Carrier 23 XL installation instructions 23XL Drive End View Frame 1 and 2 Machines

Fig. 8 Ð 23XL Drive End View (Frame 1 and 2 Machines)

Refer to Fig. 10 unless otherwise speci®ed.

1.Turn all 4 vessel separation feet to the lowered position (Fig. 11).

2.Disconnect and/or cut the following lines, as required:

a.cooler liquid feed.

b.motor cooling supply from condenser.

c.liquid injection to compressor.

d.bubble line to ¯oat chamber (not shown).

e.optional hot gas bypass and associated solenoid valve wiring (not shown).

f.motor power cables from optional unit mounted starter lugs (not shown).

3.Separate compressor by disconnecting the following:

a.discharge ¯ange from compressor (remove the check valve).

b.oil supply line to compressor and associated solenoid valve wiring.

4.Cover all openings.

5.Be sure all wiring is properly marked. Detach all trans- ducers, switches, and sensor wires. Remove all wire ties required to remove wires from the cooler to the con- denser. Do not cut the wires.

6.Disconnect the rabbet ®t connectors on the tube sheets.

7.Rig vessels apart.

To Separate Compressor from Cooler (Frame 4 Machines)

1.Unbolt the suction ¯ange (Fig. 11).

2.Disconnect the following lines:

a.motor cooling to motor (Fig. 10).

b.motor cooling drain (Fig. 11).

c. optional economizer gas line to compressor rotors (Fig. 10).

d.liquid injection to compressor (Fig. 10).

3.Separate compressor from oil supply system by discon- necting the following:

a.discharge ¯ange from compressor and remove check valve (Fig. 10).

b.oil supply line to compressor and associated solenoid valve wiring (Fig. 10).

4.Cover all openings.

5.Be sure the following electrical connections are disconnected:

a.motor power cables from optional unit-mounted starter lugs (not shown).

b.motor winding temperature sensor (Fig. 10).

c.slide valve increase and decrease capacity control so- lenoid valves (Fig. 10).

d.optional variable VI solenoid valves (Fig. 10).

e.discharge (condenser) pressure transducer (Fig. 10).

6.Unbolt motor support foot (Fig. 10).

7.Rig compressor.

To Separate Oil Separator from Condenser (Frame 4 Machines)

Refer to Fig. 12 unless otherwise speci®ed.

1.Separate the compressor and oil separator by disconnect- ing the following:

a.discharge ¯ange from compressor (secure the check valve). See Fig. 11.

b.oil supply line from separator to compressor.

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