Carrier 38EV024320 - Manual (Page 44)

A CAUTION
Fin damage can result in higher operating costs or com­
pressor damage. Do not use flame, high-pressure water,
steam, volatile or corrosive cleaners on fins or tubing.
Follow these instructions carefully. Contact your dealer
if you encounter problems.
1. Shut off power to unit.
2. Clean coil and heat sink using vacuum cleaner and coil
crevice tool (see Fig. 32). Work crevice tool vertically
making sure tool only touches dirt on coil fins. To pre-
“vent fin-damage, do not “scrub” fins with tool or move
tool horizontally.
3. If oil deposits are present, spray coil and heat sink with
ordinary household detergent. Wait 10 minutes then
proceed to step 4.
4. Using garden hose, spray coil vertically downw;ard
with a constant stream of water at moderate pressure
(see Fig. 33). Keep nozzle at a 15 to 20 degree angle,
about 3-in. (76 mm) from coil face and 18-in. (457 mm)
from tube. Spray so debris is washed out of coil and
heat sink.
5. Restore power to unit.
40QV Fan Coil, 58SSB Blower Accessory Service and
Maintenance—
Refer to related installation instructions for component
replacement, service and maintenance procedures.
For blower speed inspection and adjustment procedures see
related instructions and 38EV or 38QV outdoor unit instal­
lation instructions.
Fig. 32—Crevice Tool Fig. 33—Positioning Hose to Spray Coil
A87037 A87050