Auto-Zone Control Systems Auto-Zone Basic Systems Installation & Operation (Version 02C) - Manual (Page 5)

Section 1
Design Guide
Table of Contents
Conventions .....................................................................1
General Information.........................................................3
Description of System Components.................................................................................3
Design Considerations.....................................................5
Zone Diversity .................................................................................................................5
Cooling - Partial Load Conditions ...................................................................................5
Heating - Partial Load Conditions ...................................................................................7
Override Conditions.........................................................................................................7
Building Pressurization....................................................................................................7
Design Guide....................................................................8
Step #1 - Zoning ..............................................................................................................8
Step #2 - Sizing the Central Unit ...................................................................................10
Step #3 - Duct Design Considerations...........................................................................10
Step #4 - Room Air Motion/Diffuser Selection.............................................................11
Step #5 - Bypass Damper Sizing ...................................................................................11
Step #6 - Sizing Zone Dampers .....................................................................................13
Round Dampers .............................................................................................................15
Rectangular Dampers.....................................................................................................15
Pressure Independent Zone Dampers ............................................................................16
Auxiliary Heat Control Options...................................... 17
Relay Expansion Board .................................................................................................18
Table of Figures & Tables
Figure 1-1: Auto-Zone Basic Control System...............................................................2
Figure 1-2: Control Zones Affected by the Outdoor Load............................................9
Figure 1-3: Locating the Static Pressure Sensor for Bypass Damper Control ............12
Figure 1-4: Round Damper Dimensions......................................................................14
Figure 1-5: Rectangular Damper & Kit Dimensions...................................................14
Table 1-1: Round Air Damper Selection .....................................................................15
Table 1-2: Rectangular Damper Selection...................................................................15
Table 1-3: Pressure Independent Flow Factors............................................................16