E39: Improved Cooling System for Cold Storage – Above Green

Requirement Summary

This measure can be claimed if the project includes an improved efficiency system for cold storage, such as an air-cooled screw chiller with a higher COP. The actual COP of the system must be entered in the software. Savings can be achieved if the cooling system is an air-cooled chiller and achieves a Coefficient of Performance (COP) greater than the baseline case under ARI conditions.

Intention, Approach/Methodologies, Potential Technologies/Strategies, Relationship to Other Measures, Assumptions

For details on the measure under these headings, see the similar measure description for air conditioning with air cooled chiller previously described in this user guide (measure E13).

Compliance Guidance

To demonstrate compliance, the design team must describe the specified system and provide documentation to support the claims.

Design Stage

Post-Construction Stage

At the design stage, the following must be used to demonstrate compliance:

Mechanical layout drawings showing the location of the external and internal units; and
Equipment Schedule or Manufacturer’s data sheets (with the project specific info highlighted & noted) for the air-cooled system specifying COP information; and
Average COP calculation for systems including more than one type of unit.

At the post-construction stage, the following must be used to demonstrate compliance:

As-built mechanical drawings with air conditioning schematics; and
Delivery notes showing that the specified cooling system has been delivered to the site; and
Manufacturer’s data sheets for the air-cooled system specifying the COP information; and
Photographs of installed external and internal air conditioning units; and/or
Contract with the management company if the system is centralized or off-site.