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Natural vs mechanical ventilation

NC-v4 EQp1: Minimum indoor air quality performance
posted by Dina El-Sady on Sep 11, 2023, 11:42 pm

A project has a production building with a warehouse and is beinng naturally ventilated with exhaust air louvers and fresh air louvers .The machinery has direct exhaust fans to remove heat...

Last reply: Dina El-Sady, Mar 20, 2024, 5:00 am

Infiltrations

NC-v4 EQp1: Minimum indoor air quality performance
posted by Juan Perez on Feb 20, 2024, 9:59 am

Is it feasible to add an...

Alternative Compliance Paths (ACPs)

NC-v4 EQp1: Minimum indoor air quality performance
posted by Santiago Avila on Feb 9, 2024, 5:40 am

Hello everyone,

I am currently working on a project located in Germany. The ventilation strategy for the apartments will be carried out through continuous exhaust fans located in the...

MERV Filters for PM 2.5

NC-v4 EQp1: Minimum indoor air quality performance
posted by Banu Banu on Oct 21, 2023, 8:41 am

Dear All, 

In our project we have Direct Evaporative coolers . It is a garment production building. In Evaporative coolers, usually the process is mixing of Air & water. 

So, if...

Last reply: Devendra Chaughule, Jan 11, 2024, 12:25 am

Location of outside airflow measuring station inside the HVAC unit

NC-v4 EQp1: Minimum indoor air quality performance
posted by Edgar Arevalo on Jan 4, 2024, 1:15 pm

We have a 100% outside air HVAC with an energy recovery wheel serving the entire the project space.  Since there is no recirculating air getting reintroduced to the supply side, the MEP engineer...

Last reply: Edgar Arevalo, Jan 5, 2024, 10:05 am

Related to fresh air Calaulation

NC-v4 EQp1: Minimum indoor air quality performance
posted by Nagaraj Sankar on Nov 13, 2023, 11:57 am

Hi users,

1)One of our Production building project having fresh air supply with fresh air louver opposite to the exhaust fans how can account this in fresh air calculator.

2)And how...

Last reply: Gustavo De las Heras Izquierdo, Jan 4, 2024, 9:31 pm

CO sensors for residential and duplex units?

NC-v4 EQp1: Minimum indoor air quality performance
posted by Alokmay Behera on Nov 20, 2023, 8:37 am

We have a mixed project with residential and office units. Residential area has apartments and few (12) duplex units. As per LEED requirement for Prerequisite 1- Minimum IA performance, CO...

Last reply: Dave Hubka, Nov 20, 2023, 8:44 am

Ventilation Requirements for Sporadically Used Spaces

NC-v4 EQp1: Minimum indoor air quality performance
posted by Santiago Avila on Sep 6, 2023, 7:24 am

Hello everyone,

I have a question regarding which areas should be ventilated. In our project, a residential building, we have spaces on the ground floor designated for flexible work areas...

Last reply: Gustavo De las Heras Izquierdo, Nov 6, 2023, 1:09 pm

Using ASHRAE 62.1-2019 and beyond...

NC-v4 EQp1: Minimum indoor air quality performance
posted by Mark Benson on Oct 31, 2023, 11:34 am

...

Last reply: Gustavo De las Heras Izquierdo, Nov 1, 2023, 8:48 am

Monitoring- Mechanically ventilated spaces

NC-v4 EQp1: Minimum indoor air quality performance
posted by Anna Bortkiewicz on Nov 3, 2022, 6:50 am

Hello, I have a system in a hotel that has a constant air volume system of crca 550 l/s and I am not sure how to correspond to the requierement of LEED: 

  • "For constant-volume systems...

Last reply: Julio Fernandez Amodia, Oct 30, 2023, 3:05 pm