Satchwell MMC Direct Digital Controller Specification and Commissioning Guide

This document is a product specification and wiring/commissioning guide for the Satchwell MMC series of Direct Digital Controllers, which feature built-in real-time clocks and 7-day time schedules for HVAC applications. It details the controllers' stand-alone programming, universal control modes (temperature, compensation, humidity), serial networking capabilities, and specific technical specifications for models 2451, 2452, and 2453.