[BLDG-SIM] THROTTLING RANGE

[John Aulbach]

To quote Shakespeare (and the DOE-2.1E mnual)

"Throttling Range specifies the number of degrees that
room temperature must change to go from full heating
to zero heating and/or full cooling to zero cooling."

The zone thermostat setpoint is assumed to be at the
middle of the throttling range. (DOE-2.2 manual add)

In other words, if you set your cooling t'stat at 72°F
and set a throttling range of 3 degrees, you would be
at full cooling at 73.5°F space temp and full cooling
off at 70.5°F (as it is explained).

I believe this has to do with the "slop" in the T'stat
(which DDC controls virtually eliminates).

But it also comes into play when you swing from
cooling to heating and vice versa (such as a VAV
system).


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