AR2-28
107x95x47 mm Din raiL
verSatile Split DeFroSt controller with rtc
Up to 6 real time defrosts Synchronized defrost start and termination with master-
slave connection Selectable NTC10K or PTC input FLEXICOLD function for energy
saving or alternative setpoint Optional control of a second compressor or evaporator
Excellent evaporator fan control Absolute or relative temperature alarms, door open
alarm, condenser high temperature/pressure alarm Light and standby control (On/Off)
Quick programming through ZOT-AR2 Connection to LAE supervisory systems Available
display unit: LCD-5S or RU33
Cold stores, control panels, upright refrigerators, plug-in and supermarket display cases, and all those
plants where real time defrost starts are needed.
applicationS
Range: -50…120°C, -55…240°F
Resolution: 0.1 / 1 °C; °F
Precision: NTC10K: <±0.3°C (-40.0÷70.0°C)
PTC1000: <±0.5°C (-50÷120°C)
Sensor type: selectable NTC10K or PTC1000
Rechargeable battery: >150 hours
Power supply: 230V~ ±10% 50÷60Hz 3W
technical Data
All models come with an alarm buzzer. Versions with power supply 12Vac are also available.
AR2-28 series
B1S3E-B C2Q4E-B C3R5U-A
Thermostat
Evaporator
Functions
Temperature inputs
Auxiliary
Outputs
Power supply
230Vac
TTL
Auxiliary 1
Serial port
RS485
Door switch input
DI2 aux.
digital input
Connections
Voltage free contact
Voltage free contact
12÷24Vac voltage
Defrost synchronisation
Evaporator fans
Thermostat
Defrost
Auxiliary 2
115Vac
Quick with M/F connectors
Screw terminals
Display unit
LCD-5S
RU33
Dimensions: 169x38x25 mm (WxHxD) Panel cut-out: 163x31.5 mm
Front protection: IP55
technical Data: ru33 DiSplay unit
To Next Page
