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ZWRHV 40 / KWHRVA 02 ist ein Außenluftdurchlass für die Wand Kategorienbild

EHT

WALL HUMIDITY SENSITIVE AIR INLET

The efficient wall mounted alternative

Designed to be installed on the wall or on a rolling shutter casing, the EHT humidity sensitive air inlet is an ideal alternative to window-mounted air inlets. It thus solves the problem of lack of space on windows. With accessories, it provides a high level of acoustic protection, up to 52 dB attenuation. A closing device and an airflow controller can be used to protect from cold weather and strong winds.

CONTACT-US

Humidity sensitive system: modulates the airflow according to the local relative humidity.

Core drilling: easy installation on the wall, ideal for refurbishment projects.

Acoustic attenuation: up to 52 dB with accessories.

Easy to maintain: no adjustment, simple yearly dusting, and readily accessible filters.

Description

Characteristics

Schematic

Accessories

Gallery

Documents

Easy wall mounting and efficient protection against outdoor noise

Easy to install, in particularly in refurbishment, the circular hole can be made using a core drill 100 mm in diameter – 125 mm for the complete acoustic kit. The complete acoustic kit (EHT + 125 mm duct + acoustic foam + acoustic canopy) can attain an acoustic attenuation of 52 dB, which places it among the best products available on the market.

Insect filter

Nothing could be easier than cleaning the insect filter: once the EHT is unclipped, the removable F-EHT filter is readily accessible from the interior of the dwelling.

ACW: automatic airflow controller

The ACW makes it possible to limit the maximum airflow to 40 m3/h in a duct 100 or 125 mm in diameter, even when the pressure exceeds 20 Pa (when there is wind for example).

Air inlet		EHT 5-40	EHT 11-40	EHT 17-40	EFT24	EFT 40
Standard code		EHT780	EHT957	EHT022	EFT840	EFT026
Airflow characteristics
Humidity sensitive		■	■	■	–	–
Closing device		■	–	–	–	–
Airflow (min – max) @ 10 Pa	m³/h	5-40	11-40	17-40	24	40
Max. opening area	mm²	4 000	4 000	4 000	4 000	4 000
Accessories / composition of the kits
Air inlet (EHT)		■	■	■	■	■
ø100 mm tube, length 350 mm		◊	◊	◊	◊	◊
Acoustic foam for ø100 mm tube		◊	◊	◊	◊	◊
Acoustic foam for ø125 mm tube		◊	◊	◊	◊	◊
Anti-insect removable filter (F-EHT)		◊	◊	◊	◊	◊
Acoustic foam for A-EHT canopy		◊	◊	◊	◊	◊
Anti-insect wall standard canopy (A-EHT-AM)		◊	◊	◊	◊	◊
Wall standard canopy (A-EHT)		◊	◊	◊	◊	◊
Characteristics
Weight	g	489	489	489	382	382
Colour		white	white	white	white	white
Material (main)		PS	PS	PS	PS	PS
Installation
Spigot*	mm	ø100	ø100	ø100	ø100	ø100
Wall passage dimensions	mm	ø100 or ø125	ø100 or ø125	ø100 or ø125	ø100 or ø125	ø100 or ø125
Rolling shutter casing installation		■	■	■	■	■
Wall installation		■	■	■	■	■
Destination room		bedroom / living room

■: standard / included
◊: compatible
*Exists in bracket version

Available kits

Kits		Wall kit EHT 5-40 #1	Wall kit EHT 5-40 #2	Acoustic wall kit EHT 5-40
Standard code		EHT816	EHT815	EHT969
Airflow characteristics
Humidity sensitive		■	■	■
Closing device		■	■	■
Airflow (min – max) @ 10 Pa	m³/h	5-40	5-40	5-40
Max. opening area	mm²	4000	4000	4000
Accessories / composition of the kits
Air inlet (EHT) (1)		■	■	■
ø100 mm tube, length 350 mm (2)		■	■	■
Acoustic foam for ø100 mm tube (3)		–	–	■
Acoustic foam for ø125 mm tube (4)		–	–	–
Anti-insect removable filter (F-EHT) (5)		–	■	–
Acoustic foam for A-EHT canopy (6)		–	–	■
Anti-insect wall standard canopy (A-EHT-AM)		■	–	■
Wall standard canopy (A-EHT) (7)		–	■	–
Characteristics
Weight	g	862	962	988
Colour		white	white	white
Material (main)		PS	PS	PS
Installation
Spigot*	mm	ø100	ø100	ø100
Wall passage dimensions	mm	ø100	ø100	ø100
Rolling shutter casing installation		–	–	–
Wall installation		■	■	■
Destination room		bedroom / living room

■: standard / included
◊: compatible
*Exists in bracket version

Acoustic performances of the different kits

Acoustics (combinations)	Comb n.1	Comb n.2	Comb n.3	Comb n.4	Comb n.5	Comb n.6
EHT air inlet, max. opening = 40 m³/h @ 10 Pa (1)	■	■	■	■	■	■
ø100 mm tube (2)	■	■	■	■	–	–
Acoustic foam for ø100 mm tube (3)	–	■	–	■	–	–
ø125 mm tube	–	–	–	–	■	■
Acoustic foam for ø125 mm tube (4)	–	–	–	–	■	■
Acoustic foam for A-EHT canopy (6)	–	–	■	■	–	■
A-EHT wall canopy (7)	■	■	■	■	■	■
Dn,e,w (C ; Ctr) Acoustic attenuation in dB	33 (0 ; 0)	42 (0 ; -2)	40 (0 ; -2)	45 (0 ; -2)	49 (-1 ; -4)	52 (-1 ; -4)

Note: acoustics results for recommanded slots.

AIRFLOW / DIMENSIONS IN MM

IMAGE	CODE	DESIGNATION
	AEA776	ø100 mm tube Wall plastic sleeve ø100 mm, L.350 mm for EHT
	AEA775	A-EHT Wall canopy
	AEA064	ACW Airflow controller: limits the airflow to 40 m3/h
	AEA774	F-EHT Removable filter for ø100 mm tube
	AEA086	ø125 mm adaptor for ACW related product
	AEA967	Acoustic foam for ø125 mm duct, 48 dB (x2 kit)
	AEA968	Acoustic foam for ø100 mm duct, 43 dB (x2 kit)