EUROSTER 11K CONTROLLER USER MANUAL 8
Controller treats the fireplace as shut own an closes its throttle if the fireplace
temperature has roppe own below tE. On the other han the controller
resumes normal operation after the ignition phase as soon as the temperature
has risen above tE. If the put-out temperature is set too high, the fireplace
might be put out by the controller. If the put-out temperature is set too low, the
throttle might be opene unnecessarily.
tb Stan by temperature. Range: 40÷(60 or OH-5)°C. Stan ar value: 45°C.
Controller maintains that temperature while there is no eman for heat. The
parameter shoul be set for a minimum temperature at which fire at the
fireplace can be sustaine .
OH Critical temperature. Range: 60÷(90 or AL-1)°C. Stan ar value: 80°C. As soon
as the fireplace temperature has excee e that threshol , the controller starts
emergency cool own proce ure: throttle is close an all available pumps are
engage .
AL Alarm temperature. Range: 85÷95°C. Stan ar value: 90°C. Shoul the
fireplace temperature excee that threshol , acoustic warning signal is activate .
dF Minimum ifference between temperature of the fireplace an temperature of
the CH tank/buffer at which the tank/buffer is loa e . Range: 1÷20°C. Stan ar
value: 5°C.
On Automatic controller activation. Range: 0÷1. Stan ar value: 1.
On=0: the controller will not activate until the fireplace temperature rises above
the OH threshol .
On=1: the controller will activate as soon as the fireplace temperature excee s
the tE threshol .
OF Automatic shut- own elay. Range: 0÷30 min. Stan ar value: 5 min. The
controller will shut own automatically OF minutes after the time when the
fireplace temperature has roppe own below the tE threshol .
OF=0: the controller will never shut own automatically.
C1 S1 sensor offset. Range: -5÷5°C. Stan ar value: 0°C. That parameter may be
use to correct temperature rea ings.
C2 S2 sensor offset. Range: -5÷5°C. Stan ar value: 0°C.
SC CH system layout. Range: 1÷3. Stan ar value: 1.
SC=1: heat exchanger, 2 pumps (the simplest layout)
SC=2: heat buffer, 2 pumps
SC=3: DWH tank, heat exchanger, 3 pumps.
See etaile escription in the SYSTEM LAYOUT section below.
Pr DHW priority suspen perio . Range: 0÷90 min. Stan ar value: 0 min.
Pr=0: DHW priority isable , CH an DHW pumps operate in epen ently.
Pr=30/60/90: DWH priority function will be suspen e an the CH pump turne
on every 30/60/90 minutes for 10 minutes to prevent room temperature against
ropping own too much while the DHW tank is heate .
t1 P1 output state. Range: 0÷1.
t1 = 0: the output is inactive
t1 = 1: the output is activate
t2 P2 output state. Range: 0÷1
t3 P3 output state. Range: 0÷1
tP THROTTLE output state. Range: 0÷1
tA AUX output state. Range: 0÷1
c) Automatic verification of settings
The controller verifies the entere presets an automatically corrects settings which woul
prevent its correct operation. This is accomplishe two ways:
If the mo ifie setting is a key parameter on which other less important parameters
epen , the entere mo ification automatically forces respective mo ification of all
epen ent parameters. For example, if the alarm temperature is lowere , throttle
activation temperature is also automatically lowere .