Contents
Contents
General safety guidelines.............................................................................................................................. 5
Safety symbols..................................................................................................................................... 5
Changeability of this document......................................................................................................... 6
Associated literature........................................................................................................................... 6
Conditioned based maintenance...................................................................................................... 7
Nomenclature...................................................................................................................................... 7
Description of system and fundamentals of operation............................................................................ 8
System operation description............................................................................................................ 8
Capacity control................................................................................................................................... 9
System operating procedures.................................................................................................................... 12
Oil heaters.......................................................................................................................................... 12
Oil heater operation.......................................................................................................................... 12
Checking the oil level in the oil reservoir....................................................................................... 12
Start-up procedure............................................................................................................................ 13
Chiller operation................................................................................................................................ 15
Condenser water temperature control........................................................................................... 15
Operating log sheet.......................................................................................................................... 15
Operating inspections....................................................................................................................... 16
Need for maintenance or service.................................................................................................... 17
Stopping the system......................................................................................................................... 18
Prolonged shutdown......................................................................................................................... 18
System components description................................................................................................................ 19
General................................................................................................................................................ 19
Compressor........................................................................................................................................ 19
Capacity control................................................................................................................................. 19
Compressor lubrication system....................................................................................................... 19
Oil pump............................................................................................................................................. 20
Oil heater............................................................................................................................................ 23
Motor driveline.................................................................................................................................. 23
Heat exchangers................................................................................................................................ 23
Refrigerant flow control.................................................................................................................... 24
Optional service isolation valves..................................................................................................... 24
Optional hot gas bypass................................................................................................................... 24
OptiView™ control center................................................................................................................. 25
Solid state starter (optional)............................................................................................................ 25
Variable speed drive (optional)........................................................................................................ 25
Operational maintenance........................................................................................................................... 26
Oil return system............................................................................................................................... 26
Changing the dehydrator................................................................................................................. 26
The oil charge.................................................................................................................................... 26
Model YK Style G R-134a or R-513A
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