xxii
Modern Refrigeration and Air Conditioning
Thinking Green
Feature Contents
Fundamentals of Efficiency 4
Suction Line Condensation 38
Tool and Equipment Care 44
Working with Tubing 70
Proper Service Is Also Green Service 98
Avoid “Temporary Fixes” 98
Seasonal Inspections 104
Refrigerant Loss Logs 152
Refrigerant Conservation 159
Refrigerant Charging 187
Improving Power Factor 222
Variable Speed Motors 239
Motor Duty Rating 265
NEMA Premium Efficiency 266
Range Adjustment 283
Wattage Readings 311
Magnetic Bearings 358
Fixed Metering Devices 372
Defrost Timers 415
Efficiency of Freezer Designs 416
Improving Refrigerator Efficiency 418
Makeup Air 523
Controlling Indoor Air Quality 536
Passive Electrostatic Filters 544
Sealing Registers 570
Airflow Balance 596
Clean Fans 579
Dirty Coils Decrease Efficiency 608
Heat Pump vs. Electric Heat 612
Chiller Efficiency 632
Upgrading to High-Efficiency Purge Units 636
Secondary Emission-Collection Devices 637
Use of Waste Heat 663
Replacing a Mercury Switch Thermostat 693
Programming a Thermostat 705
Green Building Construction 712
Reducing Infiltration 732
Leadership in Energy and Environmental Design (LEED) 734
Heat Lag 734
Replacing an HVAC System 744
Life Cycle Cost Analysis 744
Flushing a System 750
Heating and Cooling Economizers 753
Variable Speed Blower Motors 775
Makeup Air Units and Combustion 776
Instantaneous Boilers 785
Condensing Boilers 785
Heating Large Spaces 800
Ground-Source Heat Pump Efficiency 829
Heating and Cooling Costs 831
Minimize Coil Defrost Time 846
Tax Credits 870
Heat Stages 910
Radiant Snow Melting 917
Heating Degree-Days 923
Solar Chimneys 963
Pool Covers 965
Solar and Supplemental Heat Pump Systems 966
Outdoor Ventilation and Heat Reclamation 1001
Intermediate Pressure in a Compound Compression
System 1072
Old and New Water Cooling Systems 1114
Cooling Tower Efficiency 1118
GreenChill Certification 1126
Compression Refrigeration Subsystems 1132
High-Efficiency Lighting 1194
High-Efficiency Motors 1195
Compressor Loads 1210
Motor Efficiency 1322