Carrier 38AQS012 Installation, Start-Up And Service Instructions Manual page 19

Fig. 15 — Pivot and Support Top Cover
Fig. 16 — Coil Cleaning (38AQS012 Shown)
CLEANING AND MAINTAINING
COILS — Routine cleaning of condenser coil surfaces is es-
sential to maintain proper operation of the unit. Elimination of
contamination and removal of harmful residue will greatly in-
crease the life of the coil and extend the life of the unit. The fol-
lowing maintenance and cleaning procedures are recommend-
ed 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 vac-
uum cleaner. If a vacuum cleaner is not available, a soft brush
may be used. The cleaning tool should be applied in the direc-
tion 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 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 Totaline 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 Totaline Environmentally
Sound Coil Cleaner as described below. Coil cleaning should be
part of the regularly scheduled maintenance procedures of the
unit to ensure long life of the coil. Failure to clean the coils may
result in reduced durability in the environment.
Totaline Environmentally Sound Coil Cleaner is non-
bacterial, biodegradable and will not harm the coil or surround-
ing 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 /
• water rinse with low velocity spray nozzle
Totaline Environmentally Sound Coil Cleaner Application
Instructions — Perform the following procedure to clean the
coil.
NOTE: Wear proper eye protection such as safety glasses dur-
ing mixing and application.
1. Remove all surface debris and dirt from the coil with a
vacuum cleaner.
2. Thoroughly wet finned surfaces with clean water and a
low velocity garden hose, being careful not to bend fins.
3. Mix Totaline Environmentally Sound Coil Cleaner in a
2 1
included with the Cleaner. The optimum solution temper-
ature is 100 F.
DO NOT USE water in excess of 130 F. Enzymes in coil
cleaner will be destroyed and coil cleaner will not be
effective.
4. Thoroughly apply Totaline Environmentally Sound Coil
Cleaner solution to all coil surfaces including finned area,
tube sheets, and coil headers. Hold garden sprayer nozzle
close to finned areas and apply cleaner with a vertical, up-
and-down motion. Avoid spraying in horizontal pattern to
minimize potential for fin damage. Ensure cleaner thor-
E-COATED
oughly penetrates deep into finned areas. Interior and ex-
terior finned areas must be thoroughly cleaned.
5. Allow finned surfaces to remain wet with cleaning solu-
tion for 10 minutes. Ensure surfaces are not allowed to
dry before rinsing. Reapply cleaner as needed to ensure
10-minute saturation is achieved.
6. Thoroughly rinse all surfaces with low velocity clean wa-
ter using downward rinsing motion of water spray nozzle.
Protect fins from damage from the spray nozzle.
Do not use bleach, harsh chemicals, or acid cleaners on
outdoor or indoor coils of any kind. These types of cleaners
are difficult to rinse, and they promote rapid corrosion of
the fin collar - copper tube connection. Only use the Tota-
line Environmentally Sound Coil Cleaner.
Never use high pressure air or liquids to clean coils. High
pressures damage coils and increase the airside pressure
drop. To promote unit integrity, follow cleaning and main-
tenance procedures in this document.
19
gallon garden sprayer
2
/ gallon garden sprayer according to the instructions
2