Hi all, Could anyone clarify if Ireland is in climate zone 5A or 5C? Thanks in advance

Does anyone know wether or not evaporator input power should be included in the efficiency calculation of a VRF system?

Exception c requires that lab spaces use a system 5 or 7 in the same way that exception d does, but exception c does not prescribe any specific turn down during unoccupied periods.

For Data center project, I've supplied the designer team with the Data Center Calculator, so that they'd be able to fill it in with their project data. However, There are some questions in relation

We are running into a situation where the insulation is slightly under the R38 (R34.8) that is required per ASHRAE 90.1 yet the energy model shows we are over 10% energy efficient.

Hi all, This query follows on a similar theme to the previous topic. We are working on an existing building that is intending to improve the envelop performance by internally adding insulation to

What guidelines should be used for district thermal energy systems in v4 when using option 1, specifically combined heat and power systems?

The 90.1-2010 User's Manual states: "In some cases, a complete HVAC system already exists (...) the proposed building and baseline building models are the same and are based on the existing HVAC sy

Hi, We have project in Pakistan and we had done all measures for LEED certification, but due to some client personal reasons we were not able to register this project with USGBC and now after 1.5

Markus, thanks again. Since the English is not my mother tonge, sometimes I'm geting confused by enterpreting some explanation although I'm already 37 years in the HVAC branch.