I am not sure why it says on the documentation screen shot that the total occupancy for the VRP calcs should be consistent with occupancy for other credits.

From the reference guide: "Show compliance with the applicable requirement above through measurements taken at the system level (i.e., the air-handling unit).

I try to fill out the ASHRAE 62MZ calculator and have some problems with it: 1) We have lots of AHUs in our building (Some Vanitlation systems, some AC-systems and some are only exhaust systems).

We've had a designer tell us that built-in furniture and case work (like a fan-coil unit enclosure) can be deducted from the square footage of a room when calculating the window opening requirement

Hello; Out BAS does not measure air flow (CFM), but, it does measure Return Air and OA C02 values. Can this PreReq be met using CO2 measurement (demand ventilation) rather than CFM?

In our building we have two main AHU that supply 26 AHU (one for each floor of the building) and then we have VAVs for each zone in each floor. Do I need to perform measurements just in the two ma

We are using the 62MZ Calculator spreadsheet for an office building. The HVAC system does not utilize VAV boxes or any kind of terminal unit. Rather, it just feeds directly into each space.

Has anyone had experience documenting IEQp1 in the following situation?: I recently visited a facility that has one outdoor air intake for multiple AHUS.

ASHRAE specifies that the Ventilation Rate Procedure or the IAQ Procedure can be used to ensure that mechanical ventilation systems meet ventilation requirements in ASHRAE 62.1 (Section 6.1).