including B 50 and PDH Series models (PDH 100 through PDH 350)

As a heavy-duty HVAC sequencer relay

Non-Volatile Memory: Internal backup prevents the need for field reprogramming after site power loss

75 Amps at 230V

Durable Construction: Heavy-duty steel fins and a convex center hub prevent wheel flexing and premature fatigue under high-speed operation

Warrick DFL1A0K Board Freon including B 50 and PDHThe Warrick DFL1A0K is a professional grade 120V dual function control board engineered for precise liquid level management in demanding HVACR and industrial environments. This open circuit board configuration utilizes 10K Ohm sensitivity and inverse acting logic, making it a reliable solution for boiler feedwater control and low water cutoff (LWCO) applications. As a dual function level control, the Warrick DFL1A0K integrates two independent sensing