
15
Manual Mode
The user has basic control of on/off, heating and fan speed.
Automatic Mode
The air curtain automatically selects the most appropriate air volume, air velocity,
discharge temperature and heat output to provide optimum performance, highest
efficiency and maximum comfort. The user no longer needs to continually adjust
the fan speed or heating level when the inside and outside temperatures and
weather conditions change.
The Automatic control mode uses the CHIPS control strategy (Corrective Heating
& Impulse Prediction System).
Not only do external conditions such as outside temperature, wind velocity and
wind direction change continuously throughout the day, but the indoor climate
also changes because of heat build-up, frequency of door usage etc. It follows
that an air curtain needs to react as conditions change, and automatically adjust
its setting to ensure optimum comfort and efficiency.
In
Automatic mode the CA2 air curtain utilises CHIPS technology to automatically
adjust discharge velocity, air volume, discharge temperature and heat output. Outside,
return air and discharge temperature sensors are used to determine how much
heat is r
equired and the bespoke control algorithm ‘translates’ the data into the
strength (a combination of air volume and velocity) required for optimal climate
separation and comfort. Thus the user no longer needs to continually adjust the air
curtain’s setting when the inside/outside temperatures and/or weather change.
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