[Trace-users] VRF Water

Jason Dietterick Dietterick at stonehousegroup.net
Wed Apr 2 09:09:57 PDT 2014


Typically I would leave a cooling tower for each plant as it is not possible to assign multiple plants to a single tower as far as I know.  Cooling tower energy consumption can than be divided up in each plant as a ratio based on plant capacity or input as an appropriate kW/ton.


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On Apr 2, 2014, at 10:57 AM, "Michael Chavez" <mchavez at sumacinc.com<mailto:mchavez at sumacinc.com>> wrote:

Trace users,

Did anybody have modeled an VRF – Water system? I’m trying to model this system and I have had some problems:

-          The system consists in several evaporator units located on each office, these evaporators works whit one condensing unit for each floor. All condensing units are cooled by one cooling tower located on the roof.

-          I have tried to create one WSHP  plant for each floor, delete the cooling tower of each one and create a new cooling tower for all plants. Like a next image:


-          Whit this, the calculation results shows only the first WSHP plant, and the cooling tower does not work properly.

Have you got any idea for modeling this system.?

Thanks for your help,


Michael Chávez | Analista LEED Energía Jr.

Tel: +511.253.5355 (Lima, Perú)
Tel: +593.4.600.0613 (Guayaquil, Ecuador)
Tel: + 571.3151985 (Bogotá, Colombia)
Tel: +1.773.857.7906 (Chicago, USA)
mchavez at sumacinc.com<mailto:mchavez at sumacinc.com>

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