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T-362
4–40
AL65 Discharge Pressure Transducer (DPT)
Cause:
Compressor Discharge Pressure Transducer (DPT) is out of range.
Component
Compressor Discharge Pressure Transducer (DPT)
Troubleshooting
Confirm accurate DPT pressure readings. See Manifold Gauge Set
.
Corrective Action
Replace DPT if defective.
AL66 Suction Pressure Transducer (SPT), Evaporator Pressure Transducer (EPT)
Cause:
Suction Pressure Transducer (SPT) out of range.
Component
Suction Pressure Transducer (SPT)
Troubleshooting
Confirm accurate EPT and SPT pressure readings. See Manifold Gauge Set
Performing a pre-trip 5-9 test will also check the transducers.
Corrective Action
Replace EPT/SPT if defective.
Troubleshooting
Monitor
Corrective Action
If the alarm persists, it may indicate a failing compressor. See Compressor
AL67 Humidity Sensor
Cause:
Humidity Sensor (HS) reading out of range.
Component
Humidity Sensor (HS)
Troubleshooting
Make sure the HS is properly connected in the socket.
Make sure the HS wires have not been damaged.
See
to test operation of Humidity Sensor.
Corrective Action
Monitor, replace HS if alarm persists.
AL69 Evaporator Temp Sensor (ETS1)
Cause:
Evaporator Temperature Sensor (ETS1) out of range.
Component
Evaporator Temperature Sensor (ETS1)
Troubleshooting
Test the ETS1. See Sensor Checkout Procedure
.
Corrective Action
Replace Evaporator Temperature Sensor (ETS1) if defective.
AL70 Secondary Supply Sensor (SRS)
Cause:
Secondary Supply Sensor (SRS) is out of range.
Component
Secondary Supply Sensor (SRS)
Troubleshooting
Perform pre-trip P5.
Corrective Action
If P5 passes, no further action is required.
Corrective Action
If P5 fails, replace the defective sensor as determined by P5. See Temperature
AL71 Secondary Return Sensor (RRS)
Cause:
Secondary Return Sensor (RRS) is out of range.
Component
Secondary Return Sensor (RRS)
Table 4–5 Alarm Indications and Descriptions
Содержание PrimeLINE 69NT40-561-200
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Страница 183: ...8 1 T 362 SECTION 8 ELECTRICAL WIRING SCHEMATIC AND DIAGRAMS Figure 8 1 LEGEND Standard Unit Configuration ...
Страница 184: ...T 362 8 2 ELECTRICAL WIRING SCHEMATIC AND DIAGRAMS Figure 8 2 Schematic Diagram ...
Страница 185: ...8 3 T 362 ELECTRICAL WIRING SCHEMATIC AND DIAGRAMS Figure 8 3 Unit Wiring Diagram Sheet 1 of 2 ...
Страница 186: ...T 362 8 4 ELECTRICAL WIRING SCHEMATIC AND DIAGRAMS Figure 8 4 Unit Wiring Diagram Sheet 2 of 2 ...
Страница 187: ...8 5 T 362 ELECTRICAL WIRING SCHEMATIC AND DIAGRAMS Figure 8 5 Legend Unit With Auto Transformer ...
Страница 188: ...T 362 8 6 ELECTRICAL WIRING SCHEMATIC AND DIAGRAMS Figure 8 6 Schematic Diagram Unit With Auto Transformer ...