What causes a 225F limit switch to fail repeatedly

Can I leave the C-083-HH in the system permanently

and necessary hardware to ensure a seamless OEM board replacement

Does this switch handle line voltage or control voltage

Carrier HK02ZB054 Pressure Switch 318423-701 What causes a 225F limitFor 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