Is there any relation between diversity factor and the balance process for HVAC ?

According to:

ASHRAE Handbook—HVAC Applications (SI) chapter Testing, Adjusting, and Balancing page3 &4;

*Multizone Systems Balancing should be accomplished as follows:

1. When adjusting multizone constant-volume systems, establish the ratio of the design volume through the cooling coil to total fan volume to achieve the desired diversity factor. Keep the proportion of cold to total air constant during the balance.

6. If the engineer included a diversity factor in selecting the main apparatus, it will not be possible to get full flow to all zones simultaneously

*Dual-Duct Systems Balancing should be accomplished as follows:

1. When adjusting dual-duct constant-volume systems, establish the ratio of the design volume through the cooling coil to total fan volume to achieve the desired diversity factor.

*Proportional Balancing

Proportional water-side balancing may use design data, but relies most on as-built conditions and measurements and adapts well to design diversity factors.

*. For variable-volume systems, develop a plan to simulate diversity (if required).

no relation

• diversity factor is factor used in heating or cooling load calculation
• air balancing is opening and closing VCD , VAV , split damper to reach the wanted cfm from the air outlet