Centrometal EKO-CUP SV3 2500 Owner's manual

TU-ECSV32500-03-2022-ENG
EKO-CUP SV3 2500
for installation, use and maintenance
of the hot water boiler
and installation of the additional equipment
HEATING TECHNIQUE
Centrometal d.o.o. - Glavna 12, 40306 Macinec, Croatia, tel: [phone], fax: [phone]
TECHNICAL INSTRUCTIONS
ENG

These instructions are an integral part of this product. All rights reserved.
Reproduction of content of this document and transfer to third parties is
not allowed without written approval from manufacturer. Make sure the
instructions are always with the device, even if it is sold/transferred to
another owner, so user or authorized person for maintenance or repairs
can consult it.
Important
i
READ THESE INSTRUCTIONS CAREFULLY BEFORE
INSTALLING THE BOILER TO HEATING SYSTEM!
!
!
Boiler must not be used by children or disabled persons (either
physically or mentally), as well as by persons without knowledge or
experience, unless they are under control or trained by a person
responsible for their safety. Children must be supervised in the
vicinity of the product.
!Boiler must not operate in flammable and explosive environment.
!Before any work on the boiler, electric energy must be switched off.
2Technical instructions EKO-CUP SV3 2500
!
Please note that the installation, startup and maintenance can only
be performed by a qualified heating contractor or service
organization. Any work on electrical installations and fuel carrying
components must be done by a qualified service technician.

Important
!
EXPLOSIVE DANGER DUE TO FLAMMABLE FUMES!
WHAT TO DO WHEN YOU SMELL SMOKE?
- Shut off main gas /oil supply!
- Open windows and doors!
- No open fire! Do not smoke! Do not use a lighter!
-Avoid generating sparks! Do not use an electrical switch, telephone,
electrical socket or bell!
- Notify homeowner, but do not use a door bell or phone!
- Leave the building!
- Immediately notify the gas or oil supplier from a remote location!
- If necessary, inform the police or fire department.
- Immediately leave the building, when you hear or see the gas leak!
Insufficient amount of fresh air for combustion in the boiler room can
lead to dangerous conditions.
Make sure that the openings for combustion air supply are not
reduced or closed.
Keep the boiler room door closed.
Protect the boiler room and avoid rodents and birds from entering
and blocking the air openings.
If the above mentined issues are not solved, the boiler cannot be put
into operation.
!
3
Technical instructions EKO-CUP SV3 2500

Technical data
TECHNICAL DATA1.0.
TYPE
(kW)
(kW)
(mbar)
(l)
(°C)
(°C)
(mg/kWh)
(mbar)
(mbar)
(kW)
(kg/s)
(kg/s)
(%)
(mm)
(l)
3
(m )
(V)
(Hz)
(kg)
(bar)
(bar)
(°C)
(mm)
(%)
(%)
(kW)
(kW)
(kW)
(kW)
Nominal heat output
Heat output range
Required chimney draught
Water amount in boiler
Exhaust gas temperature at nominal heat output (Qn)
Exhaust gas temperature at minimum heat output (0,3 x Qn)
Emissions of nitrogen oxides Nox OIL/GAS
Resistance of the combustion chamber at 80% power output
Resistance of the combustion chamber at 100% power output
Fuel type
Maximum heat input OIL/GAS
Exit flue gas mass flow at 100% power output OIL /GAS
Exit flue gas mass flow at 30% power output OIL /GAS
CO2 content at 100% power output OIL /GAS
Combustion chamber dimensions
Combustion chamber volume
Combustion chamber type
Gas volume of the boiler
Supply voltage
Frequency
Current type
Total mass - (boiler with casing and accessories)
Max. operating overpressure
Test pressure
Max. operating temperature
Flue gas outlet pipe diameter
Standby heat loss (Pstby)
Auxiliary electricity at full load (elmax)
consumption (Weishaupt at part load (elmin)
WM-GL30-2-ZM-T) in standby mode (PSB)
EKO-CUP SV3 2500 2500
2100
630-2100
0,1
3000
165°C
95°C
180,4/104
6,7
10,4
oil/gas
2264,15/2289,57
0,966/0,981
0,297/0,302
12,61/9,71
Φ 935x2800
1922
overpressure
3,28
230/400
50
~
5194
6
9
100
Φ 450
93,75/93,24
92,75/91,72
-
5.997
3.685
0.006
direct flame operation
multi stage
DESCRIPTION:
values given in the table are test report values issued by SZU s.p., Brno, Czech Republic.
GAS/OIL:
burner Weishaupt WM-GL30-2-ZM-T
Flame operation
Boiler type (Weishaupt WM-GL30-2-ZM-T)
4Technical instructions EKO-CUP SV3 2500
Useful eff. at rated heat output and high temp. regime OIL/GAS (η4)
Useful effic. at 30% of rated heat out. and low temp. regime OIL/GAS (η1)

Boiler dimensions
632 4
D
C
F
A
B
E
BOILER DIMENSIONS
A Boiler width
B Boiler length
C Boiler height
D Boiler flue exhaust
E Burner opening
F Filling / drainage
1 Boiler return
2 Main flow
3 Safety line
4 Filling / drainage
5 Sensors / gauges
6 Min / Max pressure limit switch
7 Position for probe -
exhaust gases emissions
(mm)
(mm)
(mm)
(mm)
(mm)
(mm)
DN (PN 16)
DN (PN 16)
DN (PN 16)
R”
R”
R”
EKO-CUP SV3 2500
1932
3485
2145
1580
1035
135
150
150
50
6/4
1/2
1/2
50
100
200
300
1
2
3
4
5
6
7
8
9
10
20
30
40
50
Boiler resistance in mbar
10
20
30
40
3
Flow in m /h
5
1 7
R” 1/2
5
Technical instructions EKO-CUP SV3 2500
Boiler resistance on water side

Boiler EKO-CUP SV3 2500 component parts
BOILER EKO-CUP SV3 2500 COMPONENT PARTS
2.0.
Boiler
door
porter Flue gas
pipe
Main
flow
Opening
for
cleaning
Filling/
drainage
Boiler door
with
thermal
insulation
Control
panel Boiler
outter
panneling
Safety
line
Boiler
return
flow
Blind
panel
Sensors/
Gauges
Thermal
insulation
layer
(mineral
wool)
Insulation
braid
Water
deflector
of the return
flow
Stainless
steel
turbulator
Flue
gas
outlet
Min/Max
pressure
limit
switch
Sensor
tube Position for
probe -
exhaust
gases
emissions
6Technical instructions EKO-CUP SV3 2500

In general, boiler description, delivery, mounting
IN GENERAL
The new boiler for central heating is intended for firing with fuel oil extra light EKO-CUP SV3 2500
(FOEL) and gas. The boiler has a modern construction and design regarding to the designed capacity.
It is made out of controlled high quality materials, welded with the most modern technology. The boiler
EKO-CUP SV3 2500 is approved and tested in accordance with EN standards and fulfills all special
requirements for connection to the central heating installation.
The boiler EKO-CUP SV3 2500 is a triple pass flue gas flow system steel hot water boiler. Flue gases
flow from the combustion chamber into the tube of second pass and then into the tube of third pass,
where turbulators are placed. Turbulators enable better transmission of the thermal energy to the boiler
water and also enable the fine flue gas outlet temperature control.
BOILER DESCRIPTION
The boiler EKO-CUP SV3 2500 is delivered with outer boiler panelling made of plastificated sheet
metal and thermal mineral wool insulation together with a high quality modern designed boiler control
panel. Afterwards it is possible to build in one or two additional control units for the heating control of
one or more boiler and heating circuits.
BOILER DELIVERY
BOILER MOUNTING
It is recommended to mount the boiler in the boiler room, which has to be builtEKO-CUP SV3 2500 to in
accordance with s undisturbed serving and easily the boiler heating power, normal operation condition ,
accessible boiler, burner and boiler equipment. The boiler must be placed on the 5 to 10 cm high
concrete slab above the ground. lab edges must be protected by a frame (50x50x5). The S n iron made
boiler must be positioned in order to enable supervision during boiler operation, cleaning and
maintenance. Due to eas transport of the boiler into the boiler room, mounting of the thermal ier
insulation has to be done after the boiler is properly placed in the boiler room as shown the e 1.on Figur
3.0.
3.1.
4.0.
5.0.
7
Technical instructions EKO-CUP SV3 2500

Insulation mounting
18
20
17
19
21
14
M8x15
13
1516
M8x35
12
6
11
10
4
5
22
4,2x30
9
3
2
8
1
7
bracket-X
23
Figure 1: The boiler outer panelling assembly EKO-CUP SV3 2500
17
1. Put side panels onto bracket-X in the order shown on the figure –
panels 1 to 12 (panels 1 to 6 are the same and panels 7 to 12 are the same).
2. Attach the top front panel 13 with two M8x35 screws to the boiler and do the same with
the top rear panel 14 .
3. Screw the two 3,9x13 screws slightly (not to the bottom) on the left and right side of the top
front plate 13 .
4. Pull the sensors through the opening on the top front panel 13 and place them into intended
sensor sleeves. Put the controller unit over the 3,9x13 screws, slide it and then screw the
screws completely (to the bottom).
5. Put the top right panel 15 on the boiler.
6. Put the top left panel 16 on the boiler.
7. Attach the connection panel and back panels 18 to 21 to the top rear panel and the side panels
1 4 7 and 10 with 4,2x30 screws.
8. Side panels 3 6 9 and 12 attach to the door protection brackets 22 and 23 with
4,2x30 screws and then attach door protections to those brackets.
PROCES OF PANELLING ASSEMBLY ON THE BOILER:
8Technical instructions EKO-CUP SV3 2500

Chimney, connection to the chimney, fresh air opening
CHIMNEY
6.0.
Correctly calculated and performed chimney is a precondition for a safe boiler operation and economic
heating results. The chimney must be well thermal insulated, gas-impermeable and smooth. On the
lower part of the chimney a cleaning door must be installed. A walled chimney must be three-layered
with a middle mineral wool insulation layer. The thickness of the insulation should be at least 30 mm
thick if the chimney is mounted inside the building and 50 mm thick if is mounted outside the building
walls. The inner diameter of the chimney depends upon the actual chimney height and the boiler
heating power. The flue gas temperature on the chimney exit has to be at least 30°C higher than the
condensation temperature of combustion flue gases.
To ensure safe, reliable, efficient and long-lasting boiler operation, the chimney must be calculated in
accordance with the norm EN 13384-1 (software such as KESA Aladin or similar).
9
Technical instructions EKO-CUP SV3 2500
A = 6.02 Q
2
FRESH AIR OPENING
10 mm
min. 1 m
8.0.
7.0 CONNECTION TO THE CHIMNEY
The flue gas tube between the boiler and the chimney has to be mounted under an inclination between
30 to 45° (Figure 2). To prevent the entering of condensing fluid from the chimney into the boiler it is
necessary and important to mount the flue gas tube 10 mm deeper into the chimney. It is highly
recommended to insulate the flue gas tube, especially if is longer than 1m. For easier flue gas tube
cleaning the tube must have an opening (Figure 3). Connections of the flue gas tube on the boiler and
chimney must be properly made and sealed. For easier chimney cleaning we recomend the distance
at least 1m between the boiler and the chimney or wall.
Opening for cleaning
Figure 2: Possible way to connect the
EKO-CUP SV3 2500 boiler to the chimney Figure 3: Possible way to connect the
EKO-CUP SV3 2500 boiler to the chimney
Every boiler room must have a correctly calculated opening for fresh air inlet regarding to the boiler
heating power. The diameter of the fresh air opening must be calculated:
A - surface of the opening in cm
Q - boiler heating power in kW
The opening must be protected by a net or grid.
min. 1 m
x

10 Technical instructions EKO-CUP SV3 2500
All installation works must be done in accordance with valid national and European standards. Before
boiler connection to the heating installation it is necessary to clean all tubes in the system from dirt
layers. These actions prevent boiler overheating, noise in the heating system, disturbances on the
pump and mixing valve. In a closed heating system, it is obligatory to install certificated safety valve
with opening overpressure set on 6 bar. Safety and expansion lines must not have any shut-off
elements. Drainage of heating water flowing through the safety valve is conducted direct to the
sewerage. During the water filling into the heating system it is necessary to open the mixing valve if it is
mounted and to air-vent the boiler and the heating system. Boiler connection to the central heating
installation must be performed as it is shown on Scheme 1. and in accordance with the norm EN
12828:2012+A1:2014.
As it is shown on Scheme 1., the boiler must be connected to the heating system over hydraulic
crossover and the boiler return flow protection must be performed with 3-way mixing valve with motor
actuator, that will keep temperature above 60°C. Depending on configuration or controller, this motor
actuator may have its own controller or it can be controlled by a boiler controller.
9.0. CONNECTION TO THE INSTALLATION
Boiler connection to the installation

11
Technical instructions EKO-CUP SV3 2500
Boiler connection to the installation
A - Boiler main flow
B - Boiler return flow
C - Circulation pump
D - 3-way mixing valve
(with sensor + controller)
E - Automatic air vent point
LEGEND:
F - Thermal insulation
G - Safety valve 6 bar
(only at closed heating circuit)
H - Temperature sensor of 3-way
mixing valve with motor actuator
G
Hydraulic crossover
M
A
B
CD
E
F
H
Scheme 1: Hydraulic scheme
iHydraulic scheme must be performed as shown on this scheme.
Other parts of installation, which are not shown on this scheme must be
performed according to the norm EN 12828:2012+A1:2014.
9.1. WATER QUALITY
To prevent excessive limescale build-up of calcium carbonate on the boiler heating surfaces, its concentration
must be below the permitted maximum values mentioned in the following table:
Boiler
EKO-CUP SV3 2500
Total alkaline earths mol/m³
< 0.02
Total hardness °dH
< 0.11

12 Technical instructions EKO-CUP SV3 2500
10.0. MONTAŽA PLAMENIKA
0
30
40
678
5
42
3
1
10.0. BOILER CONTROL PANEL
Boiler control panel
Setting boiler operation temperature (30°C to 100°C) is achieved by turning the button.
Setting boiler operation temperature (35°C to 100°C) is achieved by turning the button.
6
The switch with a signal diode for turning the boiler ON and OFF.
If any disturbances occur during the boiler operation, this control signal light will light up.
The switch for turning the circulation pump ON and OFF.
1. MAIN SWITCH
2. BURNER CONTROL SIGNAL LIGHT
3. CIRCULATION PUMP SWITCH
4. REGULATION THERMOSTAT FOR THE FIRST BURNER STAGE
5. REGULATION THERMOSTAT FOR THE SECOND BURNER STAGE
6. SAFETY BOILER THERMOSTAT (STB)
To prevent disaster the STB stops the burner operation if the boiler water temperature exceeds
110 - 6°C . When the burner is put into the operation again, following steps must be taken:
! wait until the boiler temperature drops and reaches the value under 70°C
! take off the safety lid off (Position )
! push the red button
If there are still frequent interruptions during the boiler operation, it is necessary to contact the
qualified person to check it out.
7. THERMOMETER
The thermometer indicates the boiler water temperature in °C.
8. POSITION FOR MOUNTING HEATING CONTROL UNIT
(additional equipment)

13
Technical instructions EKO-CUP SV3 2500
10.0. MONTAŽA PLAMENIKA
10.1. INSTALLATION AND POSITIONING OF CONTROL, INDICATION AND
SAFETY PROBES
Installation and positioning of control, indication and safety probes
The first burner stage thermostat sensor
The second burner stage thermostat sensor
The thermometer sensor
Boiler EKO-CUP SV3 2500
Control panel
The safety boiler thermostat (STB) sensor
sensors tube
(put the sensors into the sensors tube)

14 Technical instructions EKO-CUP SV3 2500
10.2. CONNECTION TO THE ELECTRIC INSTALLATION
N L N NL L
S3
T1 T2 T3 T4 T5
POWER
SUPPLY
230 V
PUMP BURNER
J
JJ
2a
1a
2
1
PS1 PS2
STB
RT1
1 12
C C
SECOND
STAGE
SS
RT2
The boiler EKO-CUP SV3 2500 is equipped with a boiler control panel. During the installation of
electrical installations, which must be done by a qualified person it is first necessary to take off the lid on
the back side of the basic boiler controller (Figure 4), on which line clamps for the electric supply,
burner connection and circulation pumps are positioned. It is recommended to put a thermostat on the
boiler main flow, which switches ON (65°C) and OFF the circulation pump to prevent the boiler cooling
over the boiler return flow before it reaches an optimal temperature.
Scheme 2: Control panel electric scheme
Ps1 - Burner switch
PS2 - Pump switch
SS - Signal light
ST - Safety thermostat
RT1 - Regulation thermostat for the first burner stage
RT2 - Regulation thermostat for the second burner stage
Figure 4: Taking off the basic boiler control panel back lid
Connection to the electric installation

15
Technical instructions EKO-CUP SV3 2500
Burner selection, adjustment, mounting
11.0. BURNER SELECTION
The burner must be selected in accordance with nominal boiler heating power and combustion
chamber resistance at nominal power (see Technical data on the page 4.).
Burner selection:
FUEL APPROPRIATE BURNER
OIL Oil burner with fan tested and designated by EN 267
norm.
GAS Gas burner with fan tested and designated by EN 676
norm.
11.1. BURNER ADJUSTMENT
The burner must be adjusted in accordance with technical instructions for the oil / gas burner.
11.2. BURNER MOUNTING
The opening on the boiler door is factory made and it is used for burner mounting.The gap
between the burner tube and the insulation or the boiler door must be filled with pieces of the
mineral wool or braid (which is delivered with the boiler).
1146 827 349 – 374 248 128 610 507 261 301 695 256 505 212 621
DIMENSIONS (mm) - WM-GL30/2 ZM-T
flange connection
in accordance with
DIN EN 1092-1
fresh air supply intake
l1 l2 l3 l4 l5 b1 b2 b3 b4 h1 h2 h3 h4 h5

16 Technical instructions EKO-CUP SV3 2500
Burner mounting, boiler startup
Burner tube
Gap which must
be closed
Blind panel
Insulation panel
Mineral wool
Figure 5: Burner mounting on the boiler EKO-CUP SV3 2500
Boiler door insulation
Before startup please check if:
- the flue gas tube is properly sealed and the boiler is connected to the power supply
- there is no water leakage
- the filling/drainage valve in the system is closed
- the complete installation is air-vented
- the safety valve works properly (activate the safety valve and check if it works properly)
- the probes for control, indication and safety are installed and positioned in accordance with item
“ "10.1. INSTALLATION AND POSITIONING OF CONTROL, INDICATION AND SAFETY PROBES
- the burner is installed and positioned in accordance with item "BURNER MOUNTING" and
technical instructions, which are given with the burner
Startup must be done by a qualified and authorized service technician for boilers and burners.
The burner has to be set in accordance with technical instructions, which are given with the boiler.
The burner has to be set on (OIL) 2264,15 kW / (GAS) 2289,57 kW of heat input for nominal heat
output of 2100 kW.
BOILER STARTUP
12.0.

17
Technical instructions EKO-CUP SV3 2500
BOILER USE
13.0.
!
READ THESE INSTRUCTIONS CAREFULLY BEFORE INSTALLING THE BOILER
TO HEATING SYSTEM!
- Boiler must not be used by children or disabled persons (either physically or mentally), as well
as by persons without knowledge or experience, unless they are under control or trained by a
person responsible for their safety. Children must be supervised in the vicinity of the product.
- The boiler must not operate in flammable and explosive environment.
- Before any work on the boiler, electric energy must be switched off.
- Any work on electrical and fuel supply components must be done by a qualified service
technician.
- EXPLOSIVE DANGER DUE TO FLAMMABLE FUMES!
WHAT TO DO WHEN YOU SMELL SMOKE?
- Shut off main gas /oil supply!
- Open windows and doors!
- Do not use open fire! Do not smoke! Do not use a lighter!
- Avoid generating sparks! Do not use an electrical switch, telephone, electrical socket or bell!
- Notify homeowner, but do not use a door bell or telephone!
- Leave the building!
- Immediately notify the gas or oil supplier from a remote location!
- If necessary, inform the police and fire department.
- Immediately leave the building, when you hear or see a gas leak!
- Insufficient supply of combustion air in the boiler room can lead to dangerous conditions.
Make sure that the combustion air supply openings are not reduced or closed. Keep the boiler
room door closed. Protect the boiler room from entering rodents and birds because they can
block air openings. If above mentioned conditions are not met, the boiler cannot be put into
operation.
- The boiler may be used only by a person appointed by the owner of the boiler and trained by
authorized person for the safe use, maintenance and cleaning of the boiler.
- Before boiler use, check if the whole installation is in accordance with the provided general
information by the contractor regarding to the heating system operation, position and function
of important components in the system. Air-vent the heating system and fill it with water if is
necessary.
- See item „BOILER CONTROL PANEL“, use the MAIN SWITCH and the REGULATION
THERMOSTAT FOR THE FIRST BURNER STAGE to start the boiler.
Use the REGULATION THERMOSTAT FOR THE SECOND BURNER STAGE for boiler
regulation temperature.
Boiler use

18 Technical instructions EKO-CUP SV3 2500
CLEANING AND MAINTENANCE
14.0.
- Before opening the boiler door the boiler must be switched off and cooled.
- Before any work on the boiler, power supply must be switched off.
- Protective gloves are obligatory.
- Before any work on the boiler shut off main gas /oil supply!
!!
ITEM INTERVAL DESCRIPTION
Clean the boiler.
Min. once per year
(before h eating
season)
Before cleaning the boiler switch off the main
switch on the boiler control panel. This action
prevent a possible burner start. Open the boiler
door, pull out turbulators and clean boiler tubes
and the combustion chamber with the brush. The
flue gas chamber and turbulator tube endings can
be cleaned through the opening at the back of the
boiler. After cleaning return turbulators and the lid
of the cleaning opening and close the boiler door.
Burner check by an
authorized service
technician.
Min. once a year
(befor e heating
season)
An authorized service technician has to check the
burner (and set new burner settings if necessary).
Heating system check. Before boiler use
Check if the whole installation is in accordance
with provided general information by the
contractor regarding to the heating system
operation, position and function of important
components in the system. Air-vent the heating
system and fill it with water if is necessary.
CLEANING AND MAINTENANCE SCHEDULE
Protective gloves are obligatory!
Figure 6: Protective gloves
Cleaning and maintenace

19
Technical instructions EKO-CUP SV3 2500
Notes

HEATING TECHNIQUE
www.centrometal.hr
e-mail: [email protected]
Centrometal d.o.o. Glavna 12, 40306 Macinec, Croatia
central tel: [phone], fax: [phone]
service tel: [phone], fax: [phone]
Centrometal d.o.o. shall not be responsible for possible incorrect data caused by printing errors or error made in transcription and all figures and diagrams are for explanatory purposes only and relevant adjustment
have to be made at the spot. In any case, it reserves the right to modify its products as deemed to be required and useful without any prior notification.