©2008 Ingersoll Rand Company Page 28
broken. The alarm could be caused by a loose
connection at XO5. Also, check for a damaged
sensor and broken or damaged wire.
(10)
P1 Sensor Calibration Failure [Std] – A
sensor calibration has been attempted with P1
the discharge pressure sensor and the
measured value is outside of the +/- 10% full-
scale value.
(11) P2 Sensor Calibration Failure [Enh] --
A sensor calibration has been attempted with P2
Sump pressure sensor and the measured value
is outside of the +/- 10% full-scale value.
(12) High Package Discharge Pressure
[Std] The pressure sensor at the package
discharge (P1) is reading a pressure that is
1.5bar (22psi) above the controllers unloaded
pressure set point.
(13) High A/E Discharge Temp. [Std] – The
airend discharge temperature sensor is reading
an airend discharge temperature that exceeds
109°C (228°F). There can several reasons for
this alarm and a partial list includes high ambient
temperature, dirty coolers, cooling airflow
restrictions, low coolant level, and faulty
thermostat control valve.
(20)
Main Motor Over Temp. [Enh] – This
alarm indicates that the PTC sensor embedded
in the motor has tripped. The main cause of this
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