Bypass airflow at the rack level refers to any supply air that passes through open U spaces or around IT equipment and returns to the cooling unit without ever passing through the servers. While open U spaces are commonly addressed with bl. Bypass airflow at the rack level refers to any supply air that passes through open U spaces or around IT equipment and returns to the cooling unit without ever passing through the servers. While open U spaces are commonly addressed with blanking panels, the gaps between the edge of the IT cabinet and the server rails are commonly overlooked. In a t. Installing blanking panels is a common best practice to seal open U spaces within the rack. While less common but just as important, installing air dam kits such as our HotLok® Rack Airflow Management (RAM) kitaddresses the gaps between the sides of cabinets and server rails. Making these improvements addresses these problem areas to effectively se. Recently, a Fortune 50 US-based Commercial Bank in Japan trimmed an equivalent of 5.5% of their annual energy costs with an initiative that simply improved airflow management inside the data center equipment cabinets using HotLok® products. Their computer room had 270 kW of IT load but was running 450 kW of CRAH capacity. This attempt to avoid hots. In addition to the $26,000 annual direct savings, indirect savings resulted from improved chilled water system efficiency, increased life span for all cooling units, and reduced maintenance. Furthermore, there will be additional savings from deferred capital expenditure for additional cooling units that would have been required to support additiona.
