Carrier 38QF - Manual (Page 15)

COIL REPAIR — A flare-union coupling is used
for E-coil repair. A kit is available, with instructions,
thru Carrier Service Parts.
COMPRESSOR contains factory oil charge. If oil
requires replenishment, see Table 7 for oil recharge
and Carrier Standard Service Techniques Manual,
Chapter 1, Refrigerants, page 1-21, for instructions.
Use Carrier PP33-1, Texaco WFI-32 or Suniso3GS
oil.
Coil Cleaning to be done at the beginning of each
cooling season or more often if required.
C.'M'TION: Fin damage or remo\al can result
in higher operating costs or compressor damage.
Do not use flame, high-pressure water, steam
or volatile or corrosive cleaners »m fins and
tubing. Follow these tnstruetions carefulh.
Contact voiii dealer i1 vou encounter problems.
1. Shut off power to unit.
2. Remove louvered casing by taking out 16 screws
securing it to the cabinet and sliding it away from
the coil.
Clean coil using vacuum cleaner and its crevice
tool (see Fig. 25). Work crevice tool vertically
making sure tool only touches dirt on fins. To
prevent fin removal, do not “scrub”fins with tool
or move tool horizontally.
6. Reinstall louvered casing being careful not to
damage coil.
7. Restore power to unit.
3.
4. If oil deposits are present, spray coil with house­
hold detergent (Fantastic, Lestoil, 409, or any
similar type). Wait 10 minutes then proceed to
step 5.
5. Using garden hose, spray coil vertically down­
ward with a constant stream of water at moderate
pressure (see Fig. 26). Keep nozzle at a 15 to 20
degree angle, about 3 in. from coil face and 18 in.
from tube. Spray so debris is washed out and
away from coil.
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