Acoustic louvres PHZE Technical Data. NEW MODELS: 200, 300, 400, 600 mm of depth. Acoustic louvres PHZE.

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1 coustic louvres PHZE Technical ata NEW MOELS:, 3, 4, 6 mm of depth coustic louvres PHZE

2 Technical ata coustic louvres PHZE escription and use: coustic louvres "PHZE" are made of plain galvanized steel or powder coated RL (stainless steel or lmg3 available upon reques). The louvres are filled with sound absorbing material covered with perforated metal plate for increased effectivity. There are 4 different depths available according to desired attenuation. The air inlets are equipped with bird protection grids as standard. onstruction angle of the sound absorbing blades allows also the installation as an end piece of an air duct (direct installation or with a frame). coustic louvres are used for reduction of the noise comming out from various openings such as from engine rooms or noisy industrial areas. bird protection grid in detail: Síto ird proti protection vletu grid ptactva +1 imensions (standard delivery): [width] [mm]: ; 3; 4; ; 63; 8; 1; 12; 14; 16; 18; ; 22; 2 [height] [mm]: 3; 4; ; 63; 8; 1; 12; 14; 16; 18; ; 22; 2 +1 [depth] [mm]: ; 3; 4; 6 Other dimensions available on demand. ut ŘEZ - coustic parameters and planning: The attenuating capacity of the acoustic louvre can be calculated in the sellection software. The louvre has to be calculated with respect to the air flow in the cross section in front of the louvre [x dimension], to the desired attenuation value [sound pressure value at the defined point] and to the noise source [sound capacity Lw(a)]. imension indicated as "" and "" are actually about 3mm smaller than the opening due to easy installation. (Example: For the duct of 1x8mm acoustic louvres of the following dimensions will be delivered: "" actual = 97mm, "" actual = 77mm) LEVELING SREW ETIL (+FRME) FILTER PTER (WLL MOUNTE) EU3 FILTER PTER EU3 INSULTION PTER min. 3 mm (á( á 2 mm) max. mm INSULTION PTER + WLL RKET x x x 3 x x PHZE-KN PHZE - NFN - x PHZE - NF - x PHZE - NI - x / xx PHZE - NI - x / xx + KN WLL RKET Nástěnná konzola ONTROL MPER K-TO-K Spojování MOUNTING žaluzií PHZ za sebou Spojka Spojka PHZE-V PHZE-V LOUVRE OUPLING SIE-Y--SIE WITH FRMES Spojování žaluzií PHZ vedle sebe PHZ včetně - rámečku NI - x / xx + KN 3 LT1 3 LT2 x (-) x (-7) Počet konzol: do 1 mm - 2 ks Number do od 1 1 mm mm 2 pcs - do mm - 3 ks of brackets: od od 1 mm mm do - do 3 mm mm 3 pcs. - 4 ks od mm do 3 mm 4 pcs. PHZ - KN PHZE - KN PHZE - RK - x 125 (115) 6 PHZE - SPV Spojka PHZE-H covering Krycí backplate spojka backplate - H Rámeček atypical atypický frame PHZ PHZE - - SPH PHZ - SPV site 2 Technical ata 1/17

3 coustic louvres PHZE Technical ata Louvre weight [kg] and free cross section [%] PHZE Weight per 1 m 2 Free cross section* haracteristic Louvre Height [mm] kg % * valid for the whole connection dimension (x) alculation: L v = 1log (1 Lpv/1 + 1 Lpž/1 ) + dl LP V = LW log Lw 1 = Lw - t - Lw ž () = Lw (diagram) + Lw + Lw a + Lw a oct (for the relevant frequency) Lp ž = Lw ž () + 1 log EPTH mm Lp v = noise dispersion in the air duct reduced by the attenuation "" of the acoustic louvre and routing Lp ž = self noise of the louvre Lw 1 = sound power lever of the system "d()" Lw = sound power of the noise source "d()" t = attenuation of the transmission Lw ž () = level of the louvre acoustic output at air speed given just before the louvre = directional coefficient (determined by the designer - most common value is 2) Louvre attenuation [d] frekvence [Hz] PHZE attenuation [d] orrection of the louvre self-noise according to its surface Δ Lw [d] surface of the louvre m 2 PHZE,3,5,7,8 1 1, correction [d] -5,2-3 -1,5-1 1, ,8 1 F-IN F-OUT K-IN K-OUT iagram of the pressure loss [Pa] orrection of the louvre self-noise according to the way of air flow and type of connection Lw a oct - frequencies F-IN F-OUT K-IN K-OUT iagram of the self noise lw due to the air flow [d] tlaková pressure ztráta loss [Pa] self vlastní noise of hluk the žaluzie louvre Lw [d] ,5 1 1,5 2 2,5 3 3,5 4 4,5 air rychlost velocity v profile profilu x [m/s] orrection of the pressure loss by the way of air flow and type of connection,9,98,9 1,5 1 1,5 2 2,5 3 3,5 4 4,5 air rychlost velocity v profile profilu x [m/s] orrection according to the way of air flow and type of connection Lw a /17 Technical ata stite 3

4 Technical ata coustic louvres PHZE Louvre weight [kg] and free cross section [%] PHZE 3 Weight per 1 m 2 Free cross section* haracteristic Louvre Height [mm] kg % * valid for the whole connection dimension (x) alculation: L v = 1log (1 Lpv/1 + 1 Lpž/1 ) + dl LP V = LW log Lw 1 = Lw - t - Lw ž () = Lw (diagram) + Lw + Lw a + Lw a oct (for the relevant frequency) Lp ž = Lw ž () + 1 log Louvre attenuation [d] frekvence [Hz] PHZE attenuation [d] EPTH 3 mm 3 Lp v = noise dispersion in the air duct reduced by the attenuation "" of the acoustic louvre and routing Lp ž = self noise of the louvre Lw 1 = sound power lever of the system "d()" Lw = sound power of the noise source "d()" t = attenuation of the transmission Lw ž () = level of the louvre acoustic output at air speed given just before the louvre = directional coefficient (determined by the designer - most common value is 2) orrection of the louvre self-noise according to its surface Δ Lw [d] surface of the louvre m 2 PHZE 3,3,5,7,8 1 1, correction [d] -5,2-3 -1,5-1 1, ,8 1 F-IN F-OUT K-IN K-OUT iagram of the pressure loss [Pa] orrection of the louvre self-noise according to the way of air flow and type of connection Lw a oct - frequencies F-IN F-OUT K-IN K-OUT iagram of the self noise lw due to the air flow [d] tlaková pressure ztráta loss [Pa] self vlastní noise of hluk the žaluzie louvre Lw [d] ,5 1 1,5 2 2,5 3 3,5 4 4,5 air rychlost velocity v profile profilu x [m/s] orrection of the pressure loss by the way of air flow and type of connection 3,9,98,9 1,5 1 1,5 2 2,5 3 3,5 4 4,5 air rychlost velocity v profile profilu x [m/s] [m/s] orrection according to the way of air flow and type of connection Lw a site 4 Technical ata 1/17

5 coustic louvres PHZE Technical ata Louvre weight [kg] and free cross section [%] PHZE 4 Weight per 1 m 2 Free cross section* haracteristic Louvre Height [mm] kg % * valid for the whole connection dimension (x) alculation: L v = 1log (1 Lpv/1 + 1 Lpž/1 ) + dl LP V = LW log Lw 1 = Lw - t - Lw ž () = Lw (diagram) + Lw + Lw a + Lw a oct (for the relevant frequency) Lp ž = Lw ž () + 1 log EPTH 4 mm 4 Lp v = noise dispersion in the air duct reduced by the attenuation "" of the acoustic louvre and routing Lp ž = self noise of the louvre Lw 1 = sound power lever of the system "d()" Lw = sound power of the noise source "d()" t = attenuation of the transmission Lw ž () = level of the louvre acoustic output at air speed given just before the louvre = directional coefficient (determined by the designer - most common value is 2) Louvre attenuation [d] frekvence [Hz] PHZE attenuation [d] orrection of the louvre self-noise according to its surface Δ Lw [d] surface of the louvre m PHZE 4 2,3,5,7,8 1 1, correction [d] -5,2-3 -1,5-1 1, ,8 1 F-IN F-OUT K-IN K-OUT iagram of the pressure loss [Pa] orrection of the louvre self-noise according to the way of air flow and type of connection Lw a oct - frequencies F-IN F-OUT K-IN K-OUT iagram of the self noise lw due to the air flow [d] tlaková pressure ztráta loss [Pa] self vlastní noise of hluk the žaluzie louvre Lw [d] ,5 1 1,5 2 2,5 3 3,5 4 4,5 air rychlost velocity v profile profilu x [m/s] orrection of the pressure loss by the way of air flow and type of connection 4,92,92,9 1,5 1 1,5 2 2,5 3 3,5 4 4,5 air rychlost velocity v profile profilu x [m/s] orrection according to the way of air flow and type of connection Lw a /17 Technical ata stite 5

6 Technical ata coustic louvres PHZE Louvre weight [kg] and free cross section [%] PHZE 6 Weight per 1 m 2 Free cross section* haracteristic Louvre Height [mm] kg % * valid for the whole connection dimension (x) alculation: L v = 1log (1 Lpv/1 + 1 Lpž/1 ) + dl LP V = LW log Lw 1 = Lw - t - Lw ž () = Lw (diagram) + Lw + Lw a + Lw a oct (for the relevant frequency) Lp ž = Lw ž () + 1 log Louvre attenuation [d] frekvence [Hz] PHZE attenuation [d] EPTH 6 mm 6 Lp v = noise dispersion in the air duct reduced by the attenuation "" of the acoustic louvre and routing Lp ž = self noise of the louvre Lw 1 = sound power lever of the system "d()" Lw = sound power of the noise source "d()" t = attenuation of the transmission Lw ž () = level of the louvre acoustic output at air speed given just before the louvre = directional coefficient (determined by the designer - most common value is 2) orrection of the louvre self-noise according to its surface Δ Lw [d] surface of the louvre m 2 PHZE 6,3,5,7,8 1 1, correction [d] -5,2-3 -1,5-1 1, ,8 1 F-IN F-OUT K-IN K-OUT iagram of the pressure loss [Pa] orrection of the louvre self-noise according to the way of air flow and type of connection Lw a oct - frequencies F-IN F-OUT K-IN K-OUT iagram of the self noise lw due to the air flow [d] tlaková pressure ztráta loss [Pa] self vlastní noise hluk of the žaluzie louvre Lw [d] ,5 1 1,5 2 2,5 3 3,5 4 4,5 air rychlost velocity v profile profilu x [m/s] orrection of the pressure loss by the way of air flow and type of connection type of louvre F-IN F-OUT F-IN F-OUT 6,92,92,9 1,5 1 1,5 2 2,5 3 3,5 4 4,5 air rychlost velocity v profilu profile x [m/s] orrection according to the way of air flow and type of connection Lw a type of louvre K-OUT K-IN F-OUT F-IN site 6 Technical ata 1/17

7 coustic louvres PHZE Technical ata Example of calculation: METHOIS OF ESIGNING OUSTI LOUVER alculation: L v = 1log (1 Lpv/1 + 1 Lpž/1 ) + dl Lp v = Lw log Lp ž = Lw ž () + 1 log Lw 1 = Lw - t - R = distance of the point from the core of the louvre (m) Lwž() = Lw (diagram) + Lw + Lwa + Lwa oct Lp v = noise dispersion in the air duct reduced by teh attenuation "" of the acoustic louvre and routing Lp ž = self noise of the louvre Lw 1 = sound power lever of the system "d()" Lw = sound power of the noise source "d()" t = attenuation of the transmission Lw ž ()= sound power level of the louvre at defined air stream speed right in front of the louvre = directional coefficient (determined by the designer - most common value is 2) Example of calculation: To design the louvre based on the parameters of the source of the noise in order to achieve the value of 6 d() in distance of 3m from the louvre. epth of louvre 3 mm - selected size 1/1 mm ir mass 5 m3/h Type of installation K-OUT irectional coeficient of sound reflection =2 alculation Lw - Source of the noise t - attenuation of the transmittion 1,8 1,8,9,5,5,5,5,5 - attenuation of the louvre Lw ž () - self noise of the louvre 46,5 41,5 43,5 38,5 35,5 31,5 28,5 25 lv - acoustic pressure [db(a)] 52,7 52,7 54, Pressure loss according to the diagram: 17 Pa x correction for K-OUT TOT 58,7 example of calculation in the software 1/17 Technical ata stite 7

8 coustic louvres PHZE Technical data LULTION SOFTWRE In order to simplify the selection of the louvres and other insulating products based on the complex noise situation and the source of the noise, the manufacturer created the computer software. ell silencers JTH ell silencers JTHE Panel silencers Glideflow - GE Zellenschalldämpfer Zellenschalldämpfer Jth JTHE KEY FOR N ORER: - 12 / 1 / RL91 / XX Width Height epth olour finish Material finish 2 mm 3 2 mm mm 3 mm Standard RL 91 (white) 4 mm ll RL range ZN zinc-coated metal sheet L sheet aluminium NI stainless steel XX different finish (yellow brass, copper, etc.) 6 mm Representative: / STVOKLIM s.r.o. UĚJOVIKÁ HOMOLE tel.: info@stavoklima.cz PHZE 1/217-N PHZE