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Theta II Optimiser ES4 Installation and Commissioning Guide

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This document provides wiring, installation, and commissioning instructions for the Theta II Optimiser ES4, an optimum start controller that monitors indoor and outdoor temperatures to delay or advance heating plant start-up based on pre-occupancy conditions. It details input/output specifications, control settings, clock programming, sensor types, and safety precautions for 230Vac mains-powered operation.

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