Panasonic WH-SXC09D3E5 User manual

F567973
Operating Instructions
Air-to-Water Heatpump
Model No.
Indoor Unit Outdoor Unit
WH-SXC09D3E5 WH-UX09DE5
WH-SXC12D6E5 WH-UX12DE5
© Panasonic HA Air-Conditioning (M) Sdn. Bhd. 2011.
Unauthorized copying and distribution is a violation
of law.
ENGLISH
ENGLISH
Before operating the unit, read these operating instructions thoroughly and keep them for future reference.
Before operating the unit, make sure the installation has been carried out correctly by authorized dealer correctly and
precisely following the installation instructions given.
2 ~ 11
2 ~ 11
FRANÇAIS
FRANÇAIS
Avant d’utiliser l’appareil, lisez ce mode d’emploi dans son intégralité et conservez-le pour toute référence ultérieure.
Avant de faire fonctionner l’unité, assurez-vous que l’installation a été correctement réalisée par un revendeur agréé
et dans le strict respect des consignes d’installation fournies.
12 ~ 21
12 ~ 21
ESPAÑOL
Antes de utilizar la unidad, sírvase leer atentamente estas instrucciones de funcionamiento y conservarlas como
futuro elemento de consulta.
Antes de operar la unidad asegúrese de que la instalación haya sido realizada correctamente por un instalador
autorizado, siguiendo de forma correcta y precisa las instrucciones de instalación dadas.
22 ~ 31
22 ~ 31
DEUTSCH
Bevor Sie das Gerät in Betrieb nehmen, lesen Sie bitte diese Bedienungsanleitung aufmerksam durch und bewahren Sie
sie für die künftige Verwendung auf.
Vor der Inbetriebnahme dieses Geräts ist sicherzustellen, dass die Montage durch einen autorisierten Händler
fachgerecht entsprechend der Installationsanleitung durchgeführt wurde.
32 ~ 41
32 ~ 41
ITALIANO
Prima di utilizzare l’unità si prega di leggere attentamente le istruzioni e di conservare questo opuscolo per potervi
fare riferimento in futuro.
Prima di far funzionare l’unità, assicurarsi che l’installazione sia stata eseguita correttamente da un rivenditore
autorizzato e seguendo precisamente le istruzioni date per l’installazione
42 ~ 51
42 ~ 51
NEDERLANDS
Lees voor u het apparaat gebruikt deze gebruiksaanwijzing grondig en bewaar deze voor toekomstig gebruik.
Controleer, voor u de unit in gebruik neemt, dat de installatie goed is uitgevoerd door een officiële dealer en dat dat
nauwkeurig is gedaan volgens de verstrekte instructies voor de installatie.
52 ~ 61
PORTUGUÊS
Antes de ligar a unidade, leia cuidadosamente este manual de utilização e guarde-o para futura referência.
Antes de colocar a unidade em funcionamento, ceritifque-se que a instalação foi feita correctamente por um
fornecedor autorizado e que seguiu com precisão as instruções de instalação dadas.
62 ~ 71
EΛΛΗΝΙΚΆ
Προτού θέσετε τη μονάδα σε λειτουργία, διαβάστε προσεκτικά αυτές τις οδηγίες χρήσης και φυλάξτε τις για μελλοντική αναφορά.
Πριν θέσετε σε λειτουργία τη μονάδα, βεβαιωθείτε ότι ηεγκατάσταση έχει διεξαχθεί κανονικά από εξουσιοδοτημένο
αντιπρόσωπο, οοποίος έχει ακολουθήσει σωστά και πιστά τις δοθείσες οδηγίες.
72 ~ 81
БЪЛГАРСКИ
БЪЛГАРСКИ
Преди да задействате климатика, прочетете внимателно инструкциите за употреба иги запазете за бъдещи справки.
Преди да използвате устройството се уверете, че монтажът еизвършен правилно ипрецизно от оторизиран дилър,
като са спазвани инструкциите за монтаж.
82 ~91
82 ~91
0.2
0.40
0.30.1
MPa
TIMER OUTDOOR
HEAT
SETTING
STATUS
PUMPDW
BOOSTER
QUIET
TANK
WATER OUTLET
C
C
OFF/ON
HEATER
OPERATION
FORCE
HEATER
ACTUAL
TIMER
1
MONTUEWEDTHU FRI SATSUN
SOLAR REMOTE
NOTAVAILABLE
2 3 4 56
ON
OFF
COOL

2
• Panasonic Air-to-Water Heatpump is a split system consisting
only of an indoor unit and an outdoor unit. This system designed for
combination with Panasonic Tank Unit. In case of non-Panasonic
Tank Unit is being used with Panasonic Air-to-Water Heatpump
System, Panasonic cannot guarantee neither good operation nor
reliability of the system.
• This manual describes how to operate the Heatpump system
between indoor and outdoor units only.
•
Other operation such as water tank, radiator, external thermo controller
and underfloor system, please refer to respective manufacturer
operation manuals.
SAFETY PRECAUTIONS
Thank you for purchasing
Panasonic Product
TABLE OF CONTENTS
TABLE OF CONTENTS
SAFETY PRECAUTIONS
2~3
CONTROL PANEL
4~8
INDOOR UNIT
9
TROUBLESHOOTING
10
INFORMATION
11
NOTE
NOTE
The illustrations in this manual are for
explanation purposes only and may
differ from the actual unit. It is subjected
to change without notice for future
improvement.
OPERATION CONDITION
OPERATION CONDITION
Water outlet
Temperature (°C) Indoor
HEATING Max. 55
Min. 25
COOLING Max. 20
Min. 5
Ambient
Temperature (°C) Outdoor
HEATING Max. 35
Min. -20
COOLING Max. 43
Min. 16
NOTICE : When the outdoor temperature
is out of the above temperature
range, the heating capacity will
drop significantly and outdoor
unit might stop for protection
control.
The unit will restart automatically
after a short time when the
outdoor temperature is back in
the limits.
To prevent personal injury, injury to others, or property damage, please
comply with the following.
Incorrect operation due to failure to follow instructions below may cause
harm or damage, the seriousness of which is classified as below:
WARNING
WARNING
This sign warns of death or serious injury.
CAUTION
CAUTION
This sign warns of injury or damage to
property.
The instructions to be followed are classified by the following symbols:
This symbol denotes an action that is
PROHIBITED.
These symbols denote an action that
is COMPULSORY.
WARNING
WARNING
INDOOR UNIT AND OUTDOOR UNIT
This appliance is not intended for use by persons (including
children) with reduced physical, sensory or mental
capabilities, or lack of experience and knowledge, unless
they have been given supervision or instruction concerning
use of the appliance by a person responsible for their safety.
Children should be supervised to ensure that they do not
play with the appliance.
Please consult authorized dealer or specialist to clean
the internal parts, repair, install, remove and reinstall the
unit. Improper installation and handling will cause leakage,
electric shock or fire..
Do not install the unit in a potentially explosive or flammable
atmosphere. Failure to do so could result in fire.
Do not insert your fingers or other objects into the
indoor or outdoor unit, rotating parts may cause
injury.
Do not touch the outdoor unit during lightning, it may cause
electric shock.
Do not sit or step on the unit, you may fall down
accidentally.
Do not install the indoor unit at outdoor. This is designed for
indoor installation only.

ENGLISH
3
/
/
Floor Heating
Panel
Control Panel
Power Supply
Water Tank Unit
Indoor Unit
Outdoor Unit
Shower
CAUTION
CAUTION
INDOOR UNIT AND OUTDOOR UNIT
Do not wash the indoor unit with water,
benzene, thinner or scouring powder.
Do not install the unit close to any combustible
equipment or at bathroom. Otherwise, it may
cause electric shock or fire.
Do not touch the water discharge pipe at the
indoor unit during operation.
Do not place anything on top or beneath of the
unit.
Do not touch the sharp aluminium fin,
sharp parts may cause injury.
Ensure drainage pipe is connected properly.
Otherwise, leakage may occur.
After long period of use, make sure the
installation rack does not deteriorate to prevent
the unit from falling down.
CONTROL PANEL
Do not let the control panel get wet. Otherwise,
it may cause electric shock or fire.
Do not press the buttons on the control panel
with hard, pointed objects. Otherwise, it may
damage the unit.
Do not wash the control panel with water,
benzene, thinner or scouring powder.
Do
not inspect or service the control panel by
not inspect or service the control panel by
yourself. Please consult authorized dealer.
yourself. Please consult authorized dealer.
Otherwise, it may cause injury if mishandling.
WARNING
WARNING
POWER SUPPLY
Do not use modified cord,
joint cord, extension cord or
unspecified cord to prevent
overheating and fire.
To prevent overheating, fire or electric shock:
• Do not share the same power outlet with other
equipment.
• Do not operate with wet hands.
• Do not over bend the power supply cord.
If the supply cord is damage, it must be replaced
by the manufacturer, its service agent or similarly
qualified persons in order to avoid a hazard.
This unit is equipped with Residue Current Circuit
Breaker (RCCB). It is strongly recommended to
check the operation of the RCCB after installation
and periodically after servicing or maintenance by
authorized dealer to ensure it is in good working
order. Otherwise, it may cause electrical shock or
fire in case of malfunction.
It is strongly recommended to install Residual
Current Device (RCD) on-site to prevent electric
shock or fire.
Stop using the product when any abnormality/
failure occurs and disconnect the power plug or
turn off the power switch and breaker.
(Risk of smoke/fire/electric shock)
Examples of abnormality/failure
• The RCCB switches off by itself.
• Burning smell, abnormal noise or vibration
sound is observed when the unit is in use.
• Hot water keeps on coming off the unit.
Contact immediately your local dealer for
maintenance/repair.
It is recommended to wear gloves during servicing
or maintenance in order to avoid hazard.
This equipment must be earthed to prevent
electrical shock or fire.
Prevent electric shock by switching off the power
supply when:
- Before cleaning or servicing.
- Extended non-use.
This appliance is for multiple uses. All power
supply circuits must be turn off before access to
any of the terminals in the indoor unit, to avoid
electrical shock, burn or fatal injury.

4
CONTROL PANEL
• Some functions described in this manual may not be applicable to your unit.
• Consult your nearest authorized dealer for further information.
• For normal operation, the
ERROR
RESET
,
FORCE
and
PUMPDW
buttons are not in use.
1OFF/ON Button 14 Quiet Operation OFF/ON Indicator
2Operation LED 15 Backup Heater Enabled/Disabled Indicator
3Operation Mode Button 16 Force Heater Request OFF/ON Indicator
4Quiet Operation Button 17 Backup Heater Actual Operation (OFF/ON) Indicator
5Indoor Unit Backup Heater Enabling Button 18 Booster Heater Actual Operation (OFF/ON) Indicator
6System Setting Mode Buttons 19 System Setting Mode OFF/ON Indicator
7Timer Setting Group Buttons 20 System Status Check Mode OFF/ON Indicator
8Force Heater Mode Button 21 System Pumpdown Mode OFF/ON Indicator
9System Pumpdown Mode Button 22 Timer/Clock Setting Display
10 System Status Check Mode Buttons 23 External Thermo Controller Connected Display
11 Heat Mode OFF/ON Indicator 24 Outdoor Ambient Temperature Display
12 Cool Mode OFF/ON Indicator 25 Water Outlet Temperature Display
13 Tank Mode OFF/ON Indicator 26 Solar Display
27 Error Reset Button
Notes:
• The current day and time need to be set when:
- The power is turned on for the first time.
- After a long time has elapsed since the power was last
turned on.
• The current time that has been set will be the standard
time for all the Timer operations.
1. Press
CLOCK
.
2. Press or to set current day.
3. Press
SET
to confirm.
4. Repeat steps 2 and 3 to set the current time.
CONTROL PANEL PREPARATION
Setting Current Day and Time
TIMER OUTDOOR
HEAT
SETTING
STATUS
PUMPDW
BOOSTER
QUIET
TANK
WATER OUTLET
C
C
SET
SELECT
CANCEL ERROR
RESET
SETTING STATUS
SEARCH
PUMPDWFORCECLOCK
CHECK
OFF/ON
MODE
HEATER
QUIET
OFF/ON
TIMER
HEATER
OPERATION
FORCE
HEATER
ACTUAL
TIMER
1
MON TUE WEDTHU FRI SAT SUN
SOLAR REMOTE
23456
ON
OFF
COOL
16
1
22
21
10
17
18
19
20
24
9
5
25
3
8
4
7
2
15
14
13
6 27
23
26
12 11

ENGLISH
5
SETTING UP THE SPECIAL FUNCTIONS
SETTING UP THE SPECIAL FUNCTIONS
• After initial installation, you can manually adjust the settings. The initial setting remains active until the user changes it.
• The control panel can be used for multiple installations. Some functions may not be applicable to your unit.
• Ensure the operation LED is in OFF condition before setting.
TIMER OUTDOOR
HEAT
SETTING
STATUS
PUMPDW
BOOSTER
QUIET
TANK
WATER OUTLET
HEATER
OPERATION
FORCE
HEATER
ACTUAL
COOL
Day display YES / NO / Temperature display
SETTING / STATUS indicatorFunctions*
Timer display
Operation
Mode Actual Operation
SET
SELECT
CANCEL
SETTING STATUS
SEARCH
CHECK
SELECT FUNCTIONS AND SET YOUR DESIRED TIMER
1. Press
SET
and
CHECK
simultaneously for 5 seconds to enter special setting mode. “SETTING” and “STATUS” indicator is ON.
2. Press or to browse functions.
3. Press
SELECT
to enter the function.
4. Press or to enable YES or disable NO function, or set your desired day and time.
5. Press
SET
to confirm.
Function * Operation Mode/
Actual Operation Description
External Thermo Controller (YES / NO)
To set external thermo controller connection.
TANK
Tank Connection (YES / NO)
To set tank connection.
SOLAR
Solar Priority (YES / NO)
To choose the solar use for water tank heat up.
HEAT
Heating Priority (YES / NO)
To choose the heat pump only use for Heating side during HEAT + TANK mode.
HEAT
Heating Heat-up Interval Set
To set timer for Heating during HEAT + TANK mode (0.5hour ~ 10hours).
TANK
Tank Heat-up Interval Set
To set timer for Tank during HEAT + TANK mode (5minutes ~ 1hour 35minutes).
BOOSTER
Booster Heater Delay Time Set
To set delay timer for booster heater to ON if tank temperature is not reached (20minutes ~ 1hour
35minutes).
Sterilization (YES / NO)
To set sterilization, if required.
Sterilization Day & Time Set
To set timer for sterilization (only once a week).
Sterilization Temperature Set
To set temperature for sterilization function (40°C ~ 75°C).
Sterilization Continue Time
To set timer to maintain heating temperature in order to complete the sterilization function
(5minutes ~ 1hour).
CAUTION
CAUTION
Do not use the system
during sterilization
to prevent burnt or
overheat during shower.

6
BASIC OPERATION
OFF /ON
TO TURN ON OR OFF THE UNIT
• When unit is ON, operation LED is lit and the actual temperature for water outlet and outdoor ambient are shown on the
control panel display.
MODE
TO SELECT OPERATION MODE
HEAT HEAT +TANK TANK
COOL COOL + TANK
• HEAT MODE
- To turn ON or OFF the panel/floor heating operation.
- In this mode, the outdoor unit will provide heating capacity to the indoor unit.
• HEAT + TANK MODE
- In this mode, the outdoor unit will provide heating capacity to the sanitary tank and indoor unit.
- This operation is not used when the sanitary water tank is not installed.
• TANK MODE
- To turn ON or OFF the sanitary tank operation.
- In this mode, the outdoor unit will provide heating capacity to the sanitary tank.
• COOL MODE
- To turn ON or OFF the panel operation.
- In this mode, the outdoor unit will provide cooling capacity to the indoor unit.
• COOL + TANK MODE
- In this mode, the outdoor unit will provide cooling capacity to the indoor unit.
- Indoor unit will control booster heater in sanitary tank.
QUIET
TO ENJOY QUIET ENVIRONMENT
• This operation reduces outdoor unit noise. In this condition, it may cause decrease in heating/cooling capacity.
HEATER
TO ENABLE THE BACKUP HEATER
• The backup heater provides extra heating capacity during cold outdoor temperature and only can operated at heat mode
operation for indoor unit when he was enabled by pushing this button.
• The backup heater will automatically turn ON when the setting conditions is fulfilled.
• To disabled the Heater operation manually, press the respective button again.
STATUS
SEARCH
CHECK
SYSTEM STATUS CHECK MODE
1.Press
CHECK
for 5 seconds to enter STATUS mode.
2.Press or to check the Water Inlet Temperature, Tank Temperature, Compressor Running Frequency or Error
History.
• Press
C
AN
C
E
L
to exit STATUS mode.
• Once STATUS mode is entered, “STATUS” indicator is ON.
• STATUS mode cannot be activated when the “SETTING” indicator is ON.

ENGLISH
7
• It is strongly recommended to contact the nearest authorized dealer to change the water temperature range.
• Using the control panel could set the temperature range for water outlet temperature and outdoor ambient temperature.
SYSTEM SETTING MODE
SET
SELECT
CANCEL
SETTING
TIMER OUTDOOR
HEAT
SETTING
STATUS
PUMPDW
BOOSTER
QUIET
TANK
WATER OUTLET
C
HEATER
OPERATION
FORCE
HEATER
ACTUAL
ON
COOL
Operation Mode Temperature display
SETTING indicator
Parameter *
1. Press
SET
for 5 seconds to enter “SETTING” mode. “SETTING” indicator is ON.
2. Press or to choose a parameter.
3. After selecting the desired parameter,press
SELECT
to enter the parameter.
4. Press or to set the desired temperature.
5. Press
SET
again to confirm the setting.
• Repeat steps 2 to 5 to set other parameters.
Operation
Mode Parameter * Description
HEAT Low outdoor ambient set temperature
(-15°C ~ 15°C).
HEAT High outdoor ambient set temperature
(-15°C ~ 15°C).
HEAT Water outlet set temperature at low
outdoor ambient temperature (25°C ~ 55°C).
HEAT Water outlet set temperature at high
outdoor ambient temperature (25°C ~ 55°C).
HEAT
OFF
Set temperature for turning OFF heating operation (5°C ~ 35°C).
HEATER
ON
Outdoor ambient set temperature for turning ON heater operation (-15°C ~ 20°C).
COOL Water set temperature during cool mode (5°C~20°C)
TANK Sanitary tank set temperature (40°C ~ 75°C).
WATER TEMPERATURE THERMO SHIFT SETTING
1. Press
SET
within 5 seconds.
• Repeat steps 3 to 5 to set the desired shift temperature (-5°C ~ 5°C).
Notes:
• Press
C
AN
C
E
L
or wait 30 seconds to exit “SETTING” mode.
• The setting temperature will be stored in the system once confirm.
• “SETTING” mode cannot be activated when the “PUMPDW” and “STATUS” indicator is ON.
ADVANCE OPERATION
Water Temperature
Outdoor Temperature

8
Timer Display
TIMER
1
MON TUE WEDTHU FRI SAT SUN
2 3 4 5 6
ON
OFF
Lights up if Timer
operation is selected
Day to be selected
ON Timer
To automatically switch “ON” the unit
6 different programs can be set in a day (1 ~ 6)
Indicates the selected day
Indicates the next timer operation day
Time to be selected (10 minutes step)
OFF Timer
To automatically switch “OFF” the unit
SET
SELECT
CANCEL
SETTING
CLOCK
OFF/ON
TIMER
Function Step
Enter timer mode Press
TIMER
.
Set day & time 1.
Press or to select your desired day.
2. Press
SELECT
to confirm
3. “1” will be blinking, press
SELECT
to set program 1.
4. Press
OFF/ON
to select ON or OFF timer.
5. Press or to select your desired time.
If you want to set the timer together with other operations, press
MODE
and
QUIET
.
6. Press
SET
to confirm program 1. The selected day will be highlighted with ▼.
• After 2 seconds, the display will move to the next program.
7. Repeat steps 4 to 7 to set programs 2 to 6.
• During timer setup, if no button is pressed within 30 seconds, or if the
SET
button is pressed the
setting at that moment is confirmed and timer setup is ended.
Add/Modify timer Repeat the steps above.
Disable timer Press
TIMER
, then press
CANCEL
.
Enable timer Press
TIMER
, then press
SET
.
Check timer 1. Press
TIMER
.
2. Press or until your desired day is shown, press
SELECT
to confirm your selection.
3. Press or to check the set programs.
Cancel timer 1. Press
TIMER
.
2. Press or until your desired day is shown.
3. Press
SELECT
to enter program setting.
4. Press or until your desired program is shown.
5. Press
CANCEL
to cancel the program.
WEEKLY TIMER SETTING
Notes:
• You can set the Timer for each day of the week (Monday to Sunday) with 6 programs per day.
• When the unit is switched on by the ON TIMER, it will use the previously set temperature to control the water outlet
temperature.
• Same timer program cannot be set in the same day.
• You may also select collective days with same timer setting.
• Promotes energy saving by allowing you to set up to 6 programs in any given day.

ENGLISH
9
0.2
0.40
0.30.1
MPa
TIMER OUTDOOR
HEAT
SETTING
STATUS
PUMPDW
BOOSTER
QUIET
TANK
WATER OUTLET
C
C
OFF/ON
HEATER
OPERATION
FORCE
HEATER
ACTUAL
TIMER
1
MONTUEWEDTHU FRI SATSUN
SOLAR REMOTE
NOTAVAILABLE
2 3 4 56
ON
OFF
COOL
INDOOR UNIT
CAUTION
• Switch off the power supply before cleaning.
WATER PRESSURE GAUGE
WATER PRESSURE GAUGE
0.2
0.40
0.30.1
MPa
• Do not press or hit the glass
cover with hard, pointed
objects. This may damage the
unit.
• Ensure that the water
pressure is between 0.05 to
0.2 MPa (0.1 MPa = 1 bar).
• In case the water pressure is
out of the above range, please
consult authorized dealer.
CLEANING INSTRUCTIONS
CLEANING INSTRUCTIONS
HINT
HINT
• Do not use benzene, thinner or scouring powder.
• Use only soap ( pH7) or neutral household detergent.
• Do not use water hotter than 40°C.
• To ensure optimal performance of the unit, cleaning
maintenance has to be carried out at regular intervals.
Please consult authorized dealer.
INDOOR UNIT & CONTROL PANEL
• Do not splash water directly.
• Wipe the unit gently with a soft, dry cloth.
EXTERNAL FILTER
• Please clean the external filter at least once a year. Fail to do so might cause filter clogged, consequent system
breakdown. Please consult authorized dealer.
OUTDOOR UNIT
• Do not obstruct the air inlet and air outlet vents, it may cause low performance or breakdown. Please remove obstacles to
assure the ventilation.
• During winter, please clean and remove the snow near outdoor unit so that the snow does not cover the air inlet and air
outlet vents.
INSPECTION
• In order to ensure optimal performance of the unit, seasonal inspections on the unit, external filter and field wiring have to
be carried out at regular intervals. This maintenance should be carried out by authorized dealer.
• Clear any obstruction at the air inlet and air outlet vents of outdoor unit.
FOR EXTENDED NON-USE
• Turn off the power supply.
NON SERVICEABLE CRITERIAS
NON SERVICEABLE CRITERIAS
TURN OFF POWER SUPPLY then please consult authorized dealer under the following conditions:
• Abnormal noise during operation.
• Water/foreign particles have entered the control panel.
• Water leaks from Indoor unit.
• Circuit breaker switches off frequently.
• Power cord becomes unnaturally warm.

10
TROUBLESHOOTING
The following symptoms do not indicate malfunction.
The following symptoms do not indicate malfunction.
SYMPTOM
SYMPTOM
CAUSE
CAUSE
Flowing sound during operation. ►• Refrigerant flow inside the unit.
Operation is delayed a few minutes after restart. ►• The delay is a protection to the unit’s compressor.
Outdoor unit emits water/steam. ►• Condensation or evaporation occurs on pipes.
Outdoor unit emits steam during heating mode. ►• This is due to defrost operation happens at the heat
exchanger.
Outdoor unit does not operate. ►• When the outdoor temperature is out of the operation
condition range, the heatpump system enter protection
control.
Air-to-Water Heatpump system operation will turn off. ►• If indoor unit water inlet temperature is lower than 20°C.
Backup heater power will turn on to heat up the water.
System difficult to heat-up. ►• When heating is operated by indoor unit together with
floor heating or panel heater simultaneously, there
may be case where warm water temperature is getting
lower and cause floor heating or panel heater heat-up is
weaken.
• When outdoor air temperature is low, it may be difficult to
get warm.
• Is the snow pile blocking the discharge outlet or intake
inlet of outdoor unit.
• When water outlet set temperature is low, it may be
difficult to get warm.
System cannot get warm instantly. ►• Due to the nature of the heatpump system, it may take
some time to heat-up the water if the unit is operated
from cold-start.
Operation starts after power resumes. ►• Unit is operates under auto restart function.
Check the following before calling for servicing.
Check the following before calling for servicing.
SYMPTOM
SYMPTOM
CHECK
CHECK
Heating/cooling operation is not working efficiently. ►• Set the temperature correctly.
• Is the panel heater/cooler valve closed.
• Clear any obstruction at the air inlet and air outlet vents
of outdoor unit.
Noisy during operation. ►• Check if the unit has been installed at an incline or the
cover is not closed properly.
The unit does not work. ►• Check if the circuit breaker is tripped.
Operation LED is no lit or control panel display
is blank. ►• Is the power supply off or power failure.
The operation LED blinks and error code appear on control panel display.
The operation LED blinks and error code appear on control panel display.
TIMER
TIMER
1
MON TUE WEDTHU FRI SAT SUN
2 3 4 5 6
ON
OFF
• Turn the unit off and reveal the error code to authorized dealer.
• Timer operation cancel when error code occur.
Force Heater Mode Button
Force Heater Mode Button
FORCE
• In case of a failure of the Air-to-Water Heatpump system, the backup heater can be used to heat
up the heating water. Press
FORCE
to switch on the backup heater.
• Press
OFF /ON
to stop the force heater operation.
• During Force Heater mode, all other operations are not allowed.