Door panels - Inspection Windows
Where frequent access to the internal components of the unit is required, door panels are provided. The construction is similar to the standard fixed panels. The doors are equipped with handles and hinges to permit quick opening and access. The handles are installed on the door panel and are functioning externally, by means of a special latch installed on the profiles. Thus the door panels are positively pressed on the frame and there is no piercing of the door that could create air leakages. Upon request, the handles can be equipped with a key lock, thus avoiding interference with the internal parts of the units by unauthorized persons.
The handlers are made of nylon high quality handle, with or without key, suitable for external use, with die casted extruded epoxy coated aluminum base and latch to ensures superior corrosion resistance against the most aggressive ambient conditions.Upon request, the handles can be equipped with a key lock, thus avoiding interference with the internal parts of the units.
The hinges are made of die casted extruded aluminum epoxy coated to ensures superior corrosion resistamce against the most aggressive ambient conditions. Also upon request a double glazed polycarbonate inspection window can be installed on the doors and other panels. an Internal inspection lamp can be provided to in the fan and filter sections.
Upon request all ducting connectors can be provided with flexible connectons in plasticized fabric with galvanized flanges complete corners holes. The flanges can be made also from Stainless steel SS304 or Ss316.
Mixing Box - Dumpers
The mixing box section single or double is equipped with opposed action dampers of various sizes for the fresh air, return air and exhaust air, that can be linked together or operate independently.
The damper system permits the use of 100% fresh air with 100% exhaust air or, any other percentage combination of fresh /exhaust air. Dampers are opposed action, activated by means of special tooth-gear, made of glass-reinforced nylon, having high mechanical strength and limitless life duration.
Blade bearings are of the same material and no lubrication is required. Operation is simple, smooth and precise, permitting linear regulation. Damper blades are made of aluminum extrusion aerofoil shape and incorporate «Neoprene» gaskets to the edges and ends to maintain tight closure in closed position. Links and provided for either manual or motorized operation.