S2O

Main features

• Rectangular reinforced sound-attenuating transfer air unit
• Designed for security ventilation, e.g. detention/care rooms
• Robust construction with 2 mm perforation
• Special installation frames included for enhanced security
• Designed according to requirements from the penal service
• Eco-friendly insulation with effective sound attenuation performance
• Fibre protection sleeve OFI-C, available for insulated stud walls.

Description

• S2O (S2Ö) is a wall or ceiling mounted reinforced sound-attenuating transfer air device, designed for installation facilities with security requirements, e.g. cells or detention premises where fixed installation is desired.

• The unit features a robust construction with a solid front plate, complemented by partial 2 mm perforation and is particularly suitable for spaces that require increased security where inmates are left unattended.

• Special mounting frames for security class 1 facilities (SE standard) are included. The product can be installed without mounting frames in security class 2 and 3 facilities.

• The product and mounting frame have rectangular proportions and are installed in a circular opening.

• The unit is designed to meet the recommendations for special facilites according to swedish standards and also corresponds to the penal service design requirements to minimize self-harming behavior.

• For insulated stud walls, the accessory OFI-C (ÖFI-C) is recommended, an elastic wall penetration sleeve for transfer air units that prevents the spread of insulation fibres in air flows. Unlike conventional sheet metal wall penetrations installed for the same purpose, OFI-C does not impair the sound properties of the transfer air device.

• The device is developed as a complement to the existing security range with perforation of 6 mm, e.g. SOD.


Delivery form

• The product is delivered in pairs, excluding installation frames.

• The mounting frames are supplied in pairs for increased security requirements. Installation with the frame is mandatory in order to meet the security requirements for Swedish class 1 facilities. The frame is optional and the product is approved without the frame for class 2 and 3 facilites,

 

Product sizes (mm)

Designation | Front panel (nom W x H) | hole dimension (Ø125 mm)

S2O-300 | 460 x 237 | 1 x Ø125 mm
S2O-550 | 710 x 237 | 2 x Ø125 mm

 

Colours

• Powder coated, white RAL 9003 (standard)
• The product can be supplied in alternative colours on special order.

 

Accessories

• OFI-C (ÖFI-C): Fibre blocker for transfer air units that prevents the spread of insulation fibres in air flows.

– Elastic wall penetration sleeve for transfer air units mounted in insulated stud walls that prevents spreading of fibres and particles into the air flow. 

– Does not affect free area or sound performance, unlike sheet-metal wall penetration sleeves.

– Made from environmentally friendly, flexibe and flame-retardant material.

– Complies with current recommendations for OVK inspections.

– Can be combined with the following transfer units: OLR/ÖLR, ODA/ÖDA*), SOD[b]/SÖD[b]*), S2O/S2Ö*), E5O

– Available in rectangular version, OFI-R (ÖFI-R)

 

*) Rectangular product, installed in circular hole cutting.

 

Sizes OFI-C (ÖFI-C) (mm)
– Available for two different wall depths (70 mm alt. 95 mm).

 

Wall depth | Hole cutting (Ø) | Designation

70 mm | Ø100 alt. Ø125 | OFI-C70-100-125
95 mm | Ø100 alt. Ø125 | OFI-C95-100-125


• S2O (S2Ö): The product is made of sheet steel, powder-coated in white RAL standard color, internally insulated with washable and surface-coated sound absorber. The product's insulation consists of 100% recycled, non-allergenic, hydrophobic PET plastic material. It is free from formaldehyde and, when burned, only carbon dioxide and water are produced.

 

• RAM-S2O (RAM-S2Ö): Mounting frame, made of hot-dip galvanized sheet steel.

 

• OFI-C (ÖFI-C): Made from environmentally friendly, flame-retardant polyurethane foam. The material is CertiPUR and Oeko-Tex certified.


• The unit is designed for installation in stud walls with circular cut-outs:
– S2O-300: 1 x Ø125 mm.
– S2O-550: 2 x Ø125 mm.

• Rivets are included in the delivery, other mounting materials are not included.

• The supplied pop rivets are intended for securing the unit’s front panel and must be applied regardless of whether the frame components are used.

• The product is installed in pairs using the included mounting frames.

• The frames are mounted on each side of the wall. The installation frames have pre-drilled holes for screw mounting.

• The mounting frames are secured to the ceiling or wall with 6 mm wood screws with flat countersunk heads.

• Installation with mounting frames is required for the installation to be approved in Class 1 facitlities (SE).

• For Class 2 and Class 3 facilitess, the mounting frame is optional.

• The diffuser fronts are riveted with the included 5 mm stainless steel rivets.

• When fibre protection sleeve OFI-C / ÖFI-C is used, the protection sleeve must be placed in the cut-out before installing the transfer unit and mounting frame. The sleeve penetration's elastic properties make it easy to press into the hole in the stud wall.