[TRNSYS-users] Modelling a cooling coil Type 123

["Max Philipp Krebs" <M.Krebs@stud.hs-esslingen.de>]

Hi there,

I have a question concerning a cooling coil.

I want to model a cooling coil Type 123. My goal is to implement a set
temperature for the outlet fluid temperature. For example: Cooling power
should only be provided if the inlet air temperature is above 20°C and
then the coil should have a set temperature for the outlet air temperature
to be around 21°C.
How can I do this? On/Off Controller doesn't work because there is always
the error that the cooling capacity must be greater than 0 which obviously
isnt the case if the inlet temperature is below 20°C.
I have tried it with an equation and a gt-function but the result isnt
satisfying.

Thanks for your help!

Regards,
Max