Log in
Forum » NC-v4 EAp2
Loading...
Topic

Shadow Boxes: Counts as Fenestration or Opaque Surface?

NC-v4 EAp2: Minimum Energy Performance
posted by Waleed AlGhamdi on Apr 25, 2019, 4:45 pm

Spandrel panels are considered as opaque surfaces per the ASHRAE 90.1 definition. Kalwall and similar products count as fenestration since they allow in light. What about a "shadow box" in a...

System 7 Reheat box leaving temperature

NC-v4 EAp2: Minimum Energy Performance
posted by Przemysław Rejczak on Apr 15, 2019, 9:02 am

Dear Everone,

We are using new version of Carrier HAP 5.11i software which forces us to set leaving temperature for reheat box. There is no requirement for reheat box temperature in...

Calculating Conditioned Area

NC-v4 EAp2: Minimum Energy Performance
posted by Keith Wallace on Apr 11, 2019, 3:38 pm

Given a building with all conditioned spaces, what is recommended or required to determine the conditioned area square footage?  Do you take measurements from the exterior face of the exterior...

Last reply: Marcus Sheffer, Apr 12, 2019, 11:11 am

Campus project with central plants serving several buildings

NC-v4 EAp2: Minimum Energy Performance
posted by Yoyo Shek on Apr 10, 2019, 11:38 pm

Hi All,

Our project composed of several buildings which share a group of main central plants (including several chillers and cooling towers).

Does below approach correct?

...

Last reply: Marcus Sheffer, Apr 11, 2019, 8:19 am

Daylight Sensors in Factory Area

NC-v4 EAp2: Minimum Energy Performance
posted by N Sai Balaji on Apr 10, 2019, 1:51 am

Hi,

I am working for a proposed LEED Factory in Bangladesh. As part of Mandatory requirements in ASHRAE 90.1 2010 Section 9.4.1.4, Automatic Daylighting Controls for Primary Sidelighted...

Last reply: Marcus Sheffer, Apr 10, 2019, 11:29 am

Parking Garage Lighting control credit

NC-v4 EAp2: Minimum Energy Performance
posted by Saif A on Apr 5, 2019, 3:14 pm

Hi everyone,

I am using the building area method to calculate the lighting power for the parking garage. The Baseline building garage lighting power is 57.42 kW and the Designed lighting...

Last reply: Michael Brown, Apr 9, 2019, 5:44 pm

Indirectly Conditioned Space Inclusion

NC-v4 EAp2: Minimum Energy Performance
posted by Hannah Helminiak on Apr 8, 2019, 5:02 pm

Hi all, 

Our building is just slightly over 25,000 sf, so we're needing to get very detailed so as to not include any unconditioned spaces in the energy model in order to meet the...

Last reply: Marcus Sheffer, Apr 9, 2019, 5:42 pm

ASHRAE 90.1-2010 Lighting Controls

NC-v4 EAp2: Minimum Energy Performance
posted by Gopinath Vasu on Apr 6, 2019, 11:37 am

Hi All,

I have a doubt regarding ASHRAE 90.1-2010 section 9.4.1.2a – “Space Control: The controlled lighting shall have at least one control step between 30% and 70% of full lighting power...

Last reply: Marcus Sheffer, Apr 9, 2019, 5:26 pm

Baseline System Selection

NC-v4 EAp2: Minimum Energy Performance
posted by Pramod Naik on Mar 26, 2019, 7:51 am

I am working on a LEED for Homes project. The project has...

Last reply: Marcus Sheffer, Mar 27, 2019, 8:54 am

Double skin facade

NC-v4 EAp2: Minimum Energy Performance
posted by Sarah Leenknegt on Mar 12, 2019, 3:48 am

Hi

How do I model a naturally ventilated double skin facade in proposed and baseline building?

- proposed building: as designed, with a thermal zone for the intermediate area. The...

Last reply: Sarah Leenknegt, Mar 26, 2019, 3:21 am