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4.7 Interstage Pipe - TTH/TGH
The Interstage Pipe connects the first-stage impeller output to the second-stage impeller input of the High Lift
compressor. It is also the connection point for the economizer port.
Figure 4-37 Interstage Pipe
4.7.1 Interstage Pipe Removal and Installation
4.7.1.1 Interstage Pipe 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.
3. Disconnect the Interstage Pressure/Temperature (P/T) Sensor harness. Refer to Figure 4-38 Interstage
Pipe Removal for this and the following steps.
4. Disconnect the pipe connected to the Economizer port.
5. Remove the four (4) M10x40 fasteners (2 per side) and remove the Interstage Pipe.
6. Remove the O-rings from the flanges.
Figure 4-38 Interstage Pipe Removal
4.7.1.2 Interstage Pipe Installation
1. Clean all mating surfaces.
2. Obtain two (2) new O-rings for the Interstage Pipe and lubricate them with O-lube.
3. Install the new O-rings into the grooves of the Housing Extension and the Second-Stage Suction
Housing. Refer to Figure 4-38 Interstage Pipe Removal for this and the following steps.
Page 78 of 294 - M-SV-001-EN Rev. H 1/23/2023
Содержание Turbocor TT Series
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