ECO 20 Automatic Regulation of Burning
10
•
Factory reset
-
Resets the control unit to factory default settings.
•
Relay 1 settings / Relay 2 settings
-
Select the function to use when controlling external devices by relay
-
The relay contacts are voltage-free. To control a 230 V device you will need an
External 230 V Control Unit. For recommendations for the electric wiring of
external 230 V devices to the control unit, see “ECO –
Wiring 230 V Devices”.
-
Never connect 230 V power directly to the relay!
-
Relays can be assigned the following functions:
o
Off
▪
relay is inactive, does not show up on Main Screen
o
Hood
▪
relay contacts open for 5 minutes after START command is received
o
Energy recovery ventilator
▪
relay contacts closed for 5 minutes after START command is received
o
Burning time
▪
relay contacts are closed for entire duration of active burn control,
incl. hot coals phase
o
Pump
▪
relay contacts close when thermal sensor 2 (T2) reaches preset
temperature (default is 58 Celsius); contacts open when T2
temperature readout drops 3 Celsius below the preset value
▪
integrated overheating protection: if water temperature in heat
exchanger reaches 90 Celsius, the control unit closes shutter to 25%
open to reduce exhaust temperature; overheat protection disengages
(shutter returns to normal control) when temperature drops to 85
Celsius
o
Refuel signal
▪
relay contacts close for 1 minute when a refueling request is fired
o
Exhaust fan
▪
relay contacts close upon receipt of START command and open once
thermal sensor 1 (T1, monitoring exhaust temperature) reaches 180
Celsius
o
Heating by T1
▪
universal function: relay contacts close when temperature preset on
T1 (exhaust temperature) is reached; relay contacts open when T1
temperature exceeds preset value by 10 Celsius
o
Heating by T2
▪
universal function: relay contacts close when temperature preset on
T2 is reached; relay contacts open when T2 temperature exceeds
preset value by 5 Celsius
o
Cooling by T1
▪
universal function: relay contacts close when temperature preset on
T1 (exhaust temperature) is reached; relay contacts open when T1
temperature drops 10 Celsius below preset value
