Hi Ashraf,

First of all I would like to know that which software you are using for
Energy Simulation. If eQuest, go through my comments in red.

1. It is unclear whether one Baseline Constant Volume system was
modeled per thermal zone in the Baseline Case as required. Please verify
that one system was modeled per zone, and that the Baseline System
efficiency for each zone was modeled consistently with the capacity for the
Baseline System serving that zone. (please guide me how to solve this
comment)- Clarify your baseline system and Fan control type from Table
G3.1.1.A and Table G3.1.1B as per your building area or no. of floors and
also confirm that that your system efficiency meets the section 6.4.1.1.

2. Section G3.1.2.9 describes calculation used to determine the fan
power in the baseline building. Please list the total fan volume,
capacities, and fan power for the Baseline and Proposed system. (As my
system doesn?t have any Return fan, so i am dividing the ASHRAE total Fan
power by 70% supply, 20% return, 10% exhaust based on my understanding.
Please guide me if any changes required)- Reviewer is not asking about the
Return fan, reviewer has asked for model the Fan power in baseline system as
per table G3.1.2.9. Thus you should model the kW/CFM in baseline system as
per formula of Baseline Fan Brake Horsepower in Table G.3.1.2.9. Please see
attached Fan power document to model the kW/CFM in eQuest.

3. Based on supporting document, supply fan volumes of some of the
zones in the baseline design appear to be modeled as ?AUTOSIZED?. For the
baseline design the fan supply volumes should be calculated based on the
system capacity and a temperature differential of 20?F, as set forth in
Section G3.1.2.8.(Please guide me Where can we enter the temperature diff,
is in Cooling Coil or any other ways.) ? As per Table G3.2.8, baseline
building design shall be based on a supply-air-to-room-air temperature
difference of 20?F. Its means that if your room temperature is 75?F then the
zone entering minimum supply temperature should be 55?F. (Excerpt attached
to model the zone entering minimum supply temperature).

Let me know if you get any other comments on this.

Ashu Gupta