Profroid MiniCO2OLcompact Notice D'instructions page 44

1 INTRODUCTION .......................................................................................................................................................................
1.1 GOODS RECEIPT ..............................................................................................................................................................
2 DESCRIPTION – CONFIGURATION ...........................................................................................................................................
2.1 GENERAL DESCRIPTION ...................................................................................................................................................
2.2 VARIOUS CONFIGURATIONS ...........................................................................................................................................
2.2.1 Design .........................................................................................................................................................................
2.2.2 Compressors ...............................................................................................................................................................
2.2.3 Refrigerant ..................................................................................................................................................................
2.2.4 Application ..................................................................................................................................................................
2.2.5 Oil management .........................................................................................................................................................
2.2.6 Oil balancing line ........................................................................................................................................................
2.2.7 Transcritical / Subcritical system ................................................................................................................................
2.2.8 Injection valve AKV .....................................................................................................................................................
2.2.9 Miscellaneous .............................................................................................................................................................
2.2.10 Standstill pressure.......................................................................................................................................................
2.2.11 Intercooler ..................................................................................................................................................................
2.2.12 Parallel compression ...................................................................................................................................................
2.2.13 Chiller function ............................................................................................................................................................
2.2.14 External subcooler on gascooler outlet..................................................................................................................
INSTALLATION .........................................................................................................................................................................
3
3.1 RACK HANDLING..............................................................................................................................................................
3.2 LAYOUT RECOMMANDATIONS........................................................................................................................................
3.3 CONNECTIONS TO REFRIGERATION NETWORK ...............................................................................................................
3.3.1 Piping network ............................................................................................................................................................
ELECTRICAL DEVICES ...............................................................................................................................................................
4
4.1 OVERVIEW.......................................................................................................................................................................
4.2 ELECTRICAL MOTOR WIRING...........................................................................................................................................
4.3 CONTROL AND SAFETY DEVICES ......................................................................................................................................
4.3.1 Safety devices .............................................................................................................................................................
4.3.2 Crankase heater..........................................................................................................................................................
4.3.3 Electronic compressor protection module ..................................................................................................................
4.3.4 Electronic oil level regulator ........................................................................................................................................
5 CON T ROLS ...............................................................................................................................................................................
6 C OM MISSIONING ....................................................................................................................................................................
6.1 PRELIMINARY CHECKS .....................................................................................................................................................
6.1.1 Overview .....................................................................................................................................................................
6.1.2 Leak test ......................................................................................................................................................................
6.1.3 Dehydratation of circuits ............................................................................................................................................
6.1.4 Oil level control ...........................................................................................................................................................
6.1.5 Oil ................................................................................................................................................................................
6.1.6 Oil filling ......................................................................................................................................................................
6.1.7 Filling with refrigerant ................................................................................................................................................
6.1.8 Safety tests and presets ..............................................................................................................................................
6.2 STARTING COMPRESSORS ...............................................................................................................................................
6.3 ADDITIONNAL REFRIGERANT CHARGE ............................................................................................................................
6.4 OPERATING CHECKS ........................................................................................................................................................
6.4.1 Compressors ...............................................................................................................................................................
6.4.2 Liquid Receiver ............................................................................................................................................................
6.4.3 Oil separator ...............................................................................................................................................................
6.4.4 Liquid level alarm........................................................................................................................................................
7 OPERATION .............................................................................................................................................................................
7.1 GENERAL INFORMATION ................................................................................................................................................
7.2 SAFETY VALVES PED CATEGORY IV ..................................................................................................................................
7.3 SPECIAL RECOMMENDATIONS ........................................................................................................................................
7.3.1 Filter Driers: Voluntary shut-off of blocked shut-off valves for maintenance operation or long shut-down............. .
7.3.2 Coalescent oil separator : Voluntary shut-off of blocked shut-off valves for maintenance operation or long shut-