7 Aircon Checks at Office Fit-Out Handover

Compare the completed room layout with the supply grilles and return paths. Doors, display walls and full-height partitions can separate a room from the airflow assumed in the original design.

An office warm after partition case traced the fault to a blocked supply path. A separate return air blocked case shows why both sides of the airflow loop need checking.

Operate each controller and record which unit, damper or zone responds. Confirm schedules, setpoints and any central override against the agreed operating plan.

A controller response proves communication at that moment. It does not prove sensor accuracy or long-term control stability.

A warm meeting room after a fit-out case shows why the zone map matters more than the controller. The room had walls added late and kept the control zone it had when the floor was open, so its unit obeyed a sensor in another space and never measured the room itself. Confirm every enclosed room is controlled by a sensor inside it before occupation.

Cassette and concealed units may rely on pumps and float switches. Witness pump operation, tray clearing and the visible outlet where available.

A pump float stuck case shows that a pump can run on command yet fail to start automatically. The handover check should distinguish pump response from automatic water-level control.

Service work adds its own drainage risks. A tray flush requires the outlet joint to come apart, and a joint pushed back without being tightened can hold its shape briefly and then drip onto the ceiling below. A relocation can kink a flexible drain hose so the bore closes and water backs up slowly. Where the works opened a drain, witness the joint and the full run before sign-off.

Confirm that filters, drain pumps, control boards, valves and dampers can be reached after all ceiling panels, cabinets and signage are installed. Mark access panels on the final drawing.

A neglected ceiling filter case shows how a hidden return filter can escape routine servicing. It supports visible access and labelling, not a promise that every future fault will be easy to reach.

A control screen can show a zone opening while the mechanical linkage remains closed or moves the wrong branch. Observe airflow response and accessible damper movement where the commissioning scope allows.

A damper actuator slipped on shaft case shows why motor movement alone is incomplete evidence. The test must confirm that movement reaches the blade.

Relocation adds a failure that no label check catches: dampers are commonly closed while work is in progress and reopened as a separate step at the end. One office zone stayed warm because that step was missed, with nothing on the controls to show it. Keep a written list of every damper closed during the works and confirm each is open at handover.

Run the planned occupied zones with normal lighting and major equipment represented where practical. Note rooms with strong afternoon exposure or operating hours that differ from the rest of the office.

A condenser heat trapped case appeared under afternoon office load. It shows why an empty morning test cannot establish every operating condition.

Test at the speeds and loads the office will actually use. A duct clamp left slightly loose stays silent at low flow and whistles once demand rises, so a quiet low-speed test proves less than it appears to.

Keep final model details, zone names, controller mapping, settings, observed test results, unresolved defects and the party responsible for each follow-up. Store the final drawings with the handover record.

A clear record helps the facilities team run the system. A contract or approval may require a set format. Otherwise, it is not a universal certificate from an authority.