This month’s product focus highlights chillers: a centrifugal chiller with variable-speed drive and smart controls; a line of channel plate heat exchangers for water chillers and heat pumps; a model that combines the strengths of variable refrigerant flow and traditional chiller systems; a water-cooled centrifugal chiller for space-limited commercial building retrofits; and a portable chiller that cools more than 2,100 sq. ft.