Auto-Zone Control Systems Auto-Zone Plus Systems Installation & Operation (Version 03A) - Manual (Page 3)

Section 1
Design Guide
Table of Contents
Conventions....................................................................................................1
General Information .....................................................................................3
Description of System Components.................................................................................5
Design Considerations.................................................................................10
Zone Diversity................................................................................................................10
Cooling - Partial Load Conditions .................................................................................10
Heating - Partial Load Conditions .................................................................................13
Override Conditions.......................................................................................................13
Building Pressurization..................................................................................................14
Design Guide ................................................................................................15
Step #1 - Zoning.............................................................................................................15
Step #2 - Sizing the Central Unit ...................................................................................18
Step #3 - Duct Design Considerations ...........................................................................18
Step #4 - Room Air Motion/Diffuser Selection.............................................................19
Step #5 - Bypass Damper Sizing....................................................................................19
Step #6 - VFD Considerations .......................................................................................20
Step #7 - Sizing Zone Dampers .....................................................................................22
Auxiliary Heat Control Options.................................................................25
Index: ............................................................................................................27
Table of Figures
Figure 1-1: Auto-Zone Plus System ..............................................................................2
Figure 1-2: Typical HVAC Unit Installation.................................................................3
Figure 1-3:
Incorrect Zoning of Typical Building .......................................................16
Figure 1-4: Correct Zoning of Typical Building..........................................................17
Figure 1-5:
Locating the Static Pressure Sensor..........................................................21
Table 1-1:
Round Damper Sizing Chart ......................................................................22
Table 1-2: Round Damper Dimensional Data .............................................................23
Table 1-3:
Pressure Independent “K” Factors..............................................................23
Table 1-4: Rectangular Damper Sizing Information....................................................24