Lubrication; Condenser Fan Adjustment - Bryant 558D Installation, Start-Up And Service Instructions Manual

Single package rooftop electric heating/electric cooling units sizes 036-072 3 to 6 tons
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Fig. 36 — Condenser Coil Cleaning
Two-Row Coils (size 072)
NOTE: Save all screws removed in this section. The screws
must be used when reinstalling the equipment.
1. To access 2-row coils, remove screws securing condenser-
fan grille to condenser coil top cover. Place grille on top
of condenser coil top cover as shown in Fig. 36. It is
not necessary to remove the top cover.
2. Remove 3 screws on right side of compressor access panel.
Remove one screw securing condenser coil top cover to
compressor access panel. Remove lower screw secur-
ing condenser coil to compressor mounting plate. See
Fig. 11.
3. Remove 4 screws securing control box access cover. Re-
move 3 screws (located in front of the control box ac-
cess cover) securing condenser coil top cover.
4. Remove screws securing low-voltage access panel. Re-
move 2 screws inside the 24-v barrier access panel. Tilt
sheet metal (located on left side of the 24-v connec-
tions) back 45 degrees.
5. Remove screw securing refrigerant service port access
panel.
6. Remove 2 U-clips securing 2-row coils together at hair-
pin end.
7. Remove screws securing two corner posts. Remove two
corner posts.
8. Use right corner post to prop up right side of con-
denser coil top cover. Slide condenser coil partially out
of condenser fan housing. See Fig. 37.
9. Use left corner post to prop up left side of condenser
coil top cover.
10. Carefully separate the outer coil section 3 to 4 in. from
the inner coil section. See Fig. 38.
11. Use a water hose or other suitable equipment to flush
down between the 2 coil section to remove dirt and de-
bris. Clean the outer surfaces with a stiff brush in the
normal manner.
12. Secure inner and outer coil together with U-clip.
13. Reposition the outer and inner coil section.
14. Reverse the procedure outlined above to reinstall
equipment.
Fig. 37 — Propping Up Condenser Coil Top Cover
CONDENSER
FAN
II. LUBRICATION
A. Compressors
Each compressor is charged with correct amount of oil at the
factory.
B. Fan-Motor Bearings
Fan-motor bearings are of the permanently lubricated type.
No further lubrication is required. No lubrication of condenser-
or evaporator-fan motors is required.
III. CONDENSER-FAN ADJUSTMENT (Fig. 39)
Shut off unit power supply. Remove condenser-fan assembly
(grille, motor, and fan) and loosen fan hub setscrews. Adjust
fan height as shown in Fig. 39. Tighten setscrews and re-
place condenser-fan assembly.
—29—
Fig. 38 — Separating Coil Sections

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