Varmebaronen EK 15 E Instruction Manual

Installation and maintenance
EK 15 E
Electric flow heater- 7-stage
14.7kW
1212_EK15E_191017_en
pwr:1.14/ 1.15
dsp:1.05
p-typ: 4

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Värmebaronen EK 15E
Contents
Tel:
Notes
Manufacturing number:
Installation date:
Installation engineer:
Other:
Filled in when EK 15E is installed
Safety and handling ............................................................3
Function ...............................................................................3
Menu- handling ..................................................................4
Handling
Indicators and buttons
Menus
Menu row
Editable value
User level
Service level
Advanced Service Level
Screen saver
Menu-User Level .................................................................6
Menu item- Service level ...................................................8
Menu-Advanced Service level ............................................9
Operation and maintenance ...............................................10
Start
Connection delay
Circulation pump
Load guard
Stage restriction
Output limitation/ Output control, 0-10V
Desired boiler temperature
Outdoor temperature compensator setpoints, UTK
Alternative temperature
Alternative temperature with room unit
Optional Room Unit
Over temperature protection
Overheating protection
Action in the event of a risk of freezing
Frost protection- heating systems
General.................................................................................12
Water quality
Suitable water line quality:
Flow requirements
Flow direction
Expansion system
Open system
Closed system
System principles
Radiator system
Underfloor heating system
With boiler
Pipe installation...................................................................13
Electrical installation ..........................................................14
Circulation pump 230V~
Optional Room Unit
Output limitation/ Output control, 0-10V
Blockage
0-10V signal of connected output
Current Transformers- Load Guard
Wiring diagram ....................................................................15
Electrical connections on immersion heaters
Troubleshooting- Warning, limitation and alarms............16
Troubleshooting...................................................................17
Technical data .....................................................................18

general
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Värmebaronen EK 15E
Read these instructions carefully before installation
andoperation!
Keep these instructions at the electric ow heater!
Check that the electric ow heater has not been
damaged during transport. Report any transport
damageto the carrier.
Check that the delivery is complete.
All installation must be performed by an authorised
person in accordance with the existing regulations.
Never disable the safety equipment!
The electric ow heater must never be switched off
electrically unless the heating system is full and the
owheater vented.
Correct installation in combination with correct
adjustment and continuous service will produce high
operational reliability and good heating economy.
The electric ow heater must not be modied, changed
or converted in any way.
Only authorised persons may carry out work on the
electric ow heater.
Ensure the power to the electric ow heater is switched
off before service/ repair.
Never carry out maintenance work/ service on
pressure-bearing parts when they are pressurised.
The electric ow heater may not be used by children
or people with physical or mental impairments.
Norbychildren/ people who lack knowledge about
theelectric ow heater.
Children may not play with the electric ow heater
andconnect accessories.
Always contact your installation engineer for service.
The type and manufacturer's number of the electric
ow heater must always be specied when contacting
Värmebaronen. See the rating plate
Värmebaronen AB reserves the right to change the
specication, in accordance with its policy of continuous
improvement and development, without prior notice.
The following icons are used in these instructions
toindicate important information:
Information that is important for optimum
operation.
Tells you what you should or should not do
toavoid personal injury.
Tells you what you should or should not do to
prevent a component, the electric ow heater,
aprocess or the environment from being
damaged or destroyed.
Electrical hazard!
Safety and handling
Function
Electric flow heater EK 15
Output 14.7kW, divided into seven 2.1kW stages, which are
controlled via an electronic temperature control, 20-95°C.
Can easily be climate controlled.
Load guard with current transformers included.
All-pole switch.
Operation/ status indication.
Stainless electric flow heater.
Connection for external blocking connection or output
control0-10V.
Output signal for external display of connected output.
Overheating protection with alarm indication.
A low water volume and well-insulated tank mean
lowheatloss.
Brackets for wall mounting included.
Compact format.
Simple connection
Mounted on the wall with included brackets.
Has connection for front/ safety line on top, return line
isonthe bottom.
Temperature control
The temperature control regulates output connection in
sevenstages.
Available accessories include an outdoor temperature sensor,
which allows the temperature of the electric flow heater to
be determined by the outdoor temperature and the selected
heat curve, UTK. A room unit is also available that, when
used with the UTK function, increases heating comfort at
the lowest possible energy consumption by utilising passive
heatfrom, e.g., solar radiation. The unit also reduces
variations in room temperature caused by wind.
The electronic controls contain an over temperature function,
which switches off selected output if the boiler temperature
exceeds the setpoint with an adjustable value. When the over
temperature ceases, the output is automatically reconnected.
When any of these functions take effect, the status indicator
blinks to indicate this.
Accessories
Outdoor temperature sensor
Room device.

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Värmebaronen EK 15E
Menu- handling
Handling
Indicators and buttons
Green Permanently
on
The electric flow heater has voltage.
Flashing Output connection is restricted.
Yellow Permanently
on
Displays a modifiable parameter.
In row 0, solid yellow means that
awarning is acknowledged but
thecause remains.
Fast flashing Parameter has been changed but
notacknowledged .
Flashing Warning
Red Flashing Alarm, which has not been
acknowledged.
Permanently
on
Acknowledged alarm as long as
thecause has not been corrected.
The buttons are used to navigate the menus:
moves up in the menu list.
moves down in the menu list.
decreases the value.
increases the value.
acknowledges the changed value.
Menus
The menu system consists of three levels: the User level,
Service level and Advanced service level.
Menu row
Each menu contains a number of rows. The menu bar
number appears on the display, followed by a decimal
pointand a value. At larger values, the display switches
between displaying the row number and its value.
Editable value
An editable menu row is indicated by the yellow indicator
light. When the value is changed, the indicator flashes.
The new value is only applied after confirming by pressing .
The old value is removed if the row is left with or .
User level
Reading and modification of the most common parameters.
Menu row 0 is the row that normally appears, and the menu
automatically returns here from other menus if no button
isselected for a certain period of time.
Service level
This is where the parameters are found that are usually
adjusted when commissioning the electric flow heater.
Access to "Service level" is obtained by simultaneously
pressing in any menu row in "User level" and .
The same action is used to return to "User Level".
Advanced Service Level
Settings used less frequently and manual run output
steppingand circulation pump.
Access to the "Advanced Service level" is obtained by setting
the value "21" in the last menu bar, 12, in "Service level".
Return to the menu item "Service level" is done by going
back with .
Return to "User level" is done by simultaneously pressing
and .
Screen saver
The screen saver will be activated 15 minutes after the
lastbutton press.
The menu returns to display of the current boiler
temperature.
"21-lock" for "Advanced service level" is reset.
If there are no unacknowledged alarms, the display will
turnoff and only the indicators will be lit.

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Värmebaronen EK 15E
menus
Alarm
If several simultaneous alarms/ warnings/ restrictions are
active, only the first code is shown in the list. Scroll using
to see other alarms.
A red indicator flashes when one or more alarms are active.
The display switches to display the menu bar (row-1) where
the current alarm codes are displayed. If more than one
alarm is active at the same time, the alarm row will switch
content and display all current alarm codes according to
arolling schedule.
Once the cause of the alarm is resolved and is
acknowledgedwith OK, the red indicator stops flashing.
Thedisplay will return to its normal display.
Acknowledgement of alarms
Acknowledge active alarms by pressing the OK button
when the alarm row is displayed. All active alarms are
acknowledged at the same time. The red indicator will
stopflashing and return to solid. The display remains
onthealarm row and displays the alarm code(s). Once all
activealarms are resolved, the red indicator turns off.
The user can use the menu system as usual even during
anactive alarm.
Menu- handling

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Värmebaronen EK 15E
Menu - User Level
Current boiler temperature, display.
Desired boiler temperature, setpoint, 20-95°C, adjustment
For electric flow heaters with UTK, a calculated boiler temperature setpoint is displayed.
20
Current number of connected output stages, 0-7, display
Step 1234567
Power output 2.1 4.2 6.3 8.4 10.5 12.6 14.7 kW
Current level for external 0-10V control signal, 0-100%, display
Current electrical current, amps, in the highest load phase, 0-50 A, display
Requires that the current transformers are connected.
UTK function switched off, see Advanced Service Level row 15.
Current outdoor temperature, °C, requires outdoor temperature sensor-50-50°C, display
UTK function switched off, see Advanced Service Level row 15.
UTK, alternative temperature input status, display.
0: Not active.
1: The function is active, see "User level" row 9.
0
UTK function switched off, see Advanced Service Level row 15.
Level curve, parallel displacement, 5-30, adjustment 20
UTK function switched off, see Advanced Service Level row 15.
Curve, higher value provides warmer temperatures for cold outdoor temperatures, 20-60, adjustment 38
The flow temperature is calculated according to the current outdoor temperature, settings for the curve and
leveland room temperature. The supply line temperature can be min/ max limited.
10
20
30
40
50
60
70
80
-30-20-10
0
10
20
F 50 F 40 F 30
°C
°C
The diagram shows the curves F30, F40 and F50 at Level= 20.
Curve F30 aims for a supply temperature of 30°C at an outdoor temperature of ±0°C. The corresponding
temperatures for curves F40 and F50 are 40°C and 50°C respectively.
The vertical axis shows the supply line temperature and the horizontal axis shows the outdoor temperature.
Heating curve
The heating system's dimensioned supply line temperature is used as the initial value. If the value is not
known, general values are used. If the room is not at the desired temperature, additional adjustment is needed.
Waitatleast one day between adjustments so that temperatures have time to stabilize.
Delivery setting

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Värmebaronen EK 15E
menus
Menu - User Level
Initial values
Dimensioned values, select a curve that provides the desired supply line temperature.
Unknown values - floor heating systems, Select a curve that provides a temp. of 40°C for wooden
joistsand30°C for concrete slab in the supply line temperature on the coldest day.
Unknown values - Radiator system, select a curve that provides a 55°C supply temperature for a low
temperature system on the "coldest day" and a 70°C supply temperature for a high temperate system.
The 'coldest day' is the lowest temperature that normally occurs in the location.
Adjustment of basic setting
For low temperatures, select a higher level. An increase in the room temperature can be limited
bythethermostats for the radiators or underfloor heating.
For high temperatures, select a lower level.
If the room is not at the desired temperature, additional adjustment is needed. Wait at least one
daybetweenadjustments so that temperatures have time to stabilize.
UTK function switched off, see Advanced Service Level row 15.
Alternative temperature--15-+15°C Adjustment
See "Outdoor temperature sensor and alternative heating" in "Electrical installation".
Closed input activates the function. Can be used for night-time reduction, holiday mode or similar,
see"Electrical installation"; "Alternative temperature".
Function without installed room unit: Shifts, parallel displacement, UTK curve level with a configurable
number of stages. This corresponds to a change in the room temperature by the approximate
corresponding number of degrees.
-5
Room unit not installed.
Room unit, current room temperature in whole degrees. 15-25°C, display
Room unit not installed.
Room unit, set temperature in whole degrees 15-25°C, display.
Adjustments are made using the room unit.
ECO-mode, adjustment
Standby mode, the electric flow heater holds at a temperature of 7°C.
The pump is turned off but is run every other day.
0: Off
1: On, the electric flow heater holds at a standby temperature of 7°C. The circulation pump is run every
other day for two minutes. Output is allowed to step in if external restriction and load guard allow.
0
Delivery setting

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Värmebaronen EK 15E
Menu item- Service level
Quick increase- Service mode, setting.
0: Off
1: On, speeds up step in/ step out rate for 15 minutes.
0
Temporary disconnection of connection delay after power on, service mode, adjustment.
See also "Advanced Service" level row 14.
0: Normal
1: Temporary disconnection
0
Load guard, the size of the main fuse in amps. Adjustment 0-50 25
Load guard, stage size current value expressed as one tenth ampere. DO NOT CHANGE! 31
Stage limitation, number of output stages, installed output, that the electric flow heater can work with-
settings 1-7
Step 1234567
Power output 2.1 4.2 6.3 8.4 10.5 12.6 14.7 kW
Current 36.05 9.1 12.1 15.1 18.1 21.2 A
7
UTK function switched off, see Advanced Service Level row 15.
UTK min-Limitation of the supply line temperature. Adjustment 10-50°C. 10
UTK function switched off, see Advanced Service Level row 15.
UTK Max-Limiting the supply line temperature. Adjustment 20-80°C. 70
UTK function switched off, see Advanced Service Level row 15.
Room unit, activate/ deactivate adjustment
0: No room unit or switched off
1: Room unit connected
0
UTK function switched off, see Advanced Service Level row 15.
UTK room unit P-factor, 1/ 10th°C/ °C. Adjustment 0-100 30
UTK function switched off.
UTK room unit I-factor, 1/ 10th°C/ °C/ h. Adjustment 0-100 10
Program Version power board, display
Enter 21, for access to "Advanced service level". 0
Delivery setting

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Värmebaronen EK 15E
menus
Menu - Advanced Service level
External control with 0-10V signal, adjustment.
0: Output limiting. The electric flow heater's temperature control is superior; the setpoint must
besetslightly higher than the required temperature.
1: Output control, only the overtemperature limit restricts.
See "Advanced Service level" rows 16 and 17.
0
Maximum output upon restart after power failure, 6kW directly exceeding connection delay, adjustment.
1: No connection delay.
2: One hour.
3: Two hours.
2
Select, fixed setpoint or UTK- function, adjustment
0: Fixed setpoint
1: UTK
0
Maximum boiler temperature, method, adjustment.
0: Absolute temperature.
1: Temperature relative to setpoint.
0
Maximum boiler temperature- adjustment 6-95°C
This setting is used by both methods according to row 16 above.
At "Absolute temperature", the selected temperature should not exceed 10°C.
10
Manual activation of rows 19 and 20. Adjustment
0: Off
1: Limited to 15 minutes
0
Manual activation/ test run of output stage- 0-7, adjustment, see row 18
+/- to step in/ out output stage.
Manual output connection is subordinate to all protective functions, i.e., if the load guard function
orovertemperature protection alarm is activated, the electric flow heater will step down in the
samewayasfor automatic operation.
0
Manual circulation pump, adjustment, see row 18.
0: Circulation pump off
1: Circulation pump on
0
-
-
Control of circulation pump- operation mode, adjustment.
0: Circulation pump follows output stage
The pump only starts when the first output stage is connected. The pump stops 30 minutes after the
electric flow heater becomes inactive. The circulation pump is run for two minutes every other day.
1: Circulation pump always on
1
Current temperature of power circuit board, display.
Delivery setting

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Värmebaronen EK 15E
Operation and maintenance
Before starting, check that the installation is in a
fullysatisfactory condition.
Ask the installation engineer to demonstrate
the controland functions so that you know how
thesystemworks and must be maintained.
Check:
• Boiler and heating system are filled with water,
ventedand that the pressure is correct.
• That all necessary valves are open.
• That any safety valves are working.
• That any external safety equipment is working
asintended.
• That the circulation pump is working and
theflowdirection is correct.
Start
Energised electric flow heater, the display illuminates
alongwith a green indicator.
A number of parameters are shown below that should
beconsidered when starting:
For installation/ configuration, see "Menu-
Management"!
• Stage restriction; "Service level" row 5.
• Load guard; "Service level" row 3.
• Circulation pump; "Advanced Service level"
rows20and23.
• External control/ Output control; "Advanced Service level"
row 13.
• ECO-mode; "User level" row 12.
Depending on whether the electric flow heater will be
controlled by a fixed or outdoor-compensated, UTK, setpoint.
For the UTK function, the electric flow heater must be
supplemented with an outdoor temperature sensor, optional.
• Desired boiler temperature; "User level" row 1.
• UTK; "Advanced service level" rows 5, 6, 7, 8 and 9
and"Service level" rows 6, 7 and 8.
• Room unit; "User level" rows 10 and 11 and
"Servicelevel"row 8.
The room unit is an option and requires that the
UTKfunction is activated.
Depending on the selected connection delay upon restart
after power failure, a connection delay can be applied for
output connection over 6kW, see "Advanced Service Level"
line 14.
For testing and service, the connection delay and
outputconnect/ disconnect can be temporarily sped up,
see"Service level" rows 1 and 2.
The electric flow heater should now step in the number
ofoutput stages needed until the temperature conforms
tothe set value.
Connection delay
According to the recommendations, a maximum of 6kW
ofthe output should be connected immediately after
avoltage loss.
See "Advanced Service level" row 14.
Circulation pump
Operating modes for circulation pump, see "Advanced
Service level" rows 20 and 23.
Load guard
The load guard protects the main fuses against overload
byreducing the electric flow heater's output. When the
overload ceases, the output is reconnected stage by stage.
See "Service level" row 3.
Stage restriction
The flow heater can be stage restricted in 1-7 stages.
Thenumber of stages selected corresponds to the installed
output. See "Service level" row 5.
Output limitation/ Output control, 0-10V
Output restriction; the electric flow heater's temperature
control is superior; the setpoint must be set slightly higher
than the required temperature.
Output control, only the overtemperature limit restricts. Used
together with another unit with its own temperature control.
See "Advanced Service level" row 13.
Desired boiler temperature
Desired boiler temperature, setpoint, see "User level" row 1.
Outdoor temperature compensator setpoints, UTK
The Elomax electric flow heater must be supplemented with
an outdoor temperature sensor-option. This function must
beactivated in the menu system.
See "Advanced level" rows 5, 6, 7, 8 and 9 and "Service
level" rows 6, 7 and 8.
Alternative temperature
This function requires that the UTK function is activated and
an external contact. Can be used for night-time reduction,
holiday mode or similar, see "User level" rows 6 and 9.

operation and maintenance
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Värmebaronen EK 15E
Alternative temperature with room unit
Upon activation, the centre point of the setpoint adjuster
ismoved by the set number of stages.
For example, the centre position of the handwheel is 20-6=
14°C if the alternative temperature parameter is set to-6.
Optional Room Unit
The control can be equipped with a room unit with a setpoint
adjuster, handwheel and an alarm indicator, which has the
same function as the red indicator on the front panel.
The room unit increases heating comfort with the lowest
possible energy consumption. Additional information is
included with the device.
Further information is provided with the room unit.
Theroomunit requires that the UTK function is activated.
Room unit; "User level" rows 10 and 11 and "Service level"
row 8.
Over temperature protection
The overtemperature protection supplements
theoverheatingprotection. The aim is to prevent the
overheatingprotection from triggering as far as possible.
The temperature at which over-temperature protection
is tripped can be set as a fixed value or in relation to the
setpoint. See "Advanced Service level" rows 16 and 17.
Safety valve
To maintain the safety function, safety valves in the heating
system must be operated regularly, about 4 times a year.
Venting- water pressure
Regularly check that the water pressure is correct.
Airmaybe left in the system for a while after installation,
forwhich reason it should be vented a few more times.
The pressure in a heating system varies with the
temperature. Do not add water unnecessarily!
Draining
If the heating system needs to be drained of water,
theelectric flow heater must first be switched off
sothattheimmersion heater is not damaged.
Operation and maintenance
Overheating protection
The electric flow heater's overheating protection is triggered
if the temperature exceeds approximately 100°C. Protection
is reset when the "reset plug" on the front panel is removed.
Reset can only be done when the temperature has fallen
below 80°C.
Always check the cause of a guard being
triggered! If the protection is triggered
repeatedly, the cause must be xed!
Action in the event of a risk of freezing
When it is extremely cold, no part of the heating system
mustbe switched off as there is a risk of bursting.
If you suspect that any part of the heating system is frozen,
contact an installation engineer.
If the heating system is to be switched off for an extended
period of time, the system should be drained or it can
befilled with water mixed with glycol.
The electric ow heater must not be operated
ifyou suspect that any part of the heating
system is frozen.
Call an installation engineer!
Frost protection- heating systems
If the heating system's water is mixed with glycol,
itisimportant to check that the glycol contains a suitable
quantity of corrosion-protection additive. When glycol
breaks down, one of the by-products is carbonic acid,
whichincreases the risk of corrosion.
Frost protection
The ECO function activates the frost protection automatically
when the boiler temperature is below 10°C. See "User level"
row 12.

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Värmebaronen EK 15E
General
Installation must take place according to existing
rulesand standards.
Heating systems can differ from one country to the
nextdue to climate, traditions and national regulations.
In cases where standards violate national regulations,
the latter must be followed. National and individual
requirements must be taken into account.
The electric ow heater must be located indoors
inasuitable location equipped with a oor drain.
The electric ow heater is mounted horizontally
sothatthe air that is released can circulate.
An system equipped with a closed expansion tank
must undergo an installation inspection prior to
rstoperation. The inspection must be carried out by
a person who is qualied for the task. The boiler or
expansion tank may not be replaced without another
inspection.
Valves must be tted between the ow heater and
theheating system.
Cables and pipes must be laid so that it is possible
toopen the front and remove the roof plate for service.
For installation and accessibility for service, there
must be at least 60 cm space above and in front of
thecartridge.
The electric ow heater is designed for non-
oxygenatedwater.
Water quality
Tap water is usually classified from the point of view
of hygiene. Good water classified on this basis is not
automatically suitable for a heating system. To avoid
problems a technical water analysis should take place.
Anynonconformities with standard values should be
corrected.
If the volume of the heating system is low, the boiler and
heating system may be filled with water that is not classified
as good boiler water. When the water is heated, some
oxygen and carbonic acid are emitted to the expansion tank
or vent valves. The remainder will react with the metals in
the system. This corrosion is often insignificant as the same
volume of water circulates and it soon becomes oxygen-free.
What is important is that the system is leak-proof so that
thewater is not replaced with new oxygen rich water and
thewater is not oxygenated during installation.
In large systems, it is impossible, in practice, to protect
against leaks and oxygen admission. In such cases,
anoxygen-consuming agent can be added so that there
isalways a slight surplus in the system. These agents
oftencontain corrosion-limiting additives.
Suitable water line quality:
Alkalinity ≥ 60 mg/ l to avoid corrosion.
Carbonic acid content > 25 mg/ l increase the risk of
corrosion.
Sulphate contents > 100 mg/ l may accelerate corrosion.
Ifthe sulphate content is higher than the alkalinity, there
isarisk of copper corrosion.
Hard water causes boiler scale and is not suitable in
aheating system.
Very soft water may cause corrosion damage.
Chloride levels above 100 mg/ l make the water aggressive,
especially together with lime deposits.
Low pH values may cause corrosion damage. The pH value
should be between 7.5 and 8.5.
The presence of carbonic acid in combination with low pH
and hardness values makes the water aggressive.
Flow requirements
The electric flow heater requires a constant adequate flow
tofunction properly. If the heating system's valves are able
tothrottle circulation, an overflow valve must be installed.
The circulation pump must press the water through the
cartridge with the flow direction shown in the system
diagram.
Flow that is too low increases the difference between
thedesired and the actual temperature, increases the risk
of that the overheating protection will be triggered and
the risk of irregular control resulting in increased wear
ontheelectromechanical components.
Excessive flow can result in vibrations in the immersion
heaters with noise and reduced service life as well as
unnecessary wear on system components.
Flow direction
The circulation pump must press the water through the boiler
with the flow direction shown in the System principles.
Expansion system
EK 15E must be connected to an expansion system.
Expansion vessels are dimensioned to accommodate changes
in water volume due to heating and cooling. Expansion
vessels, safety pipes, aeration and overflow pipes must
beinstalled in a manner that protects against freezing.
If the electric flow heater's safety pipe is not
connected to an open expansion vessel, it must
always be equipped with automatic venting.
Open system
The electric flow heater's flow/ safety line must be
connected in an uninterrupted, uninterruptible pitch to an
expansion tank installed at the highest point of the heating
system. In order to avoid oxygenation of the heating system,
the distance between the top of the highest radiator and
expansion tank may not be less than 2.5 metres. To avoid
damage in the event of any blockage in the expansion
system, the electric flow heater should be fitted with
asafetyvalve.

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Värmebaronen EK 15E
pipe installation
Pipe installation
Closed system
The electric flow heater is connected to a closed expansion
tank in an unbroken, uninterruptible connection to a type-
approved safety valve, DN15, with maximum 3 bar opening
pressure.
The flow/ safety lines must always be equipped with
automatic venting. Otherwise, air can accumulate in the
boiler tank, which may cause damage to the immersion
heaters.
The discharge pipe from a safety valve must meet the
requirements under EN 12828.
Steam or liquid that flows out of the safety valve when it
opens must be drained safely.
The discharge pipe from the safety valve is dimensioned
sothat the blow-off capacity is not impeded.
The discharge pipe must be laid so it cannot freeze, must be
cleaned well and must be laid so that water pockets cannot
form.
The opening pressure of the safety valve is
determined by the component in the system
thattolerates the lowest pressure.
System principles
The gures shown are system principles. The actual
system must be installed according to existing
standards. Any additional equipment must be installed
as indicated by the manufacturer for its product.
Radiator system
By supplementing the EK 15E with an outdoor temperature
sensor, an outdoor temperature compensated supply
temperature is obtained in a shunt-free system.
°C
Underfloor heating system
By supplementing the EK 15E with an outdoor temperature
sensor, an outdoor temperature compensated supply
temperature is obtained in a shunt-free system.
°C
With boiler
As a complement to an existing boiler, the EK 15E can
beinstalled either between hot water outlets if applicable,
onthe electric flow heater, or between the electric flow
heater's expansion pipe and drain valve.

14
Värmebaronen EK 15E
1
52
1234
GND
0-10V
0-10V signal of connected output
The connected output of the
electric flow heater can be
obtained as a 0-10Vdc signal,
which corresponds to 0-100%
of the installed output.
Outdoor temperature sensor and alternative
heating,option
See "User level" rows 7, 8 and 9 and "Advanced
servicelevel" rows 6, 7 and 15.
The outdoor temperature sensor is
fitted toan outside wall, at half
the height of the façade, close
toacorner,facingnorth/ north
west. Thesensor must not
be placed where it will be
exposed to the morning sun or
close to valves, windows or doors.
The sensor is connected in clamps 1-2, with at least 0.4 mm2
cable up to 30 meters.
The temperature can be changed with an external potential-
free contact function; alternative temperature.
Connection to clamps 3-4.
4
1
52
34 3
8
Optional Room Unit
Further information is provided with the room unit.
23
414
Current Transformers- Load Guard
See "Service level" rows 3 and 4!
The current transformers need not
beconnected if the function is not to be
used.The guard is not phase-sensitive.
The current transformers are placed
on the wires from the fuses, which
must be protected. Connection
must be made with a high-
voltage insulated cable, with a
minimum area of 0.75 mm2. A joint
conductor is connected in terminal 4.
10
Electrical installation
Electrical installation shall be carried out in accordance
with the applicable regulations, by an authorized
electrical installer or by someone who is covered
bythecompany's self-inspection programme!
The electric ow heater and heating system must
belled with water and vented before the ow heater
isconnected to the power supply.
Low-voltage cables may not be laid parallel to high-
voltage cables.
Cables and pipes must be laid so that it is possible
toremove the front plate and open the top plate.
Do not drill into the electric ow heater's cover
plates. Cuttings can damage the electric ow
heater'selectricalequipment!
Connection power supply 400V 3N~
Cable area 5 x 6 mm2 Cu, fuse 25 A
L1 L2 L3 N NNCP X
X01
3 x 25 A
N
L1 L2 L3
2
1
Circulation pump 230V~
See "Advanced Service level" row 23.
Control for circulation pump, max load 2A.
L1 L2 L3 N NNCP X
X01
1
3
Output limitation/ Output control, 0-10V
See "Advanced service level" row 13 and "Service
level"l row 5!
Controlled by an external
voltage signal, 0-10Vdc.
Thecontrol signal controls
the output stages
0-100% of installed output.
Installed output is the number of
stages the electric flow heater is allowed to use.
The existing jumpers 3-4 are removed.
The control signal is connected to terminals 4-5.
GND
SIGNAL
1
52
1234
7
1
52
1234
7
Blockage
A potential-free contact is
connected to clamps 3-4.
The existing jumper 3-4
isremoved.

15
Värmebaronen EK 15E
electrical installation
1. Terminal block.
2. Connection 400V3N~.
3. Circulation pump connection, 230V~.
4. Circuit board, power.
5. Overlay and panel circuit board.
6. Boiler temperature sensor.
7. Connection for Blocking or voltage control.
8. Connection, outdoor temperature sensor and alternative
temperature, option.
9. Room unit connection, option.
10. Connection, current transformers for load guard.
11. Capacitor.
12. All-pole switch.
13. Miniature circuit breaker.
14. Overheating protection.
15. Contactor, power group three.
16. Heating element output group three, 8.4kW.
17. Heating element for output group two, 4.2kW.
18. Heating element for output group one, 2.1kW.
Wiring diagram
VIT
BRUN
SVART
VIT
BRUN
SVART
VIT
BRUN
SVART
8.4kW4.2kW2.1kW
PANNTYP 4
N
N
10A
F1
L1 L2 L3 N NNCP X
X2
X01
13 5
246
1 2 3 4 5 1 2 3 4 1 2 3 4 1 2 3 4
11
12
21
22
31
32
24
RE1 RE2 RE3 RE4 RE5
RE1
RE2
RE3
RE4
K1
K1
RE7
10
1
23
4
5
6
89
12
13
15
16
17
7
11
14
18
Before work is performed, the electric
ow heater must be de-energised!
2.1 kW
2.1 kW
2.1 kW
8.4 kW
8.4 kW
4.2 kW
4.2 kW 4.2 kW
8.4 kW
Electrical connections
on immersion heaters

16
Värmebaronen EK 15E
Troubleshooting- Warning, limitation and alarms
Limit
Connection delay Delayed output connection after restart after power failure.
Upon restart after power loss, up to 6kW is connected immediately if necessary.
In service mode, the delay can be accelerated, see "Service level" row 2.
The delay can be permanently removed, see "Advanced Service level", row 14.
The load guard limits Green indicator flashes. The load guard limits.
See "Service level" rows 3 and 4.
External restriction/
blocking
Green indicator flashes. External limit.
Blocking or restriction via external 0-10V signal, see "User level" row 3.
Manual operation Manual connection of output stages and circulation pump, see "Advanced Service level"
rows 18-20.
ECO mode Green indicator flashes. ECO function is active, see "User level" row 12.
Warning- yellow indicator flashing
The display shows current warnings if no stop alarms occur. The information remains until OK is pressed and the cause
hasbeen resolved.
High temperature
around power
circuitboard
Temperature > 45°C.
Yellow indicator goes off at temperature below 42°C, the warning is acknowledged
withOK.
All connected output steps out at temperatures > 55°C, output can be stepped back
inattemperatures < 45°C, see "Advanced service level" row 24.
High boiler temperature Over Temperature.
Yellow indicator goes off when temperature has fallen below the limit and the warning
isacknowledged with OK. All connected output steps out and steps in again only when
the temperature has dropped below the limit. Selectable in "Advanced Service level"
rows16 and 7.
Low boiler temperature Boiler temperature lower than 7°C.
The electric flow heater's temperature must be no lower than 7°C during operation,
regardless of the selected setpoint.
If external blocking/ external control is active, the electric flow heater is NOT allowed
tostep in output.
If the load guard restricts, the electric flow heater is NOT allowed to step in output.
Outdoor sensor Incorrect value, interruption, disconnected sensor or short-circuit.
Control assumes 0°C outdoor temperature.
Room device Incorrect value, interruption/ short circuit of the sensor and/ or disconnected room unit.
The unit is disconnected from the control until the alarm is acknowledged and the room
unit is repaired.
Room unit, adjustment Incorrect value, interruption/ short circuit or disconnection of the room unit. The unit
is disconnected from the control until the alarm is acknowledged and the room unit
isrepaired.
Alarm- red indicator flashes: the electric flow heater is blocked
Display window shows current alarms. The information remains until the cause is corrected and OK is pressed
Boiler temperature
sensor
Incorrect value or interruption/ short circuit on sensor.
Temperature sensor
oncircuit board
Incorrect value or interruption/ short circuit on sensor.
Low boiler temperature Boiler blocked due to a boiler temperature lower than 3°C.
Overheating protection
triggered
All output disconnected, the circulation pump is still in operation.
Low supply voltage Low supply voltage to electronic components, all output disconnected, the circulation
pump is switched off.

troubleshooting
17
Värmebaronen EK 15E
Troubleshooting
Intervention that requires tools must be performed by a qualied electrician!
Fault Possible cause of fault Action
Indicators and
display off.
The electric ow heater
has no power.
Check the main fuses.
Switch off. Set switch to position. Connection delay can restrict output staging.
Control fuse triggered. Check where the short circuit is, take remedial action and then reset the fuse.
Malfunction of the control
electronics.
Change the circuit board.
Group fuse is
triggered.
Immersion heater faulty. Check the insulation of the immersion heaters, which are accessible when
theelectric flow heater's lower front plate and insulation are removed.
Change the defective container with immersion heater. Check that the power
cables are not against the electrical connections.
The electric
flow heater
does not step
up power even
though the
temperature
in the electric
flow heater is
lower than the
set value.
The boiler electric flow
heater has been restricted.
Check the "Number of output stages" adjustment.
The electric flow heater
is controlled by external
signal.
Check the voltage of the signal.
Outside temperature
compensator connected.
Check the settings for the UTK function.
Temperature sensor
defective.
Take control measurements of the temperature sensor.
The sensor must not be connected to the circuit board during resistance
measurement.
When the boiler is energized, voltage is measured in the sensor's connection
points at the PCB.
Boiler
temperature
°C kΩ V°C kΩ V°C kΩ V
5141.9 4.7 40 30 3.7 75 8.2 2.3
10 111.6 4.6 45 24.6 3.6 80 6.9 2
15 88.3 4.5 50 20.2 3.3 85 5.8 1.8
20 70.3 4.4 55 16.7 3.1 90 51.7
25 56.3 4.2 60 13.9 2.9 95 4.2 1.5
30 45.4 4.1 65 11.6 2.7 100 3.7 1.3
35 36.8 3.9 70 9.7 2.5
Outdoor
temperature
°C kΩ V°C kΩ V
-40 88.7 4.5 08.8 2.3
-35 64.2 4.3 56.8 2.0
-30 47.0 4.1 10 5.4 1.7
-25 34.7 3.9 15 4.2 1.5
-20 25.9 3.6 20 3.4 1.3
-15 19.5 3.3 25 2.7 1.1
-10 14.8 3.0 30 2.2 0.9
-5 11.4 2.7
Uneven
regulation,
theelectric
flow heater
steps up a
few stages
and is then
immediately
stepped down,
etc.
Water flow through the electric flow heater is too low.
Check that circulation pumps and valves are working.
This is an easy way to get an idea of the level of flow through the electric flow heater:
1. Limit the output stages of the electric flow heater so that the output is constant, e.g.,
tofouroutputstages.
2. Allow the electric flow heater's temperature to stabilise.
3. Measure the temperature increase between the return and flow lines of the electric flow heater.
4. Calculate the flow through the electric flow heater using the formula below.
5. Check against the flow details whether the flow is adequate.
q= P/ (∆t x 1.16) Q= water flow in m3/ h. (m3/ h x 1000/ 3600= litre/ second)
P= electric flow heater's delivered output inkW
∆ t= temperature differencebetween theelectric flow heater's return
andflowlines in °C.
1.16= water's thermal absorption coefficient.

18
Värmebaronen EK 15E
Technical data
Type EK 15 E
Article number 1212
RSK number 621 10 11
Power output 14.7 kW
Voltage 400V 3N~
Voltage tolerance ≤ ±10 %
Frequency 50 Hz
Current 21.2 A
Highest fuse 25 A
Number of power stages 7
Output/ stage, stage size 2.1 kW
Current/ stage 3 A
Ingress protection rating IP x1
Flow requirements
recommended, ∆t=10°C
min/ max ∆t= 25/ 5°C
0.35
0.2-0.7
litres/ sec
litres/ sec
Pressure
drop
Volume 3.6 litres
Design pressure
Test pressure
3
4.3
bar
bar
Design temperature
Operating temperature
110
20-95
°C
°C
Ambient temperature ≤ 30 °C
Connection, flow/ return R 25 ext.
Weight empty
Weight filled with water
13
16.6
kg
kg
Manufactured to PED 2014/ 68/ EU article 4.3

general
19
Värmebaronen EK 15E
Alternative
bracket
location
1
4
12
15
21
279
65
56021
92
340
110
179
54 175
20
19
22
23
22
Technical data
12
14
13
pos. item no. designation qty.
4. 21054 Circuit board, power, boiler type 4 1
5. 210221 Circuit board, panel 1
700414 Overlay 1
6. 210206 Temperature sensor 1
11. 440090 Capacitor 1
12. 130010 Switch 1
120009 Knob for switch 1
700223 Shaft for switch 1
13. 180023 Miniature circuit breaker 1
14. 120025 Overheating protection 1
370092 Reset plug 1
15. 170046 Contactor 1
360020 Current transformer 3
90047 Container with immersion heater 1
19. Flow/ safety line, R25 ext.
20. Return R25 ext.
21. Cable openings
22. Wall bracket
23. Cover over coupling opening

Värmebaronen AB
Arkelstorpsvägen 88
SE-291 94 Kristianstad
Tel. + 46 44 22 63 20
www.varmebaronen.se
www.varmebaronen.com
[email protected]