Samsung AJ012NB1DCH/AZ Installation guide

Air conditioner
Installation manual
â७७७Ę9ߣUA²
• Thank you for purchasing this Samsung air conditioner.
• Before operating this unit, please read this manual carefully and retain it for future
reference.
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 and 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: Wiring Wired Remote Control
Step 14 Optional: Extending the power cable
Appendix
Troubleshooting
2 English
19
Safety Information
WARNING
• Hazards or unsafe practices that may result in severe
personal injury or death.
CAUTION
• 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.
• 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 centres or returned to the retailer so that it
can be disposed of correctly and safely.
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.
English 3
Safety Information
• Hazards or unsafe practices that may result in minor
personal injury or property damage.
• Do not use the units if damaged. If problems occur, switch
the unit off and disconnect it from the power supply.
Safety Information
• 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.
Safety Information
• Our units must be installed in compliance with the
space specifications presented in the installation
manual in order to ensure accessibility from both sides
and allow repairs or maintenance operations to be
carried out.
The unit’s components must be accessible and easy to
disassemble without endangering people and objects.
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.
• 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 14 Optional: Extending
the power cable in the installation manual.
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.
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.
• 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.
• Always verify that a suitable grounding connection is
available.
• If you use the wireless remote control, reception error
may occur due to the ballast of the lighting apparatus.
• 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.
Do not install the air conditioner in following places.
• Always verify that the cut-off and protection switches
are suitably dimensioned.
• The place where corrosive gas such as sulphuric acid
gas generates from the vent pipe or air outlet.
• 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.
• The copper pipe or connection pipe may corrode and
refrigerant may leak.
• 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.
4 English
• 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 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
Step 1 Checking and preparing
accessories
Step 2 Choosing the installation
location
The following accessories are supplied with the indoor
unit. The type and quantity may differ, depending on the
specifications.
Installation location requirements
Installation template
Dimension gauge
• 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.
Insulation drain
Flexible hose
• Before installing the indoor unit, be sure to check
whether the chosen location is well-drained.
• The indoor unit must be installed such that it is beyond
public access and is not touchable by users.
• Rigid wall without vibration.
• Where it is not exposed to direct sunshine.
Rubber
Installation manual
• Where the air filter can be removed and cleaned easily.
• As a rule, the unit cannot be installed at a height of
less that 2.5m.
Cable-tie
• 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.
English 5
Installation Procedure
CAUTION
Installation Procedure
Indoor unit dimensions
(Unit: mm)
1150 (Ceiling opening dimension)
440
(Ceiling opening dimension)
249
(Space of suspension bolts)
1036 (Space of suspension bolts)
410
145
34
179
Installation Procedure
80
130
970
Ceiling
50
AJ009NB1DCH
AJ012NB1DCH
Model
Chassis
Net dimension (W × D × H)
Medium
mm
Liquid pipe connection
ø6.35 (1/4")
Gas pipe connection
Drain hose connection
6 English
970 X 410 X 135
ø9.52 (3/8")
mm
VP20 (outer diameter : 26, inner diameter : 20)
46
500
77
22
1198
Spacing requirements
Step 3 Optional: Insulating the body of
the indoor unit
A
If you install a cassette type indoor unit on the ceiling
when temperature is over 27°C and humidity is over
80%, you must apply an extra 10 mm thick polyethylene
insulation or a similar type of insulation to the body of the
indoor unit.
A
A
A: 1500 mm or more
A
Cut away the part where pipes are pulled out for the
insulating work.
Insulate the end of the pipe and some curved area by
using separate insulator.
Step 4 Installing the indoor unit
CAUTION
1 Place the pattern sheet on the ceiling at the spot
where you want to install the indoor unit.
Installation Procedure
• The indoor unit must be installed according to the
specified distances in order to permit accessibility
from each side, to guarantee correct operation,
maintenance, and repair of the unit.
The components of the indoor unit must be reachable
and removable under safe conditions for people and
the unit.
When deciding on the location of the air conditioner the
following restrictions must be taken into account.
• Do not hold the discharge while carrying the indoor
unit to avoid the possibility of breakage.
• You must hold the hanger plate on the corner and
carry 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, be sure
to 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
Insert
Suspension bolt (ø9.52 or M10)
English 7
Installation Procedure
3 Install the suspension bolts, depending on the ceiling
type.
6 Check the level of the indoor unit by using a leveler.
• A tilt of the indoor unit may cause malfunction of a
built-in float switch and water leaks.
Ceiling support
Level
7 Adjust the unit to the appropriate position, taking into
account the installation area for the front panel.
• 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 and washers to the suspension bolts,
making space for hanging the indoor unit.
CAUTION
• Fix the indoor unit securely after adjusting the level
of the unit by using a leveller.
• Remove the pattern sheet and install the front
panel.
Air outlet side
• It is important to leave sufficient space in the false
ceiling to allow access for maintenance or repairs to
the drainage pipe connection, the refrigerant pipe
connection, or to remove the unit if necessary.
5 Hang the indoor unit to the suspension bolts between
two nuts. Screw the nuts to suspend the unit. Cut a
pad stopper and place it on the bracket at this time.
2
1
2
Air inlet side
Indoor unit
Jig
• You must install all of the suspension rods.
8 English
• Adjust the space between the ceiling and the
indoor unit by using a dimension gauge.
10
Installation Procedure
• If the length of the suspension bolt is more than 1.5 m,
you are required to prevent vibration.
• Place the pattern sheet on the indoor unit.
10
CAUTION
• Make sure 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.
Ceiling
Step 5 Purging inert gas from the
indoor unit
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.
D
A
90° ±2°
Unscrew the pinch pipe at the end of each refrigerant
pipe.
45° ±
2°
The indoor unit comes with nitrogen gas (inert gas)
charged at the factory. Therefore, all inert gas must be
purged before connecting the assembly piping.
R 0.4 to 0.8 mm
D
L
Insulator
Liquid side
Gas side
NOTE
Outer Diameter (D)
Depth (A)
Flare dimension (L)
Ø6.35 mm
1.3 mm
8.7 to 9.1 mm
Ø9.52 mm
1.8 mm
12.8 to 13.2 mm
Ø12.70 mm
2.0 mm
16.2 to 16.6 mm
Ø15.88 mm
2.2 mm
19.3 to 19.7 mm
5 Check that the flaring is correct, referring to the
illustrations below for examples of incorrect flaring.
Step 6 Cutting and 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 them with a pipe
cutter, ensuring that the cut edge remains at a 90°
angle to the side of the pipe. Refer to the illustrations
below for examples of edges cut correctly and
incorrectly.
Correct
Inclined
Damaged
Surface
Cracked
Uneven
Thickness
Pipe cutter
Pipe
Oblique
Rough
Burr
English 9
Installation Procedure
• 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.
Flare
Flare
Pipe
Installation Procedure
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 and 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.
NOTE
• If the pipes must be shortened, see Step 6 Cutting
and flaring the pipes on page 9.
2 Be sure to use an insulator thick enough to cover the
refrigerant tube to protect the condensate water on
the outside of the pipe falling onto the floor and to
improve the efficiency of the unit.
3 Cut off any excess foam insulation.
4 Make sure that there are no cracks or waves on the
bent area.
5 It would be necessary to double the insulation
thickness (10 mm or more) to prevent condensation
even on the insulator when if the installed area is
warm and humid.
1
6 Do not use joints or extensions for the pipes
connecting the indoor and outdoor units. The only
permitted connections are those for which the units
are designed.
2
Installation Procedure
CAUTION
Spanner
3
Union
3
Torque
wrench
Flare nut
Outer Diameter (mm)
ƟͱθαЇʪ࣑Ęࡻ͔࣒
Ø6.35
14 to 18
Ø9.52
34 to 42
Ø12.70
49 to 61
Ø15.88
68 to 82
(1 Nࡻm = 10 kgfࡻcm)
10 English
• 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 127351), suitable for operating pressures of at least 4.2 MPa
and for a burst pressure of at least 20.7 MPa. 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.
• If the pipes require brazing, make sure that oxygen
free nitrogen (OFN) is flowing through the system.
• Nitrogen blowing pressure range is 0.02 to 0.05 MPa.
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 4.1 MPa in order to immediately detect
leaks on the refrigerant fittings.
4 The pipes and electrical cables connecting the indoor
unit with the outdoor unit must be fixed to the wall
with suitable ducts.
Insulation cover pipe
Insulation pipe
Indoor unit
Made vacuum for 15 minutes and pressurizing system
with nitrogen.
Be sure to overlap the insulation.
CAUTION
Insulator
• Make sure that all refrigerant connection must be
accessible for easy maintenance and detachment.
• Must fit tightly against body without any gap.
Gas side
• 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.
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.
• 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.
Hanger
Additional
insulation
No gap
a
ax3
NBR (T13.0 or thicker)
NOTE
Refrigerant pipe insulation
• Must fit tightly against body without any gap.
• All refrigerant connection must be accessible, in order
to permit either unit maintenance or removal.
• Always make the seam of pipes face upwards.
2 Wind insulating tape around the pipes and drain hose
avoiding compressing the insulation too much.
3 Finish wrapping insulating tape around the rest of the
pipes leading to the outdoor unit.
English 11
Installation Procedure
Liquid side
Installation Procedure
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.
Insulation Type
(Heating/Cooling)
Pipe
Pipe size
Standard
[30°C,
85%]
High
humidity
[30°C, over
85%]
Remarks
Installation Procedure
EPDM, NBR
Liquid
pipe
Gas
pipe
Ø6.35 to
Ø9.52
9t
9t
Ø12.7 to
Ø50.80
13t
13t
Ø6.35
13t
19t
Ø9.52 to
Ø25.40
Ø28.58 to
Ø44.45
Ø50.80
12 English
25t
19t
32t
25t
38t
Internal
temperature
is higher than
120°C
• 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.
Step 10 Installing the drain hose and
drain pipe
1 Push the supplied drain hose as near as possible over
the drain socket.
CAUTION
Check that the indoor unit is level with the ceiling by
using the leveller.
• Install air ventilation to drain condensation smoothly.
2 Tighten the metal clamp as shown in the picture.
Air ventilation
Ceiling
5 Push the drain hose up to insulation when connecting
the drain hose to drain socket.
Metal clamp
300 mm
or less 20 mm or more
Drain hose
Band joint
Drain socket
Ceiling
Drain hose
Drain pipe
Large seailng pad
1/100 or more
Be sure to bond the
drain hose and the
main pipe.
• Do not give the hose an upward gradient beyond
the connection port. This will cause water to flow
backwards when the unit is stopped, resulting in water
leaks.
Under gradient
Drain hose
PVC Tube Joint
+ VP25 (OD: 32 mm, ID: 25 mm)
Ceiling
Drain pipe
English 13
Installation Procedure
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).
• If it is necessary to increase the height of the drain
pipe, install the drain pipe straight within 300 mm
from the drain hose port. If it is raised higher than 550
mm, there may be water leaks.
300 to 550 mm
3 Wrap the supplied large sealing pad over the metal
clamp and drain hose to insulate and fix it with clamps.
Installation Procedure
• Do not apply force to the piping on the unit side when
connecting the drain hose. The hose should not be
allowed to hang loose from its connection to the unit.
Fasten the hose to a wall, frame or other support as
close to the unit as possible.
NOTE
• If a concentrated drain pipe is installed, refer to the
figure below.
Full thread bolt hanger
Support pieces
1000 to 1500 mm
Individual
air vent
1 to 1.5 m
Main air vent
(must be installed)
200 mm
or more
300 to
550 mm
1/100 or more
Ceiling
Main drain pipe
• Install horizontally.
Centralized horizontal drain pipe
(more than 1/100 slope)
• If 3 or more units are installed, install the main air vent
at the front of the farthest indoor unit from the main
drain pipe.
• To prevent water from flowing back to indoor units, install
an individual air vent at the top of each indoor unit.
– The air vents should be T or 7 shaped to prevent
dust or foreign substances from entering.
– You may not need to install air vent if the horizontal
drain pipe is in proper slope.
Be horizontal
Installation Procedure
Indoor unit
Flexible hose
Step 11 Performing the drainage test
• Max. allowable aixs gap
1 Do a leak test at the connection part of the flexible
hose and the drain pipe:
a Connect a general hose to the connection part of
the flexible hose of the indoor unit, and pour in
some water.
Indoor unit
Water leakage
check part
Max. 20 mm
• Max. allowable bending angle
Hose
Flexible hose
Indoor unit
đɇу࢏ߥߢઘ
14 English
b After pouring some water, reassemble the rubber
cap on the connection part of a flexible hose of
the indoor unit and firmly tighten it with a band to
prevent leakage.
c Check the leak test at the part where the adhesive
for the flexible hose and the drain pipe is used.
CAUTION
CAUTION
• When the float switch is not detected due to
insufficient water on the drain pan, the drain
pump will not work.
• If the power supply is directly connected to the L
and N terminals, communication error message
might appear.
• The leak test must be performed for at least 24 hours.
• After completing the drainage check, turn the unit
off and disconnect the power supply.
2 Check the condensed water drainage:
• Reassemble the control box cover.
a Pour about 2 liters of water into the indoor unit
drain pan as shown in the picture.
c Check whether the drain pump works correctly.
d Check whether the drainage is performing
correctly at the end of the drain pipe.
e Check for leakage at the drain pipe and drain pipe
connection part.
b When the electric cable connection is completed
• Turn on the indoor unit and outdoor unit.
g When the drainage check is completed and
the condensed water remains on the drain pan,
remove the water.
• Operate in the Cool mode.
CAUTION
• Only in the Cool mode, you can check the correct
operation of the drain pump.
When the electric cable connection has not been
completed
• Remove the control box cover of the indoor unit.
• Connect the power supply (208 to 230V, 60Hz) to
the L and N terminals.
• Reassemble the control box cover and turn on the
indoor unit.
English 15
Installation Procedure
f When leakage occurs, check whether the indoor
unit is level and check the drain hose connection
part, drainpipe connection part and drain pump
connection.
Installation Procedure
Step 12 Connecting the power and
communication cables
Power supply
Max/Min(V)
Indoor power cable
208 to 230V, 60Hz
±10%
0.75 to 1.5 mm², 3 wires
Communication cable
• 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.
0.75 to 1.5 mm², 2 wires
(Unit : mm)
• Always remember to connect the air conditioner to
the grounding system before performing the electric
connections. Use a crimp ring terminal at the end of
each wire.
Installation Procedure
4 Reassemble the electrical component box cover,
carefully tightening the screw.
9.0
18
Tightening torque (kgf · cm)
1 Remove the screw on the electrical component box
and remove the cover plate.
3 Route the other end of the cable to the outdoor unit
through the ceiling & the hole on the wall.
7.5
13
11
The indoor unit is powered through the outdoor unit by
means of a H07 RN-F connection cable (or a more power
model), with insulation in synthetic rubber and a jacket
in polychloroprene (neoprene), in accordance with the
requirements specified in the standard EN 60335-2-40.
2 Route the connection cord through the side of the
indoor unit and connect the cable to the terminals
refer to the figure below.
Communication: M3.5 screw
AC power: M4 screw
13.8
CAUTION
Indoor power supply
•
M3.5
8.0 to 12.0
M4
12.0 to 18.0
1 N·m = 10 kgf·cm
• 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)
• Since it has the external power supply, refer to the
outdoor unit installation manual for MAIN POWER.
1(L)
Indoor Unit
F2
F1
2(N)
Outdoor
Unit
1(L) 2(N) L
N
CAUTION
Cable
Tie
Indoor Power
16 English
Main power cable
Cable
clamp
Communication cable
• When installing the indoor unit in a computer
room or network room, use the double shielded
communication cable (tape aluminum / polyester
braid + copper) of FROHH2R type.
Step 13 Optional: Wiring Wired Remote
Control
Step 14 Optional: Extending the power
cable
Connect the power cable, which is connected with the
outdoor unit and supplied by another source,
1 Prepare the following tools.
making sure that the power cable terminal should not be
changed.
The F3 and F4 communication cable may be crossconnected, however, it is recommended that they are
connected to the corresponding F3 and F4 terminal.
Indoor Unit PCB
F4
F3
V2
V1
F2
F1
L
N
Tools
Spec
Crimping pliers
MH-14
Connection sleeve
(mm)
20xØ6.5
(HxOD)
Insulation tape
Width 19
mm
Contraction tube
(mm)
70xØ8.0
(LxOD)
Shape
2 As shown in the figure, peel off the shields from the
rubber and wire of the power cable.
Wired Remote Control
(Optional)
• Peel off 20 mm of cable shields from the preinstalled tube.
CAUTION
• For information about the power cable
specifications for indoor and outdoor units, refer to
the installation manual.
• After peeling off cable wires from the pre-installed
tube, insert a contraction tube.
Power cable
20
20
20
60
120
180
(Unit: mm)
Pre-installed tube for the power cable
20
(Unit: mm)
English 17
Installation Procedure
F1(F3)F2(F4) V1 V2
Installation Procedure
3 Insert both sides of core wire of the power cable into
the connection sleeve.
• Method 1: Push the core wire into the sleeve from
both sides.
• Method 2: Twist the wire cores together and push it
into the sleeve.
5 Wrap it with the insulation tape twice or more and
position your contraction tube in the middle of the
insulation tape.
Three or more layers of insulation are required.
Method 1
Method 2
Insulation tape
Method 1
Insulation tape
Method 2
40 mm
Connection sleeve
Connection sleeve
4 Using a crimping tool, compress the two points and
flip it over and compress another two points in the
same location.
35 mm
6 Apply heat to the contraction tube to contract it.
Contraction tube
• The compression dimension should be 8.0.
Installation Procedure
Compression
dimension
• After compressing it, pull both sides of the wire to
make sure it is firmly pressed.
Method 1
Method 2
Compress it 4 times.
5 mm
Compress it 4 times.
5 mm
7 After tube contraction work is completed, wrap it with
the insulation tape to finish.
Insulation tape
CAUTION
• Make sure that the connection parts are not exposed
to outside.
• Be sure to use insulation tape and a contraction tube
made of approved reinforced insulating materials
that have the same level of withstand voltage with
the power cable. (Comply with the local regulations on
extensions.)
WARNING
• In case of extending the electric wire, please DO NOT
use a round-shaped Pressing socket.
– Incomplete wire connections can cause electric
shock or a fire.
18 English
Appendix
Troubleshooting
Detection of errors
• If an error occurs during the operation, an 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
Indoor unit display indications
Abnormal condition
Error
code
Ice
Blue
Power reset
Error on indoor temperature sensor (Short or Open)
E121
Error on Eva-in sensor (Short or Open)
E122
Error on Eva-out sensor (Short or Open)
E123
Indoor fan error
E154
Error on outdoor temperature sensor (Short or Open)
E221
Error on cond sensor
E237
Error on discharge sensor
E251
Ǯ˵ʪ͝ϩ˵ʪθʪ̈ϑ͝ͱʀͱ͔͔Ї̈͝ʀɇϩ̈ͱ͝ɵʪϩиʪʪ͝ϩ˵ʪ̈͝ʒͱͱθॉͱЇϩʒͱͱθ
units for 2 minutes
E101
Communication error received from the outdoor unit
E102
3 miniute tracking error on outdoor unit
E202
Communication error after tracking due to unmatching number of
installed units
E201
Error due to repeated communication address
E108
Yellow
Green
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Error due to opened EEV (2nd detection)
E151
Error due to closed EEV (2ndetection)
E152
Eva in sensor is detached
E128
Eva out sensor is detached
E129
Thermal fuse error (Open)
E198
Appendix
Self diagnosis error display
English 19
Appendix
Indoor unit display indications
Abnormal condition
Error
code
COND mid sensor is detached
E241
Refrigerant leakage (2nd detection)
E554
Abnomally high temperature on Cond (2nd detection)
E450
Low pressure s/w (2nd detection)
E451
Abnomally high temperature on discharged air on outdoor unit
(2nd detection)
E416
Indoor operation stop due to unconfirmed error on outdoor unit
E559
Error due to reverse phase detection
E425
Comp stop due to freeze detection (6th detection)
E403
High pressure sensor is detached
E301
Low pressure sensor is detached
E306
Outdoor unit copression ration error
E428
Outdoor sump down_1 prevetion control
E413
Compressor down due to low pressure sensor prevention
control_1
E410
Simultaneous opening of cooling/heating MCU SOL valve
(1st detection)
E180
Simultaneous opening of cooling/heating MCU SOL valve (2nd
detection)
E181
Other outdoor unit self-diagnosis error that is not on the above list
Ice
Blue
Yellow
Green
X
X
X
-
Flowating s/w (2nd detection)
E153
X
Error of mixed operation
E161
X
EEPROM error
E162
EEPROM option error
E163
Appendix
: On,
X
X
X
: Blinking, X : Off
• If you turn off the air conditioner when the LED is flickering, the LED is also turned off.
• If you re-operate the air conditioner, it operates normally at first, then detect an error again.
• When E108 error occurs, change the address and reset the system.
Ex.) When address of the indoor unit #1 and #2 are set as 5, address of the indoor unit #1 will become 5 and indoor
unit #2 will display E108, A002.
20 English
MEMO
English 21