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Forums >> Revit Systems >> Technical Support >> REVIT MEP - Outside Air
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Joined: Wed, Sep 5, 2007
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How do you input outside air systems for the calculations? We can not find any where to input outside air quantities in Revit, and it seems like the whole concept of outside air was forgotten about, i.e. no louvers as pre-installed families, no such option for air systems, etc... There is the "other" type of air system, but when you're working with unitary equipment, such as water source heat pumps, the equipment itself only has a supply and return system, so you have to connect your outside air into the return air duct. If you select "other" as the system type, Revit will not allow that system to be incorporated into the "return" air system type. Outside air is a HUGE component of the load, especially here in Atlanta, so we still have to use Trace 700 and manually input outside air into each room.So far, we have not seen any benefit to the load analysis program that comes with Revit. Are we just missing something?Any help would be greatly appreciated!!!!
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Joined: Mon, Jul 16, 2007
237 Posts
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first of all out of the box revit families are a joke. you must create everything. plus side atleast you learn family editior (which by the way can eat you up spit you out very quickly). the ies in mep is horrible. we will use that for a preliminary calc. however, we still use trace and ecotech. also dont forget to get the second web update from autodesk.
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Joined: Thu, Apr 17, 2008
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Yeah, we have been forced to show a mixing box on the water-source heat pumps in a project we are working on to add the OA ductwork. So the IES Apache software wasn't giving OA at all? I am waiting for my IES 'trial' software to get started on doing some loads. Is it easy to export/import through Trane Trace?
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Joined: Mon, Jul 16, 2007
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Trace is a very easy program to use in conjunction with revit. IES ve on the other hand can give you some problems (what program cant). You cannot spec. OA within Revit, In VE you can.
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