HVAC and BEMS

A water heater that heats water before it is directly distributed for end use as required: a demand water heater.

In HVAC, individual rooms or zones in a building where temperature is controlled separately from other rooms or zones.

A unit of heat containing 100,000 Btu.

A unit of air-cooling capacity; 12,000 Btu per hour.

A display which can detect the presence and location of a touch within the display area.  The term generally refers to touch or contact to the display of the device by a finger or hand.  Touchscreens can also sense other passive objects, such as a stylus.

A device, usually electrical, electronic, electro-mechanical, electromagnetic, photonic, or photovoltaic that converts one (1) type of energy or physical attribute to another for various purposes including measurement or information transfer (for example, pressure sensors).