DOMUSA DUAL CLIMA 8 User manual

INSTALLATION AND OPERATING INSTRUCTIONS
DUAL CLIMA

Thank you for choosing a DOMUSA TEKNIK heat pump. From the range of
DOMUSA TEKNIK products you have chosen the DUAL CLIMA model. This is a
heat pump capable of providing the ideal level of comfort for your home,
always with a suitable hydraulic installation.
This manual forms an essential part of the product and it must be given to the
user. Read the warnings and recommendations in the manual carefully, as they
contain important information on the safety, use and maintenance of the
installation.
This water pump must be installed by qualified personnel only, in accordance
with the legislation in force and following the manufacturer’s instructions.
The start-up of this heat pump and any maintenance operations must be
carried out only by Official Technical Assistance Services of DOMUSA TEKNIK.
Incorrect installation of this heat pump could result in damage to people,
animals or property, and the manufacturer will not be held liable in such cases.

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CONTENTS Page
1SAFETY WARNINGS................................................................................................................................................................... 2
1.1 USAGE AND INSTALLATION WARNINGS .........................................................................................................................................................2
1.2 PERSONAL SAFETY WARNINGS .......................................................................................................................................................................2
1.3 TRANSPORT,STORAGE AND HANDLING WARNINGS ......................................................................................................................................3
1.4 FREEZE PROTECTION WARNINGS ....................................................................................................................................................................3
2ELECTRONIC CONTROLLER .................................................................................................................................................... 4
2.1 CONTROL BUTTONS........................................................................................................................................................................................4
2.2 DIGITAL DISPLAY............................................................................................................................................................................................5
3SWITCHING THE HEAT PUMP ON AND OFF ..................................................................................................................... 6
4OPERATION.................................................................................................................................................................................. 6
4.1 OPERATING MODE SELECTION........................................................................................................................................................................6
4.2 AUTO MODE ...........................................................................................................................................................................................6
4.3 COOLING MODE .......................................................................................................................................................................................7
4.4 HEATING MODE ........................................................................................................................................................................................7
4.5 DHW MODE .............................................................................................................................................................................................7
4.6 AUTO AND DHW MODE +..............................................................................................................................................................7
4.7 COOLING AND DHW MODE +..........................................................................................................................................................8
4.8 HEATING AND DHW MODE +...........................................................................................................................................................8
4.9 ANTI-LEGIONELLA FUNCTION ........................................................................................................................................................................8
5TEMPERATURE SELECTION..................................................................................................................................................... 9
5.1 ADJUSTING THE COOLING MODE SETPOINT TEMPERATURE...........................................................................................................................9
5.2 ADJUSTING THE HEATING MODE SETPOINT TEMPERATURE ...........................................................................................................................9
5.3 ADJUSTING THE DHW MODE SETPOINT TEMPERATURE............................................................................................................................. 10
5.4 ADJUSTING THE ANTI-LEGIONELLA FUNCTION PARAMETERS ....................................................................................................................10
6ADDITIONAL FUNCTIONS.....................................................................................................................................................11
6.1 NIGHT MODE...............................................................................................................................................................................................11
6.2 OPERATION WITH ROOM THERMOSTAT ...................................................................................................................................................... 12
6.3 OPERATION WITH A ROOM SENSOR ............................................................................................................................................................ 12
7CLOCK AND TIMER SETTINGS..............................................................................................................................................13
7.1 TIME AND DAY SETTINGS............................................................................................................................................................................. 13
7.2 TIMER SETTINGS ..........................................................................................................................................................................................13
8OPERATION ACCORDING TO OUTDOOR WEATHER CONDITIONS (AU)...............................................................16
9INSTALLATION INSTRUCTIONS...........................................................................................................................................17
9.1 LOCATION.................................................................................................................................................................................................... 17
9.2 ACCESSORIES SUPPLIED ..............................................................................................................................................................................18
9.3 HEAT PUMP FASTENING .............................................................................................................................................................................. 19
9.4 CONDENSATES DRAINAGE ..........................................................................................................................................................................19
9.5 HYDRAULIC INSTALLATION .........................................................................................................................................................................20
9.6 ELECTRICAL CONNECTIONS ......................................................................................................................................................................... 22
9.7 FREEZE PROTECTION ...................................................................................................................................................................................30
10 CONFIGURING THE HEAT PUMP.........................................................................................................................................32
11 TECHNICAL MENU...................................................................................................................................................................32
12 COMMISSIONING.....................................................................................................................................................................33
12.1 PRIOR WARNINGS ........................................................................................................................................................................................ 33
12.2 START-UP.....................................................................................................................................................................................................33
12.3 EQUIPMENT DELIVERY ................................................................................................................................................................................. 34
13 MAINTENANCE.........................................................................................................................................................................34
14 TECHNICAL CHARACTERISTICS...........................................................................................................................................35
15 ELECTRICAL DIAGRAMS ........................................................................................................................................................36
15.1 NOMENCLATURE .........................................................................................................................................................................................36
15.2 DUAL CLIMA 8 ............................................................................................................................................................................................37
15.3 DUAL CLIMA 11.......................................................................................................................................................................................... 38
15.4 DUAL CLIMA 16.......................................................................................................................................................................................... 39
16 DIAGRAMS AND MEASUREMENTS....................................................................................................................................40
17 ALARM CODES..........................................................................................................................................................................41

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1SAFETY WARNINGS
1.1 Usage and installation warnings
DUAL CLIMA heat pump must be installed by personnel authorised by the Ministry of Industry, in
compliance with the applicable laws and regulations. The precautions detailed here cover very
important issues. Please be sure to follow them carefully.
Read carefully this instruction manual and keep it in a safe, easily-accessible place. DOMUSA
TEKNIK will not be liable for any damages caused by failure to follow these instructions.
This heat pump is suitable for use in both heating and cooling installations and can be combined
with fan coils, underfloor heating/cooling, low-temperature radiators, and domestic hot water
tanks (optional). It must be connected to a heating/cooling installation and/or a domestic hot water
distribution network and compatible with its performance and power.
This appliance must only be used for the purpose for which it has been expressly designed. Any
other use is considered unsuitable and therefore hazardous. The manufacturer shall not be
considered liable under any circumstances for damage caused by unsuitable, erroneous or
irrational use.
Remove all the packaging and check the contents are complete. In case of doubt, do not use the
heat pump. Contact your supplier. Keep the packaging elements out of reach of children, as they
can be dangerous.
Improper installation or placement of equipment or accessories may cause electrocution, short
circuit, leakage, fire, or other damage to the equipment. Use only accessories or optional
equipment manufactured by DOMUSA TEKNIK and designed specifically to work with the
products presented in this manual. Do not modify, replace or disconnect any safety or control
device without first consulting the manufacturer or the Official Technical Assistance Service of
DOMUSA TEKNIK.
When it is decided not to use any more the heat pump, disable the parts that could represent a
potential hazard.
1.2 Personal safety warnings
Always wear appropriate personal protective equipment (gloves, safety goggles, etc.) when
performing installation and/or maintenance on the unit.
Do not touch any switch with wet fingers. Touching a switch with wet fingers may cause electric
shock. Before accessing the electrical components of the heat pump, disconnect the main power
supply completely.
Disconnect all electricity sources before dismantling the cover panel from the electric panel or
before making any connections or accessing electrical parts.
To avoid electrocutions, be sure to turn off the power for 1 minute (or more) before servicing the
electrical parts. Even after 1 minute, always measure the voltage at the terminals of the main circuit
capacitors and other electrical parts before touching them and make sure that the voltage is equal
to or less than 50 Vdc.

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When the cover panels are disassembled, the energised parts can be easily accessed. Never leave
the unit unattended during installation or during maintenance work when the cover panel is
removed.
Do not touch the coolant pipes, water piping, or internal parts during and immediately after
operation. Pipes and internal parts may be excessively hot or cold, depending on the use of the
unit.
The hands may be burned by cold or heat in case of improperly touching pipes or internal parts. To
avoid injury, wait until the pipes and internal parts return to their normal temperature.
Alternatively, if access is required, be sure to wear appropriate safety gloves.
1.3 Transport, storage and handling warnings
DUAL CLIMA heat pump must be transported, handled and stored vertically. Tipping the machine
may cause the oil to be emptied inside the compressor, causing premature rupture of the machine
when the machine is started.
OK NO OK
The heat pump packaging has a "tilt indicator" label to ensure that the machine has not been
overturned during transport and storage. Before receiving the machine from your supplier
(distributor), check the status of this indicator and refuse the device without unpacking it if
the warning switch of the label indicates that it has been overturned.
Do not twist, loosen or pull the external electric cables of the heat pump. Do not insert any sharp
objects through the fan grille or into the fan itself.
Do not wash the interior of the heat pump with water as this may result in electric shock or fire. For
any cleaning and/or maintenance operations, disconnect the main power supply.
1.4 Freeze protection warnings
DUAL CLIMA heat pump is a machine that is installed in the exterior of the house, so that it will be
exposed to the extreme climatic conditions of cold in the periods of frost. Due to this, it is of
paramount importance that this type of machine is protected against such frost. The freezing of the
water inside the heat pump causes the heat pump to breakdown, with the subsequent interruption
of its operation and major economic expenses involving its repair.
It is mandatory to use a safety system in the installation to prevent the freezing of water in the
machine. DOMUSA TEKNIK proposes the use of glycol in the water circuit of the pump, or some
antifreeze valve system to empty the installation in conditions of low temperatures. Carefully read
the "Freeze Protection" section in this manual for more detailed information on these systems.
DOMUSA TEKNIK will not cover damages caused by the lack of any of these antifreeze safety
systems.

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The electronic controller of the DUAL CLIMA heat pump has a function for protection against the
freezing of the water in its interior in periods of frost. For this function to remain active and on alert,
the heat pump must be connected to the mains and have a power supply, even if it is switched off
or not in use.
A water filter should be installed in the installation, in order to avoid obstructions in the water
circuit of the heat pump. It must be installed in the return circuit of the heat pump and MUST be
installed before filling and circulating the water through the installation. The water filter should be
checked and cleaned, if necessary, at least once a year. IN new installations, however, it is advisable
to check it within the first few months of its commissioning.
2ELECTRONIC CONTROLLER
2.1 Control buttons
The electronic controller of the DUAL CLIMA heat pump has 6 control buttons, through which all
the features and adjustable settings can be managed.
Power button: This button switches the heat pump on and off. It can also be used to exit
the different adjustment menus (Escape key).
Mode button: This button selects the operating mode.
Confirmation button: This button saves and confirms the selected adjustment value.
Adjustment buttons: Pressing these buttons increases and decreases the selected
adjustment value. It can also be used to navigate within the
different adjustment menus.
Clock button: This button accesses the adjustments related to the time and time
programming of the heat pump.

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2.2 Digital Display
The controller of the DUAL CLIMA heat pump incorporates a digital display for the viewing and
adjustment of the different parameters of the heat pump. The display has different display areas
and sets of icons and numbers that indicate the different statuses of the heat pump.
Operating modes: Additional functions:
AUTO mode enabled. Anti-legionella Function enabled.
Cooling Mode enabled. Antifreeze Function enabled.
Heating Mode enabled. Defrost Function activated.
DHW Mode enabled. Room Thermostat function.
Alarm display.
Temperature display: Clock Timer:
Numerical display. Time digits.
Temperature unit, Celsius degrees. Time programmer adjusted.
Temperature adjustment. On programming point (1, 3 or 5).
Heat pump water temperature. Off programming point (2, 4 or 6).
Temperature of the DHW tank. Time schedule activated.
Indication of active components:
Water circulator pump activated.
Compressor activated.
Resistor or auxiliary energy
activated.
Fan activated.

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3SWITCHING THE HEAT PUMP ON AND OFF
To turn on the heat pump press the button . The heat pump will turn on in the last operating mode
previously selected and at least one of the operating mode icons ( ) will appear on the
digital display.
To turn off the heat pump, press the button again. The heat pump will proceed to the shutdown
sequence and all operating mode icons on the digital display will disappear.
4OPERATION
4.1 Operating mode selection
Depending on the set-up of your installation, the DUAL CLIMA heat pump will be able to manage
up to 7 different operating modes. To select these operating modes, press the button
successively. The following modes will be displayed:
AUTO mode.
Cooling Mode.
Heating Mode.
Domestic Hot Water (DHW) Mode.
+ AUTO and DHW mode
+ Cooling and DHW mode
+ Heating and DHW mode
Depending on the configuration of your installation, some of the operating modes listed may not
be selectable. Please read carefully the following sections, which describe in detail the operation of
these modes.
4.2 AUTO mode
This mode is selectable only if the heating/cooling installation is ready for operation in Cooling
mode (cooling floor, fan coils, etc.) and the heat pump is configured for this purpose.
In this operating mode, the electronic controller of the heat pump, depending on the temperature
outside the home, will automatically decide when to activate the heating or cooling mode of the
heating/cooling installation. If the outside temperature is below 15°C, the heating mode will be
activated; if the outside temperature is above 25 ºC, the cooling mode will be activated. If the
outside temperature is between 15 ~ 25°C, the last operating mode will remain active. For more
information on each of these operating modes, read the following sections of the manual carefully.
This mode will operate only on the heating/cooling installation, disabling the DHW production
service, if any.

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4.3 Cooling mode
This mode is selectable only if the heating/cooling installation is ready for operation in Cooling
mode (cooling floor, fan coils, etc.) and the heat pump is configured for this purpose.
In this operating mode, the DUAL CLIMA heat pump will cool and keep the water in the
heating/cooling installation at the desired temperature. To do this, select the desired cooling
temperature setpoint (see "Temperature Selection") and the temperature of the room thermostat (if
any) (see "Operation with Room Thermostat").
This mode will operate only on the heating/cooling installation, disabling the DHW production
service, if any.
4.4 Heating mode
In this operating mode, the DUAL CLIMA heat pump will heat and maintain the water in the
heating/cooling installation at the desired temperature. To do this, select the desired heating
temperature setpoint (see "Temperature Selection") and the temperature of the room thermostat (if
any) (see "Operation with Room Thermostat").
This mode will operate only on the heating/cooling installation, disabling the DHW production
service, if any.
4.5 DHW mode
This mode will be selectable only if the installation has a Domestic Hot Water tank connected and
the heat pump is configured for it.
In this operating mode, the DUAL CLIMA heat pump will heat the domestic water of the DHW tank
up to the desired temperature, allowing Domestic Hot Water service to the home. To do this, select
the desired DHW setpoint temperature (see "Temperature Selection"). Once the desired temperature
has been reached, the heat pump will stop and wait to receive the DHW demand.
This mode will operate only on the installation of the DHW tank, disabling the heating and/or
cooling installation of the heating/cooling installation.
4.6 AUTO and DHW mode +
This mode will be selectable only if the heating/cooling installation is ready to operate in Cooling
mode (cooling floor, fan coils, etc.); the installation has a connected domestic hot water tank and
the heat pump is configured for it.
This operating mode is the combination of the AUTO and DHW modes simultaneously. When the
DHW demand is enabled, the heat pump will disable the heating or cooling service and enable the
Hot Domestic Water production mode, with the production of priority DHW relating to the heating
or cooling of the heating/cooling installation. Once the desired DHW temperature is reached, the
heat pump will re-enable automatic heating or cooling of the installation (see "AUTO Mode").

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4.7 Cooling and DHW mode +
This mode will be selectable only if the heating/cooling installation is ready to operate in Cooling
mode (cooling floor, fan coils, etc.); the installation has a connected domestic hot water tank and
the heat pump is configured for it.
This operating mode is the combination of the Cooling and DHW simultaneously. When the DHW
demand is enabled, the heat pump will disable the Cooling mode and will enable the Domestic Hot
Water production mode, with the production of priority DHW relating to the cooling of the
heating/cooling installation. Once the desired DHW temperature is reached, the heat pump will re-
enable the Cooling mode.
4.8 Heating and DHW mode +
This mode will be selectable only if the installation has a Domestic Hot Water tank connected and
the heat pump is configured for it.
This operating mode is the combination of the Heating and DHW modes simultaneously. When the
demand for DHW is activated, the heat pump will disable the Heating mode and will enable the Hot
Domestic Water production mode, with the production of priority DHW relating to the heating of
the heating/cooling installation. Once the desired DHW temperature is reached, the heat pump will
re-enable the Heating mode.
4.9 Anti-Legionella function
This function prevents the proliferation of Legionella bacteria in the domestic hot water stored in
the tank, so it will only be available if the installation has a connected Domestic Hot Water tank and
the heat pump is configured for it. In addition, in order to make the function effective, it will be
essential for the tank to have a heating component installed, in order to reach the temperatures
required to eradicate the bacteria.
The function will periodically raise the temperature of the Domestic Hot Water from the tank to a
temperature of 60~70 ºC. To do this, the desired temperature and periodicity can be selected (see
"Temperature Selection"). This function will be activated regardless of the operating modes that are
activated at the time of starting, even when the heat pump is in Standby mode.
In addition, it is possible to activate the function manually, keeping the button pressed during 5
seconds. Once the function is activated, it is not possible to stop it and it will have to wait until it
finished, in order that the machine returns to its normal operation.

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5TEMPERATURE SELECTION
The desired setpoint temperatures for each operating mode can be adjusted by means of a
temperature selection menu. To access it, with the heat pump on (button ), keep buttons +
pressed simultaneously during 3 seconds. The display will show the cooling setpoint temperature
flashing:

On the menu, successively press to browse through all setpoint settings of the different operating
modes available:

The following sections describe in detail the process of setting the temperature setpoint for each
mode. Once the desired setpoints are set, press to exit the temperature selection menu. If a period
of more than 15 seconds of inactivity (no buttons pressed) is detected, the electronic controller will
automatically exit the menu.
5.1 Adjusting the cooling mode setpoint temperature
The selectable value range for the Cooling mode is 10~25ºC. The
default factory value is 12 ºC, and by means of buttons it may
increase or decrease, respectively. Once the desired value has been
selected, press button to save it.
For the correct adjustment of the appropriate value of this operating mode, the recommendations
of the installer or official Technical Service of DOMUSA TEKNIK should be followed. Depending on
the type of installation, the location (climatic zone) and the relative humidity of the home,
excessively low temperatures of the Cooling mode setpoint may create "undesired" condensations
in the heating/cooling installation, causing deterioration and damage in the home.
IMPORTANT: DOMUSA TEKNIK will not be held liable for any damage and/or faults, in either
the installation or the home, caused by an inadequate selection of the setpoint
temperature of the Cooling mode.
5.2 Adjusting the heating mode setpoint temperature
The selectable value range for the Heating mode is AU, 10~25 ºC.
The default factory value is 45 ºC, and by means of buttons it
may increase or decrease, respectively. Once the desired value has
been selected, press button to save it.

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In addition to the temperature values, in the Heating mode, the "AU" value can be selected as the
setpoint, by pressing after selecting the value 10 ºC. Select this value to enable the operation
according to the outdoor weather conditions for that mode. The adjustment of the setpoint
temperature will be carried out automatically by the electronic controller according to the
temperature measured outside the home, according to operating curves pre-set by the installer or
the Official Technical Assistance Service (see "Operation According to Outdoor Weather Conditions").
NOTE: If automatic operation is selected according to the external climatic conditions ("AU"),
an incorrect adjustment of the operating curves may cause the heating installation not
to generate the desired comfort in the home, failing to provide heating in extreme
weather conditions of cold and/or causing overheating in hot weather conditions.
5.3 Adjusting the DHW mode setpoint temperature
The selectable value range for the DHW mode is 10~60 ºC. The
default factory value is 50 ºC, and by means of buttons it may
increase or decrease, respectively. Once the desired value has been
selected, press button to save it.
If the desired temperature in the tank is higher than 50 ºC, it is essential to install an auxiliary heat
source in the tank (electric heating resistor, auxiliary boiler, etc.). The DUAL CLIMA heat pump will
heat the water in the tank to 50 ºC and, from this temperature, activate the auxiliary source to reach
the desired upper temperature.
5.4 Adjusting the Anti-Legionella function parameters
The operation of the anti-legionella function will depend on 4 adjustable parameters, which will be
selected by successive press of button.
Anti-Legionella Temperature
The selectable value range for the Anti-Legionella function is
60~70 ºC. The default factory value is 65 ºC, and by means of
buttons it may increase or decrease, respectively. Once the
desired value has been selected, press button to save it.
Frequency
This parameter adjusts the periodicity (in days) at what the anti-
legionella function will be activated. The selectable value range
is 7~99 days. The default factory value is 7 days, and by means of
buttons it may increase or decrease, respectively. Once
the desired value has been selected, press button to save it.
Start Time
This parameter adjusts the time at what the anti-legionella
function will be activated. The selectable value range is 0~23
hours. The default factory value is 1 (at 1:00 am), and by means
of buttons it may increase or decrease, respectively. Once
the desired value has been selected, press button to save it.

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Maintenance Minutes
This parameter adjusts the time during which the function will
continue activated once the selected temperature is reached.
The selectable value range is 10~99 minutes. The default factory
value is 10 minutes, and by means of buttons it may
increase or decrease, respectively. Once the desired value has
been selected, press button to save it.
For the anti-legionella function to raise the temperature of the tank to a temperature between
60~70 ºC, it is essential to install an auxiliary heat source in the tank (electric heating resistor,
auxiliary boiler, etc.). The DUAL CLIMA heat pump will heat the water in the tank to 50 ºC and, from
this temperature, activate the auxiliary source to reach the adjusted temperature. If this auxiliary
heating source is not available, the heat pump will heat the water in the tank to 50 ºC and keep the
temperature for 80 minutes before deactivating the function.
NOTE: In case of not having an auxiliary heating source that allows raising the DHW
temperature above 60 ºC, the anti-legionella function will not ensure the eradication
of said bacteria.
6ADDITIONAL FUNCTIONS
6.1 Night Mode
With the aim of reducing the number of activations and the sound impact of the heat pump during
particularly sensitive times (night), the DUAL CLIMA heat pump allows the activation of the Night
operating mode. During the Night operating mode, the DHW will automatically raise the adjusted
setpoint temperature by +3 ºC, the Heating mode will automatically reduce its setpoint
temperature by -2 ºC, and finally, the Cooling mode will automatically raise its setpoint temperature
by +2 ºC. In addition, to reduce the noise impact, the outdoor fan will operate at low speed.
To activate and configure this operating mode, parameters P47, P48 and P49 should be set in the
Technical menu (see "Technical Menu"). The heat pump is supplied by default with the Night mode
activated. To deactivate it, parameter P47 must be set to value 0. In addition, the start time of Night
mode will be selected through parameter P48 while the end time will be selected through
parameter P49. The pre-adjusted factory time is from 10:00 pm to 06:00 pm.

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6.2 Operation with room thermostat
The DUAL CLIMA heat pump incorporates a connection prepared for the installation of a room
chrono-thermostat or room thermostat (see "Room Thermostat Installation"), which will allow the
operation of the heat pump to be controlled depending on the temperature in the interior of the
home. Optionally, DOMUSA TEKNIK offers a wide range of such devices in its product catalogue.
Once the thermostat is installed in your home, select the desired temperature and operating
periods, if it is a chrono-thermostat (see the Room-Thermostat Manual). The heat pump will turn on
and activate the heating/cooling operation mode selected in it (AUTO, Heating or Cooling) until the
temperature set in the room thermostat is reached. When the desired temperature in the home is
reached, the heating and/or cooling service of the heating/cooling installation will be disabled,
shutting down the operation of the heat pump. The screen of the electronic controller will display
the icon, showing that the heat pump has been switched off by the room thermostat (Standby).
The operation with the room thermostat will not affect the DHW service, keeping it enabled
regardless of the status of the thermostat.
The installation of a room thermostat will optimise the installation’s performance, adapting the
heating and/or cooling to the requirements of your home and obtaining enhanced comfort.
Additionally, if the thermostat allows the operating hours to be programmed (chrono-thermostat),
it can adapt the installation to the hours of use of the installation.
6.3 Operation with a room sensor
The DUAL CLIMA heat pump incorporates a connection prepared for the installation of a room
temperature sensor (see "Room Sensor Installation"), through which the electronic controller will be
able to read the temperature in the interior of the home, allowing the management of the
installation of heating/cooling depending on the temperature of the interior of your home. The
room sensor is supplied as an optional accessory of the heat pump, except for the PACK items of
the aerothermal line, in which it will be supplied by default within the PACK.
Once the room sensor is installed in your home, select the desired room temperature, adjusting it in
parameter P29 of the Technical menu (see "Technical Menu"). In addition, the Heating temperature
and Cooling temperature of the heat pump (if any) should be adjusted (see "Temperature
Selection"). The heat pump will turn on and activate the heating/cooling operating mode selected
in it (AUTO, Heating or Cooling) until the set temperature is reached in the heat pump. In turn, the
circulation pump of the heating/cooling installation will be activated until the desired room
temperature is reached (set in parameter P29 of the Technical menu). When the desired room
temperature is reached in the home, the circulator pump of the heating/cooling installation will be
deactivated, delivering no heat or cold to the room.
The operation with the room sensor will not affect the DHW service (if any), keeping it enabled
regardless of the status of the thermostat.
The installation of a room sensor will optimise the installation’s performance, adapting the heating
and/or cooling to the requirements of your home and providing enhanced comfort features. In
addition, by means of the programming integrated into the heat pump, the service can be adapted
to the hours of use of the installation.

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7CLOCK AND TIMER SETTINGS
The DUAL CLIMA heat pump integrates a time and date display, through which some functions are
managed. It is thus essential to set the correct date and time when commissioning the heat pump. In
addition, this clock can be used to set the periods for turning on and off the desired operating modes
for each day of the week (weekly programming).
7.1 Time and day settings
To set the time and day of the week, press and the day of the week symbol will flash. Use
buttons to select the day of the week and press to confirm. Next, the hour digits will flash.
Use buttons to select the hour and press to confirm. Finally, the minute digits will flash.
Use buttons to select the minutes and press to confirm the selected value. The time
setting mode will close automatically.
 
7.2 Timer Settings
The DUAL CLIMA heat pump has a weekly timer function, through which the on and off periods
can be set, as well as the desired operating modes in each of them. In one day, 3 points can be set
for the activation (mode selection) and 3 points for the total shutdown of the pump. Points 1, 3and
5enable the desired operating mode. Points 2, 4and 6disable all operating modes that were
active at the programmed time.
The start and shutdown points may be adjusted independently from each other, i.e. it is not
necessary to adjust them in pairs (1 with 2, 3 with 4, etc.). Only the start points (1, 3 and 5) can be
adjusted in such a way that they change the operating mode each time the programmed time is
reached for each of them (e.g. point 1: 06:00h + , point 3: 21:00h , daytime activation in
Heating mode, keeping the DHW service active for 24 hours).
When the programmer is set, the programming symbol will appear permanently enabled ( ) on
the electronic controller screen, indicating that time programming is enabled. To restore the
manual operation and erase all settings of the time programmer, simultaneously press and holding
buttons + for 3 seconds. The programming symbol ( ) will be disabled on the screen.
To access the setting mode of the time programmer press and hold the button for 3 seconds.
The symbol will flash on the screen, as well as the and the start point 1for said day.

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Adjusting the start points (points 1, 3 and 5)
1.- After accessing the adjustment mode, use buttons to select
the day of the week to be programmed and press to confirm.
2.- The digit of the programming points will flash. Use buttons to
select the desired start point (1, 3 or 5) and press to confirm.
3.- The digits of the time will flash. Use buttons to select the
desired on time and press to confirm.
4. The digits of the minutes will flash. Use buttons to select the
minutes and press to confirm.
5.- The operating mode symbol will flash. Use buttons to
select the operating mode to be switched on and press to
confirm.
6.- The symbol will flash. Press to activate the adjusted start point.
The symbol will stop flashing and will remain still, indicating that
it is enabled.
7.- Once the start point is turned on, press to and repeat the process
from step 1 to adjust more points.
If you wish to deactivate a previously activated start point, select the point you wish to deactivate
(Step 2), press to advance through the adjustment mode until the fixed programming symbol
(Step 6) is displayed, and finally, press to disable the start point. The symbol will flash,
indicating that it is disabled. Press again to keep adjusting the programmer.
After adjusting all desired programming points, press to exit the adjustment mode.

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Adjusting the shutdown points (points 2, 4 and 6)
1.- After accessing the adjustment mode, use buttons to select
the day of the week to be programmed and press to confirm.
2.- The digit of the programming points will flash. Use buttons to
select the desired shutdown point (2, 4 or 6) and press to confirm.
3.- The digits of the time will flash. Use buttons to select the
desired off time and press to confirm.
4.- The digits of the minutes will flash. Use buttons to select the
minutes and press to confirm.
5.- The symbol will flash. Press to activate the adjusted shutdown
point. The symbol will stop flashing and will remain still,
indicating that it is enabled.
6.- Once the shutdown point is turned on, press to and repeat the
process from step 1 to adjust more points.
If you wish to deactivate a previously activated shutdown point, select the point you wish to
deactivate (Step 2), press to advance through the adjustment mode until the fixed
programming symbol (Step 5) is displayed, and finally, press to disable the shutdown point.
The symbol will flash, indicating that it is disabled. Press again to keep adjusting the
programmer.
After adjusting all desired programming points, press to exit the adjustment mode.
NOTE: Each time the timer reaches at a shutdown point (2, 4 and 6), all operating modes that
are active at that moment will be deactivated (total shutdown of the heat pump).

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8OPERATION ACCORDING TO OUTDOOR WEATHER CONDITIONS (AU)
This operating mode enables the electronic controller of the DUAL CLIMA heat pump to calculate the
heating temperature depending on the outdoor temperature conditions (OTC) at each particular time,
with optimal adjustment of the heating installation conditions for improved comfort in the home and
energy savings.
To activate this operation, select the value "AU" as the setpoint temperature of the Heating mode (see
"Temperature Selection"). The Heating temperature will be calculated automatically by the electronic
controller according to the temperature measured outside the home, according to the following
operating curves. The selection of the operating curve must be made by technically qualified
personnel. To configure the desired curve, parameters P45 and P46 of the Technical menu should be
adjusted.
Parameter P45
Use parameter P45 to adjust the offset,
horizontally shifting the curve in the graph.
The selectable value range is -10~15 ºC. The
default factory value is 0 ºC and, once the
parameter is selected on the Technical menu,
buttons can be used to increase or
decrease this value, respectively (see
"Technical Menu"). Once the desired value has
been selected, press button to save it.
Parameter P46
Parameter P46 will adjust the slope of the
curve and the maximum temperature of the
Heating mode. The selectable value range is
30~50 ºC. The default factory value is 45 ºC
and, once the parameter is selected on the
Technical menu, buttons can be used
to increase or decrease this value,
respectively (see "Technical Menu"). Once the
desired value has been selected, press
button to save it.
NOTE: An incorrect adjustment of these operating curves may cause the heating installation
not to generate the desired comfort in the home, failing to provide heating in extreme
weather conditions of cold and/or causing overheating in hot weather conditions.

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9INSTALLATION INSTRUCTIONS
9.1 Location
The heat pump must be installed exclusively outside the home and, where possible, in a completely
clear area. If a protection is needed around the appliance, it should have wide openings on the 4
sides and the installation separations indicated in the following figure must be respected. No
obstacle should prevent the circulation of air through the evaporator and at the fan outlet.
Minimum separations for the installation of a unit (mm).
Minimum separations for the installation of multiple units in the same location (mm).

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Consult with the user before choosing the location of the device. It should not be placed next to
sensitive walls, such as on the wall next to a bedroom. Make sure that the location of the heat pump
is not disruptive to neighbours (sound level, air currents generated, low temperature of the air
blown with risk of freezing plants in the path, etc.).
Choose a location that preferably has sunlight and is
protected from strong and cold winds. If the heat pump is
exposed to gusts of wind that make it possible to overturn it, it
should be supported by suitable guys, as indicated in the
figure.
The device must be sufficiently accessible for subsequent installation and maintenance work. Make
sure that the passage of the hydraulic and electrical connections to the interior of the house is
possible and comfortable. The spacing measures indicated in the figure above are those strictly
necessary to ensure correct operation of the device; however, sometimes, it will be essential to
provide more space for maintenance work.
The DUAL CLIMA heat pump is a device specially designed for outdoor installation. Nevertheless,
avoid installing it in a place where it may be exposed to significant water stains or spills (e.g. under
a faulty gutter, near gas outlets, etc.). Move the appliance away from heat sources and flammable
products.
In areas where abundant and copious snowfalls occur, special care must be taken to protect the
heat pump from possible obstructions due to accumulation of snow around it. The obstruction of
the air inlet and/or outlet of the machine due to the accumulation of snow may cause malfunction
of the unit and possible breakdowns. The heat pump must be raised at least 100 millimetres above
the maximum expected snow level. In turn, the roof should be protected from accumulation of
snow, by means of a roof projecting from the building or a similar structure.
9.2 Accessories Supplied
The following accessories are supplied in the interior of the DUAL CLIMA heat pump. Before
proceeding with the installation of the machine, make sure that you receive them and that they are
in good condition.
Documentation: Inside the machine, open the front door to find the
documentation bag, where all the manuals and documents necessary for the
use and installation of the heat pump are included.
Main board: It is supplied inside the machine and can be found by removing
the cover of the electronic boards. Before connecting the power supply to the
machine, the control panel should be installed inside the house.
Drain valve: It is supplied inside the machine, tied with a flange to one leg of
the compressor. This key must be installed in the drain socket on the back of
the heat pump before filling the water in the heating/cooling circuit (see
"Diagrams and Measurements").
4x Anti-vibration dampers: Four units are supplied in a bag stuck on the back
of the machine, next to the hydraulic outlets.