ETO2-4550 | microprocessor based thermostat for snow melting system control

Microprocessor thermostat controls two independent zones (roof, entry or stair heating) with temperature and humidity sensors.

General details

ETO2-4550 is a programmed microprocessor controller for ice and snow melting systems. It controls two independent zones according to the data from two separate sensors (one roof sensor ETOR-55, ETF-744/99 and one ground sensor ETOG-55) or two similar sensors (2 roof sensors ETOR-55, ETF-744/99 or 2 ground sensors ETOG-55). Optimal operation is ensured, thanks to output control which makes the system effective and economical. The thermostat is DIN rail – mounted in panel or wall-mounted with a cover box.

Additional functions: control of electric or water-based ice and snow melting systems, efficient control – minimising energy consumptions, alarm relay with external signal, time extension of residual heating and language options.
Remote control: ETO2 thermostat can be controlled from a distance via external signal: system: switch ON/ OFF, or heating period extension switch ON option.
Used for: frost protection on roof gutters and downpipes; frost protection of steps, entrances, driveways, parking lots, ramps, sideways and bridges.

Technical details

Voltage
115/230 V AC 50/60 Hz
Max load
3×16 A / 11 kW
Signal relay
Max. 5 A
Control valve signal
0–10 V DC
Supply voltage (valve)
24 V AC / 100 mA
Temperature range
–20 °C … +10 °C
Sensor type (selected*)
Ground or roof / temperature
Ambient temperature
0 °C … +50 °C
Extension of heating time
0–6 hours
Ambient humidity
10–95 %
Dimensions
90×156×45 mm
Protection class
IP20
Warranty
3 year

Application

Type Temperature range Order No.
ETO 2-4550 –20 °C … +10 °C 19117900
Sensor ETOG-55* –50 °C … +70 °C 19122035
Sensor ETOR-55* –50 °C … +70 °C 19122045
Sensor ETF-744/99* –50 °C … +70 °C 19116054

Downloads

ETO2-4550 INSTRUCTION

ETO2-4550 INSTRUCTION

Download

EC DECLARATION OF CONFORMITY

EC DECLARATION OF CONFORMITY