LG | HU031.UE2 | LG HU031.UE2 Owner’s Manual

ENGLISH
ITALIANO
ESPAÑOL
FRANÇAIS
DEUTSCH
ΕΛΛΗΝΙΚΆ
ČEŠTINA
OWNER’S MANUAL
AIR CONDITIONER
NEDERLANDS
Please read this manual carefully before operating
your set and retain it for future reference.
POLSKI
TYPE :
(Air-to-Water Heat Pump)
Original instruction
LIMBA ROMÂNĂ
www.lg.com
P/NO : MFL68680902
Air-to-Water Heat Pump Owner’s Manual
TABLE OF CONTENTS
Safety Precautions .............................3
Product Introduction ..........................6
FOR YOUR RECORDS
Write the model and serial numbers here:
Model #
Owner's Instruction ............................8
Serial #
Using Thermostat .............................25
You can find them on a label on the side of each
unit.
Maintenance and Service.................28
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 AWHP 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.
• AWHP 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 AWHP.
• When the power cable is to be replaced, replacement
work shall 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.
2 Air-to-Water Heat Pump
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.
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.
Use the correctly rated breaker or fuse.
• There is risk of fire or electric shock.
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.
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.
Do not use a defective or underrated
circuit breaker. Use the correctly rated
breaker and fuse.
• 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.
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.
Never install the unit on a moving base
or a place from where it can fall down.
• The falling unit can cause damage or injury
or even death of a person.
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 use a multi outlet. Always use
this appliance on a dedicated circuit and
breaker.
• 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.
For installation, removal or reinstall ,
always contact the dealer or an
Authorized Service Center.
• There is risk of fire, electric shock, explosion,
or injury.
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.
Do not touch , operate, or repair
the product with wet hands.
• There is risk of electric shock or fire.
Owner’s Manual 3
ENGLISH
Safety Precautions
Safety Precaution
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.
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.
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.
Make sure to check that the power
device is not dirty, loose or broken and
then turn on the power.
• Improper or loose connections can cause
heat generation or fire.
• Children may play with them and cause
injury.
• Dirty, loose or broken power device can
cause electric shock or fire.
In 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.
When installing the unit, use the
installation kit provided with the product.
Be sure to use only those parts which
are listed in the service parts list. Never
attempt to modify the equipment.
• An charged capacitor can cause electrical
shock.
• Otherwise the unit may fall and cause severe
injury.
• 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.
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.)
If strange sounds, smell or smoke comes
from product, immediately turn the breaker
off or disconnect the power supply cable.
• Oxygen deficiency could occur and hence
harm your health.
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.
Take care to ensure that power cable
could not be pulled out or damaged
during operation.
• Almost the antifreeze is a toxic product.
If you touch the pipe or internal parts,
you should be wear protection or wait
time to return to normal temperature.
• Otherwise , it may cause burns or frostbite,
personal injury.
• There is risk of physical injury, electric
shock, or product failure.
Turn the main power off when cleaning
or repairing the product.
• There is risk of electric shock.
Do not touch any electric part with wet
hands. you should be cut power before
touching electric part.
• There is risk of electric shock or fire.
Do not touch leaked refrigerant directly.
• There is risk of frostbite.
Do not heated to a temperature of more than provided by the product.
• Otherwise, it may cause fire or damage of product.
4 Air-to-Water Heat Pump
• There is risk of electric shock or fire.
Take care to ensure that nobody
especially kids could step on or fall onto
the unit.
• This could result in personal injury and
product damage.
Do not touch refrigerant pipe and water
pipe or any internal parts while the unit
is operating or immediately after
operation.
• There is risk of burns or frostbite, personal
injury.
Make sure to install mixing valve (field
supply). The mixing valve is setting the
water temperature. The hot water
temperature maximum values shall be
selected according to the applicable
legislation.
Safety Precaution
Two or more people must lift and
transport the product.
• Avoid personal injury.
Do not install the product where the noise
or hot air from the unit could damage or
disturb the neighborhoods.
• It may cause a problem for your neighbors
and hence dispute.
Do not block the inlet or outlet of air
flow.
• It may cause product failure.
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.
Do not tilt the unit when removing or
uninstalling it.
• The condensed water inside can spill .
Dismantling the unit, treatment of the
refrigerant oil and eventual parts should
be done in accordance with local and
national standards.
Do not install the product where it will be
exposed to sea wind (salt spray) directly.
• It may cause corrosion on the product.
Always check for gas (refrigerant)
leakage after installation or repair of
product.
• Low refrigerant levels may cause failure of
product.
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.
Be cautious when unpacking and
installing the product.
• Sharp edges could cause injury.
Do not mix air or gas other than the
specified refrigerant used in the system .
• If air enters the refrigerant system, an
excessively high pressure results, causing
equipment damage or injury.
Do not expose your skin or kids or
plants to the cool or hot air draft.
• This could harm to your health.
The hot water may not be available immediately,
during disinfection operation or depending on the
amount of hot water.
Keep level even when installing the
product.
• To avoid vibration or noise.
Do not use the product for special
purposes, such as preserving foods,
works of art, etc. It is a consumer AWHP,
not a precision refrigeration system.
• There is risk of damage or loss of property.
Do not step on or put anyting on the
product.
• There is risk of personal injury and failure of product.
If the refrigerant gas leaks during the
repair, do not touch the leakaing
refrigerant gas.
• The refrigernat gas can cause frostbite (cold
burn).
If the refrigerant gas leaks during the
installation, ventilate the area immediately.
• Otherwise it can be harmfull for your health.
Use a firm stool or ladder when cleaning,
maintaining or repairing the product at
an height.
• Be careful and avoid personal injury.
During floor heating operation it is important to limit
the minimum/maximum water temperature.
Owner’s Manual 5
ENGLISH
CAUTION
Product Introduction
Product Introduction
Typical Installation Scene
3
1
2
Water
Inlet
Water
Outlet
4
5
1. Indoor unit
2. Outdoor unit
3. Refrigerant pipe and connecting cable
4. Water pipe
5. Ground wire to ground outdoor unit to prevent electrical shocks.
*The shape of products can be chaged according to the model capacity and type.
6 Air-to-Water Heat Pump
Product Introduction
ENGLISH
Remote Controller
‫ڸ‬
‫ۀ‬
‫ڿ‬
‫ھ‬
‫ڽ‬
‫ہ‬
‫ۂ‬
‫ڹ‬
‫ں‬
WATER
HEATING
‫ڻ‬
TEMP
OPER
MODE
‫ڼ‬
‫ۃ‬
‫ۄ‬
No
1
2
3
4
5
6
7
8
9
10
11
12
13
Name
Display
Change Temperature Button
Water Heating Enable / Disable Button
Power Button
Operation Mode Selection Button
Silent Mode On / Off Button
Temperature Setting Mode Button
Temperature View Mode Button
Function Setting Button
Programming Button
Direction Button (Up, Down, Left, Right)
Set / Clear button
ESC Button
Owner’s Manual 7
Owner's Instruction
Owner's Instruction
Monitoring Information
Electric heater STEP one
Electric heater STEP two
These icons indicate that the backup electric heater is operating.
Sanitary water tank heater
This icon indicates that sanitary water tank electric heater which is located inside sanitary
water tank is active.
The icon is not used when sanitary water tank is not installed.
Water pump
This icon indicates that the water pump inside the unit 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
recommendation 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.
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.
Disinfection
This icon indicates disinfecting operation is ongoing in sanitary water tank.
Compressor
This icon indicates that the compressor is active.
Child Lock
No function
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 is occurred.
Heavy trouble
This icon indicates that heavy trouble is occurred.
8 Air-to-Water Heat Pump
Owner's Instruction
ENGLISH
Mode Change
Turn on the product and select operation mode.
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
Operation mode
• Cooling operation - The product yields cool water to use in 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.
Selecting Target Temperature
1
Press SET TEMP button to select each operation mode.
Room temperature
2
Leaving water
temperature
Sanitary water tank
temperature
Adjust desired temperature by pressing change TEMP buttons on each mode.
To raise the temperature
To lower the temperature
h Note
: Increase 1 ℃ or 2 ℉ per one time pressing
: Decrease 1 ℃ or 2 ℉ per one time pressing
• We can change the temperature range of each mode on installation setting mode.
Please refer function code 11 to 15.
• Room temperature setting is available when remote room air sensor (sold separately) is
installed. Please refer function code 03.
• Sanitary water tank temperature setting is available when sanitary water tank is installed.
Owner’s Manual 9
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
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
Press OPER MODE button to select weather-dependent operation mode.
2
Adjust the desired temperature level by pressing change TEMP buttons.
: 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
Cold
Hot
View Temperature
1
Press repeatedly VIEW TEMP
button
To select each temperature.
(Whenever press VIEW TEMP
button, the room temperature
will be displayed during 5
seconds.)
: View room temperature
: View inlet temperature
: View outlet temperature
: View sanitary water temperature
(Only displayed when sanitary
water heating mode)
: View solar power temperature
(Only displayed when sanitary
water heating mode)
(Unit:°C)
Temperature
Air
Water
10 Air-to-Water Heat Pump
Temperature Range
Display
below 11
Lo
11 ~ 39
actual temperature
above 39
Hi
below 0
Lo
0 ~ 92
actual temperature
above 92
Hi
Owner's Instruction
1
Press repeatedly view
button
<Sanitary water heating disable>
2
ENGLISH
Sanitary Water Heating Operation
<Sanitary water heating enable>
Sanitary water heating operation is operating only on enable condition.
During operation, segment will be on.
<Sanitary water heating ON>
<Note>
• This function is not used when the sanitary water tank is not installed.
• If you want to know more information, refer function code [15, 26~29] on installation
information section.
Owner’s Manual 11
Owner's Instruction
Silent Mode Operation
Silent mode operation is that the unit works at reduced capacity so that the noise produced by the
unit drops.
1
Press the programming button repeatedly until silent mode icon is shown.
2
Press left, right button to select menu.
“AM/PM or hour”
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).
5
Press up, down button to adjust the
Hour.
6
If you finish the setting,
press OK / CLEAR button.
7
Press exit button to exit or system will automatically release without any
input 25 seconds.
This implies that the heating and cooling capacity will also drop. Beware of this when a
certain level of heating or cooling is required.
Silent mode operation may not work while the product is proceeding higher priority
operation such as defrost operation, anti-freezing operation, and etc.
(When this mode is not operated by the priority order, ONLY display
.)
12 Air-to-Water Heat Pump
Owner's Instruction
ENGLISH
Child Lock
This function is to prevent children or other people from using controller.
1
Press function setting button to enter
user setting mode. (The segment will be flashed)
2
Press OK / CLEAR button to finish the selection.
The segment will be disappear.
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.
4
To release this setting, pressing function setting
button until
icon flash and then enter OK /
CLEAR button.
Owner’s Manual 13
Owner's Instruction
Quick Sanitary Tank Heating
If there is urgent sanitary heating demand, Quick Sanitary Tank Heating mode can be used to reduce
the time to reach target sanitary tank temperature by forcibly turning on sanitary tank heater.
After reaching target sanitary tank temperature or by user’s input to stop, Quick Sanitary Tank
Heating mode will be finished.
1
Press Sanitary Tanke Heating Enable button with up button for 3 seconds to start Quick
Sanitary Tank Heating. ‘Sanitary Tank Heating Enable’ icon and ‘Sanitary tank heater’
icon will be flashing together.
2
If target sanitary tank temperature is reached or user pushes Sanitary Tanke Heating
Enable button with down button for 3 seconds, Quick Sanitary Tank Heating will be
finished and icon flashing will be stopped.
14 Air-to-Water Heat Pump
Owner's Instruction
ENGLISH
Error Code display
The error code will be displayed on control panel.
Slight trouble : Sensor trouble
<Display>
Heavy trouble : Compressor cycle trouble
<Display>
Critical error
On critical error, the unit will stop unconditionally.
At this time, 'CH' and error code No. keep display by turns.
<Display>
Owner’s Manual 15
Owner's Instruction
Setting Current Time
You can set current time.
1
Keep pressing programming button for 3 seconds 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).
5
Press up, down button to adjust the
Hour.
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 OK / CLEAR button.
9
Press exit button to exit or system will automatically release without any
input 25 seconds.
16 Air-to-Water Heat Pump
Owner's Instruction
You can easily turn-on reservation.(ONLY enable when unit is stand-by.)
1
Press programming button to enter the
Programming mode. (the segment flashing)
2
Press up, down button to adjust the
reservation time.
3
If you finish the setting, press OK / CLEAR 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.)
1
Press programming button to enter the
Programming mode. Repeat pressing
button to select [sleep reservation].
(the segment flashing)
2
Press up, down button to adjust the
reservation time.
3
If you finish the setting, press OK / CLEAR button to complete
programming.
4
Press exit button to exit or system will automatically release without any
input after 25 seconds.
Owner’s Manual 17
ENGLISH
Programming : Setting Simple Reservation
Owner's Instruction
Screed drying
After installing water pipes for under floor heating, user can select screed drying mode for curing the cement
1
Keep pressing programming button for 3 seconds to enter setting
screed drying mode.
2
Press programming button to select
function code 18.
3
Press left, right button to move to
screed drying setting part.
4
Press up, down button to adjust “01” or
“00”
(00: Not Used 01: Used)
5
If you finish the setting,
press OK / CLEAR button.
6
Press exit button to exit or system will automatically release without any
input 25 seconds.
7
During the screed drying mode, “dry” is
displayed.
Left days for completing the screed drying
mode are displayed.
Left days
18 Air-to-Water Heat Pump
Owner's Instruction
ENGLISH
Programming : Setting ON Reservation
This function is able to turn-on after a setting time.
1
Press programming button to enter the
Programming mode. Repeat pressing button
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.
5
Press right button to move "Minute" part.
(the "Minute" segment will be flashed).
6
Press up, down button to adjust the
Minute.
7
If you finish the setting, press OK / CLEAR button to complete
programming.
8
Press exit button to exit or system will automatically release
without any input after 25 seconds.
Owner’s Manual 19
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. Repeat pressing button
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.
5
Press right button to move "Minute" part.
(the "Minute" segment will be flashed).
6
Press up, down button to adjust the
Minute.
7
If you finish the setting, press OK / CLEAR button to complete
programming.
8
Press exit button to exit or system will automatically release
without any input after 25 seconds.
20 Air-to-Water Heat Pump
Owner's Instruction
ENGLISH
Programming : Weekly Reservation
The weekly reservation is active after setting current time.
1
Press programming button to enter the
Programming mode. Repeat pressing
button 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).
Start Time Section
5
Press up, down button to adjust the
Hour on Start Time section.
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).
Off Time Section
Owner’s Manual 21
Owner's Instruction
9
Please refer the process from No.5 to
No.7 for setting OFF time. It is same
method.
10
If you finish the setting, press
setting/cancel button to complete
programming. The under bar
segment will be created, when it
finished.
11
Please refer the process from No.2
to No.10 for setting other day weekly
program. It is same method.
12
Press exit button to exit or system will automatically
release without any input after 25 seconds.
<Note>
Description of weekly reservation
<Start time selction>
Action
Start Time
From
<Start time selction>
<Off time selction>
To
Off Time
<Off time selction>
❋ Two actions per weekday can be programmed, in total 14 actions.
22 Air-to-Water Heat Pump
Owner's Instruction
ENGLISH
Programming : Holiday Reservation
This function is to automatically stop the machine working on some days.
1
Press programming button to enter the
Programming mode. Repeat pressing
button 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 be disappear.
4
Press exit button to exit or system will automatically release without any input
after 25 seconds.
Owner’s Manual 23
Owner's Instruction
Programming : Sanitary Tank Heating & Sanitary Tank Heater Operation
This function is schedule programming about sanitary tank heating and sanitary tank heater
operation. Two schedule programming for sanitary tank heating and another Two schedule
programming for sanitary tank heater operation are possible. Pre-assigned program numbers for
sanitary tank heating programming are ‘1’ and ‘2’. Programming number ‘3’ and ‘4’ are assigned for
sanitary tank heater operation. Scheduled programming will be operated everyday.
1
Press programming button to enter the programming mode. Repeat pressing button to
select sanitary tankt heating programming. (the segment flashing)
2
Press left and right button to adjust schedule program number. Programming number ‘1’
and ‘2’ are for sanitary tank heating programming(if selected, ‘Sanitary tank heating
enabled’ icon will be flashing), and ‘3’ and ‘4’ are for sanitary tank heater operation
programming(if selected, ‘Sanitary tank heater’ icon will be flashing).
3
After selecting programming number, press down button to enter adjusting turn-on time.
Turn-on time can be adjusted by pressing left, right, up, and down button. After assigning
minute of turn-on time, press right button to enter adjusting turn-off time. Like adjusting
turn-on time, press left, right, up, and down button to change turn-off time.
4
Press set button to finish programming.
To exit Programming mode, press ESC button.
24 Air-to-Water Heat Pump
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.
Operating Thermostat with Control Panel
• Following features are permitted when thermostat is installed. :
•
SET TEMP button
•
VIEW TEMP button
•
Temperature adjust button*
•
Sanitary water heating Enable / Disable
•
Silent operation On / Off
* : Adjusted temperature is only used to control electric heater on / off condition.
The product does not turn on / off according to the setting temperature at the control panel.
It turns on / off according to the thermostat signal.
• Following features are NOT permitted when thermostat is installed. :
•
Operating mode (cooling) selection
•
Time scheduling
•
Operation On / Off
Owner’s Manual 25
ENGLISH
Using Thermostat
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, 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
(#4)
Target
Leaving Water
Temperature
Target
Room Air
Temperature
Target
Sanitary Water
Temperature
High temperature cycle
OFF
50°C
24°C
70°C
Low temperature cycle
ON
30°C
19°C
50°C
26 Air-to-Water Heat Pump
Using Thermostat
-
Operation On/Off
-
VIEW TEMP button*
-
Temperature adjust button*
-
Sanitary water heating Enable / Disable
ENGLISH
• Following features are permitted in emergency operation. :
* : Temperature measured by failed sensor is displayed as ‘- -’.
* : Adjusted temperature is only used to control electric heater on / off condition.
The product does not turn on / off according to the setting temperature at the control panel. 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 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.
Owner’s Manual 27
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.
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 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.
CAUTION
• In the case of water with added brine, the drain valve of shut-off valve must be connected to a
recovery container.
• Do not touch the water stirred with the brine.
• When the brine in the pipe is leaked, do not operate the unit and contact dealer, seller or an
authorized service center.
28 Air-to-Water Heat Pump
Maintenance and Service
Check the following points before requesting repairs or service.... If the malfunction persist, please contact your dealer.
Case
AWHP does not operate.
The room has a peculiar odor.
AWHP does not operate for
about 3 minutes when restart.
Does not cool or heat effectively.
The unit operation is noisy.
Steam is raised in unit.
Control panel display is faint, or
no display at all.
Explanation
• Have you made a mistake in timer operation?
• Has the fuse blown or has the circuit breaker been tripped?
• If ‘CH 14’is displayed in the display panel, check whether the water pipe is
frost or remove the air in the PHEX by opening the air vent.
• 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 AWHP was first turned on.
Allow time for it to cool down.
• Has the setting temperature been set incorrectly?
• Refrigerant flow sound
- While the system is being started or stopping, sound from the refrigerant
flow may be heard.
• 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.
• Sound for the unit heat exchanger
- Durig the cooling operation, a sound may be heard from the indoor unit
heat exchanger due to water freezing or melting.
• Steam from heat exchanger
- During defrosting operation, ice on the heat exchanger is melted,
resulting in making steam.
• Has the circuit breaker been tripped?
Owner’s Manual 29
ENGLISH
Troubleshooting Tips! Save Time and Money!
30 Air-to-Water Heat Pump
[Representative] LG Electronics Inc. EU Representative
Krijgsman 1, 1186 DM Amstelveen, The Netherlands
[Manufacturer] LG Electronics Inc. Changwon 2nd factory
84, Wanam-ro, Seongsan-gu, Changwon-si, Gyeongsangnam-do, KOREA
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