Bryant 581J-17-28, Service And Maintenance Instructions

Page: 9 / 84

9
Totaline 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.
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. 11.
To hold the top panel open, place the coil corner post
between the top panel and center post. See Fig. 12.
C08205
Fig. 11 − Cleaning Condenser Coil
C08206
Fig. 12 − Propping Up Top Panel
4. Remove the screws securing the coil to the compres-
sor plate and compressor access panel.
5. Remove the fastener 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. 13.
C08207
Fig. 13 − Separating Coil Sections
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 the inner and outer coil rows together with a
field − supplied 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.
EVAPORATOR COILS
The evaporator coil uses the traditional round- tube,
plate-fin (RTPF) technology. Tube and fin construction
consists of various optional materials and coatings (see
APPENDIX I. MODEL NUMBER NOMENCLATURE).
Coils are multiple-row. On two-compressor units, the
evaporator coil is a face split design, meaning the two
refrigerant circuits are independent in the coil. The bottom
portion of the coil will always be circuit A, with the top of
the coil being circuit B.
Coil Maintenance and Cleaning Recommendation
Routine cleaning of coil surfaces is essential to maintain
proper operation of the unit. Elimination of contamination
and removal of harmful residues will greatly increase the
life of the coil and extend the life of the unit. The
following maintenance and cleaning procedures are
recommended as part of the routine maintenance activities
to extend the life of the coil.
Removing 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 can be used. In either case,
the tool should be applied in the direction of the fins. Coil
surfaces can be easily damaged. Applying the tool across
the fin edges can cause the edges to be easily bent over,
damaging the coating of a protected coil.