Systems and methods for intelligently controlling a hybrid cascade boiler system

A cascade boiler system comprising:

• a plurality of boilers, the plurality of boilers comprising a condensing boiler and a non-condensing boiler;
• a supply water temperature sensor configured to detect a temperature of water supplied from the cascade boiler system;
• a return water temperature sensor configured to detect a temperature of water returned to the cascade boiler system;
• one or more processors;
• and
• a memory in communication with the one or more processors and storing instructions that, when executed by the one or more processors, causes the one or more processors to:
• receive, from the supply water temperature sensor, supply water temperature data;
• receive, from the return water temperature sensor, return water temperature data;
• determine a current temperature differential value based at least in part on the supply water temperature data and the return water temperature data;
• determine a current load demand value based at least in part on the current temperature differential value and a set point temperature;
• retrieve, from a memory associated with the cascade boiler system, a boiler operation schedule corresponding to operation of a plurality of boilers;
• and
• instruct one or more boilers from among the plurality of boilers to transition to a heating mode for heating water in the cascade boiler system based on the boiler operation schedule, wherein instructing the one or more boilers from among the plurality of boilers to transition to a heating mode comprises:
• in response to the current load demand value being less than or equal to a first load demand threshold, output a control signal for a condensing boiler to transition to a heating mode for heating water in the boiler system;
• and
• in response to the current load demand value being greater than a second load demand threshold, output a control signal for a non-condensing boiler to transition to the heating mode for heating water in the boiler system.