Pearl Building Rating System - Estidama

RE-7: Global Warming Impacts of Refrigerants
& Fire Suppression Systems
Intent To promote the selection of refrigerants and fire suppression systems that minimise
impacts on the environment.
Credit
Requirements
GENERAL
Refrigerants
� 1 Credit Point: Demonstrate that the weighted average of all refrigerants to be
installed within the project has an equivalent Global Warming Potential (GWP) of 10
or less.
Refrigerant Leak Detection
� 1 Credit Point: Demonstrate that the project has installed a permanent refrigerant
leak detection system.
Refrigerant Pump Down
� 1 Credit Point: Demonstrate that the project has installed an automatic refrigerant
pump down system to a dedicated storage tank with isolation valves.
Fire Suppression Systems
� 1 Credit Point: Demonstrate that all gaseous fire suppression systems have a GWP of
1 or less.
Note:
� Where the total collective mass of refrigerant charge used in the project (including
any charge associated with district cooling) is less than 5kg, 1 credit point for
Refrigerants shall be awarded automatically.
� Where only individual units containing less than 5kg of refrigerant are used,
Refrigerant Leak Detection and Refrigerant Pump Down systems are not required, and
those credit points shall be awarded automatically.
� For projects served via district cooling (DC) systems, the points shall only be awarded
if the DC system also complies with the requirements for Refrigerants, Refrigerant
Leak Detection and Refrigerant Pump Down.
� Where no gaseous fire suppression systems are used in the project, the credit point
for Fire Suppression Systems shall be awarded automatically.
ADDITIONAL REQUIREMENT/CLARIFICATIONS
None
Pearl Building Rating System: Design & Construction, Version 1.0, April 2010 166 of 223