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EVAPORATIVE CONDENSER - GENERAL
Evaporative cooling equipment rejects heat by
evaporating a portion of the recirculated water
spray and discharging it from the unit with the hot,
saturated air. As the spray water evaporates, it
leaves behind the mineral content and impurities
of the supply water. If these residuals are not
purged from the water distribution system, they
will become concentrated and lead to scaling,
corrosion, sludge build-up and biological fouling.
A water treatment monitoring and control system
has been furnished with this unit. Be sure to read
the complete manual that has been furnished. All
water treatment is a combination of bleed water
and chemical treatment for proper control of the
residuals and to prevent any biological
contamination.
Severe Service:
The following maintenance procedures are basic
requirements for normal operating environments.
For severe operating conditions, the frequency of
inspection and service must be increased. Air
containing industrial and chemical fumes, salt,
dust, or other airborne contaminates and
particulates will be absorbed by the recirculating
water system and may form solutions and deposits
harmful to the products and personnel.
Safety:
The recirculating water system contains chemical
additives for water quality control and biological
contaminants removed from the air by the
washing action of the water. Personnel exposed to
the saturated effluent, drift, or direct contact must
use proper precaution. Proper location of the
evaporative condenser requires good judgment to
prevent the air discharge from entering fresh air
intakes or to avoid allowing contaminated
building exhaust from entering the condenser.
Follow local and national codes in locating the
evaporative condenser but as minimum the
evaporative condenser sump must be 15 feet from
the nearest intake.
Batch-loading chemicals into the unit IS
NOT PERMITTED. The control system
must regulate the chemical feed.
The evaporative condenser must be
thoroughly cleaned on a regular basis to
minimize the growth of bacteria, including
Legionella Pneumophila, to avoid the risk
of sickness or death. Service personnel
must wear proper personal protective
equipment. DO NOT ATTEMPT ANY
SERVICE UNLESS THE FAN MOTOR IS
LOCKED OUT.
WARNING
WARNING
