Ventilation controller for equipment enclosure
AssigneeSchroff Technologies International, Inc.
InventorsRichard De Felice, Robert Paterson, Richard Grundy, Greg MacPherson, Henry Riddoch
Life of this patent
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Abstract
A ventilation system maintains a temperature for a computer equipment enclosure using a combination of air conditioning and outside (ambient) air exchange based on a graphical user interface (GUI) for setting a range of temperature at which the ventilation system maintains the temperature. Cooler temperatures allow ambient air exchange to keep the temperature sufficiently low, while air conditioning is invoked when exterior temperatures rise.
Claims9
In an environmentally controlled space for housing electronic equipment between temperature ranges defined by an activation threshold for enabling HVAC equipment and a satisfaction threshold for disabling HVAC equipment, a method of controlling the HVAC equipment comprising:
- receiving an engagement threshold defining engagement of environmental conditioning equipment for satisfying an environmental conditioning demand;
- determining a satisfaction threshold indicative of satisfaction of the environmental conditioning demand, further comprising
- receiving a parameter indicative of an extended range value;
- and
- computing the satisfaction threshold from a difference of the engagement threshold and the extended range value;
- energizing the environmental conditioning equipment by powering on when the temperature in the equipment space reaches the engagement threshold;
- and
- deenergizing the environmental conditioning equipment by powering off when the temperature in the enclosure reaches the satisfaction threshold, the satisfaction threshold being different than the engagement threshold for incurring a longer interval during which the environmental conditioning equipment is operating, the difference between the engagement threshold and the satisfaction threshold defining an extended range of operation through which the HVAC equipment operates subsequent to attaining the engagement threshold, the extended range defining a temperature range through which conditioning equipment remains continuously operational or idle.
Dependencies are inferred from the claim text.