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Example 1: Sealing-off of fire compartments
If a smoke alarm is set off, the fire alarm system interrupts the power supply to the fire
protection actuators. The fire dampers are closed by the spring return mechanism and
the fire compartment is sealed off reliably. Fire and smoke are prevented from spreading
to other parts of the building.
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 | Fire protection and smoke control
actuators for personal protection |
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Sealing-off of fire compartments |
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Example 2: Smoke extraction from fire zones
If smoke is detected in the building, the fire alarm system sets all smoke control
dampers in the fire zone to the «open» position and starts up the smoke extraction fan.
The smoke control dampers in all neighbouring zones remain closed. Toxic fumes are
reliably evacuated.
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| Fire protection and smoke control
actuators for personal protection |
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Smoke extraction from fire zones |
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Example 3: Frost protection in air handling units
If the supply air temperature falls below 3°C, the frost thermostat is tripped. The fans
are switched off, the external air dampers are closed by the spring return actuators
and the valve to the heating coil is positively opened.
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 | Emergency control actuators
for unit protection |
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Frost protection in air handling units |
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Example 4: Emergency control function for humidifiers
In an emergency situation, the hydrostat interrupts the power supply to the valve
actuator. The valve is automatically closed by the built-in spring return mechanism.
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| Emergency control actuators
for unit protection |
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Emergency control function for humidifiers |
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Example 5: Protection against energy losses in boiler sequence systems
The heat generators can be switched on or off as required. To prevent unnecessary
energy losses, they can also be shut off – for example, by means of butterfly valves
motorised with spring return actuators.
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| Emergency control actuators
for unit protection |
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Protection against energy losses in boiler sequence systems |
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Example 6: Unit protection in sensitive working areas
In case of a fault, the SuperCap actuator is opened or closed to a defined position
between 0 and 100%. If the power is only interrupted for a short period, the SuperCap
actuator continues to work normally with its stored energy. Downtimes are avoided
and the fault is handled efficiently by the building management system.
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| Emergency control actuators
for unit protection |
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Unit protection in sensitive working areas |
