II. LUBRICATION
A. Compressors
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 Start-Up, Oil Charging
section.
B. Fan Motor Bearings
Fan motor bearings are permanently lubricated. No further
lubrication is required.
III. OUTDOOR FAN ADJUSTMENT (Fig. 17)
1. Shut off unit power supply.
2. Remove outdoor-fan assembly (grille, motor, motor cover,
and fan).
3. Loosen fan hub setscrews.
4. Adjust fan height as shown in Fig. 17.
5. Tighten setscrews.
6. Replace outdoor-fan assembly.
IV. COMPRESSOR REMOVAL
See Table 1 for compressor information. Follow safety codes
and wear safety glasses and work gloves.
1. Shut off power to unit. Remove unit access panel (front
of unit).
2. Remove refrigerant from system using refrigerant re-
moval methods described in Refrigerant Service Tech-
niques manual.
3. Disconnect compressor wiring at compressor terminal
box. Disconnect high-pressure switch.
4. Remove bolts from discharge service valve and suction
flange.
CAUTION:
Excessive movement of copper lines at
compressor may cause higher levels of vibration when
unit is restored to service.
5. Remove crankcase heater from compressor base.
6. Remove compressor holddown bolts and lift compres-
sor off basepan.
7. Remove compressor from unit.
8. Clean system. Add new liquid line filter drier (biflow
type).
9. Install new compressor and position in unit. Connect
suction and discharge lines to compressor. Connect high-
pressure switch. Ensure that compressor holddown bolts
are in place. Connect wiring. Install crankcase heater.
10. Evacuate and recharge unit.
11. Restore unit power.
Fig. 16 — Separating Coil Sections
Fig. 17 — Outdoor-Fan Adjustment
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