EUROSTER 11K CONTROLLER USER MANUAL
7
k) Relay activation delay
To increase lifetime of the controller output relays, outputs are prevented against activating/
deactivating more frequently than once per second. However, lights signaling state of the
relays go on/off without any delay.
l) Output tests
The
t1, t2, t3, tP, Ta
installer parameters may be used to manually turn on/off the
P1, P2,
P3
pumps, throttle, and
AUX
outputs, respectively (to test them).
5. SETUP
a) User parameters
User parameters are system settings (temperature presets) that may be modified by the user.
Use the
button to sequentially display preset temperature thresholds at which P1/P2/P3
pump, throttle, and
AUX
output are activated (press the button to display next preset). Use
the
and
buttons to modify the displayed value. Each modification must be confirmed
with the
button or else the controller cancels it after 10 seconds. Use the
button to
cancel errors.
Only user parameters used in the given system layout are displayed, those not used are
hidden. User parameters include:
P1
Temperature at which the P1 pump is engaged. Range: 20÷85°C. Standard
value: 40°C.
P2
Temperature at which the P2 pump is engaged. Range: 20÷85°C. Standard
value: 40°C. Only for layouts 2 and 3.
P3
Temperature at which the P3 pump is engaged. Range: 20÷85°C. Standard
value: 45°C. Only for layouts 2 and 3.
THROTTLE
Preset fireplace temperature (throttle activation threshold). Range: (20 or
tb
)÷(70 or
OH
–5°C). Standard value: 55°C.
AUX
Temperature at which the
AUX
output is deactivated. Range: 20÷85°C.
Standard value: 35°C.
b) Installer parameters (service mode settings)
ATTENTION Installer parameters must be modified knowledgeably or else the CH
system may start to work incorrectly. Therefore the parameters should be modified
exclusively by a qualified installer/serviceman.
Simultaneously press and hold the
and
buttons to enter the service setup mode. Code
(symbol) of the first installer parameter is displayed. Use the
and
buttons to display
other parameters. Use the
button to display current value of the displayed parameter. Use
the
and
buttons to modify the displayed value. Each modification must be confirmed
with the
button or else the controller will cancel it after 1 minute. Use the
button to
cancel errors.
Installer parameters (system settings that should be modified only by a qualified
installer/serviceman) include:
H1
P1
threshold hysteresis ( i.e. difference between temperature at which the P1
pump is engaged and temperature at which the pump is disengaged). Range:
1÷10°C. Standard value: 5°C.
H2
P2
threshold hysteresis. Range: 1÷10°C. Standard value: 5°C.
H3
P3
threshold hysteresis. Range: 1÷10°C. Standard value: 5°C.
HP
Throttle threshold hysteresis. Range: 1÷10°C. Standard value: 5°C.
HA
AUX
output threshold hysteresis. Range: 1÷10°C. Standard value: 5°C.
tE
Put-out temperature. Range: 30÷(40 or
tb
–10)°C. Standard value: 30°C.
