OEM Manual - CUBO
Contents
1
Introduction ....................................................................................................................................................................... 4
2
2
2.1
Precaution ................................................................................................................................................................. 4
3
4
Unit installation ................................................................................................................................................................. 7
5
Piping details ..................................................................................................................................................................... 8
5.1
Pipe Connections (Multi-Split) ................................................................................................................................ 8
5.2
Oil traps ..................................................................................................................................................................... 8
6
6.1
Control of the unit tightness ................................................................................................................................... 9
6.2
6.3
6.4
Inspection of the water loop................................................................................................................................ 10
6.5
Earth connection ................................................................................................................................................... 10
7
Commissioning ............................................................................................................................................................... 11
7.1
Evacuation and pre-charge .................................................................................................................................. 11
7.1.1
"VACUUM", SW function details ................................................................................................................... 11
7.2
Refrigerant & Oil Charging ................................................................................................................................... 12
7.2.1
Oil charge ....................................................................................................................................................... 12
7.2.2
7.2.3
7.2.4
Charging procedure ...................................................................................................................................... 15
8
8.1
User Interface ........................................................................................................................................................ 16
8.2
On/Off unit ............................................................................................................................................................. 17
8.3
Regulation set point .............................................................................................................................................. 18
8.4
8.5
9
9.1
9.2
Serial connections and wirings ............................................................................................................................ 22
10
Recommended Annual Checks ..................................................................................................................................... 23
11
List of alarms .................................................................................................................................................................. 26
11.1
Hecu alarm............................................................................................................................................................. 26
11.2
PSD (Power+) alarm code ..................................................................................................................................... 31
11.3
PSD led status ........................................................................................................................................................ 33
12
Troubleshooting ............................................................................................................................................................. 34
13
Compressor Envelope ................................................................................................................................................... 34
14
15
HECU Controller layout ................................................................................................................................................. 37
16
Terminals blocks connection ........................................................................................................................................ 38
17
Dimensional drawing ..................................................................................................................................................... 38
18
General information and limits .................................................................................................................................... 39
19
Electrical details .............................................................................................................................................................. 39
20
Cooling capacity Table ................................................................................................................................................... 41
UMT/WG T MT Rev3.0 - 08/10/2021
AQUA
2
- Safe handling ........................................................................................................................... 4
EN
Pag. 3-EN