Upon rebooting an MP-V, that has not yet gone through a Flow Balance, the Box Flow data goes to zero.
EcoStruxure Building Operation
Building Operation Multi-purpose VAV
When a box is not yet balanced, the Balanced K-Factor is zero. Part of the calculation of Box Flow is based on the Balanced K-Factor.
There are two workarounds for this issue:
- Balance the box
- Enter in a number for the Box measured maximum flow and the Hood measured maximum flow.
Either option will update the Balanced K-Factor to being a non-zero value.
This has since been fixed and first consolidated in IPC Hotfix 3.01.02.02000 (CP1), and fixed in release firmware release v3.02.01.
See details in Box Flow goes to zero on restart, warm start, or cold start in the Known Issues and Solutions community page.