Green HVAC/R Technician Certification - Get Your …

Green HVAC/R Technician Certification

A Desktop Reference and Training Guide for Implementing Green Practices in Building Thermal Control and

Commercial/Industrial Refrigeration

Written by: Robert P. Scaringe

Third Edition January 2016

? Copyright 2016 ALL RIGHTS RESERVED Mainstream Engineering Corporation, Rockledge, Florida Except as permitted by Sections 107 and 108 of the 1976 United States Copyright Act, no part of this publication may be reproduced or distributed in any form, or by any means, or stored in any database or retrieval system, without the prior written permission of the copyright owner. Information contained in this work has been obtained by Mainstream Engineering Corporation from sources believed to be reliable. However, neither Mainstream Engineering Corporation nor its author guarantees the accuracy or completeness of any information published herein, and neither Mainstream Engineering Corporation nor its author shall be responsible for any errors, omissions, or damages arising from the use of this information. This work is published with the understanding that Mainstream Engineering Corporation and its author are supplying information but are not attempting to render engineering or other professional or technical services. If such services are required, the assistance of an appropriate professional should be sought.

Table of Contents

Table of Contents

Figures

Tables

About Mainstream Engineering

Preface

Examination Information

Definitions

Chapter 1: Benefits of Green HVAC/R Technician Certification

What is "Green HVAC/R"? Why Go "Green"? Green Certification and Green Buildings Green Building Certification Programs

Chapter 2: Energy Audits and Energy-Saving Equipment and Systems

Energy Audits Energy-Saving Equipment Set-Back Thermostats Variable Air Flow Air Handlers and High Efficiency Motors Air-to-Air Heat Exchangers Refrigerant?to-Water Heat Exchangers Economizers Heat Pump Hot Water Heaters Heat Pump Residential Clothes Dryers High Efficiency Lighting Improved Insulation Solar Films Solar Energy Solar Domestic Potable Water Heaters Solar Pool Heaters Cooling Systems Steam Heating Systems Vapor Compression Systems

Chapter 3: HVAC System Design

Thermal Comfort Considerations Design Considerations Minimum Materials Specifications HVAC Design Methodology

Chapter 4: HVAC System Installation

General Guidelines Fabrication and Installation Guidelines

Chapter 5: HVAC System Servicing

Refrigerant Circuit Subsystem Air-Side Subsystem Electrical Subsystem Refrigerant Circuit Subsystem Maintenance Check Superheat and System Charge Check for Acid Check for Moisture Check for Corrosion

Chapter 6: Indoor Air Quality Considerations

Factors Affecting Indoor Air Quality Sources of Indoor Air Pollution Pollutant Pathways and Driving Forces HVAC System Natural Forces Ventilation Considerations Duct Work Considerations Preventing Air Ducts from Getting Wet Treating Air Ducts Cleaning Air Ducts Unresolved Issues of Duct Cleaning Mold Sampling and Control Symptoms and Complaints Typically Related to IAQ Problems Facility Operation and Maintenance Air Handler Air Filtration Mechanical Filtration Key Points about Air Cleaning

Chapter 7: Refrigerant Handling

Ozone Depletion Greenhouse Gases and Global Warming Refrigerant Conservation Methods to Minimize the Release of Refrigerants Keeping Systems Tight Evacuating Systems Equipment Maintenance Brazing Techniques Brazing Safety

Chapter 8: Hazardous Chemical Handling

Chapter 9: Financial and Environmental Incentives for Green Systems

Economic Reasons

Health Effects of Global Warming Health Effects of Ozone Depletion

Chapter 10: Introduction to Green Marketing

Examples of Green Marketing Advertising Green Services

Additional Green Educational Websites and Sources

Figures

Figure 1. Percentage improvement in EER with QwikSEER+? control board (using 14 SEER Straight Cool and 14 SEER combined AC?furnace, return air: 80 ?F, 51% RH) 34

Figure 2. Increase in humidity removal (using 14 SEER combined AC?furnace, return air: 80 ?F, 51% RH) 34

Figure 3. Flat-plate collectors for residential water heating and hydronic (hot water) space-heating installations 51

Figure 4. Unglazed solar collectors typically used for swimming pool heating 51 Figure 5. Air flat-plate collectors used for space heating 52 Figure 6. Evacuated-tube collectors are more efficient at high temperatures 53 Figure 7. Improvements to Filter Efficiency (Based on independent laboratory test data

using the ASHRAE 52.2 test procedure) 99

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