Control Unit
RC120MHXGA
RC140MHXGA
RC160MHXGA
RC090MHXEA
RC120MHXEA
RC140MHXEA
RC160MHXEA
Air to Water Heat Pump
-Mono Control Unit
user manual
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E S F I P D DB98-00000A(1)
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RC120MHXGA_IB_E_00000A(1).indd 53
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WARNING
FOR POWER SUPPLY
Remove all foreign substances such as dust or water from the power plug terminals and contact points using a dry cloth on
a regular basis.
• Unplug the power plug and clean it with a dry cloth.
• Failing to do so may result in electric shock or fire.
Plug the power plug into the wall socket in the right direction so that the cord runs towards the floor.
• If you plug the power plug into the socket in the opposite direction, the electric wires within the cable may be damaged and this may result
in electric shock or fire.
When the appliance or power plug or power cord is damaged, contact your nearest service center
Plug the power plug into the wall socket firmly. Do not use a damaged power plug, damaged power cord or loose
wall socket.
• This may result in electric shock or fire.
Do not pull the power cord, when unplugging the power plug.
• Unplug the power plug by holding the plug.
• Failing to do so may result in electric shock or fire.
Do not pull or excessively bend the power cord. Do not twist or tie the power cord. Do not hook the power cord over
a metal object, place a heavy object on the power cord, insert the power cord between objects, or push the power
cord into the space behind the appliance.
• This may result in electric shock or fire.
CAUTION
FOR POWER SUPPLY
When not using the air conditioner for a long period of time or during a thunder/lightning storm, cut the power at the
circuit breaker.
• Failing to do so may result in electric shock or fire.
WARNING
FOR USING
If the appliance is flooded, please contact your nearest service center.
• Failing to do so may result in electric shock or fire.
If the appliance generates a strange noise, a burning smell or smoke, unplug the power plug immediately and
contact your nearest service center.
• Failing to do so may result in electric shock or fire.
In the event of a gas leak (such as propane gas, LP gas, etc.), ventilate immediately without touching the power plug.
Do not touch the appliance or power cord.
• Do not use a ventilating fan.
• A spark may result in an explosion or fire.
To reinstall the air conditioner, please contact your nearest service center.
• Failing to do so may result in problems with the product, water leakage, electric shock, or fire.
• A delivery service for the product is not provided. If you reinstall the product in another location, additional construction expenses and an
installation fee will be charged.
• Especially, when you wish to install the product in an unusual location such as in an industrial area or near the seaside where it is exposed
to the salt in the air, please contact your nearest service center.
Do not touch the power plug or the circuit breaker with wet hands.
• This may result in electric shock.
Do not unplug the power plug or turn the air conditioner off with the circuit breaker while it is operating.
• Plugging the power plug into the wall outlet or turning the air conditioner on from the circuit breaker may cause a spark and result
in electric shock or fire.
After unpacking the air conditioner, keep all packaging materials well out of the reach of children, as packaging
materials can be dangerous to children.
• If a child places a bag over its head, it may result in suffocation.
Do not insert your fingers or foreign substances into the outlet when the air conditioner is operating.
• Take special care that children do not injure themselves by inserting their fingers into the product.
Do not touch the air flow blade with your hands or fingers during the heating operation.
• This may result in electric shock or burns.
Do not insert your fingers or foreign substances into the air inlet/outlet of the air conditioner.
• Take special care that children do not injure themselves by inserting their fingers into the product.
Do not strike or pull the air conditioner with excessive force.
• This may result in fire, injury, or problems with the product.
Safety information _05
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RC120MHXGA_IB_E_00000A(1).indd
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Safety information
WARNING
FOR USING
Do not place an object near the outdoor unit that allows children to climb onto the machine.
• This may result in children seriously injuring themselves.
Do not use this air conditioner for long periods of time in badly ventilated locations or near infirm people.
• Since this may be dangerous due to a lack of oxygen, Open a window at least once an hour.
If any foreign substance such as water has entered the appliance, cut the power by unplugging the power plug and
turning the circuit breaker off and then contact your nearest service center.
• Failing to do so may result in electric shock or fire.
Do not attempt to repair, disassemble, or modify the appliance yourself.
• Do not use any fuse (such as cooper, steel wire, etc.)other than the standard fuse.
• Failing to do so may result in electric shock, fire, problems with the product, or injury.
CAUTION
FOR USING
Do not place objects or devices under the indoor unit.
• Water dripping from the indoor unit may result in fire or property damage.
Check that the installation frame of the outdoor unit is not broken at least once a year.
• Failing to do so may result in injury, death or property damage.
Max current is measured according to IEC standard for safety and current is measured according to ISO standard for
energy efficiency.
Do not stand on top of the appliance or place objects (such as laundry, lighted candles, lighted cigarettes, dishes,
chemicals, metal objects, etc.) on the appliance.
• This may result in electric shock, fire, problems with the product, or injury.
Do not operate the appliance with wet hands.
• This may result in electric shock.
Do not spray volatile material such as insecticide onto the surface of the appliance.
• As well as being harmful to humans, it may also result in electric shock, fire or problems with the product.
Do not drink the water from the air conditioner.
• The water may be harmful to humans.
Do not apply a strong impact to the remote controller and do not disassemble the remote controller.
Do not touch the pipes connected with the product.
• This may result in burns or injury.
Do not use this air conditioner to preserve precision equipment, food, animals, plants or cosmetics, or for any other
unusual purposes.
• This may result in property damage.
Avoid directly exposing humans, animals or plants from the air flow from the air conditioner for long periods of time.
• This may result in harm to humans, animals or plants.
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.
WARNING
FOR CLEANING
Do not clean the appliance by spraying water directly onto it. Do not use benzene, thinner or alcohol to clean the appliance.
• This may result in discoloration, deformation, damage, electric shock or fire.
Before cleaning or performing maintenance, unplug the air conditioner from the wall socket and wait until the fan stops.
• Failing to do so may result in electric shock or fire.
CAUTION
FOR CLEANING
Take care when cleaning the surface of the heat exchanger of the outdoor unit since it has sharp edges.
• To avoid cutting your fingers, wear thick cotton gloves when cleaning it.
Do not clean the inside of the air conditioner by yourself.
• For cleaning inside the appliance, contact your nearest service center.
• When cleaning the internal filter, refer to the descriptions in the ‘Cleaning the air conditioner’ section.
• Failure to do may result in damage, electric shock or fire.
06_ Safety information
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STATUS INDICATOR
Mode
Status
Display
Function
Status
Compressor On
This icon indicates that the compressor in the outdoor
unit is running.
Back-up heater
On
This icons indicate that the backup heater of the unit
is operating, when there is a high demand for heating
capacity. The backup heater provides extra heating
capacity in case of low ambient outdoor temperature
(high heating load).
Booster heater
On
This icon indicates that the booster heater is active.
The booster heater provides auxiliary heating for the
domestic hot water tank. The booster heater is located
in the domestic hot water tank. The icon is not used
when the domestic hot water tank is not installed.
Solar thermal
panel On
It indicates when the solar panel is powered on. DHW
mode is stopping while solar panel is on in order to save
your energy cost.
Back up boiler
On
The Back up boiler shall start to work as soon as
outdoor temperature reach to the targeted temperature.
Users can adjust the temperature to allow the back up
boiler work. The icon shall not be displayed without the
Installation of the back up boiler.
Water pump On
This icon indicates that the circulation pump is active.
Domestic water
On
This icon indicates when the domestic water heating
mode is operating.
Defrost
This icon indicates that the defrost mode is active.
operation On
Anti freezing
operation On
The system automatically maintains the water
temperature above a freezing point to prevent from
freezing-fracture of piping system.
Sanitary
operation On
This function disinfects the DHW tank by periodically
heating the domestic water to a specific temperature.
Checking the function _13
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DOMESTIC WATER HEATING OPERATION
In this mode, domestic water heating will be activated as required by the water temperature set point.
• The set point can be set manually.
1. Press Power(DHW mode) button to turn on DHW tank.
The priority between heating/cooling/water-law and
DHW modes are depending upon the user’s input of
Field Setting Value of Wired Remote Controller.
The default priority is on the DHW mode.
• This mode can not be used when the DHW tank is
not installed.
• The Power(Space mode) button and the
Power(DHW mode) button can be selected at the
same time.
• In order to provide domestic hot water throughout the day, it is advised to keep the
domestic water heating operation on continuously.
• When the
icon is displayed, hot water is delivered to the DHW tank by the solar
panel. The operation between solar panel and heat pump can be determined by using
Wired Remote Controller’s Field Setting Mode.
2. Press Mode(DHW mode) button until required operating mode is displayed.
The heat pump will run on selected domestic water heating mode.
• Economic domestic water heating
• Standard domestic water heating
• Powerful domestic water heating
(
may operate)
(
operate immediately)
3. Press Up or Down button to set the desired temperature.
The temperature can be set between 30ºC and 70ºC.
The temperature is adjusted by 0.5ºC.
Operating basic function _19
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OUTING MODE
If you want to take a vacation, you can use the Outing hot key. When this mode is enabled, it is
assured that the heat pump maintains your house at a lower temperature to save energy cost.
1. Press Outing Hot key.
The heat pump delivers heat at a low temperature.
If the Power(Space mode) button has not been
turned on, this key does not work.
To cancel the outing mode
1. Press Outing Hot key once again to exit.
The heat pump is turned on a normal operation.
It will return to a normal heating mode or DHW mode.
Operating hot key function _21
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Operating advanced function
SETTING THE TIME
Your hydro unit contains a clock used to start and stop the unit automatically at a given time.
You must set the time when you purchase the hydro unit or reset the main power.
1. Push the Set button for 3 seconds.
• Mode : Normal operation.
• When setting the time, you can only use Up,
Down, Set, Cancel/Delete button.
• To cancel the setting, press the Cancel/Delete
button.
2. Set the day by pressing Up or Down button.
The ‘day’ indicator will blink. Set the day and press Set
button to save the setting.
3. Set the hour by pressing Up or Down button.
The ‘hour’ indicator will blink. Set the hour and press
Set button to save the setting.
4. Set the minute by pressing Up or Down button.
The ‘minute’ indicator will blink. Set the minute and
press Set button to save the setting.
After setting the minute, the operation returns to normal.
22_ Operating advanced function
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Operating advanced function
SETTING THE DAILY SCHEDULE
Set the daily schedule to reserve On / Off timer of DHW(Eco/Std/Power) and Silent mode.
At most 15 schedules may be set for day.
• If the field setting is for no use DHW and use other manufacturer tank, it is impossible to
reserve “DHW” mode.
• If daily schedule reserved 15 schedules is on the same day, it is impossible to reserve.
In that case, when pressing the Daily button, change the View mode of reservation.
• It is impossible to reserve several times for the same time.
1. Press the Daily button.
The mode changes to the Daily schedule.
In this mode, you can only use Up, Down, Daily,
Set, Cancel/Delete button.
To cancel the setting, press Cancel button.
2. Set the On/Off by pressing Up, Down button.
The ‘On/Off’ indicator will blink. Set the On/Off status
and press Set button to save the setting.
3. Set the operation mode by pressing Up or Down
button.
The ‘operation indicator’ will blink. Set the operation
mode and press Set button to save the setting.
• When using other company DHW Tank or setting no use DHW mode, the reservation
mode is fixed to “Silent” mode.
• When setting use DHW mode, the mode is changed as followings with Up or
Down button.
- “On” Mode ;
Pwr mode (
(
)
) is selected in “Booster heater On”
- “Off” Mode ;
26_ Operating advanced function
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4. Set the hour by pressing the Up or Down button.
The ‘hour’ indicator will blink. Set the hour and press
Set button to save the setting.
5. Set the minute by pressing the Up or Down button.
The ‘minute’ indicator will blink. Set the minute and
press Set button to save the setting.
6. Confirm the Schedule.
After step 5, all indicators are blinking except
“Reservation No”, “Daily”. Then press Set button.
• On this step, you can only use Set or Cancel/Delete button.
• If there is a reservation on the same day and time, it will not be confirmed and
“Not Available” indicator will blink for 3 seconds. In this case, go back to the step 4.
Viewing the Daily Schedule (On / Off) Display
On Reservation
Off Reservation
Operating advanced function _27
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Operating advanced function
SETTING THE DAILY SCHEDULE
Deleting the daily schedule
1. Select the schedule from Reservation View Mode.
2. Push the Cancel/Delete button for 3 seconds.
3. The LCD pictures change to the reservation mode after deleting the schedule.
Operating the daily schedule
1. Operate automatically according to schedule.
2. If On schedule starts during the Urgent DHW mode, the Urgent DHW mode will be turned
off.
In the following conditions, the schedule function will not operate.
• Outing
• Tracking of communication
• Installation of room thermostat
• If the field setting is set for without DHW or another manufacturers tank is used, it is not
possible to reserve DHW mode.
• If the field setting is set for not using the booster heater, it is not possible to reserve Pwr
DHW mode.
28_ Operating advanced function
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