The new Daikin McQuay SmartSource™ Water Source Heat Pump (WSHP) product line will be previewed by McQuay International. The SmartSource line has some of the highest efficiencies, lowest sound levels, and expanded application options for the commercial market, says the company. The line also includes the industry’s first variable-speed inverter WSHP, boasting energy efficiency ratings unreachable by other technologies. The new line comes in a range of sizes and a number of options that include smart dehumidification, waterside economizers, and internal electric heat.