DOMUSA TEKNIK Fusion Hybrid Gas Condens User manual

INSTALLATION AND OPERATING INSTRUCTIONS
FUSION HYBRID GAS CONDENS

Thank you for choosing a DOMUSA TEKNIK heating boiler. You have
chosen the Fusion Hybrid Gas Condens model from the DOMUSA
TEKNIK product line. With a suitable hydraulic installation, this gas-
fired module will provide the ideal level of comfort for your home. You
will also be able to enjoy a balanced, economical supply of domestic
hotwater.
This document constitutes an essential part of the product and must
be delivered to the end user. Please carefully read the warnings and
advice contained in this manual, as they provide important
information regarding the safety of the installation, as well as use and
maintenance.
These boilers must be installed by qualified personnel only, in
accordance with the legislation in force and following the
manufacturer'sinstructions.
Start-up of these boilers and anymaintenance operations must only be
carried out by DOMUSA TEKNIK’s Authorised Technical Assistance
Services.
This device can be used by children aged 8 years and above and
people with reduced physical, sensory or mental abilities or without
experience and knowledge, provided that they have been given
appropriate supervision or training regarding the use of the device in a
safe manner and that they understand the dangers involved. Children
should not play with the device. Cleaning and maintenance should be
carried out by the user should not be carried out by children without
supervision.
Incorrect installation of these boilers could result in damage to people,
animals or property, and the manufacturer will hold no liability in such
cases.
DOMUSA TEKNIK, in compliance with item 1 of the first additional
provision of Act 11/1997, hereby informs that the person in charge of
delivering the container waste or used container, for its correct
environmental management, will be the final holder of the product
(Article 18.1 of Royal Decree 782/1998). At the end of its useful life, the
product must be taken to a selected collection point for electrical and
electronic equipment or must be returned to the distributor at the
time of purchasing a new equivalent appliance. For more detailed
information on the collection diagrams available, please contact either
the collection facilities of the local authority or the distributor where
thepurchasewasmade.

1
ÍNDICE Pág.
1 SAFETY WARNING..............................................................................................................................................................3
2LISTOFCOMPONENTS.....................................................................................................................................................6
3CONTROLCOMPONENTS................................................................................................................................................7
3.1DIGITALDISPLAY..................................................................................................................................................................................8
4INSTALLATIONINSTRUCTIONS.....................................................................................................................................9
4.1LOCATION.............................................................................................................................................................................................9
4.2HYDRAULIC INSTALLATION OF THE HEATING AND DHWCIRCUIT..................................................................................................10
4.3HYDRAULIC INSTALLATION OF A SUPPORT PUMP (C4)...................................................................................................................11
4.4GAS CIRCUIT CONNECTION................................................................................................................................................................12
4.5ELECTRICCONNECTIONS....................................................................................................................................................................12
4.6ASSEMBLYOF THE DHWPROBE.......................................................................................................................................................14
4.7ASSEMBLYAND CONNECTION OF THE CONTROL PANEL.................................................................................................................15
4.8CONFIGURING THEHEAT PUMP........................................................................................................................................................16
4.9COMBUSTION PRODUCT REMOVAL...................................................................................................................................................17
5COMBUSTIONPRODUCTREMOVAL......................................................................................................................... 19
5.1TYPE C53 DUAL HORIZONTAL FLOW REMOVAL AND INTAKE SYSTEMS...........................................................................................20
5.2TYPE C83 DUAL HORIZONTAL FLOW REMOVAL AND INTAKE SYSTEMS...........................................................................................21
5.3CHANGINGFROM DUAL DUCT FLUE GAS REMOVAL TO COAXIAL FLUEGAS REMOVAL.................................................................22
5.4TYPE C13 HORIZONTAL COAXIAL REMOVAL AND INTAKE SYSTEMS.................................................................................................23
5.5TYPE C33 VERTICAL COAXIAL REMOVAL AND INTAKE SYSTEMS.......................................................................................................24
6 STARTING UP THEBOILER............................................................................................................................................25
6.1PRIOR WARNINGS...............................................................................................................................................................................25
6.2FILLINGTHE DOMESTIC HOT WATERTANK........................................................................................................................................25
6.3FILLINGTHE HEATING CIRCUIT...........................................................................................................................................................25
6.4GAS CONNECTION..............................................................................................................................................................................25
6.5ELECTRICALCONNECTION..................................................................................................................................................................27
6.6START-UP............................................................................................................................................................................................27
6.7INSTALLATION HAND-OVER...............................................................................................................................................................28
7OPERATION........................................................................................................................................................................ 29
7.1SWITCHINGON THE MODULE............................................................................................................................................................29
7.2SELECTINGTHE MODULE SETPOINTTEMPERATURE .........................................................................................................................30
7.3OPERATING IN “AUTO”MODE............................................................................................................................................................30
7.4OPERATIONWITH THE DHWSELECTOR
(27) ...................................................................................................................................31
7.5OPERATIONWITH THE HEATING SELECTOR
(28) .............................................................................................................................31
7.6OPERATIONWITH ROOM THERMOSTAT............................................................................................................................................32
8MENÚINFO........................................................................................................................................................................33
8.1ACCESS TO
"M ENU I NFO ....................................................................................................................................................................33
8.2“
M ENU I NFO ” PARAMETERS ..............................................................................................................................................................34
9TECHNICALMENU........................................................................................................................................................... 35
9.1ACCESS TOTHE “
T ECHNICAL M ENU ” ................................................................................................................................................35
9.2
"T ECHNICAL M ENU " PARAMETERS...................................................................................................................................................36
10 HEATING CIRCUIT ADJUSTMENTS..........................................................................................................................38
10.1HEATINGPOWER ADJUSTMENT:.....................................................................................................................................................38
10.2ADJUSTMENT OF THE MAXIMUM MODULE SETPOINTTEMPERATURE..........................................................................................38
10.3CIRCULATING PUMP FUNCTIONING ................................................................................................................................................38
10.4LOW TEMPERATURE OPERATION.....................................................................................................................................................38
11DHWCIRCUITADJUSTMENTS..................................................................................................................................38
11.1DHWPOWER ADJUSTMENT............................................................................................................................................................38
12ADDITIONALFUNCTIONS.......................................................................................................................................... 39
12.1BURNER ANTI-CYCLING FUNCTIONING...........................................................................................................................................39
12.2PUMP ANTI-BLOCK FUNCTION ........................................................................................................................................................39
12.3ANTI-FROST FUNCTION....................................................................................................................................................................39

Fusion Hybrid Gas Condens
2
12.4CHILD PROTECTION..........................................................................................................................................................................39
12.5MODULE PRESSURESENSOR FUNCTION.........................................................................................................................................39
12.6AIR PURGE FUNCTION......................................................................................................................................................................40
12.7SERVICEMODE.................................................................................................................................................................................41
12.8CONNECTING THE ROOM THERMOSTAT (“AUTO”MODE)...........................................................................................................42
12.9RESET DEFAULT VALUES OF FAN PARAMETERS..............................................................................................................................46
13 SHUTTING DOWN THEMODULE............................................................................................................................. 48
14DRAININGTHEMODULE............................................................................................................................................49
15SAFETYINTERLOCKS.................................................................................................................................................... 50
15.1TEMPERATURE SAFETY INTERLOCK .................................................................................................................................................50
15.2BURNER INTERLOCK.........................................................................................................................................................................50
15.3LOW PRESSURE INTERLOCK .............................................................................................................................................................50
16MODULEMAINTENANCE........................................................................................................................................... 51
17COMBUSTIONADJUSTMENT.................................................................................................................................... 53
17.1MEASUREMENT VALUES ..................................................................................................................................................................53
17.2ADJUSTMENT PROCESS....................................................................................................................................................................54
18 ADAPTING THE BOILER TO OTHERGASTYPES.................................................................................................. 56
19ELECTRODE POSITION................................................................................................................................................57
20CIRCULATINGPUMPFLOWCURVESFORHEATING.........................................................................................58
20.1OPERATING STATUS OF THE CIRCULATION PUMP..........................................................................................................................58
21DIAGRAMSANDMEASUREMENTS.........................................................................................................................59
22TECHNICALCHARACTERISTICS................................................................................................................................ 60
23ELECRICALDIAGRAM..................................................................................................................................................62
24ALARMCODES...............................................................................................................................................................64
25LISTOFSPARE PARTS.................................................................................................................................................. 66

3
1SAFETYWARNING
1.1 Safetysymbols
All safety messages indicate a potential risk of breakdown or damage. Follow the instructions
carefully to prevent accident or damage.
DANGER
This symbol warns of operations or situations involving imminent danger and which could
causeseveredamageorevendeath if they are not avoided.
WARNING
This symbol is for warnings that must be taken into account for correct use of the appliance
and to prevent malfunctioning that could give rise to hazardous situations for the appliance
itself and for persons.
CAUTION
This symbol warns of operations or situations involving imminent danger which could cause
slightormoderatedamageif they are not avoided.
1.2 Othersymbols
The following symbols are used in the instructions to draw your attention to important
information.
This indicates a risk of damage due to breakdown and damage to persons and/or
property.
This indicates important additional information connected with correct module
functioning.
1.3 Safety warnings
DANGER
A gas leak could give rise to explosion with serious consequences, causing material and personal
damage.Ifyousmellgas::
Do not smokein the hazard area. Donotlightanyflamesor sparks.
Donotturnonanyswitchesorelectricalappliances.
Opendoorsandwindows.
Turn off the main gas valve.
Switchofftheheating.
Keepallpersons away from the hazard area.
Follow the safety instructions provided by your gas supplier. These are posted beside the gas
meter.
Notify your gas supplier.

Fusion Hybrid Gas Condens
4
DANGER
Breathing in combustion gases(flue gases) can cause seriousdamage to health bypoisoning.
Switchofftheheating.
Ventilatetheroom.
Close all doors toprevent the gas from reaching other rooms.
Donotswitchonanyswitchesorelectricalappliances.
CAUTION
While working on the heating system
Make sure the module has been disconnected from the mains supply. To do this, you may
separate or remove the fuses or cut off the mains supply, firstly checking that the module is not
stillswitchedon.
Cutoffthegasflowandmakesureit is not restored until you give authorisation.
Forpropaneboilers
Before installing the boiler, you must be sure that the gas tank has been drained. As a rule, the
propane supplier is responsible for suitably draining the air from the tank. You may have
problems switching on the boiler if the tank has not been suitably drained. In such cases, firstly
contactthepersonresponsibleforfillingthetank.

5
1.4 Generalinstallationguidelines
DOMUSA TEKNIK ensures that this product contains no harmful substances and that no harmful
materialshavebeenused in itsmanufacture.
Please carefully read this instruction manual and keep it in a safe, easily-accessible place.
DOMUSA TEKNIK shall not be held liable for any damage that may occur due to failure to follow
theseinstructions.
The Fusion Hybrid Gas Condens module can only be installed in combination with a heat pump
from the DUAL CLIMA line from DOMUSA TEKNIK. The FUSION module, in combination with a
DUAL CLIMA heat pump, is suitable for use in both heating and cooling installations, and can be
combined with fan coils, underfloor heating/cooling and low-temperature radiators. It should be
connected to a heating/cooling system and to a hot water distribution network that is
compatiblewithitsperformanceandpower.
This appliance should 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
improperuse.
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 specifically designed 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
DOMUSATEKNIK.
Current legislation must be taken into account on installing this appliance, and it must be
installedinaplacewithsuitableventilation.
The module must be installed by an installer authorised by the Ministry of Industry and it must
be startedup by anOfficial TechnicalAssistance Serviceauthorised by DOMUSATEKNIK..
Themodulemustbeinstalledconsideringtherequirementsdemandedateachinstallationsite:
TheGasInstallationRegulation.
TheTechnicalBuildingCode.
TheRegulationforHeatingInstallationsinBuildings.
TheLowVoltageRegulation.
The Codes of good practice andregulations refertothelatestversions of the same.

Fusion Hybrid Gas Condens
6
2LIST OF COMPONENTS
2
1
4
5
7
3
6
8
9
10
13
14
15
16
17
19
18
11
12
1.Fluegasoutlet
2.Combustionchamber
3. Primary manometer
4.Condensatesiphon
5.3wayvalve(G1)
6.3wayvalve(E1)
7.StainlesssteelDHWtank
8.DHWexpansionvessel
9.Heatingexpansionvessel
10. Air inlet
11. Fan
12.Gasvalve
13.Pump
14.3wayvalve(G1´)
15.DHWsafetyvalve
16.Fillingdisconnector
17.Drainvalve
18. Safety valve
19. Primary drain valve.

7
3CONTROLCOMPONENTS
20. Digital display
This is the main boiler functioning display,
on which all the operating information,
settings and values appear.
21. MODE button
This button selects between the different
operating modes. It is also used to disable
thehotwaterfunction.
22. Buttonforincreasingtheboiler
temperature setpoint ( )
It is used to increase the desired boiler
temperature.
23. Button for reducing the boiler
temperature setpoint ( )
It is used to decrease the desired boiler
temperature.
24. RESETbutton
When the boiler is in lock-out mode, the
RESET button is pressed to reset the lock-
out and restore "Standard" operation. When
modifying any of the parameters, press the
RESET button to complete the screen cycle
andsavethechanges.
25. Navigationincreasebutton( )
It is used to navigate through the different
menus.
26. Navigationdecreasebutton( )
It is used to navigate through the different
menus.
27. DHWoperatingmodeselector( )
With it, it is possible to select the Domestic
HotWateroperatingmode.
28. Heatingoperationmodeselector( )
With it, it is possible to select the heating
operation mod.

Fusion Hybrid Gas Condens
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3.1 Digitaldisplay
The Fusión Hybrid Gas Condens module is electronic and has a display for viewing the different
settings. The display has various display areas where different icons and numbers appear to
indicatethedifferentstatusesofthemodule.
29. Flamedisplay
Shows the flame detection and the power at
whichtheboilerisoperating.
30. Module temperature
Itdisplaysthemoduletemperature.
31. Heatingmodeoperationdisplay
It indicates that the heating mode is
activated.
32. Heatingdemanddisplay
Itflasheswhenthereisheatingdemand.
33. Comfortmodeoperationdisplay
It indicates that the comfort mode is
activated.
34. Resetrequestdisplay
It is displayed when the boiler needs to be
reset.
35. Digitalmanometer
Itdisplaystheheatingcircuitpressure.
36. Errordisplay
It is displayed when an error occurs in the
boiler.
37. Testmodeoperationdisplay
Itindicatesthatthetestmodeisactivated.
38. DHWdemanddisplay
ItflasheswhenthereisDHWdemand.

9
4INSTALLATIONINSTRUCTIONS
The Fusion Hybrid Gas Condens module can only be installed in combination with a heat pump from
the DUAL CLIMA line, supplied by DOMUSA TEKNIK. Therefore, for its operation, these devices should
be connected to each other, both hydraulically and electrically. In this section, the necessary
operations for said connection aredescribed in detail.
The module must be installed by personnel auhtorised by the MInistry of Industry, in compliance with
the applicable laws and regulations. In general, these laws and regulations are the "Basic Gas
Installation Standards", the "Heating, Air Conditioning and Domestic Water Installation Regulation"
andallotherlocalregulations.
The module is suitable for heating water to a temperature below boiling point at atmospheric
pressure. It must be connected to a heating installation and/or a domestic hot water distribution
network, which must always becompatible with its performance and power.
This appliance should 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 byunsuitable,erroneousorunreasonableuse.
Remove all the packaging and check that the contents are complete. In case of doubt, do not use the
boiler. Contact your supplier. Keep the packaging elements out of reach of children, as they can be
dangerous.
When youno longer wish touse the module,disable theparts that could represent a potential hazard.
4.1 Location
The module must be located in a sufficiently ventilated area, with openings directly onto the
outside of the building (as required in the Gas Installations Regulation). It must be located so that
the air grilles on the premises are not obstructed and normal boiler maintenance is possible even if
itisplacedbetweenitemsoffurniture.
DANGER
It is not necessary to keep a distance between the appliance and objects made of combustible
materials, since the temperature of the device cannot exceed the maximum permissible flow
temperature in heating modeif the device operates with its nominal heat output.
Anyway, it is recommended not to install it near papers, newspapers, magazines or any flammable
object.
Donotinstallthemodulenearhouseholdwaste.
Avoidusingexplosiveandeasilyflammablesubstancesintheroom

Fusion Hybrid Gas Condens
10
4.2 Hydraulic installation of theheatingandDHWcircuit.
The hydraulic installation should be carried out by qualified personnel, in compliance with the
currentinstallationregulation(RITE)andconsideringthefollowingrecommendations:
- The inside of the installation piping should be thoroughly cleaned before switching on the
boiler.
- We recommend inserting cut-off valves between the installation piping and the appliance to
simplifymaintenancetasks.
- If the module is installed at a lower height than the heating installation, it is advisable to create
a siphon at the boiler outlet, to prevent the installation from heating up due to natural
convectionwhenheatingisnotrequired.
-WhentheDHWsupplypressureisover0.7MPa (7bar),apressurereducermustbefitted.
- It is advisable to install a thermostatic mixing valve at the DHW outlet to protect against burns
andtoguaranteeaconstant,stable supplyofhotwater.
- The condensation pipe must lead to a drain outlet, as the Fusion Hybrid Gas Condens
module is a gas condensation module, and a large amount of water may be generated. In
addition, before starting up the boiler, it is advisable to fill the condensation outlet siphon tube
with water, so thatthe flue gases do not exit through this tube.
- All water circuit piping MUST be insulated to prevent condensation during operation in
cooling mode and reduction of cooling and heating capacity, as well as to prevent freezing of
outside pipes during winter. The minimum insulation thickness of the pipes should be 19 mm
(0.039 W/mK), preferably comprising a closed cell insulation or a vapor barrier. In outdoor areas
exposed to the sun, the insulation must be protected from the effects of degradation.
- Drain valves and suitable devices should be fitted for the correct removal of air from the circuit
duringthefillingstage.
- A water filter must be installed in the water circuit of the heat pump, in order to avoid
obstructions or narrowing caused by dirt in the installation. The filter MUST be installed before
filling the installation with water and in the return branch of the machine, in order to avoid the
entry of dirty water into the heat exchanger (condenser). It is advisable to insert this filter
between two cutting keys, in order to avoid emptying the installation during cleaning. The
type of filter installed must be adapted to the particular characteristics of each installation
(type and material of the water pipes, type of water used, water volume of the installation, etc.).
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.
- The Fusion Hybrid Gas Condens hydraulic module is an accessory that should be installed in
combination with a DUAL CLIMA heat pump for its correct operation. Therefore, in addition to
the recommendations described above, it must comply with those indicated in the heat pump
installation manual.
For the correct operation of the heat pump, it is essential to install a filter in the
return line of the heat pump. This filter is included in the documentation bag of the
FusionHybrid Oilmodule.

11
4.3 Hydraulic installation of a support pump (C4)
The Fusion Hybrid Gas Condens hydraulic module allows the installation of a circulation pump to
increase the water flow rate of the machine where necessary, in addition to that obtained by its
internal pump. This circulation pump will operate in parallel with the internal pump of the C4
machine.Toinstallthissupportpump,pleasecarefullyfollowtheinstructionsbelows:
-First,remove thesupport pump shim and its insulator.
. - In the place of the support pump shim (3), the support pump must be installed in the
directionindicatedinthefigure.
If the Fusion Hybrid Gas Condens module is used in the cooling mode in
addition to heating, it is essential to insulate the pump correctly, in order to avoid condensation
duringcoolingmodeoperation.

Fusion Hybrid Gas Condens
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4.4 Gascircuitconnection
For the installation of any type of gas, the installer must be authorised by the Ministry of Industry
andstrictlyfollowtheapplicableGasRegulations.
The gas connection must be made using a rigid pipe with a shut-off valve. The gas pipe diameter is
not determined by the boiler connection. It should be calculated in accordance with its length and
consequentlyitspressuredrop.
Lastly,itmustbecheckedthatitcorrectly sealed against any gas leaks.
4.5 Electricconnections
The module is equipped for connection at 230 V, 50 Hz to terminals 1 and 2 of terminal strip J1 (see
" ElectricalConnection Diagram "). Makesurethattheapplianceisgrounded.
In addition, for the correct operation of the Fusion Hybrid Gas Condens, it is also necessary to
connect the heat pump to the power supply as indicated in the section “
Connection to the general
powersupply
”oftheDUAL CLIMA heat pumpmanual.
DANGER
When handling the electrical installation, make sure that both the module and the Dual Clima
heatpumparedisconnectedfromthemains.
The Fusion Hybrid Gas Condens module features a series of motorised diverting valves and DHW
and Heating support activation signals that are sensed by the DUAL CLIMA heat pump. To do this,
electrical cables with a minimum section of 0.5 mm2must be passed from the terminal strip of the
DUAL CLIMA heat pump to the inside of the Fusion Hybrid Gas Condens module. The module has
a series of cable glands at the rear, through which it is possible to insert these cables into the
equipment.
The electrical connection of these signals will be carried out between the general terminal strip of
the heat pump and the terminal strip of the module, by opening the door and removing the front
cover of the internal control panel to access it. The following figure describes how to connect all
the signals necessary for correct operation.
First, it is necessary to remove the jumpers in the room thermostat connection of the DUAL CLIMA
heatpump.
E1 L E2L E2N C4L NC6L LG1S
G3S HCO M
NC
E1N
Once the jumpers have been removed, all the connections specified in the following diagram must
be made.

13
DANGER
When handling the electrical installation, make sure that both the module and the Dual Clima
heatpumparedisconnectedfromthemains.
For the electrical connection of the support circulation pump C4 (optional), first two wires must be
connected in parallel with the heat pump circulation pump between terminals C4L and N of the
DUAL CLIMA heat pump. These cables will be connected to the same terminals (see figure). Then,
these cables must be connected from the terminal strip of the DUAL CLIMA heat pump to the
inside of the Fusion Hybrid Gas Condens module on terminals 28 and 29. Finally, the support
circulation pump C4 will be connected to terminals 26 and 27 of the module terminal block (see
"Electrical diagram")

Fusion Hybrid Gas Condens
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4.6 AssemblyoftheDHWprobe
For the correct operation of the Fusion Hybrid Gas Conden hydraulic module, the DHW probe,
supplied in the DUAL CLIMA heat pump, must be inserted in the bulb sheath provided in the
module tank. This probe is located inside the machine and is identified as “DHW TANK SENSOR”.
For correct assembly, the probe must be inserted into the bulb sheath provided, following the
stepsindicatedbelow:
1.- Access the module and remove the access cover to the tank sheath, unscrewing the
coverfixingnut.
2.- Insert the sensor into the bulb sheath provided in the tank. Be sure to insert the sensor
bulbuntilitstopsagainstthebottomofthebulb sheath.
3.- Reassemble the access cover to the tank,screwing the fixingnut.
4.- Connect the probe to the electrical connection strip on terminals 21 and 22. (see
“ElectricalDiagram” ”).
DANGER
When handling the electrical installation, make sure that both the module and the Dual Clima
heatpumparedisconnectedfromthemains.

15
4.7 Assemblyandconnectionof the control panel
The control panel is supplied inside the heat pump and must be mounted on the front of the
Fusion Hybrid Gas Condens hydraulic module. To do this, open the module door and access the
control pannel holder located in the rear part. For its correct assembly, please carefully follow the
followingsteps:
1.- Open the door of the Fusion Hybrid Gas Condens module
and loosen the butterfly nuts located on the back of the
doorasindicatedinthefigure
2.- Remove the support cap from the control panel, moving it
upwards.
3.- Removetheprotectivefoaminsert.
4.- Place the control panel removed from the DUAL CLIMA
heatpumpinitsplace.
5.- Reassemble the control panel cover, inserting it into the
wingnuts,movingitdownwards.
6.- Tighten the wing nuts to attach the handle to the drawer
unit.

Fusion Hybrid Gas Condens
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Before switching on the heat pump, the control panel must be connected to the external machine.
To do this, pass the cable that is supplied inside the heat pump (located alongside the probe
harness) to the interior of the Fusion Hybrid Gas Condens module. The hydraulic module has a
series of cable glands at therear, through which it is possible to insert such cablesintothemodule.
Finally, the connectors of the cable and the control panel should be connected at their ends. A
cable with sufficient length should be provided inside the module, in such a manner that it is
possible to open the front of the equipment without having to disconnect said cable and facilitate
anymaintenanceoperationinside.
The cable supplied with the heat pump is 5 metres long. Where necessary, it can be extended up to
amaximumdistanceof100metres(sectionbetween0.5÷1.25mm2).
DANGER
When carrying out any work on the electrical installation, always make sure that both the
moduleandtheDualClimaheatpumpare disconnected from the mains.
: Provide a sufficient length of cable inside the module in order to facilitate the
openingofthefront.
4.8 ConfiguringtheHeatPump
To properly configure and manage the operation of the DUAL CLIMA heat pump, please carefully read
the “Installation and OperatingInstructions Manual” supplied alongside the DUAL CLIMA heatpump.
Nevertheless, in order to obtain all the features for which the supporting module has been provided, it
should be ensured at least that the DHW service and the Heating and/or Cooling service are activated
byadjusting the DIP-Switch(SW1) of the controlpaneloftheheatpump.
In addition, for the correct management of the DUAL CLIMA heat pump with the support module, it
will be essential to set the value 3 through parameter P27 of the Technical menu of the DUAL CLIMA
heatpumpandvalue0throughparameterP26of the Technical menu of the DUALCLIMA.

17
4.9 Combustionproductremoval
The combustion product exhaust ducts must be installed by qualified personnel and must comply
withcurrentlegislationandstandards.
The Fusion Hybrid Gas Condens module is a sealed oil-fired boiler, and the combustion products
are therefore removed through an outlet pipe, with a separate air intake from outside. We
recommend that the position of the outside exhaustion duct is as shown in the figures and in the
tablebelow:
Gasremovalterminalposition Minimumdistance
(cm)
A From openings (e.g.doors, windows, ventilation grilles) 60(*)
B Underacorniceordrainpipes 30
C Underagutter 30(**)
D Underabalcony 30
E Fromverticalorhorizontalpipes 30(**)
F From internal and external cornersofthebuilding 30
G Fromtheground,roof orbalconies 250
H Fromthesideoppositeto a marquee (whennootheroutlet is installed) 60
I From the wallwith the pipe to the frontwall 120
J Fromopenings(e.g. doors, windows) undertheroof 120
K Betweentwoverticalducts 150
l Betweentwohorizontalducts 100
M Fromanadjacentverticalduct 50
N Fromafrontsurface withopenings 200
(*) The end of the removal duct must be at least 40 cmfrom any opening in the façade.
(**) If the pipe ismade of materials sensitive to the action of the combustion gases,this distance should be at least 50 cm.

Fusion Hybrid Gas Condens
18
CAUTION
The terminal must be fitted with suitable protection if it is less than 2 metres from a balcony, on a
flatrooforsurfacethatcouldbeaccessedbypeople.
The wall the gas removal and air intake ducts are fixed to must not be made of combustible or
flammable materials, and the wall the end of the duct passes through must lead to the outside of
thehome.Theremustbenohazardousmaterials orobstructionsneartheduct.
If the outlet passes through a wall made of combustible material the end terminal must be covered
with at least 20 mm of incombustible material and must be at a distance of at least 50 mm from any
flammable material.
Thepartsconnecting the flue gas outlet must be correctly joined using sealing gaskets. Check there
are no leaks from any part of the removal circuit.
Switch off the boiler and wait for the pipes to cool down before cleaning the gas removal and air
intakeducts.
Thegasremoval and air intake ducts mustbeprotectedfromsnowaccumulation.
: All accessories used for combustion product removal and air intake should be
thosesuppliedbyDOMUSATEKNIK.
However,itisalsopossible fortype C63 evacuations, to use other manufacturers accessories for air
inlet andgas evacuation, as longas they are duly certified with their corresponding CE marking and
are suitable for boiler working conditions.
: There must be taken into account the regulations of each country in the field of
construction and installations for the assembly and commissioning of the
heatinginstallation.
Forthecorrectinstallationofaccessoriesforairinletandgasevacuationof other manufacturers
(typeC63)thefollowinginformation must be taken intoaccount:
- It is advisable to fit the removal pipe in a slightly upwardly-inclined direction, at around 2-3º, thus
preventinganywaterandcondensationfromdrippingout.
-Thesurface temperature inthecombustion air ductisbelow85°C
- The air intakemust not be located on a wall oppositeafluegasextractionsystem,asitcould take
inthegasesemitted.