DX coil system in HVAC (IES version 6.2)

[wildflipsidekev]

Hi,

would greatly appreciate if anyone can help to answer this query.

I have some queries regarding IES 6.2, on the new DX coil system in ApacheHVAC. Under the curve editing options, I am able to input my own coefficients to create my own curve. However, I am not sure of the following:

1) What is the unit for tewb and tect? Is it Degree Celcius, Kelvins or Fahrenheit? It affects the coefficients of the curve that I want to create

2) I can't seem to toggle the datum temperature to 0 degrees, it keeps going back to -17.778 degrees when I exit and come back to the same tab. Is it a bug in the system and how can I go around the problem?

3) If all my inputs are in degree celcius, will T datum be 0 degrees?

Thanks in advance

Regards, Kevin