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The Bunn 22300
What causes a mechanical unloader to fail
making it a reliable drop-in replacement for the E-series controls
This means when viewed from the lead end (the side where wires exit)
Belimo NKQB24-SR Actuator Refrigerant The Bunn 22300The Belimo NKQB24 SR is a high speed, electronic fail safe actuator engineered for precise control in HVAC systems requiring rapid response times. Operating on a 24Vac dc power supply, this unit delivers 54 in lb of torque and features a programmable 2 10Vdc proportional control signal. Designed for demanding applications, the NKQB24 SR provides a critical 4 second run time and a dedicated fail safe position via integrated capacitors, ensuring dampers
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