11
Lubrication
FAN MOTORS
have sealed bearings. No provisions are made for lubrication.
COMPRESSOR
has its own oil supply. Loss of oil due to a leak in the system should be the only
reason for adding oil after the system has been in operation. See oil Charge section.
Cleaning Coils –The coils can be cleaned
with a vacuum cleaner, washed out with
water, blown out with low-pressure
compressed air, or brushed (do not use
wire brush).Fan motors are drip-proof.
Clean outdoor coil annually or as required
by location outdoor air conditions. Inspect
coil monthly, and clean as required. Fins
are not continuous through coil sections;
dirt and debris may pass through first
section, become trapped between the 2
rows of fins (38AE020) or 3 rows of fins
(38AE010, 015,025-060) and restrict
outdoor airflow. Use a flashlight to
determine if dirt or debris has collected
between coil sections. Clean coil as
follows.
1. Turn off unit power.
2. Remove screws holding rear corner
posts and top cover in place. Pivot to
cover up 12 to 18 in.(305 to 457 mm)
and support with a rigid support. See
Fig 9.
3. Remove clips securing tube sheets
together at the return bend end of the
coil. Carefully spread the ends of the
coil rows apart by moving the outer
sections. See Fig 10.
4. Using a water hose, or other suitable
equipment, flush down between the
sections of coil to remove dirt and
debris.
5. Clean the remaining surfaces in the
normal manner.
6. Reposition outer coil sections.
7. Reinstall clips, which secure tube
sheets.
8. Replace to cover and rear corner
posts.
Fig.15—Pivot and Support Top Cover
F
ig.16—Coil Cleaning (Typical)
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