Ashrae Duct Fitting Database Version 60005 -

ASHRAE Duct Fitting Database: Precision Design with Version 6.00.05

2. Forgetting to Convert to Total Pressure (TP)

The Secret Life of Numbers: Inside the ASHRAE Duct Fitting Database

This specific sub-version introduced several technical refinements and new fitting data:

Better support for low-flow VAV systems.

The update includes refined Reynolds number adjustments for very low velocities (300-700 FPM), which is critical for terminal unit sizing at partial load.

: Supports calculations for supply, exhaust, and common (supply/return) duct functions. Project Management

Table 3: tblCaveats

Table 2: tblCoefficients