Louvers are made of aluminum profile. The dampers can be mounted inside, or outside of the section. The frame around the perimeter of the damper is made of galvanized steel. The rotation is provided by cog wheels, made of polycarbonate. To be protected against external environmental influence, the wheels are set inside of a frame. Square rod is provided for automatic actuator mounting. If damper height is more than 1200 mm, two rods should be used. Air tightness class is 3, according to EN 1751.
OPTION: THE «NORTHERN» EXECUTION For the regions with the outside air temperature -40 °C, the dampers are supplied with an electric heater between the blades. Heating protects blades and cog wheels from icing.
RECOMMENDED ACCESSORIES – ELECTRIC ACTUATORS: Two-position control (ON/OFF) or smooth opening regulation from 0 to 100 % on signal 0...10 V from the automation system. Actuator with a return spring closes the damper when power supply is off.
|FLEXIBLE ANTI-VIBRATION INSERT
Flexible connectors are two flanges interconnected by an antvibration element. The inserts are made of galvanized steel and polyethylene tape, reinforced with polyamide fiber.
APPLICATION: In unit and air ducts connections to reduce vibration in the air ducts.
|PRESSURE SWITCH DTV 500
Pressure differential switch indicates an error in case of clogging of air filters, breaking of belts in centrifugal fans, low air flow through electric heaters, etc.
|THERMAL SWITCH F3000
Duct thermostat indicates the threat of freezing of unit elements, such as plate heat exchanger, liquid heating coil, etc.
|VARIABLE FREQUENCY DRIVE
Inverters provide smooth regulation, soft start, and active overheating protection of asynchronous fan motors. Inverters can be supplied loose or mounted inside the fan section. It is recommended to use VFD for both belt driven and direct driven free pressure plug fans.
|WATER MIXING SET WMG|
|WMG selection chart|