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Air cooled chillers and other air cooled equipment.

NC-2009 EAp2: Minimum Energy Performance
posted by Rudolph Carneiro on Dec 19, 2012, 8:11 am

Question: If I have an air cooled chiller selected at non-ARI conditions that has a full load efficiency of 3.0 COP, does it comply with the minimum efficiency requirement of 2.8 COP from ASHRAE...

Last reply: Marcus Sheffer, Dec 20, 2012, 4:01 pm

Voltage drop

NC-2009 EAp2: Minimum Energy Performance
posted by Marcio Alberto Casado Pereira on Dec 13, 2012, 7:42 am

Folks,

Is there any exception for the 2% and 3% voltage drop? We are working on a subway station and we were able to achieve 3,5% to the feeders and 3% to the to the branch circuits....

Last reply: Amy Boyce, Dec 13, 2012, 10:52 am

Baseline Building Equipment Capacity

NC-2009 EAp2: Minimum Energy Performance
posted by Kai Andrade on Dec 12, 2012, 6:42 pm

When modeling the Baseline Bldg, where is the best place to add the 15% safety factor for cooling that is allowed by G3.1.2.2? In Carrier's HAP, it can be added at the “Sizing Data” tab or at...

Last reply: Marcus Sheffer, Dec 13, 2012, 9:30 am

Heating setpoint- no heating system

NC-2009 EAp2: Minimum Energy Performance
posted by Luana Bertoletti on Dec 12, 2012, 12:20 pm

Hi,

I have a doubt on how to establish the heating setpoint for an HVAC system which has no heating system.
In a specific project, I have only cooling system serving conditioned...

Last reply: Marcus Sheffer, Dec 12, 2012, 1:04 pm

ECS- Other clg Accessories under Primary Cooling

NC-2009 EAp2: Minimum Energy Performance
posted by Ivy Chen on Dec 10, 2012, 10:24 pm

We would like to find out what have been included in item "Other Clg Accessories" under Primary Cooling in Energy Consumption Summary.

In our baseline, Package Terminal...

Last reply: Ivy Chen, Dec 11, 2012, 10:15 pm

Baseline System Selection- larger heated space- smaller cooled

NC-2009 EAp2: Minimum Energy Performance
posted by Don Carsto on Dec 11, 2012, 9:22 am

Our case involves 16,000 sqft of cooled and heated space and 90,000 sqft of heated-only space. The two spaces happen to be separated by a 4-hour fire wall. Our inclination is for the baseline to...

Last reply: Marcus Sheffer, Dec 11, 2012, 9:46 am

VAV Fume Hood Velocity in Proposed vs. Baseline Case

NC-2009 EAp2: Minimum Energy Performance
posted by Ralph Bicknese on Nov 30, 2012, 6:09 pm

We have a University Science Building that will house research and teaching labs with multiple...

Last reply: Marcus Sheffer, Dec 11, 2012, 9:18 am

Conditioned floor

NC-2009 EAp2: Minimum Energy Performance
posted by Rodrigo Dias on Dec 3, 2012, 12:14 pm

Hello

I'm working on a project that has conditioned areas on 6 floors, but in two of those floors has only 5% of all conditioned area , can I consider these floors conditioned as the...

Last reply: Marcus Sheffer, Dec 7, 2012, 9:31 am

Parking garage

NC-2009 EAp2: Minimum Energy Performance
posted by PAWAN DAHIWAL on Dec 5, 2012, 5:01 am

I have modeled parking garage in the simulation by taking 0.75 cfm/sf (exhaust)from ASHRAE 62.1-2007 which leads to energy consumpation of 43,450kWh. And in proposed case we are using CO sensor...

Last reply: Anthony Hardman, Dec 6, 2012, 5:04 pm

Future

NC-2009 EAp2: Minimum Energy Performance
posted by Graham Langton on Dec 6, 2012, 12:14 pm

How should a future process be taken into account? If a project has a space allocated for additional equipment (high heat gains, energy intensive) but it is unknown at what stage (during building...

Last reply: Marcus Sheffer, Dec 6, 2012, 3:49 pm