Hi Adriana, check your expanded version and see if your DesignSpecification:Outdoor Air Object are identical in Baseline and Proposed model. Técg. Ivan Mezzacapa Projetista de Ar Condicionado / Consultor em Eficiência Energética LinkedIN: http://www.linkedin.com/in/ivanmezzacapa Celular: (11)9963-9326From: EnergyPlus_Support@xxxxxxxxxxxxxxx To: EnergyPlus_Support@xxxxxxxxxxxxxxx Date: Mon, 20 Oct 2014 14:00:08 -0700 Subject: [EnergyPlus_Support] Outdoor Air / Mechanical Ventilation in VRF Hi Everybody, I'm modelling a VRF system. Like many of you, I have followed the example, and obtained ZERO ACH in Mechanical Ventilation for all of my zones. Did anyone managed to solve what the issue is? Many thanks in advance! Adriana Lira Energy Efficiency Consultant Revitaliza Consultores __._,_.___ Posted by: Ivan Mezzacapa <ivan_slip@xxxxxxxxxxx> Primary EnergyPlus support is found at: http://energyplus.helpserve.com or send a message to energyplus-support@xxxxxxxx The primary EnergyPlus web site is found at: http://www.energyplus.gov The group web site is: http://groups.yahoo.com/group/EnergyPlus_Support/ Attachments are currently allowed but be mindful that not everyone has a high speed connection. Limit attachments to small files. EnergyPlus Documentation is searchable. Open EPlusMainMenu.pdf under the Documentation link and press the "search" button. __,_._,___ |