the Carrier 4662 maintains the high-evaporation performance required for consistent humidity control while preventing the distribution of "white dust" throughout the building’s ductwork and living spaces

including internal side-mount applications

this unit is engineered for 120V AC primary input only

specifically the PUZ-A12NKA7

Built with a 1/4" NPT connection and an acid-resistant stainless steel (AISI 316L) housing

Siemens Building Technology QPA2060D Sensor mario the Carrier 4662 maintains theThe Siemens QPA2060D is a dual function room air quality sensor engineered for precise demand controlled ventilation (DCV) in commercial HAVC systems. Utilizing infrared absorption technology (NDIR) for CO2 monitoring, this unit delivers a stable 0 10Vdc output signal across a detection range of 0 2000 PPM. The integrated temperature sensing capabilities allow for simultaneous climate monitoring, reducing the need for multiple wall mounted devices.