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refrigeration units

NC-2009 EAc4:Enhanced Refrigerant Management
posted by  Mehdi Kardehi  on 

Hi, In our project there are couple of cool rooms/freezers using reciprocating compressors. Shall we list it as reciprocating compressor or we need to select other and type in refrigeration units

1
Thu Dec 17, 2015, 11:57 pm

dedicated load from a central plant

NC-2009 EAc4:Enhanced Refrigerant Management
posted by  Bethany Beers  on 

Hello, We were previously unable to achieve this credit for a project receiving chilled water from a campus central plant employing 4 electric centrifugal chillers and 3 heat recovery chillers.

3
Representative
Vermont House of Representatives
LEEDuser Expert
7780 thumbs up
Tue Jun 6, 2017, 1:15 pm

How to calculate capacity for commercial ice makers?

NC-2009 EAc4:Enhanced Refrigerant Management
posted by  Lindsay Austrom  on 

I have a project with a commercial kitchen, so we're gathering info on all of the walk-in coolers, freezers, etc.

3
Mechanical Engineer
Hyder Consulting
LEEDuser Basic Member
1 thumbs up
Mon Dec 21, 2015, 9:47 pm

EA Credit 4: Enhanced Refrigerant Management

NC-2009 EAc4:Enhanced Refrigerant Management
posted by  John Pugh  on 

Hello, Was just wondering if someone could shed some light on the Refrigerant Charge and how I go about finding it? I am using R-410A as the refrigerant. Thanks.

3
Sr. Sustainability Consultant
Taitem Engineering
LEEDuser Basic Member
36 thumbs up
Mon Dec 21, 2015, 9:07 pm

Screw chillers

NC-2009 EAc4:Enhanced Refrigerant Management
posted by  Mehdi Kardehi  on 

Hi , There is no mention of screw chillers either under the credit EA 4 or ASHRAE application. I can only see absorption, scroll and reciprocating. Can someone please help me with the life span to

1
Sustainability Specialist
Gensler
LEEDuser Basic Member
66 thumbs up
Tue Dec 15, 2015, 8:48 pm

EAC4 Template Life Cycle

NC-2009 EAc4:Enhanced Refrigerant Management
posted by  Jesus Deras  on 

For refrigeration equipment(Freezers/coolers etc etc) what is the life expectancy that should be put into the EAC4 template?

2
Sustainability Manager
YR&G
LEEDuser Basic Member
55 thumbs up
Mon Oct 19, 2015, 12:34 pm

VRF System Rc Value

NC-2009 EAc4:Enhanced Refrigerant Management
posted by  SAMY Chamy  on 

we use VRF system for A/c we use value given in LEED guide Rc 2.2 lb/ton As per the the default calculation we get points but the reviewer tells Rc for VRF is very low it may be "3 - 6" lb/ton

3
Thu Sep 3, 2015, 7:12 am

Combining Option 1 and Option 2

NC-2009 EAc4:Enhanced Refrigerant Management
posted by  Lyle Axelarris  on 

Has anyone had any experience combining the approaches in Option 1 and Option 2 to achieve this credit? We plan to use economizer cooling for most of our cooling needs.

7
LEED Services Director
Group14 Engineering, Inc.
LEEDuser Premium Member
47 thumbs up
Sat Aug 29, 2015, 1:50 am

Upload requirements for EA Cr 4: Enhanced Refrigerant Management

NC-2009 EAc4:Enhanced Refrigerant Management
posted by  Kathy Wislocky  on 

Hi, I'm hoping to get some feedback on what is actually required to be uploaded in support of table 4-1.

4
Fri Jun 26, 2015, 2:13 am

Refrigerant HFO 1234

NC-2009 EAc4:Enhanced Refrigerant Management
posted by  CT G  on 

Hi all, Is it possible to use the refrigerant R-1234 (HFO) to replace the R-134 in a centrifugal chiller? It has low GWP (around 4 or 5) and zero ODP, but it is not in the LEED online form nor in

2
Default Avatar
LEEDuser Premium Member
19 thumbs up
Thu Jun 25, 2015, 12:58 pm