SGNe Troubleshooting Guide Page 4
Revision 1.0; Davidson, May 2009. ©Ingersoll Rand Proprietary Information
SGNe
Troubleshooting Guide
Danger
Please utilize extreme caution when performing work within the compressor cabinet.
When opening the cabinet: be certain to wear appropriate PPE (Personal Protective Equipment),
follow lock out-tag out procedures, and ensure all safety procedures are followed
.
Current Status Messages
While the compressor has power (started or stopped), a current status screen will be
displayed by the controller. This current status screen will be considered the “normal”
display that the
controller shows.
% Energy Savings
This displays the percent of energy saved by a Nirvana compressor, as compared to a
comparable fixed speed compressor that is operating in one of three modes.
% Capacity
Displays the compressor’s current percent capacity. This value will be determined by
the actual speed vs. the maximum speed.
Package kW
Displays the compressor’s kilowatt usage. This value includes the blower’s kW usage.
Package Discharge Temp
Displays the reading from temperature sensor 4ATT. There is no logic associated with
the package discharge temperature.
Airend Discharge Temp
Displaysthereadingfromtemperaturesensor2ATT
Injected Coolant Temp
Displays the reading from temperature sensor 2CTT.
Sump Pressure
Displays the reading from pressure sensor 3APT.
Separator Pressure Drop
Displays the value of the pressure drop across the separator. This value is determined
by subtracting the dry side sump pressure from the wet side sump pressure.
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