Chapter 33 Heat Pumps ................................... 691 33.1 Residential Heat Pumps ............... 691 33.2 Heat Pump Application ................. 694 33.3 Airflow Standards ........................ 699 33.4 Defrost Cycle .............................. 700 33.5 Charging a Heat Pump System .......701 33.6 Heat Pump Thermostats ................701 33.7 Reading Heat Pump Schematics ... 703 33.8 Troubleshooting Heat Pumps ......... 707 Chapter 34 Customer Relations .....................711 34.1 People Skills ................................711 34.2 How to Win an Argument: Avoid It! ...712 34.3 Names Are Important ....................713 34.4 Become Interested in Other People ...............................713 34.5 Smile and Be Friendly ...................713 34.6 When Wrong, Admit It ....................714 34.7 Shaking Hands ............................714 34.8 First Impressions ..........................715 34.9 Showing Respect .........................715 34.10 Selling Service ...........................716 34.11 Ten Commandments of Good Service .......................................716 34.12 Service Calls ..............................717 Glossary of Technical Terms ...... 720 Index ..................................................760 Chapter 30 Gas Heat with Air Conditioning ............................... 631 30.1 Air Distribution System ................. 632 30.2 Blower Section ............................ 632 30.3 Air Filter ..................................... 633 30.4 Heating Section .......................... 634 30.5 Low-Voltage Heating Thermostat ... 642 30.6 Add-On Air Conditioning ............... 644 30.7 Heating and Cooling Thermostat ... 644 30.8 Digital Thermostats ...................... 648 30.9 Blower Motor .............................. 649 30.10 Troubleshooting Gas Furnaces ..... 650 Chapter 31 Oil Heat with Air Conditioning ... 655 31.1 Oil-Fired Furnaces ....................... 655 31.2 Gun-Type Burner Assembly ........... 656 31.3 Oil Storage Tanks ........................ 658 31.4 Oil Pumps ................................... 658 31.5 Nozzles ...................................... 660 31.6 Electrodes .................................. 662 31.7 Primary Control ........................... 664 31.8 Flame Safeguard ......................... 667 31.9 Stack Control .............................. 668 31.10 Air Conditioning with Oil Heat ....... 669 31.11 Troubleshooting Oil Furnaces ....... 670 Chapter 32 Electric Heat with Air Conditioning ............................... 675 32.1 Heating with Electricity ................. 675 32.2 Electric Heating Elements .............676 32.3 Two-Stage Heating System ........... 679 32.4 Add-On Air Conditioning ............... 682 32.5 Troubleshooting Electric Furnaces .. 687 xviii Copyright Goodheart-Willcox Co., Inc.