Hello fellow eQuesters,

I'm sure we all get the standard LEED review comment regarding Fan
equivalent full load hours (EFHL).

I received this one on my current project (elementary school in Ohio with
heat recovery units.) I have confirmed that my fan schedules for both
models are exactly the same. But I do have drastically different EFLH
values for the baseline (over 3,000) and proposed (less than 1,500).

I have made changes in my models, but I cannot seem to get the proposed
hours over 1,600 of run time.

QUESTION: Do any of you have any experience of suggesting to the LEED
Reviewer that it is possible to have this significant of difference between
the two models hvac systems AND how can I show justification for these run
hours?? Any advice & suggestions are welcomed at this time.

Here is the LEED comment I received with highlighted notes:
. Table EAp2-5 of the form indicates that the equivalent full load hours
for interior fans in the Proposed and Baseline model are 1,200 hours
(57,951 kWh/48.31 kW) and 3,702 hours (130,702 kWh/35.31 kW), respectively;
however, it is unclear if the HVAC fans are modeled as cycling to meet the
cooling and heating loads of the building during unoccupied hours. Table
G3.1.4 in the Proposed building column requires that HVAC fans that provide
ventilation air in the Proposed model must be modeled as operating
continuously during occupied hours and cycled to meet the cooling and
heating loads of the building during unoccupied hours, unless one of the
exceptions of Table G3.1.4 are met. In addition, Section G3.1.2.4 requires
that supply and return fans reflected in the Baseline model must be modeled
as operating continuously during occupied hours and cycled to meet the
cooling and heating loads of the building during unoccupied hours,