Chiller Replacement Programme
Replacement of 18 chiller units across three live operational sites, incorporating a revised cooling strategy and zero impact to operations.
18 Chiller Units Replaced Across Three Live Sites
Pelham were engaged by a large UK data centre operator to deliver the replacement of 18 chiller units across three fully operational live sites.
The scope extended beyond a like-for-like replacement and included the development of a revised cooling strategy, incorporating higher chilled water setpoints, optimisation of plant configuration, and recommendations for associated infrastructure upgrades to improve system resilience and energy performance.
| Client | Confidential |
| Location | UK (3 Sites) |
| Project Type | Chiller Replacement Programme |
| Services | Technical Design, Procurement, Project Management, Installation |
| Units | 18 Chiller Units |
| Status | Completed |
What Pelham Delivered
Technical Design & Assessment
In-house technical design team undertook detailed assessments of load profiles, redundancy requirements, and acoustic constraints across all three sites.
Revised Cooling Strategy
Development of an updated cooling strategy incorporating higher chilled water setpoints and optimised plant configuration to improve energy performance.
Chiller Selection & Evaluation
Industry-leading chiller solutions evaluated to ensure accurate capacity matching, compliance with site noise limits, and compatibility with existing systems.
Competitive Tender Management
A structured competitive tender process managed to appoint the most suitable chiller supplier, ensuring best value and technical fit.
Project Management & Coordination
Full coordination of design development, procurement, and installation interfaces across three sites to enable a controlled and phased rollout.
Live Environment Delivery
All 18 units replaced across fully operational live sites with no impact to live operations, maintaining resilience and service continuity throughout.
Complex Replacement in Live Operational Environments
Replacing 18 chiller units across three simultaneously operational data centres required meticulous planning to ensure no disruption to live services while delivering meaningful improvements in cooling strategy and energy efficiency.
- Replacement across three fully live sites with continuous operational uptime requirements
- Scope exceeded like-for-like — requiring a revised cooling strategy and updated infrastructure recommendations
- Detailed load profile, redundancy, and acoustic constraint assessments required per site
- Coordination of design, procurement, and installation interfaces across multiple locations
- Compliance with site-specific noise limits and integration with existing mechanical and control systems
How We Delivered It
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