Kospel EKD.M3 User manual

Bi-functional Electric Central Heating Flow Boiler
EKD.M3
Assembly and operating instructions

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.
This appliance is not intended for use by persons
(including children with reduced physical, sensory
or mental capabilities, or lack of experience and
knowledge) unless they have been given supervi-
sion or instruction concerning use of the appliance
by the person responsible for their safety. Children
should be supervised to ensure they do not play
with the appliance.

3
GB-088B_f.
Safety instructions
1. Read and strictly follow this installation and operating instructions to ensure
a long life and reliable boiler operation.
2. An efcient electrical installation which has been completed in accordance with
the binding.
3. Central heating system equipped with an appropriate expansion vessel completed
in accordance with binding norms 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 must be installed in such a place and in such a way in order not to ood
the room in case of the emergency water leak.
9. Boiler must be connected to water system and central heating system in
accordance with the manufacturer's instructions. Failure to do so deprives the
user from the warranty rights and may cause device's damage.
10. Installation of the device to the water supply must be compatible with all relevant
regulations in force.
11. Maximum pressure of the hot water storage must not exceed 0,3 MPa. If system's
pressure is higher than 0,6MPa, pressure reducing valve must be tted before
cylinder.
12. Water dripping from safety valves' down pipe is a natural occurrence and it should
not be stopped, as its blockage may lead to the device's failure.
13. It is forbidden to use the hot water storage if you suspect that safety valves may
be faulty.
14. The tank is equipped with a magnesium anode - an additional protection against
corrosion. The anode is an operating part, therefore, it is exposed to wear.
The condition of the magnesium anode should be controlled every 12 months,
however, it is due to be replaced with a new one every 18 months.
15. The boiler installation and electrical and hydraulic work must be performed by
a qualied professional installer in accordance with all instructions provided by
the manufacturer.
16. All installation work must be performed when the power and water supply are
turned off.
17. 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 3 mm).
18. Do not drain the water from central heating system after the heating season.
19. Leave the controller in stand-by mode and do not cut off power supply between
the heating seasons. Proceeding otherwise may result in pump's rotor blockage.

4
Boiler EKD is equipped with expansion vessels for central heating system and for DHW
(12 l capacity). The expansion vessel installed within the boiler for the central heating
system is sufcient only for the following capacities of the heating system at given
temperatures of the medium and at given pressure of central heating system.
Shall the capacity of the central heating installation be larger, an extra expansion
vessel must be installed (in accordance with binding norms).
If the boiler is to co-operate with under oor heating, it is necessary to install safety
armature.
Temperature of heating medium
(supply and return)
Capacity of central
heating system
Pressure in central
heating system
[°C] [l] [bar]
85/70 116
1,5
70/55 158
55/45 206
50/40 230
45/35 256
1. Install the boiler on the solid surface,
maintaining clearances from the
walls and the ceiling. Set the device
horizontally by adjusting device's
regulation feet.
2. Connect the boiler to the central
heating system equipped with
cut-off valves. Description of the
connectors on page 5 and 10.
3. Fill the central heating system with
treated water or ERGOLID EKO
liquid- it substantially extends the
life of the heating elements.
4. Vent the central heating system.
min.100
min.100
200
min.50
580
1745
630
60
Installation
Installation notes
45 100 84 84 60 60 90 55
60

5
GB-088B_f.
circulation
domestic hot water
cold water
return of heating medium
heating medium
supply
coil's supply- external heating
source
5. Boiler's installation to the water
system has to be carried out in
accordance with valid norms
safety valve must be installed on
cold water inlet.
6. Hot water outlet has to be
connected to the 3/4″connection
which is placed next to the
supplying connection.
7. If in the DHW system there is
a circuit, it has to be connected to
the 3/4″ connection which is placed
next to the hot water connection,
whereas the circuit pump has to
be connected to CYRK clasp on
the terminal block.
8. Extend the pipes placed on the
back wall of the device, responsible
for safety valve's leak, and locate
them as near the oor drain as
it's possible. (Safe and reliable
operation, point 12.).
9. Connect the boiler to the electrical
system.
10. Fix internal (room) and external
temperature sensors and other
external appliances which
cooperate acc. to 'Connection of
external appliances & Controls'.
11. Once the abo ve ste ps are
completed, you can start the boiler
and perform venting procedure.
(Conguration-Pump-Venting)
12. Set the max. temperature of the
heating medium in the installation
(Conguration-Central heating-
Max power temperature).
EKD EKD

6
1
NL
2
PNL
1
NL
PNL
Connection to the three-phase electrical system.
PNL - points of neutral and protective conductor
connection
PF - points of phase conductors connection
[1] - temperature limiter (for boilers of 4kW,
6kW and 8kW- additional conductors
[2] have to be removed and phase-
switches for the electrical installation
have to be changed from single-phase
to three-phase)
Connection to the single phase electrical system
(for boilers of 4kW,6kW and 8kW)
PNL - connection points of neutral, protective,
and phase conductors
[1] - temperature limiter
[2] - additional conductors (for single phase
system only)
FUN MA RT Tcyl Tos Tr
M.SUPPLY PUMP.C TWV PUMP
L N PE L N PE LB LA N L N PE PUMP
O G I
External devices' inlets
Terminal block
→
→
A B AC
→
Boiler's remote control
L N PE
Circulation
pump
Type of electrical installation- switch No.3 3 phase
1 phase
RS 485 terminator- switch No. 4 (see ope-
rating manual for the module connected to
the socket of boiler's remote control)
ON
OFF
→
NOTE: switch No. 1 and No. 2 must not be changed!- factory
settings must be retained.

7
GB-088B_f.
Temperature sensors
Temperature sensor’s wiring should be as short as possible, it should not be led close
to the power cord and it must not be twisted around other wires. Install the outside
temperature sensor (Tos) in the shade, on the north or northwestern facade of the
building, away from windows and ventilators. Install the room temperature sensor (Tr)
in a representative room in the building (such as a living room), away from heaters,
windows, doors, and communication lines.
Master appliance (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 (voltage free
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.
External adjustment of selected room temperature (inlet FUN) - Closing FUN
contact shifts boiler's work to the mode of maintaining the temperature previously
set in the conguration menu (Conguration>FUN entry)
Room thermostat (entry RT) - This optional entry is responsible for boiler's control
depending on the room temperature. The entry has to be activated (Conguration>Room
temperature>Set outside room sensor)- when the voltage-free contact gets opened, the
boiler stops heating. Due to such adjustments, central heating system works with stable
parameters. (Conguration>CH circulation>Power temperature MAN).
Boiler's remote control - In order to control boiler's work remotely via online web
page, it is possible to connect the boiler to the internet module (MI). Installation of MI
module is described in the module's manual.

!
Connection of external appliances
Tr
Tos
FUN
A B AC
FUN MA RT Tcyl Tos Tr
MA
RT Tcyl
FUN - external adjustment of selected
room temperature
MA - master appliance
RT - alternative room thermostat
Tcyl - cylinder's temperature sensor
Tos - outside temperature sensor
Tr - room temperature sensor
Under no circumstances should
any voltage be connected to
these terminals (FUN, MA, RT,
Tcyl, Tos, Tr), as this will result in
the damage of boiler's controller.

8
Operation
Boilers are safe and reliable devices provided that the users follow the regulations
below:
• The wear condition of the anode must be inspected annually.
• The anode must be replaced once every 18 months.
• Heat up the water above 70°C periodically for hygiene reasons.
• Failures or malfunctions notify to the manufacturer's service.
Above activities are beyond of the scope of warranty service (should be done by
the user).
1
2

9
GB-088B_f.
34
5
Anode rod replacement
• Take off the front lid by loosening
the bottom screw (1). Tilt bottom
edge of the lid and lift it up, so as
to take it out of the lashing points
(2).
• Disconnect protective conductor
from the bottom and upper lid.
• Undo two screws holding upper lid
(3) (4) and take the lid out by tilting
it towards the back (5).
• Turn off the cut-off valve on cold
water supply pipe, turn on the
hot water valve (mixer tap), turn
the drain valve on [9], drain as
much water as you need to easily
unscrew the anode rod (avoiding
room ooding). Remove the cork
and unscrew the anode rod [7].
7

10
1
7
8
2
6
5
4
3
10
9
11
domestic hot water
cold water
coil's external heat source supply
power supply cable
circulation
heating medium supply
heating medium return
[1] - expansion vessel (DHW)
[2] - expansion vessel (CH)
[3] - pump (CH)
[4] - power board
[5] - safety valve CH 3bar
[6] - safety valve DHW 6bar
[7] - anode
[8] - electrical connection
[9] - drain valve DHW
[10] - drain valve CH
[11] - pipes conducting leakage from the
safety valves

11
GB-088B_f.
Control panel
2
3
9:37 TUE 22,08,2017
24.2 °
5,1°
60°
1
Use the operating dial [3] to set one of the
modes: winter + / summer / off .
By turning the navigation dial [2] (left or
right), with winter or summer mode active,
change between function screens on the
display [1].
- main: informs about the basic
parameters of the boiler (see details
in the table),
- settings: allows to adjust the parameters
of the boiler to user’s preferences,
- service / conguration: allows
conguration of the system heating to
the conditions of the facility (available
for specialized services) and preview
of boiler’s input and output signals,
- party / holiday / manual: allows
to quickly switch work algorithm
depending on user's needs.
1 - display
2 - navigation dial to preview dial and set-
tings
3 - operating dial to choose working mode
Entering individual functions takes place after selecting a corresponding function
screen and pressing the navigation dial.
Boiler's error is signaled on the main function screen. After pressing the navigation
dial, there is a list of detected errors available.

12
Heat reception
Hot water heating/ storage heating
Central installation heating
Executing of a heating program
According to a set daily/ weekly schedule
PARTY - keeping the room and storage temperature comfortable
HOLIDAY - keeping the room and storage temperature economical or frost-proof
MANUAL - keeping the set room temperature
TURBO - heating up the maximum parameters until the set room temperature is
reached
Implementation of the frost protection program
Storage disinfection
Circulation pump venting
Temperature settings for the room
Frost protection
Economic temperature
Comfort temperature
Comfort temperature plus
Comfort temperature minus
[1] - heat reception
[2] - executing of a heating program
[3] - temperature settings for the room
[4] - room temperature
[5] - outside temperature
[6] - storage temperature
Main screen
9:37 TUE 22,08,2017
24.2°
5,1°
60°
5
34
21 6

13
GB-088B_f.
8:38 THU 24,08,2017
Settings
SETTINGS:
● ROOM TEMP:
- Economic , Comfort - , Comfort
, Comfort+ : setting room
temperature values in available
schedules,
- Party, Holidays: select temperature
parameters for programs: PARTY &
HOLIDAYS
● TANK TEMP:
- Economic , Comfort : setting hot
water temperature values available in
schedules,
● CH PROGRAM:
- 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 economic
temperature will be activated ( ).
Setting up daily programs procedure is
described in Daily Schedule paragraph.
- Weekly: assigning for each week day one
of the previously set daily programs.
CH Program No.1
END
1 6:00 - 9:15
2 15:20 - 22:15
1234
[1] - no. of time frame according to schedule
(max 5)
[2] - time of starting the selected temperature
[3] - time of nishing the selected tempera-
ture
[4] - temperature selection , , ,
Device’s error indication
Circulation pump operation indication
Heating on indication
Adjusting boiler’s parameters to user’s
preferences

14
DHW TANK PROGRAM No.1
END
1 6:20 - 8:00
2 18:30 - 23:00
1234
[1] - no. of time frame according to
schedule (max 5)
[2] - time of starting the selected tem-
perature
[3] - time of nishing the selected tem-
perature
[4] - temperature selection: ,
● DHW TANK PROGRAM (available only for
storage tank systems):
- No. 1...No. 8 > setting 8 daily programs.
In each daily program there are 5
editable time frames, which can have
one of the storage tank’s temperatures
set ( , ). In any other case, the
economic temperature will be activated
().
Setting up daily programs procedure is
described in Daily Schedule paragraph.
- Weekly: assigning for each day of the
week one of the set daily programs or
a permanent program 9 (ECO).
Program No. 9 ECO is factory-set and
it optimizes boiler’s operation while
domestic hot water is heated in order to
achieve the best possible energy efciency class in accordance with the terms
of the ErP Directive. Individual (customized to user’s needs) switching time and
water temperature programming can decrease or increase energy consumption.
No 9 ECO Program Schedule
00:00 - 10.00 Tcwu = 40°C
10:01 - 11.00 Tcwu = 64°C
11:01 - 20.00 Tcwu = 40°C
20:01 - 21:35 Tcwu = 64°C
21:36 - 23:59 Tcwu = 40°C
● CIRCULATION PROGRAM (available only
with the active circulation within DHW system):
- No. 1...No. 8 > setting 8 daily programs.
In each daily program there are 5
editable time frames, in which circulation
pump is on. Setting up daily programs
procedure is described in Daily
schedule paragraph.
- Weekly: assigning for each week day
one of the previously set daily programs.
[1] - no. of time frame according to schedule
(max 5)
[2] - time of starting the work of circulation
pump
[3] - time of nishing the work of circulation
pump
CIRCULATION PROGRAM No.1
END
1 6:00 - 8:00
2 18:30 - 23:00
123

15
GB-088B_f.
● DISINFECTION (available only in storage tank systems):
- Temperature: temperature of the storage tank during disinfection,
- Day of the week: day of the week of automatic disinfection,
- Time: time of automatic disinfection,
- Working time: disinfection duration,
- Automatic operation: start disinfection automatically at a given time (Hour, Day
of the week),
- Circulation (available only with the active circulation switched on): a possibility
to select disinfection of either the whole installation or just the hot water storage.
- Start now: start disinfection manually (irrespective of a day and time set
previously).
● DATE/ TIME:
- setting current system time (year, month, day of the month and day of the
week, hour).
● INTERFACE:
- Brightness MIN: setting the brightness of the display in stand by mode
- Brightness MAX: setting the brightness of the display in working mode
- Sound: acoustic sound of the dial: YES/NO
- Dial sensitivity: 1- high / 4- low
● LANGUAGE:
- select menu language.
● SYSTEM:
- MSK program: shows program version of boiler's controller,
- PW program: shows panel's software version,
- Max power: shows set boiler power,
- Auto change of time: yes -> automatic switching of system time from summer
to winter and vice versa,
- Reset: restarts the boiler,
- Factory settings: return to factory settings.

16
8:38 THU 24,08,2017
PARTY/HOLIDAY/MANUAL
PARTY / HOLIDAY / MANUAL
Fast changing of the workow algorithm
according to needs.
● PARTY:
setting mode duration (from 1 to 24 hours
or until cancelled)
● HOLIDAYS:
setting mode duration (from 1 to 60 days or until cancelled).
● MANUAL:
Set the room temperature by the system control - until cancelled.
● TURBO:
turning on the place’s heating up with max parameters - until reaching the set
room temperature.
* If any of the above modes are ON, then after entering ‘Party / Holiday / Manual’ there is a possibility
to turn it off, and in case of setting the manual mode, it is also possible to change the set temperature.
* Mode symbol is indicated on the main function screen.
8:38 THU 24,08,2017
SERVICE/CONFIGURATION
SERVICE / CONFIGURATION
Preview of parameters:
preview of input and output signals of the boiler.
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.)
● CENTRAL HEATING:
- NO OF HEATING: selection of the heating curve.
- HEATING CURVE: shift of the heating curve.
- MAX POWER TEMP: maximal central heating system temperature
- POWER TEMP MANUAL: temperature in the installation while operating with
constant parameters and in emergency conditions.
- REGULATION: per curve -> the temperature in the installation is calculated on
the basis of the outside temperature taking into account heating curve settings
/ Constant parameters - the temperature in the installation is equal to power
temperature manual.

17
GB-088B_f.
- OUTSIDE TEMP OFF - outside temperature settings above which central
heating circulation is off.
- FROST PROTECTION: turn on frost protection of the facility.
● HOT WATER TANK:
- POWER TEMPERATURE: setting coil’s supply temperature.
- REGULATION: regulation of the temperature in the storage- INSIDE ->
acc. to Tzas/OUTSIDE> acc. to outside thermostat (with OUTSIDE settings
unavailable menu positions: tank temperature, DHW tank program, disinfection,
and manual)
- UNTIL CALL OFF - turn off the storage circuit.
* If Hot Water Tank function is off - menu will only show a possibility to turn it
on (‘Turn on’).
● CIRCULATION: switching the circulation 'on' or 'off'
● ROOM TEMP:
- ROOM TEMP CONTROL: yes -> heating turned off after reaching the set room
temperature.
- ROOM TEMP HYSTERESIS: room temperature hysteresis with 'ROOM TEMP
CONTROL’ on.
- SET OUTSIDE ROOM SENSOR: shifting boiler's control to the external
regulator (RP clasp)
* If OUTSIDE regulator is 'on'- menu will only allow switching to INSIDE regulator
(set INSIDE ROOM SENSOR), after its selection and re-entering MENU items-
select settings of the remaining parameters.
● TURBO:
- ROOM TEMP HYSTERESIS: room temperature fall triggers this function.
- HOT WATER TANK: No - turns off hot water for the Turbo function.
- UNTI CALL OFF - turns off automatic Turbo function.
* If Turbo function is off - menu will only show a posiibility to turn it on (‘On’).
● PUMP:
- PUMPS PROTECTION: time to turn the pump on for a short time at a longer
standstill (protection against blocking).
- AUTOMATIC MODE: yes -> works according to user’s needs / no -> works
constantly.
- TYPE: pump’s type.
- REGULATION: constant p. -> constant pressure / variable p. -> variable
pressure.
In the regulation mode (constant p.), the pressure difference produced by
the pump is maintained at the constant set level in terms of performance to
pump’s maximum characteristics. This type of regulation is recommended
for oor heating circulations or older heating systems with pipes of larger
diameters, as well as for all applications with constant characteristics. In the
regulation mode (variable p.) the pressure difference produced by the pump
is maintained at the level of settings changing linearly between 1/2H and H.
Setting pressure differences decreases or increases depending on the ow.

18
This regulation type is recommended for heating systems with heaters, thanks
to which ow noise in thermostatic valves is reduced.
- VENTING: ON/OFF.
During venting procedure (10 min) the pump works alternately with a maximal
and minimal rotation speed. Thanks to this air bubbles are concentrated and
easier to remove from the installation.
- HMAX- pump’s raising height.
● MAX RATED POWER: setting heater’s rated power.
● COMMUNICATION:
- device number: device's number on the mains (setting ‘0’ turns off the mains
service).
- speed: transmission speed on the mains.
● INLET FUN: selection of reaction to closing FUN inlet: either setting economy
temperature or frost protection.
● PRESSURE CONTROL: no->switching the control off- pressure control should
be switched off only when boiler works in the open installation
Exit any menu item by pressing ′End′ or by pressing and holding the navigation
dial. When not operated by the user, main function screen will appear after
about 3 min.
Start-up
With the start-up of the boiler or after the restoration of the factory settings it is
necessary to select MENU's language and boiler's rated power. Boiler is ready to
work properly only after selection of these parameters.

19
GB-088B_f.
For central heating circulation and hot water
tank in a daily harmonogram set starting time
(3) and nishing time (4) of maintaining chosen
temperature (5) in the room (central heating) or
of hot water (storage). Outside these periodically
set values, economy temperature will be kept
both in the room and the storage. To change
daily program select with the navigation dial
chosen time period and conrm it by pressing
the dial. The edition screen ashes, use the
navigation dial to set new value (hour and
minutes separately) and conrm it by pressing
the dial. At the same time, next screen starts to
ash allowing edition of next parameters.
Last editable time position is a command.
To conm changes use the dial to select
a command, ′accept′ and press the dial to
nish editing.
To delete time settings edit a given time, then,
by pressing the dial, get to commands, choose
′delete′ , and conrm it by pressing the dial.
To add new time settings, choose previous
time position, then by turning the dial go to
commands, choose ′add′ , and by pressing
the dial add new time settings, which can be
adjusted to user’s needs (description above).
Daily schedule:
CH PROGRAM No.1
END
1 6:00 - 9:15
2 15:20 - 22:15
23456
1
[1] - time period panel
[2] - no. of time frame according to
schedule (max 5)
[3] - time of starting the selected tem-
perature
[4] - time of finishing the selected tem-
perature
[5] - temperature selection
[6] - command (active when editing):
accept
delete
add

20
If there are no time frames set in daily schedule
yet, then comfortable temperature will be set
after choosing ‘New’ for the duration of 24 hours.
The entire daily program is saved in the
controller’s memory at the moment of exit
from the daily program, after pressing END
command.
CH PROGRAM No.3
END
1 0:00 - 23:59
CH PROGRAM No.1
END
1 6:00 - 9:15
2 15:20 - 22:15
TURBO function
If the facility is cold and if it is necessary to heat it up quickly, there is a possibility to
turn on the TURBO function. This function, when conditions to turn on the heating are
fullled, starts central heating installation with maximum parameters and continues
until required temperature is reached in a room. This function can start automatically
when room’s temperature falls down by the set room temperature hysteresis.
Automatic work is set in menu CONFIGURATION > TURBO. Selection of 'Hot water
tank- NO' will result in switching off hot water heating priority for the time of using Turbo
function. In menu Party/Holidays/Manual it is possible to turn on this function manually
(without hot water heating up priority), on condition that the room’s temperature is
lower than the programmed one. Sensor Tpok is required to turn on Turbo function.
Frost protection
In the standby and summer mode, when the temperature drops below 7°C central
heating circuit will be switched on. Room temperature sensor is required to activate this
function. If the boiler is controlled by the outside sensor, this function is not available.
Code : 987