17
Automatic Temperature Operation
– Automatic Temperature Control Mode is
active for the NoMAX 900
®
when the Control Mode is set to “Temp. Only”
and the rotary switch position is set to AUTO. The AUTO LED will also light.
When Automatic Temperature Control Mode is active, the control tests the
ambient temperature against the programmed OPEN TEMP and CLOSE
TEMP settings. To adjust the set points, use the front panel rotary switch
to select the parameter. Please refer to Figure 5.
5) OPEN TEMP is the set point for opening the capacitor bank based upon
measured ambient temperature. Use the Adjust switch to select the desired
value. The minimum value is 5 degrees. The maximum value is 125 degrees
(The Control prevents the OPEN TEMP setting from being closer than 5 degrees
to the CLOSE TEMP setting). The control will issue an open command to the
capacitor bank based upon the Winter/Summer schedule as follows:
Winter Schedule (defined by OPEN TEMP greater than CLOSE TEMP setting) –
When the ambient temperature rises above the OPEN TEMP setting for 5
minutes continuous, the capacitor bank will Open after the preset time delay.
Summer Schedule (defined by CLOSE TEMP greater than OPEN TEMP setting) –
When the ambient temperature drops below the OPEN TEMP setting for 5
minutes continuous, the capacitor bank will Open after the preset time delay.
6) CLOSE TEMP is the set point for closing the capacitor bank based upon measured
ambient temperature. Use the Adjust switch to select the desired value. The
minimum value is 5 degrees. The maximum value is 125 degrees (The Control
prevents the CLOSE TEMP setting from being closer than 5 degrees to the
OPEN TEMP setting). The control will issue a close command to the capacitor
bank based upon the Winter/Summer schedule as follows:
Winter Schedule (defined by OPEN TEMP greater than CLOSE TEMP setting) –
When the ambient temperature drops below the CLOSE TEMP setting for 5
minutes continuous, the capacitor bank will Close after the preset time delay.
Summer Schedule (defined by CLOSE TEMP greater than OPEN TEMP setting) –
When the ambient temperature rises above the CLOSE TEMP setting for 5
minutes continuous, the capacitor bank will Close after the preset time delay.
While in Automatic Temperature Control Mode, the control will cycle through
several different status messages. The messages include the total operations
counter, the number of 24 hour Auto operations, the present time and the
sensed temperature (Fahrenheit).
Gridco, Inc. v. Varentec, Inc. IPR2017-01135
GRIDCO 1008 - 19/22
