Clean Unit; General; Cleaning Of Coil, Casing And Basin - Frick IDSC / ECOSS Series Installation Operation & Maintenance

MAINTENANCE WORK
Remove leaks:
WARNING
Danger of injuries and damage to property with escap-
ing refrigerant (see Appendix I, 6.5 Maintenance work)
Strainer And Basin
Clean per maintenance schedule.
Level Of Water
ü Fill level prior to energizing the recirculation water pump
is 17" (measured from the inside of the depressed area
of the basin).
ü The operating water level in the basin is 14¼" (measured
from the inside of the depressed area of the basin).
Fans
Maintenance Required every 6 months
ü Check the fans for dirt build-up and clean as required.
ü Check that fan drive runs smoothly.
o If vibrating, remove imbalances; Tighten and correct
blade fixtures and blade settings where required.
ü Check and replace fan bearing if running sound and
smoothness changes.
ü Check and replace fan motor bearing if required; clean
and repair motor.
ü Check bolts on fan wheels with threaded blades.
If corrosion present, replace bolts.
ü Check fan blades for corrosion and replace if necessary.
Pumps
ü Check for leaks while the pump is running.
ü Listen for unusual sounds or vibrations.
ü Note any strange odors.
ü Perform lockout/tagout.
NOTICE
Proper isolation is not just the electrical, but hydraulic
energy (valves) as well.
Mechanical Inspection:
ü Check that mounting points are secure
ü Inspect the mechanical seal and packing
ü Inspect the pump flanges for leaks
ü Inspect coupling
Lubrication:
ü Lubricate the motor and pump bearing per manufacturer's
guidelines. Do not over-lubricate! More bearing damage
occurs as a result of over-greasing than under-greasing.
If the bearing has a vent cap, remove the cap and run
pump for 30 minutes before reinstalling cap. This allows
excess grease to work its way out of the bearing.
Electrical/motor:
ü Check that all terminations are tight.
ü Inspect motor vents and windings for dust/dirt build-up.
Clean as necessary.
ü Inspect starter/contactor for arcing, overheating, etc.
IDSC/ECOSS EVAPORATIVE CONDENSERS
™
MAINTENANCE
ü Put a megohmmeter on the windings to check for insula-
tion failure.
Elimination Of Water Drops
Clean and remove debris from drift eliminators.
Water Distribution System And Nozzles
Inspect and clean threaded nozzles if necessary.

CLEAN UNIT

General

For easy cleaning it is possible to open the fan panels at the
top of the unit (see Figure 18).
Figure 18 - Open Fan Panels on Top of the Unit
If cleaning agents are used they must be compatible with
304/304L and must be environmentally friendly. Any sub-
stances which are harmful to the environment are prohibited.
When cleaning agents are used, the corrosion resistance of
the unit's materials to the applied cleaning agent has to be
observed and properly evaluated! Warranty is null and void
in case of non-compliance.
NOTICE
If during maintenance or cleaning any corrosion is de-
tected, please contact the manufacturer directly. (see
Appendix 1, 6.6.1 General)

Cleaning Of Coil, Casing And Basin

ü Clean coil, casing, and basin by rinsing with warm wa-
ter (approximately +80°F) and/or with environmentally
friendly cleaning agents.
ü If cleaning agents are used, rinse thoroughly with water.
NOTICE
Danger of damage to property!
Water or steam jets can damage fans, electrical lines or
other components.
ü Ensure that electrical connections and motors, as well as
components and stored goods at the setup point are not
touched by water or steam jets. Cover these if required.
140.010-IOM (APR 2018)
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