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This insulated base door serves as a direct drop-in for worn or degraded factory panels
protecting the expansion valve and compressor from debris
Broad Compatibility: Specifically calibrated for Weil-McLain GV Series 4 units
making it an essential component for technicians demanding precision in bi-directional refrigerant flow applications
including 2-10Vdc
Carrier HK02ZA452 Pressure Switch 321702-401 This insulated base door servesThe Carrier HK02ZA452 Pressure Switch is a critical safety component designed for precise refrigerant pressure monitoring within commercial and residential HVAC systems. Engineered as a high limit safety cut out, this OEM Carrier replacement part is essential for protecting the compressor and refrigeration circuit from excessive pressure conditions. With a fixed cut out setting of 426 PSI and a cut in reset at 320 PSI, it ensures the system operates
