OI_EC2-XC645CX_A1_A2L_A3_EN_Rev01_866933.docx EC2-XC645CX 6/54
GENERAL DESCRIPTION
The EC2-XC645CX is designed to manage both compressors and fans in a condensing system
such as a pack.
The compressors can be digital scroll, simple, multistage.
It’s possible to manage suction circuit and condenser.
Control is by means of a neutral zone or proportional band and is based on the pressure or
temperature sensed in the LP suction (compressors) and HP (condenser) circuits. A special
algorithm balances the run hours of the compressors to distribute the workload uniformly.
The controllers can convert both suction and discharge pressure and displays them as
temperatures.
The front panel offers complete information on the system’s status by displaying the suction and
condenser pressure (temperatures), the status of the loads, possible alarms, or maintenance
conditions.
Each load has its own alarm input that is able to stop it when activated. To guarantee the total
system’s safety, there are also two inputs for low- and high-pressure switches: when these are
activated, the system is stopped.
By means of the HOT KEY the controller can be easy programmed at power on.
The controller can be connected to the X-WEB, controlling and monitoring system, thanks to the
serial TTL output, using the standard ModBus RTU protocol.
COMPONENTS RELATED TO THE EC2-XC645CX
Name Description Part No.
ECT-323 230 V/24 VAC 804424
CWC30-Kit (3.0 m) 807724
Female disconnect able connector for digital
input or analog output (4 pcs)
CABCJ30 (3.0 m) 807723
TTL / RS485 serial converter
4-20 mA suction pressure transducer
4-20 mA condenser pressure transducer
Cable Assembly for PT5N 3 m
4.1 CWC15KIT and CWC30KIT: wiring kits
The EC2-XC645CX is provided with 2 socket
connectors with 14 and 6 pins.
For the wiring, the CWC15KIT (1.5 m cable
length) or CWC30KIT (3.0 m cable length) have
to be used.
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