but includes a standard tire-grade air valve for precise field adjustments tailored to specific static system pressures

it allows technicians to isolate the outdoor unit for maintenance or compressor replacement without evacuating the entire refrigerant charge

Built for long-term reliability in high-cycle environments

90" WC set point to maintain OEM safety standards and prevent "no-heat" calls caused by drifting pressure trip points

Carrier HK02ZB126 Pressure Switch Els PW 17895 but includes a standard tire-gradeThe Carrier HK02ZB126 Pressure Switch is a critical OEM safety component engineered for precision monitoring within high pressure refrigerant circuits. Designed to safeguard the compressor and overall system integrity, this switch features factory calibrated set points, closing at 257 PSI and opening at 126 PSI. As a veteran grade HVAC replacement part, it utilizes a single pole, single throw (SPST) electrical configuration to provide reliable high