SGNe Troubleshooting Guide Page 15
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
.
Input Rectifier Temperature
This value is read from the variable speed drive controller and displayed.
VSD Ambient Temperature
This value is read from the variable speed drive controller and displayed.
Blower Percentage
This value is the percentage of the 4 – 20 mA output the Intellisys is sending to the
variable speed blower.
For example, 0% would be 4mA, 50% would be 12mA, and 100% would be 20mA.
Target Temperature
This value is the minimum target temperature the variable speed blower is trying to
maintain.
Calculated Target Temperature
This value is the calculated target temperature without any adjustment for things
such
as injected coolant temperature.
This value may be the same as the target temperature.
Anti-condensation SV Condition
This display will show the current state of the anti-condensation solenoid valve.
If it is
energized it will be On, de-energized will be Off.
Remote Pressure
If the compressor has the remote pressure sensor option, this value is read from the
variable speed drive
controller and displayed.
If the compressor doesn’t have the remote pressure sensor
option, Not Installed
will be displayed.
Remote Max Speed
Used to display the remote max speed after the pressure differential is calculated.
Remote Max Pressure
Used to display the remote max pressure after the pressure differential is calculated.
This value is always in Psi. The remote max speed is based on this number.
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