Equipment Precautions; General Maintenance Information; Warranties - BAC FXV-0806-12D Series Operation & Maintenance Manual

Equipment Precautions

NOTICE
• The basin heater is not designed to prevent icing during unit operation.
• BAC units are typically installed immediately after shipment and many operate year round. However, if the unit is to be stored for a
prolonged period of time either before or after installation, certain precautions should be observed, as outlined in "Unit Operation and
Storage" on page 4.
• For fan motors controlled with VFDs, when reversing the direction of fan rotation, allow the fan to come to a complete stop before
restarting the motor.
• Do not use oils containing detergents for bearing lubrication. Detergent oils will remove the graphite in the bearing sleeve and cause
bearing failure. Also, do not disturb bearing alignment by tightening the bearing cap adjustment on a new unit as it is torque-adjusted
at the factory.
• Do not use steam or high pressure water to clean PVC eliminators or materials other than steel.
• Pressure greater than 10.0 psig may cause damage to the distribution system.
• never use chloride or chlorine based solvents such as bleach or muriatic (hydrochloric) acid to clean stainless steel. It is important to
rinse the surface with warm water and wipe with a dry cloth after cleaning.

General Maintenance Information

The services required to maintain a piece of evaporative cooling equipment are primarily a function of the quality of the air and water in the
locality of the installation:
• AIR: The unit should be located such that unusual quantities of industrial smoke, chemical fumes, salt, or heavy dust do not enter the
equipment. Such airborne impurities entering into the equipment and absorbed by the recirculating water, which can form a corrosive
solution.
• WATER: As water evaporates from the equipment, dissolved solids are left behind, which were originally contained in the make-up water.
These dissolved solids may be either alkaline or acidic and as they are concentrated in the circulating water, they can cause scaling or
accelerated corrosion.
The extent of impurities in the air and water determines the frequency of most maintenance services and also governs the extent of water
treatment which can vary from a simple continuous bleed and biological control to a sophisticated treatment system. Refer to "Water
Treatment" on page 25 and "Biological Control" on page 27 for more details.

Warranties

Please refer to the Limitation of Warranties in the submittal package applicable to and in effect at the time of the sale/purchase of these
products. Described in this manual are the recommended services for start-up, operation, and shutdown, and the approximate frequency
of each.
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