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non-attainment area for PM2.5

NC-v4 EQp1: Minimum indoor air quality performance
posted by Francesco Passerini on Feb 24, 2016, 4:28 am

In Europe which parameters shall be considered to establish whether the site is non-attainment area for PM2.5?

Last reply: Takayuki Hirota, Apr 12, 2019, 12:51 am

Minimum Indoor air quality compliance procedure- 100% OA AHU with zone level recirculation

NC-v4 EQp1: Minimum indoor air quality performance
posted by Isabel Santos on Mar 15, 2019, 11:11 am

Hello Everyone,

I have an office floor that is conditioned by a Fresh Air handling Unit (100% Outdoor Air) with Heat Recovery and in some enclosed office spaces we have Fan Coil Units (FCU...

Last reply: otto, Mar 22, 2019, 9:43 am

Refrigerated Storage rooms ventilation requirements

NC-v4 EQp1: Minimum indoor air quality performance
posted by Luis Andrade on Feb 1, 2019, 1:12 pm

Hello,

I have a doubt regarding the need to ventilate refrigerated warehouses or storage rooms.

As per Addenda L of ASHRAE 62.1 - 2010, refrigerated strorage rooms with a cooling...

Last reply: Dave Hubka, Mar 21, 2019, 7:53 am

Airflow monitor alarms

NC-v4 EQp1: Minimum indoor air quality performance
posted by Nancy Henderson on Aug 30, 2018, 1:17 pm

We have several single zone RTU's that will need direct airflow monitors because the units have DCV.  The contractor says the low OA alarm will be located on the units at the roof.  They do not...

Last reply: Dave Hubka, Mar 19, 2019, 3:52 pm

Radon mitigation in High-Rise Mixed-Use project

NC-v4 EQp1: Minimum indoor air quality performance
posted by GANESH NAYAK on May 10, 2017, 3:30 pm

A high-rise mixed-use project with two levels of office and multiple levels of residential is in EPA Zone 1 for radon. All the codes addressing radon mitigation listed in the prerequisite...

Last reply: Jessica Eskro, Mar 12, 2019, 5:00 pm

Natural Ventilation monitoring systems?

NC-v4 EQp1: Minimum indoor air quality performance
posted by Avideh Haghighi on Feb 26, 2019, 5:02 pm

Hello, we have a project that is naturally ventilated, but doesn't have direct exhaust airflow (offices are ventilated through a central atrium, atrium is naturally ventilated with gravity...

VRP Calculations- compliant or not

NC-v4 EQp1: Minimum indoor air quality performance
posted by susan eguia on Feb 7, 2019, 5:26 pm

Hi,

We completed the VRP calculations and the summary tab under "Outdoor air intake flow provided meets or exceeds Vot?", it says Yes or No for each system.

What is the rule of...

Dwelling Units/Residential definition for ventilation

NC-v4 EQp1: Minimum indoor air quality performance
posted by Larry Jones on Sep 30, 2015, 11:27 am

Can anyone provide me with a definition or point me towards how LEED v4 defines a dwelling unit? I have a dormitory project and am trying to interpret the Resi Only requirements for v4. As an...

Last reply: Takayuki Hirota, Jan 23, 2019, 8:06 pm

Intermittent ventilation

NC-v4 EQp1: Minimum indoor air quality performance
posted by Dustin Smith on Jan 22, 2019, 11:16 am

Has anyone successfully used scheduled intermittent ventilation for a constant-volume exhausted space to avoid overventilation, and to minimize energy usage, in a warehouse or similar space?

DX unit fan cycling with occupancy

NC-v4 EQp1: Minimum indoor air quality performance
posted by Saif Alsaeed on Jan 17, 2019, 6:05 pm

Hi

I have some of the amenity spaces in a residential building served by small constant flow DX units. The outside air is routed to the units and balanced to provide the required minimum...