10-2014 gForce User Manual ● 79
per second. It is recommended to keep the rate of change low to enhance system
stability.
Ramp Pause Delay: When the rack temperature reaches rack temperature setpoint,
the fan speed will stay at where it is for this amount of time. The default delay is 2
minutes and ranges from 1 to 5 minutes.
To go to the next screen, move the cursor to the title block by pressing the ENTER key
stepping through all the inputs. To return to the main Menu press the ESC key or to
view the following screen press the DOWN key.
The Compressor Settings screen will be displayed (values are for reference only):
Type: Selectable compressor types are Variable & Fixed Speed for dual circuit units or
Sngl Variable for single circuit unit. The other types (Sngl Primary, Singl Pri w/UnLdr,
Dual Primary, Dual Pri w/UnLdr) are not applicable for gForce Ultra. See section 9.2 for
control logic details.
Min Run Time: The minimum run time of the variable speed compressor for stabilizing
purpose. The variable speed compressor needs to run for at least this duration before
turning off, unless there are alarms. Selectable from 1 to 10 minutes, defaulted at 6
minutes.
Control: gForce Ultra allows the cooling function to be controlled by either Return
Temperature or Supply Temperature. Default setting is Return Temp