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Fan Shaft Bearing Inspection & Maintenance ........................................................................................................................................ 24
Locking Collars ....................................................................................................................................................................................... 25
Water Distribution System and Heat Transfer Section ............................................................................................................................... 26
Water Level Control .................................................................................................................................................................................... 27
Mechanical Make-up Valve Assembly .................................................................................................................................................... 27
Optional Electric Water Level Control Package ...................................................................................................................................... 28
5. Corrosion Protection .................................................................................................................................................................................. 29
Water Treatment ......................................................................................................................................................................................... 30
Corrosion and Scale Control ....................................................................................................................................................................... 31
Gray Water and Reclaimed Water .............................................................................................................................................................. 32
Chemical Treatment Requirements ............................................................................................................................................................ 32
Passivation ................................................................................................................................................................................................. 32
Biological Control ........................................................................................................................................................................................ 33
Long Term Care of Stainless Steel ............................................................................................................................................................. 33
BAC's Manufacturing Process ................................................................................................................................................................ 33
Jobsite Considerations ........................................................................................................................................................................... 33
Recommended Cleaning Procedure ...................................................................................................................................................... 33
System Cleaning......................................................................................................................................................................................... 34
Coil Cleaning .......................................................................................................................................................................................... 34
Weld Byproduct Cleaning ....................................................................................................................................................................... 34
6. Bleed Rate .................................................................................................................................................................................................. 35
7. Cold Weather Operation ............................................................................................................................................................................. 36
Inspection & Maintenance .......................................................................................................................................................................... 36
Fan Section Icing Protection ....................................................................................................................................................................... 36
Fan Control............................................................................................................................................................................................. 37
Dry Operation ......................................................................................................................................................................................... 37
Basin Water and Internal Piping Freeze Protection .................................................................................................................................... 37
Basin Protection ..................................................................................................................................................................................... 37
Coil Freeze Protection ................................................................................................................................................................................ 38
Minimum Operation ................................................................................................................................................................................ 38
8. Operation Considerations for ...................................................................................................................................................................... 39
Accessories ..................................................................................................................................................................................................... 39
Basin Heater (Optional) .............................................................................................................................................................................. 39
Operation................................................................................................................................................................................................ 39
Stand Alone BAC Heater Control Panel (Optional) ..................................................................................................................................... 40
Operation................................................................................................................................................................................................ 40
Vibration Cutout Switch (VCOS) ................................................................................................................................................................. 42
Mechanical Vibration Cutout Switch (Optional) ...................................................................................................................................... 42
Vertex™ Evaporative Condenser Operation & Maintenance Manual - Table of Contents
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