Does anyone have any experience earning compliance with this credit in a Dining Hall application?

Hi! We use a heatpump system, which is used to supply heat as back-up solution.

We have a project that has many commercial refrigeration equipment such as walk-in coolers and feezers in commercial kitchens.

Having built a cafeteria at a local University we are having trouble getting the Q (tons ) for some of the refrigerated display equipment.

Hi In a preliminary design review for our project, the reviewer has asked us to provide supplementary calculations to show the credit compliane.

In the form it was mentioned "Provide supporting documentation for non-default Life value(s) in Table.

Regarding EAc4 equipment life, the reference guide tries to summarize the equipment life by system from the ASHRAE Applications Handbook 2007, but does not accurately represent heat pumps.

We have a project where a Walk-in refrigerator and freezer are planned.

Should we include the manufacturers default information on refrigerant or should we use the actual refrigeration charged installed even though these are not installed and confirmed after installat

I still don't understand how I am supposed to find out or calcuate int Rc? Is this a number you get from the manufacturer?