Hello everybody,

We are working on a project under LEED V4 certification.

ABOUT PREREQUISITE “MINIMUM ENERGY PERFORMANCE” , we must comply with the ASHRAE mandatory provisions and...

Good afternoon all,

Going over the 6.5.3 fan power limitation and...

Hi,

We have been getting the following comment from several reviewers:

"It is not clear if the preheat controls have been modeled as required by section G3.1.2.3. Note that the...

I am guessing this is going to be a utilization schedule. What would it look like?

For reference, ASHRAE 90.1 - 2010 Appendix G3.1.1 exception (d) - For kitchens with a total exhaust hood...

Greetings,

The project we are modeling consists of two building attached tightly one to the other (wall to wall). The HVAC project has been developing  these two building by applying one...

Hello,

I'm working on an airport project expansion project. The LEED coach told us that we have to include the airplane jet bridges, ground power units (GPU) and preconditioned air units (...

Hi there,

I am calculating the energy performance of a highrise building located in a warm climate place. The client want to have a very high WWR (>60%) even in the south facade. I...

Recent ASHRAE/IES Standard 90.1-2019 Updates include the possibility of installing an air curtain system instead of installing a Vestibule / Revolving Door Entrance.

Can this ruling be...

According to ASHRAE 90.1 / Section 9.4.1.2 , Do we have to install occupant sensor or a timer switch in electrical and mechanical rooms? 

Thanks, 

According to ASHRAE 90.1, section 9.4.1.6 „g. Stairwell Lighting – Lighting in stairwells shall have one or more control devices to automaticcly reduce lighting power in any one controlled zone...