66
IOM 1206-1
Unit Maintenance
Figure 25:
Aluminum/Copper Connection
Cleaning Micro-Channel Aluminum Coils
Maintenance consists primarily of the routine removal of dirt
and debris from the outside surface of the fins and repairing
any fin damage.
Cleaning ElectroFin
®
Coated Coils
The following cleaning procedures are recommended as part
of the routine maintenance activities for ElectroFin Coated
Coils. Documented routine cleaning of ElectroFin Coated
Coils is required to maintain warranty coverage.
T
he cleaning
procedure can be downloaded from the ElectroFin web site
www.luvata.com/electrofin
, click on
Procedures for Cleaning.
Remove Surface Loaded Fibers
Surface loaded fibers or dirt should be removed prior to water
rinse to prevent further restriction of airflow. If unable to back
wash the side of the coil opposite that of the coils entering
air
side, then surface loaded fibers or dirt should be removed with
a vacuum cleaner. If a vacuum cleaner is not available, a soft
non-metallic bristle brush may be used. In either case, the 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 loaded fibers must be completely removed prior
to using low velocity clean water rinse
.
Periodic Clean Water Rinse
A monthly clean water rinse is recommended for coils that are
applied in coastal or industrial environments to help to remove
chlorides, dirt and debris. An elevated water temperature (not to
exceed 130ºF) will reduce surface tension, increasing the ability
to remove chlorides and dirt. Pressure washer PSI must not
exceed 900 psig and the nozzel should remain at leat 1 foot from
the coil to avoid damaging fin edges.
Routine Quarterly Cleaning of ElectroFin Coated
Coil Surfaces
Quarterly cleaning is essential to extend the life of an
ElectroFin Coated Coil and is required to maintain warranty
coverage. Coil cleaning shall be part of the unit’s regularly
scheduled maintenance procedures. Failure to clean an
ElectroFin Coated Coil will void the warranty and may result
in reduced
efficiency and durability in the environment.
For routine quarterly cleaning, first clean the coil with the
below approved coil cleaner (see approved products list in
Table 45
). After cleaning the coils with the approved cleaning
agent, use
the approved chloride remover (under the
Recommended Chloride Remover section) to remove soluble
salts and revitalize the unit.
Recommended Coil Cleaner
The following cleaning agent, assuming it is used in
accordance with the manufacturer’s directions on the container
for proper mixing and cleaning, has been approved for use on
ElectroFin Coated Coils to remove mold, mildew, dust, soot,
greasy residue, lint and other particulate:
Table 45: ElectroFin Coated Coil Recommended Cleaning
Agents
CHLOR*RID DTS
™
should be used to remove soluble salts
from the ElectroFin Coated Coil, but the directions must be
followed closely. This product is not intended for use as a
degreaser. Any grease or oil film should first be removed with
the approved cleaning agent.
1
Remove Barrier - Soluble salts adhere themselves to the
substrate. For the effective use of this product, the
product must be able to come in contact with the salts.
These salts may be beneath any soils, grease or dirt;
therefore, these barriers must be removed prior to
application of this product. As in all surface preparation,
the best work yields the best results.
2
Apply CHLOR*RID DTS - Apply CHLOR*RID DTS
directly onto the substrate. Sufficient product must be
applied uniformly across the substrate to thoroughly wet
WARNING
Prior to cleaning the unit, turn off and lock out the main
power switch to the unit and open all access panels.
!
Cleaning Agent
Reseller
Part Number
Enviro-Coil Concentrate
Hydro-Balance Corp
P.O. Box 730
Prosper, TX 75078
800-527-5166
H-EC01
Enviro-Coil Concentrate
Home Depot
H-EC01
Chloride Remover
Chlor*Rid Int’l, Inc.
P.O. Box 908
Chandler, AZ 85244
800-422-3217
Chlor*Rid DTS
