Intellidyne HVAC Optimization Controls
A heating system should provide acceptable comfort at the lowest anticipated outdoor temperature. Most commercial boilers have a heating capacity 1.5 to 2 times larger than that needed to maintain the facility’s temperature on extreme days. Due to this over-sizing, the burner will cycle on and off continuously. Even on boilers with proportional controls, once the heating load goes below the burner’s low-fire point, the burner will cycle on and off to prevent overheating of the system water. Intellidyne controllers reduce fuel consumption, wear on parts, flue emissions, and electrical usage, when installed on any new or existing gas or oil burner.
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IntelliCon®-CHW saves energy by adjusting the burner run pattern to match the system’s “heat load.” Its action is similar to the industry-accepted method of “outdoor-air temperature reset control,” but does not require an outdoor air temperature sensor or the need to profile the building in order to adjust the reset” controller properly.
IntelliCon-CHW determines the “heat load” by using an easily installed strap-on temperature sensor that monitors the boiler’s out-flow water temperature and the rate that this temperature is changing. Using our patented technology, IntelliCon-CHW increases “system efficiency” thus the heating system uses less fuel to generate the same amount of heat. This is done by dynamically changing the aquastat’s effective dead-band based upon the measured “heating load.” This causes the average water temperature to be varied (depending upon the measured load), and is accomplished by extending the burner’s “off-time.”