LG ARNH04GK3A4.ENWALEU Owner's manual

LG ARNH04GK3A4.ENWALEU Owner's manual
AIR-TO-WATER
HEAT PUMP
NEDERLANDS
Please read this manual carefully before operating your set and retain
it for future reference.
ENGLISH ITALIANO ESPAÑOL FRANÇAIS DEUTSCH ΕΛΛΗΝΙΚΆ ČEŠTINA
РУССКИЙ ЯЗЫК
OWNER’S MANUAL
Hydro Kit (For Medium Temperature)
001
MFL67086810
Rev.03_020819
www.lg.com
Copyright © 2018 - 2019 LG Electronics Inc. All Rights Reserved.
LIMBA ROMÂNĂ
[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
POLSKI
Original instruction
Hydro Kit Owner’s Manual
TABLE OF CONTENTS
Safety Precautions .............................3
Product Introduction ..........................8
FOR YOUR RECORDS
Write the model and serial numbers here:
Model #
Operation Setting..............................10
Serial #
Temperature Setting.........................12
You can find them on a label on the side of each
unit.
Low Noise mode ...............................15
Installer's Name
Wi-Fi pairing ......................................17
Purchased Date
Defrost Mode.....................................19
Lock Setting ......................................21
Date setting .......................................23
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
Schedule Setting...............................29
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.
Using Thermostat .............................31
You'll find many answers to common problems in the
chart of troubleshooting tips. If you review our chart of
Maintenance and Service.................34
Troubleshooting Tips first, you may not need to call for
service at all.
Timer Setting.....................................24
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.
• 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.
• 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.
2 Hydro Kit
Safety Precaution
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
This symbol indicates the possibility of death or serious injury.
CAUTION
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.
Hydro Kit Owner’s Manual 3
ENGLISH
Safety Precautions
Safety Precaution
• For installation, removal or reinstallation , always contact the dealer or
an Authorized Service Center.
- There is risk of fire, electric shock, explosion, or injury.
• 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.
• 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.
• 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.
4 Hydro Kit
Safety Precaution
Hydro Kit Owner’s Manual 5
ENGLISH
- 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.
• 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.
• 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.
Safety Precaution
- 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.
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.
6 Hydro Kit
Safety Precaution
Hydro Kit Owner’s Manual 7
ENGLISH
• 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)
• 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.
• 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.
• Children should be supervised to ensure that they do not play with the
appliance.
Product Introduction
Product Introduction
Typical Installation Scene
<Type 1>
Water Out
Gas side
Liquid side
Water In
Drain
<Type 2>
Communication
Cable
Water Out
Communication
Cable
Power Cable
Gas Side
Liquid Side
Water In
Power Cable
Gas Side
Liquid Side
Water Out
Water In
CAUTION
Use of power supply separate power for the indoor unit. (Do not connect and use
from the power terminal of the outdoor unit.)
8 Hydro Kit
Product Introduction
ENGLISH
Remote Controller
Operation display
window
50
Left button
Up Button
Right Button
Back button
OK
On/Off Button
OK Button
Down Button
Operation display window
Operation and Settings status display
Back button
When you move to the previous stage from the menu’s
setting stage
Up/down/left/right button
When you change the menu’s setting value
OK button
When you save the menu’s setting value
On/Off button
When you turn ON/OFF the air conditioner
Hydro Kit Owner’s Manual 9
Operation Setting
Operation Setting
Operation mode
You can easily control the desired operation mode.
In the main screen, press [<, > (left/right)] button to select the operation mode or home leave or hold
category, and press [∧ , ∨ (up/down)] button to set the operation mode.
※ Some products may not support some operation modes.
Mode
Description
Cool
The product yields cool water to use in FCU cooling.
Heat
The product yields hot water to use in under floor heating or FCU heating.
AI / Auto
In this mode, heating setpoint is automatically determined by pre-defined
temperature profile.
AI / Auto operation
This mode is only applied to heating.
In order to save energy and to give highest comfort, setting temperature will follow outside
temperature. 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.
1. Select AI / Auto mode.
10 Hydro Kit
Operation Setting
ENGLISH
2. Select the desired temperature category
3. Adjust the desired temperature level by press [∧ , ∨ (up/down)] button.
h Note
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
Cold
Hot Hydro Kit Owner’s Manual 11
Temperature Setting
Temperature Setting
You can easily control to the desired temperature.
• In the main screen, press [<, > (left/right)] button to select the desired temperature category, and
press [∧ , ∨ (up/down)] button to set the desired temperature.
- In the cooling, heating, and AI/auto mode, the desired temperature control is possible.
Mode
Description
Room
Room temperature setting is available when remote room air sensor (sold
temperature separately) is installed
If the desired temperature is lower than the water temperature, the heating
Leaving water
is not performed.
temperature
Set the desired temperature higher than the water temperature.
DHW tank
DHW tank temperature setting is available when DHW tank is installed.
temperature
This operation is changed to the temperature sensor only, the inlet
Water inlet
temperature sensor, and temperature control logic is the same as the
temperature
leaving water temperature operation.
12 Hydro Kit
Temperature Setting
ENGLISH
DHW Heating Operation
Funtion to set whether or not to use a installed DHW tank
<Note>
• This function is not used when the DHW tank is not installed.
• If you want to know more information, refer function on installation information section.
Hydro Kit Owner’s Manual 13
Temperature Setting
View Temperature
You can check the current temperature.
• In the main screen, you can enter the monitoring screen by pressing [Back] button.
Mode
Description
Room
View room temperature
temperature
Inlet
View inlet temperature
temperature
Outlet
View outlet temperature
temperature
DHW
View DHW temperature
temperature (Only displayed when DHW heating mode)
Solar heat View solar power temperature
temperature (Only displayed when DHW water heating mode)
14 Hydro Kit
Low Noise mode
Low Noise mode is that the unit works at reduced capacity so that the noise produced by the unit
drops.
1. In the menu screen, press [<, > (left/right)] button to select “setting” category, and press [OK]
button to move to the setting list screen.
OK
Hydro Kit Owner’s Manual 15
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Low Noise mode
Low Noise mode
2. In the setting list, if you press [∧ , ∨ (up/down)] button, you can turn on/off Low Noise Mode.
OK
3. Press [<, > (left/right)] button to select the parts and press [∧ , ∨ (up/down)] button to adjust the
time
This implies that the heating and cooling capacity will also drop. Beware of this when a
certain level of heating or cooling is required.
Low Noise mode operation may not work while the product is proceeding higher priority
operation such as defrost operation, anti-freezing operation, and etc.
16 Hydro Kit
Wi-Fi pairing
This function is only available on some products.
Wi-Fi pairing is the activation of the AP mode function of the Wi-Fi module connected to the indoor
unit.
1. In the menu screen, press [<, > (left/right)] button to select “setting” category, and press [OK]
button to move to the setting list screen.
OK
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Wi-Fi pairing
Wi-Fi pairing
2. In the setting list, if you press [∧ , ∨ (up/down)] button, you can turn on/off Wi-Fi pairing.
OK
OK
18 Hydro Kit
Defrost Mode
Defrost Mode is the function to set defrost mode operation of outdoor unit.
1. In the menu screen, press [<, > (left/right)] button to select “setting” category, and press [OK]
button to move to the setting list screen.
OK
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Defrost Mode
Defrost Mode
2. In the setting list, if you press [∧ , ∨ (up/down)] button, you can turn on/off Defrost Mode.
OK
Setting value:
- Not use (STEP0)
- Forced snow removal (STEP1)
- Fast defrost setting (STEP2)
- Forced snow removal + fast defrost (STEP3)
20 Hydro Kit
Lock Setting
Lock setting – all, on/off, mode, DHW lock
• It is the function to lock the button operation of the remote controller so that children or other
persons cannot use it without permission.
• It is the function to limit the desired temperature range that can be set in the wired remote controller.
1. In the menu screen, press [<, > (left/right)] button to select “lock setting” category, and press [OK]
button to move to the lock setting list screen.
OK
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Lock Setting
Lock Setting
2. In the lock setting list, if you press [∧ , ∨ (up/down)] button, you can turn on/off the corresponding
lock function.
Mode
All lock
Description
It locks all button operation of the remote controller.
On/Off lock
It locks the On/Off button operation of the remote controller.
DHW lock
It locks the DHW On/Off button operation of the remote controller.
Mode lock
It locks the operation mode button operation of the remote controller.
22 Hydro Kit
Date setting
Set the date displayed on the remote controller.
• In the user setting list, select the date category, and press [OK] button to move to the detail screen.
• After the setting, if you press [OK] button, the setting is saved and moves to the previous screen.
OK
Hydro Kit Owner’s Manual 23
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Date setting
Timer Setting
Timer Setting
Set the time displayed on the remote controller.
• In the user setting list, select the time category, and press [OK] button to move to the detail screen.
• After the setting, if you press [OK] button, the setting is saved and moves to the previous screen.
• In the screen, Time display can be presented in the form of AM / PM or 24 hours standard.
OK
24 Hydro Kit
Timer Setting
You can easily set the timer in the range of 1~7 hours in the units of 1 hour.
OK
h Note
If the product operation is On, the easy timer turns off the operation after the corresponding time.
If the product operation is Off, the easy timer turns on the operation after the corresponding time.
If the easy timer operation is turned On/Off before the timer operation, the set timer will be
cleared.
Hydro Kit Owner’s Manual 25
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Simple timer
Timer Setting
Turn-off Reservation
The product is automatically turned Off at the set timer time.
It provides 2 Time formats, 12Hours(AM/PM) or 24Hours reference.
h Note
Even if the Turn-off Reservation operation is turned On/Off after the setting and before the timer
operation, the set timer is not cleared.
26 Hydro Kit
Timer Setting
The product is automatically turned On at the set timer time.
It provides 2 Time formats, 12Hours(AM/PM) or 24Hours reference.
h Note
Even if the Turn-on Reseravation operation is turned On/Off after the setting and before the timer
operation, the set timer is not cleared.
Hydro Kit Owner’s Manual 27
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Turn-on Reservation
Schedule Setting
Schedule Setting
How to enter schedule
• In the menu screen, press [<, >(left/right)] button so select the schedule category, and press [OK]
button to move to the schedule setting list screen.
• In the schedule setting list screen, press [∧ , ∨ (up/down)] button to select the menu to set, and
press [OK] button to move to the detail screen.
OK
Daily Schedule
It is the function that can check the status of the timer (schedule) saved in the remote controller.
• In the schedule list, select the daily schedule status category, and press [OK] button to move to the
detail daily schedule status screen.
• You can use the remote controller’s [<, > (left/right)] button to check the timer information of other
dates.
• You can use the remote controller’s [∧ , ∨ (up/down)] button to check the corresponding date’s
other timer information.
• Select the timer information, and press [OK] button to move to the corresponding timer’s edit
screen.
28 Hydro Kit
Schedule Setting
It is the function that can check the status of the timer (schedule) saved in the remote controller.
• In the schedule list, select the daily schedule status category, and press [OK] button to move to the
daily schedule status detail screen.
• You can use the remote controller’s [<, > (left/right)] button to check other date’s timer information.
• You can edit the saved schedule’s timer information.
- Select the schedule to edit using [∧ , ∨ (up/down)] button, and press [OK] button to move to the
edit screen.
• Select the timer information, and press [OK] button to move to the corresponding timer’s edit
screen.
Schedules & Edit – Add schedule
Description of each stage in Add schedule
In ‘Stage 1’, it sets the period to perform the timer.
In ‘Stage 2’, it sets the day of week to perform the timer.
- You can select ‘Everyday / Weekend / Weekdays / Individual selection’.
In ‘Stage 3’, it sets the start time for the timer.
In ‘Stage 4’, it sets the timer operation information.
- If ‘Stop’ is selected, you cannot set the mode / temperature / fan speed.
When stages 1~4 are completed, along with the message of ‘schedule is added’, it moves to View
and edit schedule screen.
Exception day
It is the function to automatically stop the operation on the set timer day.
• In the schedule list, select the exception day category, and press [OK] button to move to the
Exception day designation detail screen.
• In the exception day, you can check, and add/change/delete the exception day information saved in
the remote controller.
- To add an exception day, in the Exception day registration detail screen, designate
year/month/day, and press [OK] button to save the Exception day.
- Select the Exception day to edit using [∧ , ∨ (up/down)] button, and press [OK] button to move to
the edit screen.
- In the exception day edit screen, you can check, delete/change the corresponding exception day’s
setting contents.
- When you change the exception day information, you need to save it after the change.
DHW Tank Heating & DHW Tank Heater Operation
This function is schedule programming about DHW tank heating and DHW tank heater operation.
Two schedule programming for DHW tank heating and another Two schedule programming for DHW
tank heater operation are possible.
Hydro Kit Owner’s Manual 29
ENGLISH
Schedules & Edit
Using Thermostat
Using Thermostat
The term "thermostat", which is widely used in this chapter, is a kind of 3rd party accessory.
LG Electronics does not supply thermostat and it should be supplied 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.
CAUTION
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.
How to use Thermostat
To find how to turn on and off, how to set target temperature, how to change operating mode, etc,
please refer thermostat operating manual provided by thermostat manufacturer.
30 Hydro Kit
Using Thermostat
• 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, Air-to-Water heat pump is generally operation 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 two levels according to the seriousness of the problem. : Slight trouble and
Heavy trouble
- Slight trouble : Sensor trouble. In most case, this trouble is concerned with sensor problems.
The unit is operating under emergency mode operation(level 1).
- Heavy trouble : Compressor cycle trouble. Emergency mode operation(level 2) is performed by
optional electric heater.
- 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 is not installed at the system.
• Emergency operation level
- When system met trouble, it stops operation and wait for user’s decision : Calling service center or
starting emergency operation.
- To start emergency operation, user simply push 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.
※ It can not be operated, if the electric heater accessory is not installed.
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℉)
Hydro Kit Owner’s Manual 31
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Emergency Operation
Using Thermostat
• Duplicated trouble : Option trouble with slight or heavy trouble
- If option trouble is occurred 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.
32 Hydro Kit
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.
When the unit is not going....
CAUTION
• 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.
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.
Hydro Kit Owner’s Manual 33
ENGLISH
Maintenance and Service
Maintenance and Service
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.
WARNING
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.
WARNING
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.
34 Hydro Kit
Maintenance and Service
Check the following points before requesting repairs or service.... If the malfunction persist, please
contact your dealer.
Case
Explanation
• Have you made a mistake in timer operation?
Hydro Kit does not operate.
The room has a peculiar odor.
Hydro Kit does not operate for
about 3 minutes when restart.
Does not cool or heat effectively.
• Has the fuse blown or has the circuit breaker been tripped?
• Check that this is not a damp smell exuded by the walls, carpet,
furniture or cloth items in the room.
• This is the protector of the mechanism.
• Wait about three minutes and operation will begin.
• 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?
h Note
- Max Allowable pressure High side : 4.2 MPa / Low Side : 2.4 MPa
- Max Allowable water temperature High side : 80 °C / Low side : 10 °C
- Max Allowable water pressure : 0.98 Mpa (0.3 ~ 10 kgf/cm²)
Hydro Kit Owner’s Manual 35
ENGLISH
Troubleshooting Tips! Save time and money!
36 Hydro Kit
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