5. Remove the Liquid Line connection from the compressor and inspect the strainer.
6. Ensure that the cooling paths are clean, as shown in Figure 4-34 Solenoid Cooling Path -
Figure 4-34 Solenoid Cooling Path - TTS300/TGS230
4.6.4 Solenoid and Coil Removal and Installation
NOTE
On certain compressor models, the solenoid valve bodies may have different orifice sizes due to the split-cooling configuration. It is
important to not get the left and right confused when removing and installing these solenoid bodies. Refer to Figure 4-29 Compressor
Cooling Solenoid Coils on page 72.
• • • CAUTION • • •
Removal of the compressor solenoids will release refrigerant. Isolation and recovery of the refrigerant must be performed by a qualified
service technician adhering to industry/ASHRAE standards.
4.6.4.1 Solenoid and Coil Removal
1. Isolate compressor power.
2. Isolate the compressor and recover the refrigerant according to industry standards. Refer to Section 3.1
Refrigerant Containment on page 41.
NOTE
There is no need to recover the refrigerant if only the solenoid coils are being removed.
3. Remove the Service Side Cover. Refer to Section 4.1.3.1 Service Side Cover Removal and Installation on
4. Disconnect the Solenoid Coil J16 connector from the Backplane. Refer to Figure 4-31 Backplane - J16
5. Remove the solenoid retaining nuts and the beveled washers.
6. Note and mark the position of each coil (left and right) as they need to be installed in the same
orientation once the repair has been completed.
7. Remove the Solenoid Coils. Refer to Figure 4-35 Solenoid Component Removal on page 76 for this and
the following four (4) steps.
8. Before removing either cooling valve assembly from the compressor body, identify which cooling valve
assembly goes to the left and to the right passage as there may be different orifice sizes. You can use
the engraving on each orifice body to determine which goes left and right. You should also verify that
the new cooling valve assemblies are the same as the ones being removed.
9. Remove the Solenoid/Tube Plungers using a six-point 13mm deep socket.
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