HVACR Through History

The advent of HVAC started to advance with the invention of air conditioning by Willis Carrier in 1902. Before that period cooling could only be done in a moderate way with circulating fans or swamp coolers. The next big milestone in HVACR was the invention of solid-state climate control components after the 1970s. IARGLOBAL specializes in buying and selling any components, controls, thermostats that control building climate control and lighting equipment.

We are HVAC Surplus Buyers, HVAC Equipment Buyers, HVAC Liquidators, HVAC Control Buyers, and buy most surplus HVAC controls and accessories. Our inventories include manufacturers such as Belimo, Bell & Gossett, Carrier, Dwyer, Eaton, Emerson, Honeywell, Johnson Controls, Kele, Mars, Parker, Robertshaw, Schneider, Siemens, Trane, Veris, White-Rodgers, York, and many other quality brands. We purchase primarily new components, but will also purchase control panels that have been custom made but not put in service. Our inventory also includes VFD’s, relays, contactors, thermostats, sensors, control boards, BACnet controllers, Modbus controllers, fan limit controls, duct, and valve actuators. In addition to our overstock inventories at great prices, we also have lines of valves and actuated valves in unlimited quantities which include free shipping.

With increasing costs of gas and electricity and the looming global warming efficient operation of cooling and heating equipment has become economically and legislatively essential. Wiki has stated “BACnet is a communications protocol for Building Automation and Control (BAC) networks that leverage the ASHRAE, ANSI, and ISO 16484-5 standard[1] protocol.

BACnet was designed to allow communication of building automation and control systems for applications such as heating, ventilating, and air-conditioning control (HVAC), lighting control, access control, and fire detection systems and their associated equipment. The BACnet protocol provides mechanisms for computerized building automation devices to exchange information, regardless of the particular building service they perform.
If you are a contractor, distributor, or another owner of HVAC surplus controls please contact us and we will give you an immediate cash offer for your idle inventories.

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