PEC Plus user manual Appendix A: Glossary
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group set point
The group set point is the desired temperature for the zone.
For more information, read Programming the group set point on page 42.
growth curve
A growth curve is an extension of the group set point concept. The growth curve
automatically adjusts the temperature set points over time to control the
temperature in a room or zone. It is called a ‘growth’ curve because it adjusts the
set points as the animals ‘grow’.
For more information, read
Programming the growth curve on page 43.
hysteresis
Hysteresis is the number of degrees above the set point that a heating stage or
relay switches off, and the number of degrees below the set point that a cooling
stage or relay switches off.
For example, a household thermostat might switch on a furnace at 68 °F when
the house is cooling down, but switch it off at 72 °F when the house is warming
up. The difference between these two values is the hysteresis.
For more information, read Configuring hysteresis on page 32.
idle at
The temperature at which a variable cooling stage is at its minimum speed. Also
called the temperature set point.
For more information, read Programming variable stages on page 46.
idle speed
Idle speed is the percentage of full speed a variable stage fan is at when the
temperature is between the “off at” and set point temperatures.
For more information, read Programming variable stages on page 46.
inlet actuator
See actuator.
inlets
Inlets are shutter-like devices mounted on a wall or ceiling that control airflow in
a building.
minimum
duration
Minimum duration is the minimum amount of time and alarm condition must be
present before the PEC Plus signals an alarm. The minimum duration, one
minute, prevents alarms from activating when the temperature rises or drops for
just a few seconds.
For more information, read
Programming alarm settings on page 58.
minimum idle
See idle speed.
minimum
position
Minimum position is the percentage an actuator will be open when the
temperature is at the minimum (stage 0) set point.
For more information, read Programming actuators on page 49.
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