Carrier HH57ZC003 Enthalpy Switch 322838-752 Versatile Power: Designed to handle

Versatile Power: Designed to handle 1HP applications across various voltage configurations (120V/240V)

Can I use this valve for systems over 100

Adjustment is typically performed via the central screw

or a collapse in the existing tubing

which are essential when purging large volumes of air from system mains during the initial heating cycle

Carrier HH57ZC003 Enthalpy Switch 322838-752 Versatile Power: Designed to handleThe Carrier HH57ZC003 Enthalpy Switch is a critical component for optimizing economizer control systems and enhancing energy management in commercial HVACR applications. This genuine OEM replacement part measures both ambient temperature and relative humidity to calculate air enthalpy, providing precise relay output for damper modulation. By evaluating real time atmospheric conditions rather than simple dry bulb temperature, the HH57ZC003 determines