Skip to content
Specialist PracticeASHRAE Guideline 0Levels 1–5 Cx

Data Center Commissioning & QA/QC Services

Independent commissioning and QA/QC support for hyperscale, colocation and enterprise data centers — owner-side oversight through factory acceptance testing, Levels 1 to 5 commissioning, deficiency closure and a turnover package that stands up at tenant acceptance.

Overview

What is data center commissioning?

Data center commissioning is the structured, staged verification that electrical, mechanical, controls and life-safety systems perform together as the design intended — executed in five levels, from factory testing of individual equipment through integrated systems testing of the whole facility under simulated load and failure.

Jags Assurance works owner-side. We build the schedule of quality events into the master schedule rather than bolting it on at 80% complete, write and administer the Inspection and Test Plans that govern site work, witness factory acceptance tests at OEM works before equipment ships, and verify each commissioning level is complete and signed before the next one starts. Deficiencies are logged, tracked and re-verified, and every ITP row resolves to indexed, retrievable evidence in the turnover package. Because we are contracted by the owner and do not build or install what we verify, the acceptance record is independent.

Delivered against ASHRAE Guideline 0 for the commissioning process, NFPA 70B/70E for electrical testing and safe work, NETA ATS for acceptance testing of electrical power equipment, and the owner’s design intent, basis of design and tenant acceptance criteria.

What’s included

Scope you can rely on.

Element · L1

Factory Testing & Witness

Factory acceptance testing of generators, UPS, switchgear, chillers and CRAH/CRAC units witnessed at the OEM works, with punch items closed before equipment ships.

Element · L2

Delivery & Installation Verification

Receipt inspection, damage and completeness checks, and verification that installation matches approved submittals, manufacturer instructions and the issued-for-construction drawings.

Element · L3

Pre-Functional & Start-Up

Static checks, point-to-point verification, megger and NETA acceptance testing, vendor start-up witnessing and pre-functional checklist sign-off ahead of energisation.

Element · L4

Functional Performance Testing

System-by-system functional testing against the sequence of operations — generator load banks, UPS transfer, cooling capacity, BMS and EPMS alarms and setpoints.

Element · L5

Integrated Systems Testing (IST)

Whole-facility failure-mode testing under simulated IT load — utility loss, generator start and transfer, cooling ride-through, black-building restart and pull-the-plug scenarios.

Element · 06

ITPs & Quality Event Schedule

Inspection and Test Plans with hold and witness points mapped into the construction schedule, so quality gates are resourced rather than compressed.

Element · 07

Deficiency & NCR Management

A single deficiency and non-conformance log across trades, with root cause, responsible party, re-test evidence and verified closure before each level gate.

Element · 08

Turnover & Acceptance Documentation

Indexed turnover binders — test records, red-lines, O&M manuals, warranties, training records and as-built system documentation ready for tenant acceptance.

Engagement flow

From design-phase quality planning to tenant acceptance.

Sequenced so each commissioning level is verified complete before the next begins — the only way Level 5 stays a demonstration rather than a discovery exercise.

  1. STEP 01
    Plan the Quality Events

    Design and submittal review, ITP development, and a schedule of quality events written into the master construction schedule with owner hold points fixed.

  2. STEP 02
    Witness at the Works

    Attend factory acceptance testing at OEM facilities for critical power and cooling equipment, close punch items before shipment and verify shipping preservation.

  3. STEP 03
    Verify Levels 2–4

    Installation verification, pre-functional and start-up witnessing, and functional performance testing against the sequence of operations, with sign-off at every gate.

  4. STEP 04
    Run IST & Turn Over

    Level 5 integrated systems testing under simulated load and failure scenarios, deficiency closure, and compilation of the indexed turnover and acceptance package.

Business outcomes

Where the value lands.

  • Equipment defects caught at the factory, not during energisation on site.
  • Each commissioning level signed off before the next starts, so IST demonstrates rather than discovers.
  • A deficiency log closed with evidence, not carried into operations as punch.
  • A turnover package that answers tenant and auditor questions without a document hunt.
What you receive

Deliverables

  • 01Commissioning plan and schedule of quality events
  • 02Inspection and Test Plans with owner hold points
  • 03Factory acceptance test witness reports
  • 04Pre-functional checklists and start-up records
  • 05Functional performance test scripts and results
  • 06Integrated systems testing (IST) scripts, scenarios and results
  • 07Deficiency and non-conformance log with closure evidence
  • 08Indexed turnover binder and acceptance certificate pack
Aligned to
ASHRAE Guideline 0ASHRAE 90.4NFPA 70ENETA ATSUptime Institute TierISO 9001
FAQ

Frequently Asked Questions

Delivered across North America, with India and the UAE coming soon.

What are the five levels of data center commissioning?

Level 1 is factory testing of equipment at the manufacturer’s works. Level 2 is delivery and installation verification against approved submittals. Level 3 is pre-functional checks and vendor start-up, including NETA acceptance testing of electrical equipment. Level 4 is functional performance testing of each system against its sequence of operations. Level 5 is integrated systems testing — the whole facility exercised together under simulated IT load and failure scenarios.

What is the difference between commissioning and QA/QC?

Commissioning verifies that installed systems perform as the design intended, level by level, and is largely a testing activity. QA/QC is the wider assurance layer around it — design and submittal review, Inspection and Test Plans, materials and workmanship inspection, non-conformance control and turnover documentation. Commissioning proves performance; QA/QC proves the work that produced it was controlled and evidenced.

What is integrated systems testing (IST) and why does it fail?

IST is Level 5 — the full facility tested as one system under load banks simulating IT load, with utility failure, generator start and transfer, cooling ride-through and black-building restart scenarios. It fails most often because earlier levels were compressed: pre-functional checks skipped, functional tests run with open deficiencies, or the sequence of operations never fully written. IST should confirm what earlier levels already proved, not discover it.

Should the commissioning agent be contracted by the owner or the general contractor?

By the owner. When the general contractor holds the commissioning contract, the party being tested also pays the party reporting the deficiencies. Owner-contracted commissioning keeps the deficiency log honest and the acceptance defensible to tenants and lenders.

When should commissioning start on a data center project?

In design. The commissioning plan, design intent review and schedule of quality events should be in place before construction starts, with factory witness testing dates fixed against long-lead equipment procurement. Programmes that engage commissioning at 80% construction complete spend Level 5 rewriting Level 3.

Do you witness factory acceptance testing for generators, UPS and switchgear?

Yes. We attend FAT at OEM works for critical power and cooling equipment — verifying the test procedure against the specification, witnessing the tests, recording deviations, and confirming punch items are closed before shipment rather than discovered on site.

Do you support Uptime Institute Tier certification?

We support the quality and commissioning evidence side of it. Tier certification is awarded by Uptime Institute; we are not a certification body. Our role is to make sure the design intent, test scripts, failure-mode results and documentation are complete and consistent before that review, and to run the QA/QC programme the facility is judged against.

What should be in a data center turnover package?

An index that resolves every ITP row to evidence: factory and site test records, pre-functional and functional results, IST scripts and outcomes, NETA reports, deficiency log with closure evidence, red-lined and as-built drawings, O&M manuals, warranty documentation, spare parts lists and operator training records.

Get in touch

Planning commissioning on a data center build?

Send us the facility scope, the delivery programme and your target acceptance date — we’ll come back with a commissioning and QA/QC approach within one business day.

Discuss Your Data Center