Air extractors with single or double sandwich panelling in polyurethane foam of thickness 25 mm, designed for installation in false ceilings or in duty rooms. Air deliveries from 1.000 to 15.000 m3/h.
The extractors series ESA C are manufactured in 2 models having a low weight and easy inspection and are usually installed in false ceiling. The maximum duty temperature is 40° C.
These extractors are manufactured with bearing framework and galvanized single skin steel sheet. The frame is made of extruded anticorodal aluminium alloy profiles, usually of type AlMgSi 0,5- UNI 9006/1 of dimensions 20 x 18 mm for both sizes, using 3-way corners made of die-cast aluminium.
The paneling is single skin type, made of galvanized steel hot type Fe P02 GZ 140 UNI EN 10142 with galvanization not less than 140 g/m2, fastened to the frame with galvanized steel screws. The inside is made of self-extinguishing open cell polyurethane foam with polyester base, thickness 20 mm, coupled on air side to a closed cell embossed polyester film which is antiscaling type and water, oils, dust proof: – density of insulating material: 30 Kg/m3.
The casing of the extraction units is completely closed, therefore any panel can be holed for the installation of a return grid, a damper or the connection to a duct. The inspection of the motor-fan set is assured by removable panels.
The extraction units that have to be installed outside or anyway exposed to weathering are supplied with covering roof, as accessory element. The roof is made of flat hot dipped galvanized. On these units the roof is supplied already mounted and fastened to the casing.
Fan and motor
ESA C/1 The fan-motor set is composed by a double inlet centrifugal fan with forward curved blades, directly coupled to the motor. The construction foresees galvanized steel sheet containing frame and long life (minimum 20.000 hours in normal working conditions) ball bearings. The motor used is: – 6 poles, three speeds – monophasic type 230 v / 50 Hz Eurotension – capacity: 147 W. The connecting terminal block is placed on the fan set. The removal of the fan-motor set can be made from any panel of the unit.
ESA C/2 The fan-motor set is composed by a twin double inlet centrifugal fan, made of galvanized steel sheet frame and two scrolls directly coupled to the motor. The motor used is: – 6 poles, three speeds – monophasic type 230 v / 50 Hz Eurotension – capacity: 184 W. The connecting terminal block is placed on the fan set. The removal of the fan-motor set can be made only from the bottom or top panel of the unit.