SCM CUBO2 AQUA Manuel page 23

OEM Manual – CUBO
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 MPXPRO SW version
(Hecu)
2.1.362 or
3.3 or higher
previous
2.1.662 3.3 or higher
3.0.12 3.3 or higher
ULTRACELLA
CUBO2 AQUA
ULTRACELLA
SW version
SW version
(Hecu)
2.1.362 or
Any version
previous
1.9 - 2.0
2.1.662
1.9 - 2.0
3.0.12
UMT/WG T MT Rev3.0 – 08/10/2021
AQUA
2
Compatible for serial communication (YES/NO)
EXV Carel
Compatible for serial communication (YES/NO)
EVD Evo (SW version 5.6 or
higher)
2.1
2.1
Type of electronic expansion valve
YES
YES
YES
EXV driver model for Carel valves ONLY
NO
YES
YES
YES
YES
PWM or Tev
NO
NO
NO
EVDice
NO
NO
NO
NO
YES
Pag. 21-EN
EN