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53" WC to meet specific OEM air-proving requirements
OEM Compatibility: Specifically designed as a York S1-024-35799-000 replacement to ensure physical alignment and electrical timing with factory contactors
verifying correct drafting before the ignition sequence initiates
Industrial Durability: Solid construction resists warping and surface wear
The MARS 19166 Potential Relay is a specialized HVAC compressor start relay designed for demanding capacitor-start induction-run (CSIR) and capacitor-start capacitor-run (CSCR) motor applications
Zonefirst SPS Pressure Switch 30067439-890 53" WC to meet specificThe Zonefirst SPS is a ruggedized dual static pressure switch designed for contractors who need precise modulating control over HVAC bypass dampers. Engineered with two fixed factory settings of 0. 2" WC and 0. 3" WC, this unit integrates seamlessly with RDM and ZDM dampers to manage bypass air without the need for complex field calibration. Its SPST snap acting electronic switches ensure a definitive response: the damper powers open above 0. 3" WC