64 ELFOFresh² BT15B012GB-00
5 - Air recirculation
GPRX - Grill for recirculation air return plenum 325x175 mm white
Return grille in aluminium, which is painted white RAL 9001, with useful surface of 0.0292 m² for connection
to a PRX soundproof plenum.
Dp = pressure drop
Q = Air ow
Soundproofed plenum for air recirculation for DN90 tube x 5 ttings
Recirculation plenum in zinc-magnesium sheet metal with internal sound-proof lining for
installation in false ceilings or for wall-mounting.
The plenum allows the housing of the GPRX return grille.
The plenum can be connected to the manifold for the CPRX recirculation plenum if the recirculation
duct has a DN150 or DN200 mm internal diameter.
If the space available is modest, the recirculation Plenum can be connected to up to 5 TFT90X
round exible tubes through the relevant CBT90X Connector or to TFPNX at tubes through the
CBT90X Connector and COBPX Joint.
The number of exible ducts is dependent on the recirculation air ow rate.
Dp = pressure drop
Q = Air ow