Natural & Smoke Ventilation Actuators
Natural ventilation has become an increasingly attractive method for reducing energy use and cost whilst providing acceptable indoor environmental quality and maintaining a healthy, comfortable, and productive indoor climate rather than the more prevailing approach of using air conditioning which in turn fails to reduce carbon emissions.
Natural ventilation, unlike fan-forced ventilation and air conditioning, uses the natural forces of wind and buoyancy to deliver fresh air into buildings. Fresh air is required in buildings to alleviate odours, to provide oxygen for respiration, and to increase thermal comfort.
Smoke Ventilation (EN 12101-2)
The purpose of smoke and heat exhaust ventilation (SHEV) systems is to lead smoke and heat out of a burning building, whilst keeping escape corridors and stairs free of smoke for the escape of the buildings occupants, and, to allow access for fire fighters.
Natural smoke ventilation relies on the buoyancy of hot gases. As smoke rises, it can be exhausted from the building by opening vents automatically. The risk of rising smoke, toxic gases and heat exhaust is drawn off into the open through the smoke vents, so that escape and rescue routes remain passable.
The receiver immediately enters maintained mode and the intermediate position is adjustable.
In addition, the user can switch between manual and automatic operation.
It can be used both unidirectionally and bidirectionally and can control one or more receivers.
In case of smoke alarm the controller will signal the drives to open in order to release the smoke. Rain and wind sensor can also be used for Natural Ventilation.
Double Push Button
Flush-mounted double push button for all actuators with 3 wire operation.
The thermostat has priority over manual control. If the temperature is higher to the set one, the windows open, if lower, the windows close. The thermostat can also be disabled.
WS Wind Detector
It emits a variable signal according to the wind intensity and acts on the control panel as the rain sensor does. It is possible to choose closing at different wind speeds.
RS Rain Sensor
Fire Smoke Damper Actuator
The actuator motorises the damper when power is on and springs back to its original position when power is cut off.