Our project involves the new construction of a healthcare clinic that is being heated and cooled via heating and chilled water produced by a campus central plant. We are modeling the design...

Hi, I would like to seek expert advice in the following.

1) Can anybody advise if water-cooled screw chillers intended to operate at non-standard conditions (Middle East) must comply with...

We have a hotel project with VRF systems serving the guest rooms. I am struggling with coming up with a way to simulate less than 100% occupancy rate in the hotel guest rooms. I am using HAP and...

Our project is an existing 36,000 sf museum with a planned 18,000 sf addition. The existing portion is served by a dual-duct HVAC system with a boiler and chiller plant. The boilers and chillers...

Dear All,

I have a doubt regaridng the...

Talking about a VRF HVAC system. Is it a mandatory requirement that the VRF condenser and evaporative units must be ARI Certified, according with the Standard 90.1-2007? They should be labeled...

I am modeling a building that directs all building exhaust through an energy recovery ventilator, including bathroom exhaust. Can I take credit in the baseline for the ERV exhaust fan since it...

Do the requirements of Table G3.1.1A Baseline HVAC System Types apply to the whole building or just to the project area for additions and alterations? I am working on a project renovating a...

I need help on what numbers to use in this table. I keep getting an error message, too, that says: " If revising the values in Table EAp2-3, reselect energy type in all affected rows in Table...

I am documenting an energy model for LEED 2009 EAp2/EAc1 and I would like to include a document that describes the modeling techniques used for each modeled system. The reason that we would like...