Bringing Solar Energy to Colorado
 

On-Line Training

Interfaces and Advanced Control Systems ©

Introduction

The material presented in Differential Controls For Domestic Hot Water Systems should allow the reader to confidently install and troubleshoot DHW systems. This section should equip the controls installer­designer with the background to understand more complex control systems used in residential space heating systems.

When this course was taught at Red Rocks Community College in the 1980s, the section dealing with Interfaces was covered after the Advanced Controls section. With where we are today with residential heating system controls contained on a printed circuit board, it seems more logical to first look at how to interface these controls with solar systems and then look at how to expand them to include more complex features.

This section will therefore first deal with how some of the older furnace control systems looked (some are still in operation
and still need servicing) and how they were interfaced with solar space heating systems. Tahen we will look at how the furnaces control systems have changed and how to design a typical control strategy for adding solar space heating system controls.

The starting point will be the truth table. A truth table can easily be generated that will define the system control strategies and will show all possible combinations of system operation, given the various combinations of sensor inputs. Once the truth table is established, the relay control logic can then be designed.

Shown below is an outline of the topics covered in this on-line training section.

Module #1, The Truth Table
Older Forced Air Furnaces
Older Forced Air Furnaces Integrated With A Solar Heating System
Includes Newer Furnaces and Review Questions

Module #2, A Boiler and Solar for Radiant Floor Heating 
Review Questions

Module #3, A Furnace and Solar Air Heating System
Review Questions

Module #4, Ladder Diagrams
Review Questions

Module #5, Final Points

Shown below is an outline of the topics covered in this on-line training session. If you have paid for this session and have received your On-Line Training User Name and Password, you may click HERE (you will be asked to first enter your On-Line Training User Name and Password, then your Members Only User Name and Password) and get started or continue with your studies. If you have not yet received a Members Only User Name and Password, please contact Jon at Jon.Klima@gmail.com.

Send any course material questions to Jon at Jon.Klima@gmail.com

Contact CoSEIA at any of the addresses below.

Main office -
8745 W. 14th Ave., Lakewood, CO 80215
Denver metro phone: 303 333-7342
Non-metro phone: 1 866 633-9764
E-mail: info@coseia.org		 CoSEIA Records -
PO Box 77, Como, CO 80432
Phone: 719 836-4804
E-mail: coseiarecords@hughes.net

This page last updated on 10-22-07