What is the proper flow direction

As a genuine Daikin-McQuay service part

or inconsistent fan speeds that lead to system high-limit trips

2-pole design supports compressor and motor switching

Technicians can rely on its IP54 rated housing and manual override button for streamlined commissioning and system testing

Carrier HK02ZB160 Pressure Switch 320074-702 What is the proper flowThe Carrier HK02ZB160 Fan Pressure Switch is a critical OEM replacement part engineered for precise airflow monitoring and fan cycling control. Designed for high performance HVAC system maintenance, this switch operates with a specific set point of 225 PSI to close and 160 PSI to open, ensuring the fan activates and deactivates based on real time refrigerant or air pressure requirements. This 255 160# pressure switch prevents equipment damage by