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Fenwal uses color-coded leads or markings to signify temperature ratings
the AH23A020 ensures positive shut-off in demand-heavy environments like fan coils
ensuring heat dissipation in ambient temperatures up to 40°C
this single-speed motor is a primary replacement component for IEC fan coil units and air handling assemblies requiring a reliable direct drive motor configuration
Carrier HH12ZZ185 Limit Switch 321702-401 Fenwal uses color-coded leads orThe Carrier HH12ZZ185 Limit Switch (part number L185F 40) is a critical OEM HVAC replacement part designed for high limit thermal protection in furnace and air handling units. This normally closed (NC) switch functions as a primary safety mechanism, monitoring internal temperatures to prevent heat exchanger damage. It features a fixed set point that opens the electrical circuit when temperatures reach 185F and automatically resets once the system