In last month’s column [“Automatic Pumpdown Systems,” Nov. 5], we talked in general about the automatic pumpdown cycle and why it is the only sure remedy for refrigerant migration to a compressor ...

Mercedes-Benz said on Wednesday that it has partnered with Google to develop branded navigation for its new MB.OS operating system, as carmakers seek more control over technology in their vehicles.

Remember that automatic control systems are automatic in operation, but not self-repairing. Unless a building has a service contract with a reputable controls contractor to inspect and calibrate the ...