Honeywell C7400S-1000/U "S" Bus Enthalpy Sensor

Old Number C7400S-1000

For use with W7220 Control Module

For outside, supply, or return air

Unit mounted - Outputs a digital communicating signal on a two wire Sylkbus communications link, reporting the temperature

and humidity separately to the controller - The controller determines the enthalpy (total heat), enabling economizer modes of

operation when outside air enthalpy is suitable for free cooling - Enthalpy sensors are compatible with Honeywell economizer systems

When used with an economizer, the enthalpy boundary curve is programmed via the controller. When the temperature and humidity

are determined to be suitable based on the relationship to the boundary, the controller allows outside air for economizing

Ambient temperature operating range from -40 to 150 degrees - Dual enthalpy sensors in outside air and return switches

the controllers to economizer mode of operation anytime the outside enthalpy is less than the return air enthalpy