F - Mech Eng,Light,Heat,Weapons – 24 – F
Patent
F - Mech Eng,Light,Heat,Weapons
24
F
F24F 11/00 (2006.01) G05D 23/19 (2006.01)
Patent
CA 2064122
APPARATUS FOR CONTROLLING UNIT VENTILATORS Abstract of the Disclosure A controller for unit ventilators which include processing means having associated memory that enables control schemes to be used. The controller is modular and compact in its construction, is easily installed in existing unit ventilators and provides not only the controlled pneumatic pressure in the output lines for the controller, but also provides electrical control signals for controlling the operation of the fan. The controller is adapted to control unit ventilators having auxiliary radiation and is also adapted to control ASHRAE cycle 3 type installations.
Landis & Staefa Inc.
Macrae & Co.
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