|The IQ422 intelligent controllers are designed for universal use in building control systems. Full compatibility with other Trend IQ controllers enables the IQ422 to integrate the local environmental needs with the bulk air conditioning system in order to optimise both comfort and running costs. The controllers have 6 universal inputs and 6 analogue voltage outputs. IQ422 controllers use Ethernet and TCP/IP networking technologies with embedded XML. Trend current loop Lan, and BACnet over IP communications are available as options.