Smoke Vents
Choose your option
Choose your option
Choose your option
Choose your option
Choose your option
Choose your option
Choose your option
AOV Control Panels
Single and multi-zone controls for smoke ventilation systems.
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24V DC |
24V DC |
24V DC |
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1 |
1 |
1 |
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5 Amp |
8 Amp |
4 Amp |
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Yes |
Yes |
No |
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72 Hours |
72 Hours |
72 Hours |
Common Questions About Smoke Ventilation Systems
What is the purpose of a smoke ventilation system?
What is the purpose of a smoke ventilation system?
The primary purpose of a smoke ventilation system is to protect building occupants and firefighters by removing smoke and heat during a fire. This maintains visibility and breathable air, allowing more time for safe evacuation. Smoke ventilation also helps firefighters locate the seat of the fire and perform rescue operations.
What are the key components of a typical smoke ventilation system?
What are the key components of a typical smoke ventilation system?
A typical system includes:
- Smoke detectors to activate the system
- Extraction fans to pull out smoke
- Ductwork or shafts to remove smoke
- Vents, windows or doors for makeup air
- Dampers and barriers to control airflow
- Control panels to manage activation and operation
- Emergency power supply for fail-safe operation
How effective are smoke ventilation systems at protecting life safety?
How effective are smoke ventilation systems at protecting life safety?
Studies have shown that smoke ventilation can significantly increase the time available for safe evacuation by maintaining tenable conditions. In some cases, survival times can be extended 10-15 minutes or more compared to buildings without smoke control. However, systems must be properly designed, installed and maintained to be effective.
Are there different types of smoke ventilation systems?
Are there different types of smoke ventilation systems?
- Natural ventilation, which utilises smoke vents and exterior walls
- Mechanical extraction, employing fans and ductwork
- Pressurisation systems, which serve to prevent the spread of smoke
- Zoned or compartmentalised systems, designed for large buildings
- Atrium exhaust systems, intended for multi-storey spaces
What are common design challenges with smoke ventilation?
What are common design challenges with smoke ventilation?
- Coordinating with other systems like sprinklers, alarms and HVAC
- Dealing with stack effect and temperature variations in tall buildings
- Providing reliable emergency power and control
- Zoning and compartmentation in complex geometries
- Integrating with architectural features like atriums and skylights
- Accommodating flexibly partitioned spaces
- CFD modeling is increasingly used to evaluate design options and optimise performance
How can smoke control systems be optimised for energy efficiency?
How can smoke control systems be optimised for energy efficiency?
Some strategies to improve smoke ventilation sustainability include:
- Providing variable speed drives on extract fans for testing
- Utilising motorised dampers to seal ventilation shafts when inactive
- Specifying high-efficiency fan motors and low-leakage ductwork
- Incorporating heat recovery from exhaust air, if feasible
- Right-sizing generators to reduce oversizing and fuel consumption
- Designing zoning to minimise excess volume and capacities
- Integrating control with building automation systems
- Considering dual-use of components for normal ventilation
- Energy modelling can quantify potential savings and help achieve green building certification
Frequently Asked Questions About Window Actuators
What is a window actuator and how does it work?
What is a window actuator and how does it work?
A window actuator is an electro-mechanical device fitted to a window that enables it to be opened and closed without manual operation. It uses an integrated electric motor and gearing to operate a rigid rod or semi-rigid chain attached to the window sash, allowing the window to be controlled remotely.
What are the benefits of using window actuators?
What are the benefits of using window actuators?
Window actuators offer several key benefits:
- Enable control of hard-to-reach windows and rooflights
- Allow multiple windows to be operated together
- Enable automated natural ventilation to optimize indoor comfort and energy efficiency
- Provide a robust alternative to manual window opening equipment
- Deliver many years of trouble-free operation with compact, aesthetic design
What types of window actuators are available?
What types of window actuators are available?
The most common types are electric chain drive actuators that use 230V AC or 24V DC motors. Other types include spindle (linear) actuators and rack & pinion actuators.
What window types are compatible with actuators?
What window types are compatible with actuators?
Actuators can be fitted to almost all window types including top hung, bottom hung, side hung, center pivot, and sliding sash windows.
How do you select the right actuator for a window?
How do you select the right actuator for a window?
Key factors to consider:
- Required stroke length (opening distance)
- Force needed based on window size, weight & orientation
- Preferred voltage (230V AC or 24V DC)
- Desired functionality (manual or automated control)
- Aesthetics and available bracket options
How are window actuators controlled?
How are window actuators controlled?
Actuators can be controlled manually via wall switches or remote controls, automatically based on timers or sensors, or through a combination of both. In intelligent automated systems, actuators are typically controlled by the building management system (BMS) or dedicated natural ventilation control panels.
Can window actuators be used for smoke ventilation?
Can window actuators be used for smoke ventilation?
Yes, 24V DC actuators are commonly used in smoke ventilation systems. However, they must be properly tested and certified as part of a complete smoke ventilation system to meet strict regulations.