LG ARNH04GK2A2 User guide

www.lg.com
P/NO : MFL67086801
Please read this manual carefully before operating your set and retain it for future reference.
OWNER’S MANUAL
AIR CONDITIONER
[
Representative] LG Electronics Inc. EU Representative : LG Electronics European Shared
Service Center B.V. Krijgsman 1, 1186 DM Amstelveen, The Netherlands
[Manufacturer] LG Electronics Inc. Changwon 2nd factory 84, Wanam-ro, Seongsan-
gu, Changwon-si, Gyeongsangnam-do, KOREA
Original instruction
For more information, Refer to the CD or LG Web site (www.lg.com).
Hydro Kit (For Medium Temperature)
ENGLISH
ITALIANO
ESPAÑOL
FRANÇAIS
DEUTSCH
ΕΛΛΗΝΙΚΆ
PORTUGUÊS
NEDERLANDS
POLSKI MAGYAR
2 Hydro Kit
Hydro Kit Owner’s Manual
TABLE OF CONTENTS
FOR YOUR RECORDS
Write the model and serial numbers here:
Model #
Serial #
You can find them on a label on the side of each unit.
Installer's Name
Purchased Date
n
Staple your receipt to this page in the event you need it to prove date of purchase or for warranty issues.
READ THIS MANUAL
Inside you will find many helpful hints on how to use and maintain your
Hydro Kit
properly. Just a little preventive care on your part can save you a great deal of time and money over the life of your product.
You'll find many answers to common problems in the chart of troubleshooting tips. If you review our chart of
Troubleshooting Tips first, you may not need to call for service at all.
PRECAUTION
Contact the authorized service technician for repair or
maintenance of this unit.
• Contact the installer for installation of this unit.
Hydro Kit
is not intended for use by young children or
invalids without supervision.
• Young children should be supervised to ensure that
they do not play with
Hydro Kit
.
• When the power cable is to be replaced, replacement
work must be performed by authorized personnel only using only genuine replacement parts.
• Installation work must be performed in accordance
with the National Electric Code by qualified and authorized personnel only.
Safety Precautions .............................3
Product Introduction ..........................8
Owner's Instruction ..........................10
Using Thermostat .............................23
Maintenance and Service.................26
Safety Precaution
Owner’s Manual 3
Hydro Kit
ENGLISH
Safety Precautions
To prevent injury to the user or other people and property damage, the following instructions must be followed. n Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is
classified by the following indications.
WARNING
CAUTION
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage.
WARNING
Always ground the product.
• There is a risk of elec­tric shock.
Do not use a defective or underrated circuit breaker. Use this appliance on a dedi­cated circuit.
• There is risk of fire or electric shock.
Do not use a multi outlet. Always use this appliance on a dedicated circuit and breaker.
• It can cause electric shock or fire.
For electrical work, contact the dealer, sell­er, a qualified electri­cian, or an Authorized Service Center. Do not disassemble or repair the product by yourself.
• There is risk of fire or electric shock.
Always ground the product as per the wiring diagram. Do not connect the ground wire to gas or water pipes lightening rod or telephone ground wire.
• There is risk of fire or electric shock.
Install the panel and the cover of control box securely.
• There is risk of fire or electric shock due to dust , water etc.
Use the correctly rated breaker or fuse.
• There is risk of fire or electric shock.
Do not modify or extend the power cable. If the power cable or cord has scratches or skin peeled off or deteriorated then it must be replaced.
• There is risk of fire or electric shock.
For installation, removal or reinstalla­tion , always contact the dealer or an Authorized Service Center.
• There is risk of fire, electric shock, explo­sion, or injury.
4 Hydro Kit
Safety Precaution
Indoor/outdoor wiring connections must be secured tightly and the cable should be routed properly so that there is no force pulling the cable from the connec­tion terminals.
• Improper or loose con­nections can cause heat generation or fire.
Safely dispose off the packing materials. Like screws, nails, batteries, broken things etc after installation or service and then tear away and throw away the plastic packaging bags.
• Children may play with them and cause injury.
Make sure to check that the power device is not dirty, loose or broken and then Turn on the power.
Dirty, loose or broken power device can cause electric shock or fire.
Do not place a heater or other heating appli­ances near the power cable.
• There is risk of fire and electric shock.
Do not allow water to run into electric parts. Install the unit away from water sources.
• There is risk of fire, fail­ure of the product, or electric shock.
Do not store or use or even allow flammable gas or combustibles near the product.
• There is risk of fire.
Do not install the prod­uct on a defective installation stand. Be sure that the installa­tion area does not deteriorate with age.
• It may cause product to fall.
Never install the out­door unit on a moving base or a place from where it can fall down.
• The falling outdoor unit can cause damage or injury or even death of a person.
When the product is soaked (flooded or sub­merged) in water, contact an Authorized Service Center for repair before using it again.
• There is risk of fire or electric shock.
Be sure to check the refrigerant to be used. Please read the label on the product.
• Incorrect refrigerant can prevent the normal operation of the unit.
Don't use a power cord, a plug or a loose socket which is damaged.
• Otherwise it may cause a fire or electrical shock.
Do not touch , oper­ate, or repair the prod­uct with wet hands.
• There is risk of electric shock or fire.
Owner’s Manual 5
Hydro Kit
Safety Precaution
ENGLISH
Do not use the prod­uct in a tightly closed space for a long time. Perform ventilation regularly.
• Oxygen deficiency could occur and hence harm your health.
Do not open the front cover or grille of the product during opera­tion. (Do not touch the electrostatic filter, if the unit is so equipped.)
• There is risk of physical injury, electric shock, or product failure.
If strange sounds, smell or smoke comes from product, immedi­ately turn the breaker off or disconnect the power supply cable.
• There is risk of electric shock or fire.
Ventilate the product room from time to time when operating it together with a stove, or heating element etc.
• Oxygen deficiency can occur and hence harm your health.
Turn the main power off when cleaning or repairing the product.
• There is risk of electric shock.
Take care to ensure that nobody especial­ly kids could step on or fall onto the out­door unit.
• This could result in per­sonal injury and product damage.
Take care to ensure that power cable could not be pulled out or damaged dur­ing operation.
• There is risk of fire or electric shock.
Do not place ANY­THING on the power cable.
• There is risk of fire or electric shock.
When flammable gas leaks, turn off the gas and open a window for ventilation before turn­ing the product on.
• Do not use the tele­phone or turn switches on or off. There is risk of explosion or fire.
In outdoor unit the step-up capacitor sup­plies high voltage elec­tricity to the electrical components. Be sure to discharge the capacitor completely before con­ducting the repair work.
• An charged capacitor can cause electrical shock.
When installing the unit, use the installa­tion kit provided with the product.
• Otherwise the unit may fall and cause severe injury.
Be sure to use only those parts which are listed in the service parts list. Never attempt to modify the equipment.
The use of inappropriate parts can cause an elec­trical shock, excessive heat generation or fire.
Safety Precaution
6 Hydro Kit
CAUTION
Two or more people must lift and transport the product.
• Avoid personal injury.
Do not install the prod­uct where it will be exposed to sea wind (salt spray) directly.
• It may cause corrosion on the product.
Keep level even when installing the product.
• To avoid vibration or noise.
Do not install the product where the noise or hot air from the outdoor unit could damage or disturb the neighborhoods.
• It may cause a problem for your neighbors and hence dispute.
Always check for gas (refrigerant) leakage after installation or repair of product.
• Low refrigerant levels may cause failure of product.
Do not use the product for special purposes, such as preserving foods, It is not a precision refrigeration system.
• There is risk of damage or loss of property.
Do not block the inlet or outlet of air flow.
• It may cause product failure.
Use a soft cloth to clean. Do not use harsh detergents, solvents or splashing water etc .
• There is risk of fire, electric shock, or dam­age to the plastic parts of the product.
Do not step on or put anyting on the prod­uct. (outdoor units)
• There is risk of personal injury and failure of product.
Do not insert hands or other objects through the air inlet or outlet while the product is operating.
• There are sharp and moving parts that could cause personal injury.
Be cautious when unpacking and installing the product.
• Sharp edges could cause injury.
If the refrigerant gas leaks during the repair, do not touch the leakaing refriger­ant gas.
• The refrigernat gas can cause frostbite (cold burn)
Safety Precaution
Owner’s Manual 7
Hydro Kit
ENGLISH
Do not tilt the unit when removing or uninstalling it.
• The condensed water inside can spill.
If the refrigerant gas leaks during the instal­lation, ventilate the area immediately.
• Otherwise it can be harmfull for your health.
Dismantling the unit, treatment of the refrig­erant oil and eventual parts should be done in accordance with local and national standards.
Do not expose your skin or kids or plants to the cool or hot air draft.
• This could harm to your health.
Use a firm stool or ladder when cleaning, maintaining or repairing the product at an height.
• Be careful and avoid personal injury.
Product Introduction
Product Introduction
Typical Installation Scene
Use of power supply separate power for the indoor unit. (Do not connect and use from the power terminal of the outdoor unit.)
CAUTION
8 Hydro Kit
Water Out
Gas side
Liquid side
Water In
Drain
h Grey painted functions may not be operated and displayed.
Remote Controller
ZDWHU
WHPS
RSHU
KHDWLQJ
PRGH
Owner’s Manual 9
Hydro Kit
Product Introduction
ENGLISH
No Name
1 Display 2 Change Temperature Button 3 Water Heating Enable / Disable Button 4 Power Button 5 Operation Mode Selection Button 6 Silent Mode On / Off Button 7 Temperature Setting Mode Button 8 Temperature View Mode Button
9 Function Setting Button 10 Programming Button 11 Direction Button (Up, Down, Left, Right) 12 Set / Clear button 13 ESC Button
ڸ
ۀ ڿ
ھ ڽ
ہ ۂ
WHPS
ZDWHU
KHDWLQJ
RSHU
PRGH
ڹ ں
ڻ
ڼ
ۃ
ۄ
10 Hydro Kit
Owner's instruction
WATER PUMP
This icon indicates that the water pump is active.
AUXILIARY SOLAR THERMAL PUMP
This icon indicates that auxiliary solar thermal pump is active. NOTE : As installation of auxiliary solar thermal pump is not compulsory but recommendato­ry according to field condition, this icon can be seen although no auxiliary solar thermal pump is installed.
DEFROSTING
This icon indicates that the defrost mode is active. In space heating operation or sanitary water tank heating operation, freezing of the out­door heat exchanger may be occur due to low outdoor temperature and humidity. If this risk occurs, the product goes into defrost operation. It reverses the cycle and takes heat from the indoor system to prevent freezing of the outdoor system. This mode is auto­matically operating.
MAINTAIN LOWEST TEMPERATURE
The purpose of this mode is maintaining the temperature to prevent damage by freezing of water pipe.
OUTDOOR
This icon indicates that the outdoor unit is active.
CHILD LOCK
NO FUNCTION
Monitoring Information
Owner's Instruction
Owner's instruction
CENTRAL CONTROLLER
This icon indicates that the product is controlled by the central controller.
THERMOSTAT
This icon indicates connection with thermostat.
SLIGHT TROUBLE
This icon indicates that slight trouble occurs.
HEAVY TROUBLE
This icon indicates that heavy trouble occurs.
Owner’s Manual 11
Hydro Kit
ENGLISH
12 Hydro Kit
Selecting Target Temperature
j Note
: Increase 1°C or 2°F per one time pressing
: Decrease 1°C or 2°F per one time pressing
• We can change the temperature range of each mode on installation setting mode. Please refer to Function Code 11 to 15.
• Room Temperature setting is available when Remote Room Air Sensor (sold separately) is installed. Please refer to Function Code 03.
• Sanitary Water Tank temperature setting is available when Sanitary Water Tank is installed.
Owner's instruction
Mode Change
Turn on the product and select operation mode.
Operation Mode
• Cooling Operation - The product yields cool water to use in under floor cooling or FCU cooling.
• Heating Operation - The product yields hot water to use in under floor heating or FCU heating.
• Weather dependent Heating Operation - In this mode, heating setpoint is automatically determined by pre-defined temperature profile.
1
Press Power Button to turn on the product.
2
Press OPER MODE Button to select each operation mode.
Cooling operation Heating operation Weather dependent
operation
1
Press SET TEMP Button to select each operation mode.
2
Adjust desired temperature by pressing Change Temperature buttons on each mode.
Room temperature Water temperature Sanitary Water Tank
temperature
To raise the Temperature
To lower the Temperature
Owner's instruction
Weather-dependent Operation
This mode is only applied to heating. In order to save energy and to give highest comfort, setting temperature will follow outside tempera-
ture. If outdoor temperature decreases, heating capacity for the house will increase automatically in order to keep same room temperature. All parameters will be set by installer during start-up proce­dure and will be adapted to the site characteristic.
Owner’s Manual 13
Hydro Kit
ENGLISH
1
Press OPER MODE Button to select Weather-dependent operation mode.
2
Adjust the desired temperature level by pressing Change Temperature buttons.
1
Press repeatedly View Temperature Button to select each Temperature. (Whenever press View Temperature button, the room temperature will be displayed during 5 seconds.)
View Temperature
Temperature Temperature Range Displayed as
below 11°C(51°F) Lo
Air 11°C(51°F) ~ 39°C(102°F) actual temperature
above 39°C(102°F) Hi
below 0°C(32°F) [*below 40°C(104°F) ] Lo
Water
0°C(32°F) ~ 92°C(197°F) [*40°C(104°F) ~ 120°C(248°F) ]
actual temperature
above 92°C(197°F) [*above 120°C(248°F) ]
Hi
[* : Solar Thermal Temperature]
: Weather Dependent
operation icon
Ex)
Decreasing temperature profile by 3°C (based on room air temperature) <Temperature adjust step (unit : °C)>
-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5
: View Room Temperature
: View Inlet Temperature
: View Outlet Temperature
:
View Sanitary Water Temperature (ONLY displayed when sanitary water heating mode)
:
View Solar Thermal Temperature (ONLY displayed when sanitary water heating mode)
Hot
Cold
This function is to prevent children or other people from using controller.
Child Lock
14 Hydro Kit
Owner's instruction
1
Press Function Setting Button to enter user setting mode. (The segment will be flashed)
2
Press set/clear button to finish the selection. The segment will disappear.
4
To release this setting, press function Setting button until icon flashes and then enter set­ting/clear button.
3
During Child Lock, icon and 'CL' will be dis­played during 3 seconds whenever entering any kind of buttons except for view temperature button and setting/clear button.
Owner's instruction
Owner’s Manual 15
Hydro Kit
ENGLISH
When the error is occurs on indoor unit, the error code will be displayed on remote controller.
Slight trouble
A problem is found inside the indoor unit. In most case, this trouble is concerned with sensor problems. In this case, Hydro Kit can operate in an emergency mode (only Heating operation).
Heavy trouble
A problem is found inside the outdoor unit.
Critical error
On critical error, the product will stop unconditionally. At this time, CH' and error code No. keep display by turns.
Error code display
<Display>
<Display>
<Display>
You can set current time.
Setting Current Time
1
Keep pressing programming button twice successively to enter setting current time mode.
2
Press left, right button to adjust the cur­rent day.
3
Press down button to move to AM/PM part and adjust it. (The AM/PM segment will be flashed)
4
Press right button to move to "Hour" part. (the "Hour" segment will be flashed)
6
Press right button to move to "Minute" part. (the "Minute" segment will be flashed)
7
Press up, down button to adjust the Minute.
8
If you finish the setting, press set/clear button.
9
Press exit button to exit or system will automatically release without any input 25 seconds.
5
Press up, down button to adjust the Hour.
Owner's instruction
16 Hydro Kit
Owner's instruction
Owner’s Manual 17
Hydro Kit
ENGLISH
Programming : Setting Simple Reservation
You can easily turn-on reservation.(ONLY enable when unit is stand-by.)
1
Press programming button to enter the Programming mode. (the segment will be flashed)
2
Press up, down button to adjust the reser­vation time.
3
If you finish the setting, press setting/cancel button to complete program­ming
4
Press exit button to exit or system will automatically release without any input after 25 seconds.
1
Press programming button to enter the Programming mode. Press Programming button repeatedly to select [sleep reserva­tion]. (the segment flashing)
2
Press up, down button to adjust the reser­vation time.
3
If you finish the setting, press setting/cancel button to complete program­ming.
4
Press exit button to exit or system will automatically release without any input after 25 seconds.
Programming : Setting Sleep Reservation
You can easily turn-off(sleep) reservation.(ONLY enable when unit is operating.)
Programming : Setting ON Reservation
This function is able to turn-on after a setting time.
1
Press programming button to enter the Programming mode. Press Programming button repeatedly to select [on reservation]. (the segment flashing)
2
Press up, down button to adjust AM/PM.
3
Press right button to move to "Hour" part. (the "Hour" segment will be flashed)
4
Press up, down button to adjust the Hour.
6
Press up, down button to adjust the Minute.
7
If you finish the setting, press setting/cancel button to complete programming.
8
Press exit button to exit or system will automatically release without any input after 25 seconds.
5
Press right button to move "Minute" part. (the "Minute" segment will be flashed)
Owner's instruction
18 Hydro Kit
Owner's instruction
Programming : Setting OFF Reservation
This function is able to turn-off after a setting time.
1
Press programming button to enter the Programming mode. Press Programming button repeatedly to select [off reservation]. (the segment flashing)
2
Press up, down button to adjust AM/PM.
3
Press right button to move to "Hour" part. (the "Hour" segment will be flashed)
4
Press up, down button to adjust the Hour.
6
Press up, down button to adjust the Minute.
7
If you finish the setting, press setting/cancel button to complete programming.
8
Press exit button to exit or system will automatically release without any input after 25 seconds.
5
Press right button to move to "Minute" part. (the "Minute" segment will be flashed)
Owner’s Manual 19
Hydro Kit
ENGLISH
Programming : Weekly Reservation
The weekly reservation is active after setting current time.
1
Press programming button to enter the Programming mode. Press Programming button repeatedly to select [Weekly reserva­tion]. (the segment flashing)
2
Press left, right button to adjust the cur­rent day.
3
Press up, down button to adjust the action number.
4
Press right button to move to "Hour" part on ON Time section. (The "Hour" segment will be flashed)
6
Press right button to move to "Minute" part on Start Time section. (The "Minute" segment will be flashed)
7
Press up, down button to adjust the Minute on Start Time section.
8
Press right button to move to "Hour" part on OFF Time section. (The "Hour" segment will be flashed)
5
Press up, down button to adjust the Hour on Start Time section.
Start Time Section
Off Time Section
Owner's instruction
20 Hydro Kit
Owner's instruction
Action
Start Time
From
To
Off Time
9
Please refer to the process from No.5 to No.7 for setting OFF Time. It is the same method.
10
If you finish the setting, press set­ting/cancel button to complete pro­gramming. The under bar segment will be created, when finished.
11
Please refer to the process from No.2 to No.10 for setting other day weekly program. It is the same method.
12
Press exit button to exit or system will automatically release without any input after 25 seconds.
Owner’s Manual 21
Hydro Kit
ENGLISH
<Note>
Description of weekly reservation
<Start Time Section> <Off Time Section>
<Start Time Section> <Off Time Section>
h Two actions per weekday can be programmed, in total 14 actions
22 Hydro Kit
Programming : Holiday Reservation
This function is to automatically stop the machine working on some days.
1
Press programming button to enter the Programming mode. Press Programming button repeatedly to select [Holiday reser­vation]. (the segment flashing)
2
Press left, right button to adjust the holi­day.
3
When you press set/clear button after finishing the selection, the day selected will disappear.
4
Press exit button to exit or system will automatically release without any input after 25 seconds.
Owner's instruction
Owner’s Manual 23
Hydro Kit
Using Thermostat
Using Thermostat
1. Some electro-mechanical type thermostat has internal delay time to protect compressor.
In that case, mode change can takes time more than user's expectation. Please read ther­mostat manual carefully if the product does not response quickly.
2.
Setting temperature range by thermostat can be different with that of the product. The heating or cooling set temperature should be chosen within the setting temperature range of the product.
CAUTION
The term "thermostat", which is widely used in this chapter, is a kind of 3rd party accessory. LG Electronics does not supply thermostat. but it can be supplied by 3rd party manufacturers. Room thermostat can be used for easy and convenience control. To utilize thermostat more efficient­ly and correctly, this chapter presents information about using thermostat.
How to use Thermostat
Operating Thermostat with Remote Controller
To find how to turn on and off, how to set target temperature, how to change operating mode, etc, please refer to thermostat operating manual provided by thermostat manufacturer.
• Following features are permitted when thermostat is installed :
SET TEMP button
VIEW TEMP button
• Temperature adjust button (*)
Sanitary water heating Enable / Disable
(*) : The product does not turn on / off according to the setting temperature at the remote con-
troller. It turns on / off according to the thermostat signal.
• Following features are NOT permitted when thermostat is installed :
Operating mode (cooling/ heating/ weather-dependent) selection
• Time scheduling
Operation On / Off
ENGLISH
Using Thermostat
Emergency Operation
• Definition of terms
- Trouble : a problem which can stop system operation, and can be resumed temporally under lim­ited operation without certificated professional's assist.
- Error : problem which can stop system operation, and can be resumed ONLY after certificated professional's check.
- Emergency mode : temporary heating operation while system met Trouble.
• Objective of introducing 'Trouble'
- Not like airconditioning product, hydro kit is generally operated in whole winter season without any system stopping.
- If system found some problem, which is not critical to system operating for yielding heating ener­gy, the system can temporarily continue in emergency mode operation with end user's decision.
• Classified Trouble
- Trouble is classified into two levels according to the seriousness of the problem : Slight Trouble and Heavy trouble
- Slight Trouble : a problem is found inside the indoor unit. In most case, this trouble is concerned with sensor problems. The outdoor unit is operating under emergency mode operation condition which is configured by DIP switch No. 4 of the indoor unit PCB.
- Heavy trouble : a problem is found inside the outdoor unit.
- Option Trouble : a problem is found for option operation such as water tank heating. In this trou­ble, the troubled option is assumed as if It does not cause in the Product.
• Emergency operation level
- When system met trouble, it stops operation and waits for user’s decision : Calling service center or starting emergency operation.
- To start emergency operation, user simply pushes ON / OFF button once more.
- Two different levels are prepared for emergency operation : High temperature cycle and low tem­perature cycle.
- In emergency operation mode, user can not adjust target temperature.
24 Hydro Kit
DIP
Switch
Target
Leaving Water
Temperature
Target
Room Air
Temperature
Target
Sanitary Water
Temperature
High temperature cycle OFF 50℃(122℉) 24℃(75℉) 50℃(122℉)
Low temperature cycle ON 30℃(86℉) 19℃(66℉) 50℃(122℉)
Using Thermostat
• Following features are permitted in emergency operation :
- Operation On/Off
- VIEW TEMP button(*)
- Temperature adjust button (*)
- Sanitary water heating Enable / Disable
(*) : Temperature measured by failed sensor is displayed as ‘- -’.
The product does not turn on / off according to the setting temperature at the remote controller. It turns on / off according to the thermostat signal.
• Following features are NOT permitted in emergency operation :
- Operating mode (cooling/ heating/ weather-dependent) selection
- Time scheduling
- SET TEMP button
• Duplicated trouble : Option trouble with Slight or Heavy trouble
- If option trouble occurs with slight (or heavy) trouble at the same time, the system puts higher pri­ority to slight (or heavy) trouble and operates as if slight (or heavy) trouble is occurred.
- Therefore, sometimes sanitary water heating can be impossible in emergency operation mode. When sanitary water is not warming up while emergency operation, please check if sanitary water sensor and related wiring are all Ok.
• Emergency operation is not automatically restarted after main electricity power is reset.
- In normal condition, the product operating information is restored and automatically restarted after main electricity power is reset.
- But in emergency operation, automatic re-start is prohibited to protect the product.
- Therefore, user must restart the product after power reset when emergency operation has been running.
Owner’s Manual 25
Hydro Kit
ENGLISH
Maintenance and Service
Maintenance and Service
Maintenance activities
In order to ensure optimal availability of the unit, a number of checks and inspections on the unit and the field wiring have to be carried out at regular intervals, preferably yearly. This maintenance should be carried out by your local agreed technician.
Call the service immediately in the following situations
1. Anything abnormal such as burning smell, loud noise etc. happen. Stop the unit and turn the breaker off. Never try to repair by yourself or restart the system in such cases.
2. Main power cord is too hot or damaged.
3. Error code is generated by self diagnosis.
4. Water leaks from indoor unit.
5. Any switch, breaker (safety, earth) or fuse fails to work properly
User must carry routine checkup & cleaning to avoid unit’s poor performance. In case of special situation, the job must be carried out by the only service person.
When the unit is not going....
• If the product is not used for long time, we strongly recommend NOT TO SWITCH OFF THE POWER SUPPLY to the product.
• If power is not supplied, some special product-protecting actions (such as water pump anti-locking) will not performed.
CAUTION
26 Hydro Kit
Maintenance and Service
Owner’s Manual 27
Hydro Kit
ENGLISH
Operational instructions
n Do not disconnect the power supply of Hydro Kit during the operation.
Stop the Hydro Kit followed by outdoor unit and then only remove the power supply.
If you remove the power supply of the Hydro Kit in the mid of operation, it will leads to damage of the product by freezing and bursting of Plate type Heat Exchanger.
n Do not remove the power supply even at the occurrence of “CH14” Error.
As the error is due to the shortage of water flow, please eliminate any sludge and scales inside the water tubes to ensure free water pumping, remove foreign particles(dust, sand, trash, rusted pieces) from the water tubes along with cleaning the strainer. After cleaning the strainer, to remove the error message (not displayed), turn off the outdoor unit followed by Hydro Kit and then disconnect power supply of Hydro Kit. And then connect power supply and restart the unit for the normal operation.
The service will be charged if the system failure is due to strainer blockage. Strainer cleaning period: Once in every 3 months and whenever CH14 error occurs.
n If the system stopped and displaying any error message(CH ???) please follow below procedure.
Do not remove the power supply of the Hydro Kit. Contact L.G service centre.
n Do not change the water pipes randomly. When changing the water pipes there is a possibility of
foreign material entry and bubble formation as well. This leads to freezing of Plate type heat exchanger of Hydro Kit. When it is essential to change the water pipes, proceed only after separating the pipes from Hydro Kit. The inner side of the new pipes must be washed thoroughly to remove the foreign materials and then connect the pipes with the Hydro Kit.
WARNING
WARNING
28 Hydro Kit
Maintenance and Service
Troubleshooting Tips! Save time and money!
Check the following points before requesting repairs or service.... If the malfunction persist, please
contact your dealer.
Case Explanation
Hydro Kit does not operate.
• Have you made a mistake in timer operation?
• Has the fuse blown or has the circuit breaker been tripped?
The room has a peculiar odor.
• Check that this is not a damp smell exuded by the walls, carpet, furniture or cloth items in the room.
Hydro Kit does not operate for about 3 minutes when restart.
• This is the protector of the mechanism.
• Wait about three minutes and operation will begin.
Does not cool or heat effectively.
• The room may have been very hot when the Hydro Kit was first turned on. Allow time for it to cool down.
• Has the setting temperature been set incorrectly?
The unit operation is noisy.
• Refrigerant flow sound
- While the system is being started or stopping, sound from the
refrigerant flow may be heard.
• Sound for the indoor unit heat exchanger
- During the cooling operation, a sound may be heard from the
indoor unit heat exchanger due to water freezing or melting.
• Water noise
- During starting or stopping of the unit, noise can appear in
water piping
• During defrost
- Noise can appear in unit due to defrosting of water.
Steam is raised in outdoor unit.
• Steam from outdoor heat exchanger
- During defrosting operation, ice on the outdoor heat exchanger
is melted, resulting in making steam.
Remote controller display is faint, or no display at all.
• Has the circuit breaker been tripped?
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