depot pull
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This SPDT limit switch operates on an automatic reset logic
The standard RSD is a 24-volt unit
Operating on a 24V solenoid coil
this device features a reliable 1/2-inch NPT connection for seamless integration into the boiler shell or external manifold piping
blower operation
Carrier HK02ZB054 Pressure Switch 320788-704 This SPDT limit switch operatesFor mid to large scale commercial and residential HVAC units, the Carrier HK02ZB054 Pressure Switch is a critical safety component designed to maintain peak system performance. This 78 54 PSI low pressure switch effectively prevents compressor damage by interrupting the control circuit if refrigerant levels drop below safe operating thresholds. Operating on a 24V signal, this OEM Carrier replacement part is calibrated to open at 78 PSI and close at 54