discharge duct.
(Unit: mm)
Indoor
Unit
AE071MNMPEH AE090MNMPEH
850 X 700 X 250 1200 X 700 X 250
A850 X 250 1200 X 250
B850 X 250 1200 X 250
C700 X 250 700 X 250
D700 X 250 700 X 250
Front/
Back
Insulate the front and back side in proper size at
the same time when insulating the suction duct and
discharge duct.
(Unit: mm)
NOTE
• 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.
Step 4 Installing the indoor unit
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.
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.
2 Insert bolt anchors. Use existing ceiling supports or
construct a suitable support as shown in figure.
Concrete
Hole in anchor
Hole in plug
Suspension bolt (M8) - eld supply
Insert
3 Install the suspension bolts depending on the ceiling type.

12
Installation Procedure
Installation Procedure
English
Ceiling support
CAUTION
• 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 Screw eight nuts to the suspension bolts making space
for hanging the indoor unit.
NOTE
• You must install all the suspension rods.
5 Hang the indoor unit to the suspension bolts between
two nuts.
1
2
2
CAUTION
• 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.
CAUTION
• 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.
When the drain hose is installed to the right.
Drain hose port
3mm
• When installing the indoor unit, make sure it is not
tilted toward front or b ack side.
CAUTION
• Noise will increase 3~6 dB(A) when the air flow
enters from the bottom side (Only for Slim Duct Type
product).
Air Flow

13
Installation Procedure
English
Step 5 Purging inert gas from the
indoor unit
From factory the unit is supplied and set with a pre-
charge of nitrogen gas. (inert gas) Therefore, all inert gas
must be purged before connecting the assembly piping.
Unscrew the pinch pipe at the end of each refrigerant pipe.
Result : All inert gas escapes from the indoor unit.
Gas
refrigerant port
Liquid
refrigerant port
NOTE
• The designs and shape are subject to change
according to the model.
• 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.
CAUTION
• 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 hydro-sanitary 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.
Step 6 Cutting or flaring the pipes
1 Make sure that you prepared the required tools.
(pipe cutter, reamer, flaring tool and pipe holder)
2 If you want to shorten the pipe, cut it using a pipe cutter
ensuring that the cut edge remains at 90° with the side
of the pipe. There are some examples of correctly and
incorrectly cut edges below.
Pipe cutter
Pipe
Oblique
90° Rough Burr
3 To prevent a gas leak, remove all burrs at the cut edge of
the pipe using a reamer.
4 Carry out flaring work using flaring tool as shown below.
<Flaring tool>
Clutch type
Die
Copper pipe Flare nut Copper pipe
York
Die
A
Wing nut type
(Unit: mm)
Outer
diameter
A
Flare tool for
R410A clutch
type
Conventional flare tool
Clutch type Wing nut
type
6.35 0~0.5 1.0~1.5 1.5~2.0
9.52 0~0.5 1.0~1.5 1.5~2.0
12.70 0~0.5 1.0~1.5 1.5~2.0
15.88 0~0.5 1.0~1.5 1.5~2.0

14
Installation Procedure
Installation Procedure
English
5 Check if you flared the pipe correctly. There are some
examples of incorrectly flared pipes below.
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.
R 0.4~0.8
90°±2°
45°±2°
LD
Outer
diameter (D,
mm)
Connection Torque Flare dimension
(L, mm)
kgf•cm N•m
6.35 140~180 14~18 8.70~9.10
9.52 350~430 34~42 12.80~13.20
2.70 500~620 49~61 16.20~16.60
15.88 690~830 68~82 19.30~19.70
CAUTION
• In case of needing brazing, you must work with
nitrogen gas blowing.
Step 7 Connecting the assembly
pipes to the refrigerant pipes
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.
Torque wrench
Flare nut Union
Spanner
Refrigerant oil
Outer diameter (D) Torque (N•m)
Ø6.35 mm 14 ~ 18
Ø9.52 mm 34 ~ 42
Ø12.70 mm 49 ~ 61
Ø15.88 mm 68 ~ 82
Ø19.05 mm 100 ~ 120
NOTE
• If the pipes must be shortened refer to page 13,
Step 6 Cutting or flaring the pipes
2 Be sure to 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.

15
Installation Procedure
English
Gas
refrigerant port
Drain hose
connection port
Liquid
refrigerant port
NOTE
• The designs and shape are subject to change
according to the model.
Step 8 Performing the gas leak test
To identify potential gas leaks on the indoor unit, inspect
the connection area of each refrigerant pipe using a leak
detector for R-410A.
Before recreating the vacuum and recirculating the
refrigerant gas, pressurize the whole system with
nitrogen (using a cylinder with a pressure reducer) at a
pressure above 4 MPa in order to immediately detect
leaks on the refrigerant fittings.
Made vacuum for 15 minutes and pressurizing system
with nitrogen.
Insulator
Gas side
Liquid side
Step 9 Insulating the refrigerant pipes
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 Acrylonitrile
Butadien Rubber separately around each refrigerant pipe.
No gap
NBR
NOTE
• Always make the seam of pipes face upwards.

16
Installation Procedure
Installation Procedure
English
2 Wind insulating tape around the pipes and drain hose
avoiding compressing the insulation too much.
Indoor unit
Insulation cover pipe
Insulation pipe
Be sure to overlap the insulation.
CAUTION
• Be sure to wrap insulation tightly without any gaps.
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.
CAUTION
• Make sure that all refrigerant connection must be
accessible for easy maintenance and detachment.
• 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.
• Add the additional insulation if the insulation plate
gets thinner.
a x 3
Hanger
Additional insulation
aRefrigerant pipe
insulation
5 Select the insulation of the refrigerant pipe.
• Insulate the gas side and liquid side pipe, noting the
insulation thickness that must differ according to the
pipe size.
• Standard: Less than an indoor temperature of 30°C,
with humidity at 85%. If installing in a high humidity
environment, use one grade thicker insulator by
referring to the table below. If installing in an
unfavourable environment, use thicker one.
• The heat-resistance temperature of the insulator must
be more than 120°C.
Pipe Pipe size
Insulation type
(heating/cooling)
Remarks
Standard
(Less than
30°C, 85%)
High humidity
(Over 30°C,
85%)
EPDM, NBR
Liquid
pipe
Ø6.35 to
Ø9.52 9t 9t
The internal
temperature
is higher than
120°C.
Ø12.7 to
Ø19.05 13t 13t
Gas
pipe
Ø6.35 13t 19t
Ø9.52
19t 25t
Ø12.70
Ø15.88
Ø19.05
• When installing insulation in the places and
conditions below, use the same insulation that is used
for high humidity conditions.
<Geological condition>
High humidity locations such as shorelines, hot springs,
lake or riversides, and ridges (when part of the building is
covered by earth and sand)
<Operation purpose condition>
Restaurant ceiling, sauna, swimming pool etc.
<Building construction condition>
Ceilings frequently exposed to moisture and cooling are
not covered. For example, pipes installed at a corridor of a
dormitory and studio or near an exit that opens and closes
frequently.
Places (where the pipes are installed) that are highly humid
due to a lack of ventilation.

17
Installation Procedure
English
Refrigerant pipe before EEV kit and MCU or without EEV kit and MCU
• You can contact the gas side and liquid side pipes
but the pipes should not be pressed.
• When contacting the gas side and gas side pipe, use
1 grade thicker insulator.
Refrigerant pipe after EEV kit and MCU
• Install the gas side and liquid side pipes, leave
10mm of space.
• When contacting the gas side and liquid side pipe,
use 1 grade thicker insulator.
Gas pipe
Liquid pipe
Insulation
Insulation
Gas pipe
10mm
Liquid pipe
10mm 10mm
Step 10 Installing the drain hose and
drain pipe
1 Push the supplied drain hose as far as possible over the
drain socket.
2 Tighten the metal clamp as shown in the picture.
3 Wrap the supplied large sealing pad over the metal
clamp and drain hose to insulate and fix it with clamps.
4 Insulate the complete drain piping inside the building
(field supply).
If the drain hose cannot be sufficiently set on a slope, fit
the hose with drain raising piping (field supply).
5 Push the drain hose up to insulation when connecting
the drain hose to drain socket.
Metal clamp Drain socket
Drain hose
Be sure to bond the drain
hose and the main pipe.
Drain pipe
Large seailng pad
Drain hose
PVC Tube Joint
+ VP25 (OD: 32 mm, ID: 25 mm)
Drain pipe

18
Installation Procedure
Installation Procedure
English
Drain pipe 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
Horizontal drainpipe
more than 1/100 slope
Ceiling
Hanger
Flexible hose
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.
NOTE
• 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.
1~1.5m
20mm
or more
200mm
or more
Hanger
Within
300~550mm
Air vent
300mm or less
Flexible hose Horizontal drainpipe
more than 1/100 slope
Ceiling
Centralized Drainage
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.
100mm or more
Ceiling Horizontal drainpipe
more than 1/100 slope
With the drain pump
1 Install main air vent at the front of the farthest indoor
unit from the main drain when installed indoor units are
more than 3.
2 You may need to install individual air vent to prevent
water flow back at the top of each indoor unit drainpipe.
Hanger
Main drainpipe
Individual
air vent
Main air vent
Centralized horizontal drainpipe
(more than 1/100 slope)
550mm
or less
1~1.5m
Step 11 Performing the drainage test
Prepare a little water about 2 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.

19
Installation Procedure
English
Step 12 Connecting the power and
communication cables
1 Before wiring work, you must turn off all power source.
2 Indoor unit power should be supplied through the
breaker( ELCB or MCCB+ELB ) separated by the outdoor
power.
• ELCB:Earth Leakage Circuit Breaker
• MCCB:Molded Case Circuit Breaker
• ELB:Earth Leakage Breaker
3 The power cable should be used only copper wires.
4 Connect the power cable{1(L), 2(N)} among the units
within maximum length and communication cable(F1, F2)
each.
5 Connect F3, F4(for communication) wires when installing the wired remote control.
N L
N L N L N L
ELCB
MCCB+
ELB
V1 V2
Outdoor Unit
Indoor Unit 1 Indoor Unit 2 Indoor Unit 3
Indoor Unit 4 Indoor Unit 5 Indoor Unit 6
EEV kit
220-240V~or
Wired Remote
Control
∙ Ceiling, wall-mounted indoor unit.
• ELCB : Essential Installation
• The EEV Kit is optional component.
WARNING
• Power off before connecting any wires;Indoor PBA will be damaged while V1,V2,F3,F4 short each other.
• You must connect the earth cable. If earthing is not complete, electric shock or fire may occur.

20
Installation Procedure
Installation Procedure
English
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.
nCoef×35.6×Lk×ik)
<
10% of input
voltage[V]
– coef: 1.55
– Lk: Distance among each indoor unit[m],
Ak: Power cable specification[mm]
ik: Running current of each unit[A]
∑ ( 1000×Ak
k=1
Ring terminal selection
t
RB
2
d2
d1
D
B
L
F E
Silver solder
Norminal
dimensions
for cable
(mm2)
Norminal
dimensions
for screw
(mm)
B C d1 E F L d2 t
Standard
dimension
(mm)
Allowance
(mm)
Standard
dimension
(mm)
Allowance
(mm)
Standard
dimension
(mm)
Allowance
(mm) Min. Min. Max.
Standard
dimension
(mm)
Allowance
(mm) Min.
1.5 46.6 ±0.2 3.4 +0.3
-0.2 1.7 ±0.2 4.1 616 4.3 +0.2 00.7
4 8
2.5 46.6 ±0.2 4.2 +0.3
-0.2 2.3 ±0.2 6 6 17.5 4.3 +0.2 00.8
48.5
4 4 9.5 ±0.2 5.6 +0.3
-0.2 3.4 ±0.2 6 5 20 4.3 +0.2 00.9
Specification of electronic wire
Power supply MCCB ELB or ELCB Power cable Earth cable Communication
cable
Max : 242V / Min
: 198V XA XA, 30mmA, 0.1 s 2.5mm2.5mm0.75~1.5mm
• Refer to the unit nameplate for rating current.
• Decide the capacity of ELCB(or MCCB+ELB) by below formula.
• Power supply cords of parts of appliances for outdoor use shall not be lighter than polychloroprene sheathed
flexible cord. (Code designation IEC:60245 IEC 57 / CENELEC: H05RN-F or IEC:60245 IEC 66 / CENELEC: H07RN-F )