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The relay is a manual reset device that requires power to be briefly interrupted at the 24V control input (Terminal 2)
This SPST (Single-Pole Single-Throw) mechanical switch is a direct replacement for standard single-gang wall switches
it is a critical component for technicians performing repairs or system calibrations
When the air pressure in the supply plenum exceeds your calibrated setpoint
Emerson Alco 057432 Power Assembly 30067439-890 The relay is a manualThe Emerson Alco 057432 is a high performance XB 1019FW551B power assembly designed for the "T" series take apart thermostatic expansion valves. This field proven refrigeration power element is engineered specifically for R12 refrigerant systems, providing the critical driving force required to actuate the TXV's internal needle and seat. With a 55 PSI MOP (Maximum Operating Pressure) charge, it protects the compressor motor from overloading during
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