Samsung | AE080RXYDGG/EU | User manual | Samsung AE080RXYDGG/EU User manual

Samsung AE080RXYDGG/EU User manual
Air to Water Heat Pump
Installation manual
Outdoor Unit AE***RXEDEG / AE***RXEDGG
• Thank you for purchasing this Samsung Product.
• Before operating this unit, please read this installation manual carefully and retain it for future
reference.
Contents
PREPARATION
Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Product specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
INSTALLATION
Outdoor unit specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Main components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Installing the unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Connecting the cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Refrigerant piping work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Checking correct grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Setting the option switch and function of the keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Pump down procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Completing the installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Final checks and trial operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
OTHERS
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
ENGLISH-2
Safety precautions
Carefully follow the precautions listed as below because they are essential to guarantee the safety of SAMSUNG product.
fCarefully read the content of this manual before installing the air to water heat pump and store the manual in a safe place
in order to be able to use it as reference after installation.
fFor maximum safety, installers should always carefully read the following warnings.
fStore the operation and installation manual in a safe location and remember to hand it over to the new owner if the Air to
Water Heat pump is sold or transferred.
fStore the user and installation manual in a safe location and remember to hand it over to the new owner if the air to
water heat pump is sold or transferred.
fThis manual explains how to install Air-Water Heat Pump. 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.
fThe manufacturer shall not be responsible for damage originating from unauthorized changes or the improper
connection of electric and hydraulic lines. Failure to comply with these instructions or to comply with the requirements
set forth in the “Operating limits” table, included in the manual, shall immediately invalidate the warranty.
fFailure to comply with these instructions or to comply with the requirement on the Operating Range (Heat : -25~35 °C/
Cool: 10~46 °C) set forth in the Product Specification (p.6) shall immediately invalidate the warranty.
fDo not use the units if you see some damages on the units and recognize something bad such as loud noisy, smell of
burning.
fIn order to prevent electric shocks, fires or injuries, always stop the unit, disable the protection switch and contact
SAMSUNG’s technical support if the unit produces smoke, if the power cable is hot or damaged or if the unit is very noisy.
fAlways remember to inspect the unit, electric connections, refrigerant tubes and protections regularly. These operations
shall be performed by qualified personnel only.
fThe unit contains moving parts and electrical parts, which should always be kept out of the reach of children.
fDo not attempt to repair, move, alter or reinstall the unit by unauthorized personnel, these operations may cause product
damage, electric shocks and fires.
fDo not place containers with liquids or other objects on the unit.
fAll the materials used for the manufacture and packaging of the air to water heat pump are recyclable.
fThe packing material and exhaust batteries of the remote controller(optional) must be disposed of in accordance with
local regulations.
fThe air to water heat pump contains a refrigerant that has to be disposed of as special waste. At the end of its life cycle,
the heat pump must be disposed of in authorized centers or returned to the retailer so that it can be disposed of correctly
and safely.
fWear protective gloves to unpack, move, install, and service the unit to avoid your hands being injured by the edge of the
parts.
fDo not touch the internal parts (water pipes, refrigerant pipes, heat exchangers, etc) while running the units. And if you
need to adjust and touch the units, have enough time for the unit can be cooled and be sure to wear protective gloves.
fIn case of refrigerant leakage, try to avoid getting in contact with the refrigerant because this could result in severe
wounds.
ENGLISH-3
PREPARATION
Warning
01
WARNING
• Always disconnect a power supply of Air-Water Heat Pump before servicing it or
accessing components inside the unit.
• Verify that installation and testing operations shall be performed by qualified personnel.
• To prevent serious damage on the system and injuries to users, precautions and other
notices shall be observed.
Safety precautions
fWhen you install the Air to water heat pump in a small room, you must consider a proper ventilation to prevent a leakage
level within the maximum permissible limit.
- In that case, you may die from suffocation by some possibility.
fMake sure to safely dispose of packing materials. Packing materials, such as nails and other metal or wooden pallets may
cause children get injured.
fInspect the product shipped and check if damaged during transport. If the product has some damages, DO NOT INSTALL
and immediately discuss about the damages with the carrier or retailer (if the installer or the authorized technician has
collected the material from the retailer.)
fOur units shall be installed in compliance with the spaces described in the installation manual, to ensure accessibility
from both sides and allow repairs or maintenance operations to be carried out. If the units installed without complying
with procedures described in manual, additional expenses can be asked because special harnesses, ladders, scaffolding
or any other elevation system for repair service will NOT be considered part of the warranty and will be charged to the
end customer.
fAlways make sure that the power supply is compliant with local safety standards.
fVerify that the voltage and frequency of the power supply comply with the specifications and input power is sufficient to
ensure the operation of any other domestic appliance connected to the same electric lines. Always verify that the cut-off
and protection switches are suitably selected.
fAlways verify that electric connections (cable entry, section of leads, protections…) are compliant with the electric
specifications and with the instructions provided in the wiring scheme. Always verify that all connections comply with
the standards applicable to the installation of air to water heat pumps. Devices disconnected from the power supply
should be completely disconnected in the condition of overvoltage category.
fDo not connect the earth wire to the gas pipe or water pipe, lighting rod, surge absorber, or telephone earth wire. If
earthing is not complete, it may cause an electric shock or fire.
fBe sure to install both an earth leakage detector and circuit breaker with specified capacity in accordance with relevant
local and national regulations.
- If it is not installed properly, it may cause electric shocks and fire.
fMake sure that the condensed water runs well out of the unit at low ambient temperature. Drain pipe and cond heater
can frost/ice can not grow. If drain work is not effective for releasing condensed water, it can make the units get damaged
by massive ice and system can be stop , covered by ice.
fInstall the power cable and communication cable of the indoor and outdoor unit at least 1 m away from the electric
appliance.
fProtect the unit from rats or small animals. If an animal makes a contact with the electric parts, it can cause malfunctions,
smoke or fire. Please instruct the customer to keep the area around the unit clean.
fDo not disassemble and alter the heater at your own discretion.
fThis 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.
fFor 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.
fBe sure not to perform power cable modification, extension wiring, and multiple wire connection.
- It may cause electric shock or fire due to poor connection, poor insulation, or current limit override.
- When extension wiring is required due to power line damage, refer to "How to connect your extended power cables" in
the installation manual.
fDo not use means to accelerate the defrost operation or to clean, other than those recommended by Samsung.
fDo not pierce or burn.
fBe aware that refrigerants may not contain an odour.
ENGLISH-4
Product specifications
Product line-up
Line-up
Remark
01
Chassis
-
Model name
AE090RXEDEG
AE090RXEDGG
Accessories
fKeep supplied accessories until the installation is finished.
fHand the installation manual over to the customer after finishing installation.
fThe quantities are indicated in parentheses.
fThe base heater inside outdoor unit works in accordance with the weather of outdoor.
Installation manual (2)
Drain plug (1)
Rubber Leg(4)
ENGLISH-5
Drain cap (3)
PREPARATION
Heat pump units
Outdoor unit specification
Type
Unit
AE090RXEDEG
1P, 220~240 VAC 50 Hz
Power source
-
Weight (net/gross)
kg
73.0/81.5
Size (WxHxD, net)
mm
940 x 998 x 330
Noise
(Heat/Cool, Pressure)
dBA
49/49
Operating Range (Heat/Cool)
°C
-25~35/10~46
Refrigerant
g
1,400 (R-32)
Type
Unit
AE090RXEDGG
Power source
-
3P, 380~415 VAC 50 Hz
Weight (net/gross)
kg
72.0/80.5
Size (WxHxD, net)
mm
940 x 998 x 330
Noise
(Heat/Cool, Pressure)
dBA
49/49
Operating Range (Heat/Cool)
°C
-25~35/10~46
Refrigerant
g
1,400 (R-32)
❋ At the temperature -25 °C ~ -20 °C, operation is available but capacity cannot be guaranteed.
ENGLISH-6
Main components
Dimensions(Overall)
Heat pump for R-32.
02
1-Fan chassis
360
330
998
973
940
ENGLISH-7
384
(Unit : mm)
620
INSTALLATION
fAE090RXED**
Installing the unit
Deciding on where to install the outdoor unit
Decide the installation location regarding the following condition and obtain the user’s approval.
fThe outdoor unit must not be placed on its side or upside down, as the compressor lubrication oil will run into the cooling
circuit and seriously damage the unit.
fChoose a location that is dry and sunny, but not exposed to direct sunlight or strong winds.
fDo not block any passageways or thoroughfares.
fChoose a location where the noise of the Air to Water Heat Pump when running and the discharged air do not disturb
any neighbours.
fChoose a position that enables the pipes and cables to be easily connected to the other hydrauric system.
fInstall the outdoor unit on a flat, stable surface that can support its weight and does not generate any unnecessary noise
and vibration.
fPosition the outdoor unit so that the air flow directly stream towards the open area.
fPlace the outdoor unit where there are no plants and animals because they may cause malfunction of outdoor unit.
fMaintain sufficient clearance around the outdoor unit, especially from a radio, computer, stereo system, etc.
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 sufficiently washed out.
3. Because the residual water at the bottom of the outdoor unit significantly promotes corrosion,
make sure that the slope does not disturb drainage.
- Keep the floor 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.
Sea breeze
Outdoor
unit
Sea
ENGLISH-8
Protection wall
Sea breeze
Outdoor
unit
Outdoor
unit
Sea breeze
Sea
CAUTION
• Depending on the condition of power supply, unstable power or voltage may cause malfunction of the parts or
control system. (At the ship or places using power supply from electric generator, etc).
fDo not install the Air to Water Heat Pump in following places.
• The place where there is mineral oil or arsenic acid. There is a chance that parts may get damaged due to burned resin.
The capacity of the heat exchanger may reduce or the Air to Water Heat pump may be out of order.
• The place where corrosive gas such as sulfurous acid gas generates from the vent pipe or air outlet. The copper pipe or
connection pipe may corrode and refrigerant may leak.
• The place where there is a danger of existing combustible gas, carbon fiber or flammable dust. The place where thinner
or gasoline is handled.
CAUTION
• This device must be installed according to the national electrical rules.
• With an outdoor unit having net weight upper than 60 kg, we suggest do not install it suspended on wall, but
considering floor standing one.
fIf the outdoor unit is installed at a height, ensure that its base is firmly fixed in position.
fMake sure that the water dripping from the drain hose runs away correctly and safely.
fWhen you install the outdoor unit at wayside, you should install it above 2 m height or make sure that the heat from the outdoor
unit shouldn't be in direct contact with passersby. (The ground for application :The revision of regulation for facility in building by
the law of the Ministry of Construction and Transportation.
fWhile in installation or relocation of the product, do not mix the refrigerant with other gases including air or unspecified refrigerant.
Failure to do so may cause pressure increase to result in rupture or injury.
fDo not cut or burn the refrigerant container or pipings.
fUse clean parts such as manifold gauge, vacuum pump, and charging hose for the refrigerant.
fInstallation must be carried out by qualified personnel for handling the refrigerant. Additionally, reference the regulations and laws.
fBe careful not to let foreign substances (lubricating oil, refrigerant other than R-32, water, etc.) enter the pipings.
fWhen mechanical ventilation is required, ventilation openings shall be kept clear of obstruction.
fFor disposal of the product, follow the local laws and regulations.
fDo not work in a confined place.
fThe work area shall be blocked.
fThe refrigerant pipings shall be installed in the position where there are no substances that may result in corrosion.
fThe following checks shall be performed for installation:
- The ventilation devices and outlets are operating normally and are not obstructed.
- Markings and signs on the equipment shall be visible and legible.
fUpon leakage of the refrigerant, ventilate the room. When the leaked refrigerant is exposed to flame, it may cause generation of
toxic gases.
fMake sure that the work area is safe from flammable substances.
fTo purge air in the refrigerant, be sure to use a vacuum pump.
ENGLISH-9
INSTALLATION
Protection wall should be constructed with a solid material that
can block the sea breeze and the height and width of the wall
should be 1.5 times larger than the size of the outdoor unit. (You
must secure more than 700mm of space between the protection
wall and the outdoor unit for air circulation.)
02
Sea
Installing the unit
fNote that the refrigerant has no odour.
fThe units are not explosion proof so they must be installed with no risk of explosion.
fThis product contains fluorinated gases that contribute to global greenhouse effect. Accordingly, do not vent gases into the
atmosphere.
fFor installation with handling the refrigerant(R-32), use dedicated tools and piping materials.
fServicing and installation shall be performed as recommended by the manufacturer. In case other skilled persons are
joined for servicing, it shall be carried out under supervision of the person who is competent in handling flammable
refrigerants.
fFor servicing the units containing flammable refrigerants, safety checks are required to minimise the risk of ignition.
fServicing shall be performed following the controlled procedure to minimize the risk of flammable refrigerant or gases.
fDo not install where there is a risk of combustible gas leakage.
fDo not place heat sources.
fBe cautious not to generate a spark as follows:
- Do not remove the fuses with power on.
- Do not disconnect the power plug from the wall outlet with power on.
- It is recommended to locate the outlet in a high position. Place the cords so that they are not tangled.
fIf the indoor unit is not R-32 compatible, an error signal appears and the unit will not operate.
fAfter installation, check for leakage. Toxic gas may be generated and if it comes into contact with an ignition source such
as fan heater, stove, and cooker. cylinders, make sure that only the refrigerant recovery cylinders are used.
fNever directly touch any accidental leaking refrigerant.
fThis could result in severe wounds caused by frostbite.
Preparation of fire extinguisher
fIf a hot work is to be done, an appropriate fire extinguishing equipment should have been available.
fA dry powder or CO2 fire extinguisher shall be equipped near the charging area.
ENGLISH-10
Ignition sources free
Leakage detection methods
fThe leakage detector shall be calibrated in a refrigerant-free area.
fMake sure that the detector is not a potential source of ignition.
fThe leakage detector shall be set to the LFL (lower flammability limit).
fThe use of detergents containing chlorine shall be avoided for cleaning because the chlorine may react with the
refrigerant and corrode the pipings.
fIf leakage is suspected, naked flames shall be removed.
fIf a leakage is found while in brazing, the entire refrigerant shall be recovered from the product or isolated (e.g. using
shut-off valves). It shall not be directly released to the environment. Oxygen free nitrogen (OFN) shall be used for purging
the system before and during the brazing process.
fThe work area shall be checked with an appropriate refrigerant detector before and during work.
fEnsure that the leakage detector is appropriate for use with flammable refrigerants.
Labelling
fThe parts shall be labelled to ensure that they have been decommissioned and emptied of refrigerant.
fThe labels shall be dated.
fMake sure that the labels are affixed on the system to notify it contains flammable refrigerant.
ENGLISH-11
INSTALLATION
Area ventilation
fMake sure that the work area is well ventilated before performing a hot work.
fVentilation shall be made even during the work.
fThe ventilation should safely disperse any released gases and preferably expel them into the atmosphere.
fVentilation shall be made even during the work.
02
fMake sure to store the units in a place without continuously operating ignition sources (for example, open flames, an
operating gas appliance or an operating electric heater).
fThe service engineers shall not use any ignition sources with the risk of fire or explosion.
fPotential ignition sources shall be kept away from the work area where the flammable refrigerant can possibly be
released to the surrounding.
fThe work area should be checked to ensure that there are no flammable hazards or ignition risks. The “No Smoking” sign
shall be attached.
fUnder no circumstances shall potential sources of ignition be used while in detection of leakage.
fMake sure that the seals or sealing materials have not degraded.
fSafe parts are the ones with which the worker can work in a flammable atmosphere. Other parts may result in ignition
due to leakage.
fReplace components only with parts specified by Samsung. Other parts may result in the ignition of refrigerant in the
atmosphere from a leak.
Installing the unit
Recovery
fWhen removing refrigerant from the system for servicing or decommissioning, it is recommended to remove the entire refrigerant.
fWhen transferring refrigerant into cylinders, make sure that only the refrigerant recovery cylinders are used.
fAll cylinders used for the recovered refrigerant shall be labelled.
fCylinders shall be equipped with pressure relief valves and shut-off valves in a proper order.
fThe recovery system shall operate normally according to the specified instructions and shall be suitable for refrigerant recovery.
fIn addition, the calibration scales shall operate normally.
fHoses shall be equipped with leak-free disconnect couplings.
fBefore starting the recovery, check for the status of the recovery system and sealing state. Consult with the manufacturer if suspected.
fThe recovered refrigerant shall be returned to the supplier in the correct recovery cylinders with the Waste Transfer Note attached.
fDo not mix refrigerants in the recovery units or cylinders.
fIf compressors or compressor oils are to be removed, make sure that they have been evacuated to the acceptable level to ensure
that flammable refrigerant does not remain in the lubricant.
fThe evacuation process shall be performed before sending the compressor to the suppliers.
fOnly the electrical heating to the compressor body is allowed to accelerate the process.
fOil shall be drained safely from the system.
fNever install a motor-driven equipment to prevent ignition.
fEmpty recovery cylinders shall be evacuated and cooled before recovery.
Installation location requirements
fThe outdoor unit shall be installed in an open space that is always ventilated.
fThe local gas regulations shall be observed.
fFor installation inside a building (this applies either to indoor or outdoor units installed inside) a minimum room floor area of
space conditioned is mandatory according to IEC 60335-2-40:2018 (see the reference table into either the indoor or outdoor
unit installation manual).
fTo handle, purge, and dispose the refrigerant, or break into the refrigerant circuit, the worker should have a certificate from an
industry-accredited authority.
Moving the Outdoor Unit by Wire Rope
Fasten the outdoor unit by two 8 m or longer wire ropes as shown at the
figure. To prevent from damage or scratches, insert a piece of cloth between
the outdoor unit and rope, then move the unit.
❋ The appearance of the unit may be different from the picture depending
on the model.
ENGLISH-12
Wire rope
Plate protection
cloth
Space requirements for outdoor unit
When installing 1 outdoor unit
(Unit : mm)
1,500 or more
2,000 or more
300 or more
600 or more
❋ The upper part of the outdoor unit and the air outlet
is towards the wall
300 or more
❋ When 3 sides of the outdoor unit are blocked by the
wall
300 or more
1,500 or more
600 or more
1,500 or more
300 or more
❋ When the air outlet is towards the wall
❋ The upper part of the outdoor unit and the air outlet
is opposite the wall
❋ When front and rear side of the outdoor unit is
towards the wall
ENGLISH-13
INSTALLATION
300 or more
02
❋ When the air outlet is opposite the wall
Installing the unit
When installing more than 1 outdoor unit
1500 or more
(Unit : mm)
300 or more
❋ When the air outlet is towards the wall
300 or more
600 or more
600 or more
600 or more
600 or more
600 or more
❋ When front and rear side of the outdoor unit is towards the wall
1500 or more
600 or more
3000 or more
3000 or more
500 or
more
300 or more
500 or
more
1500 or more
300 or
more
❋ When 3 sides of the outdoor unit are blocked by the wall
300 or more
❋ The upper part of the outdoor unit and the
air outlet is opposite the wall
300 or more
❋ When front and rear side of the outdoor unit is towards the wall
CAUTION
• The units must be installed according to distances declared, in order to permit accessibility from each side, either
to guarantee correct operation of maintenance or repairing products. The unit’s parts must be reachable and
removable completely under safety condition (for people or things).
ENGLISH-14
Outdoor unit installation
The outdoor unit must be installed on a rigid and stable base to avoid any increase in the noise level and vibration,
particularly if the outdoor unit is to be installed in a location exposed to strong winds or at a height, the unit must be fixed to
an appropriate support(wall or ground).
fFix the outdoor unit with anchor bolts.
CAUTION
344
620
940
Outdoor unit support
Outdoor
unit
NN
Anchor bolt
OUTDOOR UNIT INSTALLED ON THE WALL BY RACK
fEnsure the wall will be able to suspend the weight of rack and outdoor unit ;
fInstall the rack close to the column as much as possible ;
fInstall proper grommet in order to reduce noise and residual vibration
transferred by outdoor unit towards wall.
CAUTION
Outdoor unit
support
Base surface
Designed to
cut off residual
vibration from
outdoor unit to
rack. (not supplied
with product)
When installing air guide duct
• Check and make sure that screws do not damage the copper pipe.
• Secure air guide duct on guard fan.
Soft rubber designed to cut off
vibration from rack to wall. (not
supplied with product)
ENGLISH-15
384
• When tightening the anchor bolt, tighten the rubber
washer to prevent the outdoor unit bolt connection part
from corroding.
• Make a drain outlet around the base for outdoor unit
drainage.
• If the outdoor unit is installed on the roof, you have to
check the ceiling strength and waterproof the unit.
328
Anchor bolt hole
INSTALLATION
NOTE
02
(Unit : mm)
• The anchor bolt must be 20 mm or higher from the base
surface.
Installing the unit
Drain work
fIn case there is not enough space for drainage out of the unit, additional drain
works are required. Follow the description as below
- Make space more than 100mm between the bottom of the outdoor unit and
the ground for installation of the drain hose.
- Insert the drain plug into the hole on the bottom of the outdoor unit.
- Connect the drain hose to the drain plug.
- Make sure dusts or small branches should not go into the drain hose.
• If drain work is not enough, it can lead to system performance degration and system damages.
WARNING
Drain hole Φ20 x 4 ea
Air discharge side
13mm
Drain plug x 1ea
Drain cap x 3ea
1. Prepare a water drainage channel around the foundation, to drain waste water from around the unit.
2. If the water drainage of the unit is not easy, please build up the unit on a foundation
of concrete blocks, etc. (the height of the foundation should be maximum 150 mm).
3. If you install the unit on a frame, please install a waterproof plate within 150 mm of
the underside of the unit in order to prevent the invasion of water from the lower
direction.
4. When installing the unit in a place frequently exposed to snow, pay special attention
to elevate the foundation as high as possible.
5. If you install the unit on a building frame, please install a waterproof plate (field
supply) (within 150mm of the underside of the unit) in order to avoid the drain
water dripping. (See figure)
ENGLISH-16
≥100mm
• General area
While Air-Water Heat Pump is running in heating mode, Ice can begin accumulate on the surface of condenser.
To prevent Ice from growing, system go into De-frost mode and then Ice on the surface changes to water.
Dropped water from condenser shall be eliminated through running drain holes to prevent Ice growing at low temperature.
• Heavy snow fall area (Natural drainage)
fWhen using the air conditioner in the heating mode, ice may accumulate. During de-icing (defrost operation), the
condensed water must be drained off safely. For the air conditioner operates well, you must follow the instructions below.
- Make space more than 80mm between the bottom of the outdoor unit and the ground for installation.
02
- If the product is installed in a region of heavy snow, allow enough separation distance between the product and the
ground.
- When installing the product, make sure that the rack is not placed under the drain hole.
- Ensure that the drained water runs off correctly and safely.
CAUTION
• In areas with heavy snow fall, piled snow could block the air
intake. To avoid this incident, install a frame that is higher than
estimated snow fall. In addition, install a snow-proof hood to
avoid snow from piling on the outdoor unit.
• If ice accumulates on the base, it may cause critical damage
to the product. (e.g., a lakeside in a cold area, the seashore, an
alpine region, etc.)
• In a heavy snowfall area, do not install the drain plug and drain
cap into the outdoor unit. And, it may cause frozen ground.
Therefore, take appropriate measures to prevent it.
ENGLISH-17
Snow-proof
hood
Estimated
snow fall
Frame
Ground
INSTALLATION
80 mm
Installing the unit
Selecting a location in cold climates
NOTE
• When operating the unit in a low outdoor ambient temperature, be sure to follow the instructions described
below.
fTo prevent exposure to wind, install the unit with its suction side facing the wall.
fNever install the unit at a site where the suction side may be exposed directly to wind.
fTo prevent exposure to wind, install a baffle plate on the air discharge side of the unit.
fIn heavy snowfall areas it is very important to select an installation site where the snow will not affect the unit. If lateral
snowfall is possible, make sure that the heat exchanger coil is not affected by the snow (If necessary construct a lateral
canopy)
1. Construct a large canopy.
2. Construct a pedestal.
- Install the unit high enough off the ground to prevent it being buried under
snow.
fThe fan inside outdoor unit will operate regularly, as designed, with switch “K6 ON” to prevent from snow accumulating
inside outdoor unit. (Refer to page 45)
fThe outdoor unit should be installed with consideration of the direction of strong winds. These can make the unit turn
over, so the side of the unit should be set to face the wind, not the front of the unit.
Strong wind
Strong wind
Blown air
ENGLISH-18
Electrical connections
Overall system configuration
Connection of the power cable (1 phase 2 wires)
Outdoor unit
Hydro unit
INSTALLATION
1 phase
2 wires
220240 V ~
ELCB
Or
MCCB+
ELB
Earth
Earth
Communication cable
CAUTION
• Install cabinet panel near the outdoor unit for the convenience of service and emergency operation off.
• Make sure to install the circuit breaker with the over-current and electric leakage protection.
Connection of the power cable (3 phase 4 wires)
Distribution board
Outdoor unit
Hydro unit
1Φ, 220- 3Φ, 380240Vac 415Vac
Distribution board
3phase
4wires
380 415 V~
MCCB + ELB MCCB + ELB
ELCB
or
Or
MCCB+
ELB
ELCB
or
ELCB
Earth
Earth
Communication cable
CAUTION
• Install cabinet panel near the outdoor unit for the convenience of service and emergency operation off.
• Make sure to install the circuit breaker with the over-current and electric leakage protection.
ENGLISH-19
02
Distribution board
1 phase
2 wires
220240 V ~
Connecting the cable
Power cable specifications
1 phase
Outdoor unit
AE090RXEDEG
MCA
MFA
Hz
Rated
Volts
Min
Voltage Range
Max
Min. Circuit Amps.
Max. Fuse Amps.
50
220-240
198
264
22 A
27.5 A
fThe power cable is not supplied with Air to Water Heat pump.
fSupply cords of parts of appliances for outdoor use shall not be lighter than polychloroprene sheathed flexible cord (Code
designation IEC:60245 IEC 57 / CENELEC:H05RN-F)
fThis Equipment complies with IEC 61000-3-12.
3 Phase
Outdoor unit
AE090RXEDGG
MCA
MFA
Hz
Rated
Volts
Min
Voltage Range
Max
Min. Circuit Amps.
Max. Fuse Amps.
50
380-415
342
457
10 A
16.1 A
fThe power cable is not supplied with Air to Water Heat pump.
fSupply cords of parts of appliances for outdoor use shall not be lighter than polychloroprene sheathed flexible cord (Code
designation IEC:60245 IEC 66 / CENELEC:H07RN-F)
fThis equipment complies with IEC 61000-3-12 provided that the short-circuit power Ssc is greater than or equal to
3.3[MVA] 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 3.3[MVA].
ENGLISH-20
Specification of connection cables (common in use)
Power supply
Max/Min(V)
Communation cable
±10 %
0.75~1.5 mm², 2 wires
1Φ, 220-240 V, 50 Hz
3Φ, 380-415 V, 50 Hz
02
fFor Power Cable, use the grade H07RN-F or H05RN-F materials.
1-phase terminal block spec
AC power : M5 screw
Communication : M4 screw
L
N
17
10.1
13
3-phase terminal block spec
AC power : M4 screw
1(L)
2(N)
9.8
L1(R) L2(S) L3(T)
Communication : M4 screw
N
10.1
14.19
ENGLISH-21
INSTALLATION
fPower supply cords of parts of appliances for outdoor use shall not be lighter
than polychloroprene sheathed flexible cord. (Code designation IEC:60245 IEC
57 / CENELEC: H05RN-F or IEC:60245 IEC 66 / CENELEC: H07RN-F)
fWhen installing the outdoor unit in a computer room or net work room, server
room or in the presence of risk of disturbance to the communication cable,
use the double shielded (tape aluminium / polyester braid + copper ) cable of
FROHH2R type.
Connecting the cable
Wiring diagram of power cable
When using ELB for 1 phase and 3 phase
f1 phase
L
N
Cable tie
Power Supply
Electrical component box
Cable
clamp
MCCB
ELB
Main power cable
MCCB
Communication
cable
f3 phase
1(L)
Hydro unit
2(N) L1(R) L2(S) L3(T)
N
NOT USE
❋ The appearance of the unit may be
different from the picture depending on
the model.
Cable tie
Cable clamp
3 Phase 4 Wires power
cable (AC 380-415 V)
CAUTION
Communication
cable
• You should connect the power cable into the power cable terminal and fasten it with a clamp.
• The unbalanced power must be maintained within 2 % of supply rating.
- If the power is unbalanced greatly, it may shorten the life of the condenser. If the unbalanced power is
exceeded over 4 % of supply rating, the indoor unit is protected, stopped and the error mode indicates.
• To protect the product from water and possible shock, you should keep the power cable and the connection cord of
the indoor and outdoor units within ducts. (with appropriate IP rating and material selection for your application)
• Ensure that main supply connection is made through a switch that disconnects all poles, with contact gap of a
least 3 mm.
• Devices disconnected from the power supply should be completely disconnected in the condition of
overvoltage category.
• Keep distances of 50 mm or more between power cable and communication cable.
ENGLISH-22
1 phase 2 wires
1 phase
Circuit
breaker
Earth cable
(U-Trap)
02
INSTALLATION
Power cable
Communication cable between Hydro
unit and outdoor units
Communication
cable
Earth
Hydro unit
CAUTION
• When removing the outer cover of the power cable, use the appropriate tools to prevent damaging the inner
cover.
• Make sure to place the outer cover of the power cable and the communication cable, at least 20 mm into the
electrical parts.
• Communication wiring should be done separately from the power cable and other communication cables.
ENGLISH-23
Connecting the cable
3 phase 4 wires
3 phase
Circuit
breaker
1(L)
2(N) sXOyP sYOzP sZO{P
u
Earth cable
(U-Trap)
NOT USE
Power cable
Communication cable between Hydro and
outdoor units
Communication
cable
Earth
Hydro unit
CAUTION
• When removing the outer cover of the power cable, use the appropriate tools to prevent damaging the inner
cover.
• Make sure to place the outer cover of the power cable and the communication cable, at least 20 mm into the
electrical parts.
• Communication wiring should be done separately from the power cable and other communication cables.
ENGLISH-24
Connecting the power terminal
02
fConnect the cables to the terminal board using the compressed ring terminal.
fConnect the rated cables only.
fConnect using a wrench which is able to apply the rated torque to the screws.
fIf the terminal is loose, fire may occur caused by arc. If the terminal is connected too firmly, the terminal may be
damaged.
Tightening Torque (kgf.cm)
12~18
M5
20~30
• For the product that uses the R-32 refrigerant, be cautious not to generate a spark by keeping the following
requirements:
- Do not remove the fuses with power on.
- Do not disconnect the power plug from the wall outlet with power on.
- It is recommended to locate the outlet in a high position. Place the cords so that they are not tangled.
Installing the earth wire
fEarthing must be done by your installation specialist for your safety.
fUse the earth wire by referring to the specification of the electric cable for the outdoor unit.
Earthing the power cable
fThe standard of earthing may vary according to the rated voltage and installation place of the Air to Water Heat Pump.
fEarth the power cable according to the following.
Installation place
Power condition
High humidity
Electrical potential of lower than 150 V
Electrical potential of higher than 150 V
Average humidity
Low humidity
Perform the earthing work 3. Note 1)
Perform the earthing work 3 if
possible for your safety. Note 1)
Must perform the earthing work 3. Note 1)
(In case of installing circuit breaker)
❋ Note 1) Earthing work 3
- Earthing must be done by your installation specialist.
- Check if the earthing resistance is lower than 100Ω. When installing a circuit breaker that can cut the electric circuit in
case of a short circuit, the allowable earthing resistance can be 30~500Ω.
fWhen using the terminal for earthing only
fWhen using earthing of the switchboard
Distribution
Board
Earth
terminal
ENGLISH-25
INSTALLATION
CAUTION
M4
Connecting the cable
How to connect your extended power cables
1. Prepare the following tools.
Tools
Crimping pliers
Connection sleeve (mm)
Insulation tape
Contraction tube (mm)
Spec
MH-14
20xØ6.5(HxOD)
Width 19mm
70xØ8.0(LxOD)
Shape
2. As shown in the figure, peel off the shields from the rubber and wire of the
power cable.
- Peel off 20 mm of cable shields from the pre-installed tube.
Power cable
20
20
20
60
CAUTION
• For information about the power cable specifications for indoor and
outdoor units, refer to the installation manual.
• After peeling off cable wires from the pre-installed tube, insert a
contraction tube.
120
180
(Unit: mm)
20
Pre-installed tube for the power cable
3. Insert both sides of core wire of the power cable into the connection sleeve.
fMethod 1
Push the core wire into the sleeve from both sides.
Connection sleeve
fMethod 2
Twist the wire cores together and push it into the sleeve.
Connection sleeve
4. Using crimping tool, compress the two points and flip it over and compress another two points in the same location.
- The compression dimension should be 8.0.
- After compressing it, pull both sides of the wire to make sure it is firmly pressed.
Compression
dimension
fMethod 1
fMethod 2
Compress it 4 times.
5 mm
ENGLISH-26
Compress it 4 times.
5 mm
5. Wrap it with the insulation tape twice or more and position your contraction tube in the middle of the insulation tape.
Three or more layers of insulation are required.
fMethod 1
fMethod 2
Insulation tape
02
40 mm
Insulation tape
6. Apply heat to the contraction tube to contract it.
Contraction tube
7. After tube contraction work is completed, wrap it with the insulation tape to finish.
CAUTION
• Make sure that the connection parts are not exposed to outside.
• Be sure to use insulation tape and a contraction tube made of approved reinforced insulating materials that have
the same level of withstand voltage with the power cable. (Comply with the local regulations on extensions.)
Insulation tape
WARNING
• In case of extending the electric wire, please DO NOT use a round-shaped Pressing socket.
- Incomplete wire connections can cause electric shock or a fire.
ENGLISH-27
INSTALLATION
35 mm
Refrigerant piping work
fInstall the refrigerant pipe within the maximum allowable length, difference in height and length of after the first branch pipe.
fThe pressure of the R-32 is high.
Use only rated refrigerant pipe and follow the installation method.
fUse clean refrigerant pipe Where there is no harmful ion, oxide, dust, iron content or moisture.
fUse adequate tools and accessories for R-32.
Manifold gauge
• Use manifold gauge only for R-32 to prevent the inflow of foreign substances.
Vacuum pump
• Use vacuum pump with check valve to prevent pump oil from flowing backward while the vacuum
pump is stopped.
• Use the vacuum pump that the vacuum induction is available up to 5Torr. (-100.7kPa)
Flare nut
• Use only flare nut supplied with the product.
Allowable length of the refrigerant pipe and the installation examples
Outdoor unit
Item
Maximum allowable
length of pipe
Outdoor unit
~ Hydro unit
Maximum allowable
height
Outdoor unit
~ Hydro unit
Example
Total length
Less than
35 m
Less than 20 m
Additional refrigerant calculation
Remarks
a ≤ 35 m
H1
If outdoor unit
is located lower
position H1 ≤15 m
R=Basic charge + additional charge by the piping length
Contact the manufacturer if the length should exceed.
ENGLISH-28
fBecause your air conditioner contains R-32 refrigerant, make sure that it is installed, operated, and stored it in a room
whose floor area is larger than the minimum required floor area specified in the following table:
Minimum required room area (A,m²)
m (kg)
Ceiling-mounted
≤ 1.842
Wall-mounted
Floor-standing
No requirement
1.843
3.64
4.45
28.9
02
1.9
3.75
4.58
30.7
2.0
3.95
4.83
34.0
2.2
4.34
5.31
41.2
2.4
4.74
5.79
49.0
INSTALLATION
2.6
5.13
6.39
57.5
2.8
5.53
7.41
66.7
3.0
5.92
8.51
76.6
3.2
6.48
9.68
87.2
3.4
7.32
10.9
98.4
3.6
8.20
12.3
110
3.8
9.14
13.7
123
4.0
10.1
15.1
136
4.2
11.2
16.7
150
4.4
12.3
18.3
165
4.6
13.4
20.0
180
4.8
14.6
21.8
196
5.0
15.8
23.6
213
- m : Total refrigerant charge in the system
- A : Minimum required floor area
fIMPORTANT: it’s mandatory to consider either the table above or taking into consideration the local law regarding the
minimum living space of the premises.
fMinimum installation height of indoor unit is 0.6 m for floor mounted, 1.8 m for wall, 2.2 m for ceiling.
ENGLISH-29
Refrigerant piping work
Selecting the refrigerant pipe
Outdoor unit capacity (kW)
Liquid side
(mm)
Gas side
(mm)
Outer
diameter
(mm)
Minimum
thickness
(mm)
AE090RXEDEG
ø6.35
ø15.88
ø 6.35
0.7
AE090RXEDGG
ø6.35
ø15.88
ø 9.52
0.7
ø12.70
0.8
ø15.88
1.0
ø15.88
0.8
ø19.05
0.9
ø22.23
0.9
fInstall refrigerant pipe depending on the outdoor unit
capacity.
fMake sure to use C1220T-1/2H (Semi-hard) pipe for more
than Ø19.05 mm. In case of using C1220T-O (Soft) pipe for
Ø19.05 mm, pipe may be broken, which can result in an injury.
Temper grade
C1220T-0
C1220T-1/2H OR
C1220T-H
❋ Temper grade and minimum thickness of the
refrigerant pipe
Keeping refrigerant pipe clean and dry
fTo prevent foreign materials or water from entering the pipe, pipes shall be sealed by caps.
Cutting or flaring the pipes
1. Make sure that you prepared the required tools.
- Pipe cutter, reamer, flaring 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.
- There are some examples of correct and incorrect cut edges below.
90°
Oblique
ENGLISH-30
Rough
Burr
3. To prevent a gas leak, remove all burrs at the cut edge of the pipe with a reamer.
CAUTION
Burr
Pipe
• Face the pipe down while removing the burrs to make sure that
burrs do not get in to the pipe.
90°± 2°
45°±2
°
Pipe
Outer diameter
[D(mm)]
Depth [A (mm)]
ø 6.35
1.3
8.7~9.1
ø 9.52
1.8
12.8~13.2
ø 12.70
2.0
16.2~16.6
ø 15.88
2.2
19.3~19.7
ø19.05
2.2
23.6~24.0
R 0.4
~0.8
Flare
Flaring Size [B (mm)]
5. Check that you flared the pipe correctly.
- Below figures shows some examples of incorrectly flared pipes.
Correct
Damaged
surface
Inclined
Cracked
Uneven
thickness
6. Align the pipes to connect them easily. Tighten the flare nuts first with your hands, and then with a torque wrench,
applying the following torque:
Apply frozen oil
Indoor outlet pipe
NOTE
CAUTION
Flare nut
Connecting pipe
Outer diameter [mm(inch)]
Torque (N•m)
ø 6.35 (1/4")
14~18
ø 9.52 (3/8")
34~42
ø 12.70 (1/2")
49~61
ø 15.88 (5/8")
68~82
ø19.05 (3/4")
100~120
• Excessive torque can be cause of gas leakage.
• You must purge with oxygen free nitrogen while brazing.
ENGLISH-31
INSTALLATION
4. Put a flare nut slightly into the pipe and modify the flare.
02
Pipe cutter
Refrigerant piping work
CAUTION
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Tighten the nuts to the specified torques. If overtightened, the nuts could be broken so refrigerant may leak.
Protect or enclose refrigerant tubing to avoid mechanical damage.
Keep the piping length at a minimum to minimize the additional refrigerant charge due to piping extension.
When connecting the pipes, make sure that surrounding objects do not interfere with or contact them to
prevent refrigerant leakage due to physical damage.
Make sure that the spaces where the refrigerant pipes are installed comply with national gas regulations.
Be sure to perform works such as additional refrigerant charging and pipe welding under the conditions of good
ventilation.
Be sure to perform welding and piping works for mechanical connections under the conditions that the
refrigerant does not circulate.
When reconnecting the pipes, make sure to perform flared-jointing newly to prevent refrigerant leakage.
When working on the refrigerant pipes and the flexible refrigerant connectors, be careful that they are not
damaged physically by surrounding objects.
For installation with handling the R-32 refrigerant, use the special tools for the R-32 refrigerant
(manifold gauge, vacuum pump, charging hose, etc.).
During tests never pressurize the appliances with a pressure higher than the maximum allowable pressure(as
indicated on the nameplate of the unit).
Never directly touch any accidental leaking refrigerant. This could result in severe wounds caused by frostbite.
Never install a dryer to this unit in order to guarantee its lifetime.
If you need a pipe longer than specified in piping codes and standards, you must add refrigerant to the pipe.
Otherwise, the indoor unit may freeze.
While removing burrs, put the pipe face down to make sure that the burrs do not get in to the pipe.
ENGLISH-32
Selecting the insulator of the refrigerant pipe
fAccording to pipes size, insulate pipes on gas and liquid side by selecting appropriate insulations.
fStandard condition is under a temperature of 30 °C and a humidity of 85 %. If the units are installed in extreme weather
conditions, select the insulator by table below.
Thickness of insulator
High humidity
(Over 30 °C, 85 %)
ø6.35~ø19.05
9
9
ø12.70~ø19.05
13
13
ø6.35
13
19
19
25
Remarks
INSTALLATION
Pipe diameter (mm)
EPDM, NBR
Liquid
ø9.52
Gas
ø12.70
ø15.88
The material shall has
heat resistant over
120 °C
ø19.05
CAUTION
• Install the insulation not to be get wider and use the adhesives on the connection part of it to prevent moisture
entering.
• Wind the refrigerant pipe with insulation tape if it is exposed to outside sunlight.
• Install the refrigerant pipe respecting that the insulation does not get thinner on the bent part or hanger of pipe.
Insulating the refrigerant pipe
fYou must check if there is a gas leak before completing all the installation process.
fUse EPDM insulation which meets the following condition.
Item
Density
Dimension change route by heat
Unit
Standard
g/cm²
0.048~0.096
Remarks
%
-5 or less
g/cm²
0.005 or less
Thermal conductivity
kcal/m·h·˚C
0.032 or less
KSL 9016-95
Moisture transpiration factor
ng/(m²·s·Pa)
15 or less
KSM 3808-03
Moisture transpiration grade
{g/(m²·24h)}
15 or less
KSA 1013-01
Water absorption rate
Formaldehyde dispersion
Oxygen rate
KSM 3014-01
mg/L
-
KSF 3200-02
%
25 or less
ISO 4589-2-96
ENGLISH-33
02
Pipe type
Normal
(Under 30 °C, 85 %)
Refrigerant piping work
Insulating the refrigerant pipe
fBe sure to insulate the refrigerant pipe, joints and connections with class 'o' material.
fIf you insulate the pipes, the condensed water does not fall from the pipes and the capacity of the Air to Water Heat
Pump is improved.
fCheck if there are any insulation cracks on the bent pipe.
Insulation
Clamp
Insulation
Overlapped
Indoor unit
Indoor unit
Gas side pipe
Liquid side pipe
Install the insulation to
be overlapped
Brazing the Pipe
fMake sure that there is no moisture inside the pipe.
fMake sure that there are no foreign materials and impurities in the pipe.
Replacement of Nitrogen gas
1. Use oxygen free nitrogen gas when brazing the pipes as shown in the picture.
2. If you do not use Nitrogen gas when brazing the pipes, oxidation may form in the pipe. It can cause the damage of the
compressor and valves.
3. Adjust the flow rate of the replacement with a pressure regulator to maintain 0.05 m3/h or more.
4. Perform brazing of the service valve after protecting the valve.
Brazing part
1/4" copper pipe
Nitrogen gas
Valve stem
Pressure regulator
Taping
ENGLISH-34
Performing the refrigerant gas leak test
fUse a manifold gauge for R-32 to prevent the inflow of foreign substances and resist against the internal pressure.
fPressure test with dry oxygen free nitrogen only.
If you apply pressure more than 4.6MPa, the pipes may be
damaged. Apply pressure using pressure regulator.
Keep it for minimum 24 hours 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 gas leak.
If the pressure is changed, apply soapy water to check the leak.
Check the pressure of the Nitrogen gas again.
Maintain 1.0MPa of the pressure before performing
vacuum drying and check further gas leak.
After checking first gas leak, maintain 1.0MPa to check further gas
leak.
02
Apply pressure to the liquid side pipe and gas side
pipe with Nitrogen gas of 4.6 MPa (46.9 kgf/cm²)
Low pressure side
High pressure side
Service port
Gas side
pipe
Liquid
side pipe
Pressure adjustment
valve (mandatory)
Nitrogen gas
❋ Make sure to use a recommended bubble test solution for Gas Leak Test. Soap water could cause cracking of the flare
nuts or lead to corrosion of flared joints.
CAUTION
• You may get injured when the joint on the high pressure side detaches and the gas comes in contact with your
body. Make sure to tighten the joint to prevent such accidents.
ENGLISH-35
INSTALLATION
Manifold gauge
Refrigerant piping work
Manifold gauge
Vacuum drying
fUse the tools for R-32 only to prevent the inflow of foreign substances and resist
against the internal pressure.
fUse the vacuum pump with the check valve to prevent pump oil from flowing
backward while the vacuum pump is stopped suddenly.
fUse the vacuum pump that can be vacuumed up to 666.6Pa(5 mmHg).
fClose the service valve of the liquid side pipe, gas side pipe completely when
performing air tightening test or vacuum drying.
Low pressure side
Service port
High
pressure
side
Gas side
pipe
Connect the manifold gauge to the liquid
pipe and gas pipe.
Liquid
side pipe
Vacuum the liquid pipe and gas pipe
using the vacuum pump.
Make sure to install check valve to prevent pump oil from
flowing 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.
Check the gas leak.
Pressure Increase
Yes
Vacuum destruction due to the
moisture inside the pipe
• Apply pressure with Nitrogen gas of
0.05 MPa (gauge pressure).
No
Charging additional refrigerant according
to piping length
Perform vacuum drying again up to
-100.7 kPa (gauge pressure), 5 torr (for
2 hours or longer) and evaluate the
vacuum
No
Yes
Pressure Increase
CAUTION
• If the pressure rises in an hour, either water remains inside the pipe, or there will be a leak.
ENGLISH-36
Vacuum
pump
Selecting additional refrigerant charge
❋ Basic charge
The basic amount of refrigerant for outdoor unit charged in factory is:
Outdoor unit (Series)
Factory charge(kg)
AE090RXEDEG
Refrigerant Charging
❋ Additional charging amount is determined based on liquid pipe specifications.
Outdoor unit of liquid
ø6.35
Additional charging (g)
20 g/m
Additional Charge(g) = (L1-15)*20
NOTE
• L1: Total length of liquid pipe Ø 6.35(m)_Model : ✴✴090✴✴
Ex) Total length of liquid pipe =20 m
Φ 6.35 = (20m-15m) x 20g/m = 100 g (Model : ✴✴090✴✴)
Precautions on adding the R-32 refrigerant
In addition to the conventional charging procedure,. the following requirements shall be kept.
fMake sure that contamination by other refrigerants does not occur for charging.
fTo minimize the amount of refrigerant, keep the hoses and lines as short as possible.
fThe cylinders shall be kept upright.
fMake sure that the refrigeration system is earthed before charging.
fLabel the system after charging, if necessary.
fExtreme care is required not to overcharge the system.
fBefore recharging, the pressure shall be checked with nitrogen blowing.
fAfter charging, check for leakage before commissioning.
fBe sure to check for leakage before leaving the work area.
ENGLISH-37
INSTALLATION
❋ Charge additional refrigerant according to the total length of the pipe.
Each factory charging values are determined according to basic pipe length 15 m.
When extra pipe length are required, additional charging works must be implemented as describes below.
02
1.4
AE090RXEDGG
Refrigerant piping work
Charging refrigerant
fMeasure 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 fluorinated greenhouse gases. Do not vent gases into the atmosphere.
CAUTION
• Inform user if the system contains 5 tCO2e or more of fluorinated 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
qualified personnel only. In the case of the situation above, the installer (or authorized person with responsibility for
final 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 fluorinated greenhouse gases.
Please fill in the following indelible ink on the refrigerant charge label supplied
with this product on and on this manual.
f① The factory refrigerant charge of the product.
f② The additional refrigerant amount charged in the field.
f①+② The total refrigerant charge.
NOTE
a. Factory refrigerant charge of the product: See unit name plate.
b. Additional refrigerant amount charged in the field. (Refer
to the above information for the quantity of refrigerant
replenishment.)
c. Total refrigerant charge.
d. Refrigerant cylinder and manifold for charging.
R-32
Indoor unit
GWP = 675
②
d
①
Outdoor unit
Unit
kg
tCO2e
①, a
②, b
① + ②, c
Refrigerant type
R-32
GWP value
675
❋ GWP: Global Warming Potential
❋ Calculating tCO2e: kg x GWP/1000
fBefore charging, check whether the refrigerant cylinder has a siphon attached or not and position the cylinder accordingly.
Charging using a cylinder with a
siphon attached
Charge the liquid refrigerant with
the cylinder in upright position.
CAUTION
Charging using a cylinder
without a siphon attached
Charge the liquid refrigerant with
the cylinder in up-side-down
position.
• The filled-out label must be adhered in the proximity of the product charging port (e.g. onto the inside of the
stop valve cover).
• Make sure that the total refrigerant charge does not exceed (A), the maximum refrigerant charge, which is
calculated in the following formula: Maximum refrigerant charge (A)= factory refrigerant charge (B) + maximum
additional refrigerant charge due to piping extension (C).
• Here below, the summary table with refrigerant charge limits for each products.
(Unit : g)
Model
AE090RXED**
A
1800
B
1400
C
400
ENGLISH-38
Adding refrigerant
fMeasure the quantity of the refrigerant depending on the length of the liquid side pipe. Add fixed quantity of the
refrigerant using a scale.
❋ Adding refrigerants in cooling conditions
Manifold gauge
INSTALLATION
Low pressure
side
Service valve
Scale
❋ Adding refrigerants in heating conditions
Manifold gauge
Low
pressure
side
Scale
High
pressure
side
Gas side
Outdoor
unit
02
Suction charging
Outdoor unit
High
pressure
side
Liquid side
Gas side
Suction charging
Liquid side
Service valve
fConnect the manifold gauge and purge the manifold gauge.
fOpen the manifold gauge valve of the liquid side service valve and add the liquid refrigerant.
fIf you cannot fully recharge the additional refrigerant while the outdoor unit is stopped, use the key on the outdoor unit
PCB to recharge the remaining refrigerant.
fAdding the cooling refrigerant
1) Press the function key for adding refrigerant in cooling mode.
2) After 20 minutes of operation, open the valve on gas side.
3) Open the valve for low pressure side on the manifold gauge to recharge the remaining refrigerant.
ENGLISH-39
Refrigerant piping work
fAdding the heating refrigerant
1) When recharging the heating refrigerant, connect the low pressure pipe from manifold gage to the suction charging
port.
2) Press the function key for adding refrigerant in heating mode.
3) After 20 minutes of operation, open the valve on suction charge port.
4) Open the valve for low pressure side on the manifold gage to recharge the remaining refrigerant.
CAUTION
• Open the gas side and liquid side service valve completely after charging the refrigerant. (If you operate the Air
to Water Heat Pump with the service valve closed, the important parts may be damaged.)
To close the valve stem
1. Open the cap and turn the valve stem clockwise by using a hexagonal wrench.
Tightening torque
for body cap
(Refer to the table)
Tightening torque (N•m)
Stem
Outer Diameter
(mm)
Body cap
Charging port
cap
Operating torque (N•m)
Stem
Charging core
Tightening torque
for charging port cap
(Refer to the table)
Sealing
edge
ø6.35
Max 5
ø9.52
Max 5
ø12.70
20 ~ 25
10 ~ 12
Max 5
ø15.88
Max 5
ø19.05
Max 12
❋ 1 N•m = 10 kgf•cm
2. Tighten the valve stem until it reached the sealing edge.
NOTE
• Do not apply excessive force to the valve stem and always use special instruments. Otherwise, the contact
surface between valve stem and sealing edge can be damaged and refrigerant can leak through this damaged
surface.
• If refrigerant would leak, turn the valve stem back by half and tighten the valve stem again, then check the
leakage. If there is no leakage any more, tighten the valve stem entirely.
3. Tighten the cap securely.
To open the valve stem
1.
2.
3.
4.
Remove the cap.
Turn the valve stem counterclockwise by using a hexagonal wrench.
Turn the valve stem until it is stopped.
Tighten the cap securely.
CAUTION
• When you use the service port, always use a charging hose, too.
• Check the leakage of refrigerant gas after tightening the cap.
• Must use a spanner and wrench when you open/tighten the valve stem.
ENGLISH-40
Checking correct grounding
If the power distribution circuit does not have a grounding or the grounding does not comply with specifications, an
grounding electrode must be installed. The corresponding accessories are not supplied with the Air to Water Heat pump.
1. Select an grounding electrode that complies with the specifications given in the illustration.
50 cm
Steel core
Terminal M4
30 cm
2. Connect the flexible hose to the flexible hose port.
fIn damp hard soil rather than loose sandy or gravel soil that has a higher grounding resistance.
fAway from underground structures or facilities, such as gas pipes, water pipes, telephone lines and underground cables.
fAt least two metres away from a lightening conductor grounding electrode and its cable.
NOTE
• The grounding wire for the telephone line cannot be used to ground the Air to Water Heat pump.
3. Finish wrapping insulating tape around the rest of the pipes leading to the outdoor unit.
4. Install a green/yellow coloured grounding wire :
fIf the grounding wire is too short, connect an extension lead, in a mechanical way and wrapping it with insulating tape
(do not bury the connection).
fSecure the grounding wire in position with staples.
NOTE
• If the grounding electrode is installed in an area of heavy traffic, its wire must be connected securely.
5. Carefully check the installation, by measuring the grounding resistance with a ground resistance tester. If the resistance is
above required level, drive the electrode deeper into the ground or increase the number of grounding electrodes.
6. Connect the grounding wire to the electrical component box inside of the outdoor unit.
Setting the option switch and function of the keys
Testing operations
1. Check the power supply between the outdoor unit and the auxiliary circuit breaker.
• 1 phase power supply : L, N
• 3 phases power supply : R,S,T,N
2. Check that you have connected the power and communication cables correctly.(If the power cable and communication
cables one mixed up or connected incorrectly, the PCB will be damaged.)
ENGLISH-41
INSTALLATION
PVC-insulated green/ To grounding
screw
yellow wire
02
Carbon
plastic
Setting the option switch and function of the keys
3. Press K1 or K2 on the outdoor unit PCB to run the test mode and stop.
KEY operation
KEY
K1
7-segment display
Press once : Heating test run
" " " " "BLANK" "BLANK"
Press twice : Defrost test run
" " " " "BLANK" "BLANK"
-
Press 3times : Finishing test mode
Press once : Cooling test run
(Heating Only : skip)
" " " " "BLANK" "BLANK"
Press twice : Output signal test run
" " " " "BLANK" "BLANK"
Press 3 times : Finishing test mode
-
K3
Reset
-
K4
View mode
Refer to View mode display
K2
7-segment display
KEY (K1~K4)
4. View Mode : When the K4 switch is pressed, you can see information about our system state as below.
Number of
press
Display contents
Display
Units
Segment 1
Segment 2
Segment 3
Segment 4
10s digit of Tx
1s digit of Tx
10s digit of Rx
1s digit of Rx
-
1
100s digit
10s digit
1s digit
Hz
Hz
0
Communication State
1
Order frequency
2
Current frequency
2
100s digit
10s digit
1s digit
3
Pump output
3
100s digit
10s digit
1s digit
%
4
Outdoor air sensor
4
+/-
10s digit
1s digit
°C
5
Discharge sensor
5
100s digit
10s digit
1s digit
°C
6
Eva in sensor
6
+/-
10s digit
1s digit
°C
7
Inlet water sensor
7
+/-
10s digit
1s digit
°C
8
Outlet water sensor
8
+/-
10s digit
1s digit
°C
9
Cond sensor
9
+/-
10s digit
1s digit
°C
10
Current
A
10s digit
1s digit
First decimal
A
11
Fan RPM
B
1000s digit
100s digit
10s digit
rpm
12
Target discharge
temperature
C
100s digit
10s digit
1s digit
°C
13
EEV
D
1000s digit
100s digit
10s digit
step
ENGLISH-42
Number of
press
Display contents
15
IPM temp.
0 : Cooling
1 : Heating
E
Segment 3
Segment 4
Protective control
0 : No protective Frequency status
control
0 : Normal
1 : Freezing
1 : Hold
2 : Defrosting
2 : Down
3 : Over-load
3 : Up_limit
4 : Discharge
4 : Down_limit
5 : Total current
Units
-
F
+/-
10s digit
1s digit
°C
Year(Dec)
Month(Hex)
Day(two digit)
Day(One digit)
-
long-1 and 1 Inverter Micom version
Year(Dec)
Month(Hex)
Day(two digit)
Day(One digit)
-
long-1 and 2 EEPROM version
Year(Dec)
Month(Hex)
Day(two digit)
Day(One digit)
-
long-1
Main Micom version
5. Key function setting
ENGLISH-43
INSTALLATION
Protective control
Segment 2
02
14
Display
Segment 1
Setting the option switch and function of the keys
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.
- Seg1 and Seg2 will display the number for selected option.
- Seg3 and Seg4 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 Seg1, Seg2 and select
the desired option.
Example)
Z
3. If you have selected desired option, you can shortly press the K2 switch to adjust the value of the Seg3, Seg4 and change
the function for the selected option.
Example)
Z
ENGLISH-44
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
Input unit
SEG1
SEG2
Main
0
0
Base heater
Main
0
1
Operation mode
Main
0
2
Snow accumulation
prevention control
Main
0
3
Silent mode
Main
0
4
Energy saving
mode
Main
0
5
SEG3
A
0
0
0
0
0
SEG4
U
0
0
1
0
1
Function of the option
Automatic address setting (default)
Manual address setting (0 to 15)
Enabled (default)
Disabled
Heat Pump (default)
Heating Only
0
0
0
1
Disabled (default)
Enabled
0
0
0
0
0
0
0
0
1
2
3
4
0
1
Manual Silent mode (-3 dB)
Manual Silent mode * 0.9 (-5 dB)
Manual Silent mode * 0.75 (-7 dB)
Manual Silent mode (-3 dB)
Low-noise Silent mode (default)
Disabled (default)
Enabled
ENGLISH-45
INSTALLATION
Option
Channel address
02
❋ 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.
Pump down procedure
Objective of pump down
For product repairs and indoor unit relocation, pump down operation must be done recover the refrigerant into the outdoor unit.
Cautions when performing pump down
fProduct limits amount of refrigerant in the outdoor unit due to slim design.
fCollect the majority of the refrigerant in the system in an empty refrigerant vessel and perform a pump down operation
with remaining refrigerant. Maximum amount of refrigerant is 1.8kg.
fIf the amount of refrigerant exceeds maximum allowable limit, increased pressure may cause compressor trip or a burn out.
Cautions when performing pump down
1.
2.
3.
4.
5.
6.
7.
Close the manifold gauge.
Close the liquid side service valve.
Set the unit to the Cooling Test mode by pushing K2 button 1 time.
Observe low pressure side using manifold gauge whe the compressor operating.
When the pressure gauge indicates "0" turn the low pressure side valve counter clockwise to close.
Stop operation of the unit by pushing K3 button.
Close the each cap of valve.
CAUTION
NOTE
NOTE
• Use a transfer cylinder when recovering refrigerant to be reused. Using modified refrigerant vessel may cause
explosion and cause damage or personal injury.
Relocation of the Air to water heat pump
• Refer to this procedure when the unit is relocated.
• Carry out the pump down procedure. (Refer to the details of ‘pump down’.)
• Collecting refrigerant may be hard, since multi type products exceeds allowable charging amount of refrigerant
in the outdoor unit to support long piping. (Refer to page 45.)
• Remove the power cord.
• Disconnect the assembly cable from the indoor and outdoor units.
• Remove the flare nut connecting the indoor unit and the pipe.
• At this time, cover the pipe of the indoor unit and the other pipe using a cap or vinyl plug to avoid foreign
material entering.
• Disconnect the pipe connected to the outdoor unit. At this time, cover the valve of the outdoor unit and the
other pipe using a cap or vinyl plug to avoid foreign material entering.
• Make sure you do not bend the connection pipes in the middle and store together with the cables.
• Move the indoor and outdoor units to a new location.
• Remove the mounting plate for the indoor unit and move it to a new location.
• Before relocating the units, be sure to thoroughly read Recovery on page page 12.
• When recharging R-32 refrigerant after it has been completely removed, be sure to charge only the factory
refrigerant amount.
• When vacuuming the product, be sure to proceed for at least 1 hour.
• Be sure to use an electronic balance when measuring the amount of refrigerant, and make sure that only the
specified amount is charged.
• If more than the amount of refrigerant specified on the label is charged, a fire may occur when the refrigerant leaks.
CAUTION
ENGLISH-46
Collecting refrigerant in refrigerant vessel before pump down operation
Gas side
R-32
Liquid side
Refrigerant
vessel valve
Valve ①
Valve ②
Scale
Manifold gauge
Service valve
ENGLISH-47
INSTALLATION
Outdoor unit
02
If the amount of refrigerant in the system exceeded the maximum allowable limit, reduce the amount of the refrigerant
by following the below instruction before pump down operation.
1. Prepare an exclusive rechargeable refrigerant vessel, scale and a manifold gauge.
2. Check the amount of refrigerant in the entire system.
3. Connect a refrigerant vessel to an outdoor unit and operated about 50 % of the indoor unit in cooling mode.
4. After 10 minutes of cooling operation, check the pressure on high pressure side with the manifold gauge. If the pressure
on the high pressure side is over 3.0 MPa (30.59 kgf/cm²),g reduce the number of operating indoor unit to decrease the
pressure below 3.0 MPa (30.59 kgf/cm²).
5. When the pressure becomes lower than 3.0 MPa (30.59 kgf/cm²) open the manifold gauge valve ② which is connected
to a liquid side. Then, open the valve on the refrigerant vessel for the refrigerant to flow from the liquid side pipe to a
vessel.
6. Check the weight difference with the scale. When desired amount of the refrigerant is collected into the vessel, close the
valve and remove the manifold gauge.
7. Make sure that the amount of the refrigerant in the vessel is about 50 % of the entire system.
8. Measure the amount of refrigerant correctly to not exceed amount of collected refrigerant.
Completing the installation
fCheck the following after completing the installation.
Outdoor unit
•
•
•
•
Check the external surface and the inside of the outdoor unit.
Is there any possibility of short circuit?
Is the place well-ventilated and ensures space for service?
Is the outdoor unit fixed securely?
Installation
Indoor unit
Adding refrigerant
Installing the drain pipe
Installing the wiring
• Check the external surface and the inside of the indoor unit.
• Is the place well-ventilated and ensures space for service?
• Check if the center of the indoor unit is ensured and it is installed horizontally.
• Are the length and the difference between the refrigerant pipes within the allowable
range?
• Is the pipe properly insulated?
• Is the quantity of the additional refrigerant correctly weighed in?
• Check the drain pipe of the outdoor unit and the indoor unit.
• Have you completed the drain test?
• Is the drain pipe properly insulated?
•
•
•
•
Have you performed the earthing work 3 to the outdoor unit?
Is 2-core cable used?
Is the length of the wire is in the limited range?
Is the wiring route correct?
ENGLISH-48
Final checks and trial operation
Inspection before test operation
ENGLISH-49
INSTALLATION
Test operation
1. Run the unit by KEY MODE or controller.
- Inspect the compressor sound during the initial operation. If roaring sound is heard, stop operation.
2. Check the indoor and outdoor units’ running status.
- Indoor and outdoor unit’s abnormal running noise.
- Proper drainage from indoor unit in cooling mode.
- Check detail running status using S-NET program.
3. Finish test.
4. Explain to the customer how to use the Air to Water Heat Pump following the user’s manual.
02
1. Check the power cable and communication cable of the indoor and outdoor unit.
2. Check the power supply between the outdoor unit and the cabinet panel.
- Check the 220-240 V~ / 380-415 V~ with the voltage meter.
3. Once the outdoor unit is turned on, it performs the tracking to check the connected indoor unit and options.
Troubleshooting
WARNING
• Incorrect handling of thermostat, safety valve or other valves may lead to tank rupture. When servicing the unit
follow instructions carefully:
• Always turn off main power supply when water supply is being shut off.
• Test the free operation of the safety valve regularly by opening the valve ensuring the water flows freely.
• Electrical connection and all servicing of the electrical components should only be carried out by an authorized
electrician.
• Fitting and all servicing of plumbing fixtures should only be carried out by an authorized installer.
• When replacing the thermostat, safety valve or any other valve or part supplied with this unit, use only approved
parts of the same specification.
Error codes
If the unit has some problems and does not work normally, error code is shown on the OUTDOOR UNIT main PBA or LCD
of the wired remote controller.
Display
Explanation
Error Source
101
Hydro Unit / Outdoor Unit communication connection error
Hydro Unit
120
Short- or open-circuit error of the room temperature sensor of the Zone 2
indoor unit (detected only when the room thermostat is used)
Hydro Unit
121
Short- or open-circuit error of the room temperature sensor of the Zone 1
indoor unit (detected only when the room thermostat is used)
Hydro Unit
122
EVA Inlet temp sensor SHORT or OPEN
Hydro Unit
123
EVA Outlet temp sensor SHORT or OPEN
Hydro Unit
162
EEPROM Error
Hydro Unit
198
Error of Terminal Block's Thermal Fuse(Open)
Hydro Unit
201
Hydro Unit / Outdoor Unit communication error(Matching error)
Hydro Unit/Ourdoor Unit
202
Hydro Unit / Outdoor Unit communication error(3 min)
Hydro Unit/Ourdoor Unit
203
Communication error between INVERTER and MAIN MICOM (4 min)
Outdoor Unit
221
Outdoor Unit air temperature sensor error
Outdoor Unit
231
Condenser temperature sensor error
Outdoor Unit
251
Discharge temperature sensor error
Outdoor Unit
320
OLP sensor error
Outdoor Unit
403
Detection of freezing (During cooling operation)
Outdoor Unit
404
Protection of Outdoor Unit when it is overload (during Safety Start, Normal
operation state)
Outdoor Unit
407
Comp down due to high pressure
Outdoor Unit
ENGLISH-50
Display
Explanation
Error Source
Outdoor Unit
419
OUTDOOR UNIT EEV operation error
Outdoor Unit
425
Power source line missing error (only for 3-phase model)
Outdoor Unit
440
Heating operation blocked (outdoor temperature over 35 °C)
Outdoor Unit
441
Cooling operation blocked (outdoor temperature under 9 °C)
Outdoor Unit
458
OUTDOOR UNIT fan1 error
Outdoor Unit
461
[Inverter] Compressor startup error
Outdoor Unit
462
[Inverter] Total current error/PFC over current error
Outdoor Unit
463
OLP is overheated
Outdoor Unit
464
[Inverter] IPM over current error
Outdoor Unit
465
Compressor overload error
Outdoor Unit
466
DC LINK over/low voltage error
Outdoor Unit
467
[Inverter] Compressor rotation error
Outdoor Unit
468
[Inverter] Current sensor error
Outdoor Unit
469
[Inverter] DC LINK voltage sensor error
Outdoor Unit
470
Outdoor unit EEPROM Read/Write Error
Outdoor Unit
471
Outdoor unit EEPROM Read/Write Error(OTP error)
Outdoor Unit
474
IPM(IGBT Module) or PFCM temperature sensor Error
Outdoor Unit
475
Outdoor Unit Fan2 error
Outdoor Unit
484
PFC Overload Error
Outdoor Unit
485
Input current sensor error
Outdoor Unit
500
IPM is overheated
Outdoor Unit
554
Gas leak error
Outdoor Unit
590
Inverter EEPROM Checksum error
Outdoor Unit
601
Communication error between the Hydro Unit and wired remote controller
Hydro Unit
604
Communication tracking error between the Hydro Unit and wired remote
controller
Hydro Unit
653
Wired remote controller temp sensor SHORT or OPEN
Hydro Unit, Wired Remote
Controller
654
Memory(EEPROM) Read/Write Error(Wired remote Controller data error)
Hydro Unit, Wired Remote
Controller
899
Short- or open-circuit error of the Zone 1 water-out temperature sensor
Hydro Unit
900
Short- or open-circuit error of the Zone 2 water-out temperature sensor
Hydro Unit
ENGLISH-51
OTHERS
Discharge of a compressor is overheated
03
416
Error codes
Display
Explanation
Error Source
901
Water inlet (PHE) temperature sensor error(open/short)
Hydro Unit
902
Water outlet (PHE) temperature sensor error(open/short)
Hydro Unit
903
Water outlet (backup heater) temperature sensor error
Hydro Unit
904
DHW tank temperature sensor error
906
Refrigerant gas inlet (PHE) temperature sensor (open/short)
Hydro Unit
Outdoor Unit
Low flow rate error
911
912
• in case of low flow rate in 30 sec during water pump signals is
ON(Starting)
• in case of low flow rate in 15 sec during water pump signals is ON(After
starting)
Normal flow rate error
• in case of normal flow rate in 10min during water pump signal is OFF
Hydro Unit
Hydro Unit
916
Mixing valve sensor error
Hydro Unit
919
Error that the set temperature for disinfection operation is not reached, or,
after reaching, the temperature fails to continue for the requested time
Hydro Unit
ENGLISH-52
Memo
03
OTHERS
ENGLISH-53
SAMSUNG ELECTRONICS CO., LTD.
107, Hanamsandan 6beon-ro, Gwangsan-gu, Gwangju-si, Korea 62218
Samsung Electronics
Service Department
PO Box 12987, Blackrock, Co. Dublin. Ireland
or
Blackbushe Business Park, Yateley, GU46 6GG. UK
This appliance is filled with R-32.
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