Carrier WeatherExpert 48LC Series Service And Maintenance Instructions page 6

must be completely removed prior to using low velocity clean wa-
ter rinse.
PERIODIC CLEAN WATER RINSE
A periodic clean water rinse is very beneficial for coils that are ap-
plied in coastal or industrial environments. However, it is very im-
portant that the water rinse is made with a very low velocity water
stream to avoid damaging the fin edges. Monthly cleaning as de-
scribed below is recommended.
ROUTINE CLEANING OF COIL SURFACES
Periodic cleaning with Totaline
cleaner is essential to extend the life of coils. This cleaner is avail-
able from Carrier Replacement Components Division as part
number P902-0301 for a one gallon container, and part number
P902-0305 for a 5 gallon container. 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
unit's regularly scheduled maintenance procedures to ensure long
life of the coil. Failure to clean the coils may result in reduced du-
rability in the environment.
Avoid use of:
• coil brighteners
• acid cleaning prior to painting
• high pressure washers
• poor quality water for cleaning
Totaline environmentally sound coil cleaner is nonflammable,
hypo allergenic, non bacterial, and a USDA accepted biodegrad-
able agent that 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.
One-Row Coil
Wash coil with commercial coil cleaner. It is not necessary to re-
move top panel.
Two-Row Coils
Clean coil as follows:
1. Turn off unit power, tag disconnect.
2. Remove top panel screws on condenser end of unit.
3. Remove condenser coil corner post. See Fig. 8. To hold top
panel open, place coil corner post between top panel and cen-
ter post. See Fig. 9.
4. Remove screws securing coil to compressor plate and com-
pressor access panel.
5. Remove fastener holding coil sections together at return
end of condenser coil. Carefully separate the outer coil
section 3 to 4-in. from the inner coil section. See Fig. 10.
6. Use a water hose or other suitable equipment to flush down
between the 2 coil sections to remove dirt and debris. Clean
the outer surfaces with a stiff brush in the normal manner.
7. Secure inner and outer coil rows together with a field-sup-
plied fastener.
8. Reposition the outer coil section and remove the coil corner
post from between the top panel and center post. Reinstall the
coil corner post and replace all screws.
environmentally sound coil
®
Fig. 8 — Cleaning Condenser Coil
Fig. 9 — Propping Up Top Panel
Fig. 10 — Separating Coil Sections
Totaline Environmentally Sound Coil Cleaner Application
Equipment
• 2 / gallon garden sprayer
1
2
• Water rinse with low velocity spray nozzle
6