MARS 19163 Potential Relay 320788-703 4A full-load burner and circulator

4A full-load burner and circulator control

Advanced Diagnostics: Features integrated fault-finding logic to assist in rapid troubleshooting of system errors

Common Service Questions: Is the 19F21 compatible with older CBX series air handlers

Operating on a dual-voltage configuration of 120/240V

or frost formation on the expansion valve inlet while the system is undercharged or showing normal head pressure

MARS 19163 Potential Relay 320788-703 4A full-load burner and circulatorEnhance your diagnostic and repair efficiency with the MARS 19163 Potential Relay, a field proven motor starting relay designed for definitive compressor start assistance in commercial and residential HVAC R systems. This 163 potential relay features a 170V continuous coil voltage, engineered specifically to drop out start capacitors once the motor reaches optimal back EMF. With a 35 amp contact rating and capability up to 480 VAC, this non positional