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The degree of effect the air movement has on the Actual Temperature, when figuring the Working Temperature,
is controlled by the "Temp Control" setting under the Temperature Control Setting menus. If "Temp Control" is
set to "Actual", air movement has no effect on the Working Temperature used to control the devices. The devices
will operate based on the Actual Temperature. If "Temp Control" is set to “
EET”
, the air movement will have the
highest effect on the Working Temperature and the devices will operate based on the lower Effective Temperature.
If "Temp Control" is set somewhere between "Actual" and "
EET
", the Working Temperature of the devices will be a
percentage of the Effective and Actual Temperature.
The difference between the Actual temperature and the Effective Temperature will never be greater than 6 degrees
Fahrenheit. This prevents a building from getting too hot due to high wind speeds.
Humidity also plays a part in determining the Effective Temperature. The higher the Actual Temperature
and/or humidity, the higher the air movement has to be to get the same cooling effect as lower temperature and/or
humidity readings.
Essential Background Information - continued
Power
Power ventilation uses sidewall fans in conjunction with curtains or other inlets for cooling.
This will increase the air
exchange and bring more fresh outside air into the building.
The controller menus combine natural and power ventilation into one mode called “natural” to
differentiate this mode from tunnel mode.
Ventilation Modes
You’ll need to be familiar with several ventilation terms used in this manual.
Natural
Natural ventilation is simply opening a building to allow outside breezes to flow through. This is usually accomplished
by lowering curtains. Natural ventilation is ideal when the temperature outside is close to the temperature the
animals need. The air exchange rate depends greatly on outside winds.
(Ventilation Modes continue on the next page.)
