Lubrication, Two-position damper – Carrier 48LJD User Manual
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Lubrication
COMPRESSORS — Each compressor is charged with the
correct amount of oil at the factory.
FAN MOTOR BEARINGS — Fan motor bearings are of
the permanently lubricated type. No further lubrication is
required. No lubrication of condenser or evaporator fan mo
tors is required.
Manual Outdoor-Air Damper
— if outdoor-air damper
blade adjustment is required, see Manual Outdoor-Air Damper
section on page 10.
COIL CORNER
CENTER BAFFLE
TOP PANEL
Two-Position Damper —
Damper section on page 11.
Refer to Two-Position
Economizer Adjustment
— Refer to Optional Econ
omizer section on page 11.
Condenser-Fan Adjustment (Fig. 31)
— Shut off
unit power supply. Remove condenser-fan assembly (grille,
motor, motor cover, and fan) and loosen fan hub setscrews.
Adjust fan height as shown in Fig. 31. Tighten setscrews
and replace condenser-fan assembly.
Refrigerant Charge
— Amount of refrigerant charge
is listed on unit nameplate (also refer to Table 1). Refer to
Carrier GTAC2-5 Charging, Recovery, Recycling, and Rec
lamation training manual and the following procedures.
Unit panels must be in place when unit is operating dur
ing charging procedure.
NO CHARGE — Use standard evacuating techniques. Af
ter evacuating system, weigh in the specified amount of re
frigerant. (Refer to Table 1.)
TOP VIEW
TOP PANEL
Fig. 31 — Condenser-Fan Adjustment
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