Carrier PrimeLINE Operation And Service Manual page 85

P5-9 Primary vs. Secondary Evaporator Pressure Transducer Test
This is a Pass / Fail test of the primary Evaporator Pressure Transducer and secondary Evaporator
Pressure Transducer.
Test passes if secondary Evaporator pressure is within +/- 1.5 psi of the primary Evaporator pressure.
P5-10 Humidity Sensor Controller Configuration Verification Test
This is a Pass / Fail / Skip test of the humidity sensor configuration.
Test passes if the controller configuration has humidity sensor in.
Test fails if the controller configuration has humidity sensor out and Vout is greater than 0.20 Volts for the
humidity sensor.
Test is skipped if the controller configuration has the humidity sensor out and Vout is less than 0.20 Volts.
Test P5-9 must pass before this test is run.
P5-11 Humidity Sensor Installation Verification Test
This is a Pass / Fail test of humidity sensor installation (sensor is present).
Test passes if Vout is greater than 0.20 Volts for the humidity sensor.
Test fails if Vout is less than 0.20 Volts for the humidity sensor.
Test P5-10 must pass before this test is run.
P5-12 Humidity Sensor Range Check Test
This is a Pass / Fail test of the Humidity Sensor Range.
Test passes if Vout for the humidity sensor is between 0.33 Volts and 4 Volts.
Test fails if Vout is outside of this range.
Test P5-11 must pass before this test is run.
Refrigerant Probes, Compressor and Refrigerant Valves: The P6 tests are for Pass / Fail testing performed for
the compressor, EEV, DUV, LIV (if equipped), ESV, and the refrigerant pressure and temperature sensors.
P6-0 Discharge Thermistor Test
If Alarm 64 is active the test fails. Otherwise, the test passes. Alarm 64 monitors the range of the
Discharge Temperature Sensor (CPDS).
P6-1 Evaporator Temperature Sensor (Suction) Test
If the Evaporator Temperature Sensor (ETS1/ETS2) is invalid, the test fails. Otherwise the test passes.
P6-2 Discharge Pressure Transducer Test
If Alarm 65 is active any time during the first 45 second period, the test fails. Otherwise, the test passes.
Alarm 65 monitors the range of the Discharge Pressure Transducer (DPT).
P6-3 Suction Pressure Transducer Test
If Alarm 66 is active the test fails. Otherwise the test passes. Alarm 66 monitors the range of the Suction
Pressure Transducer (SPT).
P6-4 Compressor Current Draw Test
Compressor current is tested before and 10 seconds after start up. If current does not increase, the test
fails. P6-7 is run at the end of P6-4. If this test fails, P6-6 is skipped.
P6-5 Compressor Leak Test
Pre-trip P6-5 ensures that the compressor holds pressure. After compressor pump up and pump down,
the compressor is turned off for 62 seconds. When suction side pressure holds (less than 8 psi rise) for
10 seconds, P6-5 passes, otherwise the Compressor Leak Test fails.
See the July 2017 issue of TechLine
occurrence.
Table 4–6 Controller Pre-Trip Test Codes (Continued)
for a procedure to assist the technician in troubleshooting a P6-5
4–45 T-362