... control Filter monitor Free cooling unit, free air, Free cooling box, free air, free cooling unit FUNCTIONFCB-03D is a ... component life..STANDARD FEATURES CabinetFCB-03D is a compact free air cooler complete with filter, digital controller and energy effective ... Self test function.TECHNICAL DATA VersionUnitFCB-03D-01FCB-03D-02Maximum air flowm³/h27902450Cooling capacity at t=4°CkW3.693.25Cooling ...