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VRF efficiency requirements

NC-2009 EAp2: Minimum Energy Performance
posted by Rudolph Carneiro on Jan 30, 2013, 2:30 pm

Hello;

Question;

Are VRF sistems exempt from the efficiency requirements of 90.1-2007?

Section 6.4.1.3 states that equipment not listed can be used.

If they are...

Last reply: Anthony Hardman, Jan 30, 2013, 3:44 pm

cold room and energy sim

NC-2009 EAp2: Minimum Energy Performance
posted by Jatuwat Varodompun on Jan 21, 2013, 10:14 am

We are working a factory which has a small freezer room of 200 sf. How should we model this part? Can we just model the freezer room as a fixed process load (no actual cooling equipement similar...

Last reply: HOUCINE TLEMSANI, Jan 29, 2013, 4:37 pm

EAp2- Playground Field, Internal and External Lighting

NC-2009 EAp2: Minimum Energy Performance
posted by Marcio Alberto Casado Pereira on Jan 29, 2013, 8:01 am

Hi,

On a Arena Sports stadium we are considering the "Building method Area" for the Interior Lighting.

For the external lighting I am considering the Ashrae baseline and the...

Last reply: Marcus Sheffer, Jan 29, 2013, 9:11 am

Compliance with ASHRAE 90.1 conflict with local norms

NC-2009 EAp2: Minimum Energy Performance
posted by Ward Miller on Jan 29, 2013, 6:33 am

In Bulgaria we have a project, which if using the Building Area Method of ASHRAE 90.1-2007 meets lighting requirements; however, using the Space by Space Method requires adjustments to be made...

Last reply: Marcus Sheffer, Jan 29, 2013, 9:06 am

Chiller Efficiency: With Errata?

NC-2009 EAp2: Minimum Energy Performance
posted by Johannes Hopf on Jan 22, 2013, 7:59 am

Hello everyone,

The reference guide refers to ASHRAE 90.1-2007 with errata without addenda.

Now the Minimum Chiller Efficiency for Water Chilling Packages changed.

Original...

Last reply: Marcus Sheffer, Jan 22, 2013, 9:28 am

GLASS CURTAINWALL

NC-2009 EAp2: Minimum Energy Performance
posted by LEED Pro Consultant on Jan 15, 2013, 6:41 pm

Hello!
I would like to know from those who have worked with curtain walls, which U value do you take from ASHRAE for the baseline of the project. I'm almost sure it's no treated as a window...

Last reply: Marcus Sheffer, Jan 21, 2013, 12:51 pm

Unmet Loads Hours

NC-2009 EAp2: Minimum Energy Performance
posted by VICTOR MORENO on Jan 19, 2013, 4:09 am

Hello, i have a question about Unmet Loads Hours.

This value is (Time Setpoint Not Met During Occupied Heating + Time Setpoint Not Met During Occupied Cooling) or (Time Setpoint Not Met...

Last reply: Marcus Sheffer, Jan 20, 2013, 2:54 pm

semi-heated spaces

NC-2009 EAp2: Minimum Energy Performance
posted by PAWAN DAHIWAL on Jan 17, 2013, 5:46 am

What will be the effect on energy consumption if i model conditioned (warehouse) space as semi-heated space by using system type#9 or #10 in baseline.
my dominant baseline system type is #5...

Last reply: Anthony Hardman, Jan 18, 2013, 12:05 pm

System #7 for undesigned space

NC-2009 EAp2: Minimum Energy Performance
posted by Erika Duran on Jan 17, 2013, 3:22 pm

I am working on a residential building, with more than 20,000 SF of conditioned non residential spaces, so I am using System #7 for non residential spaces. I also have spaces with no HVAC system...

Last reply: Amy Boyce, Jan 18, 2013, 10:35 am

Interpreting CIR#1712

NC-2009 EAp2: Minimum Energy Performance
posted by Yoyo Shek on Jan 15, 2013, 4:01 am

Dear All,
I have a question in modelling the lighting power...

Last reply: Marcus Sheffer, Jan 17, 2013, 9:39 am