is there some companies that sell energy saving devices for chillers and HVAC equipment?

Question

There are something like circuit controllers which make sure energy is not being wasted or something like that

Answer 1

Check with your local mechanical contractor. There are many ways to conserve with larger chilled water (hydronic) HVAC systems but most are out of the range of a do-it -yourself category. There are companies that will analyze your system and install control equipment on a contract basis and charge you a percentage of your energy savings, it's almost a free type deal. Without seeing or knowing the extent of the system you have it's difficult to give you a more in depth answer. Hope this will help.

Answer 2

You can purchase temperature controllers (programmable thermostats) which will the cool only at the times you specify. Also the power company can install a device which cycles the unit off at peak usage during the summer. Otherwise, you'll just have to invest in a more efficient machine. Older units are just less efficient. You'll get your money back in energy savings if you upgrade.

Answer 3

The new technology for heating/cooling is Geothermal. Your location is the determining factor. Some areas are viable candidates for geothermal. Basically, you use the earth's core temperature to regulate water temp in bore holes that heat/cool your HVAC unit. This replaces the need for air cooled units. This works in residential and commercial. Tennessee is incorportating this type of system more and more because the land is suitable.

Answer 4

Check with your local mechanical supply store. I think there are regulators that can save energy on induction motors