Hi! I have Database access error - Room not found in database. Could you please help me with that?

https://communities.bentley.com/products/building/performance/w/building_performance__wiki/31381/pipe-sizing---water-content-for-heating-and-cooling-emitters On the page above it implies you can change emitter type for your water content calculation…

I can't Find anything explaining how to create a custom cable type. From the " How to move customised Cable Files to a new version " I under stand the first window but the bottom half of this second window I don't really under stand what the initial…

Running Hevacomp, Design Database for Heat losses. (V8 SS1 SPB (V*i SS1 CP3 (06/16)) I want to apply a flat ceilling to some rooms since they are 3.6m high but have a ceilling at 2.7m. The problem is when I click the "Flat ceilling under this…

After having loaded Hevacomp with Admin privileges - Selecting Design Database - After Selecting a folder the project explorer, shown above, minimizes as expected but nothing else happens. The following page doesn't load, I don't receive an…

Hi, I'm trying to update our Hevacomp software to the latest version (currently V8i SS1 SP5). I found an older question ( https://communities.bentley.com/products/building/performance/f/hevacomp-forum/202939/what-is-the-latest-hevacomp-software-version…

Hi, I keep having this issue with one of my models. It is not letting me go into weather data to input my weather files correctly. My global changes and fabric data work fine, it just seems to be the weather data that gives the error message as shown…

Hi, I have downloaded CIBSE weather data, however when following the steps of installing the weather files from CIBSE and saving then within the Weather data>Cibse folder located at C:\ProgramData\Bentley\Hevacomp V8i\Hevacomp. I cant see no weather…

Hi, Bit of a tricky situation. I have been trying to model a small server room in an existing loft space. (quick revit model attached to show the plan with roof removed). I am having some issues when setting up the roof level. I have modelled the…

When importing Hevacomp DDB model to Openbuildings I get following error massages: 1) System.NullReferanceException: Object reference not set to an instance of an object at Bentley.Building.Se..... 2) OpenBuildings Designer has detected a problem…

I have a run time error 11 appearing when sizing heating pipework in netsys. I had previously sized the system with no issue, however made some amendments and when re-running it the error has appeared. Could anyone assist as I currently can't access…

Hi, I am getting an error when I try to size the system in Netsys Ductsizer. After drawing the system I am met with 'Duct with system marker is not the start duct for the system'. (See attached) I have tried putting the system marker in various…

Tried the other fix in this forum downloading the MatIndex.zip file and extracting in to the C drive and still have the issue. Fabric details are appearing OK also.

In these challenging times when COVID-19 is imposing significant disruptions to day-to-day activities and affecting normal business flow, we at Bentley are committed to helping you transition from an office environment to working remotely or at home.…

Hi Shane i wonder if you would kindly take a look at a project file which may be in need of repair. This has happened before and I uploaded the project folder and you where able to repair the file path to the project. The project was loading fine…

We have a project where our client is looking to provide a new air supported structure/ dome over an existing training pitch, the structure is to be heated and cooled as required. Can this be modelled using Hevacomp.

Hi, I am carrying out cooling calculations for an open plan office with FCU's. When using CIBSE Gain to calculate the room cooling loads I am selecting 'conditioned primary fresh air' as I have air at 18deg C from a central AHU with no humidification…

Hi Good morning, For the HEVACOMP Heat Loss Calculation, is there a way to know the required supply air flow based on the calculated total heat loss from the result? I'm looking at something similar with the CIBSE gain calculation where the result…

I have turned off infiltration, ventilation, occupants and casual gains from my model to test the solar load portion only. However I still see loads attributed with "Convective" and "Latent" (albeit small). Should these loads exist in my calculation…

Hi I'm running a heat gain simulation on a room that is essentially a greenhouse. The glass roof etc has all been set up as has the weather info. The results output of the simulation reads that the temperature within the room stays constant all…

I have constructed my hevacomp model in the design database using the load calculation tab along with sizing all my mechanical pipe and duct systems using the pipe and duct sizer netsys tab. I am wondering if it is possible to transfer all this data…

Hi Understood the below links gives K-value for some of the fitting however, it doesn't show the assumed value for different default bends and tees . Please could you be able to post the k vale for the default connection fittings. i want to verify the…

HI I HAVE A DUCT PASSING VIA RISER FROM L1 TO L6 AT AN ANGLE OF 45 DEGREE OR SAY NOT IN A 90 DEGREE VERTICAL WAY. PLEASE COULD YOU BE SO KIND TO DEMONSTRATE HOW THIS CAN BE MODELED. MANY THANKS

What is the latest version of Hevacomp?.? Is it V8i 26.06 .00.38 ?