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The counterclockwise (CCW) rotation and NEMA 48 frame compatibility make it a direct-fit solution
and limit controls
Precision Modulation: Eliminates hunting and short-cycling in high-capacity hydronic loops
Operating on 240V AC power
Key Benefits Forged brass construction with stainless steel internals ensures long-term durability in high-temp hydronic environments
Carrier EF23BS121 Solenoid Valve 321702-401 The counterclockwise (CCW) rotation andThe Carrier EF23BS121 Solenoid Valve is a critical component for precise refrigerant flow control in high performance HVAC systems. Engineered as a 3 8 inch SAE flare connection valve, this unit operates on a 24V solenoid coil, making it compatible with standard residential and commercial control circuits. As a veteran grade OEM liquid line solenoid, it is designed for durability in HVAC refrigeration systems, ensuring rapid response times and
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