Some HVAC components that exist in OpenStudio are missing from the HVAC library

[DavidGoldwasser]

cc: @kbenne

One such example is Fan:OnOff, but there may be others.

[mbadams5]

Some comments regarding Fan:OnOff specifically since I ran into some issues with it and had to investigate. Fan:OnOff can not be added to an AirLoopHVAC but can only be uses in certain ZoneHVAC and Unitary systems. If you try to run E+ with a Fan:OnOff on an AirLoopHVAC (part of a Branch within E+) then you get the following error message...

This component may only be referenced by a parent component such as AirLoopHVAC:Unitary:Furnace:HeatCool or similar.

Thus any system that can use a Fan:OnOff object must define it as a variation within the HVAC library since there is no method to attach different fans from the GUI.

Also there are a quite a few bugs surrounding Fan:OnOff (addToNode, constructor, components hard coded to Fan:ConstantVolume, and more) but that is a separate issue.

[DavidGoldwasser]

In addition to some missing components in 1.1.1 I noticed that the category for "AirTerminal Single Duct VAV Reheat" shows up twice with "Air Terminal Single Duct Constant Volume Reheat" sandwiched in the middle.

[kbenne]

Also parallel fan powered box.

[MatthewSteen]

The following are missing in 1.6.0:

AirTerminal:SingleDuct:VAV:HeatAndCool:NoReheat

CoilCoolingWaterToAirHP

CoilHeatingWaterToAirHP

[macumber]

This issue is too general, @kbenne let's make sure we have captured all the objects in this issue then open new issues for any future objects

[macumber]

@kbenne @asparke2 I don't see this in pivotal. As I said before, this is too general. If there are any specific objects missing let's add those and close this issue.

[macumber]

@kbenne @asparke2 I don't see this in pivotal. As I said before, this is too general. If there are any specific objects missing let's add those and close this issue.

[DavidGoldwasser]

I think at least 5 specific objects are listed in the issue and comments. If all of those are in, then we can close, it but not a bad idea to proactively check that everything is in there by going through them. In one case an object showed up twice in the list.

[kbenne]

@MatthewSteen you may correct me if I'm wrong but I believe the only way to get CoilCoolingWaterToAirHP or CoilHeatingWaterToAirHP on air loop is to put it in a AirLoopHVACUnitarySystem. Even the coil system wrapper won't do it, if I recall correctly. I think the correct course of action on those two is to simply remove the category.

[kbenne]

Parallel fan powered boxes are now covered.

[kbenne]

It appears that Air Terminal Single Duct VAV Reheat is correct in current code. See above screenshot.