AS-3 Universal Autosync


The AS-3 sequencer is designed to work with any three rotary or reciprocating compressors with powered pressure switches currently controlling the starter coils. When properly installed, the AS-3 will operate three compressors in manual control and provide efficient operation and lead/lag cycling of all three compressors.   The lead/lag cycle is by manual selection only.


The AS-3 is supplied with a terminal block for connection between the three compressor pressure switches and the compressors’ starter coils.  110v is required to operate the internal relay, automatic timer, and the pressure switch and starter coil.  The starters must have 110v starter coils.  Enclosure size is 11” x 7” x 6”, NEMA 12.


Download Installation Instructions

AS-3 Installation Manual (pdf)