DOMUSA TEKNIK Evolution Solar 30 HDX User manual

INSTALLATION AND OPERATING INSTRUCTIONS
EVOLUTION SOLAR HDX
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 HDX model. With a suitable hydraulic installation, this oil-fired
boiler will provide the ideal level of comfort for your home. You will
also be able to enjoy a balanced, economical supply of domestic hot
water.
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
INDEX Page
1 COMPONENTS DIAGRAM..................................................................................................................................................................................................................3
2 CONTROL ELEMENTS..........................................................................................................................................................................................................................4
3 INSTALLATION INSTRUCTIONS.......................................................................................................................................................................................................5
3.1LOCATION AND ASSEMBLY OF THE BOILER/HOT WATER TANK UNIT.......................................................................................................................................................5
3.2HYDRAULIC INSTALLATION OF THE HEATING AND D.H.W.CIRCUIT......................................................................................................................................................6
3.3FUEL INSTALLATION ................................................................................................................................................................................................................................6
3.4ELECTRICAL CONNECTION ......................................................................................................................................................................................................................7
3.5INSTALLING HEATING CIRCUIT 2(OPTIONAL).........................................................................................................................................................................................7
3.6INSTALLING THE SOLAR CIRCUIT..............................................................................................................................................................................................................8
3.7LOCATION OF THE SOLAR COLLECTOR....................................................................................................................................................................................................9
3.8REMOVAL OF COMBUSTION PRODUCTS...............................................................................................................................................................................................10
4 REMOVAL OF COMBUSTION PRODUCTS .................................................................................................................................................................................11
4.1Ø80DUAL DUCT SYSTEM FOR COMBUSTION PRODUCT REMOVAL AND AIR INTAKE (TYPE C53).........................................................................................................11
4.2CHANGING FROM DUAL DUCT FUME REMOVAL TO COAXIAL FUME REMOVAL....................................................................................................................................12
4.3Ø80-125CONCENTRIC HORIZONTAL DUCT FOR COMBUSTION PRODUCT REMOVAL AND AIR INTAKE (TYPE C13)............................................................................13
4.4Ø80-125CONCENTRIC VERTICAL DUCT FOR COMBUSTION PRODUCT EVACUATION AND AIR INTAKE (TYPE C33).............................................................................14
5 STARTING-UP THE BOILER.............................................................................................................................................................................................................15
5.1PRIOR WARNINGS.................................................................................................................................................................................................................................15
5.2FILLING THE DOMESTIC HOT WATER TANK...........................................................................................................................................................................................15
5.3FILLING THE HEATING CIRCUIT..............................................................................................................................................................................................................15
5.4START-UP .............................................................................................................................................................................................................................................15
5.5INSTALLATION DELIVERY.......................................................................................................................................................................................................................15
5.6FILLING THE SOLAR CIRCUIT .................................................................................................................................................................................................................16
5.7SOLAR PUMP FUNCTIONING IN MANUAL MODE...................................................................................................................................................................................17
5.8STARTING UP THE SOLAR PUMP WITH TIMER........................................................................................................................................................................................17
5.9CHECKING THE SOLAR CIRCUIT SEAL ....................................................................................................................................................................................................17
5.10ADJUSTING THE SOLAR CIRCUIT FLOW ..............................................................................................................................................................................................18
6 DIGITAL DISPLAY:..............................................................................................................................................................................................................................19
7 TEMPERATURE SELECTION............................................................................................................................................................................................................21
7.1SELECTING THE BOILER SET POINT TEMPERATURE................................................................................................................................................................................21
7.2SELECTING THE THE DHWSETPOINT TEMPERATURE OF THE BACK-UP HOT WATER TANK..................................................................................................................21
7.3SELECTING THE DHWSETPOINT TEMPERATURE IN THE SOLAR HOT WATER TANK .............................................................................................................................22
7.4SELECTING THE UNDERFLOOR HEATING FLOW SETPOINT TEMPERATURE (WITH SRX2/EVKIT OPTION)............................................................................................22
8 OPERATION.........................................................................................................................................................................................................................................23
8.1SOLAR CIRCUIT FUNCTIONING..............................................................................................................................................................................................................23
8.2HEATING FUNCTION.............................................................................................................................................................................................................................24
8.3DOMESTIC HOT WATER PRODUCTION FUNCTION OF TANK................................................................................................................................................................24
8.4HEATING CIRCUIT 2FUNCTIONING (OPTIONAL)..................................................................................................................................................................................25
8.5FUNCTIONING WITH AN SRX2/EVUNDERFLOOR HEATING KIT (OPTIONAL)...................................................................................................................................25
9 ADDITIONAL FUNCTIONS..............................................................................................................................................................................................................26
9.1PUMP ANTI-BLOCK FUNCTION..............................................................................................................................................................................................................26
9.2ANTI-FROST FUNCTION ........................................................................................................................................................................................................................26
9.3TELEPHONE RELAY CONNECTION.........................................................................................................................................................................................................26
9.4ANTI-LEGIONELLA FUNCTION (OPTIONAL)...........................................................................................................................................................................................26
9.5BOILER PRESSURE SENSOR FUNCTION..................................................................................................................................................................................................26
9.6ROOM THERMOSTAT CONNECTION......................................................................................................................................................................................................26
9.7DISCONNECTING THE OIL-FIRED BOILER’S BACK-UPENERGY SUPPLY..................................................................................................................................................27
9.8DISCONNECTING THE SOLAR CIRCUIT...................................................................................................................................................................................................27
9.9KEYPAD BLOCK FUNCTION ...................................................................................................................................................................................................................27
10 E20 REMOTE CONTROL (OPTIONAL).......................................................................................................................................................................................27
10.1FUNCTIONING WITHOUT AN OUTDOOR SENSOR ...............................................................................................................................................................................28
10.2FUNCTIONING WITH AN EXTERNAL SENSOR (OPTIONAL)..................................................................................................................................................................28
10.3DHWMODE FUNCTIONING...............................................................................................................................................................................................................29
10.4TELEPHONE RELAY FUNCTION............................................................................................................................................................................................................29
11 SHUTTING DOWN THE BOILER..................................................................................................................................................................................................29
12 DRAINING THE BOILER..................................................................................................................................................................................................................29
13 DRAINING THE SOLAR CIRCUIT.................................................................................................................................................................................................29
14 SAFETY CUT-OUTS.........................................................................................................................................................................................................................30
14.1TEMPERATURE SAFETY CUT-OUT.......................................................................................................................................................................................................30
14.2BURNER CUT-OUT..............................................................................................................................................................................................................................30
14.3LOW PRESSURE CUT-OUT...................................................................................................................................................................................................................30
15 BOILER MAINTENANCE.................................................................................................................................................................................................................31
16 CIRCULATION PUMP FLOW CURVES.......................................................................................................................................................................................33
16.1CHARACTERISTIC HEATING PUMP ......................................................................................................................................................................................................33
16.2REGULATION PUMP HEATING.............................................................................................................................................................................................................33
16.3PRESSURE DROP.................................................................................................................................................................................................................................33
17 DIAGRAMS AND MEASUREMENTS...........................................................................................................................................................................................34
17.1EVOLUTION SOLAR 30HDX.............................................................................................................................................................................................................34
17.2EVOLUTION SOLAR 30HDXWITH SRX2/EVUNDERFLOOR HEATING KIT....................................................................................................................................35
18 TECHNICAL CHARACTERISTICS.................................................................................................................................................................................................36
19 CONNECTION DIAGRAM..............................................................................................................................................................................................................37
19.1EVOLUTION SOLAR 30HDX.............................................................................................................................................................................................................37

Evolution Solar HDX
2
19.2EVOLUTION SOLAR 30HDXWITH SRX2/EVUNDERFLOOR HEATING KIT....................................................................................................................................38
20 ELECTRICAL DIAGRAM..................................................................................................................................................................................................................39
20.1EVOLUTION SOLAR HDX..................................................................................................................................................................................................................39
20.2EVOLUTION SOLAR HDXKIT FLOOR HEATING WITH SRX2/EV.....................................................................................................................................................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..............................................................................................................................................................................................................45
22.7OPERATING CURVES...........................................................................................................................................................................................................................45
22.8NOZZLES............................................................................................................................................................................................................................................45
22.9ELECTRICAL CONNECTION DIAGRAM.................................................................................................................................................................................................46
22.10QUICK CONNECTOR.........................................................................................................................................................................................................................46
22.11BURNER CONTROL OPERATING SEQUENCE......................................................................................................................................................................................47
23 SPARES LIST......................................................................................................................................................................................................................................48
24 FAILURES...........................................................................................................................................................................................................................................52
25 GUARANTEE CONDITIONS..........................................................................................................................................................................................................54

3
1COMPONENTSDIAGRAM
1
2
3
4
5
6
7
8
910 11
12
13
14
15
16
18
19
20
21
17
1. Heatingcircuitdrainvalve..
2. Solarcircuitdrainvalve.
3. Solarcircuitpumps.
4. Flowregulator.
5. 250litresolarstoragetank
6. Solarcircuitlevelgauge.
7. Solarcircuitsafetyvalve.
8. Solarcircuitfillvalve.
9. DHWsafetyunit
10. Solarcapturepump
11. Automaticairvent.
12. DHWexpansionvessel.
13. Pressureswitch.
14. 130litreDHWstoragetank.
15. Heatingcircuitexpansionvessel.
16. Automaticairvent.
17. Heatingcircuitsafetyvalve..
18. Heatingpump.
19. DHWpump.
20. Fillvalve.
21. Sealedburner.

Evolution Solar HDX
4
2CONTROLELEMENTS
23 25 2624 27
22
29 28
22. 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.
23. 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.
24. MODE touch button:
When this button is touched the different
boiler temperatures appear on the digital
display.
26. ON touch button:
If you place your finger on this button for 1
secondtheboilerwillswitchonoroff.
26. RESET touch button:
Iftheboilerisinlock-outmodeas 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
SAVINGandreturntothepreviousmenulevel.
27. 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.
28. Boiler safety thermostat:
This is a cut-out mechanism to ensure the
boilertemperaturedoesnotexceed110ºC.
29. Fume safety thermostat:
This safety thermostat operates when the
temperature of the combustion products
exceeds 110ºC, in order to protect the
polypropyleneduct.

5
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
mustbecompliedwithwheninstallingtheboiler:
3.1 Location and assembly of the boiler/hot water tank unit
The boiler must be installed in a sufficiently ventilated site. The boiler has an integrated solar
capturesystemandmustthereforebelocatedat a lower level than the solar collector installation.
The two modules are to be placed back-to-back and aligned at the front. The assembly may be
made either towards the right or towards the left. Each module is supplied with levelling screws on
itsbase,accessiblefromthefront,asshown in the picture below.
When you have correctly positioned the modules, interconnect them hydraulically using the two
flexible connection tubes supplied inside the boiler module. Open the door to access them.
Connect socket “A” on the rear of the accumulator module to the corresponding socket “A” of the
boilermodule,andsocket“B”tothecorresponding socket “B”, as shown in the picture below.
Finally, connect the two modules electrically using the connectors on the rear of each module, as
showninthepicturebelow.
The boiler must be accessible from the side for maintenance purposes. The solar accumulator
modulemaybeplacedoneithersideof the back-up boiler module for this purpose.
A
B
A
B
Electrical connection
Levellin
g
bolts

Evolution Solar HDX
6
3.2 Hydraulic installation of the heating and D.H.W. 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.
- Ensure the two modules have been hydraulically interconnected before connecting the boiler.
(Seesection“3.1”)
- 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
convectionwhenheatingisnotrequired.
- For correct boiler functioning, there must be a pressure of at least 0.5 bar in the domestic hot
watercircuit.
-WhentheDHWsupplypressureisover 5 bars, a pressure reducer must be fitted.
- It is recommended to install a thermostatic mixing valve at the DHW outlet to protect against
burnsandtoguaranteeaconstant,stablesupply 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
onthebackoftheboiler.
- 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
preventfumescomingoutofit.
3.3 Fuel installation
The Evolution Solar HDX 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
burnerinstructionsenclosedwiththismanual(see“
Burner ”section).
The oil line installation and start-up of the burner must be carried out by qualified, authorised
personnel.

7
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.
Remove the protective box to
access the terminal strip
3.5 Installing heating circuit 2 (Optional)
All the models in the Evolution Solar HDX range of boilers are supplied equipped with a circulation
pump connected to a heating circuit, circuit 1 (BC1). In addition to this circuit, all the models are
designed to control a second heating circulation pump,in a second heating circuit, circuit 2 (BC2).
The hydraulic installation of heating circuit 2 should be made using the optional flow circuit (IC')
ontherearoftheboiler(see"Diagrams and Measurements").
A circulation pump and a shut-off valveorelectrovalvewillneedtobe included in heating circuit Nº
2. This pump must be electrically connected between terminals N and 8 on the supply connector
blockJ2(see“ElectricalConnectionDiagram").

Evolution Solar HDX
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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, two solar circulation pumps, a flow regulator and one or two solar collectors
forexchangingheatwiththesun.
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
followtheassemblyinstructionsincludedwiththesame.
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". When making the
solar circuit and the hydraulic connection between the solar collector and the boiler, the following
limitationsmustbetakenintoaccount:
Min. height
(G) Max. height (H) Max. horizontal L. (flow and return) (L) Max. total length Min. slope ( α) Piping Ø
0.5 m. 10.9 m. 20 m. 40 m. 4% Ø 12 mm.
When the solar circuit hydraulic connections have been made, assemble the collector sensor bulb
(Scol) on the bulb-holder provided on the collector, and make the electrical connection on the
connector block of sensors J3,terminals17 and 18 (see “Connection Diagram”). The collector sensor
"Scol"issuppliedwiththe solar collectors, in the accessory box.
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, check the seal and adjust
theflow.
The heat transmission in the Evolution Solar HDX 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 HDX
boiler is supplied pre-loaded with 7.5 litres of inhibitor liquid in the solar circuit of the hot water
tank, which means the optimum proportion of inhibitor liquid is obtained on filling the circuit (see
“FillingtheSolarCircuit").
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 HDX 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.

9
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 bear the following indications
inmindwhenchoosingtheideallocation:
- Before deciding on the location, the accessibility of the site must be taken into account, both as
regardstheinstallationitselfandformaintenancework on the solar collectors.
- The solar collector must face south.
- The solar collector should normally be installed with a slope 5º greater than the latitude of the
location.Anydifferencefromthisanglewillreduce its efficiency.
- For installations with integrated supports for slate, 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
exceedthefollowingvalues:
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
showninthetablebelow:
Latitude35º Latitude40º Latitude45º
CalculationofX Yx 1.75 Yx2 Yx2.25
A
scent
(RS) Solar circuit
return
Descent
(ES) Solar circuit inlet
α
Slope
H
G
L
Y
X
Fig A

Evolution Solar HDX
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3.8 Removal of combustion products
The combustion product exhaustion ducts must be installed by qualified personnel and must
complywithcurrentlegislationandstandards.
The Evolution Solar HDX 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
thatthepositionoftheoutsideexhaustionduct is as shown in the figures and in the tablebelow:
Exhaustion duct position Minimum distance
(mm)
A under a cornice 300
B betweentwohorizontalducts 1000
C fromanadjacentwindow 400
D betweentwoverticalducts 1500
E fromanadjacentventilation grille 600
F under a balcony (*) 300
G underawindow 600
H underaventilationgrille 600
I fromarecessin the building 300
J fromacornerof the building 300
K fromtheground 2500
L fromaverticalor horizontal duct or outlet (**) 300
M fromafrontalsurface at a distance of 3 metres from the fumeoutlet 2000
N asabove,butwith an opening 3000
(*) Providing the width of the balcony is notover 2000 mm.
(**) Ifthe pipeis made of materials sensitiveto the action of the flue gases,this distanceshould beover 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 removal and air intake are to be
those supplied by DOMUSA TEKNIK.

11
4REMOVALOF COMBUSTION PRODUCTS
4.1 ø80 dual duct system for combustion product removal and air intake (type C53)
For this type of boiler, combustion product removal and air intake take place through separate Ø80
mm dual ducts, using the Ø80 dual duct outlet kit, code CGAS000265. Evolution Solar HDX boilers
areequippedwiththistypeoffumeremoval 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 removal duct. Each 90º
elbow, or each two 45º elbows, will reduce the available length by 1 m. One horizontal metre is the
equivalentof2metres.
It is recommended to fit the exhaustion duct in a slightly upwardly-inclined direction, at around 2º -
3º,thuspreventinganywaterandcondensationfrom dripping out.
Dual exhaustion ductkit

80/100
CodeCGAS000265
Tubo1m80i nox Cod. CGAS000145
Tubo1m100inox Cod. CGAS000268
Tubo1m100pp Cod. CGAS000355
90ºelbow

80inox Cod. CGAS000147
90º elbow100 inox Cod.CGAS000267
90º elbow 100PP Cod.CGAS000358
45ºelbow

80inox Cod.CGAS000148
45º elbow100inox Cod. CGAS000266
45ºelbow 100PP Cod.CGAS000357
NOTE
:
Forthisconfiguration pipesandelbows?80 areforairintake.
Examplesofinstallation:

Evolution Solar HDX
12
4.2 Changing from dual duct fume removal to coaxial fume removal
The Evolution Solar HDX boiler has a Ø80 dual duct system for combustion product removal 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 + code
CGAS000222.
Adaptorfor coaxialtube80/125
CodeCGAS000213+CGAS000222
Thechangeovermaybemadewithtwodifferent 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
flexibleairinlettubetoconnectitto the adaptor T.
2. Side or top outlet: the procedure is the same, but for side mounting of the adaptor kit a 90º
Ø80elbow(codeCGAS000147)needstobefitted before the adaptor at the fume outlet.
Thetwoconfigurationsareshowninthefigures below:
Combustion air intake
Rear outlet
Side outlet
Codo 90º Ø100
Cód.CGAS000267

13
4.3 ø80-125 concentric horizontal duct for combustion product removal 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,codeCGAS000189.
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
horizontalmetreistheequivalentof2metres.
It is recommended to fit the pipe in a slightly upwardly-inclined direction, at around 2º - 3º, to
preventanywaterorcondensationfromdrippingout.
1m horizontal duct kit 80/125
Code CGAS000189
90º coaxial elbow 80/125
Code CGAS000182
45º coaxial elbow 80/125
Code CGAS000183
1m coaxial tube

80/125
Code CGAS000184
Examplesofinstallation:
L 6 mts. (EV SOLAR 30 DX)

Evolution Solar HDX
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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
equivalentof2metres.
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 el b ow 80/125
Code CGAS000182
1mcoaxial duct 80/125
Code CGAS000184
Black tile 80/125
Code CGAS000075
Examplesofinstallation:
L7 mts.

15
5STARTING-UPTHE 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.
Carefullyreadthisinstructionsmanualandkeepit in a safe, easily-accessible place.
Before any servicing, disconnect the boiler from the mains and cut off the oil supply. Any
manipulationofthesealedpartsoftheboiler is prohibited.
DOMUSA TEKNIK willnot be liable for anydamages caused by failure to follow these instructions.
5.2 Filling the domestic hot water tank
The hot water tanks must be filled before filling the heating circuit. Open the flow of domestic hot
water to the hot water tank, and turn on a hot water tap in the installation. When the tap begins to
runfreely,turnitoff,asthismeans the hot water tank is full.
5.3 Filling 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 caps (16) and (11) 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
installationhasbeenfilled,closethefillvalve.
Evolution Solar HDX boilers have a pressure sensor (13) for controlling the pressure of the
installation. If the installation pressure drops below a minimum of 0.5 bar, the boiler will not switch
onandalowpressurealarmwillappear on the display ("AP").
NOTE: Switching on the boiler with no water inside could result in serious damage.
5.4 Start-up
In order for the guarantee to be valid, the boiler must be started up by an official DOMUSA
TEKNIK Technical Assistance Service. Before beginning start-up, the following must be complied
with:
-Theboilermustbeelectricallyconnectedto the mains.
-Theinstallationmustbefilledwithwater (the manometer must indicate 1 - 1.5 bar).
-Fuelmustbereachingtheburnerat a pressure of no more than 0.5 bar.
-Thesolarcircuitmustbefilledup to the level socket.
5.5 Installation delivery
After the initial start-up, the Technical Assistance Service will explain to the user how the boiler
functions,makinganyobservationstheyconsiderrelevant.
The installer is responsible for clearly explaining to the user the functioning of any control or
regulationdeviceformingpartoftheinstallationbut not supplied with the boiler.

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5.6 Filling the solar circuit
The Evolution Solar HDX 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
thefillinginletonthesolarhotwater tank.
Tocorrectlyfillthesolarcircuit,proceedas follows:
- Connect the filling inlet to the water
mainswithahose.
- Connect a hose to the level socket and
leadittoacontainer.
-Openthelevelsocketvalve.
-Turnonthewatersupply.
- When liquid begins to come out of the
level socket, cut off the water supply to
thefillinginlet.
- Close the level socket valve when liquid
stopscomingoutofit.
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 15 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.

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5.7 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 HDX 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 (25) to access it. When you have accessed the setting, use the touch button on
the right of the display (27) to change the value, enabling the solar pumps with the following
valuesselected:
"0"–Automaticfunctioningmode(defaultvalue).
"1"–Solarpumpisswitchedoff.
"2"–Thesolarpumpisactivated.
"3"–Solarpumpspeedactivated defined " U5" parameter.
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.
5.8 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
optimisingtheelectricityconsumptionofthesolarcircuit.
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 buttonontherightofthedisplay
(27) toselectthedesiredtime.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
whilethereissolarenergy.
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.
5.9 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 “2” on the “HN” setting on the
digitaldisplay(see“ Solarpump 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
wouldpreventcorrectdrainbackofthesolarcircuit.

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IMPORTANT: Insufficient sealing of the solar circuit and a siphon effect caused by incorrect
layout of the piping can cause serious operating problems.
5.10 Adjusting the solar circuit flow
For the solar circuit to function correctly it is essential to regulate its flow. The Evolution Solar HDX
boiler has a manual adjustment device withawindowforviewingtheflow,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,carefullyproceedasfollows:
1- Select the "HN" setting on the display using the MODE
touch button. When you have selected it, access it
usingtheOntouchbutton.
2- Select 2 on the touch button on the right of the display
(27) .Thetwopumpswillstartup.
3 - Let the pumps run for at least 15 minutes, to ensure the
flowhasstabilised.
4 - Repeat step 1 to switch off the solar pump with a timer,
selecting3onthe"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 the red
wheelbackinitsinitialpositionagain.
6- Lastly, return to automatic solar pump functioning
mode,selectingthevalue0onthe"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.