Vaillant V 12-025 W User manual

For the user
V 12-025 W
V 12-035 W
V 12-050 W
V 12-060 W
V 12-060 M2W
User Manual
Air Conditioner - climaVAIR
Split Wall-Mounted type
EN

2
Contents
Split wall-mounted User Manual
Contents
1 Your Safety
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
1.1 Symbols used
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
1.2 Proper Use of the Unit
. . . . . . . . . . . . . . . . . . . . . . .
3
2
Ext
reme Opera
ting Conditions
. . . . . . . . . . . . . .
3
3 Identification of the Unit
. . . . . . . . . . . . . . . . .
4
4 Declaration of Conformity
. . . . . . . . . . . . . . . .
4
5 Description of the Unit
. . . . . . . . . . . . . . . . . . .
4
5.1 Remote Controller
. . . . . . . . . . . . . . . . . . . . . . . . . . .
4
5.2
Features and benefits
. . . . . . . . . . . . . . . . . . . . . . . .
5
6
Getting started
. . . . . . . . . . . . . . . . . . . . . . . . .
6
6.1 Fitting the Remote Controller Batteries
. . . . . . . .
6
7 Operating Instructions
. . . . . . . . . . . . . . . . . . .
6
7.1 General Safety Considerations during Use
. . . . . .
6
7.2 Identification of Functions
. . . . . . . . . . . . . . . . . . . .
7
7.2.1 Remote Controller Buttons
. . . . . . . . . . . . . . . . . . .
7
7.2.2
Display Indicators
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
7
7.3 Advice on how to use the Remote Controller
. . . .
8
7.4 Connection/Disconnection of the Unit
. . . . . . . . . .
8
7.4.1
LI
GHT/LOCK functions
. . . . . . . . . . . . . . . . . . . . . . .
8
7.5 Selection of the Operation Mod
e
. . . . . . . . . . . . . .
8
7.5.1 Automatic Mode (AUTO)
. . . . . . . . . . . . . . . . . . . . . .
8
7.5.2 Cooling Mode (COOL)
. . . . . . . . . . . . . . . . . . . . . . . .
8
7.5.3 Dehumidifying Mode (DRY)
. . . . . . . . . . . . . . . . . . .
8
7.5.4 Heating Mode (HEAT)
. . . . . . . . . . . . . . . . . . . . . . . .
9
7.6 Defrosting
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9
7.7
Setting the Direction of the Airflow
. . . . . . . . . . . .
9
7.7.1 Horizontal Airflow
. . . . . . . . . . . . . . . . . . . . . . . . . . .
9
7.7.2 Vertical Airflow
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9
7.8 TURBO
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
0
7.9 Special Function Selection
. . . . . . . . . . . . . . . . . . .
1
0
7.9.1 SLEEP function
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
0
7.9.2 TIMER Function (CONNECTION USING TIMER)
. . .
1
1
7.10
Indicators of the unit
. . . . . . . . . . . . . . . . . . . . . . . . .
1
1
8 Advice for saving Energy
. . . . . . . . . . . . . . . . .
1
2
8.1 Suitable room Temperature
. . . . . . . . . . . . . . . . . . .
1
2
8.2 Eliminating Heat or Cold Sources
. . . . . . . . . . . . . .
1
2
8.3 Operation in Heating Mode (Heat Pump)
. . . . . . .
1
2
8.4 Ambient Temperature when absent
. . . . . . . . . . . .
1
2
8.5 Uniform Heating
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
2
8.6 Reduction in Consumption during Night Hours
(SLEEP Function)
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
2
8.7 Reduction in Consumption with programmed
Operating Time (TIMER Function)
. . . . . . . . . . . . . .
1
2
8.8 Appropriate Maintenance of the Unit
. . . . . . . . . . .
1
2
9 Troubleshooting
. . . . . . . . . . . . . . . . . . . . . . . . .
1
3
10 Maintenance
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
4
10.1 Cleaning the Indoor Unit
. . . . . . . . . . . . . . . . . . . .
1
4
10.2 Cleaning the Air Filters
. . . . . . . . . . . . . . . . . . . . . .
1
4
10.3 Cleaning the Outdoor Unit
. . . . . . . . . . . . . . . . . . .
1
4
11 Storage over a prolonged Period
. . . . . . . . . . .
1
5
12 Product Decommissioning
. . . . . . . . . . . . . . . .
1
5

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Split wall-mounted User Manual
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1 Your Safety
1.1 Symbols used
Danger!
Direct danger for life and health.
Danger!
Danger of electric shock.
Warning
!
Potentially dangerous situation for the product
and the environment
Note!
Useful information and indications
1.2 Proper Use of the Unit
This unit has been designed and manufactured for
acclimatisation purposes by means of air conditioning.
The use thereof for other domestic or industrial
purposes shall be the exclusive responsibility of the
persons specifying, installing or using them in that way.
Prior to handling, installing, starting up, using or
performing maintenance on the unit, the persons
assigned to perform these tasks should be familiar with
all the instructions and recommendations set forth in
the unit's installation manual and in this user manual.
The appearance of the purchased units might be slightly
different from the ones described in this manual, but
this does not affect the proper use and operation of the
appliance.
Note!
Keep the manuals throughout the service life of
the unit.
Note!
The information relating to this unit is divided
between two manuals: installation manual and
user manual.
Note!
The appliance is not intended for use by young
children or infirm persons without supervision.
Children should be supervised to ensure they do
not play with the appliance.
Note!
This equipment contains R-410A refrigerant. Do
not vent R-410A into atmosphere: R-410A, is a
fluorinated greenhouse gas, covered by Kyoto
Protocol, with a Global Warming Potential (GWP)
= 1975.
Note!
The refrigerant fluid contained in this
equipment must be properly recovered for
recycling, reclamation or destruction before
the final disposal of the equipment.
Note!
The relevant personnel performing the
maintenance operations related with the
handling of the refrigerant fluid must have the
necessary certification issued by local
authorities.
2 Extreme Operating Conditions
This unit has been designed to operate within the range
of temperatures indicated on Figure 2.1. Ensure that
these ranges are not exceeded.
CALEFACCIÓN
24ºC D.B.
Fig. 2.1 Operating ranges of the unit.
Legend
D.B. Temperature measured by dry bulb
Your Safety 1
Extreme operating conditions 2
Indoor
Outdoor
C
OOLING
HEATING
46 ºC D.B. (M2)
10 ºC D.B.
16 ºC D.B.
16 ºC D.B.
32 ºC D.B.
24 ºC D.B.
-15 ºC D.B.
32 ºC D.B.

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3 Identification of the Unit
This manual is valid for the Split system series. In order
to know the specific model of your unit please refer to
the unit nameplates.
The nameplates are located on the outdoor and indoor
units.
4 Declaration of Conformity
The manufacturer declares that this unit has been
designed and constructed in compliance with the
standard in force with regard to obtaining the CE
Marking.
5 Description of the Unit
This unit is comprised of the following elements:
- Indoor unit.
- Outdoor unit.
- Remote controller.
- Interconnecting services.
- Supplied accessories.
Figure 5.1 shows the unit components.
Fig. 5.1 Unit components.
Legend
1 Indoor Unit
2 Outdoor unit
3 Remote controller.
4 Interconnecting pipe work and electrical wiring (supplied by
others)
5 Condensate water pipe connection
5.1 Remote Controller
The infra red remote controller allows the unit´s
functions to be set as required.
3 Identification of the Unit
4 Declaration of Conformity
5 Description of the Unit

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5.2 Features and benefits
FUNCTION
DESCRIPTION
Valve protection
A cover used to protect the service valves from the effects of bad weather
Anti-freeze
All heat pump units will tend to freeze up during the colder winter months, the anti-freeze function
automatically defrosts the outdoor coil as required
Anti-corrosion casing
Outdoor unit made of galvanized steel and anti-corrosion materials. Resistant even in highly saline
environments
Table 5.1
Features and benefits.
Description of the Unit 5

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6 Getting started
6.1 Fitting the Remote Controller Batteries
Insert the batteries (2 No. size AA), as described below
(see Figure 6.1)..
Fig. 6.1 Fitting the remote controller batteries.
Legend
1 Battery lid
2 Batteries
A Pressure area for opening the lid
B Battery compartment
• Remove the battery lid by pressing gently on zone A
and pushing the lid downwards.
• Insert the batteries in the remote control ensuring
correct positive and negative polarity (Shown on the
battery compartment).
• Put the lid back on.
• Press the ON/OFF button (see Figure 7.1) to check that
the batteries are correctly inserted.
Note!
If nothing appears on the display after pressing
ON/OFF, refit or replace the batteries.
Note!
Replace the two batteries at the same time.
Warning
!
Danger of environmental contamination by not
disposing of the batteries properly.
When replacing the remote controller batteries,
dispose of batteries in the correct manner. Never
throw away in the rubbish.
7 Operating Instructions
7.1 General Safety Considerations during Use
Danger of injury and physical damage!
- Do not let children play with the air
conditioning unit.
The unit is not designed for use by children.
- Do not connect the equipment whilst using
insecticides or pesticides. These could settle
in the unit and harm the health of persons
with allergies to specific chemical
substances.
- Avoid prolonged direct exposure to cooled air
or extreme temperatures in the room. This
could be a health hazard.
- Do not insert your fingers or other objects in
the air inlets and outlets, or between the unit
louvres whilst the unit is operating. The high
speed of the fan can cause injuries.
Danger of injury and physical damage!
Danger of fire and explosion.
- Do not place any heat source with a
naked flame in the equipment airflow. Do not
use sprays or other flammable gases near
the air conditioning equipment. This could
cause a fire.
- In the event that any irregularity is detected
(such as a burning smell), unplug the unit
from the mains immediately and contact the
distributor/installer in order to proceed
properly.
If you continue to use the unit under these
irregular conditions, it could be
irrepairably damaged and cause short
circuiting or fire.
- Phone a specialist technician and ensure that
preventive measures are implemented to
avoid refrigerant gas leaks. Leaking
refrigerant of a certain density can cause
oxygen deficiency.
Danger!
Danger of electric shock.
Do not handle the equipment with wet or moist
hands.
Warning
!
Danger of breakdowns or malfunction.
- Do not place any object on or near to the
outdoor unit.
6 Getting started
7 Operating Instructions

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7.2 Identification of Functions
7.2.1 Remote Controller Buttons
Fig. 7.1 Overview of the buttons.
Legend
1 ON/OFF button
2 + - buttons (INCREASE/DECREASE)
3 MODE button (OPERATION MODE)
4 SWING button
5 FAN button (FAN SPEED)
6 SLEEP button (NIGHT TIME FUNCTION)
7 TIMER button (START-UP TIME)
8 TURBO button (MAXIMUM FAN SPEED)
9 ION button: function not available
10 LIGHT button
11 LOCK button
7.2.2 Display Indicators
Fig. 7.2 Overview of the indicators.
Legend
1 SLEEP indicator
2 Temperature indicator
3 SWING indicator
4 LIGHT indicator
5 LOCK indicator
6 TIMER indicator
7 TURBO indicator
8 FAN SPEED indicator
9 MODE indicators
Operating Instructions 7

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7.3 Advice on how to use the Remote Controller
Follow the recommendations below as to how to use the
remote controller:
- When in use, direct the head of the signal transmitter
directly to the indoor unit receiver.
- Keep the distance between the transmitter and the
receiver within 7 m.
- Avoid obstacles between the transmitter and the
receiver.
- If experiencing difficulties with the remote control
communicating with the indoor unit, reduce the
distance between the remote controller and the indoor
unit.
- Do not drop or strike the remote controller.
7.4 Connection/Disconnection of the Unit
Each time you press the button on the remote controller,
the signal is received by the air conditioner unit and the
unit emits a receiving sound.
In order to connect the unit:
• Press the ON button on the indoor unit or on the
remote controller; the unit will start to operate.
In order to disconnect the unit:
• Press the OFF button on the indoor unit or on the
remote controller; the unit will stop.
7.4.1 LIGHT/LOCK functions
• Press the LIGHT button to light the display of the
indoor unit. To switch the display back on, press the
LIGHT button once again.
• Press the LOCK button to activate the LOCK mode.
Use to lock all current settings. During LOCK mode the
remote control does not accept the operation of any
button except the LOCK button. To cancel the LOCK
mode press this button again.
7.5 Selection of the Operation Mode
Press the ON/OFF button on the remote controller
pointing at the unit. press the MODE button to select the
needed mode: auto, cool, dry, heat or fan.
7.5.1 Automatic Mode (AUTO)
In automatic mode (AUTO) the air conditioning unit
automatically selects the cooling (COOL) or heating
(HEAT) mode in accordance with the actual ambient
temperature.
In order to activate:
With the unit connected (see section 7.4):
• Press the MODE button.
• Select the automatic operation mode (AUTO)
7.5.2 Cooling Mode (COOL)
In cooling mode (COOL), the air conditioning unit only
allows cooling.
In order to activate:
With the unit connected (see section 7.4):
• Press the MODE button.
• Select the cooling operation mode (COOL).
• Press the + - buttons to select the temperature setting.
• Press the FAN button to select the fan speed.
-
Each time the FAN button is pressed, the fan speed
will be modified, increasing its power. There are
three different rates: Low, Med, High and AUTO
(indicator flashes).
- When the fan is configured in AUTO mode, the air
conditioning unit automatically sets the fan speed in
accordance with the actual ambient temperature.
7.5.3 Dehumidifying Mode (DRY)
In dehumidifying mode (DRY), the air conditioning unit
operates by removing the humidity from the
atmosphere.
In order to activate:
With the unit connected (see section 7.4):
• Press the MODE button.
• Select the dehumidifying mode (DRY).
• In DRY mode it is not possible to modify the
temperature, which remains set at 25ºC, nor the fan
speed, which remains set at Low.
7 Operating Instructions

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Operating Instructions 7
7.5.4 Heating Mode (HEAT)
In heating mode, the air conditioning only allows heating.
In order to activate:
With the unit connected (see section 7.4):
• Press the MODE button.
• Select the heating operation mode (HEAT).
• Press the + - buttons to select the temperature setting.
• Press the FAN button to select the fan speed.
-
Each time the FAN button is pressed, the fan speed
will be modified, increasing its power. There are
three different rates: Low, Med, High and AUTO
(indicator flashes).
- When the fan is configured in AUTO mode, the air
conditioning unit automatically sets the fan speed in
accordance with the actual ambient temperature.
7.6 Defrosting
When the outdoor air temperature is very low and the
humidity level is very high, the heat exchanger of the
outdoor unit will frost causing a negative impact on the
efficiency of the heating performance. In these cases,
the unit automatically triggers a defrosting function
which causes the heating operation to stop for 5 to 10
minutes:
- The fans of the Indoor and the Oudoor unit are
stopped.
- During defrost, the unit might generate some steam.
This is caused by fast defrosting and it does not
mean a performance failure.
- Once the unit completes the defrosting process, it
resumes the heating operation.
7.7 Setting the Direction of the Airflow
The direction of the airflow can be set in vertical and
horizontal directions.
Danger of injury and physical damage!
Avoid direct body contact with the powerful
airflows. Do not expose animals and plants
directly to the airflow. They could suffer
damage.
Warning!
Danger of breakdowns or malfunction.
Do not open the outlet louvres manually.
Note!
If the louvre does not work correctly, stop the
unit for one minute and restart it carrying out
the settings required with the remote controller.
Note!
In heating mode it is recommendable to direct
the louvres vertically.
Note!
In cooling mode it is recommendable to direct
the louvres horizontally.
7.7.1 Horizontal Airflow
Danger of injury and physical damage!
The horizontal airflow can only be adjusted
manually. Only do this with the unit switched
off.
• Stop the unit (see section 7.4).
• Direct the flaps manually to direct the airflow to the
left or right.
• Turn the unit back on, if you wish.
7.7.2 Vertical Airflow
• Press the VERTICAL SWING UP/DOWN to direct the
airflow upwards or downwards.
The vertical slat will be directed in accordance with
the positions allowed for each operation mode:
"NATURAL SWING", "ACTIVE SWING", "STOP".

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7.8 TURBO
Press TURBO button during COOL or HEAT mode
operation. The air rate can be set to HIGH and continue
to operate for 15 minutes. Press TURBO button again
twice to release the TURBO mode operation.
7.9 Special Function Selection
7.9.1 SLEEP function
The COOL, DRY, HEAT, AUTO modes can be set during
the nighttime hours to reduce the operation sound when
sleeping, etc..
In order to activate:
With the unit connected (see section 7.4):
• Press the SLEEP button to reduce the air flow sound
from the indoor unit.
• Press the SLEEP button once more to release this
mode.
The SLEEP mode should only be used at night. If it is
used uring the day, the cooling/heating capacity will be
reduced since the room temperature is too high (COOL
mode).
The unit is operational for a maximum of 24 hours in
SLEEP mode.
In COOL mode
The ambient temperature gradually increases 2ºC in
relation to the configured one to ensure that the
temperature does not drop excessively during sleeping
hours.
In HEAT mode
The ambient temperature gradually decreases 5ºC in
relation to the configured one to ensure that the
temperature does not rise excessively during sleeping
hours.
- During the first operating hour of the SLEEP function,
the ambient temperature will drop 2ºC below the
configured temperature.
- Once an hour has elapsed, the temperature will drop
2ºC more.
- Once three hours have elapsed, the temperature will
rise 1ºC.
- The unit will be operational for a further three hours
before stopping.
7 Operating Instructions

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7.9.2 TIMER Function (CONNECTION USING TIMER)
The unit can be automatically connected/disconnected
using the timer.
Note!
Before starting, make sure that the clock is
adjusted correctly.
In order to set the unit to disconnect automatically:
With the unit connected (see section 7.4):
• Press the TIMER button.
The timer settings range from 1 to 24 hours. Each time
the TIMER button is pressed the sequence will be as
follows: 1 - 2 - ... up to 24 and cancel (no indication). If
you continue pressing it starts counting all over again
• The selected time will be shown on the remote
controller display. During the countdown process the
display will always show the remaining time.
In order to set the unit to connect automatically:
Note!
The automatic connection can only be made with
the unit switched off.
• Press the OFF button.
• Press the TIMER button.
The timer settings range from 1 to 24 hours. Each time
the TIMER buttion is pressed the sequence will be as
follows: 1 - 2 - ... up to 24 and cancel (no indication). If
you continue pressing it starts counting all over again
• The selected time will be shown on the remote
controller display. During the countdown process the
display will always show the remaining time.
In order to cancel the TIMER mode:
• Press the TIMER button until 24 appears on display.
Press the TIMER button once more to cancel this
mode.
Note!
Restart the time configuration after replacing
the batteries or after a possible power failure.
7.10 Indicators of the unit
Fig. 7.8 Overview of the display in the indoor unit.
Legend
1 TURBO indicator
2 TIMER indicator
3 ON/OFF indicator
4 TEMPERATURE indicator
Operating Instructions 7

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8 Advice for saving Energy
8.1 Suitable room Temperature
Set the room temperature to an appropriate value to
guarantee physical wellbeing, comfort and, in any case,
to comply with the legal standard. Each degree above
this value significantly increases the energy
consumption.
The temperature must also be suitable for the specific
use being made of the room: the temperature of empty
rooms and bedrooms does not have to be the same as
the main room.
8.2 Eliminating Heat or Cold Sources
In the event that there are any heat (in cooling mode) or
cold (in heating mode) sources that could be eliminated
please do so (e.g. a window or a door which are not
properly closed). This will ensure that the unit consumes
less energy.
8.3 Operation in Heating Mode (Heat Pump)
Your unit, when operating in heating mode, acts as a
heat pump, i.e. it takes heat from the outside (via the
outdoor unit) and releases it inside (via the indoor unit)
in a fairly short time. Nevertheless, a conventional
heating system produces heat purely by consuming
energy. Therefore, heating a room using a heat pump is
far more economical than using conventional heating
(radiators, heaters, boilers, etc.).
8.4 Ambient Temperature when absent
During heating mode, an economic saving is made by
keeping the room temperature at approx. 5ºC lower than
the normal temperature. A reduction which exceeds
these 5ºC does not provide any further energy savings
since greater heating power is required for consecutive
periods of operation in normal operating conditions.
It is only worth reducing the temperature even further in
the event of prolonged absences, e.g. during holidays.
During winter when protection against freezing must be
guaranteed.
8.5 Uniform Heating
Often in a house only the one room is heated. In addition
to the surfaces which form the perimeter of this area,
i.e. the walls, doors, windows, ceiling and floor, the
adjacent rooms are cooler than the room temperature
therefore: thermal energy is unintentionally lost. It is
therefore difficult to adequately heat the room and an
unpleasant feeling of cold is felt (the same occurs when
leaving open doors which separate heated areas and
unheated areas in a limited way).
This is false economy: the heating is on and,
nevertheless, the ambient temperature is not pleasant.
Greater comfort and a more reasonable operating mode
are achieved by heating all the rooms in a house
uniformly, taking into account the use being made of
each room (the temperature of empty rooms and
bedrooms does not have to be the same as the main
room, as long as they are not significantly cooler than
the main room).
8.6 Reduction in Consumption during Night Hours
(SLEEP Function)
Your unit has a SLEEP function which allows the
temperature to be modified automatically in relation to
the predetermined values (in heating mode the
temperature decreases slightly; in cooling mode the
temperature increases slightly) during sleep setting
period. Thus, apart from greater comfort being provided
there is also a reduction in the electricity consumption.
For more details regarding the SLEEP function, please
consult section 7.7.1).
8.7 Reduction in Consumption with programmed
Operating Time (TIMER Function)
By using the TIMER function you can adjust the
operation start time of your unit. Therefore, it is possible
to programme the operation of your unit to make it
function only when required and thus achieve more
economic operation.
8.8 Appropriate Maintenance of the Unit
A unit in perfect condition operates efficiently, taking
maximum advantage of the energy it consumes. Ensure
that your unit is correctly serviced (for more details
please consult section 10). In particular, make sure that
the filters are kept clean and that the air inlets and
outlets are not obstructed either on the indoor or
outdoor unit. Failure to do so will lead to an increase in
energy consumption.
8 Advice on saving Energy

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9 Troubleshooting
The table below describes a selection of problems with
their possible causes and solutions, see Table 9.1.
If these solutions do not solve the problem contact your
usual installer or call your nearest Vaillant office.
SYMPTOMS
POSSIBLE CAUSES
POSSIBLE SOLUTION
The system does not work at all (the
ventilation does not start)
The selector is set to "O" (stop)
Position the selector to "I" (start)
The unit is unplugged
plug the unit to the power supply
Power supply cut
Reconnect the power supply
The thermostat is set to an excessively high
temperature in Cooling mode or excessively
low temperature in Heating mode
Set the temperature correctly
The operating time is not set to ON
Set the time on the remote controller
The remote controller batteries have run out
Replace the batteries
The fuse has blown
Consult after sales service
Continuous tripping of from the circuit
breaker or fuse
Consult after sales service
Very low line voltage
Consult your electrician
Insufficient cooling or heating
Doors and / or windows open
Close the doors and/or windows
Heat source nearby (e.g. lots of people in the room)
If possible, remove the heat source.
The thermostat is set to an excessively high
temperature in cooling mode or excessively
low in heating mode
Set the temperature properly
Presence of an obstacle in front of the air
inlet or outlet in the indoor or outdoor unit
Remove the obstacle to allow the air to
circulate properly.
The ambient temperature has not reached
the designated level
Wait for a few moments
Dirty or blocked air filter
Clean the air filter
Power plug or cord excessively hot
Consult after sales service
Faulty insulation of power plug or cord
Consult after sales service
The operating unit interferes with the radio,
TV or other appliances
Consult after sales service
Abnormal noises of the unit
Cracking noises can be caused by the refrigerant
circulating inside the unit during operation
Cracking noises can be caused by heat expansion
or contraction of plastics when the unit is stopped
Consult after sales service
Odors come out from the unit
This can sometimes be caused by tobacco or
cosmetics smell sticked to the unit
The unit cannot be restarted just after
disconnecting
The compressor protection has been
activated for three minutes.
Wait three minutes before restarting the unit
Abnormal operation of the unit
Pull out the power plug and wait three minutes
before pulling it in again. Restart the unit.
Consult after sales service
Excessive or non-existent cooling or heating
The operating mode (COOL/HEAT) is not selected
Check the operating mode selected.
The air inlet or outlet on the indoor or
outdoor unit is obstructed.
Remove the obstacle causing the blockage
During the operation in DRY mode the air
does not flow
At times, when in DRY mode, the airflow
stops to prevent steam of dehumidified
moisture and to save energy.
mist comes out of the unit during the
operation in COOL mode
It can sometimes occur when the temperature
and the humidity level of the room are
very high. It will disappear by lowering the
temperature and the humidity level.
When running in HEAT mode there is no
airflow.
In HEAT mode the air does not flow until it is hot enough,
thereby avoiding a jet of cold air.
For the same reason, the air stream may not be variable.
The air does not blow for 6 to 12 minutes in
heating mode.
When the outdoor temperature is low
and the humidity level is high, the unit
automatically starts a defrosting process.
Please wait for the process to complete.
The LCD on the remote controller is blurred
or with all indicators showing
The remote controller batteries have run out
Replace the batteries
The remote controller does not work
properly during the operation of the unit
Remote controller signals are not received
The remote controller is exposed to direct
sunlight or strong lighting. Remove the
light source source.
Consult after sales service
Table 9.1 Troubleshooting.
1
1
Troubleshooting 9

14
Split wall-mounted User Manual
10 Maintenance
Danger!
Danger of electric shock.
Disconnect the unit and isolate the mains
supply before proceeding to carry out
maintenance on the unit. This will prevent
injuries.
Danger!
Danger of electric shock.
Do not clean the unit with water.
Warning
!
Danger of breakdowns or malfunction.
Do not use petrol, solvents or polishes when
cleaning the unit.
10.1 Cleaning the Indoor Unit
• Wipe the outer part of the unit with a soft dry cloth.
• Occasionally remove dust from the inlet surface.
10.2 Cleaning the Air Filters
The air filter traps the dust circulated from the room
into the indoor unit.
If the filter becomes blocked, the air conditioner's
efficiency will be reduced, the compressor could be
damaged and the indoor unit's heat exchanger coil could
freeze up.
Clean the air filter regularly to prevent this from
happening. In order to do so:
• Remove the air filters.
• Remove the dust or the dirt in the filters using a
vacuum cleaner or cleaning them with lukewarm water
(approx. 30ºC).
• Ensure that the filters are dried completely before
putting them back into the unit. The activated carbon
filters (where fitted) can be reactivated by placing in
direct sunlight. If strange odours are still smelt replace
with new. If strong odours continue to be a problem,
contact your after sales service provider to fully deep
clean the unit.
Warning
!
Do not use hot water to clean the filters.
Warning
!
Do not leave the filters to dry near fire.
Warning
!
Do not force the filters when removing or
installing the in the unit.
Warning
!
Danger of breakdowns or malfunction.
Do not
attach perfume systems, anti-odour
systems etc. in the filter or in the inside air
return.
This can damage and soil the heat exchanger
coil. If necessary, install these systems at the
unit's outlet point and ensure they only run when
the fan is on.
10.3 Cleaning the Outdoor Unit
• Wipe the outer part of the unit with a soft dry cloth.
• Occasionally remove dust and leaves from the inlet
surface.
• Periodically clean the heat exchanger fins with a soft
brush when the unit is located in a dusty environment.
• Occasionally check the base of the outdoor unit.
Danger of injury and physical damage!
A damaged or deteriorated base could make the
unit fall down and cause physical or material
damage.
Danger of injury and physical damage!
Except for servicing or replacement, do not
dismantle the outdoor unit outlet.
Exposing the
fan can be very dangerous.
Note!
We advise you to contact a reliable air
conditioner specialist or the Vaillant Group
Technical Service to contract a preventative
maintenance service. This will help to prolong the
life of your equipment and improve its
performance.
10 Maintenance

15
Split wall-mounted User Manual
EN
11 Storage over a prolonged Period
If you do not intend to use the unit over a period of
time:
• Put the fan into operation for half a day at a
temperature of 30ºC in order to dry the inside of the
unit.
• Stop the unit and disconnect the power switch.
• Clean the air filters.
• Remove the batteries from the remote controller.
Before turning the unit back on:
• Position the remote controller batteries.
• Check that the air filters are not blocked.
• Check that the air outlet and inlet are not blocked.
• Check that the installation stand is in perfect
conditions, with no evidences of rust or corrosion.
• Check if unit is properly grounded.
• Check that the power switch is connected.
Note!
The air condioner will consume approx. 5W of
electric power after the unit is turned off. For
purposes of energy saving and safety, it is
advisable to pull out the plug during a period in
which the unit is not working.
Danger of injury and physical damage!
In the event that the equipment is removed and
reinstalled at a later date, ensure that the
equipment is properly installed by personnel
with the appropriate qualifications (see manual
for installer). Otherwise water leakage,
refrigerant leakage, short circuiting or even fire
could be caused.
12 Product Decommissioning
Danger of injury and physical damage!
When disposing of the product, ensure that is
done safely and in accordance with local by-
laws and reulations. In order to do so follow the
steps described in the installation manual in
reverse order and use the necessary tools and
protection equipment.
Ensure that the disassembly is carried out by
qualified, technically competent individuals.
Warning
!
Danger of environmental contamination when
disposing of the unit. To avoid this, follow the
instructions described in this section.
Fig. 12.1 Recycling symbol.
Your product is marked with the recycling symbol (see
Figure 12.1), which means that the following must be
taken into account during the disposal:
• Do not mix the unit with other domestic, unclassified
waste.
• Dispose of the equipment in accordance with the
relevant local and national standards, correctly and in
an environmentally-friendly way.
• Hand in the unit to a waste management company
that is authorised by the local authorities to transport
it to a proper treatment plant.
• If the product is being replaced with a new product
destined for the same use, hand in the old product to
the distributor of the new unit for waste management
as appropriate.
• Contact local authorities for more information.
Storage over a prolonged Period 11
Product Decommissioning 12

V12-W-M2W-U_EN 07/2009
Vaillant reserves the right to make modifications without prior warning.
Vaillant Ltd
Vaillant House Medway City Estate Trident Close Rochester Kent ME2 4EZ
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