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making it compatible with high-pressure refrigerants like R-22
it eliminates the risk of field-wiring errors and high-resistance connections that lead to nuisance lockouts
reducing high-side pressure to facilitate optimal heat absorption within the evaporator coil
as the "/U" suffix simply denotes the retail/universal packaging variant
Supco SMR410 Pressure Switch 320788-702 making it compatible with high-pressureThe Supco SMR410 High Pressure Switch is a mission critical safety component engineered for HVACR systems requiring a hard cut out pressure at 410 PSI. This manual reset pressure switch provides robust overpressure protection for compressors and condensers by opening the circuit on pressure rise. As a veteran grade SPST high pressure switch, it is the direct replacement for P100DA 1, 43313, and 5709, ensuring seamless integration for field service
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