In-frame ventilators
Acoustic Self-regulating units

General information

ISOLA 2 Self-regulating units with noise suppression	ÉSEA Self-regulating units with noise suppression	Mini ÉSEA Self-regulating units with noise suppression

EM A Self-regulating units with noise suppression

The sizing of air inlet vents in a given home, after taking the permeability of the building envelope into account, must produce the maximum extraction rate at a pressure head not exceeding 20 Pascals.

The inlet vent along with its accessories is characterized by a modulus equal to the flow rate at 20 Pa.

CALCULATION OF AIR INLET FLOWS

Case 1: ∆P = 20 Pa S ≥ QM - Qf (Forced ventilation)

Case 2: ∆P = 10 Pa S ≥ 1,4 QM - Qf (Natural ventilation)

S = sum of air inlet vent modulus values

QM = maximum air extraction rate from dwelling

Qf = air leakage rate of the whole building envelope at 20 Pa shown in the table below

AIR LEAKAGE RATE

Number of main rooms		1	2	3	4	5	6	7
Value of Qf in m³/h	Apartment blocks	20	30	40	50	60	70	80
Value of Qf in m³/h	Houses	30	45	60	75	90	105	120

SIZING EXAMPLE

Accommo-dation type	Max total extraction rate (Qm)	Sum S of air inlet flows per room
		∆P = 10 Pa		∆P = 20 Pa
		Living	Bed	Living	Bed
1 main room	105 m³/h	135 m³/h		90 m³/h
1 main room w/gas	130 m³/h	150 m³/h		120 m³/h
2 main rooms	120 m³/h	90 m³/h	60 m³/h	60 m³/h	30 m³/h
2 main rooms w/gas	130 m³/h	105 m³/h	60 m³/h	60 m³/h	45 m³/h
3 main rooms	150 m³/h	90 m³/h	45 m³/h	60 m³/h	30 m³/h
4 main rooms	180 m³/h	90 m³/h	45 m³/h	45 m³/h	30 m³/h
5 main rooms	210 m³/h	90 m³/h	45 m³/h	45 m³/h	30 m³/h
6 main rooms and over	210 m³/h	90 m³/h	30 m³/h	30 m³/h	22 m³/h

In-frame ventilatorsAcoustic Self-regulating units

In-frame ventilators
Acoustic Self-regulating units