EUROSTER 11WB User manual

EUROSTER 11WB USER MANUAL 1
EUROSTER 11WB
CENTRAL HEATING SYSTEM CONTROLLER
MANUFACTURER: P.H.P.U. AS, Polanka 8a/ , 61-1 1 Poznań, POLAND
1 INTRODUCTION
Carefully study this user manual to learn how to correctly operate the EUROSTER 11WB central
heating system controller.
2 FIELD OF APPLICATION
EUROSTER 11WB is a modern microprocessor based controller used to control central
heating (CH) systems with coal/culm fired blow boilers and utility hot water (UWH) tank.
The controller measures the boiler water temperature and depending on its relation to the
preset temperature respectively adjusts flow of the air supplied to the boiler furnace and turns
ON/OFF the CH system circulation pump and the UHW system pump.
The EUROSTER 11WB controller features the ANTY STOP
function that prevents idle pump rotors against seizing. Once
the heating season is over, every 14 days the function
automatically turns ON the pumps for 30 seconds. To that end
the controller must be left powered up.
VISIBLE CONTROLLER ELEMENTS
1. 230 VAC~ mains input
2. 230 VAC~ power supply to CH pump
3. 230 VAC~ power supply to UHW pump
4. 230 VAC~ power supply to fan
5. Input for UHW temperature sensor cable
6. Input for CH water temperature sensor cable
7. Mains switch
8. LCD display
9. Knob
4 INSTALLATION
Hazardous voltages may be present inside the controller and on its cables.
Therefore it is expressly forbidden to install the device prior to disconnecting
its mains power supply. Only qualified technicians may install the controller.
Do not install any devices showing signs of any mechanical damage.

EUROSTER 11WB USER MANUAL 2
The procedure:
a) Mount the controller:
using a pair of supplied nylon nail it fasteners (anchors) mount the controller box on a
wall (or any other suitable supporting structure)
using fasteners fix controller cables to the wall.
b) Install temperature sensors:
do not immerse sensors in liquids nor install them within stream of flue gases
install boiler temperature sensor at the boiler point specially designed for that purpose
or else on an unshielded boiler outlet pipe (as close to the boiler as possible)
install UHW tank temperature sensor at the tank point specially designed for that
purpose
using hose clips tighten the sensors to their pipes and cover them with thermal
insulation.
c) Hook up pump power supply cables:
connect yellow (or yellow green) PE wire with the terminal
connect blue wire with the N terminal
connect brown wire with the L terminal.
d) Hook up fan power supply cable:
connect yellow (or yellow green) PE wire with the terminal
connect blue wire with the N terminal
connect brown wire with the L terminal.
e) Verify the connections:
check up all cable connections and tighten terminal box lids.
f) Hook up the controller:
make sure controller cables are protected against incidental cut off
plug the controller power supply cable into a 230V/50Hz mains socket equipped with a
grounding pin.
The controller must not be installed in a place where the ambient
temperature may exceed 40ºC.
5 CONTROLLER DISPLAY
Elements of the controller display:
1. Name of the controlled parameter (displayed while set point values are browsed/set)
2. Boiler temperature sensor icon
3. Manual operation mode (icon lit while the temperature is manually controlled)
4. Alarm (icon blinks in case of an alarm)

EUROSTER 11WB USER MANUAL 3
5. State of the heat source (boiler) furnace – animated icon, see description below
6. Fan icon lit while the fan is running
7. UHW pump icon lit while the pump is running
8. CH system pump icon lit while the pump is running
9. UHW tank temperature / menu option number (displayed while set point values are
browsed/set)
10. Boiler temperature / other displayed parameter value
11. UHW tank temperature sensor icon
12. Symbol of the “UWH priority” mode of operation
Animated icon that visually presents state of the boiler furnace.
•Firing up – the boiler has not yet reached its preset temperature:
> > >
•Normal operation – boiler temperature within hysteresis corridor around the preset:
< >
•Blowdown – boiler temperature has exceeded the preset by more than half of the
hysteresis:
< >
•Overheating – boiler temperature >90ºC:
< >
•Furnace put out – the preset has not been attained in spite of 1 hour of firing the boiler
up or boiler furnace temperature has dropped below the put out temperature (set point
Błąd: Nie znaleziono źródła odwołania):
6 TURNING THE CONTROLLER ON
Turn the controller mains switch (7 in section 3) into the “I” position.
Device firmware version No. and compilation date are sequentially displayed for 2 s.
“AS” letters are blinking on the display while the ANTY STOP function turns on the
pump.
State of the system is shown on the display.
If the controller is being turned on for the first time: set the desired controller presets
(see section 8 below).

EUROSTER 11WB USER MANUAL 4
7 FACTORY (DEFAULT) PRESETS
Proceed as follows to restore factory presets:
Press the knob and while holding it depressed turn the controller off and on.
”Fd” (factory defaults) is displayed.
Release the knob. Digit 0 is displayed.
Select digit 1 and accept the selection.
Check and correct the presets if needed.
8 CONTROLLER PRESETS
Shortly after power supply of the controller is turned on, current state of the system is shown
on the display. Turn the knob to the right to enter the preset browse/edit mode. General
procedure to edit a preset:
1. Turn the knob to select the desired preset (parameter). The controller displays current
value of the selected parameter (top) and its number (bottom).
2. Press the knob. The displayed parameter value starts to blink.
3. Set the desired new value and press the knob to accept it
or
Wait 10 seconds until the displayed parameter value stops blinking in order to abort the
edit procedure (to leave the current value intact)
Configuration windows are numbered to facilitate manipulations. User may edit the following
controller parameters (presets):
1. Boiler preset temperature
The controller will attempt to maintain this temperature manipulating boiler fan and CH
pump.
2. Fan hysteresis
Temperature range, in which controller linearly adjusts fan power. The narrower the
preset hysteresis, the smaller fluctuations of the CH system temperature will be.
However, a too narrow preset will make the temperature to oscillate – the controller will
alternately heat up and cool down the boiler.
Initially set the maximum allowable hysteresis, wait until the preset temperature is
reached and check if (in such conditions) the fan operates at a power level between set
points Błąd: Nie znaleziono źródła odwołania and Błąd: Nie znaleziono źródła odwołania.
If so, the hysteresis may be narrowed down.
. Minimum fan power
The lowest power at which the fan may operate. Should be selected experimentally as
the power, at which the fan rotor starts to rotate (see fan test function, set point 11).
4. Maximum fan power
The highest power at which the fan should operate. Should be selected experimentally
as the power, at which the actual boiler temperature (maintained by the controller) was
as close to the preset temperature as possible.
5. Blowdown time
The fan is turned ON for that period if the controller needs to blow down the furnace (to
remove combustion gases out of the boiler). Blowdown time should be long enough to
effectively exhaust the gases via the chimney, but on the other hand short enough to
prevent boiler temperature rise.
6. Gap between successive blowdowns
Time after the last blowdown cycle before a new cycle may be started. It should be long
enough to prevent boiler temperature rise, but on the other hand short enough to avoid
explosive combustion of the boiler gases.
7. UHW temperature

EUROSTER 11WB USER MANUAL 5
Mean tank temperature that the controller will attempt to maintain manipulating the
pump.
ATTENTION: Too low tank temperatures ( 5-40ºC) help to grow various
bacteria within the tank, including the Legionella bacteria.
8. UHW pump hysteresis
Difference between the temperature at which the controller turns the pump on and the
temperature at which the controller turns it off (provided boiler is hot enough, see set
point 9 below). See section 12 below for details.
9. Boiler-tank temperature surplus
The preset tells how much the boiler temperature should exceed the tank temperature
(plus a constant value 3ºC) to enable UHW pump engaging without a risk that the tank
will chill out. Alternatively the preset tells how close tank/boiler temperatures (minus a
constant value 3ºC) will interrupt operation of the UHW pump.
10. UHW priority
Cold UHW tank may heat up faster if this mode of operation is activated: the CH system
pump is unconditionally turned OFF, boiler temperature preset is temporarily increased.
As soon as the tank temperature reaches the preset, the controller automatically
restores the normal operation mode. However, even if this mode of operation is NOT
activated, the UHW pump is turned ON provided that the tank temperature is low and
the boiler is sufficiently hot.
11. CH pump TURN ON temperature
See section 12 for detailed description of conditions in which CH pump is turned
ON/OFF.
12. CH pump hysteresis
Difference between the temperature at which the controller turns the pump on and the
temperature at which the controller turns it off. See section 12 below for details.
1 . Boiler temperature sensor correction
A constant added to all values measured by boiler temperature (external) sensor to
compensate for differences in respect to water temperature inside the boiler.
14. UWH tank temperature sensor correction
A constant added to all values measured by tank temperature (external) sensor to
compensate for differences in respect to water temperature inside the tank.
15. Put out temperature
As soon as actual boiler temperature has dropped below that preset, the controller
turns the boiler OFF (the boiler furnace is most probably put out). A too high put out
temperature preset may cause the controller to turn the boiler OFF mistakenly.
16. Fan manual operation (test)
Display current fan status commanded by the controller (0…100%). Press the knob and
modify the parameter value to manually control the fan. Press the knob once more or
leave it inactive for 10 seconds to resume automatic mode of control.
17. UHW pump manual operation (test)
Display current pump status commanded by the controller (0/1 = pump
disengaged/engaged). Press the knob and modify the parameter value to manually
control the pump. Press the knob once more or leave it inactive for 10 seconds to
resume automatic mode of control.
18. CH pump manual operation (test)
Display current pump status commanded by the controller (0/1 = pump
disengaged/engaged). Press the knob and modify the parameter value to manually
control the pump. Press the knob once more or leave it inactive for 10 seconds to
resume automatic mode of control.

EUROSTER 11WB USER MANUAL 6
ATTENTION: Should a (colliding) value making impossible correct operation of the
controller be preset, then the alarm icon will appear on the display, the colliding
presets will be displayed alternatively, and (after a few seconds) the last correct
combination of presets will be automatically restored.
All controller presets are listed below:
Parameter Preset value Unit
No. Name default min max
1 Boiler preset temperature 50 40 80 °C
2 Fan hystersis 6 2 10 °C
3 Minimum fan power 45 30 100 %
4 Maximum fan power 100 30 100 %
5 Blowdown time 10 0 120 s
6 Gap between successive blowdowns 6 0 30 min
7 UHW temperature 60 20 70 °C
8 UHW pump hysteresis 4 2 10 °C
9 Boiler tank temperature surplus 10 3 10 °C
10 UHW priority 1 1) 0 1) 1 1) –
11 CH pump TURN ON temperature 40 20 80 °C
12 CH pump hysteresis 4 2 10 °C
13 Boiler temperature sensor correction 0 –5 5 °C
14 UWH tank temperature sensor
correction 0 –5 5 °C
15 Put out temperature 35 30 50 °C
16 Fan manual operation (test) – 0 100 %
17 UHW pump manual operation (test) – 2) 0 1) 1 1)
18 CH pump manual operation (test) – 2) 0 1) 1 1)
1) ) 0=OFF, 1=ON
2) The controller displays values calculated by its algorithm.
9 FIRING UP
During the boiler firing up phase both pumps are disengaged and the fan is operated at its
highest power level in order to speed the process up as far as possible.
The firing up procedure may be initiated exclusively while the controller is in the put-
out mode – fan is not operating, no flame icon is visible on the display.
To initiate the procedure:
turn the controller knob all the way to the left, then press it and hold down until the fan
is started, or
turn the controller power OFF then ON.
The procedure is terminated when:
the boiler temperature is closer to the preset (Błąd: Nie znaleziono źródła odwołania)
than half of the hysteresis (Błąd: Nie znaleziono źródła odwołania), or
within 1 hour the boiler has not reached the preset put out temperature (Błąd: Nie
znaleziono źródła odwołania).
If for any reason (e.g. self firing up) the temperature of a put out boiler exceeds the preset
put out temperature (Błąd: Nie znaleziono źródła odwołania5), the controller will automatically
resume normal operation i.e. pumps will not be turned OFF.
10 FUELING
The fan should be turned OFF for the time the boiler furnace is loaded with new fuel. To this
end turn the controller knob all the way to the left while the controller is in its normal
operation mode (flame icon visible on the display), then press the knob and hold it down until
the flame icon disappears. Fan icon starts to blink alternately with a hand icon – it means that
the fan was manually disengaged (all other algorithms are operating normally).
Proceed as above to turn the fan ON. Once the fan is back ON, the controller initiates the firing

EUROSTER 11WB USER MANUAL 7
up cycle – it turns the pump OFF in order to fire the new batch of fuel up as soon as possible.
Should the flame to extinct, the controller will automatically turn the fan OFF.
ATTENTION: The controller will not automatically turn the fan OFF if it was earlier
manually turned OFF by the user and not turned back ON.
11 FAN OPERATION
The controller attempts to maintain boiler temperature adjusting amount of air blown to the
furnace by the fan and turning the CH pump ON/OFF.
Cold boiler may sweat during the firing up period. Therefore the fan is operating at the highest
power level (preset Błąd: Nie znaleziono źródła odwołania) and the pump is OFF to shorten
that period as far as possible.
As soon as the boiler temperature has approached the preset (and is within the hysteresis
corridor), the controller starts to smoothly control air flow adjusting the fan power level. Fan
power range is limited by the minimum fan power (Błąd: Nie znaleziono źródła odwołania) and
the maximum fan power (Błąd: Nie znaleziono źródła odwołania) presets.
Should the boiler temperature to exceed the upper threshold, the controller will start the boiler
blowdown cycling. In that mode the fan is used only to remove combustion gases out of the
furnace. Blowdown cycle parameters should be set so that boiler temperature will drop down
to the level at which the controller will be able to resume linear control of the fan power.
Should the boiler temperature to exceed the alarm temperature, the fan will be turned OFF for
good. Overheating is signaled by pulsing of the controller display.
Should the boiler temperature to drop down below the put out preset (Błąd: Nie znaleziono
źródła odwołania), the fan will be turned OFF. The pumps will be operated normally.
12 PUMP OPERATION
CH pump is engaged as soon as boiler temperature Tboiler exceeds boiler preset temperature
Tpreset by more than half of hysteresis Hpump:
Tboiler > Tpreset +Hpump/2
The pump is disengaged as soon as the temperature drops down below the preset by more
than half of the hysteresis:
Tboiler < Tpreset – Hpump/2
Decision to turn UHW pump is made in two stages:
•The pump is turned ON if the tank temperature Ttank has dropped below the preset by
more than half of the pump hysteresis Hpump:
Ttank < Tpreset Hpump/2
If the UWH priority mode of operation is activated, the CH pump is then unconditionally
turned OFF. The pump is disengaged as soon as the tank temperature has exceeded the
threshold by more than half of the hysteresis:
Ttank > Tpreset + Hpump/2
•The pump may be disengaged without a risk of chilling out the tank provided that the
difference between the boiler temperature and the tank temperature is at least by 3 ºC
higher than the preset boiler tank temperature surplus Tboiler – Ttank > Tsurplus+3ºC. The
pump should run (to prevent chilling out the tank) until the difference decreases to the
surplus minus 3ºC, Tboiler – Ttank < Tsurplus 3ºC.
1 SUMMER SEASON OPERATION
Set CH system pump TURN ON temperature (11) higher then the UHW pump preset and the
fan preset (e.g. to 80°C) in order to disable CH system during the summer season. UHW tank
will heat up quickly and the boiler will be protected against excessive temperatures.
14 THE ANTY-STOP FUNCTION
The ANTY STOP function turns on the pump immediately after the controller is turned on, then
every 14 days. “AS” letters are blinking on the controller display while the function is active.

EUROSTER 11WB USER MANUAL 8
Any alarm generated while the ANTY STOP function is active (overheating or temperature
sensor failure) aborts the function execution.
15 TROUBLESHOOTING
a) Device is dead
Burnt mains fuse or ROM failure. Replace the fuse or have the controller serviced.
b) Sensor icon on the display blinks, “Sh” or “OP” letters next to the icon
Sensor circuit shorted (Sh) or opened (OP). Check/replace the sensor cable or ship the
controller (together with the sensor) to service.
c) Pump or fan does not operate
Turn on the controller and make sure that pump/fan icons are displayed. If so, check
pump/fan connections. Otherwise check presets or restore factory ones (see section 7)
d) Fan is operating continually
Blowdown gap (6) set to 0 – correct the preset.
e) Boiler is overheating
Blowdown time (5) too long or blowdown gap (6) too short – correct the preset.
A too large fan power level (3, 4) – correct the presets. Throttle down the fan.
f) Controller emits a buzzling sound
Loose coils in interference filter. The symptom does not impact correct operation in any way.
g) Controller knob operates erratically
Pulse generator failure. Have the controller serviced.
16 COMPATIBILITY WITH STANDARDS/CERTIFICATES
The EUROSTER 11WB controller meets all requirements of the EMC and the LVD EU
Directives. The CE Conformity Declaration is available on the http://www.euroster.com.pl
Internet webpage.
17 SPECIFICATIONS
a) Mains 230 V 50Hz
b) Current consumption max. 7 mA (1.6 W)
c) Fan output rated load 0.5 A (fan power < 100 VA)
d) Both pump outputs rated total load 2 A
e) Length of cables:
Controller power supply 1.5 m
CH pump power supply 1.5 m
UHW pump power supply 1.5 m
Fan power supply 1.5 m
UHW tank temperature sensor 5 m
CH boiler temperature sensor 1,5 m
f) Dimensions (width x height x depth) 150 x 90 x 54 mm
We recommend to use a fan equipped with a reactive power compensation circuit,
e.g. type WBS manufactured by Konwektor.
18 KIT CONTENTS
a) controller box with 2 temperature sensors
b) sensor hose clips
c) box fasteners/anchors
d) this Installation & Operation Manual
e) template to drill holes for fasteners/anchors
19 CONNECTION DIAGRAM
Diagram presented below is simplified (not every element necessary to correctly operate the
system is shown).
Central heating pump control mode

EUROSTER 11WB USER MANUAL 9
1. EUROSTER 11WB controller
2. UHW tank temperature sensor
3. UHW tank
4. UHW pump
5. CH boiler
6. Fan
7. Temperature sensor
8. CH pump
9. Radiator (heat load)
20 ELECTRONIC WASTE MANAGEMENT INFORMATION
We made every effort to get as a long controller lifetime as possible.
However, the device is subject to natural tear and wear. We ask you to have
a controller that will not meet your requirements any more brought in to an
electronic waste management facility. Electronic waste is collected free of
charge by local distributors of electronic equipment.
Inappropriate management of electronic waste may lead to an unnecessary
environment pollution.
Cardboard boxes should be disposed of at a paper recycling facility.

EUROSTER 11WB USER MANUAL 10
EUROSTER 11WB CONTROLLER WARRANTY CERTIFICATE
Warranty terms:
1. Warranty is valid for 24 months from the controller sale date.
2. Warranty is valid exclusively on the territory of Poland.
3. Claimed controller together with this warranty certificate must be supplied to the
seller or directly mailed via Poczta Polska mail operator to the manufacturer.
4. Warranty claims shall be processed within 14 business days from the date the
manufacturer has received the claimed device.
5. Controller may be repaired exclusively by the manufacturer or by other party clearly
authorized by the manufacturer.
6. Warranty becomes invalidated in case of any mechanical damage, incorrect
operation and/or making any repairs by unauthorized persons.
7. This consumer warranty does not exclude, restrict nor suspend any right of the
Buyer ensuing if the product would not meet any of the sale contract terms.
........................................................................................................................
sale date serial number/date of manufacture signature/stamp
Service phone [phone]
Business entity that issued this warranty certificate:
P.H.P.U. AS Agnieszka Szymańska Kaczyńska, Chumiętki 4, 63 840 Krobia, Poland