SCM CUBO2 AQUA Manuel page 6

EN
1 Introduction
CUBO AQUA is an high efficiency condensing unit (for CO2 transcritical application) equipped with BLDC
2
variable speed compressor. It is compact, easy to install and can directly communicate with the
refrigerated units.
Thanks to these features it is a very efficient (even at partial load) without any compromise with the food
conservation.
This manual refers to CUBO
temperatures.
CUBO AQUA is available with 2 x 2,4 lt liquid receiver or 1 x 8 lt.
2
They are identified as:
UMT/WG T 030 MT DX
2 Safety issues with CO
When the R744 (CO2) is being handled, a qualified person must be present with the suitable equipment.
CO2 has no smell or colour and the operator would not be aware if there were any leaks.
The effects of increased CO2 levels on adults at good health can be summarized:
CO concentration
2
%
0,04 %
0,06 %
0,50 %
1,5 %
3 %
10 % 100.000
30 % 300.000
2.1 Precaution
 Dedicated pressure relief valves are necessary in all those sections of the system which can be
isolated by shut valves. Due to the high thermal coefficient of expansion of liquid CO2, fluid
pipes must not be blocked.
 All SCM units are protected against overpressure with pressure relief valves when required
according to EN378 and PED.
 Given the high pressure that system can reach during operation, special attention must be paid
to connect and regulate the unit.
 Before carrying out any repairs which involve breaking into the system/soldering or welding,
all relevant parts must be emptied of CO2.
 Do not use other than the designated refrigerant (for charging, adding or recharging)
 Refrigerant gas leak may cause suffocation.
Pag. 4-EN
AQUA models designed for cooling and conservation at medium
2
UMT/WG T 045 MT DX
- Safe handling
2
Effects
ppm
< 400 Normal outdoor level
< 600 Acceptable levels
5000 8hours - Long Term Exposure Limit
15.000 15 minute - Short Term Exposure Limit.
30.000 Intoxicating, breathing and pulse rate increase, nausea.
Inconscious, further exposure death.
Quick death.
OEM Manual – CUBO
UMT/WG T 067 MT DX UMT/WG T 100 MT DX
UMT/WG T MT Rev3.0 – 08/10/2021
AQUA
2