Coil:Cooling:Water Design Load is 0

asked 2019-06-27 09:05:12 -0500

Fábio Batista's avatar

Hello everyone,

I am currently modeling various FCU 4 pipe systems and I am strugling with properly sizing the water cooling coils. In particular, I would like to ask what may be causing my "Cooling Coils --> Design Coil Load [W]" output in "Equipment Summary" section to always result in 0 if I hardsize the cooling coil design conditions based on my known project conditions, i.e., if i leave all inputs as "autosize" the design coil load is not 0, however if I input data the result is 0 W.

AUTOSIZED image description

HARDSIZED image description

INPUTS image description

Thank you all in advance.

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What is your cooling thermostat setpoint? What are the design supply water temperatures in the system sizing on your loop and in the setpoint manager for the supply outlet node?

mdahlhausen's avatar mdahlhausen  ( 2019-06-27 10:24:28 -0500 )edit

My cooling thermostat setpoint is 24ºC. The Design Supply water temperatures are 7ºC in the system sizing the loop as well as in the in the supply outlet node Setpoint Manager.

Fábio Batista's avatar Fábio Batista  ( 2019-06-27 10:51:57 -0500 )edit