RE: wall heights
Hi,
Please use the 'Setup intermediate floors/ceilings' function (located in CAD Input > Roof/floors ) to set up the adjacencies between these floors. This will remove all gaps between your floors.
RE: Window glazing properties, CIBSE Gain
Hi Kenny,
The different standards used by each Hevacomp calculation prescribe their own equations, each requiring their own particular variables. In the case of the CIBSE Gain calc the most important variables are the Solar Gain Factors. SHGC is not…
RE: Adding a layer type on wall build up
Hi Kostas,
You can enter the thermal properties of the material by selecting Special Solid Layer, at the bottom of the Layer Type list:
Adding a layer type on wall build up
Hi,
I am a newbie on the software and I would appreciate your help.
I am trying to calculate the U-Values of an existing external wall for a residential property. The insulation I need to add is kingspan kooltherm K118 however the software doesn…
RE: Same Loading Units Different Flowrates
For other users who may experience the above - this issue was due to different pipe sizing standards at each outlet. Please find further details here.
Inconsistent Flow Rate at Outlets
Product(s):
Hevacomp
Version(s):
V8i
Environment:
N/A
Area:
Netsys
Subarea:
HWS and CWS
Problem Description
Outlets in HWS or CWS systems may have differing Loading Units, despite the outlets…
RE: How to include Hot water cylinder in Netsys (CWS)
Hi Jozef,
The guidance here should assist with modelling this.
How to include Hot water cylinder in Netsys (CWS)
I'm designing the CWS. The Hot water installation requires a Cylinder.
How can include a cylinder in the CWS design? I just can find the option to include a Cold water tank in the system.
Thanks
RE: Pipework Velocities Input
Hi Jamie,
The CIBSE table is using typical bands therefore it would make sense to enter the highest CIBSE value for each band in the system marker. This limits the velocity for any sizes within that band. The settings shown below would meet that criteria…
Limitations, assumptions and approximations of Hevacomp, particularly CIBSE Gain
I am wondering if you could help point me in the right direction.
I am wanting to better understand what are the limitations of Hevacomp in terms of the underlying assumptions and approximations that the software uses.
I am mostly interested in the…
RE: Glazing database - effect of adding blind on G value and Shading co-efficient - CIBSE Gain
Hi Michael,
It is my understanding that the Uvalue and light Transmittance figures will not be affected by the blind, while the Shading Coefficient and SHGC would definitely be impacted. However the glazing manufacturer will need to confirm this for…
How to display Section Numbers on your Netsys system
Product(s):
Hevacomp Mechanical Designer
Version(s):
V8i
Environment:
N/A
Area:
Netsys
Subarea:
All
Overview
Enabling section numbers can help to provide clarity when inspecting or troubleshooting…
RE: Rooflights - Design Simulation
Hi Andrew, Rooflight openings are assumed to be a flat opening based on a specific percentage of the rooflight area. For pivoting rooflight openings the Opening Factor should be determined from the window/rooflight opening angle, where the minimum opening…
Setting up software for use in two different locations
Product(s):
Bentley Hevacomp
Version(s):
V8i (N/A)
Environment:
N/A
Area:
N/A
Subarea:
N/A
Overview
It Is possible to set up Bentley Hevacomp software to make the transition from using it in…
Locating a HOSTED activation key
Product(s):
All Hevacomp Products
Version(s):
V8i
Environment:
N\A
Area:
Activation
Subarea:
N\A
Defect Number:
Overview
As part of the Bentley Hevacomp software installation, an…
How do I install Bentley Hevacomp V8i? (v25)
Product(s):
Mechanical and Electrical Designer
Version(s):
V8i (25)
Environment:
N/A
Area:
N/A
Subarea:
N/A
Introduction
The final version of Bentley Hevacomp V8i (v25) consists of three parts…
How do I download and apply the final service pack (update)?
Product(s):
All Hevacomp Products
Version(s):
V8i (25)
Environment:
N/A
Area:
N/A
Subarea:
N/A
Introduction
The final service pack (update) for Bentley Hevacomp V8i (v25) is available for download…
How do I install Bentley Hevacomp V8i? (v26)
Product(s):
Mechanical and Electrical Designer
Version(s):
V8i (N/A)
Environment:
N/A
Area:
N/A
Subarea:
N/A
Introduction
The latest version of the Bentley Hevacomp V8i (v26) installation…
Hevacomp Part L Energy Assessor courses: Now open for registration
Hevacomp Energy Assessor (Non-dwelling) Level 3 & 4 (SBEM)
Allows Hevacomp users - via an accredited Energy Assessor scheme provider - to work towards Energy Assessor status to show competency in production of EPC's using an approved SBEM interface…
Pipe and Duct fittings - K values
Product(s):
Hevacomp Mechanical Designer
Version(s):
V8i
Environment:
N/A
Area:
Netsys
Subarea:
N/A
Overview
K values for fittings are considered when pressure drop per meter is calculated…
Netsys annotation - displaying unusual results
Product(s):
Hevacomp Mechanical Designer
Version(s):
V8i (N/A)
Environment:
N/A
Area:
Netsys
Subarea:
Results
Overview
Duct or Pipe property notes show unusual or unchanging results when you…
Prepare for your Hevacomp Software competency exam…
Beginning in November we are offering the Hevacomp System Builder Mechanical for Energy Assessors courses. These courses are for Hevacomp users preparing for Energy Assessor status with one of the accredited EA scheme providers. These courses work towards…
RE: cable calcs
Hi Ian, I would firstly advise making sure that your software is up to date so that you are availing of all cable types - in particular please ensure that you have the latest Content Pack installed. This is Content pack 3 which can be downloaded as detailed…
RE: Heat loss calculation report showing a blank page. Running Windows 10
Hi Luis,
This usually means that Crystal Reports (i.e. the program that runs in the backround to take care of Hevacomp reports) is not working properly and needs to be reinstalled. Please find details on how to do so here.
Duct Sizing - Fitting, terminator and connection codes
Product(s):
Hevacomp Mechanical Designer
Version(s):
V8i (N/A)
Environment:
N/A
Area:
Netsys
Subarea:
Ductwork
Overview
A number of codes are used in Netsys Duct Sizing reports. While some…