A company backed by Permira funds signed a definitive agreement to acquire Atlanta-based DiversiTech, a manufacturer and supplier of HVACR aftermarket components, from an affiliate of The Jordan Company. The senior management team will remain significant owners.

Keihin IPT Mfg, LLC completed its acquisition of Keihin Aircon North America, Inc. from Keihin Corporation and others in April 2017, after agreeing the deal on February 21, 2017.

HVAC manufacturer The Whalen Company will rent additional space in the former Black & Decker building in Easton, Maryland, to develop and manufacture a new heat pump product line. It needs about 50,000 more square feet of manufacturing space.

BITZER, the refrigeration compressor maker, announced the acquisition of ElectraTherm, a Reno, Nevada company making Organic Rankine Cycle waste heat to power generators. The deal gives BITZER a US subsidiary entry into the waste heat to power market.

Sparta, Wisconsin-based Multistack LLC has acquired Germantown, Wisconsin-based Desert Aire Corp., a maker of commercial and industrial humidity and climate control systems. Desert Aire will operate as a wholly owned subsidiary.

EnviroSep, a maker of modular chiller, boiler and pump packages, is expanding its existing Georgetown County operations with at least a $5.2 million investment expected to create 100 new jobs over five years.

Lennox is undergoing a multimillion-dollar expansion at its Carrollton, Texas facility, adding a new testing area to its research and development building. The up to $40 million investment could create up to 50 new jobs.