AOV Switch Inside - Safety Signs by Caledonia Signs

Indicate the location of the Automatic Opening Vent (AOV) control switch, which is critical for managing smoke and heat in a building during a fire. The AOV system helps to release smoke, reduce heat accumulation, and maintain safer evacuation routes. The sign ensures that authorised personnel and emergency responders can quickly locate the switch to operate the system manually if necessary, supporting effective fire management.

The sign serves as a constant visual guide to prevent delays in operating the AOV system. In an emergency, any hesitation or confusion about the switch’s location can compromise smoke control, reduce visibility, and increase risks to occupants and property. By clearly marking where the control switch is located, the sign helps trained staff act promptly to activate or override the vent system.

AOV Switch Inside signs are typically placed in areas where the control switch is installed, such as plant rooms, corridors, or accessible compartments within commercial buildings, warehouses, schools, hospitals, shopping centres, or multi-storey buildings. Placement should ensure that the sign is immediately visible to authorised personnel while remaining secure from accidental tampering or obstruction.

Using this sign reinforces fire safety awareness and promotes proper emergency procedures. It communicates that the AOV switch is an important operational point in the smoke ventilation system and that only trained individuals should use it. By guiding staff to the switch quickly, the sign helps ensure effective smoke management, supports safe evacuation, and enhances overall emergency preparedness in the building.

Materials Explained

Below is a more detailed description of the materials this particular safety sign is available in. Helping you decide which sign option is most suitable for your application.

Rigid Plastic: This lightweight, gloss white PVC is resistant to weather, moisture, chemicals, and general wear and tear, making it suitable for harsh environments. Its smooth, solid surface allows for crisp printing of text and graphics, enhancing readability and visual impact. Businesses who choose Rigid Plastic signs benefit from fewer replacements and minimal maintenance, making it a practical investment for reliable and effective safety signs.

Self-Adhesive Vinyl: Self-adhesive vinyl is easy to apply and it is budget-friendly. Its adhesive backing allows for easy application to a variety of surfaces such as glass, metal, plastic, and painted walls, which simplifies installation and reduces setup time. Self-adhesive vinyl provides a clean, professional finish that suits many indoor environments including offices, retail, industrial sites, and vehicles. It is more affordable than many other material types and allows for custom shapes, colours, and graphics.

To achieve high performance in low light conditions and conform to ISO 16069 we recommend using Ultra Bright.

Ultra Bright Photoluminescent Rigid Plastic: Ultra Bright rigid plastic has a photoluminescent (glow in the dark) pigmentation which offers a highly effective, reliable, and energy-free visibility in low-light or blackout conditions, making them ideal for emergency exit applications. The afterglow properties exceed PSPA Class C grade, as measured to DIN 6751, provides razor sharp definition in blackout conditions.

Ultra Bright Photoluminescent Self Adhesive: Ultra Bright self adhesive vinyl is a flexible PVC with photoluminescent (glow in the dark) pigmentation. The self-adhesive backing enables quick, tool-free application on smooth, clean surfaces like walls and doors. The afterglow properties exceed PSPA Class C grade, as measured to DIN 6751, provides razor sharp definition in blackout conditions, making them ideal for emergency escape applications.