Dear all, we have a project in Japan that uses natural gas fired heat pump to provide heating and cooling. If we would like to go with the perscriptive method, how should we compare the...

I am pursuing this credit under option 2. My client has bought a 9 story building and the project in question is for 2 partial floors and three full floors. The mechanical scope is the addition...

Hi,

The project is basically a huge sales area with some office spaces.The sales area is served by multiple compact rooftop units and the office areas are served by DOA´s for ventilation...

Hi,

I have several compact rooftop units serving a big sales area. However, only 80% of them is actually new equipment that meet the credit's criteria. If the project reuses old equipment...

I'm working on a CI project that we are currently designing VAVs for the floor(s), the main AHUs are not part of the scope of work but they have VFDs. To comply with Section 3.10, which is...

Currently working on a tenant project. Base building chilled water to each floor supplying DOAS Terminal Units. I'm planning on supplying PD calcs for representative units. Is there a specific...

Dear all,

We are working on a Commercial Interiors project, where there is a...

Hi All, I am here to post my query about chilled water system,flow and pipe sizes.

As everybody know chilled water flow is 1.5 usgpm/tr when chiller is selected at delt T 16°F & 2.4...

Hi,

My project is a student dorm building with some faculty apartments. The faculty apartment might have two or three bedrooms and one living rooms, etc. The bedrooms and living rooms are...

I am trying to understand whether the modelling for Option 2 of this credit is supposed to be done using the ECB method or Appendix G. In the initial option wording it says ECB, but under the...