Trane 4TWL9048A1000A - Sensor Information; Compressor Discharge Line Temperature Sensor

4TWL9048A-SF-1C-EN
13
SENSORS
Compressor Discharge Line
Temperature Sensor
This table shows the corresponding voltage, resistance
and temperature readings for the Discharge
Temperature Sensor when measured across pins 1 and
10. The power source for the Discharge Temperature
Sensor is 3.2VDC.
7(03 ) 7(03 &
7+(50,6725
5(6,67$1&(
2+06
92/76 '&
3,1 72 3,1
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
7(03 ) 7(03 &
7+(50,6725
5(6,67$1&(
2+06
92/76 '&
3,1 72 3,1
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
Figure 3. Discharge Temperature Sensor
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Aworking Compressor Discharge Temperature Sensor
is required for:
•Protection (High/Low Temperature)
•Preheating (Sump Heat)
• Outdoor EEV Control
•Diagnostics;Reverse rotation,Flooding,Charge
Level
The Discharge Temperature Sensor control contains an
NTC thermistor input for sensing the Compressor
Discharge Temperature. The thermistor has a nominal
resistance of § 10k ohms at 75°F. The minimum range
required for the Discharge Temperature input is —31°F
to 302°F. when measured across pins 1 and 10.
NNoottee:: Secure Installation of Discharge Sensor is
required for reliable compressor & system
operation.