Troubleshooting guide

70
Safety Failure Message
Suction Pressure SP#1 Fail - This message will appear when the suction pressure falls below the
safety setting of the Lo Suction Pressure Trip Setpoint No.1. In
addition, this message will appear when the suction pressure reading
rises above 300 PSI, indicating an open transducer or bad analog
channel.
Suction Pressure SP#2 Fail - This message will appear when the suction pressure falls below the
safety setting of the Lo Suction Pressure Trip Setpoint No.2. In
addition, this message will appear when the suction pressure reading
rises above 300 PSI, indicating an open transducer.
Discharge Pressure SP#1 Fail – This message will appear when the discharge pressure exceeds the
safety setting of the Hi Dsch Press Trip Setpoint No. 1 . In addition,
this message will appear when the discharge pressure reading falls
below 30” Hg, indicating a shorted transducer.
Discharge Pressure SP#2 Fail – This message will appear when the discharge pressure exceeds the
safety setting of the Hi Dsch Press Trip Setpoint No. 2 . In addition,
this message will appear when the discharge pressure reading falls
below 30” Hg, indicating a shorted transducer
Suction Temp Fail – This message will appear when the suction temperature falls below the
safety setting of the Low Suction Temperature Trip setpoint. In addition,
this message will appear when the suction temperature rises above 400
degrees, indicating an open RTD.
Discharge Temp Fail – This message will appear when the discharge temperature rises above
the safety setting of the High Discharge Temperature Trip setpoint. In
addition, this message will appear when the discharge temperature falls
below -30 degrees, indicating a shorted RTD.
Oil Separator Start Temp Fail – This message will appear when the Oil Separator Temp is below the
Low Oil Separator Start Temp Trip setpoint. In addition this message
will appear after the Oil Separator Temp Safety Changeover timer times
out and the Oil Separator temperature fails to rise above the Low Oil
Separator Start Temp Reset after the compressor is started.
Oil Separator Run Temp Fail – This message will appear when the Oil Separator Temp is below the
Low Oil Separator Run Temp Reset setpoint after the Oil Separator
Temp Safety Changeover timer times out.
Percent Capacity Fail – This message will appear if the percent capacity reading exceeds 300%
or goes below –15%.