Master Bilt Master Controller 2.0 - Master Controller; Description

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MASTER CONTROLLER
Description
The Master Controller 2.0 is a custom-designed microprocessor-based electronic controller for Master-Bilt
refrigeration products to control an electric expansion valve in response to evaporator superheat and return air
temperature. The hardware and input/output descriptions and connections of a Master Controller 2.0 are
shown below.
Figure 1 . Master Controller 2.0 Board Layout.