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How to calculate capacity for commercial ice makers?

NC-2009 EAc4: Enhanced Refrigerant Management
posted by Lindsay Austrom on Jul 16, 2015, 2:13 pm

I have a project with a commercial kitchen, so we're gathering info on all of the walk-in coolers, freezers, etc. However, I'm not sure how to document the ice maker cooling capacity since they...

Last reply: Lindsay Austrom, Dec 21, 2015, 4:47 pm

EA Credit 4: Enhanced Refrigerant Management

NC-2009 EAc4: Enhanced Refrigerant Management
posted by John Pugh on Jan 5, 2015, 1:18 pm

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.

Last reply: Lindsay Austrom, Dec 21, 2015, 4:07 pm

refrigeration units

NC-2009 EAc4: Enhanced Refrigerant Management
posted by Mehdi Kardehi on Oct 19, 2015, 8:38 am

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...

Last reply: Christopher Schaffner, Dec 17, 2015, 6:57 pm

Screw chillers

NC-2009 EAc4: Enhanced Refrigerant Management
posted by Mehdi Kardehi on Oct 19, 2015, 6:24 am

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...

Last reply: Melissa Kelly, Dec 15, 2015, 3:48 pm

Refrigerant charge above 5.0 lb/ton.

NC-2009 EAc4: Enhanced Refrigerant Management
posted by Keith Robertson on Dec 10, 2015, 10:45 am

The reference guide definition of Rc states "0.5 to 5.0 lbs of refrigerant per ton of gross ARI rated cooling capacity". What do you do for equipment that has a charge of above 5.0 lbs/ton?

Last reply: Melissa Kelly, Dec 15, 2015, 3:36 pm

EAC4 Template Life Cycle

NC-2009 EAc4: Enhanced Refrigerant Management
posted by Jesus Deras on Jan 15, 2014, 5:25 pm

For refrigeration equipment(Freezers/coolers etc etc) what is the life expectancy that should be put into the EAC4 template? The equipment in question are freezers and coolers that are to be...

Last reply: Mehdi Kardehi, Oct 19, 2015, 8:34 am

Using less than 0.5 pounds of refrigerant

NC-2009 EAc4: Enhanced Refrigerant Management
posted by John Lee on Sep 8, 2015, 11:39 am

If I only use HVAC units totally 0.5 lbs of refrigerant on the project, do I qualify for the 2 points in this credit?

If I only use many HVAC units with 0.5 lbs of refrigerant per unit, do...

Last reply: Christopher Schaffner, Sep 14, 2015, 9:58 am

VRF System Rc Value

NC-2009 EAc4: Enhanced Refrigerant Management
posted by SAMY Chamy on Aug 31, 2015, 8:13 am

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"...

Last reply: SAMY Chamy, Sep 3, 2015, 3:12 am

Issue with credit 4 calculator EAC4_DYA

NC-2009 EAc4: Enhanced Refrigerant Management
posted by Mehdi Kardehi on Aug 19, 2015, 2:30 am

Hi All,

I am very new to LEED and trying to apply for it for a project we have in hand. There are some issues with table L-2 of eac4.

Table L-2 of eac4 cannot be filled in manually...

Last reply: Christopher Schaffner, Sep 2, 2015, 5:00 pm

Combining Option 1 and Option 2

NC-2009 EAc4: Enhanced Refrigerant Management
posted by Lyle Axelarris on Jun 18, 2014, 9:55 pm

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....

Last reply: Lyle Axelarris, Aug 28, 2015, 9:50 pm