Halton M.A.R.V.E.L. Operator's Manual page 4

MC8 Controller: The heart of the system, the controller features 22 inputs/outputs and is designed
to collect real time information and to implement various automation control algorithms. The MC8
Controller responds to the infrared sensor(s) and duct temperature sensor to measure changes in
cooking status.
Example:
Differential Pressure Transducer: Used in conjunction with the value from the temperature sensor and
IR Index to measure and control the airfl ow thru each hood. In addition, for multiple units with a
common exhaust fan, there is an additional differential pressure transducer mounted on the common
exhaust duct.
Temperature Sensor: Located in the hood collar, the temperature sensor is used in conjunction with
the pressure transducer value and IR Index to control the airfl ow.
M.A.R.V.E.L. Installation Operation & Maintenance Manual
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