Honeywell AUTOMATIC CONTROL Engineering Manual page 507

Cooling control processes 236
Cooling Data 474
Cooling Process 44
Cooling Tower
Capacity Control 318
Control 318
Fan Control
On-Off 319
Two-Speed 319
Variable Speed 320
Performance Characteristics 318
Cooling-Tower
Free Cooling 325
Dual Chillers 327
Corrective action 5
Critical pressure drop 434
Custom Control Programming 143
Cycle 5
Cycling 5
Cycling rate 5
D
Damper
ACTUATOR AND LINKAGE
Actuator Selection 463
Jackshaft 463
Multiple actuators 462
Positive positioner 462
Application Environment
Corrosion 461
Nuclear/Seismic 461
Static Pressure 461
Temperature 461
Turbulence 461
Velocity 460
Applications
Face and bypass Control 470
Mixed Air Control 469
Throttling Control 470
Baffle 457
Construction 458
Mounting alternatives 462
Normally open/normally closed 461
Performance data
Leakage rating 458
Pressure Rating 460
Temperature rating 460
Torque requirement 460
UL Classification (fire/Smoke) 460
Velocity rating 460
Pressure drop 468
Sizing
Damper Characteristics 464, 467
Determining Size 465
Other considerations 467
System Characteristics 463
Types
Fire 456
Low Leakage 454
Multiple section 457
Parallel and opposed Blade 454
Round 454
Smoke 456
Damper Control 105
Dampers 76
Data File Programming 143
Data Penetration 196
DDC 6
Deadband 6, 297
Definitions
Chiller, Boiler, And Distribution System Control Ap 297
Degree Days 472
Dehumidification 12
Dehumidification and Reheat 52
Dehumidification control processes 243
Dehumidifier
Air Washer 51
Density 38
Density Conversion Multipliers 481
Desiccant Drying 67
Design considerations 158
Design procedures
Indoor air quality 161
Ventilation rate 161
Deviation 6, 120
Dew-Point Temperature 38
Differential 59
Differential Pressure Sensor Location 359
Digital 6
Digital control 6
Digital Unit Ventilator Control 419
Digital-to-Analog (D/A) Converter 133
Direct Acting 59, 120
Direct Digital Control 133, 134
Direct Digital Control Software 137
Direct Heat Transfer Substations 386
Discharge Air 59
Distributed Power Demand 142
Distribution System
AHU Valve High Differential Pressure Control 354
Flow And Pressure Control Solutions 350
Fundamentals 347
Steam
Supply And Return Main Pressures 375
Valve Selection 350
Water 337
Distribution Systems
Chilled Water 366
Classification Of Water 337
Control 337
Hot Water 360
Low Pressure Steam 372
Methods Of Controlling 350
Steam 370
Condensate Return 372
497 ENGINEERING MANUAL OF AUTOMATIC CONTROL
GENERAL ENGINEERING DATA
INDEX