Appendix A: Glossary
116
Phason
time-based
duty cycle
A time-based duty cycle is a method of controlling elements using
on durations
and
off durations
between certain hours of the day. Time-based duty cycles are
often used to control feed augers.
For more information, read
Programming time-based duty cycles
timed event
A timed event is a method of controlling elements using
on times
and
off times
.
Timed events are often used to control equipment such as lights that need to be
switched on or off during certain times of the day.
For more information, read
tunnel mode
set point
When the zone temperature is at or above the
tunnel mode set point
, cooling
elements configured for tunnel mode (
Tunnel turn off
set to
yes
) react as follows.
Actuators move to position zero (close the inlet), curtains close, cool relays and
temperature-based duty cycles switch off, and variable stages go to 0%.
For more information, read
Programming the tunnel mode set point
Variable DC
Expansion Kit
The Variable DC Expansion Kit allows you to connect equipment that requires a
0 to 10 V input, such as variable frequency drives.
For more information, read
variable stage
set point
The variable stage
set point
is the temperature at which a variable heating stage is
at its
minimum output
.
See also
idle at
zone
A zone defines an area set off as distinct from surrounding or adjoining parts.
Zones might or might not be separated by walls. For example, a large room could
be divided into two zones to provide better control response.
For more information, read
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