DOMUSA TEKNIK EVOLUTION EV 25 HAM User manual

INSTALLATION AND OPERATING INSTRUCTIONS
 EVOLUTION EV HAM

Thank you for choosing a DOMUSA TEKNIK heating boiler. From the
range of DOMUSA TEKNIK products you have chosen the Evolution EV
HAM model. This boiler is capable of providing you with the
temperature comfort suitable for your home, as well as balanced and
economical Domestic Hot Water (DHW). This always together with a
properandgas-oilfedhydraulicinstallation.
Thismanualformsanessential partof the productand it mustbe given
to the user. Read the warnings and recommendations in the manual
carefully, as they contain important information on the safety, use and
maintenanceoftheinstallation.
Theseboilersaretobeinstalledbyskilledpersonnelonly,inaccordance
with the legislation in force and following the manufacturer’s
instructions.
Thestart-upoftheseboilersandanymaintenanceoperationsmustonly
be carried out by DOMUSA TEKNIK’s Authorised Technical Assistance
Services.
Incorrect installation of these boilers could result in damage to people,
animals or property, and the manufacturer will hold no liability in such
cases.
DOMUSATEKNIKinformsallpartiesconcernedthat,incompliancewith
section 1 of the first additional provision of Law 11/1997, the
responsibility for delivering packaging waste or used packaging for its
properenvironmentalmanagementwillbethatofthefinalownerofthe
product. At the end of its useful life, the product must be taken to a
selectedcollectionpointforelectricalandelectronicequipmentormust
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
authorityorthedistributorwherethepurchasewas made.

1
CONTENTS Page
1LIST OFCOMPONENTS.........................................................................................................................................................................................2
2CONTROL COMPONENTS....................................................................................................................................................................................3
3INSTALLATIONINSTRUCTIONS..........................................................................................................................................................................4
3.1LOCATION................................................................................................................................................................................................................................................4
3.2HYDRAULIC INSTALLATION .....................................................................................................................................................................................................................4
3.3ELECTRICAL CONNECTION.......................................................................................................................................................................................................................4
3.4FUELINSTALLATION................................................................................................................................................................................................................................4
3.6INSTALLING THE SRAM2/EVUNDERFLOORHEATING KIT (OPTIONAL)...............................................................................................................................................5
3.7INSTALLING HEATING CIRCUIT 2(OPTIONAL).........................................................................................................................................................................................5
4COMBUSTION PRODUCTS EXHAUSTION.......................................................................................................................................................6
4.1EXTERNAL POSITION OF THEGAS EVACUATION PIPES TERMINAL............................................................................................................................................................6
4.2PREPARATION OF THE BURNER AIR INTAKE FOR BALANCED FLUE OPERATIONMODE .............................................................................................................................7
4.3COMBUSTION PRODUCTS EXHAUSTION ANDAIR INTAKE DUAL-DUCTDEVICEØ80(TYPR C53).............................................................................................................8
4.4DOUBLE CONDUIT TO COAXIAL EXHAUSTION TRANSFORMATION ..........................................................................................................................................................9
4.5COMBUSTION PRODUCTS EXHAUSTION ANDAIR INTAKE HORIZONTALLY-ARRANGED COAXIAL DEVICE Ø80-125(TYPE C13).........................................................10
4.6COMBUSTION PRODUCTS EXHAUSTION ANDAIR INTAKE VERTICALLY-ARRANGED COAXIAL DEVICE Ø80-125(TYPE C33)...............................................................11
5FILLING THE INSTALLATION............................................................................................................................................................................12
6DRAINING THE BOILER.......................................................................................................................................................................................12
7 SHUTTING DOWN THEBOILER........................................................................................................................................................................12
8FIRST START-UP...................................................................................................................................................................................................12
9INSTALLATIONDELIVERY..................................................................................................................................................................................12
10DIGITAL DISPLAY..............................................................................................................................................................................................13
11TEMPERATURESELECTION............................................................................................................................................................................15
11.1SELECTING THE BOILERSETPOINT TEMPERATURE...............................................................................................................................................................................15
11.2SELECTING THE DHWSETPOINT TEMPERATURE ...............................................................................................................................................................................15
11.3SELECTING THE UNDERFLOOR HEATING FLOW SETPOINT TEMPERATURE (WITH SRAM2/EVKIT OPTION)....................................................................................16
12OPERATION.........................................................................................................................................................................................................16
12.1HEATING FUNCTION ..........................................................................................................................................................................................................................16
12.2DOMESTIC HOT WATER PRODUCTION FUNCTION.............................................................................................................................................................................17
12.3FUNCTIONING WITH AN SRAM2/EVUNDERFLOOR HEATING KIT(OPTIONAL).............................................................................................................................17
12.4HEATING CIRCUIT 2FUNCTIONING (OPTIONAL)................................................................................................................................................................................18
13ADDITIONALFUNCTIONS..............................................................................................................................................................................18
13.1PUMP ANTI-BLOCK FUNCTION ...........................................................................................................................................................................................................18
13.2ANTI-FROSTFUNCTION......................................................................................................................................................................................................................18
13.3BOILER PRESSURE SENSOR FUNCTION................................................................................................................................................................................................18
13.4TELEPHONERELAY CONNECTION.......................................................................................................................................................................................................18
13.5ROOM THERMOSTAT CONNECTION....................................................................................................................................................................................................18
13.6KEYPAD BLOCK FUNCTION.................................................................................................................................................................................................................19
14SAFETY CUT-OUTS............................................................................................................................................................................................20
14.1TEMPERATURE SAFETY CUT-OUT........................................................................................................................................................................................................20
14.2BURNERCUT-OUT..............................................................................................................................................................................................................................20
14.3LOW PRESSURE CUT-OUT...................................................................................................................................................................................................................20
15BOILER MAINTENANCE...................................................................................................................................................................................21
15.1CLEANING THE BOILER .......................................................................................................................................................................................................................21
15.2ANTI-FROST PROTECTION ..................................................................................................................................................................................................................22
15.3BOILER WATER CHARACTERISTICS......................................................................................................................................................................................................22
16CIRCULATINGPUMP FLOW CURVES...........................................................................................................................................................23
16.1CHARACTERISTIC CURVES OF THE PUMP............................................................................................................................................................................................23
16.2REGULATION OF THE CIRCULATION PUMP.........................................................................................................................................................................................23
16.3PRESSURE DROP.................................................................................................................................................................................................................................23
17DIAGRAMS AND MEASUREMENTS..............................................................................................................................................................24
18TECHNICALCHARACTERISTICS....................................................................................................................................................................25
19ALARM CODES...................................................................................................................................................................................................26
20CONNECTIONDIAGRAM................................................................................................................................................................................27
21ELECTRICALDIAGRAM....................................................................................................................................................................................28
22BURNER................................................................................................................................................................................................................29
22.1ASSEMBLY..........................................................................................................................................................................................................................................29
22.2BURNER START-UP.............................................................................................................................................................................................................................29
22.3ADJUSTING THE COMBUSTION CONDITIONS......................................................................................................................................................................................29
22.4OIL PRESSURE ADJUSTMENT ..............................................................................................................................................................................................................31
22.5OIL SUPPLY PIPING DIAGRAMS...........................................................................................................................................................................................................31
22.6TECHNICAL SPECIFICATIONS ..............................................................................................................................................................................................................32
22.7NOZZLES............................................................................................................................................................................................................................................32
22.8ELECTRICAL CONNECTION DIAGRAM .................................................................................................................................................................................................32
22.9QUICK CONNECTOR ...........................................................................................................................................................................................................................33
22.10BURNER CONTROL OPERATINGSEQUENCE......................................................................................................................................................................................34
23FAILURES.............................................................................................................................................................................................................35
24SPARES LIST........................................................................................................................................................................................................37
BOILER.........................................................................................................................................................................................................................................................37
BURNER.......................................................................................................................................................................................................................................................39

Evolution EV HAM
2
1 LIST OF COMPONENTS
8
9
11 12
18
15
11
14
13
10
7
6
5
4
3
21
17
16
1. Drainagevalve.
2. Domesticbalacedflueburner.
3. Combustionairinlet.
4. Hotwaterheatexchanger.
5. Fillingvalve.
6. Heatingcirculating pump.
7. Hotwaterchargepump.
8. Boiler temperature sensors.
9. Safety valve.
10. Pressuresensor.
11. Automaticairvent.
12. Expansionvessel.
13. Stainlesssteelcondenser.
14. Fumeexhaustionduct.
15. Steelbody.
16. Flowswitch.
17. Hotwaterflowlimit.
18. Hotwatertemperaturesensor.

3
2 CONTROLCOMPONENTS
20 22 2321 24
19
26 25
19.Digitaldisplay:
Thisistheboilerfunctioningdisplay,onwhichall
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 the
digitaldisplay.
20.Boilertemperaturetouchbutton:
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 onthetouchbuttonto increaseor
decrease the desired boilertemperature.
21. MODEtouch button:
When this button is touched the different boiler
temperaturesappearonthedigital display.
22.ONtouchbutton:
If you place your finger on this button for 1
secondtheboilerwillswitchonoroff.
23. RESETtouch button:
If the boiler 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 SAVING and return to
thepreviousmenulevel.
24.DHWtemperaturetouchbutton:
This is used to select the setpoint temperature
for domestic hot water. If oFF is selected, the
DHW function will be disabled. To select the
desiredtemperature,simplyplaceyourfingeron
the "+" or "-" symbols on the touch button to
increase or decrease the desired DHW
temperature.
25.Boilersafetythermostat:
This is a cut-out mechanism to ensure the boiler
temperaturedoesnotexceed110ºC.
26.Fumesafetythermostat:
This safety thermostat operates when the
temperature of the combustion products
exceeds 110ºC, in order to protect the
polypropyleneduct.

Evolution EV HAM
4
3 INSTALLATIONINSTRUCTIONS
TheboilermustbeinstalledbypersonnelauthorisedbytheDepartmentofIndustryinaccordancewith
the applicable regulations and standards in force. However, the following recommendations must be
compliedwithwheninstallingthe boiler:
3.1 Location
The boiler must be installed in a enough ventilated room and sufficient access space must be
maintained to carry out preventive or corrective maintenance operations.
3.2 HydraulicInstallation
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:
-Theinsideoftheinstallationpipingshouldbethoroughlycleanedbeforeswitchingontheboiler.
-Werecommendinsertingcut-offvalvesbetweentheinstallationpipingandtheboilertosimplify
maintenancetasks.
- If a shut-off valve is fitted at the DHW inlet, it must have a safety valve incorporated, calibrated
to9bar.
- For correct boiler functioning, there must be a pressure of at least 0.5 bar in the domestic hot
watercircuit.
- Before starting up the unit, it is essential to install the condensation siphon supplied with the
boilerdocumentationonthecondensationdraintubeonthebackoftheboiler.
-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 drain network.
- Fill the siphon with water before starting up the unit, to
preventfumescomingoutofit.
3.3 ElectricalConnection
The boiler is equipped for connection at 230 V~, 50 Hz to terminals 1and 2of terminal strip J1 (see
“
ElectricalConnection Diagram ”). Remembertoearththeappliance.
The boiler has two terminal strips, TA1(J5) and TA2(J7) for connecting room thermostats or room
chronothermostats(see“ ElectricalConnectionDiagram ”)forremotecontrolofheatingcircuits1and
2 respectively. To correctly connect the room thermostats, firstly remove the bridge joining the
terminalsofterminal stripTA1.Forconnectionto TA2,simplyconnect thethermostattotheterminal
strip.
3.4 FuelInstallation
The Evolution boiler is supplied with a Domestic sealed oil burner (2) (see model in “Technical
Characteristics”). For the fuel installation, proceed in accordance with the burner instructions
enclosed with this manual (see “Burner” section). The oil line installation and start-up of the burner
mustbecarriedoutbyqualified,authorised personnel.

5
3.5
3.6 InstallingtheSRAM2/EVUnderfloorHeating Kit (Optional)
The procedure for suitably connecting the SRAM2/EV Underfloor Heating Kit to the Evolution EV
HAMboilerisasfollows:
-Unplug the boiler from the mains.
- Connect a flow temperature sensor (supplied with the kit) to sensor terminal strip J3 (terminals
15 and 16), first removing the resistance (Rr) supplied by default (see “Electrical Connection
Diagram").
-Fitthetemperaturesensorbulbaccording to theinstructions enclosed with thekit.
- Connect the heating pump to supply terminal strip J2 on the circuit 1 pump connection (pump
BC1;terminals N and 7)(see“Electrical Connection Diagram").
- Connect the PWMCcable to sensor terminal strip J3 (terminals 13 and 14) (see “Electrical
ConnectionDiagram").
-Connectthe3-waymixervalvemotortosupplyterminalstripJ2(terminalsN,8(+)and9(-))(see
“ElectricalConnectionDiagram").
Forcorrecthydraulicinstallation,carefullyfollowtheassemblyandconnectioninstructionsenclosed
withtheSRAM2/EV kit.
3.7 Installing heatingcircuit 2 (Optional)
All the models in the Evolution range of boilers are supplied with a circulation pump connected to
heating circuit 1 (BC1). In addition to this circuit, all the models are designed to control a second
heatingcirculationpumpina second heating circuit (circuit 2, BC2).
The hydraulic installation of heating circuit 2 should be made using the optional flow circuit (IC') on
therearoftheboiler(see"DiagramsandMeasurements").IfthereisanSRAM2/EVunderfloorheating
kitconnectedtotheoptionalflowIC',heatingcircuit2shouldbeconnectedattheadditionalsockets
providedinthekit(on the boiler T-connectors).
Thecirculationpumpinstalledinheatingcircuit2mustbeelectricallyconnectedbetweenterminals
Nand6onthe supply connectorblockJ2(see “Electrical Connection Diagram").

Evolution EV HAM
6
4 COMBUSTION PRODUCTS EXHAUSTION
The Evolution boilers are balanced flue oil boilers, so that the combustion products exhaustion is
carried out by means of an outlet duct and an air intake from outside. It can also work by taking the
air intake for the burner from the room, this is how the boilers come set from factory. To operate in
this mode, the room must be sufficiently ventilated and not obstruct or block any ventilation
openings.
4.1 External position of the gasevacuationpipesterminal
The installation of exhaustion of the products of combustion has to be carried out by qualified
personnel staff and it will fulfill the requirements demanded in the legislation and effective
regulatory schemes.
Itisrecommendedthatthepositionattheexhaustionductexteriorportionshouldbeinaccordance
with the data of the following figures and table:
Exhaustionduct position Minimum distance
(mm)
A underacornice 300
B betweentwo horizontalducts 1000
Cfrom an adjacent window 400
D betweentwo verticalducts 1500
E fromanadjacent ventilationgrille 600
F under a balcony (*) 300
G under a window 600
Hundera ventilationgrille 600
I froma recess inthe building 300
Jfrom acorner of the building 300
Kfrom thefloor 2500
Lfrom a verticalor horizontal duct or outlet (**) 300
M fromafrontalsurface at adistanceof 3 metres from thefume outlet 2000
Nas above,butwith an opening 3000
(*)Providing the width of the balcony is not over 2000 mm.
(**)If the materials from which the pipe is made are sensitive to the action of the flue gases, this distance should be over 500 mm.
IMPORTANT: All accessories used for combustion product removal and air intake are to be those
supplied by DOMUSA TEKNIK.

7
4.2 Preparationoftheburnerair intake for balanced flue operation mode
Evolution boilers come prepared from factory for operation by taking the intake air for the burner
fromtheroom.
In case of choosing room sealed mode operation, with the evacuation of the combustion gases
through an outlet conduct and a independent external air intake, air intake for the burner must be
preparedfollowing these instructions:
- Removethetoppanel (1).
- Turn the air intake conduct (2) andtakeouttheairintaketerminal (3) porfromtheback(4).
- Tie air intake terminal (3) atthe back (4) with twoscrews (5) (included in the documentation
bag).
- Removethegrid(6)(this won´t be used).
- Reattachtheroof(1).
1
2
A
3
4
6
A
5

Evolution EV HAM
8
4.3 Combustionproductsexhaustion and airintake dual-duct device ø80 (typr C53)
For this type of boiler, the removal of combustion products and air intake take place through
separate Ø80 mm. dual ducts. The Ø80 dual duct outlet kit, code CGAS000186, is used for this
purpose.This is the type of fume removal provided for Evolution boilersby default.
The maximum length of pipe that can be installed is 15 metres for the model EV 35 HAM and 17
meters for the model EV 25 HAM, which is the result from adding the pipe metres for the air intake
and those of the combustion products exhaustion. Each elbow of 90°, or two of 45°, reduces the
availablelengthby1meter andeachhorizontal meter is equivalent to 2vertical meters.
It is recommended that the exhaustion duct be fitted in a slightly upwardly-inclined direction, at
around2º-3º,thuspreventinganywaterandcondensationfromdrippingout.
Dual-ductoutletKit∅80/100 inox
Cod.CGAS000265
1m. duct∅80 inox. Cod. CGAS000145
1m.duct∅100inox. Cod.CGAS000268
1m.duct∅100PP Cod.CGAS000355
90º elbow∅80 inox Cod.CGAS000147
90ºelbow ∅100inox Cod. CGAS000267
90ºelbow ∅100PPCod. CGAS000358
45ºelbow ∅80inox.Cod. CGAS000148
45º elbow∅100 inox. Cod. CGAS000266
45ºelbow ∅100PPCod. CGAS000357
Examplesofinstallation:

9
4.4 Double conduit to coaxial exhaustion transformation
The boiler Evolution is given prepared for the exhaustion of the products of combustion and air
intakebymeansofthesystemofdoubleconduitofØ80.Whenyouwanttocarryouttheexhaustion
ofcombustion gasesby meansofcoaxial tubeofØ80/125,youwill useforitaKit adaptorfor coaxial
tubeØ80/125(givenunderorder) Code CGAS000213
Kit adaptor for coaxial tube∅80/125
Cod. CGAS000213 +Cod. CGAS000222
Thetransformationwillbeabletorealizewithtwodifferentmounting setups:
1. Back exit: it will be enough with disassembling the combustion air intake of the boiler,
unscrewing the three screw, mount the adaptor in the exit offlue gases of the boilerbackwards
and using the flexible tubeof entry of air, connectit to the adaptor.
2.Lateralorupwardsexit:itwillberealizedinthesameway,buttomounttheadaptorkitlaterally
it is necessary to mount an elbow of 90º Ø80 (code CGAS000147), before the adaptor in the exit
offluegases.
Inthefollowing picturesthey can observe both setups:
Combustion air intake
Rearoutlet
Sideoutlet
90º Ø100 elbow

Evolution EV HAM
10
4.5 Combustionproductsexhaustion and air intake horizontally-arranged coaxial device
ø80-125 (type C13)
TheremovalofcombustionproductsandairintakecanbemadeusingconcentricØ80mmductsfor
the removal of combustion products and Ø125 mm ducts for the air intake, using the 1m Ø80-125
horizontalductkit,codeCGAS000189.
The maximum horizontal length counted from the boiler, including the kit end, is 7 metres for the
model EV 35 HAM and 8 meters for the model EV 25 HAM. Each elbow of 90°, or two of 45°, reduces
theavailablelengthby1meterandeachhorizontal meteris equivalent to 2 vertical meters.
It is recommended that the pipe be fitted in a slightly upwardly-inclined direction, at around 2º - 3º,
topreventanywaterorcondensationfromdrippingout.
Horizontally-arranged outlet 1m ∅80/125inox
Cod. CGAS000189
Horizontally-arranged outlet 1m ∅80/125PP
Cod. CGAS000188
90ºcoaxial elbow∅80/125 inox
Cod.CGAS000182
90º coaxial elbow∅80/125 PP
Cod.CGAS000080
45º coaxial elbow ∅80/125 inox
Cod.CGAS000183
45º coaxial elbow∅80/125 PP
Cod.CGAS000081
1m coaxial duct ∅80/125inoxCod.CGAS000184
1m coaxial duct ∅80/125PPCod. CGAS000082
Examplesofinstallation:
L≤8 mts. (EV25 AC)
L≤7 mts. (EV35 AC)

11
4.6 Combustionproductsexhaustion and air intake vertically-arrangedcoaxialdevice
ø80-125 (type C33)
TheremovalofcombustionproductsandairintakecanbemadeusingconcentricØ80mmductsfor
the removal of combustion products and Ø125 mm ducts for the air intake, using the Ø80-125
verticalduct kit, code CGAS000181.
The maximum vertical length counted from the boiler, including the kit end, is 8 metres for the
modelEV 35HAM and 10metersfor themodel EV25HAM.Each elbowof90°, ortwo of45°, reduces
theavailablelengthby1meterandeachhorizontal meteris equivalent to 2 vertical meters.
Vertically outlet ∅80/125
inoxCód.CGAS000181
Vertically outlet ∅80/125
PP Cód.CGAS000360
Black tile ∅80/125
Cód. CGAS000074
45º elbow ∅80/125 inoxCód.CGAS000183
45º elbow ∅80/125PP Cód. CGAS000081
90º elbow ∅80/125 inox Cód. CGAS000182
90º elbow ∅80/125 PP Cód. CGAS000080
1m coaxial duct ∅80/125
inox Cód. CGAS000184
1m coaxial duct∅80/125 PP
Cód. CGAS000082
Black tile ∅80/125
Cód.CGAS000075
Examplesofinstallation:
L ≤10 mts. (EV25 AC)
L≤8 mts. (EV35 AC)

Evolution EV HAM
12
5 FILLING THE INSTALLATION
To fill the installation, open the fill valve (5) 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 (11) loose,tolettheair out of the installation. The air should also be bled from the restofthe
installationusingtheairbleedvalvesprovided.Whentheinstallationhasbeenfilled,closethefillvalve.
Evolution boilers have a pressure sensor (10) for controlling the pressure of the installation. If the
installationpressuredropsbelowaminimumof0.5bar,theboilerwillnotswitchonandalowpressure
alarmwillappearonthedisplay("AP").
NOTE: Switching on the boiler withno water inside could resultinseriousdamage.
6 DRAINING THE BOILER
The water is drained from the boiler by opening the air drain valve (1) 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 the valve again and remove the flexible tube.
7 SHUTTING DOWN THE BOILER
To switch off the boiler, place your finger on the power touch button (22) 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.
Toshutdowntheboiler functioning completely, unplug it from the mains and cut off the fuel supply.
8 FIRSTSTART-UP
For the guarantee to be valid, the boiler must be started up for the first time by an official DOMUSA
TEKNIKTechnical Assistance Service. Before beginning start-up,the following mustbecompliedwith:
-Theboilermustbeelectricallyconnectedto the mains.
-Theinstallation must be filledwithwater(1-1.5bar must be indicated on the digital display).
- Fuel must be reaching the burner at apressure of no more than 0.5 bar.
9 INSTALLATIONDELIVERY
After the initial start-up, the Technical Assistance Service will explain to the user how the boiler
functions, making any observationsthey consider relevant.
Theinstalleris responsibleforclearlyexplainingtotheuserthefunctioningofanycontrolorregulation
deviceformingpartofthe installation but not supplied with the boiler.

13
10 DIGITALDISPLAY
The Evolution boiler is electronic and includes a digital display (19) 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
touchingtheMODEbuttonbelowthe display, as follows:
MODEtouchbutton
Digitaldisplay
Press the set button successively to select the different display options. When the desired option has
beenselected,itwillreturntostandby after ten secondshaveelapsed.
Thefollowingtableshowsthedifferent display options:
Standby. The actual boiler temperature is shown.
Actual boiler temperature.
Actual Domestic Hot Water temperature.
Actual flow temperature of the underfloor heating
installation
(option SRAM2/EV only)
Boiler setpoint temperature selected using the
corresponding touch button
(20) .

Evolution EV HAM
14
Underfloor heating installation flow setpoint
temperature selected using the corresponding
touch button
(20) .
(option SRAM2/EV only)
DHW setpoint temperature selected using the
corresponding touch button
(24) .
Actual boiler pressure, measured by the Pressure
Sensor
(10) .
Indication of the heating demand status of each
circuit connected to the boiler.
Setpoint of the heating pump speed BC1.
The desired display contrast can be adjusted using
the touch button on the right of the display
(24) .

15
11 TEMPERATURESELECTION
11.1 Selectingtheboilersetpoint temperature

Thedesired boiler operating temperatureisselected using thetouchbutton, as shown inthefigure.
To select the desired temperature, touch the "+" or "-" symbols to increase or decrease the
temperature respectively. When the temperature has been selected, the display will return to
standby mode after a few seconds.
The boiler setpointtemperature can also beselected by using the MODE touch buttontobrowseto
the “ boiler setpoint temperature " display option. When the display shows this option, touch the "+
/-"symbolstoselectthedesiredtemperature.
If you wish to totally disable the boiler heating function ( Summer mode), select the setpoint value
"OFF"by touching the "-" symbol until this value appears on the display.
The permitted boiler setpoint temperature range is OFF and 30 - 85 ºC. Evolution model boilers are
condensing boilers. In order to obtain maximum boiler performance and energy savings, it is
therefore recommended to select a setpoint temperature of 55-70 ºC, providing thisis permitted by
theheatingsysteminstalledandtheinsulationconditionsofyourhome.
11.2 SelectingtheDHWsetpoint temperature

The desired DHW temperature is selected using the touch button, as shown in the figure. To select
the desired temperature, touch the "+" or "-" symbols to increase or decrease the temperature
respectively.When thetemperature hasbeenselected,the displaywillreturntostandby modeafter
a few seconds. The DHW setpoint temperature rangepermitted is OFF and 30 -65ºC.
The DHW setpoint temperature can also be selected by using the MODE touch button to browse to
the“ DHWsetpointtemperature "display option. Whenthisoption appears onthedisplay, touch the
"+ /-" symbols toselect the desired temperature.
Ifyou wish tototallydisable the boiler’sDHWproductionfunction, select thesetpointvalue"OFF"by
touching the "-" symbol untilthis value appears on the display.

Evolution EV HAM
16
11.3 SelectingtheUnderfloorHeating flow setpoint temperature (with SRAM2/EV kit option)

When the boiler is installed with the optional SRAM2/EV underfloor heating kit, the desired flow
temperatureoftheinstallationcan beselectedusingthetouchbutton asshowninthefigureabove.
To select the desired temperature, touch the "+" or "-" symbols to increase or decrease the
temperature respectively. When the temperature has been selected, the display will return to
standby mode after a few seconds.
The installation flow setpoint temperature can also be selected by using the MODE touch button to
browse to the “ underfloor heating installation flow setpoint " display option. When this option
appears on the display, touch the "+/-" symbols to select the desired temperature.
If you wish to disable the underfloor heating circuit function, select the setpoint value "OFF" by
touching the "-" symbol untilthis value appears on the display.
TheflowsetpointtemperaturerangepermittedisOFFand0-45ºC.Toobtainoptimumperformance
fromtheunderfloorheatingsysteminstalled,werecommendselectingasetpointtemperatureof25
-35ºC,providingthisis permitted bytheheating system installed andtheinsulation inyourhome.
12 OPERATION
The Evolution EV HAM boiler is designed to heat a heating installation and provide instantaneous
domestic hot water. Optionally, an Underfloor Heating Kit (SRAM2/EV) and/or a second heating circuit,
heatingcircuit2,maybeconnectedtotheinstallationtoimproveitsperformance.
12.1 HeatingFunction
In this mode, the boiler can heat up the heating installation. To do this, select the desired boiler
setpointtemperature(see" Selectingtheboilersetpointtemperature ")andthetemperatureofroom
thermostat1(TA1).Theburnerwillswitchon.Whentheboilerreaches60ºCitisreadytoheatupthe
heating installation and will start up the heating pump for this purpose. The burner will shut down
when the boiler reaches the adjusted setpoint temperature. The heating pump and the burner will
stopwhentheroomtemperature reaches or exceeds the temperature set on the installation’s room
thermostat (if it has one). If a hot tap is turned on, the instantaneous DHW production function will
startupandprovideconstantdomestichotwaterattheselectedDHWsetpointtemperature.
The boiler heating function can be totally disabled ( Summer mode) by selecting "OFF" as the boiler
setpointvalue.Inthisoperatingmode,onlytheinstantaneousDHWproductionfunctionwillremain
enabled.
NOTE: Whentheheatingfunctionis disabled, circuit 2 willalso be disabledifit is connected.

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12.2 DomesticHotWaterproduction function
Inthis mode, theboilerprovides instantaneous DHW.To activate this mode, selectthedesired DHW
setpoint temperature (see " Selecting the DHW setpoint temperature "). The burner will ignite until
theboilerreaches60ºC.Ifahottapisturnedon,theinstantaneousDHWproductionsystemwillstart
up and provideconstant hot water attheselectedsetpointtemperature.
The Evolution EV HAM boiler is equipped with system for modulating instantaneous DHW
productionandprogressive adjustment ofthe Domestic Hot Water consumption temperature:
- The modulation allows the boiler power to constantly adapt to the hot water consumption
requirements at all times, without altering the efficiency of the boiler. Consumption savings are
thusobtainedtogetherwithimproved boiler functioning and lower emissions.
- Progressive electronic adjustment of the DHW temperature, a system designed by DOMUSA
TEKNIK,enablestheDHWconsumptiontemperaturetobestabilisedatthetemperatureselected
usingthebuttonon thecontrolpanel,anda constant hotwatertemperature with no variations
is obtained regardless of the water flow requiredand the cold water inlet temperature atany
given time. This enables optimum hot water comfort and adaptation to each user’s particular
needs.
Ifyouwish,youmaytotallydisablethedomestichotwaterproductionfunctionbyselecting"OFF"as
theDHWsetpointtemperature.
12.3 FunctioningwithanSRAM2/EVUnderfloor Heating Kit (Optional)
The Evolution EV HAM boiler may be used with an SRAM2/EV Underfloor Heating Kit (fitted to
heating circuit 1). This kit basically consists of a motorised 3-way mixing valve, a circulation pump
and an underfloor heating installation flow temperature sensor. For correct hydraulic installation,
carefully follow the assembly and connection instructionsenclosedwiththekit.
The underfloor heating installation is worked by the electronic boiler control. The installation flow
sensor is used to adjust the temperature, selecting the installation flow setpoint temperature using
the boiler setpoint adjustment touch button on the control panel, between OFF, 0 and 45 ºC (see
“
SelectingtheUnderfloorHeatingflowsetpointtemperature ”).Inthisoperatingmode,theelectronic
controlsetstheboilersetpointtemperatureto75ºCbydefault,andtheinstallationflowtemperature
canbeadjustedtotheselectedsetpoint temperature using the mixing valve.
The boiler setpoint temperature can be changed using the MODE touch button to browse to the
“
boiler temperature setpoint " display option. When the display shows this option, touch the "+ /-"
symbolstoselectthedesiredtemperature.
If you wish, the SRAM2/EV Underfloor Heating circuit function can be totally disabled, by selecting
"OFF" as the installation flowsetpointtemperature.
NOTE: WhentheUnderfloorHeatingcircuitfunctionisdisabledbyselectingOFFasthesetpoint
temperature, only circuit 1 will bedisabled. Circuit 2 will continue to function.

Evolution EV HAM
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12.4 Heatingcircuit 2 functioning (Optional)
All the models in the Evolution EV HAM range of boilers have the option of controlling a second
heatingcircuit. This requires the installation of a second circulation pump on the boiler. To correctly
installthis pump,carefully followtheinstructionsgivenin the“ Installingheatingcircuit2 ”section of
thismanual.
Heating circuit 2 will work with the selected boiler setpoint temperature (see “ Selecting the boiler
setpoint temperature ” ) and the temperature of room thermostat 2 (TA2) (if the boiler has one). The
burner and the heating pump of circuit 2 (BC2) will begin to function until the installation reaches
the selected boiler setpoint temperature (or the temperature on room thermostat 2, if the unit has
one). When the temperature of the installation drops below the selected boiler temperature, the
burnerwillstartupagain,running the heating cycle.
NOTE: Whentheheatingfunctionis disabled,ifOFF is selected circuit 2 will also be disabled.
13 ADDITIONALFUNCTIONS
TheEvolutionEVHAMboilerisequippedwithanelectroniccontrolforefficientlyregulatingautomatic
boilerfunctioning.Italsohas the following additionalcontrolfeatures:
13.1 Pumpanti-block function
This function prevents the boiler circulation pumps from seizing up if they have been out of use for
alongperiod. This system remains enabled while the boilerispluggedintothemains.
13.2 Anti-frostfunction
This function protects the boiler from freezing up during cold weather. If the boiler temperature
drops to below 6 ºC, the heating circulation pump will start up. If the boiler temperature continues
to drop and reaches 4 ºC, the burner will start up, heating the installation. When this function has
beenactivated,itwillcontinueworkinguntiltheboilerreaches8ºC.Thissystemremainsonstandby
whiletheboilerisplugged into the mains.
13.3 Boilerpressuresensorfunction
This function prevents boiler failure caused by a lowwater level or excess pressure in theboiler.The
pressureisdetectedbyapressuresensor
(10) ,anditsvalueappearsonthecontrolpaneldisplay(see
“ Digitaldispla y”).Ifthepressuredropsbelow0.5bar,theelectroniccontrolblocksboilerfunctioning
and triggers the “AP” alarm on the display. If boiler pressure exceeds 2.5 bar, the "HI" warning will
flash on the display to warn of the excess pressure. If this should occur we recommend calling the
nearest Technical AssistanceService, and slightly drainingtheboiler.
13.4 Telephonerelayconnection
TheEvolutionboilerisdesignedtoenableaphonerelaytobeconnectedforswitchingtheboileron
andoff.Thisfeatureallowstheboilertobeswitchedonandoffremotely,fromanylocation,bymeans
of a phone call. The relay is connected to the boiler via terminal strip J6 (see “ Electrical Connection
Diagram ”).Whenthetelephonerelaycontactclosestheboilerswitcheson.Whenthecontactopens,
theboilerswitchesoffandremainsinanti-frost protection andpumpanti-blockmode.
13.5 Roomthermostatconnection
The boiler has two terminal strips, TA1and TA2, for connecting room thermostats or room
chronothermostats (J5 and J7, see " Electrical Connection Diagram ”). This allows the heating mode
for each circuit installed to be switched off according to the room temperature. To suitably connect
them, first remove the bridge joining the terminals of terminal strip TA1, and to connect TA2, simply
connectthethermostattotheterminalstrip.