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Minerals and other water system contaminants produce
deposits, scales, slime, or algae on the heat-transfer surfaces
exposed to water. Fouled surfaces decrease cooling capacity.
We recommend that you consult a water treatment specialist to
develop a treatment program that will minimize fouling.
To clean the evaporator:
Consult a water treat-
ment specialist for rec-
ommendations on the best
chemicals to use to remove
contaminants from the
evaporator and process fluid
circuit surfaces that come in
contact with water.
Thoroughly flush
cleaning chemicals
from the evaporator and all
water-contact surfaces in the
process fluid circuit.
For water-cooled condensers:
You should consult a water treatment
specialist for recommendations on the
best chemicals to use to remove contami-
nants from the condenser. Thoroughly
flush chemicals from the condenser
before resuming operation.
For air-cooled condensers:
The air-cooled condensers can accumulate dirt and clog quick-
ly if it is run in a dusty or dirty environment. A clogged
condenser increases refrigerant pressure, lowers performance
and may cause the fan motors and compressor to overheat.
Clean dirty coil surfaces with a soft brush.
Brush and rinse in the direction of the fins to prevent
bending the fins.
Rinse with
cool water or
a commercial
coil cleaner.
CLEANING
EVAPORATORS
microKool Portable Chillers UGH004/0999
5-4 MAINTENANCE
Evaporator
Fluid tank
1
2
CLEANING
CONDENSERS
1
2
Condenser coils