LAE BIT25 Series - AR2-5 Defrost Controller with RTC

AR2-5
77x35x90 mm
DeFroSt controller with rtc For DiSplay
caSeS anD colD StoreS
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 Direct compressor control through high power 12(5)A relay
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
Plug-in cabinets, supermarket display cases, cold stores, control panels, upright fridges and freezers,
refrigerated tables and all those plants where real time defrost starts are needed.
applicationS:
Control Range: -50÷120°C , -55÷240°F
Resolution: 0.1 / 1 °C; °F
Accuracy: NTC10K: <±0.3°C (-40.0÷70.0°C)
PTC1000: <±0.5°C (-50÷120°C)
Sensor type: selectable NTC10K or PTC1000
Power supply: 115÷230V~ ±10% 50÷60Hz 3W
Rechargeable battery: >150 hours
Front protection: IP55
Panel cut-out: 71x29 mm
technical Data
AR2-5 Series
B14D-AL B23W-AG C34W-BG
Thermostat
Evaporator
Functions
Temperature
Inputs
Auxiliary
Outputs
Power supply
12Vac/dc
Serial port TTL
Auxiliary
Serial port
Keypad
Generic
Serial port RS485
With light button
Door switch input
Digital inputs
Voltage free contact
Voltage free contact
12÷24Vac voltage
Evaporator fans
Thermostat
Defrost
115-230Vac
Defrost synchronisation
All models come with an alarm buzzer; All models are tted with detachable screw terminals.
On request, the AR2-5 is also available with gasket for a better protection between bezel and metal panel.
Wiring diagrams
Applications
Instruction