the hyphenation is simply a variation in manufacturer labeling

Legacy Compatibility: Optimized for Amana PTAC R-22 models requiring specialized housing

which can damage the motor

2A breaker to trip frequently

Cleveland Controls DDP-109-204 Switch Els PW 17895 the hyphenation is simply aThe Cleveland Controls DDP 109 204 is a robust dual pressure sensing switch designed for critical HVAC and energy management applications. This general purpose proving switch features two independently adjustable SPDT snap acting switches mounted on a robust common foot bracket, allowing technicians to establish a precise deadband for complex control circuits. With an adjustment range from 0. 05" to 2. 0" w. c., this differential pressure switch is