Telecom Central Office Cuts Cost Without Disrupting Operations
tekWorx adaptive Control Engine Optimization® solution slashed chilled water costs and added redundancy to this mission critical facility with no downtime.
Facility Bio
- Pittsburgh, PA
- High traffic, downtown Central Office
- 550,000 ft² downtown facility totaling 20 floors
- Three (3) McQuay constant speed chillers
- 4,500 tons cooling capacity
- Mission critical, 24/7 operations
Situation
- Major upgrade to chiller plant infrastructure
- Upgrade could not disrupt Central Office traffic
- Inadequate control redundancy for critical operation
- Low ΔT and high kW/ton due to inefficient hydronic configuration and control sequence
Solution
- Convert hydronic system to Variable-Primary configuration
- Install redundant PLC-based Control Engine Optimization system(CEO®)
- Integrate CEO® with Metasys building automation system
Results That Exceed Client Expectations
Financial Savings
- $85,000 in annual energy savings
- 2.3-year payback
Energy Impact
- 1.3 million kWh saved annually
- .36 kW/ton efficiency improvement
Operational Benefits
- Control system upgraded to N+1 redundancy standard
- Reduced troubleshooting response time
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