Data Aire gForce Ultra Installation, Operation And Maintenance Manual page 5

5.6 Water/Glycol System .........................................................................................48
5.7 Check a Running Compressor ..........................................................................49
5.8 Refrigerant Handling .........................................................................................49
5.9 Commissioning ..................................................................................................49
5.10 Important Refrigeration Components ................................................................50
5.10.1 Variable Capacity Compressor with VFD ....................................................50
5.10.2 Electronic Expansion Valve ........................................................................50
5.10.3 High Pressure Cutout Switch ......................................................................50
5.10.4 Low Pressure Cutout Switch.......................................................................50
5.10.5 Liquid Line Solenoid Valve ..........................................................................51
6. GLYCOL SYSTEMS................................................................................................52
6.1 Glycol Concentration .........................................................................................52
6.2 Internal (Fluid) Volume - Downflow Units .........................................................52
6.3 Internal (Fluid) Volume - Upflow Units ..............................................................52
6.4 Internal (Fluid) Volume - Fluid Coolers .............................................................53
6.4.1 Fluid Cooler Information .............................................................................53
7. VARIABLE SPEED COMPRESSOR ......................................................................54
7.1 Features ............................................................................................................54
7.2 Oil Management ................................................................................................54
7.3 Crankcase Heaters............................................................................................54
7.4 Oil Level ............................................................................................................54
7.5 VFD Drive ..........................................................................................................54
7.5.1 Local Control for Charging ..........................................................................56
7.5.2 View Drive Alarms .......................................................................................57
8. CONTROLS ............................................................................................................58
9. REGULAR MAINTENANCE ITEMS ....................................................................59
9.1 Air Filters ...........................................................................................................59
9.2 Fuses .................................................................................................................60
9.3 Electric Reheat ..................................................................................................60
9.4 Humidifier ..........................................................................................................60
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