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Tankless Electrical Water Heaters

CS-2009 EAp2: Minimum Energy Performance
posted by Pedro Urazan on May 11, 2016, 10:51 am

Hi,

Do tankless Electrical water heaters have to comply with any efficiency requirements, in order to comply with the 7.4 mandatory provisions? On table 7.8 the performance requirements...

Last reply: Marcus Sheffer, May 11, 2016, 2:34 pm

Chilled Beam System Energy Modeling- CS v2009

CS-2009 EAp2: Minimum Energy Performance
posted by Shenhao Li on May 6, 2016, 5:14 am

Hello Everyone,

I have an office project which is designed to use a little compicated HVAC system. There are 3 Central Heat Recovery Units on the roof top to provide pre-cooled/heated...

Last reply: Shenhao Li, May 10, 2016, 5:55 am

Carrier air to water chiller (non standard (ARI) testing)

CS-2009 EAp2: Minimum Energy Performance
posted by David Lazaro on May 3, 2016, 12:58 pm

I would like to check if the Carrier model 30RQ0262 (COPc=2,62 according ARHI test 550/590 despite ASHRAE requires ARI 340/360) will meet that Mandatory Provisions in terms of Equipment...

Last reply: David Lazaro, May 9, 2016, 10:08 am

Air- Water Heat Pumps

CS-2009 EAp2: Minimum Energy Performance
posted by Giuseppina Amorusi on May 4, 2016, 9:11 am

Marcus Sheffer LEED Fellow, 7group / Energy Opportunities LEEDuser Expert 5524 thumbs up May 4, 2016- 10:00 am You may get a response here but you might be better off posting your specific Energy Plus questions on one of these forums. Of course search the archives first before posting. https://unmethours.com/questions/ https://groups.yahoo.com/neo/groups/EnergyPlus_Support/info...

Last reply: Giuseppina Amorusi, May 9, 2016, 6:07 am

Data Center Modeling- LEED CS version 2009

CS-2009 EAp2: Minimum Energy Performance
posted by Anurag Joshi on Apr 20, 2016, 11:01 am

Dear fellow modelers,

I have a query regarding modeling and saving percentage calculation for datacenter buildings for LEED CS -2009.

I have modeled the datacenter building with...

Last reply: Marcus Sheffer, May 4, 2016, 12:24 pm

Automatic sliding doors in 90.1-2007 and LEED 3.0 Projects

CS-2009 EAp2: Minimum Energy Performance
posted by Paul Deinhofer on May 3, 2016, 4:42 am

I am working on project whereat a big retail store wants to use automatic sliding doors for their shop entrances.
According to ASHRAE 90.1-2007, 5.4 Mandatory Provisions -> 5.4.3 Air...

Last reply: Marcus Sheffer, May 4, 2016, 11:23 am

Existing Insulated Glass Units

CS-2009 EAp2: Minimum Energy Performance
posted by Donald Green on Apr 29, 2016, 1:06 pm

We have an existing building whereby some of the existing glass will remain however we cannot determine what the thermal properties of the glass is because there is no documentation and the...

Last reply: Marcus Sheffer, Apr 29, 2016, 2:09 pm

DHW Equipment Performance; DES Heating

CS-2009 EAp2: Minimum Energy Performance
posted by Samuel Sura on Mar 12, 2016, 8:17 am

Dear all,

please help me with these questions:

1) I'm not sure how to specify a water heating equipment performance. In many cases the baseline building has to have an electric...

Last reply: Marcus Sheffer, Apr 25, 2016, 12:23 pm

EAp2 Proposed Design

CS-2009 EAp2: Minimum Energy Performance
posted by James Wieben on May 13, 2013, 3:35 pm

I have a CS project in Seattle and would like to use the local energy code as the...

Last reply: Ben Tucker, Apr 11, 2016, 11:41 am

existing building modeling

CS-2009 EAp2: Minimum Energy Performance
posted by Alfonzo Collins on Apr 8, 2016, 3:32 pm

I am modeling an existing building right now. The opaque envelope will be maintained (walls and roof) but the entire inside, all HVAC systems, and windows will be replaced. For the model, I...

Last reply: Marcus Sheffer, Apr 9, 2016, 6:18 pm