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As a veteran-preferred HVAC contactor auxiliary switch
the D-48 remains the industry standard for high-acid cleanup in legacy systems
Industrial Durability: Built by Zettler Controls (XMC0 series) to withstand the extreme temperature fluctuations found in outdoor condenser sections
As an ASME-certified pressure valve
Using it with third-party controllers may result in inaccurate scaling or hardware errors
Automation Components Inc (ACI) A/CP-O-EH Thermistor As a veteran-preferred HVAC contactorThe ACI A CP O EH is a precision 10K Type II thermistor designed specifically for outside air temperature monitoring in commercial building automation systems. This sensor features a 10K Ohm resistance at 77F (25C), providing accurate feedback for economizer control and HVAC sequencing. Built with a rugged European style enclosure, the unit utilizes a gasketed cover and a watertight NEMA 4X rated fitting to prevent moisture ingress and internal