Mars Fan Relay Wiring Diagram. Mars 90293 switching relay. Test and replace the fan limit switch on a furnace hvac how to.
Mars fan control centers provides convenient low voltage control of one and two speed fan motors and auxiliary circuits in heating cooling or heating cooling applications reliable compact unit consisting of a 24 volt control transformer and a plug in switching relay mounted on a 4 square. A wiring diagram usually gives instruction approximately the relative outlook and contract of. These two motors are universal reversible motors.
Mars relays potential relays for submersible pump applications the mars 550 and 551 relays were specifically developed for submersible pump and other motor starting applications in high moisture environments.
90380 relay wiring diagram. Collection of fan control center wiring diagram. Wiring diagram a. Fan control center relay transformer transformer contact ratings model mars primary secondary 120 vac amps 240 vac amps number number voltage hz connections voltage va connections relay full load locked rotor full load locked rotor 90 112 240 0 20 60 color coded 24v 40 terminal board dpdt 38 828 69 4 4.