Terminal unit with active diffuser

Details Terminal unit with active diffuser Terminal unit with active diffuser

1998-03-09

2000-06-27

Tapolcai, William E.

Automatic temperature and humidity regulation

Mixing fluid of dissimilar temperature

Plenum type

236 493, 454269, 454300, G05D 2313

Patent

active

06079626&

ABSTRACT:
In building environmental control, primary HVAC services are distributed to multiple terminal units. An active diffuser terminal unit has a variable speed fan to controllably draw room air into the unit for reheating the air; and, conversely, to force conditioned air down into the space for cooling by reversing the direction of the fan motor. Variation of the fan speed serves to modulate the airflow direction mix through a combination of a vertical port and a horizontal port. This closed system avoids filtering plenum air, and reduces cost by supporting both heating and cooling services with a single fan.

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