Method and apparatus for efficiently coordinating data center cooling units

A computer program product comprising a non-transitory computer-readable medium storing a plurality of instructions that when executed cause a processor to perform a method of controlling an environmental maintenance system that includes a plurality of environmental maintenance modules currently running and a plurality of sensors that measure a value of a physical condition of an environment, the method comprising:

• for at least one of the plurality of the modules currently running:
• estimating sensor values of the sensors resulting if an operation level of the module were decreased by at least a predetermined amount;
• determining a first set of one or more of the plurality of the modules currently running that have none of the estimated sensor values outside of a first range;
• and
• decreasing an operation level of at least one module of the first set in response to the determination that one or more of the plurality of the modules currently running have none of the estimated sensor values outside of the first range.

An environmental maintenance system comprising:

• a plurality of environmental maintenance modules;
• a supervisory controller communicatively linked to the environmental maintenance modules;
• a plurality of sensors that measure a value of a physical condition of an environment and that are communicatively linked with the supervisory controller;
• a memory comprising instructions which when executed cause the supervisory controller to:
• determine which environmental maintenance modules are currently running;
• for at least one of the plurality of the modules currently running:
• estimate sensor values of the sensors resulting if an operation level of the module were decreased by at least a predetermined amount;
• determine a first set of one or more of the plurality of the modules currently running that have none of the estimated sensor values outside of a first range;
• and
• decrease an operation level of at least one module of the first set in response to the determination that one or more of the plurality of the modules currently running have none of the estimated sensor values outside of the first range.