Satchwell SMT Digital Optimiser Technical Specification and User Guide

This document is a technical specification and user guide for the Satchwell SMT Digital Optimiser, a third-generation microprocessor-based device for energy-efficient heating and air conditioning control. It details the unit's features, including self-learning optimum start/stop, programmable occupancy periods, frost protection, auxiliary outputs, and security-coded programming, along with full construction, electrical, and installation specifications.