—23—
4. Using a water hose, or other suitable equipment,
flush down between the sections of coil to remove dirt
and debris.
5. Clean the remaining surfaces in the normal manner.
6. Reposition outer coil sections.
7. Reinstall clips which secure tube sheets.
8. Replace top cover and rear corner posts.
B. Cleaning and Maintaining E-Coated Coils
Routine cleaning of condenser coil surfaces is essential to
maintain proper operation of the unit. Elimination of con-
tamination and removal of harmful residue will greatly
increase the life of the coil and extend the life of the unit.
The following maintenance and cleaning procedures are rec-
ommended as part of the routine maintenance activities to
extend the life of the coil.
Remove Surface Loaded Fibers
Debris such as dirt and fibers on the surface of the coil
should be removed with a vacuum cleaner. If a vacuum
cleaner is not available, a soft brush may be used. The clean-
ing tool should be applied in the direction of the fins. Coil
surfaces can be easily damaged (fin edges bent over) if the
tool is applied across the fins.
NOTE: Use of a water stream, such as a garden hose, against
a surface loaded coil will drive the fibers and dirt into the
coil. This will make cleaning efforts more difficult. Surface
debris must be completely removed prior to using a low
velocity clean water rinse.
Periodic Clean Water Rinse
A periodic clean water rinse is very beneficial for coils that
are applied in coastal or industrial environments. However,
it is very important that the water rinse is made with very
low velocity water stream to avoid damaging the fin edges.
Monthly cleaning is recommended.
Routine Cleaning of E-Coated Coil Surfaces
Monthly cleaning with Environmentally Sound Coil Cleaner
is essential to extend the life of coils. It is recommended that
all coils including standard aluminum, pre-coated, copper/
copper, or E-coated coils be cleaned with the Environmen-
tally Sound Coil Cleaner as described below. Coil cleaning
should be part of the regularly scheduled maintenance pro-
cedures of the unit to ensure long life of the coil. Failure to
clean the coils may result in reduced durability in the
environment.
Environmentally Sound Coil Cleaner is non-bacterial,
biodegradable and will not harm the coil or surrounding
components such as electrical wiring, painted metal surfaces
or insulation. Use of non-recommended coil cleaners is
strongly discouraged since coil and unit durability could be
affected.
The following field-supplied equipment is required for coil
cleaning:
•2
1
/
2
gallon garden sprayer
• water rinse with low velocity spray nozzle
Environmentally Sound Coil Cleaner Application Instructions
Perform the following procedure to clean the coil.
NOTE: Wear proper eye protection such as safety glasses
during mixing and application.
1. Remove all surface debris and dirt from the coil with
a vacuum cleaner.
2. Thoroughly wet finned surfaced with clean water and
a low velocity garden hose, being careful not to bend
fins.
Fig. 22 — Outdoor Fan — 566D Units
Fig. 23 — Pivot and Support Top Cover
Fig. 24 — Coil Cleaning (Typical)
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