Carrier 69NT40-541-001, Operation And Service

Page: 97 / 156

7–9 T-316
Figure 7.6 Compressor
1. Discharge Flange
2. High Side Pressure Connection
3. Low Side Pressure Connection
4. Suction Flange
5. Motor End Cover
6. Serial/Model No. Plate
7. Crankcase Heater
8. Bottom Plate 9. Sight Glass
10. Oil Drain Plug
11. Bearing Head
12. Oil Pump
13. Oil Fill Plug
14. Cylinder Head
15. Valve Plate
- - - - -
h. Remove compressor mounting bolts from mounting plate and install mounting plate on replacement
compressor.
i. Install replacement compressor terminal wiring kit, following instructions included with kit.
j. Install high pressure switch on compressor.
k. Install compressor and mounting plate in unit.
l. Connect junction box(es) to compressor and connect all wiring per wiring diagram. Install junction
box cover(s).
m. Install mounting bolts in service valves and torque to 2.77 to 4.15 mkg (20-30 ft/lb).
n. Install a new filter-drier.Install a new filter-drier
.
o. Attach manifold gauge set (with hand valves near vacuum pump) to the liquid line and suction line
process tubes. Dehydrate and evacuate compressor to 500 microns (75.9 cm Hg vacuum = 29.90
inches Hg vacuum).
Turn off valves on both hoses to pump.
p. Fully backseat (open) both hand valves of manifold gauge set.
q. Remove vacuum pump lines.
r. Start unit and check refrigerant charge. (Refer to Section 7.7 .)
s. Check moisture-liquid indicator for wetness. Change filter-drier if necessary. (Refer to Section 7.13 )
t. Check compressor oil level per Section 7.8.6 . Add oil if necessary.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15