DOMUSA TEKNIK EVOLUTION SOLAR HFD User manual

INSTALLATION AND OPERATING INSTRUCTIONS
EVOLUTION SOLAR HFD
ER-0170/1996
CGM-04/392

Thank you for choosing a DOMUSA TEKNIK heating boiler. From the
range of DOMUSA TEKNIK products you have chosen the Evolution
Solar HFD model. With a suitable hydraulic installation, this oil-fired
boiler will provide the ideal level of comfort for your home. If you have
chosen the Mix-Duo or Cal models from the Sirena V e range, you will
also be able to enjoy a balanced, economical domestic hot water
supply.
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,
useandmaintenanceoftheinstallation.
These boilers are to be installed by skilled personnel only, in
accordance with the legislation in force and following the
manufacturer’sinstructions.
The start-up of these boilers and any maintenance operations must
only be carried out by DOMUSA TEKNIK’s Authorised Technical
AssistanceServices.
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 informs all parties concerned that, in compliance
with section 1 of the first additional provision of Law 11/1997, the
responsibility for delivering packaging waste or used packaging for its
proper environmental management will be that of the final owner of
the product (Article 18.1 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 schemes available, contact
either the collection facilities of the local authority or the distributor
wherethepurchasewasmade.

1
CONTENTS Page
1 COMPONENTS DIAGRAM.....................................................................................................................................................................................................................................................................2
2 CONTROL COMPONENTS.....................................................................................................................................................................................................................................................................3
3 INSTALLATION INSTRUCTIONS..........................................................................................................................................................................................................................................................4
3.1LOCATION..................................................................................................................................................................................................................................................................................................4
3.2HYDRAULIC INSTALLATION OF THE HEATING AND DHWCIRCUIT..........................................................................................................................................................................................................4
3.3FUELINSTALLATION...................................................................................................................................................................................................................................................................................4
3.4ELECTRICALCONNECTION ........................................................................................................................................................................................................................................................................5
3.5INSTALLING HEATING CIRCUIT 2(OPTIONAL)...........................................................................................................................................................................................................................................5
3.6INSTALLING THE SOLAR CIRCUIT................................................................................................................................................................................................................................................................6
3.7LOCATIONOFTHESOLAR COLLECTOR......................................................................................................................................................................................................................................................7
3.8COMBUSTION PRODUCT EVACUATION .....................................................................................................................................................................................................................................................8
4 COMBUSTION PRODUCT EVACUATION..........................................................................................................................................................................................................................................9
4.1Ø80DUAL DUCT SYSTEM FOR COMBUSTION PRODUCT EVACUATION AND AIR INTAKE (TYPEC53).......................................................................................................................................................9
4.2CHANGING FROM DUAL DUCT FUME REMOVAL TO COAXIAL FUME REMOVAL......................................................................................................................................................................................10
4.3Ø80-125CONCENTRIC HORIZONTAL DUCT FOR COMBUSTION PRODUCT EVACUATION AND AIR INTAKE (TYPE C13)......................................................................................................................11
4.4Ø80-125CONCENTRIC VERTICAL DUCT FOR COMBUSTION PRODUCT EVACUATION AND AIR INTAKE (TYPE C33)............................................................................................................................12
5 STARTING UP THE BOILER..................................................................................................................................................................................................................................................................13
5.1PRIOR WARNINGS ....................................................................................................................................................................................................................................................................................13
5.2FILLING THE THE HEATING CIRCUIT .........................................................................................................................................................................................................................................................13
5.3START-UP.................................................................................................................................................................................................................................................................................................13
5.4DELIVERY OF THE INSTALLATION.............................................................................................................................................................................................................................................................13
5.5FILLING THE SOLAR CIRCUIT ....................................................................................................................................................................................................................................................................14
5.6SOLAR PUMP FUNCTIONING IN MANUAL MODE.....................................................................................................................................................................................................................................14
5.7STARTING UP THE SOLAR PUMP WITH TIMER ..........................................................................................................................................................................................................................................15
5.8CHECKING THE SOLAR CIRCUIT SEAL.......................................................................................................................................................................................................................................................15
5.9ADJUSTING THE SOLAR CIRCUIT FLOW....................................................................................................................................................................................................................................................16
6 SHUTTING DOWN THE BOILER.........................................................................................................................................................................................................................................................17
7 DRAINING THE BOILER........................................................................................................................................................................................................................................................................17
8 DRAINING THE SOLAR CIRCUIT........................................................................................................................................................................................................................................................17
9 DIGITAL DISPLAY:.................................................................................................................................................................................................................................................................................18
10 TEMPERATURE SELECTION .............................................................................................................................................................................................................................................................20
10.1SELECTING THE BOILER SETPOINT TEMPERATURE.................................................................................................................................................................................................................................20
10.2SELECTING THE BACK-UP DHWSETPOINTTEMPERATURE..................................................................................................................................................................................................................20
10.3SELECTING THE DHWSETPOINT TEMPERATURE IN THE SOLAR HOT WATER TANK.............................................................................................................................................................................21
10.4SELECTING THE UNDERFLOOR HEATING FLOW SETPOINT TEMPERATURE (WITH SRSC2/EVKIT OPTION)........................................................................................................................................21
11 OPERATION ..........................................................................................................................................................................................................................................................................................22
11.1SOLAR CIRCUIT FUNCTIONING..............................................................................................................................................................................................................................................................22
11.2HEATING FUNCTION .............................................................................................................................................................................................................................................................................23
11.3INSTANTANEOUS DOMESTICHOT WATER PRODUCTION FUNCTION....................................................................................................................................................................................................23
11.4HEATING CIRCUIT 2FUNCTIONING(OPTIONAL)...................................................................................................................................................................................................................................24
11.5FUNCTIONING WITH ANSRS2/EVUNDERFLOOR HEATING KIT (OPTIONAL) ...................................................................................................................................................................................24
12 ADDITIONAL FUNCTIONS................................................................................................................................................................................................................................................................25
12.1PUMP ANTI-BLOCK FUNCTION..............................................................................................................................................................................................................................................................25
12.2ANTI-FROST FUNCTION.........................................................................................................................................................................................................................................................................25
12.3BOILER PRESSURE SENSOR FUNCTION ..................................................................................................................................................................................................................................................25
12.4ROOM THERMOSTAT CONNECTION ......................................................................................................................................................................................................................................................25
12.5TELEPHONE RELAY CONNECTION..........................................................................................................................................................................................................................................................26
12.6DISCONNECTING THE SOLAR CIRCUIT...................................................................................................................................................................................................................................................26
12.7DISCONNECTING THE OIL-FIRED BOILER’S BACK-UP ENERGY SUPPLY .................................................................................................................................................................................................26
12.8KEYPAD BLOCK FUNCTION....................................................................................................................................................................................................................................................................26
13 E20 REMOTE CONTROL (OPTIONAL)...........................................................................................................................................................................................................................................27
13.1FUNCTIONING WITHOUT ANOUTDOOR SENSOR..................................................................................................................................................................................................................................27
13.2FUNCTIONING WITH AN OUTDOOR SENSOR (OPTIONAL)....................................................................................................................................................................................................................28
13.3FUNCTIONING IN HOTWATER MODE....................................................................................................................................................................................................................................................28
13.4TELEPHONE RELAYFUNCTION ..............................................................................................................................................................................................................................................................28
14 SAFETY CUT-OUTS.............................................................................................................................................................................................................................................................................29
14.1TEMPERATURE SAFETY CUT-OUT..........................................................................................................................................................................................................................................................29
14.2BURNER CUT-OUT .................................................................................................................................................................................................................................................................................29
14.3LOW PRESSURE CUT-OUT......................................................................................................................................................................................................................................................................29
15 BOILER MAINTENANCE.....................................................................................................................................................................................................................................................................30
16 HEATING CIRCULATION PUMP FLOW CURVES........................................................................................................................................................................................................................32
16.1CHARACTERISTIC CURVES OF THE PUMP...............................................................................................................................................................................................................................................32
16.2REGULATION OF THE CIRCULATION PUMP............................................................................................................................................................................................................................................32
16.3PRESSURE DROP....................................................................................................................................................................................................................................................................................32
17 DIAGRAMS AND MEASUREMENTS...............................................................................................................................................................................................................................................33
17.1EVOLUTION SOLAR 30HFD.................................................................................................................................................................................................................................................................33
17.2EVOLUTION SOLAR 40HFD................................................................................................................................................................................................................................................................34
17.3EVOLUTION SOLAR 30/40HFDWITH SRS2/EVUNDERFLOOR HEATING KIT...................................................................................................................................................................................35
18 TECHNICAL CHARACTERISTICS.....................................................................................................................................................................................................................................................36
19 CONNECTION DIAGRAM..................................................................................................................................................................................................................................................................37
19.1EVOLUTION SOLAR................................................................................................................................................................................................................................................................................37
19.2EVOLUTION SOLAR WITH SRS2/EVUNDERFLOOR HEATING KIT.........................................................................................................................................................................................................38
20 ELECTRICAL CONNECTION..............................................................................................................................................................................................................................................................39
20.1EVOLUTION SOLAR................................................................................................................................................................................................................................................................................39
20.2EVOLUTION SOLAR WITH SRS2/EVUNDERFLOOR HEATING KIT.........................................................................................................................................................................................................40
21 ALARM CODES.....................................................................................................................................................................................................................................................................................41
22 BURNER..................................................................................................................................................................................................................................................................................................42
22.1ASSEMBLY .............................................................................................................................................................................................................................................................................................42
22.2BURNER START-UP ................................................................................................................................................................................................................................................................................42
22.3ADJUSTING THE COMBUSTION CONDITIONS........................................................................................................................................................................................................................................42
22.4OIL PRESSURE ADJUSTMENT.................................................................................................................................................................................................................................................................44
22.5OIL SUPPLY PIPING DIAGRAMS..............................................................................................................................................................................................................................................................44
22.6TECHNICAL SPECIFICATIONS.................................................................................................................................................................................................................................................................44
22.7OPERATING CURVES..............................................................................................................................................................................................................................................................................45
22.8NOZZLES ...............................................................................................................................................................................................................................................................................................45
22.9ELECTRICAL CONNECTION DIAGRAM....................................................................................................................................................................................................................................................46
22.10QUICK CONNECTOR............................................................................................................................................................................................................................................................................46
22.11BURNER CONTROL OPERATINGSEQUENCE ........................................................................................................................................................................................................................................47
23 FAILURES...............................................................................................................................................................................................................................................................................................48
24 SPARE PARTS LIST..............................................................................................................................................................................................................................................................................50
25 GUARANTEE CONDITIONS..............................................................................................................................................................................................................................................................53

Evolution Solar HFD
2
1COMPONENTSDIAGRAM
2
1
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
6
19
20
21
22
23
1.Domesticsealed burner.
2.Heatingpump.
3.Domestichot water pump.
4.Heatingsafety valve.
5.Solardrain valve.
6.Automaticair bleed valve.
7.Heatingexpansion vessel.
8.Solarcircuit level socket.
9.Waterpressure sensor.
10.Solarcircuit filling gauge.
11.Domestichot water expansion vessel.
12.Flowswitch.
13.Domestichot water safety unit.
14.Safetyunit siphon.
15.Stainlesssteel solar storage tank.
16.Solarcircuit flow regulator.
17.Solarpump.
18.Stainlesssteel condenser.
19.Solarcircuit safety valve.
20.Heatingfill valve.
21.Domestichot water heat exchanger.
22.Solardeflector valve.
23.Heatingcircuit drain valve.

3
2CONTROLCOMPONENTS
25 27 2826 29
24
31 30
24. Digital display:
This is the boiler functioning display, on which
all the operating information, settings and
values appear. In standard operating mode
(default display), the actual boiler temperature
is shown. If any malfunctioning should occur,
the corresponding alarm code will appear on
thedigitaldisplay.
25. Boiler temperature touch button:
This is used to select the boiler setpoint
temperature. If oFF is selected, the heating
function is disabled. To select the desired
temperature, simply place your finger on the
"+" or "-" symbols on the touch button to
increase or decrease the desired boiler
temperature.
26. MODE touch button:
When this button is touched the different
boiler temperatures appear on the digital
display.
27. ON touch button:
If you place your finger on this button for 1
secondtheboiler will switch on or off.
28. RESET touch button:
Iftheboiler is in lock-out mode as the alarm has
been triggered, touch the RESET button to
reset the lock-out and restore functioning. If
you are modifying any of the settings or
browsing the user menu, you may touch the
RESET button to exit the menu WITHOUT
SAVINGandreturn to the previous menu level.
29. DHW temperature touch button:
This is used to select the setpoint temperature
for domestic hot water. If oFF is selected, the
heating function is disabled. To select the
desired temperature, simply place your finger
on the "+" or "-" symbols on the touch button
to increase or decrease the desired DHW
temperature.
30. Boiler safety thermostat:
This is a cut-out mechanism to ensure the
boilertemperaturedoes not exceed 110ºC.
31. Fume safety thermostat:
This safety thermostat operates when the
temperature of the combustion products
exceeds 110ºC, in order to protect the
polypropyleneduct.

Evolution Solar HFD
4
3INSTALLATIONINSTRUCTIONS
The boiler must be installed by personnel authorised by the Department of Industry in accordance
with the applicable regulations and standards in force. However, the following recommendations
mustbecomplied with when installing the boiler:
3.1 Location
The boiler must be installed in a sufficiently ventilated site. The boiler must be accessible from the
sideformaintenance purposes.
3.2 Hydraulic installation of the heating and DHW circuit.
The hydraulic installation must be made by qualified personnel. The applicable installation
legislation is to be complied with, and the following recommendations should also be taken into
account:
- 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 boiler to
simplifymaintenancetasks.
- If the boiler is installed at a lower height than the heating installation, it is recommendable to
create a siphon at the boiler outlet, to prevent the installation from heating up due to natural
convectionwhenheating is not required.
- For correct boiler functioning, there must be a pressure of at least 0.5 bar in the domestic hot
watercircuit.
-Whenthe DHW supply pressure is over 5 bars, a pressure reducermustbe fitted.
- It is recommended to install a thermostatic mixing valve at the DHW outlet to protect against
burnsandto guarantee a constant, stable supply of hot water.
- Before starting up the unit, it is essential to install the condensation siphon supplied with the
boiler documentation on the condensation drain tube
ontheback of the boiler.
- The condensation pipe should lead to a drain outlet,
as the Evolution boiler is a condensation boiler and a
large amount of water may be generated.This
connection should be made in accordance with the
regulations for draining off condensation water to the
drainnetwork.
- Fill the siphon with water before starting up the unit, to
preventfumescoming out of it.
3.3 Fuel installation
The Evolution Solar HFD boiler is supplied with a Domestic sealed oil burner (see model in
“Technical Characteristics”). To correctly make the fuel installation, proceed in accordance with the
burnerinstructionsenclosed with this manual (see “Burner” section).
The oil line installation and start-up of the burner must be carried out by qualified, authorised
personnel.

5
3.4 Electrical Connection
The boiler is equipped for connection at 230 V~, 50 Hz to terminals 1and 2of terminal strip J1 (see
“ ElectricalConnection Diagram ”).Remember to earth the appliance.
The boiler has two terminal strips, TA1(J5) and TA2(J6) for connecting room thermostats or room
chronothermostats (see “ Electrical Connection Diagram ”) for remote control of heating circuits 1
and 2 respectively. To correctly connect the room thermostats, firstly remove the bridge joining the
terminals of terminal strip TA1. For connection to TA2, simply connect the thermostat to the
terminalstrip.
IMPORTANT: Before carrying out any work on the boiler’s electrical installation, always ensure
it is disconnected from the mains.
IMPORTANT: To access the electrical connection terminal strip, remove the protection box
under the main board, as shown in the picture below.
3.5 Installing heating circuit 2 (Optional)
All the models in the Evolution Solar HFD range of boilers are supplied equipped with a circulation
pump connected to heating circuit 1 (BC1). In addition to this circuit, all the models are designed to
controlasecond heating circulation pump, in heating circuit 2 (BC2).
The hydraulic installation of heating circuit 2 should be made using the optional flow circuit (IC') on
therearof the boiler (see "Diagrams and Measurements").
The circulation pump installed in heating circuit 2 must be electrically connected between
terminals N and 8 on supply connector block J2 (see “Electrical Connection Diagram").
Remove the protective box to
access the terminal strip

Evolution Solar HFD
6
3.6 Installing the solar circuit
The solar circuit integrated in the boiler must be installed by qualified personnel. The solar circuit
basically consists of a dual-chamber domestic hot water storage tank, for exchanging heat with the
domestic hot water, one solar circulation pump, a flow regulator and a solar collector, for
exchangingheatwith the sun.
To make optimum use of the solar energy, take special care when locating and positioning the solar
collector. Read the “Location of the Solar Collector” section carefully to obtain full performance
from the circuit. To correctly assemble the solar collector and its corresponding supports, carefully
followtheassembly instructions included with the same.
The hydraulic connection between the solar collector and the boiler is made using the solar inlet
socket "ES" and the solar return socket "RS" (see "Diagrams and Measurements"). On establishing
the solar circuit and the hydraulic connection between the solar collector and the boiler, the
followinglimitationsmust be taken into account:
Min. height
(G) Max.
height
(H)
Max. horizontal L.
(flow and return)
(L)
Max. total
length Min. slope (
α) Piping Ø
0.5 m. 10 m. 20 m. 40 m. 4% Ø 12 mm.
Seefig. A
When the solar circuit hydraulic connections have been made, fit the collector sensor bulb (Scol) to
the bulb-holder on the collector, and make the electrical connection on the terminal strip of
sensors J3, terminals 17 and 18 (see “Connection Diagram”). The collector sensor "Scol" is supplied
withtheboiler, in the documents bag.
For the solar circuit to function properly, it is essential to start it up correctly, carefully following the
instructions given in the points on this subject in the “Start-up” section of this manual. These
sections provide a detailed description of how to correctly fill the circuit, control the seal and adjust
theflow.
The heat transmission in the Evolution Solar HFD boiler solar circuit is made by means of a heat-
carrying fluid consisting of a mix of water (70%) and DOMUSA TEKNIK inhibitor liquid (minimum
30%). The DOMUSA TEKNIK inhibitor liquid’s resistance and heat transmission properties make it
suitable for use in solar heating installations. Its main function is to protect the different
components from corrosion, as the installation contains various metals. The Evolution Solar HFD
boiler is supplied pre-loaded with 8 litres of inhibitor liquid in the solar circuit of the hot water tank,
which means the optimum proportion of inhibitor liquid is reached when the circuit has been filled
(see“Fillingthe Solar Circuit").
IMPORTANT: The inhibitor liquid must always be mixed with water before use, as otherwise it
could damage the installation.
IMPORTANT: DOMUSA TEKNIK will only be liable for the correct functioning of the system if it
has been filled with DOMUSA TEKNIK inhibitor liquid.
IMPORTANT: Evolution Solar 30 HFD boilers are specifically designed to function with Ø12 mm
diameter tubes for the flow and return connection between the solar collector and
the hot water tank. If you wish to use any other diameter, consult the DOMUSA
TEKNIK customer service department.

7
3.7 Location of the solar collector
The choice of location for the solar collector is very important, as an unsuitable location could mean
a reduction in the efficiency of the solar circuit due to incorrect orientation, shadows being cast on
thesolarcollector, etc.
To correctly locate the solar collector, the calculation methods and reference tables figuring in the
“Technical Building Code” (CTE, Section HE 4) should be carefully followed. DOMUSA TEKNIK
provides a calculation computer program for installers, which can be ordered through the website
www.DOMUSA TEKNIK.es. However, it is recommended to take the following indications into
accountwhenchoosing the ideal location:
- Before deciding on the location, the accessibility of the site must be taken into account, both as
regardstheinstallation itself and for maintenance work on the solar collectors.
- The solar collector must face south.
- The solar collector must normally be installed with a slope 5º greater than the latitude of the
location.Anydifference from this angle will reduce its efficiency.
- For installations with integrated supports for slate tiles, the tilt must be at least 27º, and for
those with integrated supports for tiles, it must be at least 16º. The solar collector must be
levelled on installation, so that the upper part is horizontal.
- According to the Technical Building Code, losses due to orientation/tilt and shade must not
exceedthefollowing values:
MAXIMUM LOSSES
Case Orientationandtilt Shade Total
General 10% 10% 15%
Overlap 20% 15% 30%
Architecturalintegration 40% 20% 50%
When installing the solar collector, ensure that no objects cast shadow on it, particularly in winter,
when the sun is lower in the sky. The minimum distance from an obstacle the solar collector can be
installed at depends on the height of the obstacle and the latitude of the site of installation, as
showninthe table below:
Latitude35º Latitude 40º Latitude45º
Calculationof X Yx 1.75 Yx 2 Yx 2.25
A
scent
(
RS
)
Solar circuit return
Descent
(
E
S)
So
l
a
r
c
ir
cu
i
t
inl
et
α
Slope
L
Y
X
H
G
Fig A

Evolution Solar HFD
8
3.8 Combustion product evacuation
The combustion product exhaustion ducts must be installed by qualified personnel and must
complywithcurrent legislation and standards.
The Evolution Solar HFD boiler 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
thattheposition of the outside exhaustion duct is as shown in thefiguresand in the table below:
Exhaustion duct position Minimum distance
(mm)
A undera cornice 300
B betweentwo horizontalducts 1000
C froman adjacentwindow 400
D betweentwo verticalducts 1500
E froman adjacentventilation grille 600
F undera balcony(*) 300
G undera window 600
H undera ventilationgrille 600
I froma recessin thebuilding 300
J froma cornerof thebuilding 300
K fromthe ground 2500
L froma verticalor horizontalduct oroutlet (**) 300
M from a frontal surface at a distance of 3 metres from thefume outlet 2000
N as above, but with an opening 3000
(*) Providingthe width of the balcony is not over 2000 mm
(**)If the pipe is madeof materials sensitive to the action of the flue gases, this distance should be over 500 mm.
Note: Spanish law also stipulates that the end of the exhaustion duct must be at a distance of at least 400 mm. from any air intake
opening, and from the wall.
IMPORTANT: All accessories used for combustion product evacuation and air intake are to be
those supplied by DOMUSA TEKNIK.

9
4COMBUSTIONPRODUCT EVACUATION
4.1 ø80 dual duct system for combustion product evacuation and air intake (type C53)
For this type of boiler, combustion product evacuation and air intake take place through separate
Ø80 mm dual ducts, using the Ø80 dual duct outlet kit, code CGAS000265. Evolution Solar HFD
boilersareequipped with this type of fume removal by default.
The maximum length of piping that can be installed is 12 metres, which is the maximum sum of
the metres of the air intake duct and the metres of the combustion product evacuation duct. Each
90º elbow, or each two 45º elbows, will reduce the available length by 1 m. One horizontal metre is
theequivalentof 2 metres.
It is recommended to fit the exhaustion duct in a slightly upwardly-inclined direction, at around 2º -
3º,thuspreventing any water and condensation from dripping out.
Dual-ductoutletKit80/100inox
Cod.CGAS000265
1m. duct

80 inox.Cod. CGAS000145
1m.duct100inox. Cod.CGAS000268
1m.duct100PP Cod.CGAS000355
90º elbow 80inox Cod. CGAS000147
90ºelbow 100inox Cod.CGAS000267
90º elbow 100 PPCod. CGAS000358
45ºelbow80inox. Cod.CGAS000148
45º elbow100inox.Cod. CGAS000266
45º elbow 100 PPCod. CGAS000357
NOTE: For this configuration pipes and elbows

80arefor airintake.
Examplesofinstallation:
C12 mts. (EV HFD30)
C10 mts. (EV HFD40)

Evolution Solar HFD
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4.2 Changing from dual duct fume removal to coaxial fume removal
The Evolution Solar HFD boiler has a Ø80 dual duct system for combustion product evacuation and
air intake. If you prefer the combustion products to removed by means of a Ø80/125 coaxial tube,
you may use the Ø80/125 coaxial tube adaptor kit (supplied to order), code CGAS000213+Cód.
CGAS000222..
Adaptor for coaxial tubel 80/125
Code CGAS000213+ Cod. CGAS000222
Thechangeovermay be made with two different assembly configurations:
1. Rear outlet: simply remove the combustion air intake from the boiler, unscrewing the three
screws holding it in place, mount the adaptor on the fume outlet towards the rear, and use the
flexibleairinlet tube to connect it to the adaptor T.
2. Side or top outlet: the procedure is the same, but for side mounting of the adaptor kit a 90º
Ø80elbow(code CGAS000147) needs to be fitted before the adaptor atthefumeoutlet.
Thetwo configurations are shown in the figures below:
Combustion air intake
Rearoutlet
Side outlet
90º elbow Ø80

11
4.3 ø80-125 concentric horizontal duct for combustion product evacuation and air intake (type
C13)
Combustion product evacuation and air intake can be made using concentric Ø80 mm ducts for
combustion product evacuation and Ø125 mm ducts for air intake, using the 1m Ø80-125
horizontaloutletkit, code CGAS000189.
The maximum horizontal length from the boiler, including the kit terminal, is 6 metres for this
model. Each 90° elbow, or two 45° elbows, will reduce the available length by 1 metre. One
horizontalmetreis the equivalent of 2 metres.
It is recommended to fit the pipe in a slightly upwardly-inclined direction, at around 2º - 3º, to
preventanywater or condensation from dripping out.
1m horizontal duct kit 80/125
Code CGAS000189
90º coaxial elbow 80/125
Code CGAS000182
45º coaxial elbow 80/125
Code CGAS000183
1m coaxial duct

80/125
Code CGAS000184
Installationexamples:
L 6 mts. (EV SOLAR 30 HFD)

Evolution Solar HFD
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4.4 ø80-125 concentric vertical duct for combustion product evacuation and air intake (type C33)
Combustion product evacuation and air intake can be made using concentric Ø80 mm ducts for
combustion product evacuation and Ø125 mm ducts for air intake, using the Ø80-125 vertical duct
kit,codeCGAS000231.
The maximum vertical length from the boiler, including the kit terminal, is 7 metres. Each 90°
elbow, or two 45° elbows, will reduce the available length by 1 metre. One horizontal metre is the
equivalentof2 metres.
Vertical outlet kit 80/125
Code CGAS000231 Black tile

80 / 12 5
Code
CG
A
S0000
74
45º elbow

80/125
Code CGAS000183
90 º elb ow 80/125
Code CGAS000182
1mcoaxial duct 80/125
Code CGAS000184
Black tile 80/125
Code CGAS000075
Examplesofinstallation:
L7mts.

13
5STARTINGUP THE BOILER
5.1 Prior warnings
Repair and maintenance of the boiler must be carried out by a qualified professional, authorised by
DOMUSA TEKNIK. For optimum functioning and conservation of the boiler, it should be serviced
annually.
Carefullyreadthis instructions manual and keep it in a safe, easily-accessible place.
Before any servicing, disconnect the boiler from the mains and cut off the oil supply. Any
manipulationofthe sealed parts of the boiler is prohibited.
DOMUSA TEKNIK willnot be liable forany damages causedby failure to follow these instructions.
5.2 Filling the the heating circuit
To fill the heating circuit installation, open the fill valve
(20) until a pressure of 1 - 1.5 bars appears
on the “ boiler pressure ” setting on the display. The circuit should be filled slowly and with the
automatic air bleed valve cap (6) loose, to let the air out of the installation. The air should also be
bled from the rest of the installation using the air bleed valves provided. When the installation has
beenfilled,close the fill valve.
Evolution Solar HFD boilers have a pressure sensor (9) for controlling the pressure of the
installation. If the installation pressure drops below a minimum of 0.5 bar, the boiler will not switch
onanda low pressure alarm will appear on the display ("AP").
NOTE: Switching on the boiler with no water inside could result in serious damage.
5.3 Start-up
In order for the guarantee to be valid, the boiler must be started up by an official DOMUSA TEKNIK
Technical Assistance Service. Beforebeginning start-up, the following must be complied with:
-Theboiler must be electrically connected to the mains.
-Theinstallation must be filled with water (the manometer must indicate1-1.5 bar).
-Fuelmust be reaching the burner at a pressure of no morethan0.5 bar.
-Thesolar circuit must be filled up to the level socket.
5.4 Delivery of the installation
After the initial start-up, the Technical Assistance Service will explain to the user how the boiler
functions,makingany observations they consider relevant.
The installer is responsible for clearly explaining to the user the functioning of any control or
regulation device forming part of the installation but not supplied with the boiler.

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5.5 Filling the solar circuit
The Evolution Solar HFD boiler is supplied with the inhibitor liquid required for its correct
functioning. The rest of the solar circuit needs to be filled with tap water to obtain a perfect mix of
heat-carrying fluid and for optimum circuit functioning. The circuit is filled by connecting a hose to
thefillinginlet on the solar hot water tank.
Tocorrectlyfill the solar circuit, proceed as follows:
- Connect the filling inlet to the water mains
(mainsfillinginlet) with a hose.
- Connect a hose to the level gauge and lead it to
acontainer.
-Openthe level gauge valve.
-Turnon the water supply.
- When liquid begins to come out of the level
gauge, cut off the water supply to the filling
inlet.
- Close the level gauge valve when liquid stops
comingoutof it.
If the solar circuit should need to be drained and filled while carrying out maintenance, ensure
it is filled with the correct mix of water and inhibitor liquid, with at least 30% inhibitor liquid
(minimum 8.5 litres).
IMPORTANT: DOMUSA TEKNIK will only be liable for the correct functioning of the system if it
has been filled with DOMUSA TEKNIK inhibitor liquid.
5.6 Solar pump functioning in manual mode
For start-up and maintenance of the solar circuit, the solar circulation pumps need to be switched
on manually. The Evolution Solar HFD boiler allows the solar pumps to be activated using the "HN"
setting on the digital display. To do this, use the MODE touch button to browse to this setting and
the On touch button (27) to access it. When you have accessed the setting, use the touch button on
the right of the display
(29) to change the value, enabling the solar pumps with the following
valuesselected:
"0"– Automatic functioning mode (default value).
"1"– Both solar pumps are disabled.
"2"– Both solar pumps are activated.
"3" – Solar pump speed activateddefined "U5"parameter.
Solar pump "BS"
Filling intel
Level Socket
Water mains intel
(for filing)
Airdrainvalve

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When you have selected the desired manual functioning mode, place your finger on the On touch
button again to record the value and exit the "HN" setting. Operating modes 0, 1 and 2 will remain
activated indefinitely, until another operating mode is selected (even if the boiler is switched off
and switched on again). However, for safety reasons, manual modes 3 and 4 will only remain active
while they are selected, and the "HN" setting cannot be exited until another mode is selected (if the
boiler is switched off at this point, it will return to automatic operating mode when it is switched on
again).
IMPORTANT: The solar circuit must only be serviced and installed by sufficiently qualified
personnel, in accordance with current national and local installation and safety
legislation and standards.
5.7 Starting up the solar pump with timer
For correct system start-up, the solar circuit is equipped with 2 circulation pumps, one of which has
a timer (BST). When the system has started up, after ensuring that the heat-carrying liquid is flowing
through the whole circuit and when the flow is stabilised (15 minutes by default), the electronic
control switches off the pump with a timer, as one pump is sufficient to maintain the flow, thus
optimisingtheelectricity consumption of the solar circuit.
To change the switch-off time for the pump with a timer, use the MODE touch button to browse to
the "Switch-off time for solar pump with timer" display option. When this option is displayed, touch
the "+/-" symbols on the touch buttonon the right of the display (27) toselect the desired time. The
switch-off time can be adjusted between OFF and 5 and 30 minutes. To disable the switch-off
function for the pump with a timer, select "OFF" for the pump to remain continuously switched on
whilethereis solar energy.
IMPORTANT: The solar circuit must only be serviced and installed by sufficiently qualified
personnel, in accordance with current national and local installation and safety
legislation and standards.
5.8 Checking the solar circuit seal
For the solar circuit to function correctly, it is very important to ensure it is correctly sealed. To do
this, switch on the two solar pumps in manual mode by selecting value “2” on the “HN” setting on
thedigitaldisplay (see “S
olarpump functioning in manual mode ”).
After 15 minutes have elapsed and with the pumps still switched on, check there are no leaks
anywhere in the solar circuit. Make sure no siphons have been created in the installation, as this
wouldpreventcorrect drainback of the solar circuit.
IMPORTANT: Insufficient sealing of the solar circuit and a siphon effect caused by incorrect
layout of the piping can cause serious operating problems.

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5.9 Adjusting the solar circuit flow
For the solar circuit to function correctly it is essential to regulate its flow. The Evolution Solar HFD
boiler has a manual adjustment device withawindow for viewing the flow, which is supplied totally
open at maximum flow and should be adjusted to 2 l/min. To do this, when the solar circuit has
beenfilled,carefully proceed as follows:
1- Select the "HN" setting on the display using the
MODE touch button. When you have selected it,
accessitusing the On touch button.
2- Select 2 on the touch button on the right of the
display (29) .Thetwo pumps will start up.
3- Let the pumps run for at least 15 minutes, to ensure
theflowhas stabilised.
4- Repeat step 1 to switch off the solar pump with a
timer,selectingthe value 3 on the "HN" setting.
5 - Remove the red wheel from the interlock switch and
fit it to the end of the flow regulator indicator. Turn
the wheel to adjust the flow to 2 l/min, as shown on
the display. When you have adjusted the flow, turn
theredwheel back in its initial position again.
6- Lastly, return to automatic solar pump functioning
mode,selectingthe value 0 on the "HN" setting.
IMPORTANT: The solar circuit flow must be adjusted to 2 l/min. For installations that do not
reach a flow of 2 l/min, it is recommended to leave the flow regulator totally open.
Red wheel
Flow regulator
Pumpwithtimer
Botón táctil MODE Selectortáctil
Touch buttonMODE touch button

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6SHUTTINGDOWN THE BOILER
To switch off the boiler, place your finger on the power touch button (27) for 1 second. In Off mode,
while the boiler is plugged into the mains and connected to the fuel installation, its heating and DHW
functions will be switched off but the anti-frost protection and pump anti-block functions will remain
activated.
Toshutdown the boiler functioning completely, unplug it from the mains andcutoff the fuel supply.
7DRAININGTHE BOILER
The water is drained from the boiler by opening the air drain valve (23) inside the boiler (on the lower
right hand side on opening the door). Connect a flexible tube to this valve and run it to a drain. After
draining the boiler, close thevalve again and remove the flexibletube.
8DRAININGTHE SOLAR CIRCUIT
If you need to drain the solar circuit, connect a hose to the solar hot water tank drain valve (5) and run
the hose to a suitable container (minimum capacity 19 litres), so that the heat-carrying fluid can be
reused if necessary. Open the drain valve and the level valve. After draining the circuit, close the shut-
offvalvesand disconnect the hoses.

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9DIGITALDISPLAY:
The Evolution boiler is electronic and includes a digital display (24) showing the actual temperatures,
the setpoint temperatures and the pressure of the installation. In standby mode, the actual boiler
temperature in ºC is shown on the display. The rest of the available display options can be browsed by
touchingtheMODE button below the display, as follows:
MODEtouchbutton
Digitaldisplay
Repeatedly place your finger on the MODE touch button to select the different display options. When
thedesiredoption has been selected, it will return to standby after 20 seconds haveelapsed.
Thefollowingtable shows the different display options:
Standby. The actual boiler temperature is shown.
Actual boiler temperature.
Instantaneous domestic hot water temperature.
Actual flow temperature of the underfloor heating
installation
(option SRS2/EV only)
Boiler setpoint temperature selected using the
corresponding touch button
(26) .
Underfloor heating installation flow setpoint
temperature selected using the corresponding
touch button
(26) .
(option SRS2/EV only)