Centrometal EKO-CUP V3 Owner's manual

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
TU-V3-03-2022-ENG
EKO-CUP V3

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 that
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 V3
!
Please note that the installation, startup and maintenance can be
only performed by a qualified heating contractor or service
organization. Any work on electrical 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 a 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, notify police or fire department.
- Immediately leave the building, when you hear or see 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 above mentioned issues are not solved, the boiler cannot be put
into operation.
!
3
Technical instructions EKO-CUP V3

Technical data
TECHNICAL DATA1.0.
TYPE
(kW)
(kW)
(mbar)
(l)
(°C)
(°C)
(mbar)
(mbar)
(mbar)
(kW)
(g/s)
(%)
(mm)
(l)
3
(m )
(V)
(Hz)
(kg)
(bar)
(bar)
(°C)
(mm)
(%)
(%)
Nominal heat output
Heat output range
Required chimney underpressure
Water amount in boiler
Exhaust gas temperature at nominal heat output
Exhaust gas temperature at minimum heat output
Boiler resistance on water side at nominal output (dT 10°C)
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
Exhaust gas flow at 100% 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
Uptake tube - external diameter
Efficiency on 30% power output OIL/GAS
Efficiency on 100% power output OIL/GAS
EKO-CUP V3 800 1000 1250 1500
800
240-800
0,03
1020
160
120
36
4,15
6,3
850/850
-
-
fi700x1875
721
1,01
2104
fi300
94,76/94,08
94,33/94,35
1000
300-1000
0,03
1150
160
120
25
4,60
7,1
1060/1060
518/455
9,76/9,2
fi700x1875
721
1,12
2320
fi300
94,74/94,09
94,42/94,30
1250
375-1250
0,03
1410
160
120
38
5,4
7,9
1325/1325
732/680
9,63/9,41
fi825x1875
1001
1,46
2770
fi400
94,60/94,17
94,57/94,47
1500
400-1500
0,03
1510
160
120
27
6,3
8,7
1585/1585
-
-
fi850x1875
1001
1,48
2950
fi400
94,45/94,24
94,72/94,63
.
oil / gas
overpressure
230
50
~
6
9
90 / 100 / 105
iIf you look carefully, in table above, you will see some labeled technical data (*n.).
That label means possibillity to order boilers with different characteristics.
In table below is explained meaning of label.
*1 DESCRIPTION: Boilers EKO-CUP V3 can be used to work with three different max. operating
temperatures - 90°C, 100°C or 105°C, depending on the installed boiler controller.
*2
*2
*2
DESCRIPTON: Values given in the table are the test report values (No. 30-12644/T and
No. 30-12643/T issued by SZU s.p., Brno, Czech Republic).
FOEL: EKO-CUP V3 1000 with burner Giersch M312-Z-L-SD
EKO-CUP V3 1500 with burner Giersch M3.22-Z-L
GAS: EKO-CUP V3 1000 with burner Giersch MG3.1
EKO-CUP V3 1500 with burner Giersch MG3.3
The efficiency values were interpolated between the boiler and burner
combinations that had been tested.
*1
*2
*2
4Technical instructions EKO-CUP V3

Technical data, boiler dimensions
132 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
800 1000 1250 1500
(mm)
(mm)
(mm)
(mm)
(mm)
(mm)
DN
DN
R”
R”
1435
2465
1775
1220
660
225
125
125
65
5/4
1585
2465
1955
1370
765
275
125
125
65
5/4
1635
2465
2005
1420
763
275
125
125
65
5/4
1365
2465
1775
1150
660
225
100
100
50
5/4"
A EKO-CUP V3 800
EKO-CUP V3 1000
B
Flow in m³/h at average water temp 10°C
3 4 5 6 8 10 20 30 40 5060 80100 150
1
2
3
4
5
6
8
10
20
30
40
50
60
80
100 A B
Boiler resistance in mbar
EKO-CUP V3 1250
EKO-CUP V3 1500
Boiler resistance on water side
5
Technical instructions EKO-CUP V3

Component parts of the hot water boiler EKO-CUP V3
COMPONENT PARTS OF THE BOILER EKO-CUP V3
Boiler
door
porter Flue gas
pipe
Stainless
steel
turbulator
Main
flow
Filling /
drainage
Opening
for
cleaning
Boiler door
with
thermal
isolation
layer
Controller
(additional
equipment)
EKO-CUP
S3/V3- REG
or
CUPREG-Touch
Boiler
return
Safety
line
Flue
gas
exhaust
Boiler
panneling
Blind
panel
Sensor
tube
Thermal
isolation
layer of the
mineral
wool
Isolation
braid
Water router
of the
backflow
2.0.
6Technical instructions EKO-CUP V3

In general, description, delivery, mounting
IN GENERAL
The boiler EKO-CUP V3 for central heating is intended for firing with light heating oil and gas. The
boiler has a modern construction and design regarding to the projected capacity. The boiler is made
out of controlled high quality materials, welded with the most modern technology. EKO-CUP V3 boiler
is approved and tested under EN norms and fulfills all special requests for the connection to the central
heating system installation.
EKO CUP V3 is 3-pass flue gas flow system steel hot water boiler. Flue gases flow from the
combustion chamber into the tube of second pass into the tube of third pass in which turbolators are
placed. The turbulators, which are in the tube chamber, enable longer maintaining of the flue gases,
better transport of the heating energy to the water, and also for the fine regulation of the entrance
temperature of the flue gases depending on the boiler load. The flue gases are collecting in the smoke
chamber and drain off to the chimney.
BOILER DESCRIPTION
The boiler EKO-CUP V3 is delivered together with outer boiler panelling made of plastificated sheet
metal and thermal isolation of mineral wool and cleaning tool - cleaning brush.
OBLIGATORY ACCESSORIES (ORDERED ADDITIONALLY):
- Basic boiler controller EKO-CUP S3/V3- REG
or
- Basic boiler controller CUPREG-Touch
MOUNTING
The boiler EKO CUP V3 is intended for mounting in the boiler room, which has to be built according to
the thermal rated output of the boiler, normal operation conditions, undisturbed serving and easily
accessible boiler, burner and boiler equipment. The boiler must be placed on the 5 to 10 cm high
placement above the ground. Edges of the boiler placement must be protected by an iron made frame
(50x50x5). The boiler must be positioned to enable supervision during boiler operation, cleaning and
maintenance. Due to easier transport of the boiler into the boiler room, mounting of the thermal
isolation has to be done after the boiler is properly placed in the boiler room as is shown on the Scheme
1.
3.0.
3.1.
5.0.
7
BOILER DELIVERY4.0.
Technical instructions EKO-CUP V3

PROCESS OF THE PANELLING ASSEMBLY ON THE BOILER:
1. Envelope the insulation layer of the mineral wool over the outer cylinder of the boiler and
fasten it with metal fasteners.
2. (VALID only if boiler controller EKO-CUP S3/V3- REG is installed on the boiler). On the upper
front side (2) install the roots (E),which are used for the mounting of the boiler control panel (7).
3. The boiler probe for boiler controller sensors is located between the boiler flow and return
lines.
a) If the boiler control EKO-CUP S3/V3 - REG is installed on the boiler, it is necessary to push
the termometer sensor, regulation thermostat and boiler controller safety thermostat into the
boiler probe.
b) If the boiler control CUPREG-Touch is installed on the boiler, it is necessary to push the
boiler temperature sensor and the safety thermostat of the boiler regulation into the boiler
probe.
4. Upper front side (2) adjust on the upper insulation porters on the boiler.
5. Assemble the left and right lateral sides (1), each of the two parts with screws (A) (M5x10) and
the lower end of the lateral sides (1) place in the grooves on the lower part of the boiler and
fasten it to the upper side (2) with screws (B) (M6x15).
6. The back side which is made from two part (5) put together with the screws (C) (4,2x30) and
adjust it on lateral sides (1) with screws (C) (4,2x30).
7. Upper side (3) adjust on the upper boiler porters. Do the same with the side (4) and fasten side
(3) to the side (2) with screws (4,2x30).
8. Place the 4,2 x 30 screws with spacers (D) in the marked position and set the door protection
(6) on them.
9. For the control panel electrical connection it is necessary to open the back lid on the control
panel, on which the line clamp is positioned.
Insulation mounting
8
Scheme 1: The boiler outer panelling assembly EKO CUP V3
C (4,2x30)
C (4,2x30)
(bolt M5x10)
A
B (M6x15)
B (M6x15)
B (M6x15)
B (M6x15)
C (4,2x30)
6
1
1
1
1
5
3
4
2
E
7
6
D
(4,2x30)
Technical instructions EKO-CUP V3

Chimney
CHIMNEY
25
30
35
40
45
50
60
70
80
90
100
150
200
250
300
350
400
450
500
600
700
800
900
1000
1500
Heat output range (kW)
Cimney diameter (cm)
60
55
50
45
40
35
30
25
22
20
18
16
14
65
6.0.
20
5 10 15 20 25 30 35 40 45 50 55 60
Needed chimney height (m)
Precisely calculated and performed chimney is a precondition for safe boiler operation and economic
heating results. The chimney must be well thermal isolated , gas-impermeable and smooth. On the
lower part of the chimney a cleaning door must be installed. Walled chimney must be three-layered
with a mineral wool isolation layer in the middle. The thickness of the isolation should be at least 30 mm
if the chimney is mounted inside the building and 50 mm thick if is mounted outside building walls.The
inner diameter of the chimney depends upon the actual chimney height and the boiler power output.
For the correct chimney selection, the sizing must be carried out according to the diagram on
the Figure 1. The flue gas temperature on the chimney exit has to be at least 30°C higher than the
condensation temperature of the combustion flue gases.
Figure 1: Chimney dimensions for the pressurized boilers fired with oil or gas
9
Technical instructions EKO-CUP V3

A = 6.02 Q
2
FRESH AIR OPENING
10 mm
min 600 mm
6.2.
6.1. CONNECTION TO THE CHIMNEY
The flue gas tube (flue gas exhaust) between the boiler and the chimney has to be mounted under an
inclination between 30 to 45°C (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.
For easier flue gas tube cleaning the tube must have an opening (Figure 3). Connections of the flue
tube on the boiler and chimney must be properly made and sealed. For easier chimney cleaning we
recommend the distance between the boiler and the chimney or wall at least 600 mm.
Openings for cleaning
Figure 2: Possible way to connect the
EKO CUP V3 boiler to the chimney
Figure 3: Possible way to connect the
EKO CUP V3 boiler to the chimney
Every boiler room must have a correct calculated opening for fresh air inlet regarding to the boiler
power output. The diameter of the opening for the air inflow is calculated:
A - surface of the opening in cm
Q - boiler power output in kW
The opening must be protected by a net or grid.
Connection to the chimney, fresh air opening
10 Technical instructions EKO-CUP V3

All installation works must be done in accordance with valid national and European standards. Before
boiler connection to the heating system installation it is necessary to clean all tubes in the system from
dirt layers. This actions prevent boiler overheating, noise in the heating system, disturbances on the
pump and mixing valve. Connection to the heating system must be performed with holenders to the
thread connection with or without mixing valve to an open or closed system. In a closed heating
system, it is obligatory to install certificated safety valve with opening overpressure set on 6,0 bar
(depending on the configuration shown on the page 4). Security and expansion lines must not have
any stop elements. Boiler water outlet from the safety valve is lead directly to the sewerage. During the
water filling into the heating system it is necessary to open the mixing valve if it is inbuilt and to air-vent
the boiler and the heating system. The boiler connection to central heating must be performed as
shown on the Scheme 2 and in accordance with the norm EN 12828:2012+A1:2014.
7.0. CONNECTION TO THE INSTALLATION
Connection to the heating installation
11
7.1. WATER QUALITY
Boiler
EKO-CUP V3
Total alkaline earths mol/m³
< 0.02
Total hardness °dH
< 0.11
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:
Technical instructions EKO-CUP V3

Connection to the heating installation
A - Boiler flow
B - Boiler return
C - Circulation pump
D - 3-way therm. motor mixing
valve (if the basic boiler
controller EKO-CUP V3/S3 - REG
is installed on the boiler, it is
necessary to additionally install
a regulator + return temperature
sensor)
E - Automatic air vent point
LEGEND:
F - Thermal insulation of the
security line of the boiler
G - Safety valve max. 6 bar
(only at closed heating system)
H - Additional regulator flow
temperature sensor for control
3-way valve with motor actuator
(if the basic boiler controller
EKO-CUP V3/S3 - REG is
installed on the boiler)
G
Hydraulic crossover /
Accumulation tank
M
A
B
CD
E
F
H
Scheme 2: Hydraulic connection scheme
i
Hydraulic connection scheme must be performed in a manner 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.
12 Technical instructions EKO-CUP V3

10.0. MONTAŽA PLAMENIKA
0
30
40
678
5
42
3
1
8.0. BASIC BOILER CONTROLLER (ADDITIONAL EQUIPMENT)
Basic boiler controller
Setting boiler operation temperature is achieved by turning the button.
Setting boiler operation temperature is achieved by turning the button.
6
Switch with a signal diode for turning the boiler ON and OFF.
If there are disturbances during 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
Stops the burner operation if the boiler water temperature would cross max. permitted
temperature thus preventing any major breakdown. 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 the safety lid off (Position )
- push the red button
If there are still frequent interruptions during the boiler work, 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 AUTOMATIC CONTROLLER
(additional equipment)
13
10.0. MONTAŽA PLAMENIKA
8.1. BASIC BOILER CONTROLLER - EKO-CUP V3/S3 - REG
(ADDITIONAL EQUIPMENT)
Technical instructions EKO-CUP V3

Basic boiler controller
- see technical instructions delivered with the boiler controller CUPREG-Touch/90°C
8.2.1. BASIC BOILER CONTROLLER (additional equipment):
CUPREG-Touch/90°C
8.1.1. BASIC BOILER CONTROLLER - EKO-CUP S3/V3 - REG - 90 °C
(ADDITIONAL EQUIPMENT)
8.2.2. BASIC BOILER CONTROLLER (additional equipment):
CUPREG-Touch/100°C
- see technical instructions delivered with the boiler controller CUPREG-Touch/100°C
- see technical instructions delivered with the boiler controller - EKO-CUP S3/V3 - REG - 90 °C
8.1.2. BASIC BOILER CONTROLLER - EKO-CUP S3/V3 - REG - 100 °C
(ADDITIONAL EQUIPMENT)
- see technical instructions delivered with the boiler controller - EKO-CUP S3/V3 - REG - 100 °C
8.1.3. BASIC BOILER CONTROLLER - EKO-CUP S3/V3 - REG - 105 °C
(ADDITIONAL EQUIPMENT)
- see technical instructions delivered with the boiler controller - EKO-CUP S3/V3 - REG - 105 °C
8.2. BASIC BOILER CONTROLLER (additional equipment): CUPREG-Touch
controller CUPREG-Touch
(additional equipment)
8.2.3. BASIC BOILER CONTROLLER (additional equipment):
CUPREG-Touch/105°C
- see technical instructions delivered with the boiler controller CUPREG-Touch/105°C
14 Technical instructions EKO-CUP V3

10.0. BURNER SELECTION
Burner must be suitable for the respective rated output as well as the resistance of combustion
chamber (see Technical data on 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.
9.0. CONNECTION OF THE BASIC BOILER CONTR. ON EL. INSTALLATION
- see technical instructions delivered with the boiler controller - EKO-CUP S3/V3 - REG - 90 °C
9.1. CONNECTION OF THE BASIC BOILER CONTROLLER -
EKO-CUP S3/V3 - REG - 90 °C ON EL. INSTALLATION
9.2. CONNECTION OF THE BASIC BOILER CONTROLLER -
EKO-CUP S3/V3 - REG - 100 °C ON EL. INSTALLATION
- see technical instructions delivered with the boiler controller - EKO-CUP S3/V3 - REG - 100 °C
9.3. CONNECTION OF THE BASIC BOILER CONTROLLER -
EKO-CUP S3/V3 - REG - 105 °C ON EL. INSTALLATION
- see technical instructions delivered with the boiler controller - EKO-CUP S3/V3 - REG - 105 °C
9.4. CONNECTION OF THE BASIC BOILER CONTROLLER -
CUPREG-Touch/90°C ON EL. INSTALLATION
- see technical instructions delivered with the boiler controller CUPREG-Touch/90°C
9.5. CONNECTION OF THE BASIC BOILER CONTROLLER -
CUPREG-Touch/100°C ON EL. INSTALLATION
- see technical instructions delivered with the boiler controller CUPREG-Touch/100°C
9.6. CONNECTION OF THE BASIC BOILER CONTROLLER -
CUPREG-Touch/105°C ON EL. INSTALLATION
- see technical instructions delivered with the boiler controller CUPREG-Touch/105°C
15
Basic boiler controller
Technical instructions EKO-CUP V3

Burner adjustment and mounting
10.1. BURNER ADJUSTMENT
Burner must be adjusted according to the technical instructions for the oil / gas burner.
BURNER MOUNTING
10.2.
Burner tube
Gap which must
be closed
Blind panel
Isolation panel
Mineral wool
Figure 4: Burner mounting on the boiler EKO-CUP V3
Boiler door isolation
Burner mounting is used if the factory made opening on the boiler door is too large for the chosen
burner. In that case it is necessary to make an appropriate opening for the passage of the burner tube
and to cut the existing mineral wool isolation layer according to the mentioned opening. If it is
necessary, make attach holes for the burner.
ATTENTION !!
If the factory made opening on the boiler door is too large for the chosen burner, it is necessary to make
an appropriate opening for burner tube passage on the blind panel. The existing isolation mineral wool
layer have to be cut to be consistent with that opening. For the burner connection use the existing
holes or if it is necessary make new attach holes for the burner. If after the boiler montage, the gap
between the burner tube and the mineral wool isolation of the boiler door still exist, it is necessary to fill
the gap with pieces of the mineral wool and the braid ( which is delivered with the boiler ) so that the gap
becomes closed (Figure 4).
16 Technical instructions EKO-CUP V3

Checking, startup, operation, maintenance and cleaning
The boiler must not be used in flammable and explosive environment.
It 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. Protective gloves are obligatory (Figure 5). Check if the boiler and the
whole heating system is filled with water and air-vented.
Check if the flue gas tube is properly sealed and if the boiler is connected to the electrical supply. The
burner startup must be done by a qualified and authorized service or person.
After startup please check :
- if there is no water leakage
- if the filling/drainage valve in the system is closed
- if the complete installation is air-vented
- if the boiler water temperature rises
- activate the safety valve and check if it works properly
- that during continuous boiler operation there is no visible chimney condensation
Please repeat the complete check after several days.
Boiler must not operate in flammable and explosive environment. It 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 responsible person for their safety. Children
must be supervised in the vicinity of the product. Protective gloves are obligatory (Figure 5). During
boiler-heating system take over, please check the complete heating system together with the service
technician. The service technician must inform you about the general heating system and about its
supervision. Beyond this you must be informed about the vital parts of the heating systems and their
function. After several days of boiler operation please air-vent the heating system once more and fill it
with water if necessary. At least once a year (before heating season) it is necessary that authorized
service technician check the burner, so the boiler and the heating system operation will be safe and
economic. In case of operation disturbances please contact only the e technician.authorized servic
Protective gloves are obligatory (Figure 5). It is necessary to clean the boiler at least once a year.
Before cleaning switch off the main switch on the boiler control panel, thus prevent a possible burner
start. Open the boiler door and pull out turbulators, clean boiler tubes and the combustion chamber
with the brush. The chimney and the end part of turbulator tubes can be cleaned through the opening
on the back of the boiler. After cleaning return turbulators and the lid of the cleaning opening on the
back side of the boiler and close the boiler door.
BOILER CHECK AND STARTUP
INSTALLATION CHECK AFTER STARTUP
OPERATION AND MAINTENANCE
CLEANING
11.0.
11.1.
11.2.
12.0.
Protective gloves are obligatory!
Figure 5: Protective gloves
17
Technical instructions EKO-CUP V3

18
Declaration of conformity
Technical instructions EKO-CUP V3

19
Notes
Technical instructions EKO-CUP V3

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.