Carel Hecu CO2, User Manual

Page: 5 / 64

5
ENG
Hecu
CO
2
+0300085EN rel. 2.2 - 07.05.2019
Content
1. INTRODUCTION 7
1.1 General features .............................................................................................. 7
1.2 Components and accessories ...................................................................... 7
2. INSTALLATION 8
2.1 Main board: description of the terminals .................................................. 8
2.2 10A single-phase inverter .............................................................................. 9
2.3 12-16 A single-phase, 18-24 A three-phase inverter .............................. 10
2.4 12 A single-phase inverter PSD2 ............................................................... 11
2.5 Unipolar E2V valves for R744 ..................................................................... 14
2.6 Pressure probes (SPKT00**8C0) .............................................................. 14
2.7 Temperature
probes ..................................................................................... 14
2.8 General connection diagram ...................................................................... 15
2.9 Functional
diagrams ..................................................................................... 16
2.10 Installation ...................................................................................................... 18
3. USER INTERFACE 19
3.1 Graphic terminal ........................................................................................... 19
3.2 Description on the display .......................................................................... 19
4. MENU DESCRIPTION 20
4.1 Main menu .....................................................................................................20
5. COMMISSIONING 21
5.1 Guided commissioning procedure ........................................................... 21
6. FUNCTIONS 22
6.1 Unit ON/OFF ..................................................................................................22
6.2 BLDC compressor .........................................................................................22
6.3 Compressor control ......................................................................................25
6.4 Compressor management on LT units (DSS and independent) .......27
6.5 Fans
..................................................................................................................28
6.6 Oil management ...........................................................................................29
6.7 HPV valve management ..............................................................................32
6.8 RPRV valve management ............................................................................33
6.9 Generic
functions ..........................................................................................34
6.10 Default value management ........................................................................35
7. FAST COMMISSIONING 36
7.1 MPXPRO confi guration (SW version
t
4.0) ............................................36
7.2 Ultracell confi guration (SW version
t
2.0)..............................................38
7.3 Ultra EVD EVO module commissioning ..................................................43
7.4 Connecting MPXPRO/Ultracella controllers to Hecu ............................44
8. SIGNALS AND ALARMS 47
8.1 Alarm management ...................................................................................... 47
8.2 Compressor alarms ...................................................................................... 47
8.3 Pressure alarms .............................................................................................48
8.4 Anti liquid return MPX valve alarm ..........................................................49
8.5 High pressure prevention ...........................................................................49
8.6 MPXPRO/UltraCella
alarms .........................................................................49
8.7 Alarm table .....................................................................................................50
9. SOFTWARE UPDATE 58
9.1 Uploading/updating the software .............................................................58
9.2 Software revision history ............................................................................. 61