RA-TK
Main features
• Supply air diffuser with adjustable air flow direction
• Horizontal or vertical air supply
• Cleanable commissioning box with built-in balancing damper.
• RA for fixed ceilings or free-hanging ceiling installation
• RAI for modular/false ceilings
Description
• Multi-directional cone diffuser for horizontal or vertical air supply in rooms where large air flows are required.
• The diffuser is fitted normally installed in a cleanable commissioning box/plenum type TK, which contains measuring hoses and detachable balancing damper.
• The RA version is intended for fixed suspended ceilings or free-hanging installation.
• The RAI version is intended for recessed installation in standard 12 mm / 600x600 support structures, i.e. false ceilings, modular ceiling systems.
Product sizes – RA (mm):
Ø160
Ø200
Ø250
Ø315
Ø400
Product sizes – RAI (mm):
Ø160
Ø200
Ø250
Ø315
Accessories
• MN: Muff/nipple, duct extension/converter for installation with plenum in suspended ceilings.
Commissioning box/plenum – TK
(Ø dim. diffuser side-duct side, mm)
• TK – 1 step*) for RA:
160-125
200-160
250-200
315-250
400-315
• TK – 2 step*) for RA:
160-100
200-125
250-160
315-200
400-250
• TK – 1 step*) for RAI:
160-125
200-160
250-200
315-250
• TK – 2 step*) for RAI:
160-100
200-125
250-160
315-200
• RA/RAI: Powder-coated galvanised sheet steel in white RAL 9003 standard colour, alternatively black RAL 9005.
• TK: Hot-dip galvanised steel sheet, internally insulated with washable and surface-coated sound absorber made of 100% recycled, non-allergenic, hydrophobic PET plastic material.
• The diffuser is connected directly to the commissioning box, or directly to a circular duct.
• The socket between the diffuser and the commissioning box can be extended with a circular duct. If the extension exceeds 500 mm, the measuring hose and damper cords must be extended.
• When installing in a suspended ceiling, accessory MN can be used to extend the socket by 40 mm.
• The commissioning box is connected to a circular duct and can be installed directly after a bend/elbow.
• When installed after a T-piece, a straight section corresponding to 4 x the duct diameter is required.
• The appropriate mounting height is calculated in conjunction with dimensioning; see instructions in the Dimensioning section of the product sheet (pdf).