The ServiceMate diagnostic module aids in trouble-shooting by reducing diagnostic time and wire tracing. Providing a single connection point for all control-circuit wiring, the module has LED indicators that show the status of each control-circuit component, compressor and solenoid as well as the input control voltage. Officials say the ServiceMate will become a standard feature on many brands of products, including single- and dual-compressor vertical condensing units, and 3- to 40-horsepower semihermetic horizontal condensing units.

Heatcraft Refrigeration Products LLC, 2175 W. Park Place Blvd., Stone Mountain, GA 30087;