Jeven – ammattikeittiöiden ilmanvaihtoratkaisut/Products/Dampers/Inno

Inno

Inno is a patented damper for circular ducts. It is completely made from soft elastic plastic foam with good damping abilities. The damper has a number of oval openings equipped with releasable plugs. The pressure drop across the damper is adjusted by varying the number of open holes. Inno is usable with both supply and exhaust air valves.

Inno dampers are available from all good ventilation wholesalers in Europe. If you can’t find a wholesaler in your country, please contact us jeven(at)jeven.fi.

FUNCTIONING PRINCIPLE
TECHNICAL INFORMATION - ERE
TECHNICAL INFORMATION - RP
INSTALLATION
Product code

FUNCTIONING PRINCIPLE

The pressure and air mass flow is easily adjusted by varying the number of open holes in the damper. The unique material and design of the damper results in low sound generation, even at large pressure drops. Inno is incredibly easy to install, which makes the damper ideal for use with existing installations.

The stable plastic foam has an open cellular structure and high density, which means extraordinary ability to absorb sound. Because of this the damper doubles as a simple silencer. The placement of several Innos one after another in a duct reduces noise, and sound problems such as overhearing between rooms can often be solved using Inno.

TECHNICAL INFORMATION - ERE

Dimensions

Size (mm)	øD₁	øD₂	S
80	80	82	50
100	100	102	50
125	125	127	50
160	160	162	50
200	200	202	50
250	250	252	75
315	315	318	75

Sound attenuation

The sound attenuation, dB by octave bands (63-8000 Hz) ISO 7235 (without end reflection)

Number of open holes	Hz
	63	125	250	500	1000	2000	4000	8000
Inno-80-ERE,2	0,5	1	2	4,5	6	10	11	13
Inno-100-ERE,3	0	0,5	1	2	3,5	4,5	7	11
Inno-100-ERE,5	0	0	0,5	1	1,5	2,5	4,5	8,5
Inno-125-ERE,3	2	2,5	3	4	5,5	7	11	16
Inno-125-ERE,8	0,5	0,5	0,5	1	1,5	2,5	5	9
Inno-160-ERE,1	2	1,5	2,5	2,5	3,5	4,5	6	7,5
Inno-160-ERE,5	0	0	0,5	1	1,5	2	4	5
Inno-200-ERE,2	2,5	2	2,5	2,5	3,5	5	6,5	7
Inno-200-ERE,8	0,5	0,5	1	1	1,5	3	4	6
Inno-250-ERE,3	3	3	3	5	6	7	9	11
Inno-250-ERE,10	0,5	0,5	1	2,5	3,5	5	7	8
Inno-315-ERE,4	1,5	2	3	4	6	8	9	11
Inno-315-ERE,14	0,5	1	1	2	4	5	7	9

Air flow rate – Pressure loss – Acoustic data
This symbol shows the number of open holes.
L_WA = Sound power level in the duct dB(A).
ΔP_t(Pa)= Total pressure loss, Pa.

Inno-80-ERE

Inno-125-ERE

Inno-200-Ere

Inno-315-ERE

Inno-100-ERE

Inno-160-ERE

Inno-250-ERE

Sound power level

Sound power level in octave band supply/exhaust air
Sound power level LW= LWA + KW

Product	Hz
	63	125	250	500	1000	2000	4000	8000
Inno-80-ERE	8	6	4	-1	-9	-13	-15	-25
Inno-100-ERE	8	6	4	-1	-9	-13	-15	-25
Inno-125-ERE	9	7	5	-2	-9	-11	-18	-23
Inno-160-ERE	9	8	3	-3	-7	-13	-20	-24
Inno-200-ERE	8	8	6	-5	-12	-16	-14	-24
Inno-250-ERE	9	8	3	-3	-7	-13	-20	-24
Inno-315-ERE	8	8	6	-5	-12	-16	-14	-24

TECHNICAL INFORMATION - RP

Dimensions

Size (mm)	øD₁	øD₂	S
80	80	82	50
100	100	102	50
125	125	127	50
160	160	162	50
200	200	202	50
250	250	252	75
315	315	318	75

Sound attenuation

The sound attenuation, dB by octave bands (63-8000 Hz) ISO 7235 (without end reflection)

Number of open holes	Hz
	63	125	250	500	1000	2000	4000	8000
Inno-80-RP,2	2,5	2	3	4,5	6	9	10	16
Inno-100-RP,3	3	3,5	2,5	5,5	8,5	8,5	15	19
Inno-100-RP,5	1,5	2,5	1,5	3,5	6,0	6,5	12	17
Inno-125-RP,3	5	6	5	5	12	13	19	21
Inno-125-RP,8	1	1,5	1,5	2,5	6	6	11	18
Inno-160-RP,1	6,5	7	4	9,5	13	16	18	22
Inno-160-RP,5	3	3,5	2,5	5,5	8,5	8,5	15	20
Inno-200-RP,2	4	6,5	2,5	5,5	13	14	18	16
Inno-200-RP,8	2	2	1	1,5	7	7	13	14
Inno-250-RP,3	5	4	3	7	13	18	18	17
Inno-250-RP,10	2	3	1,5	2,5	7,5	11	14	13
Inno-315-RP,4	5	5	3	6	12	15	16	18
Inno-315-RP,14	2	2	1	1,5	7	8	10	13

Air flow rate – Pressure loss – Acoustic data

This symbol shows the number of open holes.

L_WA = Sound power level in the duct db(A)
ΔP_t(Pa)= Total pressure loss

Inno-80-RP

Inno-125-RP

Inno-200-RP

Inno-315-RP

Inno-100-RP

Inno-160-RP

Inno-250-RP

Air flow rate

Sound power level in octave band supply/exhaust air
Sound power level L_W= L_WA + K_W

Table Kw

Product	Hz
	63	125	250	500	1000	2000	4000	8000
Inno-80-RP	6	4	3	0	-9	-10	-17	-24
Inno-100-RP	6	4	3	0	-9	-10	-17	-24
Inno-125-RP	4	2	1	0	-8	-10	-18	-24
Inno-160-RP	5	4	3	0	-9	-10	-18	-22
Inno-200-RP	4	2	5	-4	-10	-15	-20	-25
Inno-250-RP	5	4	3	0	-9	-10	-18	-22
Inno-315-RP	4	2	5	-4	-10	-15	-20	-25

INSTALLATION

	A (mm)	B (mm)
Supply air	50-350	50-250
Exhaust air	0-50	50-250

Inno is very easy to use with existing installations. Simply insert Inno into the duct opening from the room side. No tools are needed. The formable damper will seal tightly against the duct wall. Inno can be easily cleaned with a vacuum.

By placing several Innos after one another in a duct, the silencing is increased further. Inno can be easily cleaned with a vacuum during duct cleaning.

øD₁ = Diameter of the duct
A = Minimum distance between duct opening and the first Inno damper
B = Minimum distance between Inno dampers

Product code

INNO – 100 – ERE

Inno-ERE is mainly made from a polyester fiber. This material fulfills the SBI-test, pr EN 13823 B-class (B,s1,d0). Inno-ERE also contains small amounts of the flexible polyurethane foam. The material is flame resistant and conforms with FMVSS-302, the fabric flammability standard which is also used in e.g. automotive industry.

INNO – 100 – RP

Inno-RP is mainly made from a flexible polyurethane foam.