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In-frame ventilators Humidity controlled units with noise suppression
ISOLA HY - Acoustic humidity controlled units

ISOLA HY - Acoustic humidity controlled units

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Description Colour Packg. * Code
Window inlet kit
ISOLA HY + CE2A 35 0691
ISOLA HY RA + CE2A 25 0693
Window inlet kit with screws and screw covers
ISOLA HY + CE2A + 6 screws + 3 screw covers 35 0645
ISOLA HY RA + CE2A + 6 screws + 3 screw covers 25 0646
CFA (anodized aluminium) 44 0194
CFA (white lacquered aluminium) 44 0195
CFA (black lacquered aluminium) 44 0196
* packaged quantities are shown for information purposes – All items can be ordered singly
Dn,e,w (Ctr) 

   37 to 39* dB
 *Model with RA muffler extension

External wall cowl CE2A more information
CFAmore information
Muffler extension RA more information

Slot (in mm) 354 x 12

Used in the scope of an ALIZÉ III humidity controlled ventilation system, (Technical Appraisal 14.5/17-2269 and 14.5/17-2268), ISOLA  HY air inlets are used in conjunction with the system’s humidity controlled or timed extraction vents.
They are characterized by a flowrate varying from 5–45 m³/hour (at 20 Pa pressure head) in line with the room’s humidity variations.
The ISOLA HY or ISOLA HY RA humidity controlled acoustic air inlet installed on the inside, is made from white polystyrene. For installation in main rooms (living and bedroom) to supply

air renewal in humidity controlled, single flowrate forced ventilation systems.

It works both on vertical walls and on inclined planes (e.g., roof skylights, undersides of roller shutter boxes). The cowl for fittting to the external wall is made from UV- and weather-resistant polystyrene in the same colours as the air inlets.
Exclusively for fitting to surfaces sheltered from bad weather. For non-sheltered surfaces please enquire with us.

On the indoor side, the base of the air inlet (ISOLA HY) or the muffler extension (ISOLA HY RA) is held in place by 3 screws. The cap is a push-fit. The cap can also be screwed on for a more secure hold.

For fitting to curved joinery, insert the round-fit base between the air inlet and the joinery.

The cowl on the external wall is centred on the slot and held in place by 3 screws (horizontal fitting).

The components must be kept easily accessible for cleaning and maintenance.

For fitting to an SRT or SRT+ through-wall or an SHF window top-frame silencer, please click here.


Type Dn,e,w (C) Dn,e,w (Ctr)
 ISOLA HY + CE2A 37 dB 37 dB
ISOLA HY RA + CE2A 39 dB 39 dB

Similar characteristics apply without an external wall cowl
Humidity controlled ventilation systems (Technical Appraisal 14.5/17-2269 and 14.5/17-2268) and air inlet sizing: see general information tab.