Johnson Controls' Q2 sales rose 8%, with CEO Joakim Weidemanis attributing the growth to data-centre thermal demand. The company is launching new chiller models for the segment and entering the CDU (coolant distribution unit) market — direct-to-chip and rear-door heat-exchanger plumbing that sits between rack and chiller. JCI is also leveraging remote monitoring to grow its services business — a signal that connected service is becoming the second revenue line on every piece of HVAC kit.