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M-SV-001-EN Rev. G
4. Using a multimeter set for resistance measurements, place the leads in terminal 1 and 2 of
the cable plug. Refer to "Figure 4-149 J17 Connector". The value should correspond with a
negative temperature coefficient (NTC) thermistor 10KΩ @ 70°F (21° C).
4.19.2.6 SCR Temperature Sensor General Removal
1. Isolate the compressor power as described Section "1.8 Electrical Isolation" on page 19.
2. Remove the Soft Start. Refer to "4.15.3 Soft Start Removal and Installation" on page 112.
3. Continue to Section "4.19.2.7 SCR Temperature Sensor Removal - TTS300/TGS230" for TT300/
TG230 compressors and for all other TT/TG compressors, continue to Section "4.19.2.8 SCR
Temperature Sensor Removal - TTS/TGS/TTH/TGH Rev. F and Earlier (Except TTS300/TGS230)"
4.19.2.7 SCR Temperature Sensor Removal - TTS300/TGS230
1. If desired, remove the discharge pressure/temperature sensor connector. Refer to "4.33.4
Pressure/Temperature Sensor Removal and Installation" on page 236.
Figure 4-150 Discharge Pressure/Temperature Sensor Connector Removal - TTS300/TGS230
2. Remove the Terminal Block. Refer to "4.12.2.2 Specific 3-Phase Main Voltage Input Terminal
Block Removal - TTS300/TGS230" on page 98.
3. Disconnect the SCR Temperature Sensor from the Compressor Controller Harness and
gently pull the sensor cable under the SCR Cooling Manifold from the discharge side of the
compressor. Refer to "Figure 4-151 SCR Temperature Sensor Connector - TTS300/TGS230".
Figure 4-151 SCR Temperature Sensor Connector - TTS300/TGS230
4. Remove the SCR Temperature Sensor from the SCR Cooling Manifold. Refer to "Figure 4-152
SCR Temperature Sensor Removal -TTS300/TGS230" on page 139.
Discharge P/T Sensor
SCR Temperature
Sensor Connector
• • • CAUTION • • •
Be careful to not damage the wire exiting the SCR Temperature Sensor during removal.
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