C&K carries a full line of DIP and Tact switches for use on HVAC control boards used in furnaces, air handlers, and packaged equipment. For programming keys, the PTS125 or PTS645 Tact switches can be used. Both are cost effective options with various actuator heights and long cycle life. The PTS645 offers a smaller footprint at 6 x 6 mm. For standard DIP switches, C&K offers the BD standard profile and the SDA low profile series. If coded rotary DIPs are used, the CRD is an ideal choice offering up to 16 positions, long cycle life, and various coding options.