HVAC, Air Handling and Filtration

Confirm the electrical supply first, since much of this plant runs three phase 400 V while smaller units run single phase 230 V. Then check the duty: motor kW on drives, airflow and pressure on fans, cooling kW on chillers. Ask the seller for the rating plate photograph and run evidence before arranging collection.

Yes. Condensing units, chillers and air conditioners can be traded used, but F-Gas rules govern the refrigerant: recovery before transport and recharge on installation must be done by certificated engineers. Check which refrigerant the unit holds, because phased-down gases cost more to service. Ask the seller for the refrigerant type and charge from the data plate.

Work from the duty, not the machine: the airflow in cubic metres per hour and the pressure the ductwork imposes. A fan quoted on free air delivers less once ducted. For extraction protecting operators, the capture velocity at the hood is what matters. Ask the seller for the fan curve or original specification sheet.

Often, because fans, drives and chillers from a cleared site were usually running until the closure and carry service history. The risk sits in storage condition rather than hours run. Ask how long the machine has stood, whether it was drained and sealed, and whether the seller will demonstrate it under power before purchase.

Portable units and drives travel on a single pallet by courier, while chillers, air handling units and ducted extraction normally go on flatbed transport with forklift loading at the seller's site. Agree lifting responsibilities, access and any decommissioning work in writing with the seller before collection day.