Table of Contents
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Series 60
Actuators 103, 106
Controller 103
Floating Control Circuits 106
Floating Operation 106
Two-Position Control Circuits 103
Two-Position Operation 104
Series 80
Control Circuits 102
Controller 102
Operation 102
Series 90
Actuator 107
Bridge Circuit 108
Control Circuits 107
Controllers 107
Minimum Positioning 113
Operation 108
Switching Circuits 112
Transfer Circuits 112
Series Fan ATU 404
Setpoint 7, 15, 60, 121
Short cycling 7
Shut-off 429
Sick building syndrome 153
Signal Amplifier 63
Single-Duct VAV ATU 400
Single-Pressure Reducing Valve 69
Single-seated valve 431
Sizing 437, 441
Sling Psychrometer 38
Smoke control 285
Smoke Management Fundamentals 171
Acceptance testing 181
Causes of smoke movement
Buoyancy 174
Expansion 175
HVAC 177
Stack effect 175
Wind velocity 176
Control of malls, atria, and large areas 181
Control of smoke
Airflow 178
Pressurization 177
Objectives 173
Codes and standards 174
General 173
Layout of system 174
Purging 178
Stairwell pressurization control 180
Zone pressurization control 179
Snap Acting Relay 78
Software
Application 133, 137
Building Management 142
Direct Digital Control 137
Operating 133, 134
Solenoid Brake 97, 100, 101
Solenoid Valve 128
ENGINEERING MANUAL OF AUTOMATIC CONTROL
Specific Volume 39
Spring Range 74
Stack effect 271
Starters 114
Steam
Heating Devices 371
Pressure, Temperature, and Density 367
Properties 366
Quality 367
System
Objectives 366
Steam Coil
Low Temperature Protection 373
Performance
Modulating 371
System Design Considerations 373
Steam Distribution Systems 368
Steam Distribution Systems and Control 366
Steam Jet Humidifier 46
Steam Piping Mains 368
Steam System Heat Characteristics 367
Steam Systems
Advantages 366
Steam Traps 368
Steam Valve
Control 105
Sizing 441
Step control 7
Step controller 19
Electric 114
Storage Converters 378
Strain Gage 127
Substations
Direct Heat Transfer 384
Hybrid Heat Transfer 386
Indirect Heat Transfer 385
Summer/Winter Changeover Control 105
Superheat 296, 297
Supply Air
Air Leaving an Air Handling System 60
Supply and Return Main Pressures 373
Surface Integration 196
Surge 296
Switch
Pneumatic
Pneumatic Manual Positioning 84
Pneumatic Potentiometer 81
Pneumatic Switch 83
Switching Relay 77
Symbols 296
System Application
Electronic 130
System Configurations 186
System Initialization Programming 143
System Integration 196
System-Level
Controller 133, 136, 146, 185
Controller Functions 185
493
INDEX
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