SCM CUBO2 AQUA - Serial Communication (PSD Drivers, Evaporators and Supervisory System); Communication with Evaporators (Features and Requirements)

EN
OEM Manual – CUBO
2
AQUA
UMT/WG T MT Rev3.0 – 08/10/2021 Pag. 21-EN
21
9 Serial Communication (PSD drivers, Evaporators and Supervisory
System)
9.1 Communication with evaporators (features and requirements)
CUBO2 AQUA condensing unit is managed by HECU controller (Carel).
In case the controllers used to manage the refrigerated units are Carel (MPXPRO or ULTRACELLA), they can
be connected via RS485 serial line to the HECU.
The main benefits coming from this serial communication between condensing unit and evaporators are:
 Optimized oil management with “Oil washing function”
 Optimized suction pressure regulation by using “Floating Setpoint”.
 Evaporator setup and monitoring directly by Cubo2 AQUA user interface.
The communication between condensing unit and evaporators controller is allowed only with some
specific model of controllers (MPXPRO or ULTRACELLA) equipped with a specific software version. Please,
refer to the below tables to check the compatibility.
MPXPRO
CUBO2 AQUA
SW version
(Hecu)
MPXPRO SW version
Compatible for serial communication (YES/NO)
Type of electronic expansion valve
EXV Carel
PWM or Tev
2.1.362 or
previous
3.3 or higher
YES
NO
2.1.662
3.3 or higher
YES
NO
3.0.12
3.3 or higher
YES
NO
ULTRACELLA
CUBO2 AQUA
SW version
(Hecu)
ULTRACELLA
SW version
Compatible for serial communication (YES/NO)
EXV driver model for Carel valves ONLY
EVD Evo (SW version 5.6 or
higher)
EVDice
2.1.362 or
previous
Any version
NO
NO
2.1.662
1.9 - 2.0
YES
NO
2.1
YES
NO
3.0.12
1.9 - 2.0
YES
NO
2.1
YES
YES