Dear Group, As you know additional requirements from LEED led to purchased heat water coils being substituted for furnis heat coils in some unitary systems.

We would like to ask something regarding a comment from a reviewer for EAc1, this is a rather vague comment in our view.

I am working on a new project which consists in 5 buildings, all have its own HVAC system designed, 3 of them have a complete HVAC, and the other 2 will only have Mechanical Ventilation to cool the

Dear All:- Our project consist of 4 floors but Air conditioning area is less than 25000 so it is confuse us to select base case system so please help us in selecting base case system Heating sour

Hey All, This question is basically for the energy modelers out there who use HAP or any other software. I have a conditioned lobby where the fan coil just uses the return air, according to our ca

Hi All, I am modelling a VRF system using ApacheHVAC in IES. But have no idea which prototype to choose.

I am working on a job with the Army Corps of Engineers that has a vehicle maintenance workbay with general exhaust requirements of 1.5 CFM/SF dictated by the RFP.

We are starting 8000 sqft Coast Guard Materials Building that has 1300 sqft air conditioned office area. Rest of the building is exhausted. How would you energy model this building?

Hello, Fact or Fiction: For EAp2 ASHRAE 90.1 §6.4.1.5.1 all mechanical Equipment must have a Label installed by the manufacturer stating that the equipment complies with the requirements of Standa

I am doing energy simulations for a factory.