DOMUSA TEKNIK EVOLUTION EV HFM, EVOLUTION EV HFC, evolution ev 25 hac, evolution ev 35 hac Installation And Operating Instructions Manual

INSTALLATION AND OPERATING INSTRUCTIONS

 EVOLUTION EV HFM

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 EV
HFM 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
proper and gas-oil fed hydraulic installation.

This manual forms an essential part of the product and it must be
given to the user. Read the warnings and recommendations in the
manual carefully, as they contain important information on the safety,
use and maintenance of the installation.

These boilers are to be installed by skilled personnel only, in
accordance with the legislation in force and following the
manufacturer’s instructions.

The start-up of these boilers and any maintenance operations must
only 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.

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
where the purchase was made.

1

INDEX Page

1 DESCRIPTION OF COMPONENTS.....................................................................................................................................................................................................................2

2 CONTROL ELEMENTS............................................................................................................................................................................................................................................3

3 INSTALLATION INSTRUCTIONS.........................................................................................................................................................................................................................4

3.1

LOCATION.................................................................................................................................................................................................................................................................4

3.2

HYDRAULIC INSTALLATION.....................................................................................................................................................................................................................................4

3.3

ELECTRICAL CONNECTION......................................................................................................................................................................................................................................4

3.4

FUEL INSTALLATION.................................................................................................................................................................................................................................................4

3.5

COMBUSTION PRODUCTS EXHAUSTION................................................................................................................................................................................................................5

3.6

INSTALLING THE SRFM2/EV UNDERFLOOR HEATING KIT (OPTIONAL)...........................................................................................................................................................7

3.7

INSTALLING HEATING CIRCUIT 2 (OPTIONAL).......................................................................................................................................................................................................7

4 COMBUSTION PRODUCTS EXHAUSTION......................................................................................................................................................................................................8

4.1

COMBUSTION PRODUCTS EXHAUSTION AND AIR INTAKE DUAL-DUCT DEVICE Ø80/ Ø100 (TYPR C

53

)........................................................................................................8

4.2

DOUBLE CONDUIT TO COAXIAL EXHAUSTION TRANSFORMATION (ONLY FOR EV 30 HFM).........................................................................................................................9

4.3

COMBUSTION PRODUCTS EXHAUSTION AND AIR INTAKE HORIZONTALLY-ARRANGED COAXIAL DEVICE Ø80-125 (TYPE C

13

) (ONLY FOR EV 30 HFM)...................10

4.4

COMBUSTION PRODUCTS EXHAUSTION AND AIR INTAKE VERTICALLY-ARRANGED COAXIAL DEVICE Ø80-125 (TYPE C

33

) (ONLY FOR EV 30 HFM).........................11

5 FILLING THE INSTALLATION............................................................................................................................................................................................................................12

6 DRAINING THE BOILER......................................................................................................................................................................................................................................12

7 SHUTTING DOWN THE BOILER.......................................................................................................................................................................................................................12

8 FIRST START-UP...................................................................................................................................................................................................................................................12

9 INSTALLATION DELIVERY.................................................................................................................................................................................................................................12

10 DIGITAL DISPLAY..............................................................................................................................................................................................................................................13

11 TEMPERATURE SELECTION...........................................................................................................................................................................................................................15

11.1

SELECTING THE BOILER SET POINT TEMPERATURE ..........................................................................................................................................................................................15

11.2

SELECTING THE DHW SETPOINT TEMPERATURE.............................................................................................................................................................................................15

11.3

SELECTING THE UNDERFLOOR HEATING FLOW SETPOINT TEMPERATURE (WITH SRFM2/EV KIT OPTION).............................................................................................16

12 OPERATION.........................................................................................................................................................................................................................................................17

12.1

HEATING FUNCTION ..........................................................................................................................................................................................................................................17

12.2

DOMESTIC HOT WATER PRODUCTION FUNCTION..........................................................................................................................................................................................17

12.3

FUNCTIONING WITH AN SRFM2/EV UNDERFLOOR HEATING KIT (OPTIONAL).........................................................................................................................................18

12.4

HEATING CIRCUIT 2 FUNCTIONING (OPTIONAL)..............................................................................................................................................................................................18

13 ADDITIONAL FUNCTIONS..............................................................................................................................................................................................................................19

13.1

PUMP ANTI-BLOCK FUNCTION ..........................................................................................................................................................................................................................19

13.2

ANTI-FROST FUNCTION......................................................................................................................................................................................................................................19

13.3

BOILER PRESSURE SENSOR FUNCTION..............................................................................................................................................................................................................19

13.4

TELEPHONE RELAY CONNECTION .....................................................................................................................................................................................................................19

13.5

ROOM THERMOSTAT CONNECTION..................................................................................................................................................................................................................19

13.6

KEYPAD BLOCK FUNCTION ................................................................................................................................................................................................................................20

14 E20 REMOTE CONTROL (OPTIONAL).........................................................................................................................................................................................................21

14.1

FUNCTIONING WITHOUT AN OUTDOOR SENSOR.............................................................................................................................................................................................21

14.2

FUNCTIONING WITH AN EXTERNAL SENSOR (OPTIONAL)..............................................................................................................................................................................22

14.3

DHW MODE FUNCTIONING..............................................................................................................................................................................................................................22

14.4

TELEPHONE RELAY FUNCTION...........................................................................................................................................................................................................................22

15 SAFETY CUT-OUTS...........................................................................................................................................................................................................................................23

15.1

TEMPERATURE SAFETY CUT-OUT......................................................................................................................................................................................................................23

15.2

BURNER CUT-OUT...............................................................................................................................................................................................................................................23

15.3

LOW PRESSURE CUT-OUT ..................................................................................................................................................................................................................................23

16 BOILER MAINTENANCE...................................................................................................................................................................................................................................24

16.1

CLEANING THE BOILER.......................................................................................................................................................................................................................................24

16.2

ANTI-FROST PROTECTION..................................................................................................................................................................................................................................25

16.3

BOILER WATER CHARACTERISTICS ....................................................................................................................................................................................................................25

17 CIRCULATING PUMPS FLOW CURVES.......................................................................................................................................................................................................26

17.1

CHARACTERISTIC CURVES OF THE PUMP..........................................................................................................................................................................................................26

17.2

REGULATION OF THE CIRCULATION PUMP.......................................................................................................................................................................................................26

17.3

PRESSURE DROP .................................................................................................................................................................................................................................................26

18 DIMENSIONS......................................................................................................................................................................................................................................................27

19 TECHNICAL DATA.............................................................................................................................................................................................................................................28

20 ALARM CODES...................................................................................................................................................................................................................................................29

21 ELECTRICAL CONNECTION DIAGRAM......................................................................................................................................................................................................30

22 ELECTRICAL DIAGRAM...................................................................................................................................................................................................................................31

23 BURNER................................................................................................................................................................................................................................................................32

23.1

ASSEMBLY...........................................................................................................................................................................................................................................................32

23.2

BURNER START-UP..............................................................................................................................................................................................................................................32

23.3

ADJUSTING THE COMBUSTION CONDITIONS...................................................................................................................................................................................................32

23.4

OIL PRESSURE ADJUSTMENT .............................................................................................................................................................................................................................34

23.5

OIL SUPPLY PIPING DIAGRAMS..........................................................................................................................................................................................................................34

23.6

TECHNICAL SPECIFICATIONS .............................................................................................................................................................................................................................35

23.7

OPERATING CURVES...........................................................................................................................................................................................................................................35

23.8

NOZZLES.............................................................................................................................................................................................................................................................35

23.9

ELECTRICAL CONNECTION DIAGRAM................................................................................................................................................................................................................36

23.10

QUICK CONNECTOR.........................................................................................................................................................................................................................................36

23.11

BURNER CONTROL OPERATING SEQUENCE ...................................................................................................................................................................................................37

24 FAILURES..............................................................................................................................................................................................................................................................38

25 SPARE PARTS LIST............................................................................................................................................................................................................................................40

26 WARRANTY CONDITIONS..............................................................................................................................................................................................................................43

Evolution EV HFM

2

1 DESCRIPTION OF COMPONENTS

123

4

5

6

7

8

9

10

11 12 13 10

15

14

16

17

1. Blowoff valve.

2. Filling valve.

3. DHW temperature sensor

4. Balance flue burner.

5. DHW exchanger.

6. Heating pump.

7. DHW pump.

8. Boiler temperature sensors.

9. Safety valve.

10. Automatic air vent.

11. Pressure sensor.

12. Expansion vessel.

13. Condensator INOX.

14. Flue gases outlet.

15. Cast iron corp.

16. DHW flow switch.

17. DHW flow limiter.

3

2 CONTROL ELEMENTS

19 21 2220 23

18

25 24

18. 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
the digital display.

19. 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.

20. MODE touch button:

When this button is touched the different boiler
temperatures appear on the digital display.

21. ON touch button:

If you place your finger on this button for 1
second the boiler will switch on or off.

22. RESET touch 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 the previous menu level.

23. DHW temperature touch button:

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
desired temperature, simply place your finger
on the "+" or "-" symbols on the touch button to
increase or decrease the desired DHW
temperature.

24. Boiler safety thermostat:

This is a cut-out mechanism to ensure the boiler
temperature does not exceed 110ºC.

25. Fume safety thermostat:

This safety thermostat operates when the
temperature of the combustion products
exceeds 110ºC, in order to protect the
polypropylene duct.

Evolution EV HFM

4

3 INSTALLATION INSTRUCTIONS

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
must be complied with when installing the boiler:

3.1 Location

The boiler must be installed in a sufficiently ventilated site. It is essential to leave a space at the
top of the boiler so that it is accessible for maintenance operations. It must therefore not be

installed under a fixed worktop or any other obstacle preventing access.

3.2 Hydraulic installation

The hydraulic installation must be made by qualified personnel. The applicable installation
legislation is to be complied with, and the following recommendations should also be taken into
account.

- The inside of the installation piping should be thoroughly cleaned before switching on the
boiler.

- We recommend inserting cut-off valves between the installation piping and the boiler to
simplify maintenance tasks.

- If a shut-off valve is fitted at the DHW inlet, it must have a safety valve incorporated, calibrated
to 9 bar.

- For correct boiler functioning, there must be a pressure of at least 0.5 bar in the domestic hot
water circuit.

- Before starting up the unit, it is essential to install the condensation siphon supplied with the
boiler documentation on the condensation drain tube on the back of the boiler.

- The condensation pipe should lead to a drain outlet, as the

Evolution boiler is a condensation boiler and a large amount
of water may be generated. This connection should be made in

accordance with the regulations for draining off condensation
water to the drain network.

- Fill the siphon with water before starting up the unit, to prevent
fumes coming out of it.

3.3 Electrical Connection

The boiler is equipped for connection at 230 V~, 50 Hz to terminals 1
and 2 of terminal strip J1 (see

Electrical Connection Diagram

). Remember to earth the appliance.

The boiler has two terminal strips, TA1 (J5) and TA2 (J7) 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
terminal strip.

3.4 Fuel installation

The Evolution boiler is supplied with a Domestic sealed oil burner

(4)

(see model in “Technical

Characteristics”). For the fuel installation, proceed in accordance with the burner instructions

5

enclosed with this manual (see “Burner” section). The oil line installation and start-up of the burner
must be carried out by qualified, authorised personnel.

3.5 Combustion products exhaustion

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.

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 is recommended that the
position at the exhaustion duct exterior portion should be in accordance with the data of the
following figures and table:

Position of the exhaustion duct

Minimum distance

mm

A under a cornice

300

B between two horizontally-arranged ducts

1000

C from a next window

400

D between two vertically-arranged ducts

1500

E from a next venting grid

600

F under a balcony (*)

300

G under a window

600

H under a venting grid

600

I from a break back of a building

300

J from an angle of a building

300

K from the floor level

2500

L from a vertically/horizontally-arranged outlet or pipe (**)

300

M from a front surface at a distance of 3 metres from the exhaust gas outlet

2000

N like the previous one, but with opening

3000

(*) In so far the balcony width does not exceed 2000 mm.
(**) If the pipe constructive materials were sensitive to the action from the flue gases, this distance should be longer

than 500 mm.

ATTENTION: All the fittings used in the combustion products exhaustion and air intake are to be those supplied

by DOMUSA TEKNIK firm.

Evolution EV HFM

6

7

3.6 Installing the SRFM2/EV Underfloor Heating Kit (Optional)
The procedure for suitably connecting the SRFM2/EV Underfloor Heating Kit to the Evolution EV

HFM boiler is as follows:

- 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").

- Fit the temperature sensor bulb according to the instructions enclosed with the kit.

- Connect the heating pump to supply terminal strip J2 on the circuit 1 pump connection (pump
BC

1

; terminals N and 7) (see “Electrical Connection Diagram").

- Connect the pump´s PWM

C

cable to sensor terminal strip J3 (terminals 13 and 14) (see

“Electrical Connection Diagram").

- Connect the 3-way mixer valve motor to supply terminal strip J2 (terminals N, 8 (+) and 9 (-))
(see “Electrical Connection Diagram").

For correct hydraulic installation, carefully follow the assembly and connection instructions
enclosed with the SRFM2/EV kit.

3.7 Installing heating circuit 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
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') on
the rear of the boiler (see "Diagrams and Measurements"). If there is an SRFM2/EV underfloor
heating kit connected to the optional flow IC', heating circuit 2 should be connected at the
additional sockets provided in the kit (on the boiler T-connectors).

The circulation pump installed in heating circuit 2 must be electrically connected between
terminals N and 6 on the supply connector block J2 (see "Connection Diagram").

Evolution EV HFM

8

4 COMBUSTION PRODUCTS EXHAUSTION

4.1 Combustion products exhaustion and air intake dual-duct device ø80/ ø100 (typr C53)

In this type, the combustion products exhaustion and air intake are carried out with separated
pipes of ø80/100mm., by means of the dual-duct outlet Kits of ø80/100 code CGAS000265. It is the
default type of exhaustion for boilers Evolution.

The maximum length of pipe that can be installed is 12 metres (EV 40 HFM) and 15 metres (EV 30
HFM), 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 available length by
1 metre and 1 metre in horizontal, reduces the available length by 2 metres.

It is recommended that the flue gases outlet pipe be fitted slightly upwardly-inclined 2º to 3º thus
preventing water and condensate projections from being ejected outside.

Dual-duct outl et Ki t 80/100 inox

Co d. CG AS000265

1m. du ct 80 inox. Cod. CGAS000145

1m. duct 100 ino x. Co d. CGAS000268

1m. duct 100 PP Cod . CGA S000355

90º elbo w 80 inox Cod . CGA S000147

90º elbow 100 ino x Cod . CGAS000267

90º elbow 100 PP Cod. CGAS000358

45º elbow 80 inox. Cod . C GAS000148

45º el bow 100 in ox. Co d. CGA S000266

45º elbow 100 PP Cod. CGAS000357

Examples of installation:

L  12 mts. (EV 30 FM)
L  12 mts. (EV 40 FM)

9

4.2 Double conduit to coaxial exhaustion transformation (Only for EV 30 HFM)

The boiler Evolution is given prepared for the exhaustion of the products of combustion and air
intake by means of the system of double conduit of Ø80. When you want to carry out the
exhaustion of combustion gases by means of coaxial tube of Ø80/125, you will use for it a Kit
adaptor for coaxial tube Ø80/125 (given under order) Code CGAS000213 +Cód. CGAS000222.

Kit adaptor for coaxial tube 80/125

Cod . CGAS000213+ Cod. CGAS000222

The transformation will be able to realize with two different mounting 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 of flue gases of the boiler backwards
and using the flexible tube of entry of air, connect it to the adaptor.

2. Lateral or upwards exit: it will be realized in the same way, but to mount the adaptor kit
laterally it is necessary to mount an elbow of 90º Ø80 (code CGAS000147), before the adaptor
in the exit of flue gases.

In the following pictures they can observe both setups:

Combu sti o n air i ntake

Bac k e xi t

Lateral exit

90º elbow Ø80

Evolution EV HFM

10

4.3 Combustion products exhaustion and air intake horizontally-arranged coaxial device
ø80-125 (type C13) (Only for EV 30 HFM)

The combustion products exhaustion and air intake can be carried out through concentric pipes of
Ø80 mm. for the combustion products exhaustion and Ø125 mm. for the air intake by means of the
horizontally-arranged outlet Kit 1m Ø80-125 code CGAS000189.

The maximum horizontal length counted from the boiler, including the kit end, is 6 metres. Each
elbow of 90°, or two of 45°, reduces the available length by 1 metre.

It is recommended that the flue gases outlet pipe be fitted slightly upwardly-inclined 2º to 3º thus
preventing water and condensate projections from being ejected outside.

Horizontally-arranged out l et 1m 80/125

Cod. CGAS000189

90º coaxial elbow 80/125

Cod. CGAS000182

45º coaxial elbow 80/125

Cod. CGAS000183

1m coaxial duct 80/125

Cod. CGAS000184

Examples of installation:

L  6 mts. (EV 30 FM)

11

4.4 Combustion products exhaustion and air intake vertically-arranged coaxial device
ø80-125 (type C33) (Only for EV 30 HFM)

The combustion products exhaustion and air intake can be carried out through concentric pipes of
Ø80 mm. for the combustion products exhaustion and Ø125 mm. for the air intake, by means of the
vertically-arranged outlet Kit Ø80-125 code CGAS000231.

The maximum vertical length counted from the boiler, including the kit end, is 7 metres. Each
elbow of 90°, or two of 45°, reduces the available length by 1 metre.

Vertically outlet 80/125

Cód. CGAS000231

Black tile 80/125
Cód. CGAS 000 07 4

45º elbow 80/125

Cód. CGAS000183

90º elbow 80/125

Cód. CGAS000182

1m coaxial duct 80/125

Cód. CGAS 000 18 4

Black tile 80/125
Cód. CGAS 000075

Examples of installation:

L  7 mts. (EV 30 FM)

Evolution EV HFM

12

5 FILLING THE INSTALLATION

To fill the installation, open the fill valve

(2)

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

(10)

loose, to let the air out of the installation. The air should also be bled from the rest of the
installation using the air bleed valves provided. When the installation has been filled, close the fill
valve.

Evolution boilers have a pressure sensor

(11)

for controlling the pressure of the installation. If the
installation pressure drops below a minimum of 0.5 bar, the boiler will not switch on and a low
pressure alarm will appear on the display ("AP").

NOTE: Switching on the boiler with no water inside could result in serious damage.

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

(21)

for 1 second. In Off mode,
while the boiler is plugged into the mains and connected to the fuel installation, its heating and hot
water functions will be switched off but the anti-frost protection and pump anti-block functions will
remain activated.

To shut down the boiler functioning completely, unplug it from the mains and cut off the fuel supply.

8 FIRST START-UP

For the guarantee to be valid, the boiler must be started up for the first time by an official DOMUSA
TEKNIK Technical Assistance Service. Before beginning start-up, the following must be complied with:

- The boiler must be electrically connected to the mains.

- The installation must be filled with water (1 - 1.5 bar must be indicated on the digital display).

- Fuel must be reaching the burner at a pressure of no more than 0.5 bar.

9 INSTALLATION DELIVERY

After the initial start-up, the Technical Assistance Service will explain to the user how the boiler
functions, making any observations they consider relevant.

The installer is responsible for clearly explaining to the user the functioning of any control or
regulation device forming part of the installation but not supplied with the boiler.

13

10 DIGITAL DISPLAY

The Evolution boiler is electronic and includes a digital display

(18)

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
touching the MODE button below the display, as follows:

MODE tou ch bu tto n

Digital display

Repeatedly place your finger on the MODE touch button to select the different display options. When
the desired option has been selected, it will return to standby after 20 seconds have elapsed.

The following table shows the different 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 SRFM2/EV only)

Boiler setpoint temperature selected using the
corresponding touch button

(19)

.

Evolution EV HFM

14

Underfloor heating installation flow setpoint
temperature selected using the corresponding
touch button

(19)

.

(option SRFM2/EV only)

DHW setpoint temperature selected using the
corresponding touch button

(23)

.

Actual boiler pressure, measured by the Pressure
Sensor

(11)

.

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

(23)

.

15

11 TEMPERATURE SELECTION

11.1 Selecting the boiler set point temperature



The desired boiler operating 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 the temperature has been selected, the display will return to
standby mode after a few seconds.

The boiler setpoint temperature can also be selected by using the MODE touch button to browse to
the “

boiler setpoint temperature"

display option. When the display shows this option, touch the "+

/-" symbols to select the desired temperature.
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 this is permitted by
the heating system installed and the insulation conditions of your home.

11.2 Selecting the DHW setpoint 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 the temperature has been selected, the display will return to standby mode
after a few seconds. The DHW setpoint temperature range permitted is OFF and 30 - 65 ºC.

The DHW setpoint temperature can also be selected by using the MODE touch button to browse to
the “

DHW setpoint temperature

" display option. When this option appears on the display, touch

the "+ /-" symbols to select the desired temperature.
If you wish to totally disable the boiler’s DHW production function, select the setpoint value "OFF"

by touching the "-" symbol until this value appears on the display.

Evolution EV HFM

16

11.3 Selecting the Underfloor Heating flow setpoint temperature (with SRFM2/EV kit option)



When the boiler is installed with the optional SRFM2/EV underfloor heating kit, the desired flow
temperature of the installation can be selected using the touch button as shown in the figure
above. 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 until this value appears on the display.
The flow setpoint temperature range permitted is OFF and 0 - 45ºC. To obtain optimum

performance from the underfloor heating system installed, we recommend selecting a setpoint
temperature of 25 - 35 ºC, providing this is permitted by the heating system installed and the
insulation in your home.

17

12 OPERATION

The Evolution EV HFM boiler is designed to heat a heating installation and provide instantaneous
domestic hot water. Optionally, an Underfloor Heating Kit (SRFM2/EV) and/or a second heating circuit,
heating circuit 2, may be connected to the installation to improve its performance.

12.1 Heating Function

In this mode, the boiler can heat up the heating installation. To do this, select the desired boiler
setpoint temperature (see

"Selecting the boiler setpoint temperature"

) and the temperature of
room thermostat 1 (TA1) or remote control E20 (if the boiler is equipped with these). The burner
will switch on. When the boiler reaches 60ºC it is ready to heat up the 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 stop when the room
temperature 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 start up and provide
constant domestic hot water at the selected DHW setpoint temperature.

The boiler heating function can be totally disabled (

Summer

mode) by selecting "OFF" as the boiler
setpoint value. In this operating mode, only the instantaneous DHW production function
will remain enabled. NOTE: When the heating function is disabled, circuit 2 will also

be disabled if it is connected.

12.2 Domestic Hot Water production function

In this mode, the boiler provides instantaneous DHW. To activate this mode, select the desired
DHW setpoint temperature (see

"Selecting the DHW setpoint temperature"

). The burner will ignite
until the boiler reaches 60 ºC. If a hot tap is turned on, the instantaneous DHW production system
will start up and provide constant hot water at the selected setpoint temperature.

The Evolution EV HFM boiler is equipped with system for modulating instantaneous DHW
production and progressive adjustment of the 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 thus obtained together with improved boiler functioning and lower emissions.

- Progressive electronic adjustment of the DHW temperature, a system designed by DOMUSA

TEKNIK, enables the DHW consumption temperature to be stabilised at the temperature
selected using the button on the control panel, and a constant hot water temperature with
no variations is obtained regardless of the water flow required and the cold water inlet
temperature at any given time. This enables optimum hot water comfort and adaptation to

each user’s particular needs.

If you wish, you may totally disable the Domestic Hot Water production function by selecting "OFF"
as the DHW setpoint temperature.

Evolution EV HFM

18

12.3 Functioning with an SRFM2/EV Underfloor Heating Kit (Optional)

The Evolution EV HFM boiler may be used with an SRFM2/EV Underfloor Heating Kit (fitted to
heating circuit 1). This kit basically consists of a motorised 3-way mixing valve, a circulating pump
and an underfloor heating installation flow temperature sensor. For correct hydraulic installation,
carefully follow the assembly and connection instructions enclosed with the kit.

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

“Selecting the Underfloor Heating flow setpoint temperature

”). In this operating mode, the
electronic control sets the boiler setpoint temperature to 75ºC by default, and the installation flow
temperature can be adjusted to the selected setpoint 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 "+ /-"

symbols to select the desired temperature.
If you wish, the SRFM2/EV Underfloor Heating circuit function can be totally disabled, by selecting

"OFF" as the installation flow setpoint temperature.

NOTE: When the Underfloor Heating circuit function is disabled by selecting OFF as the

setpoint temperature, only circuit 1 will be disabled. Circuit 2 will continue to function.

12.4 Heating circuit 2 functioning (optional)

All the models in the Evolution EV HFM range of boilers have the option of controlling a second
heating circuit. This requires the installation of a second circulation pump on the boiler. To correctly
install this pump, carefully follow the instructions given in the “

Installing heating circuit 2

” section

of this manual.
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 (BC

2

) 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
burner will start up again, running the heating cycle.

NOTE: When the heating function is disabled, if OFF is selected circuit 2 will also be disabled.

19

13 ADDITIONAL FUNCTIONS

The Evolution EV HFM boiler is equipped with an electronic control for efficiently regulating automatic
boiler functioning. It also has the following additional control features:

13.1 Pump anti-block function

This function prevents the boiler circulation pumps from seizing up if they have been out of use for
a long period. This system remains enabled while the boiler is plugged into the mains.

13.2 Anti-frost function

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
been activated, it will continue working until the boiler reaches 8 ºC. This system remains on
standby while the boiler is plugged into the mains.

13.3 Boiler pressure sensor function

This function prevents boiler failure caused by a low water level or excess pressure in the boiler. The
pressure is detected by a pressure sensor

(11)

, and its value appears on the control panel display
(see

“Digital display”).

If the pressure drops below 0.5 bar, the electronic control blocks boiler
functioning 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 Assistance Service, and slightly draining the boiler.

13.4 Telephone relay connection

The Evolution boiler is designed to enable a phone relay to be connected for switching the boiler
on and off. This feature allows the boiler to be switched on and off remotely, from any location, by
means of a phone call. The relay is connected to the boiler via terminal strip J6 (see “

Electrical

Connection Diagram

”). When the telephone relay contact closes the boiler switches on. When the
contact opens, the boiler switches off and remains in anti-frost protection and pump anti-block
mode.

13.5 Room thermostat connection

The boiler has two terminal strips, TA1 and 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
connect the thermostat to the terminal strip.

Installing a room thermostat will optimise the installation’s performance, adapting the heating to
the requirements of your home and obtaining enhanced comfort. Also, if the thermostat allows the
hours of functioning to be programmed (chronothermostat), it can adapt the heating system to the
hours of use of the installation.

Evolution EV HFM

20

13.6 Keypad block function

This function protects the control panel from being accidentally or erroneously pressed while it is
being cleaned, by children or by unauthorised persons. When this function is enabled, the
electronic control will not react when any of the symbols or touch buttons on the control panel are
pressed.

To lock the keypad, keep your finger on the RESET touch button
for 5 seconds. The word "LOC" will flash on the display until the
control panel is unlocked again.

To unlock the keypad, place your finger on the RESET touch
button again for 5 seconds. The display will then return to its
normal status.

21

14 E20 REMOTE CONTROL (OPTIONAL)

A remote control (E20) may optionally be supplied together with the Evolution EV HFM boiler. This
remote control can be used to fully operate the boiler from any room in the home it is installed in. The
E20 remote control governs the settings of heating circuit 1 and the installation’s domestic hot water
production (where the case may be).

This remote control allows the hours of home comfort to be programmed for heating circuit 1,
adjusting the installation to the particular requirements of the home by measuring the room
temperature and consequently adapting the installation temperature. The remote control can also be
used to adjust the DHW and heating setpoint temperatures at any time, and for viewing the different
boiler operation settings. It also warns of any functioning anomalies affecting the boiler.

The E20 remote control may optionally be connected to an external sensor, for measuring the outside
temperature. When this option is installed, the remote control can adjust the home comfort level
(circuit 1) according to the weather conditions at each particular time, optimising fuel consumption
and heating comfort in the home.

The E20 remote control takes over the control of the boiler when it is connected to it. The different
selectable boiler temperatures must be modified using the remote control. It is easy to install, only
requiring 2 wires for communication between the boiler and the E20 control. It is connected to the
boiler by connecting the two wires on terminal strip J4 (see “

Electrical Connection Diagram

”). For

correct installation and functioning, carefully read the instructions enclosed with the remote control.
The following sections contain a general explanation of the E20 remote control’s different operating

modes and options.

14.1 Functioning without an outdoor sensor
Conventional heating installation (direct circuit)

The maximum temperature for heating circuit 1, the scheduled heating times and the desired
room temperatures can be selected on the remote control. The E20 remote control will calculate
the boiler temperature required at each particular time, depending on the temperature of the
room, and it will activate or disable the heating mode of circuit 1 depending on the heating
times and room temperatures programmed.

Installing heating with an SRFM2/EV underfloor heating kit (mixed circuit)

If the boiler has an SRFM2/EV Underfloor Heating Kit installed on circuit 1, the underfloor heating
circuit is adjusted and controlled from the boiler control panel (see

"Functioning with an

underfloor heating kit"

).

The E20 remote control can be used to programme the desired heating times and room
temperatures.

Evolution EV HFM

22

14.2 Functioning with an external sensor (Optional)

If the E20 remote control is fitted with an outdoor temperature sensor, it can calculate the heating
temperature of heating circuit 1 according to the outside weather conditions at each particular
time, with optimum adjustment of the heating installation conditions for improved comfort in the
home and energy savings.

Conventional heating installation (direct circuit)

The maximum temperature, an operating curve for heating circuit 1 (see instructions enclosed
with the E20 remote control) and the desired heating times and room temperatures can all be
selected on the remote control. The E20 remote control calculates the required boiler
temperature at each particular time, depending on the temperature inside the home and the
outside weather conditions, in accordance with the operating curve selected (setting
HEATSLOPE 1 on the E20), switching the heating on and off in accordance with the heating times
and the room temperatures programmed.

Heating installation with an SRFM2/EV underfloor heating kit (mixed circuit)

If the boiler has an SRFM2/EV underfloor heating kit installed on circuit 1 and the control of this
kit is activated on the E20 remote control using the HEATSLOPE 2 setting (see instructions
enclosed with the E20 remote control), the adjustment and control of the underfloor heating
circuit flow temperature will be performed by the remote control. The E20 will calculate the
required flow temperature at each particular time, depending on the temperature inside the
home and the outside weather conditions, in accordance with the operating curve selected (the
HEATSLOPE 2 setting on the E20 remote control). For mixed underfloor heating circuits, we
recommend selecting operating curves of less than 0.8.

The boiler setpoint temperature will be fixed at 75ºC and can be changed using the boiler
control panel. This setpoint temperature can be changed by using the MODE touch button to
browse to the “

boiler temperature setpoint

" display option. When the display shows this option,

touch the "+ /-" symbols to select the desired temperature.
The E20 remote control can also be used to select the maximum flow temperature for heating

circuit 1 and to programme the desired heating times and room temperature. The E20 remote
control will switch the heating function of this circuit on and off in accordance with the heating
times and room temperatures programmed.

NOTE: For mixed underfloor heating circuits, we recommend selecting a maximum flow

temperature NO HIGHER THAN 45 ºC, to protect the underfloor heating installation from
overheating.

14.3 DHW mode functioning

The remote control can be used to select the DHW setpoint temperature and the desired DHW
production times. The E20 remote control regulates the instantaneous hot water temperature at
each particular time and enables or disables DHW mode in accordance with the times
programmed.

14.4 Telephone relay function

The E20 remote control is designed for connection to an external telephone relay. If a telephone
relay is connected to the E20 remote control, the heating mode of heating circuit 1 and the DHW
mode can be switched on and off from anywhere in the world, simply by making a telephone call
(see instructions enclosed with the E20 remote control).

23

15 SAFETY CUT-OUTS

The boiler’s electronic control system may activate the following safety cut-outs to stop the boiler
functioning. When one of these safety cut-outs occurs, the boiler will stop functioning, a cut-out code
will flash on the display and the red alarm warning pilot light will flash on the control panel.

If any of the safety cut-outs described below should occur repeatedly, switch off the boiler and
call your nearest official technical assistance service.

15.1 Temperature safety cut-out

When this cut-out occurs, the alarm code "EAt" (temperature
alarm) will begin to flash on the digital display

(18)

. The burner

will switch off and stop heating the installation.

This occurs when the boiler exceeds a temperature of 110 ºC.
To unblock it, wait until the boiler drops to below 100 ºC and press the button on the safety
thermostat, located inside the boiler on the underside of the electrical box, after first having
removed the button cover.

15.2 Burner cut-out

When this cut-out occurs, the alarm code "EAQ" (burner alarm)
will begin to flash on the digital display

(18)

. The burner will

switch off and stop heating the installation.

This occurs as a result of an anomaly in the burner

(4)

or in the

fuel installation. To unblock it, press the illuminated button that lights up on the burner.

15.3 Low pressure cut-out

When this cut-out occurs, the alarm code "EAP" (pressure
alarm) will begin to flash on the digital display

(18)

. The burner
and the boiler circulation pumps will switch off, cutting off the
heating and water flow to the installation.

This occurs when the boiler pressure drops to below 0.5 bar,
preventing the boiler from functioning when the water is drained from the installation, due to
either leakage or maintenance operations. To unlock it, fill the installation again until a pressure of 1

- 1.5 bar appears on the “

boiler pressure

” setting on the display

(18)

.

Evolution EV HFM

24

16 BOILER MAINTENANCE

To maintain the boiler in perfect working order, a yearly overhaul should be performed by DOMUSA
TEKNIK’s authorised personnel.

16.1 Cleaning the boiler

To keep the boiler in perfect working order, we recommend cleaning the boiler chamber,
exhaustion ducts and condenser on a yearly basis. A cleaning brush of a suitable size for cleaning
the inside of the exhaustion ducts is supplied with the boiler for this purpose. This brush is located
at the rear of the boiler, beside the condenser.

The combustion chamber and exhaustion ducts should not be cleaned using chemical products
or hard steel brushes. After any cleaning operation has been carried out, it is important to run

several ignition cycles to check all the elements are functioning correctly.
For correct cleaning, the following recommendations should be carefully observed:

Cleaning the boiler body

- Open and remove the outer door of the boiler.

- Remove the burner

(4)

by unscrewing the fixing nut on the top of the burner.

- Remove the combustion chamber door and the exhaustion duct cover, unscrewing the six
fixing nuts beside them.

- Clean the exhaustion ducts on the cast iron body, using the cleaning brush supplied with the
boiler.

- Clean the boiler combustion chamber. We recommend using a soft brush for scraping the
combustion chamber surfaces, and a blower to remove scale.

- After cleaning, replace the combustion chamber door, the exhaustion duct cover, the burner
and the outer door of the boiler.

Cleaning the condenser

- Open and remove the top cover of the boiler to access the condenser on the rear of the boiler
body.

- Open the top cover of the condenser (1) to access its exhaustion ducts. To open this cover,
firstly release the two side closures (7), turn the locking plate (2) anti-clockwise and pull the
cover upwards to remove it.

- Remove the fume deflectors (6) inside the fume outlets.

- Clean the exhaustion ducts using the cleaning brush supplied with the boiler. Scale could fall
out of the lower condenser cover and come out of the condensation drain, and it is therefore
recommendable to pour water into the top of the condenser, for more effective cleaning. This
water will be automatically discharged through the condensation drain.

- To clean the outer part of the condenser cylinder, remove the three screws (3) and then remove
the metal ring (4). Take out the seal (5) and use the brush to clean it. Then put the components
back in place again and replace and tighten the three screws and the metal ring.

- If the lower condenser cover (9) needs cleaning, remove the side cover of the boiler to access it.
Firstly remove the bracket (8) holding it in place and pull on it to open it. Then pull the lower
cover down to open and clean it.

- After cleaning, replace the fume deflectors, the top condenser cover and the top outer cover of
the boiler. Then put the cleaning brush back inside the boiler.

25

- The condensation siphon should be cleaned once a year. To do this, remove it and wash it in
soapy water. Replace the siphon after cleaning.

Cleaning brush

1

2

3
4

5
6

7

8

9

16.2 Anti-frost protection

The Evolution boiler has a function for preventing frost damage to the installation. This will
function as long as the appliance remains plugged into the mains. Despite this function, and
particularly in areas with very cold weather, we recommend taking precautions in order to prevent
damage to the boiler. It is advisable to add anti-freeze to the water in the heating circuit. If the
boiler is to be out of use for long periods of time, we recommend draining all the water and leaving
it empty.

16.3 Boiler water characteristics

In areas with water hardness of over 25-30ºF, treated water must be used in the heating installation
to avoid any scale deposits on the boiler. It should be noted that even a few millimetres of scale will
greatly reduce the boiler’s heat conductivity, causing a major drop in performance.

Treated water must be used in the heating circuit in the following cases:

- Very large circuits (containing a large amount of water).

- Frequent filling of the installation.

If repeated partial or total draining of the installation is necessary, we recommend filling it with
treated water.

Evolution EV HFM

26

17 CIRCULATING PUMPS FLOW CURVES

The hydrodriving pressure available in the installation at the boiler output can be deduced from the
following graphs, having taken the boiler pressure drop into account.

17.1 Characteristic curves of the pump

17.2 Regulation of the circulation pump

To regulate the speed of the circulation pump BC1 you should
navigate to the "UB" parameter by touching MODE button and

touch ON button (21) to access it. Once inside the setting, using
the jog dial on the right side of the display (23) the value
changes. After selecting the desired speed, touch the ON touch

button to record the value and exit the parameter "UB".
WARNING: Any interference in the operation and installation of the heating circuit must be done

by authorised personnel, always respecting current legislation and installation safety
standards, both national and local level.

17.3 Pressure drop
Evolution 30 HFC: Evolution 40 HFC:

27

18 DIMENSIONS

IC: Heating outlet.
RC: Heating return.
EAS: DHW inlet.

IAS: DHW outlet.

MODEL

IC

RC

EAS

IAS

DIM.

L

VS: Safety valve. EV 30 HFM

3/4"M 855

SC: Condensate drainage, 1" H. EV 40 HFM

1"M

1/2"M

955

EA: Combustion air inlet, Ø80.
SH: Flue gases outlet.

Evolution EV HFM

28

19 TECHNICAL DATA

EVOLUTION HFM EV 30 HFM EV40 HFM

Condensation

Boiler type -

combi

Rated heat output

P

rated

kW 30 40

Useful heat output

P4 kW 28,7 38,7

Useful heat output (30%)

P1 kW 8,5 12,4

Seasonal space heating energy efficiency

Ƞ

S

% 91 92

% (PCI) 97,96 97,29

Useful efficiency

Ƞ

4

% (PCS) 92,38 91,74

% (PCI) 103,45 104,15

Useful efficiency (30%)

Ƞ

1

% (PCS) 97,55 98,21

Auxiliary electricity consumption at full load

el

max

kW 0,226

Auxiliary electricity consumption at part load

el

min

kW 0,078

Auxiliary electricity consumption in standby mode

PSB kW 0,001

Standby heat loss

P

stby

kW 0,135 0,17

Emissions of nitrogen oxides

NOx mg/kWh 118 119

Declared load profile

- XL XL

Water heating energy efficiency

Ƞ

wh

% 80 80

Daily electricity consumption

Q

elec

kWh 0,337 0,296

Daily fuel consumption

Q

fuel

kWh 24,110 24,630

DHW Production ∆t = 30ºC

l/min. 12,8 17,8

Heating temperature adjustment

ºC OFF, 30-85

DHW temperature adjustment

ºC OFF, 15-65

Maximum safety temperature

ºC 110

Maximum pressure for heating mode

bar 3

Heating expansion vessel capacity

Lts 8 12

Heating water volume

Lts 19,2 23,2

Water pressure drop

mbar 163 272

Fume temperature

ºC 67 83

Volume on fume side

m3 0,114 0,175

Maximum fume flow

Kg/s 0,0132 0,0186

Fume pressure drop

mbar 0,20 0,21

Combustion chamber length

mm 300 400

Combustion chamber type -

wet, three smoke steps

Burner adjustment type

- ON/OFF

Electrical supply

- ~220-230 V - 50 Hz - 200 W

Gross weight

Kg 160 190

29

20 ALARM CODES

The boiler Evolution EV HFM is equipped by an electronic circuit able to sense, by means of a
continuing autotest, the operation lockouts and alarms of the boiler. When the electronic control
senses an operation error, indicates it showing an alarm code in the screen of the display. In the
following list the possible alarm codes are described:

CODE ALARM DESCRIPTION

Pressure

The pressure in the installation has dropped to below 0.5 bar.
The boiler will cut out. To unblock it, fill the installation at a
pressure of 1 - 1.5 bar.
This alarm may be set off due to the water having been
drained from the boiler or leakage in the installation.
If this alarm occurs repeatedly, you should contact the nearest
official technical assistance service.

Temperature

The boiler has exceeded the safety temperature of 110 ºC. The
boiler will cut out. To unblock it, press the safety thermostat
button when the temperature has dropped.
If this alarm occurs repeatedly, you should contact the nearest
official technical assistance service.

Burner

The burner has cut out. To unblock it, press the illuminated
button on the burner

(4)

.
This alarm is set off when there is a functioning anomaly in the
burner or the fuel installation.
If this alarm occurs repeatedly, you should contact the nearest
official technical assistance service.

Boiler sensor

The boiler sensor

(8)

is damaged or disconnected. Contact
your nearest official technical assistance service to have it
replaced.

DHW sensor.

The DHW sensor is damaged or disconnected. Contact your
nearest official technical assistance service to have it replaced.

SRFM2/EV flow sensor
(only with SRFM2/EV kit)

The underfloor heating sensor is damaged or disconnected.
Contact your nearest official technical assistance service to
have it replaced.

Pressure sensor

The pressure sensor

(11)

is damaged or disconnected. Contact
your nearest official technical assistance service to have it
replaced.

Overpressure

This indicates that the water pressure in the boiler is over 2.5
bar, warning that the installation is in overpressure status.
Boiler functioning will NOT cut out.
To restore normal boiler functioning, drain the boiler until it
reaches a pressure of 1 – 1.5 bar.
If this warning occurs repeatedly, you should contact the
nearest official technical assistance service.

NOTE: It will be very useful for the technical assistance service if you can inform them of the alarm

code that has appeared on call-out.

Evolution EV HFM

30

21 ELECTRICAL CONNECTION DIAGRAM

There are a series of removable copnnectors located on the rear of the control panel, for connecting
the various options and components for this model. For correct connection, carefully follow the
indications shown below:

1 86543NNN 7

J1J2

J4

N F

Q

J5

T

A

1

E20

BV

2

220 V

J7

T

A

2

c7

Black

Blue

Blue

Blue

Brown

BC

2

BC

1

M

J6

1918171615

J3

Sc

Blue

SaRr

Blue

PWM

c

Blue

141312

PWM

a

9

(+)

(-)

Ph: Phase.
N: Neutral.
bc7: Burner terminal n. 7.
Q: Burner.
BV: DHW charge pump.
BC

1

: Heating circuit N. 1 circulating pump.

BC2: Heating circuit N. 2 circulating pump.
M: Underfloor 3 way valve motor.
E20: Remote control E20 (optional).
TA

1

: Heating circuit N. 1 room thermostat.

TA

2

: Heating circuit N. 1 room thermostat.

PWM

a

: DHW PWM cable.

PWMc: Heating PWM cable.

Rr: Underfloor heating option resistance.
Sa: DHW temperature sensor.
Sc: Boiler temperature sensor.
J1: Power supply connector.
J2: Components connector.
J3: Sensor connector.
J4: Remote control connector.
J5: Room thermostat N. 1 connector.
J6: Telephone relay connector.
J7: Room thermostat N. 2 connector.

31

22 ELECTRICAL DIAGRAM

Red

Red

12

3

J6

SP

Power supply card

J8

R

Display Card

J8

S2

ON

1234

ON

S1

12

Brown

Blue

FL

T

H

C

2

1

Blac

k

White

Pin

k

T

S

C

2

1

Black

Red

Pink

TS: Security thermostat.
TH: Fumes thermostat.
SP: Pressure sensor.
R: Phone relay.
FL: DHW flow switch.

J6: Phone relay connector.
J8: PCB's connector.
S1: Boiler model selection switches.
S2: Floor heating selection switches.

Evolution EV HFM

32

23 BURNER

23.1 Assembly

Fix the burner support to the boiler, then fix the burner to the support. This will allow the correct tilt
of the flame tube towards the combustion chamber. Fit the intake and return tubes, inserting the
oil filter in the intake tube.

23.2 Burner start-up

The "Domestic" burner is equipped with a self-extracting pump, enabling fuel intake from a tank
installed at a lower level than the burner, provided the pressure difference measured with the
vacuum gauge at the pump does not exceed 0.4 bar (30 cmHg).

Ensure there is fuel in the tank, that the oil valves are open and that there is an electric connection
to the burner. Turn on the master switch. Unscrew the air bleed screw (manometer point). Then,
when the valve opens, remove the photocell sensor and move it towards a light source until fuel
comes out. Disconnect the burner and screw the bleed screw back in.

23.3 Adjusting the combustion conditions

As each particular installation has a different combustion circuit, it is essential to adjust the
combustion conditions of each boiler. For the guarantee to be valid, the burner must be adjusted
by an official DOMUSA TEKNIK Technical Assistance Service.

Observe the flame. If there is insufficient combustion air, it will be dark in colour and will produce
smoke, obstructing the flue outlet.

On the contrary, if there is an excess of combustion air, the flame will be pale or bluish in colour.
This will reduce the performance of the boiler and it will fail to comply with anti-pollution
standards, and the excess air may also hinder the ignition process.

The flame should be orange in colour.
If the shape of the boiler makes it difficult or impossible to observe the flame, the combustion air

flow can be regulated by observing the smoke coming out of the flue. If the smoke is dark in colour,
more air will need to be provided to the burner, and if it is very white, the air in the burner will need
to be decreased until no smoke at all is observed.

If you have a device for determining the composition of the combustion gases, this will be the best
guide for flame adjustment. If not, simply follow the above indications.

To adjust the air and burner line conditions, carefully follow the instructions given below.

33

Primary air adjustment

To adjust the primary combustion air,
turn the screw using a 6 mm. Allen key,
as shown in the diagram. Turn it
clockwise to increase the airflow, and
anticlockwise to decrease it.

Combustion line adjustment

To adjust the combustion line, loosen the combustion line blocking screw "BL". Turn the line
regulator "RL" clockwise to increase the airflow and anticlockwise to decrease it. After adjustment,
tighten the combustion line blocking screw "BL".

BL

RL

+

-

3 mm

0

1

Correct position of electrodes

To ensure correct ignition of the “Domestic” burner, the measurements shown in the diagram must
be observed. Also ensure the electrode fixing screws have been screwed in place before replacing
the flame tube.

2/3 mm

3 mm

10

0

Evolution EV HFM

34

23.4 Oil pressure adjustment

To adjust the oil pump pressure, turn the screw

(1)

clockwise to increase the pressure, and

anticlockwise to decrease it.

1 - Pressure adjustment.
2 – Vacuum gauge point.
3 - Valve.
4 - Manometer point.
5 - Nozzle outlet.
6 - Return.
7 - Intake.

23.5 Oil supply piping diagrams

The diagrams and tables below correspond to installations without reductions and with a perfect
hydraulic seal. It is recommended to use copper pipes. A pressure drop of 0.4 bar (30 cmHg) must
not be exceeded.

Intake installation

H Pipe length

(m)

int. 8 mm. int. 10 mm.

0.0 25 60

0.5 21 50

1.0 18 44

1.5 15 38

2.0 12 26

2.5 10 26

3.0 8 20

3.5 6 16

Charging installation

H Pipe length

(m)

int. 8 mm. int. 10 mm.

0.5 10 20
1,0 20 40

1.5 40 80

2.0 60 100

Intake installation

H

Charging installation

H

H

SUNTEC - MOD. AS47C

1

2

3

4

5

6

7

DANFOSS - MOD. BFP 21 L3

3

5

4

2

7

6

1

35

23.6 Technical specifications

MODEL D-3 D-4
Minimum consumption Kg/h

1,5 2,3

Maximum consumption Kg/h

3 4,65

Minimum power kW

17,7 27,2

Maximum power kW

35,5 55,2

Motor power at 2800 r.p.m. W

200

Adjustment type

On/Off

Electric current

220 V - 50 Hz

Weight Kg

12,5

Preheater

YES

23.7 Operating curves

5

10

15

1

2 3 4 5

Kg/h

10200

20400 30600 40800 51000

Kcal/h

11.8 23.72 47.44 35.58 59.3 Kw

mmH

2

O

OVERPRESSURE / FLOW

D-3

D-4

23.8 Nozzles
Evolution boilers are supplied with the burner fitted, together with its corresponding nozzle and a

standard pre-adjustment. The following table shows the nozzles and adjustments for each
particular model:

MODEL Nozzle

Burner pressure

(bar)

Air adjustment Line adjustment

EVOLUTION EV 30 HFM

0,55 60º H 13 2,5 1

EVOLUTION EV 40 HFM

0,60 45º H 18,5 2,5 1

Evolution EV HFM

36

23.9 Electrical connection diagram

1 2 5 6 8

10 11 12

3

FR

TR



MB

EV1

LB

RP

Black

Blue

TCTS

Ph

N

4

EV2

Preheater

F

7

TC: Boiler Thermostat.
TS: Safety Thermostat.
F: Fuse.
LB: Cut-off Light.
FR: Photocell.
TR: Transformer.

MB: Oil Pump Motor.
EV: Valve.
RP: Preheater Element.
Ph: Phase.
N: Neutral.

23.10 Quick connector

To connect and disconnect the red oil intake tube to the nozzle, proceed as follows:

- Press the connector ring in the direction of the arrow, pulling on the red tube at the same time.

PRES S

RING

TUBE

OIL

QUICK CONNECTOR

37

23.11 Burner control operating sequence

The burner’s LMO control box has a reset button which
is the key element for resetting the burner control and
activating/deactivating the diagnosis functions.
The multi-colour LED on the reset button is the
indicator for visual diagnosis. The button and the LED
are located under the transparent cover of the reset
button. During normal functioning, the various
operating statuses are indicated in the form of colour
codes (see the colour code table below). During
ignition, the indication is as shown in the following
table:

Colour code table for multi-colour indicator lights (LEDs)

Status Colour code Colour

Wait time «tw», other standby statuses

...................................................................

Off

Fuel pre-heater on

……………………………………

Yellow

Ignition phase, controlled ignition

Flashing yellow

Functioning, flame OK

……………………………………

Green

Functioning, flame not OK

Flashing green

External light during burner ignition

Red/green

Undervoltage

Yellow/red

Failure, alarm

……………………………………

Red

Error code output (see «Error code table»)

Flashing red

Interface diagnosis

Flashing red light

….. Steady light Red
Off Yellow
Green

Botón de rearme

Evolution EV HFM

38

24 FAILURES

This section provides a list of the most common burner and boiler failures.

Burner error code

We have already mentioned that the burner is equipped with a cut-out system, indicated by the reset
button light. It may cut out accidentally, and in this case the steady red light on this button will come
on. You may unblock it by pressing the button for approx. 1 second. When the burner is blocked and
the steady red light is on, visual failure diagnosis may be activated, in accordance with the error code
table. To enter visual failure diagnosis mode, hold down the reset button for at least three seconds.

Error code table

Red flashing LED code “AL” on

term. 10

Possible cause

Flashes 2 times On No flame established when ignition safety time

ends.

- Fuel valves defective or dirty

- Flame detector defective or dirty

- Burner maladjustment, no fuel

- Ignition unit defective
Flashes 4 times On External light during burner ignition
Flashes 7 times On Excessive flame loss during functioning (limited

number of repetitions)

- Fuel valves defective or dirty

- Flame detector defective or dirty

- Burner maladjustment
Flashes 8 times On Supervision of fuel pre-heater time
Flashes 10 times On Cabling fault or internal failure, output contacts,

other failures

During the failure diagnosis time, the control outputs are disabled and the burner remains off.
To exit failure diagnosis and activate the burner again, reset the burner control. Hold down the
reset button for approx. 1 second (<3 s).

Boiler failures:

FAILURE CAUSE SOLUTION

- The pump is not turning Unblock the pump

RADIATOR
DOES NOT

HEAT UP

- Air in hydraulic circuit Drain the installation and
the boiler (the automatic
air drain valve cap must
always be loose)

- Burner badly adjusted Adjust it correctly

- Flue not correctly sealed Eliminate any leaks

- Flame unstable Examine the burner

EXCESSIVE

NOISE

- Flue not insulated Suitably insulate it

39

Circulating pump alarms

The high efficiency pumps include a Led (light) which displays their status.

PUMP LIGHT DESCRIPTION STATUS CAUSE SOLUTION

It is lit green

The pump is
functioning

The pump operates
according to its
setting

Standard functioning

It flashes
green

Standby mode
(PWM version)

The pump is in
standby mode

1. Low voltage
U<160 V
or
Excess voltage
U>253 V

1. Check the
power
supply

195 V<U<253 V
It flashes
red/green

The is ready for
service but is not
functioning

The pump will start
up again
automatically once
the error has been
solved

2. Excess temperature
of the module: the
temperature of the
motor is too
high

2. Check the

room

temperature and that

of the fluid

Flashes red

The pump is out of
order

The pump is stopped
(blocked)

The pump does not start
up automatically.

Change the pump. Please

contact your nearest

official technical

assistance service to have

it replaced

1. The pump is not
connected to the power
supply

1. Check the

connection of the

cable

2. The LED is faulty 2. Check if
the pump
works

Light off

There is no power
supply

The electrical system
is not receiving
power supply

3. The electrical system is

faulty

3. Change the
Pump. Change the
pump. Please contact
your nearest official
technical assistance
service to have it replaced

Evolution EV HFM

40

25 SPARE PARTS LIST

Burner

5

6

7

8

9

15

16

17

18

19

20

24

28

29

31

25

27

26

11

10

13

12

23

22

21

4

2

1

30

32

33
34
35

14

3

Pos. Code Name Pos. Code Name

1

CFER000032 Cable gland 19 CQUE000147 Oil hose

2 CFER000033 Cable gland 20 CQUE000055 Oil filter
3 CQUE000027 Preheater cable 21 CTOR000007 Elbow connector
4 CTOE000063 Burner line D3 22 CQUE000011 Oil pump Suntec
5 CQUE000155 Turbulator disc D3 CQUE000088 Oil pump Danfoss
5 CQUE000013 Turbulator disc D4 23 CQUE000056 Valve coil Suntec
6 CQUE000019 Set of electrodes CQUE000089 Valve coil Danfoss
7 CQUE000044 Fan 24 CQUE000054 Valve coil cable Suntec
8 CQUE000095 Air adjustment support CQUE000124 Valve coil cable Danfoss
9 CTOE000064 Air adjustment screw 25 CTOE000065 Counter thread

10 CQUE000151 Air adjustment plate D3 26 CQUE000004 Motor pump coupling

CQUE000152 Air adjustment plate D4 27 CQUE000102 Motor
11 CGAS000220 Manifold 28 CQUE000094 Motor support
12 CQUE000173 Flange seal 29 CQUE000080 Nozzle D3
13 SATQUE0001 Flange CQUE000081 Nozzle D4
14 CQUE000158 Support seal 30 CQUE000061 Preheater
15 Short flame tube D3 ø84x25 31 CQUE000096 Line cover

Long flame tube D4 ø84x45 32 CQUE000149 Photocell support
16 CQUE000129 Control box plugs 33 CQUE000156 Photocell
17 CQUE000169 Control box 34 CTOE000054 Line adjustment
18 CQUE000005 Transformer 35 CTOR000006 Straight connector

41

Boiler

1234246789711

12

13

14

15

16

17

18
19

21

20

22

23

Evolution EV HFM

42

24 25 26 27 28 29 30 31

32

33

31

34

39

36

37

38

35

Pos.

Code

Name

1 CEXT000717 Door
2 CFER000059 Automatic door-close
3 CVAL000034 Drainage valve
4 CVAL000002 3/8 full/empty valve
5 CFOV000148 Heating pump 30 HFM

CFOV000149 Heating pump 40 HFM
6 CFER000051 Extraflex 80 extendable tube
7 CFUC000052 Cast iron burner support door
8 CFUC000053 Cast iron vent cover

9 CVAL000004

½ 3kg. Safety valve with man.
pt.

10 CFUR000020 Manifold 30 HFM

CFUR000017 Manifold 40 HFM

11 CEXT000702 Left side 30 HFM

CEXT000703 Roght side 30 HFM

11 CEXT000725 Left side 40 HFM

CEXT000736 Right side 40 HFM

12 CEXT000975 Cover side
13 CEXT001247 Rear panel 30 HFM

CEXT001248 Rear panel 40 HFM

14 CEXT000716 Roof 30 HFM

CEXT000737 Roof 40 HFM

15 CTOE000012 Fixing clip
16 CFOV000025 Expansion vessel 30 HFM

CFOV000043 Expansion vessel 40 HFM

Pos.

Code Name

17 CFER000048 Spring closure
18 CFOV000024 3/8 PURGOMAT drain valve
19 CELC0000252 Presure transducer
20 CFOV000061 Flowswitch
21 CFOV000148 Pump
22 CFOV000033 Heatexchanger 30 HFM

CFOV000067 Heatexchanger 40 HFM
23 SELEEVO021 Electrical main board HFM
24 CELC000294 Control panel embellisher
25 COTR000046 Main board glass
26 CELC000360 Display card
27 CMAZ000128 Cable harness
28 CELC000240 Flowswitch connector
29 CELC000036 Weidmuller strip 3 poles
30 SEPO001947 Drawer
31 SEPO001325 Panel fastening

32 CELC000234

Temperature Evolution sensor

0,90 mts.
33 SEPO001326 Drawer cover
34 CELC000255 Pressure sensor cable
35 CELC000022 Safety thermostat 110º 1,5m
36 CELC000358 Power supply card
37 CELC000298 Electronic cards cable
38 SCHA008320 Display suport
39 CELC000022 Fumes thermostat

43

26 WARRANTY CONDITIONS

DOMUSA TEKNIK’s commercial guarantee(*) covers the standard functioning of the products
manufactured by DOMUSA TEKNIK Calefacción S.Coop., in accordance with the following conditions
and time periods:

1. This commercial guarantee is valid for the following periods, as from the start-up date:

2 Years for electric and hydraulic elements: pumps, valves, etc.
5 Years for heat exchangers.
5 Years for domestic hot water tanks.

During the 2-year period following the start-up date, DOMUSA TEKNIK will carry out any repairs of
original flaws or defects totally free of charge.

After these 2 years have elapsed and until the end of the guarantee period, labour costs and call­out charges will be payable by the user.

2. The annual overhaul is not included in the terms of this guarantee.

3. The start-up and annual overhaul are to be carried out by personnel authorised by DOMUSA TEKNIK.

4. The commercial guarantee will be null and void in the following cases:

- If the annual overhaul by personnel authorised by DOMUSA TEKNIK has not been carried out.

- If the boiler has not been installed in accordance with the applicable laws and regulations for this
type of appliance.

- If the boiler has not been started up immediately after its installation, by personnel authorised by
DOMUSA TEKNIK.

Failures due to misuse or incorrect installation, use of non-suitable electrical power or fuel, supply with
water with physical or chemical properties causing incrustation or corrosion, incorrect handling of the
appliance and, in general, for any reason beyond DOMUSA TEKNIK’s control, are excluded from this
guarantee.

This guarantee does not affect the consumer’s rights as stipulated by law.
Note: Start-up is included in the price of the boiler. The call-out charge is not included.

Evolution EV HFM

44

NOTES:

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UK ADDRESS HEADQUARTERS & FACTORY

Unit D4 Stanlaw Abbey Business Centre, Bº San Esteban s/n
Ellesmere Port, CH65 9BF

20737 RÉGIL (Guipúzcoa)

Tel: [phone] Tel: [phone]

www.domusateknik.com

DOMUSA TEKNIK reserves the right to make modifications of any kind to its product

characteristics without prior notice.

*CDOC001110*

CDOC001110 05/16