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Motor efficiency in 50Hz countries

NC-v4 EAp2: Minimum Energy Performance
posted by André Harms on Feb 21, 2017, 8:13 am

In response to the ASHRAE 90.1:2007 mandatory requirements for the efficiency of 60Hz motors, some had used the European IE2 standard for 50Hz motors and demonstrated equivalency. The ASHRAE 90....

Last reply: Marcus Sheffer, Feb 21, 2017, 8:44 am

Commissioning required for a CHP?

NC-2009 EAp1: Fundamental Commissioning of Building Energy Systems
posted by André Harms on Jun 8, 2016, 10:02 am

One of our factory projects is planning on installing a...

Last reply: Scott Bowman, Jun 10, 2016, 11:37 am

Car wash bay

NC-2009 WEp1: Water Use Reduction
posted by Marni Punt on Mar 18, 2015, 10:36 am

Hi, I am working on an office building and the team is considering to include a car wash...

Last reply: Geoffrey Katz, May 12, 2016, 9:34 pm

Natural Ventilation

CI-2009 EAc1.3: Optimize energy performance - HVAC
posted by Chilufya Lombe on Jan 21, 2016, 5:46 am

Good day, we have a project that is naturally ventilated. ASHRAE 90.1 2007 states that the energy cost budget method cannot be used for designs with no mechanical systems. We have all the...

Last reply: Marcus Sheffer, Apr 25, 2016, 12:07 pm

Surrounding density and Diverse Uses

NC-v4 LTc4: Surrounding density and diverse uses
posted by Tim Bell on Sep 22, 2014, 7:11 am

I am currently working on a major project in South Africa that will provide diverse uses to the building occupants only as the site is fully enclosed for security reasons. The credit states that...

Last reply: Tristan Roberts, Mar 10, 2016, 10:48 am

Cold rooms

NC-2009 IEQp1: Minimum indoor air quality performance
posted by Jutta Berns on Jul 20, 2015, 9:08 am

Good morning,

We have a project that has two cold rooms at -17 and 0 degrees Fahrenheit. These rooms are temporary storage locations of perishable product.
They will be regularly...

Last reply: Michael Ozenich, Feb 22, 2016, 4:10 pm

International Military Bases

NC-2009 SSc4.1: Alternative transportation - public transportation access
posted by Peg Manuel on Sep 1, 2015, 5:48 pm

Under the credit language for this credit, option 2 – there is NO MENTION of the words “public transportation.” It is clearly identified under options #1 & #3.
Our project at Camp...

Last reply: Peg Manuel, Nov 18, 2015, 7:53 pm

Insulation of Piping Cast into Concrete

NC-2009 EAp2: Minimum Energy Performance
posted by André Harms on Nov 6, 2015, 5:36 am

We are working on a project where a significant amount of the domestic hot water ring feed piping will be cast into the concrete walls, and the designer is querying if these pipes will need to be...

Last reply: Marcus Sheffer, Nov 6, 2015, 9:46 am

Clarification on the use of ACMV system

NC-2009 EAp2: Minimum Energy Performance
posted by Andrew Xiao Junzhao on Oct 29, 2015, 2:01 am

I am currently working on a project in Kenya. The cooling load for the commercial office tower is around 1900RT. This project will attempt for LEED CS and will be targeting Silver rating. Water-...

Last reply: Marcus Sheffer, Oct 29, 2015, 10:00 am

Engineered natural ventilation system

NC-2009 IEQp1: Minimum indoor air quality performance
posted by Jutta Berns on Oct 9, 2015, 5:42 am

Hi all

We have three Warehouse's that use 'turbo ventilators' (wind driven extraction fans) and not a pure mechanical system. The warehouses also do not have enough enough openings to meet...

Last reply: Jutta Berns, Oct 27, 2015, 4:57 am