Carrier 50TC*17 Series Service And Maintenance Instructions page 9

Remove Surface Loaded Fibers
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 can be
easily bent over and damage to the coating of a protected
coil) 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 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 a very low−velocity water stream to avoid damaging
the fin edges. Monthly cleaning as described below is
recommended.
CAUTION
UNIT DAMAGE HAZARD
Failure to follow this CAUTION can result in reduced
unit performance or unit shutdown.
Use only the recommended approved cleaning
procedures for proper system performance.
Routine Cleaning of Coil Surfaces
Periodic cleaning with TotalineR environmentally sound
coil cleaner is essential to extend the life of coils. This
cleaner is available
Components Division as p/n: P902- 0301 for one-gallon
(3.8L) container, and P902- 0305 for a 5-gallon (18.9L)
container. It is recommended that all coils, including
standard aluminum, pre−coated,
E−coated coils be cleaned
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
durability in the environment.
Avoid use of:
S coil brighteners
S acid cleaning prior to painting
S high pressure washers
S poor quality water for cleaning
TotalineR environmentally sound coil cleaner is a non-
flammable, hypo allergenic, non bacterial, USDA accept-
ed biodegradable agent that will not harm the coil or sur-
rounding 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.
from Carrier Replacement
copper/copper
with the TotalineR
Two−Row Coils
Clean coil as follows:
1. Turn off unit power and tag the disconnect.
2. Remove the top panel screws on the condenser end of
the unit.
3. Remove the condenser coil corner post. See Fig. 12.
4. Lift and hold the top cover open.
5. Hold the top pan open by placing the coil corner post
between the top panel and center post. See Fig. 13.
Fig. 12 − Cleaning Condenser Coil
Fig. 13 − Propping Up Top Panel
or
6. Remove the screws securing the coil to the compres-
sor plate and compressor access panel.
7. Remove the fasteners holding the coil sections togeth-
er at the return end of the condenser coil. Carefully
separate the outer coil section 3 to 4 in. from the in-
ner coil section. See Fig. 14.
Fig. 14 − Separating Coil Sections
9
C08205
C08206
C08207