OEM Manual – CUBO
2
SMART
Pag. 4
Contents
1
Introduction ....................................................................................................................................................................... 5
2
Safety issues with CO
2
- Safe handling ........................................................................................................................... 5
2.1
Precaution ................................................................................................................................................................. 5
3
Unit description & Main components ............................................................................................................................. 7
4
Unit installation ................................................................................................................................................................. 8
5
Piping details ..................................................................................................................................................................... 9
5.1
Pipe Connections (Multi-Split) ................................................................................................................................ 9
5.2
Oil traps ..................................................................................................................................................................... 9
6
Test and inspection before start-up ............................................................................................................................ 10
6.1
Control of the unit tightness ................................................................................................................................ 10
6.2
Preliminary controls according to EN 60204-1, visual controls ....................................................................... 10
6.3
Management of the system. Configuration of the controllers ........................................................................ 10
6.4
Inspection of the gas cooler ................................................................................................................................ 11
6.5
Earth connection ................................................................................................................................................... 11
7
Commissioning ............................................................................................................................................................... 12
7.1
Evacuation and pre-charge .................................................................................................................................. 12
7.1.1
“VACUUM”, SW function details ................................................................................................................... 12
7.2
Refrigerant & Oil Charging ................................................................................................................................... 13
7.2.1
Oil charge ....................................................................................................................................................... 13
7.2.2
Procedure for additional oil refill ................................................................................................................ 13
7.2.3
Estimation of the refrigerant charge .......................................................................................................... 14
7.2.4
Charging procedure ...................................................................................................................................... 15
8
User Interface and main Software features ................................................................................................................ 16
8.1
User Interface ........................................................................................................................................................ 16
8.2
On/Off unit ............................................................................................................................................................. 17
8.3
Regulation set point .............................................................................................................................................. 18
8.4
MPXPRO and ULTRACELLA/EVO CAREL configuration. .................................................................................... 19
8.5
MPXPRO and ULTRACELLA/EVO CAREL regulation ........................................................................................... 20
9
Serial Communication (PSD drivers, Evaporators and Supervisory System) .......................................................... 21
9.1
Communication with evaporators (features and requirements) .................................................................... 21
9.2
Serial connections and wirings ............................................................................................................................ 22
10 Recommended Annual Checks ..................................................................................................................................... 23
11 List of alarms .................................................................................................................................................................. 24
11.1
Hecu alarm............................................................................................................................................................. 24
11.2
PSD (Power+) alarm code ..................................................................................................................................... 29
11.3
PSD led status ........................................................................................................................................................ 31
12 Troubleshooting ............................................................................................................................................................. 32
13 Compressor Envelope ................................................................................................................................................... 33
14 Refrigerant drawing (P&I) .............................................................................................................................................. 34
15 HECU Controller layout ................................................................................................................................................. 35
16 Terminals blocks connection ........................................................................................................................................ 36
17 Dimensional drawing ..................................................................................................................................................... 36
18 General information and limits .................................................................................................................................... 37
19 Electrical details .............................................................................................................................................................. 37
20 Cooling capacity Table ................................................................................................................................................... 38
21 Conversion pressure-temperature CO2 (R744) .......................................................................................................... 40
22 Note ................................................................................................................................................................................. 41
