L1–L5 commissioning
Data center infrastructure validation
From factory acceptance to integrated systems testing, MCC helps verify requirements, document results and address open issues.
Explore the five phases
Mission Critical Consult
Engineering for
critical infrastructure
L1–L5 data center commissioning and technical consulting for new facilities, expansions and live operations.
Technical services
From design to operations
We help verify facility performance, improve thermal and energy performance, and prepare the teams that keep data centers running.
Retrocommissioning
Assessment of existing facilities to identify deviations, prioritize adjustments and verify improvements under operating conditions.
Energy efficiency
Studies, analysis and design support to assess thermal performance, energy use and opportunities for improvement.
Liquid cooling
Consulting on cooling alternatives, infrastructure readiness and the transition to liquid or hybrid systems.
Technical and operational audits
Review of processes, procedures and records to identify deviations and guide corrective action based on evidence.
Certification gap analysis
Assessment against applicable requirements, collection of evidence and an action plan to prepare the facility or its operations for certification.
Specialized training
Tailored training in operations, cooling and reliability, including technical courses on liquid cooling.
Explore the trainingCommissioning
L1 to L5
Each phase verifies a different aspect of the facility. The results help determine when equipment and systems are ready for the next stage.
Discuss your scopeL1Factory testing
Verification that equipment meets the specified requirements before shipment. This can include reviewing or witnessing factory acceptance tests (FAT), depending on the scope.
L2Receiving and installation
Checks on delivery condition, field installation and installation records. Any deviations are documented for follow-up.
L3Pre-functional checks and startup
Verification that equipment and subsystems are ready for operation, including review of the startup records required by the project plan.
L4Functional performance testing
Assessment of each system's performance in the specified operating modes, with documented results and retesting as applicable.
L5Integrated systems testing
Integrated systems testing (IST) to verify how the infrastructure operates as a whole under defined scenarios, including anticipated failures and recovery.
Acceptance criteria and the allocation of activities follow each project's commissioning plan.
Clients who trust our services
About MCC
Experience operating critical facilities
Mission Critical Consult brings together experience in operations, maintenance, reliability and training. The company was founded by Alexandre Kontoyanis, who holds a mechanical engineering degree from UnB and an MBA in Project Management from FGV.
At Conbras/Grupo GPS, Alexandre oversaw the operation of eight Banco do Brasil data centers. His experience includes teaching operations and cooling at DCD>Academy and serving as an ASHRAE Distinguished Lecturer.
ASHRAE professional profile
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Let's talk about your data center
Tell us where your project stands, which systems are in scope and what your team needs to assess.