Walk the scope in sequence

1. Identify: match each installed unit, controller and grille to the agreed room and model schedule.

2. Inspect access and routes: locate service hatches, drainage connections and any areas still hidden by finishes.

3. Record connections: ask which power, controls, pipework and ducts are connected, and who checked each interface.

4. Witness applicable checks: request the test record and operating modes specified for the installed system and manufacturer; note what could not be tested.

5. Close or assign: log every open item with an owner and the evidence needed for closure.

The Victory Heights record (15994, 16477 and 16607) states that eight units had been pressure tested and seven indoor units connected to power and controls at one stage. Start-up, drainage and grille checks remained open. That is a useful example of a stage record, not proof of whole-system commissioning. At Burj Khalifa, two FCUs were connected while one was operating at the recorded check (4725). The difference matters when signing acceptance.

Keep a useful handover pack

Request the equipment schedule, model documents, drawings or marked changes, test notes, control instructions and a defects list. For each item, capture the room, observed condition, date and agreed next action. If an electrical supply, finished ceiling or building access is pending, write down the dependency. Only mark the relevant stage complete when its recorded checks match the agreed scope; do not substitute a single site photo for commissioning evidence.