TOC

1. Intro
2. TagModel
3. Structure
4. TimeZones
5. Units
6. Grids
7. Filters
8. Zinc
9. Json
10. Trio
11. Csv
12. Rest
13. Ops
14. Auth
15. VFDs
16. Networks
17. Energy
18. Zones
19. AHUs
20. VAVs
    1. Overview
    2. Tags
    3. Sections
    4. Points
21. UnitaryEquips
22. Chillers
23. Boilers
24. Tanks
25. ElecPanels
26. Lighting
27. Builds
28. Bacnet
29. ChangeLog
30. License

VAVs

Overview

The vav tag is used to model variable air volume assets. VAVs should always be marked as equip.

Tags

VAVs should be classified with the following type tags:

• coolOnly
• series fanPowered elecReheat
• series fanPowered hotWaterReheat
• parallel fanPowered elecReheat
• parallel fanPowered hotWaterReheat

The additional equip level tags are defined for VAVs:

• hvac: always specified to mark as an HVAC asset
• singleDuct or dualDuct: ductwork configuration
• ahuRef: supply AHU
• chilledWaterPlantRef: plant supplying chilled water if applicable
• pressureDependent or pressureIndependent: control based on duct static pressure
• hotWaterPlantRef: reference plant supplying hot water
• steamPlantRef: reference plant supplying steam

Sections

We associate points with sections of a VAV using these tags:

• entering: air entering the unit from the AHU
• discharge: air exiting the unit to be supplied to the zones
• zone: conditioned space associated with the unit

However since most points are not clearly associated with the entering or discharge section we omit a section tag for most points. However any points which would conflict with the zone points however must be qualified with either discharge or entering tags.

Points

VAVs points include zone points:

• zone air temp sensor
• zone air temp effective sp
• zone air temp occ cooling sp
• zone air temp occ heating sp
• zone air temp unocc cooling sp
• zone air temp unocc heating sp
• zone air temp standby cooling sp
• zone air temp standby heating sp
• zone air humidity sensor
• zone air co2 sensor
• zone air co2 sp

Other standardized points:

• discharge air temp sensor
• entering air temp sensor
• air pressure sensor
• air flow sensor
• air flow effective sp
• air flow min sp
• air flow max sp
• air flow reheating max sp
• air flow standby sp
• air fan cmd
• air fan sensor
• air damper cmd
• reheat cmd
• vavMode sp
• ductArea sp
• perimeterHeat cmd