Adrift in a sea of options? Go with Real Results
from Real Customers!

Below are some accounts from real SubZero Engineering customers. Some are selections from summation and justification reports. Others are feedback from customers regarding the impact good airflow management made on their site.

Testimonial 1 — 20,000 sq. ft. site

As written by Laura Mitchell
Data Center Manager
Dallas, Texas

Our business:

Industry leader in technology

Our data center facility objective:

Reducing our carbon footprint, ONE solution at a time.

Background research included:

Finding quick and easy changes we could implement that would reduce our energy consumption at the Dallas Data Center. Those changes included removing legacy equipment, airflow management and a literal lights-out, when not in use, policy.

The plan:

Implementing Velocity Adjusters to slow down the rate of air coming out of the CRAH units in the raised floor area and Cube cable cutout covers to prevent air from coming through the cable openings of the server racks.

ROI:

Airflow management implementation (covering ~ 14,000 sq ft raised floor space):

Initial Investment:             $ 24,318.00
Cost - Velocity Adjusters:    $ 5,187.67
Cost - Mini Cubes:            +$ 13,703.79
Assets total:                   =$ 18,891.00

78% of the original investment is an asset that can be taken out of the existing facility for re-use!

Increased our supply temperature +8° which reduces the load on the CRAC – running less and longer intervals between runtime.

Case Study 1 — 40,000 sq. ft. site

Schaumburg, Illinois

Completed Items:

• • Under floor CFD (Computational Fluid Dynamics) analysis
• • Perforated tile placement and determined the number of required tiles
• • Installed under floor air velocity adjustors for consistent sub floor air flow
• • Provided The Cube™ Cable Cutout Covers to fill access floor penetrations
• • Simulation for a computer room Phase 2 door installation for DC room segregation and improved airflow distribution
• • CFD simulation for CRAC unit shutdown in key computer room areas (6)
• • Before/After results for rack temps and CFM air flow (reduced DC overall temp by 7 degrees and by 18 degrees in some racks)

Results from remediation activities:

• • Increase DC return temps from 65 to 74 degrees
• • Chilled water temperatures were increased from 40 to 44 degrees
• • Consistent rack temperatures and no hot spots in the data center
• • Cooling short-cycles were eliminated
• • Based on CFD analysis and reduction in rack and overall room temperatures, (6) 15 ton CRAC units were decommissioned with a yearly cost savings of @ $78K