7
Operation
Entering water temperature in excess of 125°F may result in fill deformation.
TOWER PERFORMANCE
–Keep the cooling tower clean and water distribution uniform
to obtain continued maximum cooling capacity.
The capacity of a cooling tower to cool water to a given cold water temperature varies
with the wet-bulb temperature and the heat load applied to the cooling tower. As the
wet-bulb temperature drops, the cold water temperature also drops. However, the cold
water temperature does not drop linearly with the wet-bulb temperature.
A cooling tower will not control heat load. The flow rate of water circulated through
the cooling tower will determine the temperature range of cooling in conjunction with
a given heat load. The hot water and cold water temperatures will increase with higher
heat loads.
ClearSky Plume Abatement System
ClearSky towers have the unique ability to vary operation between
Maximum Thermal
Performance Mode
and
Maximum Plume Abatement Mode
. This system variation
is achieved by manipulating motor operated control linkages to alter the air paths
between heated saturated air or dry ambient air. Mechanically actuated vent doors
located in a horizontal plane just above the mist eliminators at the base of dry air ducts
can be opened to permit passage of heated saturated air from the wet section of the
cooling tower into dry path air ducts. Dry dampers mounted on the tower’s exterior
can regulate the amount of dry ambient air passing through the dry ducts and then
heated in the ClearSky heat transfer media packs before being exhausted through
the fan cylinder. By closing the dry dampers and opening the vent doors, heated
saturated air is permitted to pass through the ClearSky media passages designed for
dry air. Thus maximum heated saturated air flow through the fill is achieved producing
maximum cooling.
MAXIMUM THERMAL PERFORMANCE MOD
E–Position the dry dampers in the
closed position and position the vent doors in the open position.
MAXIMUM PLUME ABATEMENT MODE
–Position the vent doors in the closed posi-
tion and position the dry dampers in the open position.
Caution
➠
operation
