Course: REEC 220 Solar Thermal Systems

Unit 4 Overview

Unit 4 Overview

The most important part of the system is correctly sizing and selecting the best system for the location.  Once we know the usage and the location, now is the time to design the integration of the solar thermal system into the existing domestic hot water system.

One way to achieve this is through a three valve bypass system that preheats the water going in to a hot water tank.
Important Terms | Definition
Three Way Valve System | Also known as a three way valve bypass.  A way to isolate components in a solar thermal system.
Mixing Valve | A valve that will mix cold and hot water to give a less hot output.  It cannot be used as a means to prevent burns in a domestic hot water system.   They are designed for use in hydronic heating systems.
Anti-scalding Valve | Also known as Thermostatic Mixing Valve.   A valve that is specifically designed to limit the temperature of hot water.  To be a true anti scald valve the hot water flow must shut off entirely if no flow of cold water to it.