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Pass air method

NC-v4 EQp1: Minimum indoor air quality performance
posted by Alex Edwards on Feb 21, 2022, 7:35 am

Hello!
Thanks for everyone's help, I have a question about the pass air method
we have a project that is intended to only supply fresh air to the office area, and then to take the air...

Mandatory MERV 11 or higher filters in existing building

NC-v4 EQp1: Minimum indoor air quality performance
posted by Francesco Passerini on Oct 15, 2021, 12:25 pm

The credit requests confirmation that the project has...

Last reply: Afogreen Build, Feb 9, 2022, 9:39 am

Pilot Credit INpc155

NC-v4 EQp1: Minimum indoor air quality performance
posted by Vassil Vassilev on Jan 26, 2022, 2:27 am

Greetings,

In an attempt of following this Pilot credit, the following question (related to #1b. of the Requirements) appeared:

In case our project has no recirqulation, meaning it...

ASHRAE 62.1 2010. Section 6.2.1.2 PM2.5

NC-v4 EQp1: Minimum indoor air quality performance
posted by Eric Dyer on Jan 11, 2022, 4:27 am

Hello
We are working on the LEED project in Korea.

I have a question about ASHRAE 62.1 2010.
Section 6.2.1.2 says, "When the building is located in an area where the national...

Last reply: Dang Thi, Jan 17, 2022, 3:10 am

Monitoring requirement for CAV/VAV system or fan?

NC-v4 EQp1: Minimum indoor air quality performance
posted by Camilo Velez on Jan 8, 2022, 7:18 pm

Good afternoon all,

We are working on a project where we have a 100% Outdoor Air system that will operate at 100% (constant volume) under normal operating conditions, however it...

Last reply: Camilo Velez, Jan 10, 2022, 3:53 pm

Documenting local equivelant

NC-v4 EQp1: Minimum indoor air quality performance
posted by Omar Elrawy on Apr 29, 2021, 12:04 am

We have a project in Vietnam in which the local standard (5.5 lps/person) is more stringent than ASHRAE 62.1.

Q1: Does a more stringent standard means higher fresh air requirements?

...

Last reply: Amir Rezaei, Dec 16, 2021, 3:46 pm

Are toilets considered occupiable?

NC-v4 EQp1: Minimum indoor air quality performance
posted by Timothy Ian Middleton on Dec 2, 2021, 3:32 am

We have a factory project with some rooms where I am not sure about their classification as "occupiable" or not. Specifically they are "dirt removal" and "cleaning" rooms. I am still working out...

Last reply: Fotis Kotsopoulos, Dec 13, 2021, 4:26 am

Outside Airflow Monitoring Device

NC-v4 EQp1: Minimum indoor air quality performance
posted by Jennifer Rennick on Jul 10, 2018, 6:45 pm

The mechanical engineering team on the LEED project I am working on has proposed to install current monitoring switches at each unit supply fan power feed.

Is this an acceptable...

Last reply: Rebecca Rice, Dec 6, 2021, 12:23 pm

Supply and Return Fan Tracking OA compliance

NC-v4 EQp1: Minimum indoor air quality performance
posted by Mike oliva on Jul 9, 2020, 3:49 pm

I feel like I've seen this discussed before on here but I'm not finding it at the moment.  We're wondering if a...

Last reply: Jovana Klikovac, Nov 11, 2021, 11:03 pm

Free fresh air provided to small rooms

NC-v4 EQp1: Minimum indoor air quality performance
posted by Dina El-Sady on Oct 24, 2021, 7:49 am

I am working on a project with many small buildings connected to each other , some of the very small rooms may be designed with free fresh air entering through fresh air grilles not fans , is...

Last reply: Iqbal Khalilullah, Oct 25, 2021, 10:08 am