Kospel EKCO.M3 User manual

Electric Central Heating Flow Boiler
Assembly and operating instructions
EKCO.M3
EKCO.MN3
EKCO.M3 ver. 2
EKCO.MN3 ver.2

2
This appliance can be used by children aged from 3 years
and above and persons with reduced physical, sensory or
mental capabilities or lack of experience and knowledge if
they have been given supervision or instruction concerning
use of the appliance in a safe way and understand the hazards
involved. Children shall not play with the appliance.
Cleaning and user maintenance shall not be made by children
without supervision.
Used product can’t be treated as general communal waste.
Disassembled appliance has to be delivered to the collection
point of electrical and electronic equipment for recycling.
Appropriate utilisation of used product prevents potential
negative environmental inuences that may occur as a result
of inappropriate handling of waste. In order to get more detailed
information about recycling this product you should contact the
local government unit, waste management service or the shop
where this product has been purchased.

PL-090B_f. 3
Safety instructions
1. Read and strictly follow this installation and operating instructions to ensure a long
life and reliable boiler operation.
2. An ecient electrical installation which has been completed in accordance with
the binding norm of electric installation.
3. Central heating system equipped with an appropriate expansion vessel completed
in accordance with binding norm of hydraulic installation.
4. Rinse the heating installation thoroughly before installing the boiler.
5. Do not install any barrier ttings (e.g. valves) on the outlet of the safety valve.
6. Boiler can only be installed on the at surface.
7. Boiler must not be installed in a humid place, in a place exposed to the danger of
explosion, or in which the temperature may drop below 0°C.
8. Boiler installation and all electrical and hydraulic work must be performed by a
qualied professional installer in accordance with the manufacturer’s instructions.
9. All installation work must be performed when the power and water supply is turned
off.
10. Electric installation should be equipped with residual current protective devices
and other solutions which will ensure disconnecting the heater from the source of
power (intervals between all their poles should not be less than 3mm).
11. Boiler is preset by the manufacturer to work with the central heating system. Change
the factory settings in the advanced settings to shift to boiler’s cooperation with
DHW Cylinder.
12. Electronically controlled boiler is a electrical surge sensitive device, therefore the
electrical installation must contain surge protection devices.
13. Do not drain the water from central heating system after the heating season.
14. Leave the controller in stand-by mode and do not cut off power supply between.

4
Installation notes
EKCO.MN3 boilers are equipped with an expansion vessel (capacity: 5l, pressure: 1,5
bar). The expansion vessel is sucient for following capacities of the heating system
at given temperatures of the medium and central heating system pressure.
Shall the capacity of the wet central heating installation be larger, an extra expansion
vessel should be installed on it as applicable in accordance with binding norm
Temperature of heating medium
(feed and return)
Capacity of central
heating system
Pressure in central
heating system
[°C] [l] [bar]
85/70 56
1,5
70/55 80
55/45 127
50/40 153
45/35 188
1
1
Tr
Tos
Boiler connection to the central heating system

PL-090B_f. 5
1
1
Tr
Tcyl
Tos
TWV
The lter should be installed that the heating medium ow direction matches the arrow
cast on the hull, and the cover was at the bottom of the lter. Filters can be mounted on
horizontal and vertical pipelines. It is recommended to use shut-off valves immediately
behind and ahead of the lter, which will make cleaning and replacing trhe insert lter
easier.
PI - manometer
ZK - cut-off valve
RW - expansion pipe
NW - built-in expansion vessel (EKCO.MN3)
NW1 - expansion vessel
ZT - thermostatic valve
ZP - passage valve
F - lter
G - radiator
ZS - drain valve
TWV - three-way valve
ZAS - DHW Cylinder
Tr - regulator of room temperature
Tcyl - DHW cylinder temperature sensor
Tos - outside temp. sensor

6
1. Hang the boiler up in a vertical position
on fixing screws with the inlet and
outlet pipes to the bottom, maintaining
clearances from the walls and the ceiling.
2. Connect the boiler to the central heating
system equipped with a cut-off valves.
3. Fill the central heating system with
treated water or non-freezing liquid what
influences on the durability of immersion
heaters.
4. Vent the central heating system.
5. Connect a boiler to the electrical system.
6. Assembly and connect the room regulator
sensor and other devices cooperating,
according to the „Connection point
external sensors and devices”.
7. After completing the above steps start
the boiler, set up boiler language and
maximum output and vent the pump
[Configuration> Pump> Venting> Turn on].
8. Set the maximum temperature factor in
the installation [Configuration> Central
heating> Max boiler temp.].
Assembly and installation
159
215
316
126 50
22
min. 150
50
716
64
93
12
min 150 min 60
Depending on the model of purchased boiler and the electrical installation on site, the
boiler should be connected in accordance with the drawings below.
2, 4, 6, 8 kW 230V 1N~ 4 to 24kW 400V 3N~ 230V 3N~

PL-090B_f. 7
1
1
NL
PNL
2
2
PNL - connection points of neutral,
protective and phase
conductors
[1] - temperature limiter
[2] - additional conductors (for one-
phase system only)
1
1
NL
PNL
PNL - points of neutral and protective
conductor connection
PF - points of phase conductors
connection
[1] - temperature limiter
1
1
NL
PL
PL - points of neutral and protective
conductor connection
PF - points of phase conductors
connection
[1] - temperature limiter
Single phase connection 230V 1N~
Three phase connection 400V 3N~
Three phase connection 230V 3N~

8
M.SUPPLYPUMP.CTWV PUMP
LNPE LNPE LB LA NLNPEPUMP
OG I
FN MA RT Tcyl TosTr
MS
ABAB
Before turning on the power ensure that the switch settings are in compatible
conguration with the boiler’s model and the type of installation.
Switch setting Rated power and type of installation
1 - OFF
2 - OFF
3 - OFF
12 / 16/ 20 / 24 kW, three phase 400V 3N~
1 - OFF
2 - OFF
3 - ON
4 / 6 / 8 kW, three phase 400V 3N~
1 - OFF
2 - ON
3 - OFF
2 / 4 / 6 / 8 kW, single phase 230V 1N~
1 - OFF
2 - ON
3 - ON
6,9 / 9,2 / 11,5 / 13,8 kW, single phase 230V~
1 - ON
2 - OFF
3 - OFF
9 / 12 / 15 / 18 kW, three phase 230V 3~
Switch setting Function
1 - ON
2 - OFF
EKCO.M3 boiler in stand-alone mode or master in
cascade operation
1 - OFF
2 - OFF
EKCO.M3 slave boiler in cascade operation mode
(EKCO.S3)

PL-090B_f. 9
Connection of external control signals
FN MA RT Tcyl TosTr
Tr
Tr
Tos
Tos
FN
FN
MA
MA
RT
RT
Tcyl
Tcyl
Do not connect any voltage into FN, MA, RT, Tcyl, Tos, Tr entries!
This can result in permanent controller damage.

!
entry
symbol function
FN External forcing of temperature change or work algorithm [Conguration> FN entry].
MA
In order to limit the power used, i.e. the boiler can cooperate with other appliances such
as an electric water heater. In order to do so, an electrician should install in line an extra
open contact to the MA entry, so that when a master appliance gets on, the contact
opens, and the boiler switches off- it results in heating blockage and pump’s standstill.
RT
Optional control of the boiler’s operation with an external temperature regulator. Entrance
RT must be activated [Conguration> Room temperature> Temp. sensor RT], short circuit
voltage-free contact will turn on the heating of the CH system.
In case of activation of the RT input, the built in functions of timer and room regulator
will not be available.
Tcyl
DHW cylinder temperature sensor. Optionally, it can be replaced with an external contact
thermostat. To do this, activate the external DHW thermostat.
[Conguration> Hot water > Regulation> Outside]. Short circuit of the Tcyl input will result
in switching on the DHW cylinder heating. When an external DHW regulator is activated.,
the built-in functions of timer and temperature regulator will not be available.
Tos Outside temperature sensor (Tos). It should be installed in a shaded place, on the
north or north-west facade of the building, away from windows and ventilators.
Tr Room temperature sensor (Tr). It should be installed in a representative location of the
facility, away from heaters, windows, doors and communication routes.

10
entry symbol entry functions
S
• boiler in a stand-alone mode or master boiler in cascade mode - connection
only for internet module C.MI2.
• slave boilers in cascade mode - connection to the master boiler.
Mconnection of heating modules and boilers in slave mode.
C.MI2
EKCO.M3
M S
A B A B
A B
EKCO.S3
A B
S
Connecting external devices via communication bus
M.SUPPLYPUMP.CTWV PUMP
LNPE LNPE LB LA NLNPEPUMP
OG I
FN MA RT Tcyl TosTr
MS
ABAB
Communication bus RS485
EKCO.M3
M S
A B A B
A B A B
C.MG3 C.MG3
Heating module C.MG3Internet module C.MI2
EKCO.M3
M S
A B A B
Slave boilers EKCO.S3 in cascade mode
EKCO.S3
A B
S
EKCO.M3
M S
A B A B
C.MI2
A B
A B
C.MG3
EKCO.S3
A B
S
Internet module C.MI2, heating module
C.MG3, slave boiler EKCO.S3 in cascade
mode
Note, each device connected to the communication bus must have a unique identication
number set.

PL-090B_f. 11
Connection of actuators
PUMP.C – circulation pump
PUMP.C
LNPE
Circulation
pump
L N PE
TWV - three-way valve connection
Depending on the type of drive control used (SPDT or SPST), select the appropriate valve
connection diagram. The LA contact is active (the relay gives the voltage to the output)
while the boiler is heating to CH. The LB contact is active at the time when the boiler is
heating up on the DHW cylinder.
TWVPUMP
LB LA NLNPE
PUMP
OG I
VCZMH6000E
VC6013ZZ00
black brown blue
AZV 642
M.SUPPLYPUMP.CTWV PUMP
LNPE LNPE LB LA NLNPE
PUMP
OG I
black brown blue
SPDT SPST

12
Control panel
2
3
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24.2°
24.2°
34°
34°
14.5°
14.5°
1
By turning the operating dial [3] left or right,
you can set the operating modes: stand-by
, CH , DHW , CH + DHW + .By turning
the navigation dial [2] (left or right) in all
modes except stand-by, the function screens
will apper on the display [1]. C.MG3 circuit
screens are also available in the display.
- Main screen: informs about the basic
parameters of the boiler (details in the
table),
- Preview of parameters: information
about the conditions and values of the
boiler parameters,
- Statistics: information about energy
consumption,
- Settings: adaptation of the boiler
parameters to the user’s preferences,
- Conguration: conguration of the
heating system to the requirements of
the facility,
- Service: (available for the installation
company and specialized services
after entering the access code),
- Fast modes: switching the boiler to
special modes.
Entering individual functions takes place
after selecting a corresponding function
screen and pressing the navigation dial.
1 - display
2 - navigation dial
3 - operating dial
Boiler’s error is signalled on the main function screen . After pressing the navigation
dial [2], the list of detected errors is displayed.

PL-090B_f. 13
Heat reception:
Hot water heating / DHW cylinder
CH system heating
Buffer charging
Heating program execution:
According to the daily/weekly schedule
PARTY – maintaining a comfortable temperature in the room and the DHW cylinder
HOLIDAY - maintaining a comfortable economical or anti-freeze temperature in the
room or anti-freeze protection in the DHW cylinder
MANUAL - keeping the set room/DHW cylinder temperature, ( preset schedule
inactive )
TURBO - heating up to the maximum parameters until the set room temperature is
reached
DHW cylinder disinfection
Circulation pump venting
Heating blocked by signal from master device
1 - heat reception signalling
2 - heating program execution
3 - outdoor temperature
4 - work in accordance to CH schedule, the
symbol indicates current temperature
5 - room temperature
6 - work in accordance to DHW schedule, the
symbol indicates the current temperature.
7 - DHW cylinder temperature
MAIN SCREEN:
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9:37 Thu 22.04.2021
24.2°
24.2°
34°
34°
14.5°
14.5°
6
45
21 7 3

14
DHW cylinder temperature settings:
Frost protection
Economy temperature
Comfort temperature
Request for heating from outside regulator ( connected to Tcyl entry )
47°47° Executed temperature value - working in manual DHW mode
Temperature settings for the room:
Frost protection
Economy temperature
Comfort temperature
Comfort temperature plus
Comfort temperature minus
Request for heating from room regulator ( connected to RT entry )
Buffer schedule - loading off
Buffer schedule - loading on
23.5°23.5° Executed temperature value - working in manual CH mode

PL-090B_f. 15
Signaling other settings:
Device’s error indication
Circulation pump operation indication (pulsating means that minimum ow is not
provided) For boilers wit rated power up to 8kW, the minimum ow rate is 3.5 l/min,
for higher powers 4,5 l/min.
Heating on indication
The PV energy limit is on. If all the power is used, the displayed battery symbol is
empty.
Symbol placed next to room temperature value - room temperature control enabled.
Symbol placed next to the outside temperature value - temperature control according
to the heating curve.
Symbol placed next to room temperature value - room temperature control disabled.
Symbol placed next to the outside temperature value -constant heating parameters,
independent of external temperature
STATISTICS:
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9:37 Thu 22.04.2021
Statistics
Statistics
Current and historical energy consumption data.
- Daily counters: energy consumed on individual
days of the month.
- Monthly counters: energy consumed in each
month.
- Remaining energy (visible when the energy
consumption limit is set up [Conguration > PV
options > Energy limit: Yes]): amount of energy
to consume.
- Consumed energy: total energy consumed by
the device.
- Energy cur. week: energy consumed in the current week.
- Energy prev. week: energy consumed in the previous week.
- Energy cur. year: energy consumed in the current year.
- Energy prev. year: energy consumed in the previous year.

16
Settings
Settings
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9:37 Thu 22.04.2021
SETTINGS :
• Boiler temperature: Target CH temperature (only available in basic mode and
setting the constant parameters of CH [Conguration> Central heating> Regulation>
Constant].
• Room temp.: setting the requested room temperature, available with activated Tr
sensor [Conguration> Room temp.> Temp. sensor> Tr].
- Economy temp. , Comfort minus , Comfort , Comfort plus : setting room
temperature values available in schedules,
- PARTY, HOLIDAY: select temperature parameters for programs: PARTY & HOLIDAY.
• DHW temperature: setting requested teperature of the DHW cylinder, (available
only with activated inside regulation. [Conguration> DHW cylinder > Regulation>
Inside]):
- Economy temp. , Comfort : setting hot water temperature values available in
schedules
• Energy [kWh]: The counter of available energy. If energy consumption is to be
reduced, the amount of available energy (e.g. surplus from PV production) should
be set. When the declared amount of energy is exhausted, the boiler will not turn the
heating on. This function is available when the power limit is on > [Conguration>
PV options: Energy limit: Yes]. Note that the function is not available in cascading
mode.
Note, the rated parameters of the device are used to calculate the energy
consumption, in case of deviations, there will be slight discreptancy from the
indications of the measuring devices of the grid operator.
Adjusting boiler parameters to user preferences.

PL-090B_f. 17
CH program No1
CH program No1
Koniec
Koniec
1 6:00 - 9:15
2 15:20 - 22:15
2 15:20 - 22:15
12341 - no. of time frame according to schedule (max 5)
2 - time of starting the selected temperature
3 - time of nishing the selected temperature
4 - temperature selection: , , ,
• Buffer load program (only available in buffer mode [Conguration > Working mode:
Buffer]).
- No.1...No.8 - setting of 8 daily programs, in each daily program there are available
5 time frames in which the buffer will be charged.
Buffer load program No1
Buffer load program No1
Koniec
Koniec
1 6:00 - 8:00
2 18:30 - 23:00
2 18:30 - 23:00
123
1 - the number of the time interval (max.5)
2 - buffer charging start time
3 - buffer charging nish time
- Weekly: assigning for each day of the week one of the previously set daily programs.
Setting up daily programs procedure is described in Daily Schedule paragraph.
- Weekly: assigning for each day of the week one of the previously set daily programs.
Setting up daily programs procedure is described in Daily Schedule paragraph.
• CH program (only available in basic mode with activated sensor Tr) [Conguration>
Room temp.> Temp. sensor> Tr]:
- No. 1...No. 8 > setting 8 daily programs. In each daily program there are 5 editable
time frames, which can have one of the room temperature sets ( ,,,). In any
other case, the economy temperature will be activated ( ).

18
DHW program No1
DHW program No1
Koniec
Koniec
1 6:20 - 8:00
2 18:30 - 23:00
2 18:30 - 23:00
12341 - the number of the time frame (max.5)
2 - start time of the selected temperature
3 - nish time of the selected temperature
4 - temperature selection: ,
• DHW program (only available in DHW cylinder systems with internal adjustment
activated [Conguration > DHW cylinder > Regulation> Inside]).
- No. 1...No. 8 > setting 8 daily programs. In each daily program there are 5 editable
time frames, which can have one of the cylinder temperature sets ( ,)In any
other case, the economy temperature will be activated ( ).
1 - no. of time frame according to schedule (max 5)
2 - start time of circulation pump operation
3 - nish time of circulation pump operation
Circulation program No1
Circulation program No1
Koniec
Koniec
1 6:00 - 8:00
2 18:30 - 23:00
2 18:30 - 23:00
123
- Weekly: assigning for each day of the week one of the previously set daily programs.
Setting up daily programs procedure is described in Daily Schedule paragraph.
- Weekly: assigning for each day of the week one of the previously set daily programs.
Setting up daily programs procedure is described in Daily Schedule paragraph.
• Circulation program: DHW circulation pump schedule, available only within active
circulation in DHW system [Conguration > Circulation > Yes].
- No. 1 ... No. 8> setting of 8 daily programs in each daily program. There are 5
adjustable time frames in which the circulation pump will work.

PL-090B_f. 19
• Disinfection (only available in systems with DHW cylinder):
- Temperature: the value of the temperature in the tank during disinfection,
- Week day: the day for disinfection during automatic program,
- Hour: the time of disinfection in automatic program,
- Working time: time of disinfection (calculated from the moment the temperature
has reached disinfection value),
- Automatic mode: automatic start of disinfection at the set time (time, day of the
week),
- Ciculation: disinfection of the entire DHW installation or only the DHW cylinder
(available only with active circulation),
- Activate now: manual start of disinfection (independent of the day or time set).
• Time/Date:
- - setting of the current system time (YEAR / MONTH/ DAY / HOUR).
• Interface:
- Brightness min: setting the brightness of the display in stand-by mode.
- Brightness max: setting the brightness of the display during the work.
- Sound: Yes> On / No> Off
- Dial sensitivity: 1 - high / 4 - low.
• Language:
- menu language setting
• System:
- Type: EKCO.Mx3 (ID)
- MSK program: boiler’s driver version
- PW program: the version of panel’s program
- Max rated power: boiler’s set rated power
- Pump type: type of pump installed in the CH system
- Reset: boiler’s start-up
- Factory settings: restore to factory settings

20
Configuration
Configuration
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9:37 Thu 22.04.2021
CONFIGURATION:
Conguration: adaptation of the boiler to the heating
system in the facility.
* Changes in the conguration menu are possible after entering an access code. When prompted
for an access code, turn the navigation dial to the required code and conrm the code by pressing
the dial. If you want to retract from the code request screen, hold the navigation dial or wait until
automatic return to main function screen.
Code : 987
• Buffer (available only in buffer mode [Conguration > Working mode: Buffer]):
- Buffer temp.: temperature of the buffer charging medium.
- Load off-program:
Yes - consent to work outside the schedule with parameters according to the
needs of the heating modules
No-charging in time frames according to program
• Central heating:
- Weather comp.*: Choice of heating curve.
- Offset*: offset of the heating curve.
- Max boiler temp.: maximum CH temperature.
Attention: adjustment of too high temperature parameters not compatible with
the type of building, central heating installation and building’s insulation may lead
to high exploitation costs.
- Set boiler temp.: Temperature in CH installation when cooperating with constant
parameters and in emergency conditions.
- Regulation: Per curve / Constant.
Per curve > temperature in CH installation is calculated on the basis of outside
temperature and heating curve parameter.
Constant > temperature in CH installation is equal to SET BOILER TEMP
- Frost protection: frost protection of the building ON.
* not available in buffer mode