Samsung | AC030HCADKH/EA | Samsung AC030HCADKH/EA Installation Guide

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ACHCADKH
ACHCADNH
Air Conditioner
installation manual
This manual is made with 100 % recycled paper.
imagine the possibilities
Thank you for purchasing this Samsung product.
EN IN DB68-04679A-02
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Contents
PREPARATION
Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Preparation for outdoor unit installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Deciding on where to install the outdoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
INSTALLATION
Outdoor unit installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Connecting the cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Adding refrigerant (R-410A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Connecting up and removing air in the circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Cutting/Flaring the pipes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Performing leak tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Connecting the drain hose to the outdoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Insulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Using stop valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Interface module Installation (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Pump down Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Checking correct grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
OTHERS
Testing operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
ENGLISH-2
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PREPARATION
Safety precautions
Carefully follow the precautions listed below because they are essential to guarantee the safety of the equipment.
General information
XX 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.
01 PREPARATION
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.
XX For maximum safety, installers should always carefully read the following warnings.
XX 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.
XX 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.
XX 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.
XX 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.
XX Do not use the units if damaged. If problems occur, switch the unit off and disconnect it from the power supply.
XX 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.
XX Always remember to inspect the unit, electric connections, refrigerant tubes and protections regularly. These operations
should be performed by qualified personnel only.
XX The unit contains moving parts, which should always be kept out of the reach of children.
XX Do not attempt to repair, move, alter or reinstall the unit. If performed by unauthorized personnel, these operations may
cause electric shocks or fires.
XX Do not place containers with liquids or other objects on the unit.
XX All the materials used for the manufacture and packaging of the air conditioner are recyclable.
XX The packing material and exhaust batteries of the remote controller(optional) must be disposed of in accordance with
current laws.
XX 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.
XX Do not pull or excessively bend the power line. Do not twist or tie the power line. Do not hook the power line over a
metal object, place a heavy object on the power line, insert the power line between objects, or push the power line into
the space behind the appliance. Method of attachment of the supply code such that any replacement is intended to be
made by the manufacturer, its service agent or similar qualified person.
ENGLISH-3
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Safety precautions
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.
XX 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.)
XX After completing the installation, always carry out a functional test and provide the instructions on how to operate the air conditioner to the
user.
XX 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.
XX 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.
XX 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
XX 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.
XX Always verify that a suitable grounding connection is available.
XX 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.
XX Always verify that the cut-off and protection switches are suitably dimensioned.
XX 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.
XX 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.
XX Devices disconnected from the power supply should be completely disconnected in the condition of overvoltage
category.
ENGLISH-4
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Preparation for outdoor unit installation
The air conditioner uses R-410A refrigerant.
A Type: AC030HCADKH / AC036HCADKH / AC036HCADNH / AC042HCADKH / AC042HCADNH
(Unit : mm)
384
330
360
620
675
528
537
998
973
940
01 PREPARATION
 Heat pump
B Type: AC048HCADKH / AC048HCADNH
 Heat pump
Moving the Outdoor Unit by Wire Rope
Fasten the outdoor unit by two 8 m or longer wire ropes as shown at the figure.
To prevent from damage or scratches, insert a piece of cloth between the
outdoor unit and rope, then move the unit.
❋❋ The appearance of the unit may be different from the picture depending on
the model.
Wire rope
Plate protection
cloth
ENGLISH-5
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Deciding on where to install the outdoor unit
Outdoor Unit
ffThe outdoor unit must not be placed on its side or upside down, as the compressor lubrication oil will run into the cooling
circuit and seriously damage the unit.
ffChoose a location that is dry and sunny, but not exposed to direct sunlight or strong winds.
ffDo not block any passageways or thoroughfares.
ffChoose a location where the noise of the air conditioner when running and the discharged air do not disturb any
neighbours.
ffChoose a position that enables the pipes and cables to be easily connected to the indoor unit.
ffInstall the outdoor unit on a flat, stable surface that can support its weight and does not generate any unnecessary noise
and vibration.
ffPosition the outdoor unit so that the air flow is directed towards the open area.
ffMaintain sufficient clearance around the outdoor unit, especially from a radio, computer, stereo system, etc.
Indoor Unit
Control
Stereo
1 m or m
ore
Outdoor
Unit
1 m or more
Fuse
ore
1.5 m or m
Fuse
ore
or m e
m r mor
5
.
1
o
m
1.5
300 mm
re
or mo
1.5 m
Air Guide Duct
(This product is not
provided by Samsung)
200 mm
ffIf the outdoor unit is installed at a height, ensure that its base is firmly fixed in position.
ffMake sure that the water dripping from the drain hose runs away correctly and safely.
ffWhen you install the outdoor unit at wayside, you should install it above 2 m height or make sure that the heat from the
outdoor unit shouldn't be in direct contact with passersby. (The ground for application :The revision of regulation for
facility in building by the law of the Ministry of Construction and Transportation.
CAUTION
• You have just purchased a system air conditioner and it has been installed by your installation specialist.
• This device must be installed according to the national electrical rules.
• With an outdoor unit having net weight upper than 60kg, we suggest do not install it suspended on wall,
but considering floor standing one.
ENGLISH-6
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ffWhen installing the outdoor unit near seashore, make sure it is not directly exposed to sea breeze. If you can not find a
adequate place without direct see breeze, protection wall should be constructed.
ffInstall the outdoor unit in a place (such as near buildings etc.) where it can be prevented from sea breeze which can
damage the outdoor unit.
Outdoor unit
Outdoor unit
Sea
Sea breeze
Sea
ffIf you cannot avoid installing the outdoor unit by the seashore, construct a protection wall around to block the sea
breeze.
• Protection wall should be constructed with a solid material
Outdoor unit
Protection wall
such as concrete to block the sea breeze and the height and
the width of the wall should be 1.5 times larger than the size
Sea breeze
of the outdoor unit. Also, secure over 700mm between the
protection wall and the outdoor unit for exhausted air to
Sea
ventilate.
ffInstall the outdoor unit in a place where water can drain smoothly.
❋❋ If you cannot find a place satisfying above conditions, please contact manufacturer. Make sure to clean the sea water
and the dust on the outdoor unit heat exchanger and spread corrosion inhibitor on heat exchanger. (At least one
time per one year.)
01 PREPARATION
Sea breeze
ENGLISH-7
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Deciding on where to install the outdoor unit
Space Requirements for Outdoor Unit
1500 or more
300 or more
When installing 1 outdoor unit
2000 or more
300 or more
1500 or more
❋❋ When the air outlet is towards the wall
300 or more
❋❋ When the air outlet is opposite the wall
600 or more
1500 or more 300 or more
600 or more
❋❋ When 3 sides of the outdoor unit are blocked by the wall ❋❋ The upper part of the outdoor unit and the air outlet is
towards the wall
300 or more
❋❋ The upper part of the outdoor unit and the air outlet is
opposite the wall
❋❋ When front and rear side of the outdoor unit is towards
the wall
ENGLISH-8
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When installing more than 1 outdoor unit
(Unit : mm)
1500 or more
01 PREPARATION
300 or more
❋❋ When the air outlet is towards the wall
600 or more
600 or more
600 or more
600 or more
❋❋ When front and rear side of the outdoor unit is towards the wall
1500 or more
600 or more
3000 or more
1500 or more
300 or more
❋❋ When 3 sides of the outdoor unit are blocked by the wall
500 or more
600 or more
500 or more
300 or more
300 or more
300 or more
❋❋ The upper part of the outdoor unit and
the air outlet is towards the wall
3000 or more
300 or more
❋❋ When front and rear side of the outdoor unit is towards the wall
CAUTION
• The units must be installed according to distances declared, in order to permit accessibility from each side,
either to guarantee correct operation of maintenance or repairing products.
The unit’s parts must be reachable and removable completely under safety condition (for people or things).
ENGLISH-9
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INSTALLATION
Outdoor unit installation
The outdoor unit must be installed on a rigid and stable base to avoid any increase in the noise level and vibration,
particularly if the outdoor unit is to be installed in a location exposed to strong winds or at a height, the unit must be fixed to
an appropriate support(wall or ground).
Fix the outdoor unit with anchor bolts.
• The anchor bolt must be 20 mm or higher from the base surface.
(Unit : mm)
360
330
Anchor bolt hole
384
NOTE
620
940
CAUTION
• Make a drain outlet around the base for outdoor unit drainage.
• If the outdoor unit is installed on the roof, you have to check the ceiling strength and waterproof the unit.
Outdoor Unit Support
20mm
Outdoor
Unit
Anchor bolt
OUTDOOR UNIT INSTALLED ON THE WALL BY RACK
-- Ensure the wall will be able to suspend the weight of rack and outdoor unit ;
-- Install the rack close to the column as much as possible ;
-- Install proper grommet in order to reduce noise and residual vibration
transferred by outdoor unit towards wall.
CAUTION
When installing air guide duct
• Check and make sure that screws do not damage the copper pipe.
• Secure air guide duct on guard fan.
Outdoor Unit
Support
Base Surface
Designed to cut off
residual vibration
from outdoor unit
to rack.
(not supplied with
product)
Soft rubber designed to cut off
vibration from rack to wall.
(not supplied with product)
ENGLISH-10
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Connecting the cable
CAUTION
• During the unit installation make first refrigerant connections and then electrical connections. If unit is
uninstalled first disconnect electrical cables, then refrigerant connections.
• Connect the air conditioner to grounding system before performing the electrical connection.
• When installing the unit, you shouldn't use inter connection wire.
02 INSTALLATION
Two electronic cables must be connected to the outdoor unit.
ffThe connection cord between indoor unit and outdoor unit.
ffThe power cable between outdoor unit and auxiliary circuit breaker.
ffSpecially for Russian and European market, before installation, the supply authority should be consulted to determine the
supply system impendance to ensure compliance.
Example of Air Conditioner System
When using ELCB for 1 phase
Power cable
Communication cable
Communication cable
Outdoor Unit
OR
Indoor Unit
Grounding
Power cable
When using ELCB for 3 phase 4 wires
Power cable
Communication cable
Outdoor Unit
Communication cable
OR
Indoor Unit
Grounding
Power cable
❋❋ If an outdoor unit is installed in a place in danger of an electric leak or submergence, you must install the ELCB.
ENGLISH-11
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Connecting the cable
Power Cable Specifications
ffThe power cable is not supplied with air conditioner.
-- Select the power supply cable in accordance with relevant local and national regulations.
-- Wire size must comply with the applicable local and national code.
-- Specifications for local wiring power cord and branch wiring are in compliance with local cord.
Single Phase
Model
Type of
outdoor
Outdoor Unit Indoor Unit
unit
A
B
Outdoor Units
Rated
Hz
Volts
Input Current [A]
Voltage Range Outdoor (Down_Amp)
Min.
Max.
Cooling
Heating
Power Supply
Indoor
Total
MCA
MFA
AC030HCADKH
AC030HBMDKH
50
220-240
198
264
24
24
2.7
26.7
26.7
30
AC036HCADKH
AC036HBMDKH
50
220-240
198
264
24
24
2.7
26.7
26.7
30
AC042HCADKH
AC042HBMDKH
50
220-240
198
264
24
24
2.7
26.7
26.7
30
AC048HCADKH
AC048HBMDKH
50
220-240
198
264
24
24
2.7
26.7
26.7
30
3 Phase
Model
Type of
outdoor
Outdoor Unit Indoor Unit
unit
A
B
NOTE
Outdoor Units
Rated
Hz
Volts
AC036HCADNH AC036HBMDKH
50
AC042HCADNH AC042HBMDKH
50
AC048HCADNH AC048HBMDKH
50
Input Current [A]
Voltage Range Outdoor (Down_Amp)
Power Supply
Indoor
Total
MCA
MFA
12
2.7
14.7
14.7
16.2
12
2.7
14.7
14.7
16.2
12
2.7
14.7
14.7
16.2
Min.
Max.
Cooling
Heating
380-415
342
418
12
380-415
342
418
12
380-415
342
418
12
1. Voltage range
-- Units are suitable for use on electrical systems where voltage supplied to unit terminal is not below or above
listed range limits
2. Maximum allowable voltage variation between phases is 2 %.
3. Wire size & type must comply with the applicable local and national code.
-- Wire size : Based on the value of MCA.
-- Wire type : 60245 IEC57(IEC) or H05RN-F(CENELEC) grade or more.
4. MFA is used to select the circuit breaker and the ground fault circuit interrupter (earth leakage circuit breaker).
5. MCA represents maximum input current.
MFA represents capacity which may accept MCA
❋❋ Abbreviations
-- MCA : Min. Circuit Amps. (A)
-- MFA : Max. Fuse Amps. (A)
ENGLISH-12
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Between Indoor unit and Outdoor unit Connection Cable Specifications(Common in use)
Power supply
Max/Min(V)
Indoor Power Cable
1Φ, 220-240 V, 50Hz
±10 %
2.5 mm² , 3wires
Communation Cable
0.75~1.5 mm², 2wires
ffPower 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 H07RN-F or IEC:60245 IEC 66 / CENELEC: H07RN-F)
When installing the indoor unit in a computer room or net work room, use
the double shielded (Tape aluminum / polyester braid + copper ) cable of
FROHH2R type.
02 INSTALLATION
Power supply
1-phase terminal block spec
AC power : M5 screw
1(L) 2(N)
L
15
12
Communication : M4 screw
Communication : M3 screw
N
6.7
10.1
9.7
11.4
3-phase terminal block spec
AC power : M4 screw
1(L) 2(N) L1(R) L2(S) L3(T)
9.95
Communication : M4 screw Communication : M3 screw
N
11.55
10.1
11.4
6.7
9.7
ENGLISH-13
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Connecting the cable
Wiring Diagram of Power Cable
When using ELB for 1 phase and 3 phase
ff1 phase
1(L) 2(N)
L
N
Cable tie
Electrical
component box
Power Supply
Indoor Power
MCCB
Cable clamp
ELB
Communication cable
MCCB
Main power cable
ff3 phase
1(L) 2(N) L1(R) L2(S) L3(T)
N
Indoor Unit
Cable tie
❋❋ The appearance of the unit may be
different from the picture depending on
the model.
Cable clamp
Communication
cable
CAUTION
Connection
cord
3 Phase 4 Wires power
cable (AC 380 V)
• You should connect the power cable into the power cable terminal and fasten it with a clamp.
• The unbalanced power must be maintained within 2 % of supply rating.
-- If the power is unbalanced greatly, it may shorten the life of the condenser. If the unbalanced power is exceeded over
4 % of supply rating, the indoor unit is protected, stopped and the error mode indicates.
• To protect the product from water and possible shock, you should keep the power cable and the connection cord of the
indoor and outdoor units within ducts. (with appropriate IP rating and material selection for your application)
• Ensure that main supply connection is made through a switch that disconnects all poles, with contact gap of a least 3 mm.
• Devices disconnected from the power supply should be completely disconnected in the condition of overvoltage category.
• Keep distances of 50 mm or more between power cable and communication cable.
ENGLISH-14
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Silence mode controller wiring diagram
02 INSTALLATION
ASSY Control out
Outdoor unit
Silence Mode Controller
Wiring Diagram of Connection Cord
1 phase
3 phase
1(L)
2(N)
1(L) 2(N)
Indoor Unit
L
1(L)
2(N)
F2
F1
Indoor Unit
1(L) 2(N) L1(R) L2(S) L3(T)
N
Cable tie
N
F2
F1
F1
F2
Cable tie
Indoor Power
Main power cable
Communication cable
Cable clamp
NOTE
Cable clamp
Communication cable
Indoor Power
3 Phase 4 Wires power cable (AC 380V)
• Lay the electrical wiring so that the front cover does not rise up when doing wiring work and attach the
front cover securely.
• Ground wire for the indoor unit and outdoor unit connection cable must be clamped to a soft copper
tin-plated eyelet terminal with M4 screw hole(NOT SUPPLIED WITH UNIT ACCESSORIES).
ENGLISH-15
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Connecting the cable
Connecting the Power Terminal
ffConnect the cables to the terminal board using the compressed ring terminal.
ffCover a solderless ring terminal and a connector part of the power cable and then connect it.
Silver solder
Nominal dimensions
for cable
[mm2(inch2)]
B
D
d1
E
F
L
d2
t
Nominal dimensions Standard Standard Standard Min. Min. Max. Standard Min.
for screw dimension Allowance dimension Allowance dimension Allowance [mm [mm [mm dimension Allowance [mm
[mm(inch)] [mm(inch)] [mm(inch)] [mm(inch)] [mm(inch)] [mm(inch)] [mm(inch)] (inch)] (inch)] (inch)] [mm(inch)] [mm(inch)] (inch)]
4(3/8)
9.5(3/8)
4/6
(0.006/
0.009)
8(3/16)
15(9/16)
10(0.01)
8(3/16)
16(0.02)
4.3
(3/16)
+ 0.2(+0.007)
0(0)
9
28.5
(3/8) (1-1/8)
30
9
(1(3/8)
3/16)
33
13
(1(1/2)
5/16)
15
(5/8)
34
13 (1-3/8)
(1/2)
8.4
(1-3/16)
+ 0.4(+0.015)
0(0)
8.4
(1-3/16)
+ 0.4(+0.015)
0(0)
1.15
(0.04)
8.4
(1-3/16)
+ 0.4(+0.015)
0(0)
1.45
(0.05)
+ 0.4(+0.015)
0(0)
1.7
(0.06)
13
38
(1/2) (1-1/2)
43
13
(1(1/2)
11/16)
17.5
14
50
(11/16) (9/16) (2)
8.4
(1-3/16)
+ 0.4(+0.015)
0(0)
1.8
(0.07)
8.4
(1-3/16)
+ 0.4(+0.015)
0(0)
1.8
(0.07)
8.4
(1-3/16)
+ 0.4(+0.015) 2.0
0(0)
(0.078)
±0.2
(±0.007)
5.6(1/4)
+0.3(+0.011)
-0.2(-0.007)
3.4(1/8)
±0.2
(±0.007)
6
(1/4)
15(9/16)
±0.2
(±0.007)
7.1(1/4)
+0.3(+0.011)
4.5(3/16)
-0.2(-0.007)
±0.2
(±0.007)
7.9
(5/16)
8(3/16)
16(10/16)
±0.2
(±0.007)
9(3/8)
+0.3(+0.011)
-0.2(-0.007)
5.8(1/4)
±0.2
(±0.007)
9.5
(5/16)
8(3/16)
12(1/2)
±0.3
(±0.011)
11.5(7/16)
+0.5(+0.019)
7.7(5/16)
-0.2(-0.007)
±0.2
(±0.007)
11
(3/8)
±0.3
(±0.011)
+0.5(+0.019)
13.3(1/2)
-0.2(-0.007)
25(0.03)
8(3/16)
16.5(10/16)
8(3/16)
16(10/16)
35(0.05)
9.4(3/8)
±0.2
(±0.007)
8(3/16)
22(7/8)
50(0.07)
8(3/16)
22(7/8)
±0.3
(±0.011)
13.5(1/2)
+0.5(+0.019)
11.4(7/16)
-0.2(-0.007)
±0.3
(±0.011)
70(0.10)
8(3/16)
24(1)
±0.4
(±0.015)
17.5(11/16)
+0.5(+0.019)
13.3(1/2)
-0.4(-0.015)
±0.4
(±0.015)
5
(3/16)
20
(3/4)
12.5
(1/2)
18.5
(3/4)
20
(3/4)
51
(2)
8.4
(1-3/16)
8.4
(1-3/16)
8.4
(1-3/16)
0.9
(0.03)
ffConnect the rated cables only.
ffConnect using a driver which is able to apply the rated torque to the screws.
ffIf the terminal is loose, fire may occur caused by arc. If the terminal is connected too firmly, the terminal may be
damaged.
Tightening Torque (kgf • cm)
CAUTION
M3
5.0~7.5
Communication : F1, F2
M4
12.0~18.0
3phase AC power : 1(L), 2(N), L1(R), L2(S), L3(T), N
M5
20.0~30.0
1phase AC power : 1(L), 2(N), L, N
• When connecting cables, you can connect the cables to the electrical part or connect them through the holes
below depending on the spot.
• Run transmission wiring between the indoor and outdoor units through a conduit to protect against external
forces, and feed the conduit through the wall together with refirgerant piping.
• Remove all burrs at the edge of the knock-out hole and secure the cable to the outdoor knock-out using lining
and bushing with an electrical insulation such as rubber and so on.
• Must keep the cable in a protection tube.
• Keep distances of 50 mm or more between power cable and communication cable.
• When the cables are connected through the hole, remove the Plate bottom.
ENGLISH-16
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Refrigerant piping system
Maximum allowable length
Items
Applicable outdoor unit models
AC048HCAD✴H
Total pipe length (L1+…+Ln+1+a+b)
-
-
Main pipe (L1)
50 m
75 m
Max. distance among indoor units (D)
-
-
Max. length after branch
-
-
Max. height difference between outdoor and indoor units (h1)
30 m
30 m
Max. height difference among indoor units(h2)
-
-
Max Pipe length difference among indoor units after branch
[L2-L3 or L2-L4 or L2-L5 or a-b or (a+L2)-(b+L4) or (a+L3)-(b+L5)]
-
-
L1
02 INSTALLATION
Single installation
AC030HCADKH
AC036HCAD✴H
AC042HCAD✴H
indoor
h1
outdoor
ffTemper grade and minimum thickness of the refrigerant pipe.
CAUTION
Outer diameter [mm]
Minimum thickness [mm]
ø6.35
0.7
ø9.52
0.7
ø12.70
0.8
ø15.88
1.0
ø15.88
0.8
ø19.05
0.9
ø22.23
0.9
Temper grade
C1220T-O
C1220T-1/2H
OR
C1220T-H
• Make sure to use C1220T-1/2H (Semi-hard) pipe for more than Ø19.05 mm. In case of using C1220T-O (Soft) pipe
for Ø19.05 mm, pipe may be broken, which can result in an injury.
Make at least one round:
It will reduce noise and vibration
❋❋ The appearance of the unit may be different from the diagram depending on the model.
CAUTION
• After connecting pipes with knock-out treatment, plug the space.
• Following the pipe connection, make sure to proceed precisely to prevent interference with the internal parts.
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Adding refrigerant (R-410A)
The outdoor unit is loaded with sufficient refrigerant for the standard piping. Thus, refrigerant must be added if the piping is
lengthened. This operation can only be performed by a qualified refrigeration specialist. For quantity of adding refrigerant,
refer to page 18.
1. Check that the stop valve is closed entirely.
2. Charge the refrigerant through the service port of liquid stop valve.
• Do not charge the refrigerant through the gas side service port.
NOTE
3. If you cannot charge the refrigerant according to the upper steps, following these :
1) Open both liquid stop valve and gas stop valve.
2) Operate the air conditioner by pressing the K2 key on the outdoor unit PCB.
3) About 30 minutes later, charge the refrigerant through the service port of gas stop valve.
• If necessary, refer to the pressure table classified by outdoor temperature.
NOTE
Outdoor unit
Gas side stop valve(service port)
Liquid side stop valve(service port)
Ref.
Indoor unit
Balance
1
Vacuum pump
How to Calculate the Quantity of Adding Refrigerant
The quantity of additional refrigerant is variable according to the installation situation. Thus, make sure the outdoor unit
situation before adding refrigerant. This operation can only be performed by a qualified refrigeration specialist.
Single installation outdoor unit
Interconnection pipe length (m)
Model
0~30
AC030HCADKH / AC036HCAD✴H / AC042HCAD✴H
30~40
40~50
50~60
60~70
70~75
+10g/m over 5 m
AC048HCAD✴H
+10g/m over 5 m
ENGLISH-18
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Connecting up and removing air in the circuit
CAUTION
• When installing, make sure there is no leakage. When recovering the refrigerant, ground the compressor first
before removing the connection pipe. If the refrigerant pipe is not properly connected and the compressor
works with the service valve open, the pipe inhales the air and it makes the pressure inside of the refrigerant
cycle abnormally high. It may cause explosion and injury.
Outer Diameter (D)
Torque (N•m)
ø6.35 mm(1/4")
14~18
ø9.52 mm(3/8")
34~42
ø12.70 mm(1/2")
49~61
ø15.88 mm(5/8")
68~82
ø19.05 mm(3/4")
100~120
Outdoor unit
A (Gas)
B (Liquid)
02 INSTALLATION
The air in the indoor unit and in the pipe must be purged. If air remains in the refrigeration pipes, it will affect the compressor
either reduce cooling/heating capacity or lead to a malfuction. Refrigerant for air purging is not charged in the outdoor unit.
Use Vacuum Pump as shown at the right figure.
1. Connect each assembly pipe to the appropriate valve on the outdoor unit and tighten the flare nut.
2. Referring to the illustration opposite, tighten the flare nut on section B first manually and then with a torque
wrench, applying the following torque.
C
D
3. Connect the charging hose of low pressure side of manifold gauge to the
packed valve having a service port as shown at the figure.
CAUTION
• Make the electrical connection and leave the system into “stand by
mode”. Do not turn on the system.
This is necessary to speed up vacuum operation (full OPEN position
of Electronic Expansion Valve - EEV -).
4. Open the valve of the low pressure side(A) of manifold gauge
counterclockwise.
Vacuum
pump
❋❋ The designs and shape are subject to
change according to the model.
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Connecting up and removing air in the circuit
5. Purge the air from the system using vacuum pump for about 10 minutes.
ffClose the valve of the low pressure side of manifold gauge clockwise.
ffMake sure that pressure gauge shows -0.1MPa(-76cmHg) after about 10
minutes. This procedure is very important to avoid a gas leak.
ffTurn off the vacuum pump.
ffRemove the hose of the low pressure side of manifold gauge.
6. Set valve cork of both liquid side and gas side of packed valve to the open
position.
7. Mount the valve stem nuts and the service port cap to the valve, and
tighten them at the torque of 183kgf•cm with a torque wrench.
8. Check for gas leakage.
ffAt this time, especially check for gas leakage from the 3-way valve’s stem
nuts(A port), and from the service port cap.
CAUTION
B(liquid)
A(gas)
• 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), s
uitable 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 “Connecting
refrigerant pipe section”.
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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.
Rough
Burr
02 INSTALLATION
Oblique
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)
Depth (A)
ø6.35 mm(1/4")
1.3 mm
ø9.52 mm(3/8")
1.8 mm
ø12.70 mm(1/2")
2.0 mm
ø15.88 mm(5/8")
2.2 mm
ø19.05 mm(3/4")
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
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
1/4"
17
18
23
20
18
16~18
Allen(hex.) 5
9
-
0.34
3/8"
22
42
23
20
18
16~18
Allen(hex.) 5
9
-
0.34
1/2"
26
55
29
40
18
16~18
Allen(hex.) 5
13
-
0.34
5/8"
29
65
29
40
18
16~18
Allen(hex.) 5
13
-
0.34
3/4"
36
100
38
40
18
16~18
Allen(hex.) 5
13
-
0.34
CAUTION
• 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.
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Performing leak tests
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 40 bar (gauge).
LEAK TEST WITH R-410A (after opening valves)
B(Liquid)
A(Gas)
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.
Once you have completed all the connections, check for possible leaks using ❋❋ The designs and shape are subject to
leak detector specifically designed for HFC refrigerants.
change according to the model.
To check for gas leaks on the
Then, using a leak detector, check the
Outdoor unit
Valves on sections A and B.
Connecting the drain hose to the outdoor unit
When using the air conditioner in the heating mode, ice may accumulate . During de-icing (defrost operation), the
condensed water must be drained off safely. Consequently, you must install a drain hose on the outdoor unit, following the
instructions below.
1. Make space more than 80 mm between the bottom of the outdoor unit and the ground for installation of the drain
hose, as shown in figure.
2. Insert the drain plug into the hole on the underside of the outdoor unit.
3. Connect the drain hose to the drain plug.
4. Ensure that the drained water runs off correctly and safely.
‘B’
mm
13mm
80 mm
5. Be sure to plug the rest of drain holes not connected with drain plugs using drain caps.
DRAIN CAP(5EA)
DRAIN PLUG(2EA)
❋❋ When installing the product, make sure that the rack is not placed under the drain hole.
❋❋ If the product is installed in a region of heavy snow, allow enough separation distance between the product and the
ground.
ENGLISH-22
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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 an insulator around each
refrigerant pipe.
• When insulating the pipe, use non-slit insulator.
NBR
2. Select the insulation of the refrigerant pipe.
ffInsulate the gas side and liquid side pipe referring to the thickness according to the pipe size.
ffLess than Indoor temperature of 30 °C and humidity of 85 % is the standard 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.
ffInsulator’s heat-resistance temperature should be more than 120 °C.
02 INSTALLATION
CAUTION
Insulation Type (Heating/Cooling)
Pipe
Pipe size
Standard [Less than 30 °C, 85 %]
High humidity [over 30 °C, 85 %]
Remarks
EPDM, NBR
Liquid pipe
Gas pipe
Ø6.35~Ø9.52
9 t
9 t
Ø12.7~Ø19.05
13 t
13 t
Ø6.35
13 t
19 t
Ø9.52~Ø19.05
19 t
25 t
Internal temperature is
higher than 120 °C
ffWhen 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.
ENGLISH-23
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Using stop valve
To Open the Stop Valve
1. Open the cap and turn the stop valve counterclockwise by using a
hexagonal wrench.
2. Turn it until the axis is stopped.
NOTE
Cap
Service port
• Do not apply excessive force to the stop valve and always use special
instruments. Otherwise, the stopping box can be damaged and the
back sheet can leaks.
• If the watertight sheet leaks, turn the axis back by half, tighten the
stopping box, then check the leakage again. If there is no leakage
any more, tighten the axis entirely.
Axis
Sealing point
3. Tighten the cap securely.
To Close the Stop Valve
1.
2.
3.
4.
Remove the cap.
Turn the stop valve clockwise by using a hexagonal wrench.
Tighten the axis until the valve reached the sealing point.
Tighten the cap securely.
CAUTION
• When you use the service port, always use a charging hose, too.
• Check the leakage of refrigerant gas after tightening the cap.
• Must use a spanner and wrench when you open/tighten the stop valve.
Interface module Installation (Optional)
Accessories (Interface module : MIM-B13D)
Interface module
Interface module power
cable
Interface module
communication cable
Installation Manual
Case
Cable-tie
1. Fix the case at with bolts on the side of the control box in the outdoor unit.(See the picture)
2. Attach the Interface module PCB to the case in the control box in the outdoor unit, then connect the power and the
communication cable between the Interface module and the outdoor unit; refer to the figure of pages 14~15.
3. If you install a Interface module to an outdoor unit, every indoor unit which is connected to an outdoor unit can be
controlled simultaneously.
4. Each outdoor unit connected to the same centralized controller has its own Interface module.
ENGLISH-24
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03 OTHERS
Fix the case
(Control Box in the outdoor unit)
Pump down Procedure
Pump down will be carried out when an evaporator is replaced or when the unit
is relocated in another area.
1. Remove the cap from the low pressure side.
2. Turn the low pressure side valve clockwise to close and connect a pressure
gauge (low pressure side) to the service valve, and open the valve again.
B(liquid)
3. Set the unit to the cooling Test mode by pushing K2 button (Check if the
compressor is operating.)
4. Turn the high pressure side valve counter clockwise to close.
5. When the pressure gauge indicates “0” turn the low pressure side valve
counter clockwise to close.
6. Stop operation of the air conditioner by pushing K3 button.
7. Close the each cap of valve.
NOTE
A(gas)
Relocation of the air conditioner
• Refer to this procedure when the unit is relocated.
• Carry out the pump down procedure (refer to the details of ‘pump down’).
• Remove the power cord.
• Disconnect the assembly cable from the indoor and outdoor units.
• Remove the flare nut connecting the indoor unit and the pipe.
• At this time, cover the pipe of the indoor unit and the other pipe using a cap or vinyl plug to avoid foreign
material entering.
• Disconnect the pipe connected to the outdoor unit. At this time, cover the valve of the outdoor unit and the
other pipe using a cap or vinyl plug to avoid foreign material entering.
• Make sure you do not bend the connection pipes in the middle and store together with the cables.
• Move the indoor and outdoor units to a new location.
• Remove the mounting plate for the indoor unit and move it to a new location.
ENGLISH-25
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Checking correct grounding
If the power distribution circuit does not have a grounding or the grounding does not comply with specifications, an
grounding electrode must be installed. The corresponding accessories are not supplied with the air conditioner.
1. Select an grounding electrode that complies with the specifications given
Carbon
Steel core
in the illustration.
plastic
Terminal M4
2. Connect the flexible hose to the flexible hose port.
ffIn damp hard soil rather than loose sandy or gravel soil that has a higher
PVC-insulated green / To grounding
grounding resistance.
screw
yellow wire
ffAway from underground structures or facilities, such as gas pipes, water pipes,
telephone lines and underground cables.
50cm
ffAt least two metres away from a lightening conductor grounding electrode
and its cable.
30cm
NOTE
• The grounding wire for the telephone line cannot be used to ground
the air conditioner.
3. Finish wrapping insulating tape around the rest of the pipes leading to the
outdoor unit.
4. Install a green/yellow coloured grounding wire :
ffIf the grounding wire is too short, connect an extension lead, in a mechanical way and wrapping it with insulating tape
(do not bury the connection).
ffSecure the grounding wire in position with staples.
NOTE
• If the grounding electrode is installed in an area of heavy traffic, its wire must be connected securely.
5. Carefully check the installation, by measuring the grounding resistance with a ground resistance tester. If the
resistance is above required level, drive the electrode deeper into the ground or increase the number of grounding
electrodes.
6. Connect the grounding wire to the electrical component box inside of the outdoor unit.
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OTHERS
Testing operations
03 OTHERS
1. Check the power supply between the outdoor unit and the auxiliary circuit breaker.
ff1 phase power supply : L, N
ff3 phases power supply : R,S,T,N
2. Check the indoor unit.
1) Check that you have connected the power and communication cables correctly. (If the power cable and
communication cables one mixed up or connected incorrectly, the PCB will be damaged.)
2) Check the thermistor sensor, drain pump/hose, and display are connected correctly.
3. Press K1 or K2 on the outdoor unit PCB to run the test mode and stop.
ffPress K1 button  Start Heating test mode  Press K1 button  Stop  Heating test mode 7-seg display :
ffPress K2 button  Start Cooling test mode  Press K2 button  Stop  Cooling test mode 7-seg display :
ffPress K1 button twice  Start Defrost test mode  Press K1 button  Stop  Defrost test mode 7-seg display :
ffPress K2 button twice  Start Inverter Checker mode  Press K2 button  Stop 
Inverter Checker mode 7-seg display :
Condition 1 : The outdoor temperature is under 10 °C
Condition 2 : All the temperature conditions should meet the defrost conditions
Outdoor unit
ON
ON
1 2 3 4
1 2 3 4
4. After 12 minutes of stationary condition check each indoor unit air treatment :
ffCooling mode(indoor unit check)  Inlet air temp. - Outlet air temp. : From 10 °C to 12 °C
ffHeating mode(indoor unit check)  Outlet air temp. - Inlet air temp. : From 11 °C to 14 °C
ffIn heating mode, the indoor fan motor can remain off to avoid cold air blown into conditioned space.
5. How to reset the power supply of the outdoor unit and deactivate the eco mode (standby mode) :
ffOutdoor unit type A, B, and C :
Press [K3] button over 1 sec to reset the power supply of the outdoor unit and deactivate the eco mode. (standby mode)
6. View Mode : When the K4 switch is pressed, you can see information about our system state as below.
Short
push
Display contents
SEG1
SEG2
SEG3
SEG4
Unit
1
Order frequency
1
Hundreds' digit Tens' digit
Unit digit
2
Current frequency
2
Hundreds' digit Tens' digit
Unit digit
Hz
3
The number of current indoor units
3
Hundreds' digit Tens' digit
Unit digit
EA
4
The sensor for outdoor air intake
4
+/-
Tens' digit
Unit digit
°C
5
Discharge sensor
5
Hundreds' digit Tens' digit
Unit digit
°C
6
Eva-Mid sensor
6
+/-
Unit digit
°C
Tens' digit
Hz
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Testing operations
Short
push
7
Display contents
Cond sensor
SEG1
7
SEG2
+/-
SEG3
SEG4
Unit
Tens' digit
Unit digit
°C
A
8
Current
8
Tens' digit
Unit digit
The first place of
decimals
9
Fan RPM
9
Thousands'
digit
Hundreds' digit
Tens' digit
10
Target discharge temperature
A
Hundreds' digit Tens' digit
Unit digit
°C
11
EEV
B
Hundreds' digit Tens' digit
Unit digit
step
12
The capacity sum of indoor units
C
Tens' digit
Unit digit
The first place of
decimals
kW
Protective control
0: No Protective
control
1: Freezing
2: Non-stop
defrosting
3: Over-load
4: Discharge
5: Total electric
current
rpm
Frequency status
0: Normal
1: Hold
2: Down
3: Up_limit
4: Down_limit
-
13
Protective control
D
0: Cooling
1: Heating
14
The temperature of heat radiating
plate
E
Hundreds' digit Tens' digit
Unit digit
-
15
S/W check
F
-
-
-
-
Long push 1
Main micom version
Year (Hex)
Month (Hex)
Date (Tens' digit) Date (Unit digit)
After short push 1
Inverter micom version
Year (Hex)
Month (Hex)
Date (Tens' digit) Date (Unit digit)
After short push 1
E2P version
Year (Hex)
Month (Hex)
Date (Tens' digit) Date (Unit digit)
❋❋ Long push K4(Main micom ver.)  short push 1 more(Inv. micom ver.)  short push 1 more(E2P. ver.)
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7. DIP switch option
ON
1 2 3 4
1 2 3 4
SW507
SW508
03 OTHERS
ON
ffDIP switch(SW507) option
Switch 1
Switch 2
Switch 3
Switch 4
On (default)
Off
Auto address
Disable snow prevention control
Manual address
Enable snow prevention control
Silence Mode option
❋❋ When snow prevention mode is in use, eco mode(standby mode)will not be functional.
❋❋ When DPM installation is applied, the time for auto addressing will take 1~2 minutes.
During the addressing,
and
will be repeatedly displayed in order for 2 indoor unit connection,
,
and
for 3 indoor unit connection,
,
,
and
for 4 indoor unit connection.
When addressing is completed,
,
,
,
and
will be repeatedly displayed in order for 2 indoor unit
connection,
,
,
,
,
and
for 3 indoor unit connection,
,
,
,
,
,
and
for 4 indoor unit connection.
ffDIP switch(SW508) option
On(default)
Off
Switch 1
Auto Silence Mode
Manual Silence Mode
Switch 2
-
-
Switch 3
-
-
Switch 4
-
-
8. Silence Mode DIP switch option
ffDIP switch(SW507) option
Switch 3
Switch 4
Operation
On
On
Disable Silence mode
On
Off
Silence mode 1st step
Off
On
Silence mode 2nd step
Off
Off
Silence mode 3rd step
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Troubleshooting
The table below give indication about self diagnostic routine. Some of error code requires activities exclusively for Authorized
Service Center.
Outdoor unit
If an error occurs during the operation, it is displayed on the outdoor unit PCB LED, both MAIN PCB and INVERTER PCB.
No.
-
Displayed
PCB Assy
Meaning
Remarks
Error Code
Normal operation
MAIN/INVERTER (MAIN : IndoorOutdoor : Green ON)
(INVERTER : MAIN PCBINVERTER PCB : Green ON)
Unit quantity miss matching between indoor and
outdoor.
1
MAIN
2
MAIN/INVERTER
3
MAIN/INVERTER 1 min. Time out of communcation error(MainInverter)
Check indoor quantity setting
in outdoor
E201
Abnormal state, no communication between Indoor and Check electrical connection
Outdoor Main PCB
and setting
E202
Check electrical connection
and setting
E203
4
MAIN
Outdoor temp sensor error
Check Outdoor sensor Open/
Short
E221
5
MAIN
Cond. temp sensor error
Check Cond. sensor Open/
Short
E231
6
MAIN
Discharge temp sensor error
Check Discharge sensor
Open/Short
E251
7
MAIN
OLP Sensor Error
Check OLP sensor Open/Short
E320
8
MAIN
Detection of Outdoor Freezing when Comp. Stop
Check Outdoor Cond.
E403
9
MAIN
Protection of Outdoor Overload when Comp. Stop
Check Comp. when it start
E404
MAIN
Discharge temperature of a compressor in an
outdoor unit is overheated.
10
11
MAIN
E416
Heating operation is not available since the outdoor air
temperature is over 30 °C.
Heating
E440
Cooling operation is not available since the outdoor air
temperature is lower than -15 °C.
Cooling
E441
FAN1 error
E458
FAN2 error
E475
12
MAIN/INVERTER Outdoor unit BLDC Fan 1 or Fan 2 error
13
MAIN/INVERTER Comp. Starting error
E461
14
MAIN
Primary Current Trip error
15
MAIN
Over current trip / PFC over current error
E462
16
MAIN/INVERTER IPM(IGBT Module) Over Current(O.C)
17
MAIN/INVERTER Comp. Over load error
Check OLP sensor
E463
E464
E465
18
MAIN/INVERTER DC-Link voltage under/over error
Check AC Power or DC_Link
voltage
19
MAIN/INVERTER Comp. wire missing error
Check Comp. wire
E467
20
MAIN/INVERTER Current sensor error
Check Outdoor Inverter PBA
E468
Check Outdoor EEPROM data
E471
21
MAIN
Outdoor EEPROM error
E466
22
MAIN/INVERTER IPM(IGBT Module) or PFCM Temperature sensor Error
Check Outdoor Inverter PBA
E474
23
MAIN/INVERTER PFC Overload Error
Check Outdoor Inverter PBA
E484
24
MAIN/INVERTER IPM is over heated.
Check Outdoor Inverter PBA
E500
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No.
Displayed
PCB Assy
25
MAIN
GAS Leak error
Check indoor and outdoor
unit model
E554
26
MAIN
Capacity miss match between indoor and outdoor
Check indoor and outdoor
unit model
E556
27
MAIN
Option code miss matching among the indoors (only for
DPM)
Check indoor option code
E557
28
MAIN
Error due to not using Smart Install
Check Indoor option code
E508
29
MAIN
Outdoor EEPROM error (checksum)
Check Outdoor EEPROM Data
E470
E422
E590
Meaning
Remarks
Error Code
MAIN
EEV or Valve Close error-Self diagnosis
31
MAIN
Outdoor EEPROM checksum error between MAIN and
INVERTER.
Check Outdoor Inverter PBA
32
MAIN
Error of Terminal Block's Thermal Fuse(Open)
03 OTHERS
30
1. Check if the service valve
is open
2. Check for refrigerant leakage
(pipe connections, heat
exchanger) and charge
refrigerant if necessary
3. Check if there's any blockage
on refrigerant cycle (indoor
unit/outdoor unit)
4. Check if additional refrigerant
has been added after pipe
extension
E198
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