Air Conditioner
Installation manual
AM****XM**R
• Thank you for purchasing this Samsung Product.
• Before operating this unit, please read this installation manual carefully and retain it for future
reference.
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 1 2024-01-17 오후 3:56:52
2
Contents
Safety precautions ..................................................................................... 3
Preparing for installation .............................................................................. 5
Selecting installation location .......................................................................... 6
Space requirement for installation ...................................................................... 8
Installation and base ground work for an outdoor unit .................................................. 11
Refrigerant pipe installation ........................................................................... 12
Wiring work .......................................................................................... 40
Grounding work ...................................................................................... 47
Charging refrigerant .................................................................................. 48
Basic segment display ................................................................................ 50
Setting outdoor unit option switch and key function .................................................... 50
Setting the HR Changer/MCU and Pipe Addresses (for HR Only) ......................................... 57
Inspection and check operation ....................................................................... 61
Checking lists after nishing installation ............................................................... 63
Trial operation ........................................................................................ 64
Product Information .................................................................................. 65
For information on Samsung’s environmental commitments and product regulatory obligations, e.g.
REACH, visit our sustainability page available via www.samsung.com
Correct Disposal of This Product
(Waste Electrical & Electronic Equipment)
(Applicable in countries with separate collection systems)
This marking on the product, accessories or literature indicates that the product and its electronic
accessories (e.g. charger, headset, USB cable) should not be disposed of with other household waste
at the end of their working life. To prevent possible harm to the environment or human health from
uncontrolled waste disposal, please separate these items from other types of waste and recycle them
responsibly to promote the sustainable reuse of material resources.
Household users should contact either the retailer where they purchased this product, or their local
government ofce, for details of where and how they can take these items for environmentally safe
recycling.
Business users should contact their supplier and check the terms and conditions of the purchase
contract. This product and its electronic accessories should not be mixed with other commercial
wastes for disposal.
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 2 2024-01-17 오후 3:56:52
3
ENGLISH
Safety precautions
Carefully follow the precautions listed below because they are essential to guarantee the safety of the
equipment.
WARNING
• Always disconnect the air conditioner from the power supply before servicing it
or accessing its internal components.
• Verify that installation and testing operations are performed by qualied
personnel.
• Verify that the air conditioner is not installed in an easily accessible area.
General information
▶ Carefully read the content of this manual before installing the air conditioner and store the manual in a
safe place in order to be able to use it as reference after installation.
▶ For maximum safety, installers should always carefully read the following warnings.
▶ Store the operation and installation manual in a safe location and remember to hand it over to the new
owner if the air conditioner is sold or transferred.
▶ This manual explains how to install an indoor unit with a split system with two SAMSUNG units. The use of
other types of units with different control systems may damage the units and invalidate the warranty. The
manufacturer shall not be responsible for damages arising from the use of non compliant units.
▶ The 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. Making such changes or improper connections may damage the units and 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, res 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 qualied 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 res.
▶ Do not place containers with liquids or other objects on the unit.
▶ All the materials used for the manufacture and packaging of the air conditioner are recyclable.
▶ The packing material and exhaust batteries of the remote controller(optional) must be disposed of in
accordance with current laws.
▶ The air conditioner contains a refrigerant that has to be disposed of as special waste. At the end of its life
cycle, the air conditioner must be disposed of in authorized centers or returned to the retailer so that it can
be disposed of correctly and safely.
▶ Wear protective equipment (such as safety gloves, goggles, and headgear) during installation and
maintenance works. Installation/repair technicians may be injured if protective equipment is not properly
equipped.
▶ This appliance is not intended for use by persons (including children) with reduced physical, sensory or
mental capabilities, or lack of experience and knowledge, unless they have been given supervision or
instruction concerning use of the appliance by a person responsible for their safety. Children should be
supervised to ensure that they do not play with the appliance.
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 3 2024-01-17 오후 3:56:52
4
Safety precautions
▶ For use in Europe : This appliance can be used by children aged from 8 years and above and persons with
reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been
given supervision or instruction concerning use of the appliance in a safe way and understand the hazards
involved. Children shall not play with the appliance. Cleaning and user maintenance shall not be made by
children without supervision.
▶ When the product operates in heat mode during winter time, it operates protection mode when the
outdoor temperature drops below 0°C. Therefore, supply the power during winter time. If the power is not
supplied, compressor protection mode will not operate and cause product malfunction.
Installing the unit
IMPORTANT: When installing the unit, always remember to connect rst 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 ames to avoid the occurrence of res, 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
▶ 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 specications and that the
installed power is sufcient 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 specications 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.
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 4 2024-01-17 오후 3:56:52
5
ENGLISH
Preparing for installation
Outdoor unit classication
Shape
Model Heat Recovery
1phase
AM040*XMDER
AM050*XMDER
AM060*XMDER
3phase
AM040*XMDGR
AM050*XMDGR
AM060*XMDGR
Installation combination
▶ You must install the indoor unit that uses R-410A only.
▶ If sum capacity of the combined indoor units exceeds the capacity of an outdoor unit, the capacity of each
indoor unit is reduced below the rated capacity. Therefore, keeping the combination of indoor units within
the capacity of an outdoor unit is recommended.
Outdoor unit Outdoor unit capacity (HP)
The maximum number of
connectable indoor units
Total capacity of the
connected indoor units
(kW)
AM040*XMD*R Series 4 8 6.0~15.7
AM050*XMD*R Series 5 9 7.0~18.2
AM060*XMD*R Series 6 10 7.8~20.2
Accessories
▶ You must keep the following accessories until the installation is nished.
▶ Hand over the installation manual to the customer after nishing the installation.
Manual (2) Tube Socket (1) for 4/5 HP only Drain plug (1) Rubber Leg (4) Drain cap (3)
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 5 2024-01-17 오후 3:56:53
6
Preparing for installation
Moving the Outdoor Unit
▶ Select the moving route in advance.
▶ Be sure that moving route is safe from the weight of the outdoor unit.
▶ Do not slant the product more than 30˚ when carrying it. (Do not lay the product down sideways.)
▶ The surface of the heat exchanger is sharp. Be careful not to get injured while moving and installing.
When moving with a crane or wire rope
▶ When moving an outdoor unit to a higher place such as the rooftop.
- Fasten the wire rope as seen in the picture.
- Move the outdoor unit with the product packed to prevent possible
product damage during the transportation.
Wire rope /
straps
Wood palette
When moving an outdoor unit with hands
▶ Moving the outdoor unit by lifting up and carrying due to the short travel distance.
- Two people should carry the outdoor unit by holding transportation handle.
- Be careful not to damage the heat exchanger of the rear side of the outdoor unit
during transportation.
- Be careful not to get hurt by the sharp surface of the heat exchanger.
Selecting installation location
Decide the installation location based on the following condition and obtain the user’s approval.
▶ Avoid a place that may disturb your neighbor. Noise may occur from the outdoor unit and the discharged
air may run into the neighborhood. (Be careful of the operation time in a residential area)
▶ Install the outdoor unit on a hard and even area that can support its weight.
▶ Choose a at place where rainwater does not settle or leak.
▶ Choose a place that will avoid strong winds.
▶ Choose a place that is well ventilated and allows enough space for repairs and service. (Discharge duct can
be purchased privately.)
▶ Choose a place where the connection of refrigerant pipe between an indoor unit and outdoor unit is within
allowed distance.
▶ Make sure that the condensed water dripping from the drain hose runs out properly and safely.
▶ Choose a place where ammable gas does not leak.
▶ Choose a place where the unit could not come into contact with snow and rain.
▶ When installing the outdoor unit near sea shore, make sure it is not directly exposed to sea breeze.
- When installing the outdoor unit near sea shore, consult the qualied installer since the places above
require additional measures for corrosion resistance. (You should remove salt and dust of a heat
exchanger at least once a year.)
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 6 2024-01-17 오후 3:56:53
7
ENGLISH
Installation Guide at the seashore
Make sure to follow below guides when installing at the seashore.
1. Do not install the product in a place where it is directly exposed to sea water and sea breeze.
- Make sure to install the product behind a structure (such as building) that can block see breeze.
- Even when it is inevitable to install the product in seashore, make sure that product is not directly
exposed to sea breeze by installing a protection wall.
2. Consider that the salinity particles clinging to the external panels should be sufciently washed out.
3. Because the residual water at the bottom of the outdoor unit signicantly promotes corrosion,
make sure that the slope does not disturb drainage.
- Keep the oor level so that rain does not accumulate.
- Be careful not to block the drain hole due to foreign substance
4. When product is installed in seashore, periodically clean it with water to remove attached salinity.
5. Make sure to install the product in a place that provides smooth water drainage. Especially, ensure that
the base part has good drainage.
6. If the product is damaged during the installation or maintenance, make sure to repair it.
7. Check the condition of the product periodically.
- Check the installation site every 3 months and perform anti-corrosion treatment such as R-Pro supplied
by SAMSUNG (Code : MOK-220SA) or commercial water repellent grease and wax, etc., based on the
product condition.
- When the product is to be shut down for a long period of time, such as off-peak hours, take appropriate
measures like covering the product.
8. If the product installed within 500m of seashore, special anti-corrosion treatment is required.
※ Please contact your local SAMSUNG representative for further details.
Outdoor unit
Sea breeze
Sea
Outdoor unit
Sea breeze
Sea
Protection wall
Outdoor unit
Sea breeze
Sea
※ Protection wall should be constructed with a solid material
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 of the outdoor unit. (Also, allow over 700mm
space between the protection wall and the outdoor unit for
ventilation of exhaust air.)
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 7 2024-01-17 오후 3:56:53
8
Space requirement for installation
• Install the indoor unit away from any interfering sources such as radio, computer, stereo
equipment and also select a place where the electrical wiring work and an indoor unit installation
are possible.
- Especially keep the unit at least 3m away from the electrical equipment in an area where weak
electromagnetic waves are generated and install the protection tube to protect the main power
cable and communication cable.
- Make sure that there is no equipment that genetrates electromagnetic waves. If so, malfunction
of the control system may occur due to the effect of the electromagnetic wave. (For example: The
remote control sensor of the indoor unit may not have good reception in an area with uorescent
lamp style lighting.)
• Make sure the outdoor unit is installed in a safe place where it will not be obstructed by snowfall.
The frame should be installed in a place where the air inlet and heat exchanger of the unit are not
buried in the snow.
• A ventilation system may be required when the outdoor unit is installed in a closed space or room,
even though R-410a is not poisonous or ammable.
• Install railing around the outdoor unit to prevent it falling when the unit is installed on a high place
such as the roof of the building.
• Avoid installing the units in places near an exhaust pipe and ventilating opening exposed to
corrosive gas, oxides of sulfur, ammonia gas or sulfur gas herbicides. (These places need additional
anticorrosive treatments. Please contact manufacture to avoid corroding copper pipes or soldered
parts.)
• There shouldn’t be any inammable material such as wood and oil around the indoor unit.
Otherwise, external re may spread to the product.
• According to the condition of power supply, electric noise or unstable voltage can occur
malfunction of electric parts or control system. (At the ship or places using power supply from
electric generator… etc)
CAUTION
Outdoor Unit
Indoor Unit
Remote Control
1m or more
1m or more
1.5m or more
1.5m or more
3m or more
Breaker
Stereo
Breaker
1.5m or more
▶ Make sure that the water dripping from the drain hose runs away correctly and safely.
▶ You should repaint or protect the damaged part so that the paint of the cabinet does not peel off and
become rusty during installation. When the cabinet becomes rusty, the life of an outdoor will be reduced.
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 8 2024-01-17 오후 3:56:53
9
ENGLISH
▶ Make a space for ventilation and service as seen in the picture.
▶ When multiple outdoor units are combined for installation, allow enough space for ventilation against a
wall. If the ventilation space is not allowed, product malfunction may occur.
▶ The side with logo is the front side of the outdoor unit.
※ Figure Description
Top view Side view
Back side : Air intake
Front side : Air outlet
Front side : Air
outlet
Back side : Air
intake
• , Air ow direction.
When installing 1 outdoor unit
※ When the air outlet is opposite the wall ※ When the air outlet is toward the wall (Unit : mm)
300 or more
1500 or more
※ When 3 sides of the outdoor unit are blocked by
the wall
※ The upper part of the outdoor unit is blocked and
the air outlet is toward the wall
300 or more
150 or more
600 or more
1500 or more
2000 or more
※ The upper part of the outdoor unit is blocked and
the air outlet is opposite the wall
※ When the walls are blocking front and the rear of
the outdoor unit
500 or more
300 or more
1500 or more 300 or more
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 9 2024-01-17 오후 3:56:54
10
Space requirement for installation
When installing more than 1 outdoor unit
※ When 3 sides of the outdoor unit are blocked by the wall (Unit : mm)
300 or more
300 or more 600 or more 600 or more 600 or more
※ When the walls are blocking front and the rear of the outdoor units
300 or more1500 or more
600 or more 600 or more
※ When front and rear side of the outdoor unit is toward the wall
1500 or more 600 or more 3000 or more 300 or more3000 or more
• Should adopt bar type louver. Don’t use a type of rain resistance louver.
[Bar type louver]
[Rain resistance louver]
• Louver specications.
- Angle criteria : less than 20˚
- Opening ratio criteria : greater than 80%
WARNING
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 10 2024-01-17 오후 3:56:54
11
ENGLISH
Installation and base ground work for an outdoor unit
▶ Install the outdoor unit 150mm higher than the base ground and install the drain hole to connect the pipe
to the drainage.
▶ When the front fan of an outdoor unit is installed in a place where the average snowfall is more than
150mm, the discharge duct should be attached to the outdoor unit.
▶ The concrete foundation should be 1.5 times larger than bottom of the outdoor unit.
▶ It is necessary to install wire mesh or steel bar when outdoor units are installed on a soft foundation.
▶ When installing multiple outdoor units at the same place,
install the H beam on the base ground. (When installing
a number of outdoor units, you can install it on the base
ground.)
▶ Install the H beam(150mm x 150mm x t10 : basic
specication) or vibration absorption frame to jut out from
the base ground.
▶ After installing the H beam, apply corrosion protection.
▶ Install a square pad(t=20mm or more) to prevent vibration
from the outdoor unit onto the base ground. Place the
outdoor unit on the H beam and x it with the bolt, nut and
washer. (Fix with M10 basic anchor bolt, nut and washer.)
Base ground work
< When installing on the ground >
Drain hole 150mm or more
< When installing on the roof >
Install the outdoor unit
horizontally on the ground
150mm or more
▶ The outdoor unit should be supported within the range of measurement below for base ground work.
(Unit : mm)
Anchor bolt position
360
384
620
940
330
▶ When the outdoor unit needs to be supported, x it with wire as shown in
the picture.
- Slightly unwind the four screws on the cover top of the outdoor unit.
- Wind wires round the four screws and fasten the screws again.
- Fix the wires to the ground.
Outdoor unit
Anchor bolt
Nut, Spring
washer
H beam
Square pad
A+10~20mm or
more
A
20mm
75mm
or more
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 11 2024-01-17 오후 3:56:54
12
Installation and base ground work for an outdoor unit
• If the outdoor unit is not xed securely, product may fall and it might cause loss of life or property
damage.
• Do not install the outdoor unit on a wood palette.
• Fix the outdoor unit securely to the base ground with anchor bolts.
• The manufacturer is not responsible for the damage occurred by not adhering to the standard of
the installation.
• To protect the outdoor unit from external condition such as rain, install it on the base ground and
connect the drain pipe to the drainage.
CAUTION
Refrigerant pipe installation
Refrigerant pipe work
▶ The length of refrigerant pipe should be as short as possible and the height difference between an indoor
unit and outdoor unit should be minimized.
▶ The piping length between the outdoor unit and the indoor unit may not exceed the allowable piping
length, height difference, and the allowable length after branching is done.
▶ The pressure of the R-410A is high. Use only certied refrigerant pipe and follow the installation method.
▶ After pipe installation, charge the refrigerant according to the length of the pipe and R-410A refrigerant
should be used.
▶ Use clean refrigerant pipe and there shouldn’t be any harmful ion, oxide, dust, iron content or moisture
inside pipe.
▶ Use tools and accessories that t on R-410A only.
• When installing, make sure there is no leakage. When collecting the refrigerant, stop the
compressor rst 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.
WARNING
Tool Work If compatible with conventional tool
Pipe cutter
Refrigerant pipe
work
Pipe cutting
Compatible
Flaring tool Pipe aring
Refrigerant oil
Apply refrigerant oil on
ared part
Exclusive ether oil, ester oil, alkali benzene
oil or synthetic oil
Torque wrench
Connect are nut with
pipe
Compatible
Pipe bender Pipe bending
Nitrogen gas
Air tightening test
Inhibition of oxidization
Brazing tool Pipe brazing
Manifold gauge
Air tightening
test ~ additional
refrigerant charging
Vacuuming, charging
and checking operation
Need exclusive one to prevent mixture
of R-22 refrigerant oil use and also the
measurement is not available due to the
high pressure.
Refrigerant charging
hose
Need exclusive one due to the refrigerant
leakage or inow of impurities.
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 12 2024-01-17 오후 3:56:54
13
ENGLISH
Tool Work If compatible with conventional tool
Vacuum pump Vacuum drying
Compatible (Use products which contain
the check valve to prevent the oil from
owing backward into the outdoor unit.)
Use the one that can be vacuumed up to
100.7kpa(5Torr.-755mmHg).
Scale for refrigerant
charging
Charging refrigerant Compatible
Gas leak detector Gas leak test
Need exclusive one
( The one for R-134a can be used)
Flare nut
You must use the are nut equipped with product.
Refrigerant leakage may occur when the conventional are nut for R-22 is used.
Temper grade and minimum thickness of the refrigerant pipe
Outer diameter [mm] Minimum thickness [mm] Temper grade
ø6.35 0.7
Annealed
ø9.52 0.7
ø12.70 0.8
ø15.88 1.0
ø19.05 0.9
Drawn
ø22.23 0.9
Low Pressure gas pipe
Liquid pipe
High pressure gas pipe
only for heat recovery
(The end is welded by tube cap)
CAUTION
• For pipes larger than Ø 19.05, drawn type (C1220T-1/2H or C1220T-H) type copper pipe must be used. If
a annealed type (C1220T-O) copper pipe is used, pipe may break due to its low pressure resistance and
cause personal injury.
• There are three pipes, liquid pipe, low pressure gas pipe and high pressure gas pipe. Be careful not to
use high pressure gas pipe when using for heat pump.
• The end of high pressure gas pipe only for heat recovery is welded by the tube cap. So if you use the
heat recovery, please remove the tube cap and then connect the pipe to that.
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 13 2024-01-17 오후 3:56:54
14
Refrigerant pipe installation
Selecting refrigerant pipe and branch joint for Heat Pump
(A) (B) (C)
(D) (E) (E)
First
branch
joint
▶ Install the refrigerant pipe according to the main pipe size of each outdoor unit capacity.
▶ When the pipe length between an outdoor unit and the farthest indoor unit including elbow exceeds 90m,
the gas pipe size should be upgraded one step among the main pipes from the outdoor unit to the rst
branch joint. (The liquid pipe size will be maintained.)
▶ If the capacity of the outdoor unit can decline due to the pipe length, upgrade the pipe size one step (gas
pipe).
※ For the case that the diameter of the default pipe of an outdoor unit does not match that of the pipe
installed on the site, use a socket provided by default together with the outdoor unit of 4/5 HP.
The size of the pipe between an outdoor unit and the rst branch joints (A)
Select the size of the main pipe according to the table below.
Outdoor unit capacity
(HP)
Maximum pipe length within 90 m Maximum pipe length over 90 m
Liquid pipe
(mm)
Gas pipe
(mm)
Liquid pipe
(mm)
Gas pipe
(mm)
4 ø9.52 ø15.88 ø9.52 ø19.05
5 ø9.52 ø15.88 ø9.52 ø19.05
6 ø9.52 ø19.05 ø9.52 ø22.22
* Maximum pipe length : The pipe length between an outdoor unit and the farthest indoor unit.
The size of the pipe between the branch joints (B)
Select the pipe size according to the sum of indoor unit capacity which will be connected after the branch.
※ However, if the size of the pipe between branch joints (B) is bigger than the size of the pipe connected to
the outdoor unit (A), select the pipe size (A).
Indoor unit total capacity (kW) Liquid pipe (mm) Gas pipe (mm)
15.0 kW and below ø9.52 ø15.88
15.1 kW ~ 20.2 kW ø9.52 ø19.05
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 14 2024-01-17 오후 3:56:54
15
ENGLISH
The size of the pipe between the branch joint and the indoor unit (C)
Make a selection according to indoor unit capacity.
Indoor unit capacity (kW) Liquid pipe (mm) Gas pipe (mm)
6.0 kW and below ø6.35 ø12.70
6.1 kW ~ 16.0 kW ø9.52 ø15.88
16.1 kW ~ 23.0 kW ø9.52 ø19.05
Selecting the rst branch joint (D)
Make a selection according to the outdoor unit capacity.
Classication Outdoor unit capacity (HP) Model name
Y-joint (D)
4 MXJ-YA1509M
5 MXJ-YA1509M
6 MXJ-YA2512M
Selecting the other branch joints (E)
Select a branch joint according to the sum of indoor unit capacity which will be connected after the branch.
Classication
Indoor unit total capacity after
branch (kW)
Model name
Y-joint (E)
15.0 kW and below MXJ-YA1509M
15.1 kW ~ 20.2 kW MXJ-YA2512M
Distribution header (E) 20.2 kW and below MXJ-HA2512M
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 15 2024-01-17 오후 3:56:54
16
Refrigerant pipe installation
Selecting refrigerant pipe and branch joint for Heat Recovery
(A) (B) (C)
(D)
(E)
(E)
(E)
(F)
▶ Install the refrigerant pipe according to the main pipe size of each outdoor unit capacity.
▶ When the pipe length between an outdoor unit and the farthest indoor unit including elbow exceeds 90m,
the gas pipe size should be upgraded one step among the main pipes from the outdoor unit to the rst
branch joint. (The liquid pipe size will be maintained.)
▶ If the capacity of the outdoor unit can decline due to the pipe length, upgrade the pipe size one step (gas
pipe).
※ For 4/5 HP, don’t need to increase the size of the liquid pipe if the pipe length exceeds 90m.
The size of the pipe between an outdoor unit and the rst branch joints (A)
Select the size of the main pipe according to the table below.
Outdoor unit
capacity
(HP)
Maximum pipe length within 90 m Maximum pipe length over 90 m
Liquid pipe
(mm)
Low Pressure
gas pipe
(mm)
High Pressure
gas pipe
(mm)
Liquid pipe
(mm)
Low Pressure
gas pipe
(mm)
High Pressure
gas pipe
(mm)
4 ø9.52 ø19.05 ø15.88 ø9.52 ø19.05 ø15.88
5 ø9.52 ø19.05 ø15.88 ø9.52 ø19.05 ø15.88
6 ø9.52 ø19.05 ø15.88 ø9.52 ø22.22 ø19.05
* Maximum pipe length : The pipe length between an outdoor unit and the farthest indoor unit.
The size of the pipe between the branch joints and HR Changer, between HR Changer and MCU (B)
Select the pipe size according to the sum of indoor unit capacity which will be connected after the branch.
Indoor unit total capacity (kW) Liquid pipe (mm)
Low Pressure gas pipe
(mm)
High Pressure gas
pipe (mm)
20.2 kW and below ø9.52 ø19.05 ø15.88
The size of the pipe between HR Changer(E)/MCU(F) and the indoor unit (C)
Make a selection according to indoor unit capacity.
Indoor unit capacity (kW) Liquid pipe (mm) Gas pipe (mm)
6.0 kW and below ø6.35 ø12.70
6.1 kW ~ 16.0 kW ø9.52 ø15.88
16.1 kW ~ 23.0 kW ø9.52 ø19.05
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 16 2024-01-17 오후 3:56:55
17
ENGLISH
Selecting the rst branch joint (D)
The rst Y-joint(D) for liquid and low pressure gas pipes is MXJ-YA2512M regardless of the outdoor unit
capacity.
The rst Y-joint(D) for high pressure gas pipes is MXJ-YA1500M regardless of the outdoor unit capacity.
Keeping refrigerant pipe
To prevent foreign materials or water from entering the pipe, storing method and sealing method (especially
during installation)is very important. Apply correct sealing method depending on the environment.
Exposure place Exposure time Sealing type
Outdoor
Longer than one month Pipe pinch
Shorter than one month Taping
Indoor - Taping
Refrigerant pipe welding and safety information
Important information for refrigerant pipe work
• Make sure there is no moisture inside the pipe.
• Make sure there are no foreign substances and impurities in the pipe.
• Make sure there is no leakage.
• Make sure to follow the instruction when welding or storing the pipe.
CAUTION
Nitrogen ushing welding
▶ When welding the refrigerant pipes, ush them with nitrogen gas as shown in the picture.
▶ If you do not perform nitrogen ushing when welding the pipes, oxide may form inside the pipe. It can
cause the damage of the important parts such as compressor and valves etc.
▶ Adjust the ow rate of the nitrogen ushing with a pressure regulator to maintain 0.05m
3
/h or less.
Welding part
Nitrogen gas
Ø 6.35 (1/4") copper pipe
Stop valve
Taping
High pressure hose
Pressure regulator
Nitrogen gas
Flowmeter
Direction of the pipe when welding
▶ Direction of the pipe should be headed downward or in a sideways when welding.
▶ Avoid welding the pipe with pipe direction heading upward.
• When you test gas leakage after welding the pipes, use a designated solution for gas leakage
detection. If you use the detection solution that includes sulfuric ingredient, it may cause corrosion
to the pipes.
CAUTION
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 17 2024-01-17 오후 3:56:55
18
Refrigerant pipe installation
Cutting or aring the pipes
1. Make sure that you prepared the required tools.
▶ Pipe cutter, Deburring tool, aring tool and pipe holder, etc.
2. If you want to shorten the pipe, cut it with a pipe cutter ensuring that the cut edge remains at 90° with the
side of the pipe.
▶ Refer to below illustrations for correct and incorrect examples of cut edges.
90°
Oblique
Rough Burr
3. To prevent a gas leak, remove all burrs at the cut edge of the pipe using a Deburring tool.
4. Carry out aring work using aring tool as shown below.
A
Flaring bar
Pipe
Yoke
Flaring bar
Pipe
Flare nut
Clutch type Wing nut type
[Flaring tools]
Pipe diameter
[D (mm)]
Depth of aring part [A (mm)]
Using aring tool for
R-410A
Using conventional aring tool
Clutch type Wing nut type
Ø 6.35 0~0.5 1.0~1.5 1.5~2.0
Ø 9.52 0~0.5 1.0~1.5 1.5~2.0
Ø 12.70 0~0.5 1.0~1.5 1.5~2.0
Ø 15.88 0~0.5 1.0~1.5 1.5~2.0
5. Check that you ared the pipe correctly.
▶ Refer to below illustrations for correct and incorrect examples of ared pipe.
Uneven ThicknessCrackedDamaged SurfaceInclinedCorrect
• If foreign matters or burrs are not removed after cutting pipe, refrigerant gas may leak.
• If foreign matters enter inside the pipe, important interior parts of the unit may get damaged
or product efciency will be reduced. So, the direction of pipe should be downward during pipe
cutting or aring.
CAUTION
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 18 2024-01-17 오후 3:56:55
19
ENGLISH
Connecting the ared pipes
▶ Check if the aring is properly done according to the standard size.
▶ Align the center of the piping and tighten the are nut with your hands. Then, tighten the are nut with
torque wrench in a direction of the arrow indicated in below illustration.
▶ Make sure to use ester oil to coat the are connection section.
Flare connection
section
Flare nut
Pipe
Monkey wrench
Torque wrench
Outer diameter (D, mm)
Connection torque
(N·m)
Flare dimension (L, mm) Flare shape (mm)
Ø 6.35 14~18 8.7~9.1
90° ±2°
45° ±2°
R 0.4~0.8
L
D
Ø 9.52 34~42 12.8~13.2
Ø 12.70 49~61 16.2~16.6
Ø 15.88 68~82 19.3~19.7
Ø 19.05 100~120 23.6~24.0
• Blowing Nitrogen gas should be done when welding the pipe.
• Make sure to use the provided are nut.
• Make sure that there are no cracks or twisted part when you need to bend the pipe.
• Do not fasten the are nut with excessive strength.
• R-410A is a high pressure refrigerant and there is a risk of refrigerant leakage if the are
connection is not coated with ester oil. Therefore, apply ester oil to coat the are connection area.
CAUTION
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 19 2024-01-17 오후 3:56:55
20
Refrigerant pipe installation
Pipe installation for an outdoor unit
Pipe direction
The refrigerant pipe can be pulled out from front, ank, rear, and bottom side, so install it depending on the
installation site condition.
Caution for using knock-out hole
• Make sure not to damage the exterior of the outdoor unit.
• Remove all burrs at the edge of the knock-out hole and apply the paints it to
prevent rust.
• Use a cable tube and bushing to prevent a cable from being damaged when
passing through a knock-out hole.
• After installing pipes, block the unused knock hole to prevent small animal
from entering. However, the radiant heat hole (A) should be able to intake air.
CAUTION
Low Pressure
gas pipe
Liquid pipe
High pressure gas pipe
only for heat recovery
(The end is welded by
tube cap)
Caution for connecting the pipe
• When brazing the pipe, the unit may get
damaged by a brazing re and a ame. Use
a ame proong cloth to protect the unit
from a brazing re or ame.
• The O-ring and Teon packing inside
service valve may get damaged by a
brazing re. Wrap the bottom side of the
service valve with a wet cloth and braze it
as shown above. Make sure not to interrupt
the brazing with the drips from the wet
cloth.
• The connecting pipes of liquid side and
gas side should not contact each other
nor should they contact to the product.
Vibration may cause damage to the pipes.
CAUTION
Outdoor unit refrigerant pipe connection
Classication Front, ank, rear side of pipe connection Bottom side of pipe connection
Working process
• First, remove the pipe cover from unit.
• Separate the knock-out hole to use. If
the hole is open, small animals such as
squirrels and rats may get into the unit
through the hole and the unit may be
damaged.
• Separate the knock-out hole at the
bottom side of the unit and install
the pipe.
• After installing and insulating the pipe,
close up the remaining gap. If the gap
remains open, small animals such as
rats and squirrels may get inside the
unit and cause damage to the unit.
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 20 2024-01-17 오후 3:56:55
21
ENGLISH
Installing the branch joints
Branch joints must be installed ‘horizontally’ or ‘vertically’.
Horizontal installation
Vertical installation
• For A~J type branch joints : Connect the branch joint to the connection pipe with the provided
reducer.
• For K~Z type branch joints : Cut the connection part of the branch joint or the provided socket,
according to the diameter of the connection pipe, before connecting them.
Over 10~15mm
NOTE
• Install the branch joint within ±15° of the horizon or vertical line.
• Make sure that the pipe is not bent at where it is connected to the branch joint.
• Keep a minimum straight line distance of 500mm or more before connecting branch joint.
※ Install within ±15° of the horizon or vertical line.
Minimum straight
line (over 500mm)
Connect to
indoor unit
Pipe
Before branching
After branching
After branching
Gas side/Liquid side branch joint
Pipe connection
Socket
Connect to other branch joint or indoor unit
Socket
CAUTION
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 21 2024-01-17 오후 3:56:56
22
Refrigerant pipe installation
Installing the distribution header
1. Select the reducer that ts the diameter of the pipe.
<Gas side>
Socket
Pipe*
To indoor unit
Pipe*
Socket
To outdoor unit
<Liquid side>
Socket
Pipe*
To indoor unit
Pipe*
Socket
To outdoor unit
Provided item
* Pipe : Separately purchased item
2. If the number of connected indoor unit is fewer than ports on the distribution header, block the unused
ports with caps.
<Liquid side>
Case of blocking the unused
distribution header ports
Connect
in order
Welding part
Provided
item
<Gas side>
Case of blocking the unused
distribution header ports
Connect
in order
• For A~J type distribution header :
Connect the distribution header to the connection pipe with the provided reducer.
• For K~Z type distribution headers :
Cut the provided socket, according to the diameter of the connection pipe, before connecting it.
Over 10~15mm
NOTE
• Connect the indoor units in order, while respecting the direction of the arrow shown in the
illustration.
• When indoor units are connected to same distribution head, indoor unit must be connected in
order of their capacity, from largest to smallest.
CAUTION
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 22 2024-01-17 오후 3:56:56
23
ENGLISH
3. Install the distribution header horizontally.
▶ Install the distribution header horizontally so that its ports does not face down.
Below ±10°
Horizon line
Socket
Distribution header
Pipe (Separately purchased item)
Below ±15°
Horizon line
Horizon line
< Liquid side >
Below ±15°
Horizon line
Below ±10°
Horizon line
< Gas side >
Installing the HR Changer (E) and the MCU (F)
The HR Changer and the MCU specication
Classication Unit HR Changer (E) MCU (F)
Model name - MCU-R4NEK0N MCU-S6NEK3N
The exterior -
The number of branches EA 4 6
The maximum number of the connectable
indoor unit per branch
EA 3 3
The maximum capacity of the connectable
indoor unit per branch
kW 5.6 5.6
The maximum capacity of connectable indoor
units
kW 22.4 22.4
The maximum capacity of connectable indoor
units per branch (Using Y-Joint)
kW 14.0 14.0
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 23 2024-01-17 오후 3:56:56
24
Refrigerant pipe installation
• Indoor units without internal EEV (AM****NTD**, AM****NAD**) can not be connected directly
to the HR Changer or the MCU
• Please connect theses indoor units using EEV Kit (MEV-E**SA, MXD-E**K***A)
• You can connect the previous MCU (MCU-S4NEK3N, MCU-S2NEK2N, MCU-S1NEK1N)
If you use those MCUs, please refer to those MCUs' installation manual.
CAUTION
Installing indoor units using Y-connector
▶ If the capacity of the indoor unit is under 5.6kW, don't use Y-connector.
▶ If the capacity of the indoor unit is between 5.6 kW and 14.0 kW, use Y-connector for the gas and liquid line.
▶ In case of using Y-connector, it is only connectable for port combination as the followings;
- Connectable port combination for Y-connector : A + B port, C + D port, E + F port
- Non-connectable port combination for Y-connector : B + C port, D + E port, non-continuous port
▶ Set Dip Switch option on the HR Changer/MCU PBA for using Y-Connector(See page 57 for the detailed
instructions)
1
ON
2 3 41
ON
2
A B C D
3 4 1
ON
2
E F
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
A B C D E F
MCU address
switch
DIP switch
S/W option DIP
switch
S/W option DIP switch No. ON (Individual connection) OFF (Shared connection)
1 Each of ports A and B Both ports A and B
2 Each of ports C and D Both ports C and D
3 Each of ports E and F Both ports E and F
1
ON
2 3 4 1
ON
2 3 4 1
ON
2 3 4 1
ON
2 3 4
S/W Option S/W Option S/W Option S/W Option
Default
Combination of A+B port
Combination of C+D port Combination of E+F port
※ You cannot make a shared connection for the two ports B and C, and D and E at the same time.
A B C D E F
A B C D E F
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 24 2024-01-17 오후 3:56:56
25
ENGLISH
How to connect the pipes
Pipe connection from outdoor unit
Pipe connection to the indoor unit
Protect with wet towel
when welding
Pipe
connection to
the another
MCU
Low pressure gas pipe
connection (welding)
High pressure gas pipe
connection (welding)
Liquid pipe connection
(welding)
※ When installing the HR Changer and the MCU, use the pattern sheet for installation that is provided with
the product.
※ When welding the gas pipes, protect the product with the ame-proof sheet.
• When connecting the HR Changer with outdoor units, be attention to the direction.
Please connect the pipes to the HR Changer referring to the label with the direction of connection
on the HR Changer.
• When connecting the MCU with outdoor units, the default direction is set in the MCU.
If installing opposite direction, weld the enclosed copper cap in each high pressure, low pressure
and liquid pipes.
CAUTION
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 25 2024-01-17 오후 3:56:57
26
Refrigerant pipe installation
Examples of the refrigerant pipe installation for Heat Pump
Using Y-Joint
Using Distribution header
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 26 2024-01-17 오후 3:56:57
27
ENGLISH
Examples of the correct refrigerant pipe installation for Heat Recovery
For serial installation
1)*
HR Changer (E) or MCU (F)
HR Changer (E)
1)* Direct-connected indoor unit without HR Changer/MCU (for HR only)
- This indoor unit can only be used for cooling operation. (Heating operation is not possible.)
- Connect indoor unit to liquid and low pressure gas pipe.
- Change the installation option for direct-connected indoor unit without HR Changer/MCU. (refer to the
indoor unit installation manual)
- Be sure to combine the cooling only indoor units so that their total capacity becomes 50% or less of the
total capacity of all indoor units.
For parallel installation
HR Changer (E) or MCU (F)
HR Changer (E) or MCU (F)
HR Changer (E)
HR Changer (E)
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 27 2024-01-17 오후 3:56:57
28
Refrigerant pipe installation
Examples of the incorrect refrigerant pipe installation for Heat Recovery
Missing HR Changer for serial installation Missing HR Changer for parallel installation
MCU (F) MCU (F)
MCU (F)
HR Changer (E)
Incorrect order Branch location error
MCU (F)
HR Changer (E)
MCU (F)
Cooling Only
Indoor Unit
HR Changer (E)
• HR Changer(E) can be installed in series or in parallel.
• For serial installation, the order of HR Changer(E) and MCU(F) is very important.
HR Changer(E) must be installed after the outdoor unit.
If MCU(F) is installed rst after the outdoor unit, it will not work properly.
• For parallel installation, HR Changer(E) must be installed after the Y-joint.
If you don’t install HR Changer(E) after the Y-joint, it will not work properly.
• If you install only MCU(F) without HR Changer (E), it happen to occur the error(E214).
Cooling only indoor units must be installed behind the HR Changer.
CAUTION
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 28 2024-01-17 오후 3:56:58
29
ENGLISH
Allowable length of the refrigerant pipe and the installation examples for Heat Pump
Connection by Y-joint
Outdoor unit
Connection by Y-joint/EEV kit
Outdoor unit
Classication Y-joint connection Y-joint / EEV kit connection
Maximum
allowable
length of
pipe
Outdoor unit
~ Indoor units
Actual Length
The distance between the outdoor unit and the farthest indoor unit ≤ 150m
Ex) 8 indoor units
a+b+c+d+e+f+g+p≤ 150m
Ex) 6 indoor units
a+b+c+d+j ≤ 150m
Equivalent
length
The distance between an outdoor unit and the farthest indoor unit ≤ 175m
Main pipe
length
The main pipe(a) from the outdoor unit to the rst Y-joint should be
less than 110m.
Total length The sum of the total length of pipes should be less then 300m.
Maximum
allowable
height
Outdoor unit
~ Indoor units
Height
H1: The difference of height between an outdoor unit and indoor unit < 50/40m
Note1)
Height
H2: The difference of height between indoor units ≤ 50m
But, when wall mounted type indoor units (AM****NQD**, AM****NV***)
are installed, H2 is 15m or less
Maximum allowable
length after Y-joint
Actual Length
The distance between the rst Y-joint
and the farthest indoor unit ≤ 40m
Ex) 8 indoor units
b+c+d+e+f+g+p≤ 40m
Allowable length between EEV kit
and an indoor unit ≤ 20m
Ex) h, l, j ≤ 20m
EEV Kit Model name Remarks
EEV Kit ~
Indoor units
Actual pipe
lengh
2m or less
MEV-E24SA
1 indoor
Apply to products
without EEV (Wall
mounted & ceiling)
MEV-E32SA
20m or less
MXD-E24K132A
2 indoorMXD-E24K200A
MXD-E32K200A
MXD-E24K232A
3 indoor
MXD-E24K300A
MXD-E32K224A
MXD-E32K300A
※ When the equivalent length between an outdoor unit and the farthest indoor unit exceeds 90m, upgrade
the low pressure pipe of the main pipe one step.
Note 1) When indoor unit is located at higher level than outdoor unit, allowable height difference is 40m, but
when the indoor unit is located at lower level than outdoor unit, allowable height difference is 50m.
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 29 2024-01-17 오후 3:56:58
30
Refrigerant pipe installation
Connection by header joint
g
Outdoor unit
Header joint
Indoor unit
Connection by Y-joint/header joint
H2
H1
f
c
g
Outdoor unit
Indoor unit
Header joint
Y-joint
Classication Y-joint connection Y-joint / EEV kit connection
Maximum
allowable
length of
pipe
Outdoor unit
~ Indoor units
Actual Length
The distance between the outdoor unit and the farthest indoor unit ≤
150m
Ex) 8 indoor units
a+b+c+d+e+f+g+p≤ 150m
Ex) 6 indoor units
a+b+c+d+j ≤ 150m
Equivalent
length
The distance between an outdoor unit and the farthest indoor unit ≤ 175m
Main pipe
length
The main pipe(a) from the outdoor unit to the rst Y-joint should be
less than 110m.
Total length The sum of the total length of pipes should be less then 300m.
Maximum
allowable
height
Outdoor unit
~ Indoor units
Height
H1: The difference of height between an outdoor unit and indoor unit < 50/40m
Note1)
Height
H2: The difference of height between indoor units ≤ 50m
But, when wall mounted type indoor units (AM****NQD**, AM****NV***)
are installed, H2 is 15m or less
Maximum allowable
length after Y-joint
Actual Length
The distance between the rst Y-joint
and the farthest indoor unit ≤ 40m
Ex) 8 indoor units
b+c+d+e+f+g+p≤ 40m
Allowable length between EEV kit
and an indoor unit ≤ 20m
Ex) h, l, j ≤ 20m
※ When the equivalent length between an outdoor unit and the farthest indoor unit exceeds 90m, upgrade
the low pressure pipe of the main pipe one step.
Note 1) When indoor unit is located at higher level than outdoor unit, allowable height difference is 40m, but
when the indoor unit is located at lower level than outdoor unit, allowable height difference is 50m.
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 30 2024-01-17 오후 3:56:58
31
ENGLISH
Allowable length of the refrigerant pipe and the installation examples for Heat Recovery
Installing with MCU only
a
b
c d e
f
g
h i j
H2
H1
H3
HR Changer
MCU
Installing with MCU and Y-joint
a
b
c
g
h
i
j k
I
m
n
o
d e
f
H1
H4
H2
H3
HR
Changer
HR
Changer
MCU
Classication Installing with MCU only Installing with MCU and Y-joint
Maximum
allowable
length of pipe
Outdoor unit ~
Indoor units
Actual Length
The distance between the outdoor unit and the farthest indoor unit ≤ 150 m
Ex) a+g+j ≤ 150 m Ex) a+b+h+k ≤ 150 m
Equivalent
Length
The distance between an outdoor unit and the farthest indoor unit ≤ 175 m
Total Length
The sum of the total length of pipes should be less then 300 m.
Ex) a+b+c+d+e+f+g+h+i+j ≤ 300 m Ex) a+b+c+...+o ≤ 300 m
HR Changer ~
Indoor units
Pipe Length
The distance between HR Changer and the farthest indoor unit ≤ 40 m
Ex) b+c, b+d, b+e, f, g+h, g+i, g+j ≤
40 m
Ex) c+d, c+e, c+f, g, h+i, h+j, h+k, m,
n, o ≤ 40 m
Maximum
allowable
height difference
Outdoor unit ~
Indoor units
Pipe Length
H1 : The difference of height between an outdoor unit and indoor unit
< 50/40m
Note1)
Indoor unit ~
Indoor units
H2 : The difference of height between indoor units ≤ 25m
But when wall mounted type indoor units (AM****NQD**, AM****NV***)
are installed, H2 is 15 m or less.
Indoor unit ~
Indoor units
(in one HR
Changer or MCU)
H3 : The difference of height between indoor units in one HR Changer or
MCU ≤ 15m
HR Changer ~
HR Changer
H4 : The difference of height between HR Changers ≤ 20m
Maximum allowable
length after branch
joint
First branch joint ~
Fartherst Indoor
unit
Pipe Length
The distance between the rst branch joint and the farthest indoor unit ≤
40 m
Ex) g+j ≤ 40 m Ex) b+h+k, l+o ≤ 40 m
Note 1) When indoor unit is located at higher level than outdoor unit, allowable height difference is 40m, but
when the indoor unit is located at lower level than outdoor uint, allowable height difference is 50m.
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 31 2024-01-17 오후 3:56:59
32
Refrigerant pipe installation
Performing air tightening test
▶ Use tools for R-410A only to prevent the inow of foreign substances and to resist the internal pressure.
▶ Use dry Nitrogen gas to do an airtight test as below.
Apply pressure to the liquid side pipe,
gas side pipe with Nitrogen gas of 4.1MPa
(gauge pressure).
If you apply pressure more than 4.1MPa (gauge pressure),
the pipes may be damaged. Apply pressure using pressure
regulator.
Continue to apply pressure for minimum
24hours to check if the pressure drops.
After applying Nitrogen gas, check the change of pressure
using pressure regulator.
If the pressure drops, check if there is a
gas leak.
If the pressure is changed, apply soapy water to check the leak.
Check the pressure of the gas again.
Maintain 1.0 MPa (gauge pressure) of
the pressure before performing vacuum
drying and check for further gas leak.
After checking rst gas leak, maintain 1.0 MPa (gauge pressure)
to check for further gas leaks.
Nitrogen
gas
• If the joint of high pressure side is disconnected and the nitrogen gas come into contact with
human body, injury may occur. Tighten the joint connection rmly to prevent dangerous situation.
CAUTION
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 32 2024-01-17 오후 3:56:59
33
ENGLISH
Vacuuming a pipe and an indoor unit
▶ Use the tools for R-410A only to prevent the inow of foreign substances
and resist against the internal pressure.
▶ Use the vacuum pump with the check valve to prevent pump oil from
owing backward while the vacuum pump is stopped suddenly.
▶ Use the vacuum pump that can be vacuumed up to 666.6Pa(5mmHg).
▶ Close the service valve of the liquid side pipe, gas side pipe completely
when performing air tightening test or vacuum drying.
Pressure Increase
No
Connect the manifold gauge to the
liquid pipe and gas pipe.
Vacuum the liquid pipe and gas pipe
using the vacuum pump.
Make sure to install check valve to prevent pump oil
from owing into the pipe.
Vacuum those pipes for more than
2 hours and 30 minutes.
The time of vacuum drying may differ depending on
the length of the pipe or outdoor temperature.
Perform vacuum drying for at least 2 hours and 30
minutes.
Close the valve after checking the
vacuum gauge pressure has reached
at -100.7 kPa (gauge pressure).
Check the vacuum pressure using the vacuum
gauge.
Check whether the pressure is
maintained as -100.7 kPa (gauge
pressure), 5 torr. for an hour.
Charging additional refrigerant
according to piping length
Yes
Check the gas leak.
Vacuum destruction due to the
moisture inside the pipe
• Apply pressure with Nitrogen gas
of 0.05MPa (gauge pressure).
Perform vacuum drying again up
to -100.7 kPa (gauge pressure),
5 torr (for 2 hours or longer) and
evaluate the vacuum
Pressure Increase
Yes
No
• If the pressure rises in an hour, either water remains inside the pipe, or there will be a leak.
CAUTION
Vacuum
pump
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 33 2024-01-17 오후 3:57:00
34
Refrigerant pipe installation
Selecting additional refrigerant charging
▶ Basic refrigerant
The basic amount of additional refrigerant charged at a factory
Model Refrigerant Factory charge(kg)
AM040*XMDER
R-410A
3.2
AM050*XMDER 3.2
AM060*XMDER 3.3
AM040*XMDGR 3.2
AM050*XMDGR 3.2
AM060*XMDGR 3.3
▶ Charging additional refrigerant
The amount of additional refrigerant
charging
=
The amount of refrigerant charging for pipe +
the amount of refrigerant correction charging for an indoor
unit.
1. The amount of additional refrigerant depending on the liquid pipe size(HP/HR).
- Amount of additional refrigerant has to be calculated based on the sum of all liquid pipe length.
Size of liquid pipe (mm) 6,35 9,52 12,7 15,88
Additional amount (kg/m) 0,02 0,06 0,125 0,18
Additional refrigerant charging calculation = The sum of total length of Ø 9.52 liquid pipe(m) x 60g + the
sum of total length of Ø 6.35 liquid pipe(m) x 20g
Ex) a(Ø 9.52)=40m, b+c+d(Ø 9.52)=15m, e+f+g(Ø 6.35)=15m
The amount of additional refrigerant = 55m x 60g + 15m x 20g = 3600g
2. The amount of additional refrigerant depending on the connection of high pressure gas pipe(HR only)
- In case of HR system amount of additional refrigerant has to be calculated based on the sum of high
pressure gas pipe length from outdoor unit to MCU.
Size of high pressure gas pipe (mm) 15.88/19.05
Additional amount (kg/m) 0.01
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 34 2024-01-17 오후 3:57:00
35
ENGLISH
(Unit : kg)
Product
Capacity (kW)
1.5
1.7 2.2 2.8 3.6 4.5 5.6 6 7.1 8.2 9 9.3 11.2 12.8 14 16 18 500CMH
1000CMH
Interior 1way cassette (AM***NN1PEH/**)
0.15 0.15
Slim 1way cassette (AM***NN1D*H/**)
0.25 0.25 0.25 0.32 0.32
4way cassette S (600x600)
(AM***NNNDEH/**)
0.29
0.29 0.29 0.29 0.37 0.37 0.37
4way cassette S (AM***NN4DEH/**)
0.45 0.45 0.45 0.45 0.57 0.69 0.69
4way cassette S (AM***AN4PKH/**)
0.45 0.45 0.45 0.60 0.60 0.73 0.73 0.88 0.88
360 cassette (AM***KN4DEH/**)
0.45 0.45 0.45 0.45 0.69 0.69 0.69
LSP duct (AM***ANLDKH/**)
0.13 0.13 0.13 0.17 0.24 0.24 0.31 0.42 0.42 0.62 0.62
LSP duct (AM***FNLDEH/**)
0.17 0.17 0.17 0.26 0.35 0.35 0.45 0.42 0.42 0.62 0.62
LSP duct (with drain pump)
(AM***KNLDEH/**)
0.13 0.13 0.13 0.17 0.35 0.35 0.45 0.42 0.42 0.62 0.62
LSP duct (with drain pump)
(AM***MNLD*H/**)
0.24 0.24 0.31 0.42 0.42 0.62 0.62
MSP duct (AM***FNMDEH/**)
0.24 0.24 0.24 0.28 0.28 0.28 0.32 0.54
MSP duct (AM***HNMPKH/**)
0.22 0.22 0.22 0.22 0.31 0.38 0.38 0.38
MSP duct (with drain pump)
(AM***KNMDEH/**)
0.24 0.24 0.24 0.28 0.28 0.28 0.32 0.54
MSP duct (with drain pump)
(AM***ANMPKH/**)
0.45 0.45 0.45 0.45 0.45 0.45 0.80 0.84 0.84 0.84
HSP duct (AM***FNHDEH/**)
0.68 0.68 0.68
HSP duct (AM***HNHPKH/**)
(AM***JNHFKH/**)
0.38 0.38 0.38 1.15
HSP duct (with drain pump)
(AM***ANHPKH/**)
0.80 0.80 0.80 0.84 0.84 0.84
OAP duct (AM****NEPEH/**)
0.68
Floor Standing (AM****NFDEH/**)
(AM****NPDKH/**)
0.22 0.32 0.32 0.69
Console (AM****NJDEH/**)
0.16 0.27 0.27 0.27 0.27
Ceiling (AM****NCD*H/**)
0.39 0.39 0.56 0.95
Wall mounted (AM***TNADKH/**)
0.23
0.23 0.32 0.32 0.48 0.48 0.48 0.64
Wall mounted (AM***KNTDEH/**)
0.24
0.24 0.32 0.32 0.49 0.49 0.49
Wall mounted (with EEV)
(AM***TNVDKH/**)
0.23
0.23 0.32 0.32 0.48 0.48 0.48 0.64
Wall mounted (with EEV)
(AM***KNQDEH/**)
(AM***MNQDEH/**)
0.24
0.24 0.32 0.32 0.49 0.49 0.49 0.68
Ventilation (ERV plus)
(AM****NKDEH/**)
0.11 0.36
Hydro Unit HE (AM****NBDEH/**)
0.60
Hydro Unit HT (AM****NBF*B/**)
0.60 Note1)
MCU/HR Changer (MCU-**NE**N)
0.50
Ex) When the indoor unit AM022NN1DEH and AM056NN4DEH are combinated
Additional refrigerant charging = 250g + 450g = 700g
3. The total amount of additional refrigerant charging = the amount of refrigerant charging for pipe + the
amount of refrigerant for each indoor unit.
Ex) The amount of additional refrigerant charging = 3600g + 700g = 4300g
Note 1) In case the capacity conjunction of Hydro Unit HT exceeds 50% among the total indoor unit, please
don’t put the additional refrigerant.
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 35 2024-01-17 오후 3:57:00
36
Refrigerant pipe installation
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.
▶ Leave space of more than 50mm between the bottom of the outdoor unit and the ground for installation
of the drain hose, as shown in gure.
▶ Insert the drain plug into the hole on the underside of the outdoor unit.
▶ Connect the drain hose to the drain plug.
▶ Ensure that the drained water runs off correctly and safely.
13mm
50mm
▶ Be sure to plug the rest of drain holes not connected with drain plugs using drain caps.
Drain cap
Drain plug
Insulating refrigerant pipe or Y-joint
▶ You must check if there is a gas leak before completing all the installation process. After you check that
the gas does not leak, you must insulate the pipe and hose.
▶ Use EPDM insulation which meets the following condition.
Item Unit Standard
Density g/cm
3
0.048~0.096
Dimension change route by heat % -5 or less
Water absorption rate g/cm
3
0.005 or less
Thermal conductivity kcal/m·h·˚C 0.032 or less
Moisture transpiration factor ng/(m
2
·s·Pa) 15 or less
Moisture transpiration grade g/(m
2
·24h) 15 or less
Formaldehyde dispersion mg/L -
Oxygen rate % 25 or more
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 36 2024-01-17 오후 3:57:01
37
ENGLISH
Selecting the insulation of refrigerant pipe
▶ Insulate the gas pipe and liquid pipe by referring to the thickness of insulator for each pipe size.
▶ The standard condition is 30°C, with humidity less than 85%. In the conditions of high humidity, use one
grade thicker.
Pipe Pipe size (mm)
Insulation(Cooling, Heating)
Remarks
Standard
[30°C, 85%]
High humidity
[30 °C, 85% or more]
EPDM,NBR
Liquid pipe
Ø6.35~Ø9.52 9t 9t
Heat resisting temperature is
more than 120°C
Ø12.70~Ø50.80 13t 13t
Gas pipe
Ø6.35 13t 19t
Ø9.52
19t 25t
Ø12.70
Ø15.88
Ø19.05
Ø22.23
Insulating refrigerant pipe
▶ You must insulate refrigerant pipe, Y-joint, header joint, and pipe connection area.
▶ If you insulate the pipes, the condensed water does not fall from the pipes.
▶ Check if there are any insulation cracks on the bent pipe.
Insulation
Install the insulation to be
overlapped
Fix securely without any gap.
Indoor unit
Insulation
Gas side pipe
Liquid side
pipe
Indoor
unit
Clamp
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 37 2024-01-17 오후 3:57:01
38
Refrigerant pipe installation
Pipe insulation Pipe insulation after insulating EEV kit
• The insulation of the gas and liquid pipes can be in
contact with each other but they should not press
excessively against each other.
• When contacting the gas side and liquid side pipe,
use thicker insulation.
• When installing the gas side and liquid side pipes,
leave 10mm of space.
• When contacting the gas side and liquid side pipe,
use thicker insulation.
Insulation
Gas pipe
Liquid pipe
Insulation
Gas pipe
10mm
Liquid pipe
10mm 10mm
• Install the insulation not to be get wider and use adhesive on the connection part of it to prevent
moisture entering.
• Bind the refrigerant pipe with insulation tape if it is exposed to outside sunlight. (When binding the
pipe with nishing tape, be careful not to reduce the thickness of the insulation.)
• Install the refrigerant pipe respecting that the insulation does not get thinner on the bent part or
hanger of pipe.
• When the thickness of insulation is reduced, supplement the reduced thickness with additional
insulation.
Insulation for refrigerant pipe
a x 3
Hanger
Additional insulation
a
CAUTION
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 38 2024-01-17 오후 3:57:01
39
ENGLISH
Insulating the header joint
▶ Fasten the header joint using a cable tie and cover the connected part.
▶ Insulate the header joint and the brazing part and wrap the connected part with
an adhesive insulation tape to prevent dew formation.
Insulation
Adhesive insulation tape
Insulation for the
refrigerant pipe
Insulation for the
header joint
Insulation after brazing a stopper
Adhesive insulation tape
▶ Fix the header joint with a hanger after insulating it.
Insulating the Y-joint, liquid & gas side connecting pipe
▶ Attach the insulation provided with the Y-joint to the insulation purchased privately without a gap. Wrap
the connected part with insulation (Purchased privately) of a thickness of at least 10mm.
▶ Use insulation that should be able to handle an interior temperature of over 120°C. Wrap the Y- joint with
insulation of a thickness of at least 10mm.
Fix securely without any gap.
Provided insulation
Fix securely without
any gap.
Pipe insulation
(Purchased privately)
Pipe insulation
(Purchased privately)
150mm
Y-joint
Thickness of the insulation (Purchased
privately) should be at least thicker than 10mm.
Insulation tape (Purchased privately)
Pipe insulation (Purchased privately)
Pipe
※ Attach the adhesive insulation
tape to the pipe as shown in the
picture after insulating the pipe.
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 39 2024-01-17 오후 3:57:01
40
Wiring work
▶ Wiring work should be performed in accordance with related laws such as ‘Technical specication on
electric installation’, ‘Wiring regulations’ or ‘Installation manual’.
▶ Copper cable should be used for wiring work and all the wires or parts should be rated products.
▶ Wiring work should be performed by a company certied by an electric power company.
▶ Refer to the circuit diagram attached to the outdoor unit for detailed wiring work.
▶ Wiring work should be performed after disconnecting main circuit breaker and Y-joint switch.
▶ You must perform grounding work .
(Grounding resistance value should be less than 100Ω.)
When ELCB is installed, protective grounding resistance value can be applied.
(When the ELCB is 100mA, 0.1sec, protective grounding resistance value should be less than 250Ω at a
place where electric danger is high and should be less than 500Ω at other places. )
▶ Electric wiring circuit diagram displays outline only.
▶ Do not connect a heater to an outdoor unit and do not install a duct which you arbitrarily remodeled.
- Failure to do so may result in reduced capacity of an air conditioner, electric shock, and re.
▶ Do not connect the grounding wire to that of gas pipe, water pipe, lightning rod, or telephone.
- Gas pipe: If the gas leaks, explosion or ignition may occur.
- Water pipe: If rigid vinyl pipe is used, grounding effect will not work.
- Grounding wire and lightning rod of telephone: The electric potential of grounding wire may rise
abnormally in the falling of a thunderbolt.
▶ The ELB for ground-fault protection only should be combined with MCCB or fuse equipped load breaker
switch. In this case, you should use the one that has at least the same or more capcity as fuse capacity or
the rated current of MCCB.
▶ Use the wires that comply with regulated specication and rmly connect to the terminal board. Then
tighten it with the screws provided so that the terminal board cannot be moved by external force. (The
connecting cable and the grounding terminal should be locally procured). When wiring, the connection
cable shouldn’t be too tight.
▶ Apply silicon at the end of CD pipe so that rainwater does not enter.
Conduit leading into an outdoor unit
Silicone
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 40 2024-01-17 오후 3:57:01
41
ENGLISH
Overall System Conguration
Connection of the power cable (1 phase 2 wires)
Distribution board Outdoor unit Indoor unit
Communication
cable
220V
Wired remote
controller
Earth
1 phase
2 wires
220V-240V~
MCCB
+ ELB
ELCB
Or
MCCB
+ ELB
ELCB
Or
Earth
1 phase
2 wires
220V-240~
Connection of the power cable (1 phase 2 wires using EEV kit)
Distribution board Outdoor unit Indoor unit
1 phase
2 wires
220V-240~
Earth
Communication
cable
Wired remote
controller
EEV kit
1 phase
2 wires
220V-240V~
MCCB
+ ELB
ELCB
Or
MCCB
+ ELB
ELCB
Or
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 41 2024-01-17 오후 3:57:01
42
Wiring work
Connection of the power cable (3 phase 4 wires)
Distribution board Outdoor unit Indoor unit
Communication
cable
220V
Wired remote
controller
Earth
1 phase
2 wires
220V-240V~
MCCB
+ ELB
ELCB
Or
MCCB
+ ELB
ELCB
Or
Earth
3 phase
4 wires
380V~
Connection of the power cable (3 phase 4 wires using EEV kit)
Distribution board Outdoor unit Indoor unit
3 phase
4 wires
380V~
Earth
Communication
cable
Wired remote
controller
EEV
kit
1 phase
2 wires
220V-240V~
MCCB +
ELB
ELCB
Or
MCCB
+ ELB
ELCB
Or
• You must install an earth leakage breaker.
- ELCB(Earth Leakage Circuit Breaker)
- MCCB(Molded Case Circuit Breaker)
- ELB(Earth Leakage fuse breaker)
• Manufacturers are not responsible for re caused by not installing ELCB or MCCB.
• Install the cabinet panel near the outdoor unit for service convenience and emergency operation
switch off.
• You must install a circuit breaker that can prevent excess current and shut off the electric leakage
on the outdoor unit.
CAUTION
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 42 2024-01-17 오후 3:57:02
43
ENGLISH
Specication for circuit breaker and power supply cord
▶ Power supply cord is not supplied with air conditioner.
▶ Select the power supply cord in accordance with relevant local and national regulations.
▶ Wire size must comply with the applicable local and national code.
▶ The appliance shall be provided with a certied power supply cord and interconnection cord complying
with the national regulations of the countries in which the appliance is to be sold.
▶ Power supply cords of parts of appliances for outdoor use shall not be lighter than polychloroprene
sheathed exible cord. (Code designation IEC : 60245 IEC 57 / CENELEC : H05RN-F)
Model Voltage MCA MFA Ssc value (MVA)
AM040*XMDER
1phase, 220~240V/50Hz
22 25
(Note1)
AM050*XMDER 24 32
(Note1)
AM060*XMDER 30 40
(Note1)
(Note1) Equipment complying with IEC 61000-3-12.
Model Voltage MCA MFA
Ssc value (MVA)
(Note2)
AM040*XMDGR
3phase,
380~415V/50Hz
16.1 20 3.9
AM050*XMDGR 16.1 20 3.9
AM060*XMDGR 16.1 20 3.9
(Note2) This equipment complies with IEC 61000-3-12 provided that the short-circuit power Ssc is greater than
or equal to S
sc value at the interface point between the user’s supply and the public system. It is the
responsibility of the installer or user of the equipment to ensure, by consultation with distribution
network operator if necessary, that the equipment is connected only to a supply with a short-circuit
power Ssc greater than or equal to Ssc value.
Tightening power terminal
▶ Connect the cables to the terminal board using the compressed ring terminal.
▶ Use rated cables only.
▶ Connect the cables with driver and wrench that can apply the rated torque to the screws.
▶ Make sure that appropriate tightening torque is applied for cable connection. If the terminal is loose, arc
heat may occur and cause re and if the terminal is connected too rmly, terminal may get damaged.
Tightening torque (kgf•cm)
M4 12.0~18.0
Communication : F1, F2
3 phase AC power: 1(L), 2(N), L, N, L1(R), L2(S), L3(T), N
M5 20.0~30.0 1 phase AC power : 1(L), 2(N), L, N
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 43 2024-01-17 오후 3:57:02
44
Wiring work
Connecting the HR Changer/MCU (MCU-R4NEK0N, MCU-S6NEK3N)
Example
Outdoor
unit
Indoor unit Indoor unit
ELB
ELB
MCCB
MCCB
220-240 V~
▶ Power must be supplied to the HR Changer/MCU separately from the outdoor unit.
▶
Connect the communication cable of the outdoor unit (F1, F2) to the communication cable of the HR Changer/
MCU (F1, F2)
• Power cable connection should be done with the solderless ring terminal.
CAUTION
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Indoor unit
HR
Changer
HR
Changer
• When installing the HR Changer, communication cable can be connected as shown above.
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 44 2024-01-17 오후 3:57:02
45
ENGLISH
Selecting compressed ring terminal
▶ Select a compressed ring terminal of a connecting power cable based on a nominal dimensions for cable.
▶ Cover a compressed ring terminal and a connector part of the power cable and then connect it.
Silver solder
Nominal dimensions for cable (mm
2
) 4/6 10 16 25 35 50 70
Nominal dimensions for screw (mm) 4 8 8 8 8 8 8 8 8 8
B
Standard dimension (mm) 9.5 15 15 16 12 16.5 16 22 22 24
Allowance (mm) ±0.2 ±0.2 ±0.2 ±0.3 ±0.3 ±0.3 ±0.4
D
Standard dimension (mm) 5.6 7.1 9 11.5 13.3 13.5 17. 5
Allowance (mm)
+0.3
-0.2
+0.3
-0.2
+0.3
-0.2
+0.5
-0.2
+0.5
-0.2
+0.5
-0.2
+0.5
-0.4
d1
Standard dimension (mm) 3.4 4.5 5.8 7.7 9.4 11.4 13.3
Allowance (mm) ±0.2 ±0.2 ±0.2 ±0.2 ±0.2 ±0.3 ±0.4
E Min. 6 7.9 9.5 11 12.5 1 7.5 18.5
F Min. 5 9 9 13 15 13 13 14 20
L Max. 20 28.5 30 33 34 38 43 50 51
d2
Standard dimension (mm) 4.3 8.4 8.4 8.4 8.4 8.4 8.4 8.4
Allowance (mm)
+ 0.2
0
+0.4
0
+0.4
0
+0.4
0
+0.4
0
+0.4
0
+0.4
0
+0.4
0
t Min. 0.9 1.15 1.45 1.7 1.8 1.8 2.0
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 45 2024-01-17 오후 3:57:02
46
Wiring work
Installing grounding wire
▶ Grounding must be done by a qualied installer for your safety.
▶ Use the grounding wire by referring to the specication of the electric cable of the outdoor unit.
Grounding the power cable
▶ The standard of grounding may vary according to the rated voltage and installation place of the air
conditioner.
▶ Ground the power cable according to the following.
Installation place
Power condition
High humidity Average humidity Low humidity
Voltage of lower than 150V
Perform the grounding work
3.
Note 1)
Perform the grounding work 3
if possible for your safety.
Note 2)
Voltage of higher than 150V
Must perform the grounding work 3.
Note 1)
(In case of installing circuit breaker as well)
1. Grounding work 3
• Grounding must be done by your installation specialist.
• Check if the grounding resistance is lower than 100Ω. When installing a circuit breaker that can cut
the electric circuit within 0.5 second in case of a short circuit, the allowable grounding resistance
should be 30~500Ω.
2. Grounding at dry place
• The grounding resistance is should be lower than 100Ω. (It should not be higher than 250Ω)
- Use the rated grounding wire by referring to the specication of the electric cable of the outdoor
unit.
NOTE
Performing the grounding work
▶ Use the grounding wire by referring to the specication of the electric cable for the outdoor unit.
When using the terminal for grounding only When using grounding of the switch board
Earth terminal
Switch Board
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 46 2024-01-17 오후 3:57:02
47
ENGLISH
Grounding work
If the power distribution circuit does not have a grounding or the grounding does not comply with
specications, a ground rod must be installed.
The corresponding accessories are not supplied with the air conditioner.
1. Select a grounding rod that complies with the specications given in the illustration.
Compressed ring terminal (Terminal M4)
PVC-insulated green/yellow wire
Copper wire
Carbon rod
2. Select a proper place for the grounding rod installation.
- In damp hard soil rather than loose sandy or gravel soil that has a higher grounding resistance.
- Away from underground structures or facilities, such as gas pipes, water pipes, telephone lines and
underground cables.
- At least two meters away from lightening(as in a storm) conductor.
50cm
30cm
• The grounding wire for the telephone line cannot be used to ground the air conditioner.
CAUTION
3. Install a green/yellow coloured grounding wire :
- Refer to the ‘Wiring work’ for the specication of grounding wire.
- When the grounding wire is too short, extend the grounding wire but bind the connection part with
insulation tape. (Do not bury the connection).
- Secure the grounding wire in position with staples.
• When the grounding rod is installed in a place where many people pass by, you must x it rmly.
CAUTION
4. Carefully check the installation, by measuring the grounding resistance with a ground resistance tester.
- If the resistance is above required level, drive the grounding rod deeper into the ground or increase the
number of grounding rods.
5. Connect the grounding wire to the electrical component box inside of the outdoor unit.
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 47 2024-01-17 오후 3:57:02
48
Charging refrigerant
▶ The R-410A refrigerant is blended refrigerant. Add only liquid refrigerant.
▶ Measure the quantity of the refrigerant according to the length of the liquid side pipe. Add quantity of the
refrigerant using a scale.
Important information: regulation regarding the refrigerant used
This product contains uorinated greenhouse gases. Do not vent gases into the atmosphere.
• Inform user if the system contains 5tCO₂e or more uorinated greenhouse gases. In this case, it
must be checked for leakage at least once every 12 months, according to regulation No. 517/2014.
This activity must be covered by qualied personnel only. In the case of the situation above, the
installer (or authorized person with responsibility for nal check) must provide a maintenance
book, with all the information recorded, according to REGULATION (EU) No. 517/2014 OF THE
EUROPEAN PARLIAMENT AND OF THE COUNCIL of 16 April 2014 on uorinated greenhouse gases.
CAUTION
Please ll in the following with indelible ink on the refrigerant charge label supplied with this product and
on this manual.
▶
: The factory refrigerant charge of the product.
▶
: The additional refrigerant amount charged in the eld.
▶
+ : The total refrigerant charge.
Refrigerant type GWP value
R-410A 2088
• GWP=Global Warming Potential
• Calculating tCO₂e : kg x GWP / 1000
d
Indoor unit
Outdoor unit
a Factory refrigerant charge of the product: see unit name plate.
b Additional refrigerant amount charged in the eld. (Refer to the above information for the
quantity of refrigerant replenishment.)
c Total refrigerant charge.
d Refrigerant cylinder and manifold for charging.
NOTE
• The lled-out label must be adhered in the proximity of the product charging port.
(ex. onto the inside of the stop valve cover.)
CAUTION
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 48 2024-01-17 오후 3:57:02
49
ENGLISH
Charging refrigerant
▶ Open the manifold gauge valve connected to the liquid side service valve and add the liquid refrigerant.
▶ If you cannot add the whole quantity of the refrigerant while the outdoor unit is stopped, open the gas side
and liquid side service valve. Then, add remaining refrigerant by pressing the refrigerant adding button of
the outdoor PCB.
Gas side
Scale
R-410A
(Inject liquid
refrigerant)
Liquid side
Vacuum port
Manifold gage
Service valve
Outdoor unit
• Open the gas side and liquid side service valve completely after charging the refrigerant. (If you
operate the air conditioner with the service valve closed, the important parts may be damaged.)
• Put on safety equipment when charging refrigerant.
• Do not charge the refrigerant when you adjust or control other product such as indoor units or EEV
kits.
• When the ambient temperature is low in winter time, do not heat the refrigerant container to
speed up the charging process. There is risk of explosion.
• Beware for possibility of refrigerant leakage when you connect the manifold gauge to the charging
port for heating.
• Close the valve of the refrigerant container immediately after charging the refrigerant. If not, there
might be a change in entire amount of refrigerant.
CAUTION
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 49 2024-01-17 오후 3:57:02
50
Basic segment display
Step Display content Display
At initial power input Checking segment display
SEG 1 SEG 2 SEG 3 SEG 4
“8” “8” “8” “8”
While setting communication
between indoor and outdoor
unit (Addressing)
Number of connected indoor
units
SEG 1 SEG 2 SEG 3 SEG 4
“A” “d”
Number of communicated
units
※ Refer to "View Mode"
for communication
address
After communication setting
(usual occasion)
MCU, Indoor unit address
SEG 1 SEG 2 SEG 3 SEG 4
I/U: “A”
MCU: “C”
I/U: “0”
MCU: “1”
Reception address
(in decimal number)
※ I/U : Indoor unit, MCU : HR Changer & MCU
Setting outdoor unit option switch and key function
Setting outdoor unit option switches : A TYPE
Terminal blocks (R1, R2) for connection with the Upper Controller
(DMS, Touch, On/Off Controller, etc.)
Do not connect the power and communication wires to these terminal blocks
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 50 2024-01-17 오후 3:57:02
51
ENGLISH
▶ Setting outdoor install option
Step Button Display Description Note
No
Yes
Save (Step 8)
Heat Recovery?
Quantity of HR
Changer/MCUs
(Step 4 ~ 5)
The setting of heat
recovery system
(Step 6 ~7)
Quantity of indoor units
(Step 2 ~ 3)
Start (Step 1)
Quantity of indoor units
Setting required
Step1
Press (K1+K2)
for 2 seconds
Ready to set -
Step2
K2 x n times
X
Tens digit (0 ~ 6)
Ex) 03 : 3 units
10 : 10 units
K4 x n times
X
Ones digit (0 ~
9)
* K4 : Press for 2 seconds - automatic detection of indoor units'
quantity
Step3
If it is heat recovery model, go to step 4.
Otherwise, press K2 button for 2 seconds to save & exit.
(system will be reset)
Quantity of HR Changer and MCUs * Heat recovery model only
Step4 Press K1
Ready to set -
Step5
K2 x n times
X
Tens digit (0 ~ 6)
Ex) 03 : 3 units
10 : 10 units
K4 x n times
X
Ones digit (0 ~
9)
* K4:
Press for 2 seconds - automatic detection of HR Changer and MCUs'
quantity
Step6 Press K1 Ready to set 00 : Heat pump
system
01 : Heat
recovery system
Step7 Press K4
Ones digit (0 ~ 1)
Step8 K2 : long
Save Restart
* Press K1 for 2 seconds to exit without save regardless of setting step.
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 51 2024-01-17 오후 3:57:03
52
Setting outdoor unit option switch and key function
Installing and setting the option with tact switch and explanation of the functions
Setting the option
1. Press and hold K2 to enter the option setting. (Only available when the operation is stopped)
- If you enter the option setting, display will show the following. (If you have set the 'Emergency operation
for compressor malfunction', 1 or 2 will be displayed on Seg 4.)
- Seg 1 and Seg 2 will display the number for selected option.
- Seg 3 and Seg 4 will display the number for set value of the selected option.
2. If you have entered option setting, you can shortly press the K1 switch to adjust the value of the Seg 1, Seg
2 and select the desired option.
Example)
▶
3. If you have selected desired option, you can shortly press the K2 switch to adjust the value of the Seg 3,
Seg 4 and change the function for the selected option.
▶
4. After selecting the function for options, press and hold the K2 switch for 2 seconds. Edited value of the
option will be saved when entire segments blinks and tracking mode begins.
• Edited option will not be saved if you do not end the option setting as explained in above
instruction.
CAUTION
※ While you are setting the option, you may press and hold the K1 button to reset the value to previous
setting.
※ If you want to restore the setting to factory default, press and hold the K4 button while you are in the
option setting mode.
- If you press and hold the K4 button, setting will be restored to factory default but it doesn't mean that
restored setting is saved. Press and hold the K2 button. When the segments shows that tracking mode is
in progress, setting will be saved.
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 52 2024-01-17 오후 3:57:03
53
ENGLISH
Optional item
Input
unit
SEG1 SEG2 SEG3 SEG4 Function of the option Remarks
Unused option Main 0 0 0 0 Unused option Unused option by this model
Cooling
capacity
correction
Main 0 1
0 0 Unused option
Targeted evaporation
temperature [°C].
(When low temperature
value is set, discharged air
temperature of the indoor
unit will decrease)
0 0 7-9
0 1 5-7 (Factory default)
0 2 9-11
0 3 10-12
0 4 11-13
0 5 12-14
0 6 13-15
Capacity
correction for
heating
Main 0 2
0 0 3.0 (Factory default)
Targeted high pressure
[MPa].
(When low pressure value
is set, discharged air
temperature of the indoor
unit will decrease)
※ Unused by the cooling only
models
0 1 2.5
0 2 2.6
0 3 2.7
0 4 2.8
0 5 2.9
0 6 3.1
0 7 3.2
0 8 3.3
Current
restriction rate
Main 0 3
0 0 100% (Factory default)
When restriction option is
set, cooling and heating
performance may decrease.
0 1 95%
0 2 90%
0 3 85%
0 4 80%
0 5 75%
0 6 70%
0 7 65%
0 8 60%
0 9 55%
1 0 50%
1 1 No restriction
Oil collection
interval
Main 0 4
0 0 Factory default
0 1 Shorten the interval by 1/2
Temperature to
trigger defrost
operation
Main 0 5
0 0 Factory default
0 1
Apply setting when the product is
being installed in humid area such
as near river or lake
The defrost option shortens
the starting time of the
defrost operation
※ Unused by the cooling only
models
Fan speed
correction for
outdoor unit
Main 0 6
0 0 Disabled (Factory default)
0 1 Increase fan speed
Increase the outdoor unit’s
fan speed to maximum value
Silent mode for
night-time
Main 0 7
0 0 Disabled (Factory default)
Enables the silent mode for
night-time in cooling mode.
(It operates automatically
depending on the
temperature.)
However, if the external
contact interface
module(MIM-B14) is used,
entering the silent mode is
available with contact signal
in cooling and heating mode.
0 1 LEVEL 1 / Auto
0 2 LEVEL 2 / Auto
0 3 LEVEL 3 / Auto
0 4 LEVEL 1 / External contact
0 5 LEVEL 2 / External contact
0 6 LEVEL 3 / External contact
High-head
condition
setting
Main 0 8
0 0 Disabled (Factory default)
0 1
Level 1 of height difference type 1
(indoor unit is lower than outdoor
unit)
When outdoor unit is located
40~80m above the indoor
unit
0 2 Not applicable
0 3
Height difference type 2 (outdoor
unit is lower than indoor unit)
When indoor unit is over 30m
above the outdoor unit
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 53 2024-01-17 오후 3:57:03
54
Setting outdoor unit option switch and key function
Optional item
Input
unit
SEG1 SEG2 SEG3 SEG4 Function of the option Remarks
Long-pipng
condition
setting
(Setting is
unnecessary
if high-head
condition is set)
Main 0 9
0 0 Disabled (Factory default)
0 1 LEVEL 1
When equivalent length of
farthest indoor unit from the
outdoor unit is over 100m
0 2 Not applicable
Energy saving
setting
Main 1 0
0 0 Disabled (Factory default)
0 1 Energy saving mode
Energy saving mode triggers
when the room temperature
reaches desired temperature
while operating in heating
mode.
0 2 Rapid cooling
This function increases
cooling speed.
Unused option Main 1 1~2 0 0 Unused option Unused option by this model
Channel
address
Main 1 3
A U Automatic setting (factory default) Address for classifying the
product from upper level
controller(DMS,S-NET 3,etc.)
00 ~ 15 Manual setting for channel 0 – 15
Snow
accumulation
prevention
control
Main 1 4
0 0 Enabled
During snow accumulation,
the fan may spin even when
the unit is not in operation
0 1 Disabled (Factory default)
Unused option Main 1 5~7 0 0 Unused option Unused option by this model
Max. capacity
restriction
Main 1 8
0 0 Enabled (Factory default)
Restrict excessive capacity
increase when operating
indoor units with small
capacity
0 1 Disabled
Gas leak pump
down
Main 1 9
0 0 Disabled (Factory default) If the gas leak occurred it
should be entered in the
pump down operation.
0 1 Enabled
Unused option Main 2 0~1 0 0 Unused option Unused option by this model
Emergency
operation for
indoor unit
communication
error
Main 2 2
0 0 Disabled (Factory default)
When set, emergency
operation is possible even
if an indoor communication
error occurs.
0 1
Indoor high humidity condition
(operating for up to 12hours)
0 2
Indoor low humidity condition
(operating for up to 24hours)
Base Heater Main 2 3
0 0 Disabled (Factory default)
0 1 Enabled
Set when Base Heater is
nstalled.
Unused option Main 2 4 0 0 Unused option Unused option by this model
Aux Heater’s
interworking
control for cycle
heating
(cooling priority
control)
Main 2 5
0 0 Not applied (Factory default)
When using the Aux Heater,
set the delay time for
switching from cooling to
heating.
※ Unused by the cooling only
models
0 1
Switching delay to heating (30 mins.)
0 2 Switching delay to heating (15 mins.)
0 3 Switching delay to heating (10 mins.)
0 4 Switching delay to heating (5 mins.)
0 5 No switching delay
Auto Change
Over
Main 2 6
0 0 Not applied (Factory default) With Thermo off for all
running indoor units, change
the operation mode.
※ Unused by the cooling only
models
0 1 Applied
Unused option Main 2 7~8 0 0 Unused option Unused option by this model
View mode
Unit Option
Main 2 9
0 0 ℃ & MPa (Factory default) Converts the temperature,
pressure units in the view
mode (K4 switch)
0 1 ℉ & psi
※ There is a risk of water leakage during emergency operation for indoor unit communication error. Please
be careful when using it.
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 54 2024-01-17 오후 3:57:04
55
ENGLISH
• After installing the product, be sure to perform leak tests on the piping connections. After
pumping down refrigerant to inspect or relocate the outdoor unit, be sure to stop the compressor
and then remove the connected pipes.
- Do not operate the compressor while a valve is open due to refrigerant leakage from a pipe
or an unconnected or incorrectly connected pipe. Failure to do so may cause air to ow into
the compressor and too a high pressure to develop inside the refrigerant circuit, leading to an
explosion or product malfunction.
WARNING
Setting key operation and checking the view mode with tact switch
K1 Control KEY operation Display on segment
Press and hold 1 time Auto trial operation “K” ”K” “BLANK” “BLANK”
K1(Number of press) KEY operation Display on segment
1 time Refrigerant charging in Heating mode
(Note 1)
“K” ”1” “BLANK” “BLANK”
2 times Trial operation in Heating mode
(Note 1)
“K” ”2” “BLANK” “BLANK”
3 times Pump out in Heating mode
(Note 1)
“K” ”3” “BLANK” “1”
4 times Vacuuming “K” ”4” “BLANK” “1”
5 times End Key operation —
K2(Number of press) KEY operation Display on segment
1 time Refrigerant charging in Cooling mode “K” ”5” “BLANK” “BLANK”
2 times Trial operation in Cooling mode “K” ”6” “BLANK” “BLANK”
3 times Pump down in Cooling mode “K” ”7” “BLANK” “BLANK”
4 times
Automatic setting of operation mode
(Cooling/Heating) for trial operation
“K” ”8” “BLANK” “BLANK”
5 times Checking the amount of refrigerant
“K” “9” “X” “X”
(Display of last two digits may differ
depending on the progress)
6 times Discharge mode of DC link voltage “K” ”A” “BLANK” “BLANK”
7 times Forced defrost operation
“K” ”B” “BLANK” “BLANK”
8 times Forced oil collection “K” ”C” “BLANK” “BLANK”
9 times Inverter compressor check “K” ”D” “BLANK” “BLANK”
10 times
H/R : Auto pipe pairing
H/P : Unused
“K” ”H” “X” “X”
(Display of last two digits may differ
depending on the progress)
11 times End Key operation —
※ Even when the outdoor unit power is off, it is dangerous when you come in contact with inverter PCB since
it is charged with high DC voltage.
※ When replacing/repairing the PCB, cut-off the power and wait until the DC voltage is discharged before
replacing/repairing them. (Wait for more than 15 minutes to allow it to discharge naturally.)
※ When there were error, 'Discharge mode of DC link voltage' may not have been effective. Especially if
error E464 has been occurred, power element might be damaged by re and therefore, do not use the
'Discharge mode of DC link voltage'.
※ During "Discharge mode of DC link voltage", voltage of INV will be displayed.
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 55 2024-01-17 오후 3:57:04
56
Setting outdoor unit option switch and key function
K3(Number of press) KEY operation Display on segment
1 time Initialize (Reset) setting Same as initial state
K4 (Number
of press)
KEY operation
Display on segment
SEG 1 SEG2, 3, 4
1 time Outdoor unit Capacity (HP) 1 6HP → 0, 0, 6
2 times Order frequency of compressor 2 120 Hz → 1, 2, 0
3 times High pressure 3 1.52 MPa → 1, 5, 2 / 220 psi → 2, 2, 0
4 times Low pressure 4 0.43 MPa → 0, 4, 3 / 62 psi → 0, 6, 2
5 times
Discharge temperature of
compressor
5 87 ℃→ 0, 8, 7 / 189 ℉ → 1, 8, 9
6 times IPM temperature of compressor 6 87 ℃→ 0, 8, 7 / 189 ℉ → 1, 8, 9
7 times CT sensor value of compressor 7 2 A → 0, 2, 0
8 times Suction temperature 8 -42 ℃→ -, 4, 2 / -44 ℉ → -, 4, 4
9 times COND OUT temperature 9 -42 ℃→ -, 4, 2 / -44 ℉ → -, 4, 4
10 times Liquid pipe temperature A 87 ℃→ 0, 8, 7 / 189 ℉ → 1, 8, 9
11 times TOP temperature of compressor B 87 ℃→ 0, 8, 7 / 189 ℉ → 1, 8, 9
12 times Outdoor temperature C -42 ℃→ -, 4, 2 / -44 ℉ → -, 4, 4
13 times EVI inlet temperature D -42 ℃→ -, 4, 2 / -44 ℉ → -, 4, 4
14 times EVI outlet temperature E -42 ℃→ -, 4, 2 / -44 ℉ → -, 4, 4
15 times Main EEV step F 2000 steps → 2, 0, 0
16 times EVIEEV step G 300 steps → 3, 0, 0
17 times Fan step H 13 steps → 0, 1, 3
18 times Current frequency of compressor I 120 Hz → 1,2,0
19 times
Master indoor unit address
(Master indoor unit can be selected
by wired remote-controller)
J
Master indoor unit not selected → BLANK, N, D
If indoor unit No.1 is selected as the master unit → 0, 0, 1
20 times MCU Bypass EEV Step K 300 steps → 3, 0, 0
21 times End Key operation - -
K4 (Press and hold for 2
seconds to enter the setting)
→ K4 press (Number of press)
Displayed content
Display on segment
Page 1 Page 2
1 time Main version MAIN Ver. (ex) 1412)
2 times Inverter version INV1 Ver. (ex) 1412)
3 times EEP version EEP Ver. (ex) 1412)
4 times
Assigned address of
the units
AUTO
SEG 1,2 SEG 3,4
Indoor unit: “A" , "0"
HR Changer/MCU Unit
: “C”, “1”
Address (ex) 07)
5 times
Manually assigned
address of the units
MANU
SEG 1,2 SEG 3,4
Indoor unit: “A" , "0" Address (ex) 15)
Press and hold (for 2 sec.) Key operation ends -
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 56 2024-01-17 오후 3:57:04
57
ENGLISH
Setting the HR Changer/MCU and Pipe Addresses (for HR Only)
You can set the HR Changer/MCU address, the HR Changer/MCU ports to use, and the address for each HR
Changer/MCU port connected to each indoor unit.
Setting the HR Changer/MCU address and the HR Changer/MCU ports to use
You can set the HR Changer/MCU address and the HR Changer/MCU ports on the HR Changer/MCU PBA.
1
ON
2 3 41
ON
2
A B C D
3 4 1
ON
2
E F
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
A B C D E F
MCU address
switch
DIP switch
S/W option DIP
switch
1. Set the HR Changer/MCU address switch to a value. If two or more HR Changer/MCUs are installed, be
sure to set a unique value for each HR Changer/MCU. For the HR Changer/MCU address, you can set a
value from 0 to 15.
2. For each HR Changer/MCU ports that are connected to an indoor unit through piping, set their DIP switch
to ON. For other HR Changer/MCU ports, set their DIP switches to OFF.
You can nd the address (A to F) of an HR Changer/MCU port on the indoor unit piping connection.
3. If two HR Changer/MCU ports are connected to an indoor unit through a Y-joint, set the relevant S/W
option DIP switch to the settings given in the following table:
S/W option DIP switch No. ON (Individual connection) OFF (Shared connection)
1 Each of ports A and B Both ports A and B
2 Each of ports C and D Both ports C and D
3 Each of ports E and F Both ports E and F
※ You cannot make a shared connection for the two ports B and C, and D and E at the same time.
A B C D E F
A B C D E F
4. Set the address of each HR Changer/MCU port that is connected to an indoor unit by taking the
procedures in Setting the Pipe Addresses Manually or Setting the Pipe Addresses Automatically. (Auto
pipe pairing operation)
• If the following models are connected, set the pipe addresses manually by referring to Setting the
Pipe Addresses Manually.
- AHU kit (MXD-K***AN)
CAUTION
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 57 2024-01-17 오후 3:57:04
58
Setting the HR Changer/MCU and Pipe Addresses (for HR Only)
Setting the Pipe Addresses Manually
You can use the wired or wireless remote control or the S-NET Pro 2 to set the pipe addresses for each indoor unit.
Setting by using the wired or wireless remote control (For how to operate the remote
control buttons, see the remote control user manual.)
1. Turn on both the indoor unit and the remote control.
2. Enter the “Option setting mode” on the remote control.
3. Set the address of each HR Changer/MCU port that is connected to an indoor unit by referring to the
following table. (You can also set the address of each indoor unit.)
Option SEG1 SEG2 SEG3 SEG4 SEG5 SEG6
Value
0
A: Address setting
mode
0: The address of
the indoor unit
will not be set.
1: The address of
the indoor unit
will be set.
0 to 9: Hundreds
digit of the indoor
unit address
0 to 9: Tens digit
of the indoor unit
address
0 to 9: Units digit
of the indoor unit
address
Option SEG7 SEG8 SEG9 SEG10 SEG11 SEG12
Value
1 0
0: The RMC address
will not be set.
1: The RMC address
will be set.
0
0 to F: RMC group
channel
0 to F: RMC group
address
Option SEG13 SEG14 SEG15 SEG16 SEG17 SEG18
Value
2 0
0: The HR
Changer/MCU
address will not
be set.
1: The HR
Changer/MCU
address will be
set.
0 to 1: Tens digit of
the HR Changer/
MCU address
0 to 9: Units
digit of the HR
Changer/MCU
address
A to F: HR
Changer/MCU
port address
Option SEG19 SEG20 SEG21 SEG22 SEG23 SEG24
Value
3 0 0 0 0 0
Examples> If the indoor unit whose address is not yet set is connected to port A on the HR Changer/MCU 1,
set 0A0000-100000-20101A-300000.
If the indoor unit whose address is set to 9 is connected to port B on the HR Changer/MCU 2, set 0A1009-
100000-20102B-300000.
Setting by using S-NET Pro 2
▶ Set the pipe addresses by using Add-on > Change address on S-NET Pro 2. (For more information, see the
S-NET Pro 2 Help.)
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 58 2024-01-17 오후 3:57:04
59
ENGLISH
Setting the Pipe Addresses Automatically (Auto pipe pairing operation)
You can use the Automatic pipe-address setting operation to automatically set the address of each HR
Changer/MCU port that is connected to an indoor unit.
If an HR Changer/MCU port is set incorrectly or a pipe between an HR Changer/MCU and an indoor unit is
connected incorrectly, that indoor unit is indicated.
Check items before running the Auto pipe pairing operation
1. Ensure that the service valve of the outdoor unit is open.
2. Ensure that the power cables and communication cables of the indoor and outdoor units are correctly
connected.
3. Turn on the indoor and outdoor units 6 hours before running the Automatic pipe-address setting operation
to warm up both units sufciently.
4. Before turning on the power, check whether the voltages and phases are correct by using a voltmeter and
a phase tester.
5. After the power is turn on, set the devices (indoor unit, HR Changer/MCU, and others) that are connected
to the outdoor unit, and set the options.
Note that, before the HR Changer/MCU port addresses are set, HR Changer/MCU port setting errors (E216,
217, 218) may occur. You can run the Automatic pipe-address setting operation regardless of HR Changer/
MCU port setting errors.
6. If AHU Kit unit is connected, set the pipe addresses manually referring to [Setting the Pipe Addresses
Manually].
7. Check the operating temperature for the Automatic pipe-address setting operation:
If this operation is run at a temperature out of the operating temperature range, the addresses set
automatically may be incorrect. Set the pipe addresses manually by referring to Setting the Pipe Addresses
Manually.
8. Auto pipe-pairing operation does not work within 3 minutes after power on and reset due to
communication check.
[Operating temperature for the Auto pipe pairing operation]
45
24
-10
10 24 32
30
Outdoor Temperature (°C)
Indoor Temperature (°C)
Main cooling operation
Main heating operation
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 59 2024-01-17 오후 3:57:04
60
Setting the HR Changer/MCU and Pipe Addresses (for HR Only)
To run the Auto pipe pairing operation, take the following steps:
1. Press the K2 button 10 times on the main PBA of the outdoor unit to start the Auto pipe pairing operation.
(Display :
.)
Outdoor temperature < 24°C
24
°C
≤ Outdoor temperature < 30
°C 30°C ≤ Outdoor temperature
Indoor temperature
< 24°C
Main heating operation Main heating operation Main cooling operation
Indoor temperature
≥ 24°C
Main heating operation Main cooling operation Main cooling operation
Each step is indicated on the outdoor unit display. (The whole operation takes about 25 to 55minutes
normally, depending on the number of indoor units connected. However, it can be operated for up to 2
hours to protect the compressor.)
- Step 1 (Start )
→
Steps 2 to 8 (Setup )
→
Step 9 (Check )
→
Step 10 (Conrmation )
2. When the Auto pipe pairing operation nishes, the following data is shown on the outdoor unit display.
Result Outdoor unit display Description
Setting completed End
Setting error
E191
Indoor unit data
(displayed alternately)
Indoor unit data
- SEG 1,2 = indoor unit address / SEG 3,4 = error status
00: An HR Changer/MCU
port is not disabled, or a
pipe is not connected.
01: Cooling only indoor
unit is connected to HR
Changer/MCU.
02: The shared setting for
two ports is incorrect.
Example) When the HR Changer/MCU port connected to
the indoor unit 12 is disabled, E191 and 1200 are
displayed alternately
- If two or more indoor units have setting errors, the data about
the next indoor unit is displayed each time you press the K2
switch.
• If the MCU ports to use are set incorrectly, the Auto pipe pairing operation may stop due to high-pressure
or low-pressure protection control or the data about the indoor unit that has a MCU port setting error
may be incorrect. Ensure that the MCU ports to use are set correctly.
• Depending on the indoor and outdoor temperatures, the Auto pipe pairing operation may stop due to
protection control.
• If an error occurs while the Auto pipe pairing operation is running, check the error code and take actions.
• If you cannot nish the Auto pipe pairing operation because of the previous reasons, set the pipe
addresses manually by referring to Setting the Pipe Addresses Manually.
CAUTION
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 60 2024-01-17 오후 3:57:04
61
ENGLISH
Inspection and check operation
Precautions before check operation
• When the outdoor temperature is low, turn on the main power 3 hours before beginning the
operation.
- If you start the operation immediately after turning on the main power, it may cause serious
damage to the part within the product.
• Do not touch the refrigerant pipe during or right after the operation.
- Refrigerant pipe may be hot or cold during or right after the operation depending on the status
of the refrigerant which ows through the refrigerant pipe, compressor and other parts of the
refrigerant cycle. If you touch the refrigerant during or right after the operation, you may get
burns or frostbite.
• Do not operate the product with its panel or protection nets off.
- There is risk of personal injury from the parts that rotates, heated or with the high voltage.
• Do not turn off the main power immediately after stopping the operation.
- Wait for at least 5 minutes before turning off the main power. If not, water leakage or other
problems may occur.
• Connect all the indoor units and the power supply for the outdoor unit and run auto or manual
address setting. Run auto or manual address setting after changing the indoor unit PCB.
CAUTION
Inspection before check operation
1. Check the power cable and communication cable of the indoor and outdoor unit.
2. Supply power to the outdoor unit 3 hours before check operation to preheat the compressor.
3. Before supplying the power, use a voltmeter and phase tester to check the voltage and the phase.
- R,S,T terminal: check the 380 V ~ 415 V between wires (R-S, S-T, T-R) / 220V~240V between wires (L-N).
4. When the power is supplied, outdoor unit will execute tracking to check the indoor unit connection and
other options.
5. Write down the installation report on the service history report paper attached on the front part of the
control box.
6. Guaranteed range of check operation
For correct judgment, you must perform check operation in below indoor/outdoor temperature condition.
50
40
30
20
10
0
-10
-20
5 10 15 20 25 30 35 40 45
Indoor temperature (°C)
Cooling
Heating
Outdoor temperature (°C)
- Check operation selects and operates cooling/heating mode automatically.
- In the temperature range marked with slashed pattern, system protection control may trigger during
operation.(It may be hard to judge the check operation correctly due to protection control operation.)
- When the temperature is outside of guaranteed range, accuracy of judgment on check operation may
decrease near boarder line area.Inspection and check operation.
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 61 2024-01-17 오후 3:57:04
62
Inspection and check operation
Check operation
1. Use KEY MODE to run check operation.
- When the check operation is not completed, UP (unprepared) will appear on the LED after the
communication check and restrict compressor from operating. (UP Mode will be cleared automatically
when check operation is completed.)
- Check operation may proceed from 30 minutes maximum 50 minutes depending on the operation
status.
- During check operation, noise can be generated due to valve inspection. (Check the product if abnormal
noise occurs continuously)
2. When error occurs during check operation, check the error code and take appropriate measures.
- Refer to service manual if you need inspection or when other errors occur.
3. When check operation ends, use S-NET pro 2 or S-CHECKER to issue a result report.
- Refer to service manual for further actions if you have any items with “inspection required” sign on the
result report.
- After taking appropriate measure for the items with “inspection needed” sign, run the check operation
again.
4. Check the following items by running (cooling/heating) trial operation.
- Check if cooling/heating operation performs normally.
- Individual indoor unit control: Check for air ow direction and fan speed.
- Check for abnormal operation noise from the indoor and outdoor unit.
- Check for proper draining from the indoor unit during cooling operation.
- Use S-NET pro 2 to check the detail operation status.
5. Explain to the user how to use the air conditioner according to the user’s manual.
6. Hand over the installation manual to the customer so they can keep it with them.
Automatic refrigerant amount detection function (Checking th amount of refrigerant)
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 62 2024-01-17 오후 3:57:04
63
ENGLISH
Checking lists after nishing installation
▶ Before supplying power, measure the power terminal (L, N) and outdoor unit grounding using insulation-
resistance tester.
- The measured value should be above 30MΩ.
• You must not measure the communication terminal since the communication circuit may get
damaged.
• Check the short circuit using a circuit tester.
CAUTION
Installation
Outdoor unit
• Have you secured air discharge prole at the bottom of service cover?
• Have you checked the external surface and the inside of the outdoor
unit?
• Is there any possibility of short circuit due to the heat of an outdoor
unit?
• Is the place well-ventilated and ensures space for service?
• Is the outdoor unit xed securely?
Indoor unit
• Have you checked the external surface and the inside of the indoor
unit?
• Is the place well-ventilated and has enough space been allowed for
service?
• Have you checked if the center of the indoor unit is ensured and it is
installed horizontally?
Refrigerant pipe work
• Have you selected correct pipes?
• Are the liquid and gas valve open?
• Is the total number of connecting indoor units within the allowable
range?
• Are the length and the height difference between the refrigerant
pipes within the allowable range?
• Is the refrigerant Y-joint properly installed?
• Has the connection of liquid and gas pipes been correctly performed?
• Have you chosen correct insulation for pipes and have you insulated
them correctly?
• Is the pipe or connection part properly insulated?
• Is the quantity of the additional refrigerant correctly weighed in? (You
must record the amount of additional refrigerant charging on the
service record paper placed outside the outdoor unit.)
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 63 2024-01-17 오후 3:57:04
64
Checking lists after nishing installation
Installing the drain pipe
• Have you checked whether the drain pipes of the indoor unit and
outdoor unit are connected together?
• Have you completed the drain test?
• Is the drain pipe properly insulated?
Wiring work
• Are the power cable and communication cable tightened rmly on the
terminal board within the range of rated tightening torque?
• Have you performed the earthing work 3 to the outdoor unit?
• Is 2-core cable used for the communication cable?
• Is the length of the wire is in the limited range?
• Is the wiring route correct?
Setting ADDRESS
• Are the ADDRESSES of the indoor and outdoor units properly set?
• Are the ADDRESSES of the remote controller properly set?
(When using multiple remote controllers)
Option
• Have you checked whether the vibration-resistance frame is correctly
installed if there is a possible vibration of the outdoor unit.
Trial operation
▶ Check the power supply between the outdoor unit and the cabinet panel.
- 1 phase power supply : L, N
- 3 phase power supply: R, S, T, N
▶ Check the indoor unit.
- Check whether you have connected the power and communication cables correctly.
(The communication cables between an indoor unit and outdoor unit are F1, F2.)
- Check the thermistor sensor, drain pump/hose, and display are connected correctly.
▶ Check with Key mode or S-NET pro 2.
- At rst, operate all the indoor units with Key mode and operate the indoor units individually with S-Net
Pro.
- In the beginning of operation, check the compressor operation sound. If there is a boom sound, stop the
trial operation.
▶ Check the operation status of indoor and outdoor unit.
- Check whether the cooling operation is done correctly.
- Check the individual indoor unit control, wind velocity, and wind ow direction.
- Check whether you can hear abnormal sound from indoor unit and outdoor unit.
- Check whether the drainage is done correctly in cooling.
- Check S-net Pro for detailed operation.
▶ Explain to the user the usage of the air conditioner by referring to the users manual.
• Turn on the outdoor unit 3 hours before the test operation to preheat the compressor.
CAUTION
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 64 2024-01-17 오후 3:57:04
65
ENGLISH
Trial operation
Writing and keeping installation checking card
▶ Installation checking card is enclosed with the installation manual.
- Installer should ll out the front side of the card meticulously.
- Write basic information such as date of installation, name of an installer, contact information,
supervision company etc.
- Write additional information such as the name of outdoor unit models, unusual, calculation of the
additional amount of refrigerant etc.
- Write indoor unit related information such as indoor unit installation location, indoor unit model name
etc.
▶ Keep the installation checking card in a designated place and do not lose it.
Installation checking
card
Product Information
Type Model Net weight (kg) Net size (W × H × D, mm)
Outdoor unit
AM040*XMDER 97 940 × 1,210 × 330
AM050*XMDER 97 940 × 1,210 × 330
AM060*XMDER 100 940 × 1,210 × 330
AM040*XMDGR 95 940 × 1,210 × 330
AM050*XMDGR 95 940 × 1,210 × 330
AM060*XMDGR 98 940 × 1,210 × 330
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 65 2024-01-17 오후 3:57:05
Samsung, PO Box 12987, Blackrock, Co. Dublin. IE
or Euro QA Lab. Saxony Way, Yateley, Hampshire GU46 6GG, UK
DB68-07745A-08_IM_DVM S ECO HR_EU_EN_.indd 66 2024-01-17 오후 3:57:05
