Work sequence
Commissioning work sequence
Commissioning proves that installed systems work together under realistic operating conditions. It should be planned as evidence-based testing, not as a last-day defect hunt.
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Connected product pages
This sequence is connected to the stage calculator, checklist and mistake-cost pages so planning, execution and cost risk stay in one system.
Recommended sequence of work
01 Prepare test plan and readiness checklist
Define what will be tested, by whom and against which acceptance criteria.
- List systems, equipment, rooms, zones and required test records.
- Confirm power, water, drainage, access, controls and safety conditions.
- Close obvious installation defects before formal testing starts.
Hold point: Functional testing should not start until readiness checklist and test forms are prepared.
Tools, equipment and access: Test plan, Commissioning forms, Equipment schedule, Access keys
02 Run functional tests and balancing
Verify actual performance instead of visual completion.
- Test pumps, drainage, pressure, electrical loads, controls and safety shutoffs.
- Measure airflow, temperature response, condensate removal and equipment noise.
- Record failed tests with owner, cause, correction and retest date.
Hold point: Systems should not be accepted until failed tests are corrected and retested.
Tools, equipment and access: Pressure gauge, Clamp meter, Anemometer, Thermometer, Sound meter
03 Compile evidence and release for handover
Convert tests into records the owner can use later.
- Collect signed test sheets, photos, balancing results and equipment data.
- Update defect list with remaining items and acceptance status.
- Transfer commissioning evidence into the handover pack.
Hold point: Handover should not proceed until test evidence, retest results and open defects are clearly separated.
Tools, equipment and access: Document register, Photo log, Defect tracker, Asset schedule
Tools, equipment and access
Test instruments
- Pressure gauge
- Clamp meter
- Anemometer
- Thermometer
- Sound meter
Records
- Commissioning forms
- Defect tracker
- Photo log
- Asset schedule
Access and controls
- Access keys
- Control app
- Panel schedule
- Valve tags
Planning material consumption norms
Consumption ranges are planning benchmarks. Final quantities must be checked against drawings, specifications, local codes and supplier data sheets.
| Material or resource | Basis | Planning range | Unit | Planning note |
| Commissioning forms | System group | 1 | form/group | Separate HVAC, plumbing, electrical, pumps and controls. |
| Airflow readings | Diffuser or grille | 1 | reading/terminal | Needed for balancing evidence. |
| Pressure test record | Pressure zone | 1 | record/zone | Attach instrument value, duration and pass/fail. |
| Retest record | Failed test item | 1 | record/item | Makes defects auditable. |
Quality gates before moving forward
- Readiness checklist is complete before testing.
- Functional tests include measurable acceptance criteria.
- Failed items have correction and retest evidence.
- Commissioning pack is ready before handover.
Related glossary terms
Integrated testing and handover readiness checks.
Measurement and adjustment of air volumes so a ventilation system performs as intended.
A quality control plan that lists inspections, tests, acceptance criteria, hold points and required records for a work package.
Final record set showing what was actually installed, routed, adjusted, and handed over on site.
Practical measure of how healthy, comfortable, and usable indoor air feels for occupants.