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Accounting for transfer air between spaces in the Minimum Indoor Air Quality Performance Calculator

CI-v4 EQp1:Minimum indoor air quality performance
posted by  Akos Brandecker  on 

ASHRAE 62.1 allows for air to be moved from one indoor space to another (transfer air) as long as the space air is transferred from is of equal or lower classification than the space it is transfer

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Our project needs some clarification regarding Minimum Indoor Air Quality Performance Calculator.

CI-v4 EQp1:Minimum indoor air quality performance
posted by  Nagaraj Sankar  on 

One of my LEED v4 ID+C project getting below comments from LEED reviewer for Minimum Indoor Air Quality Performance Calculator (Project having AHU with VAV Boxes).

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Sat Feb 1, 2025, 9:59 am

Air Flow Monitoring Device measuring two heat pumps

CI-v4 EQp1:Minimum indoor air quality performance
posted by  Eric Dammeyer  on 

We have a LEED v4 ID+C for Retail project that has two water-source heat pumps (WSHP). One of these WSHPs has an OA CFM below 1000, so it is not required to have a monitoring device.

1
Thu Jun 13, 2024, 6:29 pm

Monitoring NOT req if ventilation systems are not within scope of work?

CI-v4 EQp1:Minimum indoor air quality performance
posted by  RDK E&S  on 

I'm wondering if my understanding of the ID+C reference manual (pg 311) is correct: no airflow monitoring equipment is needed if the ventilation system isn't in the scope of work?

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INSPEC Sustainability Group LLC
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43 thumbs up
Tue Apr 30, 2024, 6:24 pm

Location of outside airflow measuring station inside the HVAC unit

CI-v4 EQp1:Minimum indoor air quality performance
posted by  Edgar Arevalo  on 

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 engine

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1
Tue Apr 30, 2024, 6:21 pm

Want to consider 30% fresh air in printing areas

CI-v4 EQp1:Minimum indoor air quality performance
posted by  Nagaraj Sankar  on 
Hi users, One of office project having printing spaces in open office. It is in the name of repro. As per LEED Requirement, whether this space should be negatively pressurised or not.
1
Wed Sep 13, 2023, 4:53 am

Natural ventilation in polluted cities

CI-v4 EQp1:Minimum indoor air quality performance
posted by  Antonio Tenorio  on 

I'm working on an ID+C project located in Mexico City. 

The owner wants to implement natural ventilation to save energy. 

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Exhaust Ventilation make up air

CI-v4 EQp1:Minimum indoor air quality performance
posted by  Eric Dyer  on 

Hello, we are dealing with the interior project of a beauty shop.


Some of the space in the project is ventilated with an Energy Recovery Unit and an Exhaust Fan.

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