Can't get if statement to work in Property Set formula

[Orden]

I'm trying to program in some information to check against our other software and I can't get an if statement to work. Any ideas?

If [Occupant Density (Pz)] > 0 Then
    Result=([Outdoor Air Rate (Rp)]*[Occupant Density (Pz)])+([Outdoor Air Rate (Ra)]*[BaseArea])


Else
    Result=([Zone Population (Pz)]*[Default Outdoor Air CFM])


End If

For some reason though, it won't accept it.

[dkoch]

Looks ok, so far as one can tell from a cut and paste.

Things to check:

1. Are all of the items enclosed in square brackets properly created references to other properties?
2. Are all of those property references unformatted real numbers, or are there Property Data Formats applied that add text prefixes and/or suffixes (to show units, for example)? If so, edit the formula property and, in the Enter Sample Values area, change the format applied to the property definition to one that does not add text-based prefixes and/or suffixes, to get raw numbers with which to do math.

As the attached image shows, I was able to get a similar formula to work. I am sure the sample values I used are totally bogus, but I added some to make certain the math was done.2015-11-10_CFMcheckFormulaProperty.png