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down..........................................................................................................................................................................................................
7.3.3
Subcooler: Voluntary shut-off of blocked shut-off valves for maintenance operation or long shut-down.................
7.3.4
Liquid receivers ...........................................................................................................................................................
7.3.5
The suction filters MT and BT can be replaced or cleaned after closing the blocked valves on the headers and on
the suction of the compressors ................................................................................................................................................
7.3.6
Compressors ...............................................................................................................................................................
8
MAINTENANCE ........................................................................................................................................................................
8.1
RECOMMENDATIONS .....................................................................................................................................................
9
SHUT DOWN OF THE EQUIPEMENT ........................................................................................................................................
10
TROUBLESHOOTING ................................................................................................................................................................
11
ADDITIONAL FUNCTIONALITIES – CO2OLtec EVO SYSTEM USING EJECTORS .......................................................................
11.1
OVERVIEW.......................................................................................................................................................................
11.2
BASE PRINCIPLE...............................................................................................................................................................
11.3
KEY DIFFERENCES BETWEEN CO2OLtec EVO AND TRADITIONAL CO2 SYSTEMS ............................................................
11.3.1 Cycle presentation .....................................................................................................................................................
11.3.2 Description ..................................................................................................................................................................
11.4
SPECIFIC FUNCTIONS COMPARED WITH A TRADITIONAL TRANSCRITICAL SYSTEM ......................................................
11.4.1 Ejector .........................................................................................................................................................................
11.4.2 Oil Management and oil trap .....................................................................................................................................
11.4.3 CO2 Pump ...................................................................................................................................................................
11.5
RECOMMENDATIONS TO DESIGN AN INSTALLATION USING EJECTORS .........................................................................
11.5.1 Liquid receiver pressure ..............................................................................................................................................
11.5.2 Receiver volume selection...........................................................................................................................................
11.5.3 Selection of the consumer expansion valves...............................................................................................................
11.5.4 Limiting the pressure drop of the refrigeration lines ..................................................................................................
11.5.5 Use of consumers with high Delta Pressure................................................................................................................
11.6
COMMISSIONING ............................................................................................................................................................
11.7
MAINTENANCE................................................................................................................................................................
11.7.1 Filters ..........................................................................................................................................................................
11.7.2 Oil management .........................................................................................................................................................
11.7.3 Oil trap and oil pumps ................................................................................................................................................
11.7.4 Ejectors .......................................................................................................................................................................
11.7.5 CO2 Pump ...................................................................................................................................................................
APPENDIX 1: ESK OIL SEPARATOR CARTRIDGE REPLACEMENT
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