Square swirl diffuser PZK(A,B), PWK(A,B)

Transcription

1 Square swirl diffuser PZK(A,B), PWK(A,B) TECHNICAL DATA - 01 page 4 Square swirl diffuser PZK(A,B), PWK(A,B) PZK(A,B) and PWK(A,B) diffusers assort to swirl devices group. Diffuser s gaps are equipped with movable deflectors, which ensure high inductivity of air coming out and good mixing with the indoor air. Swirl diffusers PZK(A,B) and PWK(A,B) can be used in public premises such as offices, hotels, hospitals, restaurants, conference halls etc. These diffusers are also suitable for industrial buildings, where good thermal comfort is required. Diffusers are easy to install together with connection boxes SKHA that has duct connection placed horizontally or SKVA with inlet situated vertically. Duct connections are supplied with rubber gasket on. For panels PWKB and PZKB, alternatively it might be delivered connection box equipped with two spigots. Such solution enables mixing of two separate airstreams inside it. Devices are mostly installed in the false ceiling but they might be also working as freely hanging diffusers. Adjustable deflectors enable user to obtain required diffusion direction (vertical or horizontal blowing). Maximum temperature difference for cooling is t p -1K. Maximum temperature difference for heating is t p +K. The diffuser is painted in RAL 0 colour as a standard. Other colours are available on request. Product facts Square swirl diffuser PZK(A,B), PWK(A,B) Intended for ceiling installation Connection boxes with spigots placed vertically or horizontally Alternative connection box SKHE with two duct connections (only available for PWKB, PZKB panels) Adjustable airflow pattern Broad flow range Can be supplied in many RAL colours on request Product code example: Square swirl diffuser PWKA---1 Terminal of size, with black deflectors, painted in RAL 0 colour. Connection box SKVA to fit diffuser size, insulated, vertical spigot. Fläkt Woods PLBOV

2 Square swirl diffuser PZK(A,B), PWK(A,B) TECHNICAL DATA - 01 page 44 Supply air device, pressure drop, throw length Installation alternative - connection box SKHA SKHA 0 P [Pa] SKHA-16- SKHA-16-0 db(a) SKHA-0- db(a) SKHA-0-0 db(a) db(a) SKHA--/6 db(a) 4 db(a) V[m /h] V [l/s] In the above graph the sound levels are indicated in db(a) for a reference room with m room absorption, equivalent to 4 db room attenuation. Data for diffuser with connection box and measurement damper set for 0% opening. Throw length -K 0K L [ m] 0,, 1, 6,4 size, 6 1, 4 1, 1,6 1,4 1 1, V[ m/h] V[l/s ] On the graph there are given throw length values for different front plate sizes of PZK(A,B) and PWK(A,B). Fläkt Woods PLBOV 01.01

3 Square swirl diffuser PZK(A,B), PWK(A,B) TECHNICAL DATA - 01 page 4 Supply air device, pressure drop, throw length Installation alternative - connection box SKVA SKVA 0 P [ Pa ] SKVA-16- SKVA-16-0 db(a) SKVA-0- db(a) SKVA-0-0 db(a) db(a) db(a) SKVA--/6 4 db(a) V[m /h] V [l/s] In the above graph the sound levels are indicated in db(a) for a reference room with m room absorption, equivalent to 4 db room attenuation. Throw length -K 0K L [ m] 0,, 1, 6,4 size, 6 1, 4 1, 1,6 1,4 1 1, V[ m/h] V[l/s ] On the graph there are given throw length values for different front plate sizes of PZK(A,B) and PWK(A,B). Fläkt Woods PLBOV 01.01

4 Square swirl diffuser PZK(A,B), PWK(A,B) TECHNICAL DATA - 01 page 46 Exhaust air device, pressure drop, Installation alternative - connection box SKHA PZK(A,B), PWK(A,B) diffusers working as exhaust devices (without air control deflectors) P [Pa] SKHA-16- SKHA-16- SKHA-0- SKHA-0- SKHA--/6 0 db(a) db(a) 0 db(a) db(a) db(a) V[m /h] SKHA V [l/s] Installation alternative - connection box SKVA PZK(A,B), PWK(A,B) diffusers working as exhaust devices (without air control deflectors) 0 0 db(a) db(a) SKVA P [ Pa ] SKVA-16- SKVA-16- SKVA-0-0 db(a) SKVA-0- db(a) 0 db(a) SKVA--/ V[m /h] V [l/s] In the above graph the sound levels are indicated in db(a) for a reference room with m room absorption, equivalent to 4 db room attenuation. Fläkt Woods PLBOV

5 Square swirl diffuser PZK(A,B), PWK(A,B) TECHNICAL DATA - 01 page 47 Sound data, definitions Sound power level Supply air device Correction of sound level K oct in db for octave bands, mean frequency (Hz) Exhaust air device Correction of sound level K oct in db for octave bands, mean frequency (Hz) Sound attenuation Supply air device with insulated connection box Sound attenuation in db for octave band, mean frequency (Hz) Exhaust air device with insulated connection box Sound attenuation in db for octave band, mean frequency (Hz) The sound power levels for different octave bands are obtained by adding together the sound pressure level L A, in db(a), and the corrections K oct for the octave bands in the table with the help of the following formula: L W = L A + K oct Correction K oct is the mean value for the range of application of PZK(A,B), PWK(A,B). Definitions q air flow l/s, m /h p t total pressure drop Pa L 0 throw m L A sound pressure level with a room attenuation of 4 db ( m room absorption area) db(a) L W sound power level db K oct octave band correction db L sound attenuation from the duct to the room db Fläkt Woods PLBOV 01.01

6 Square swirl diffuser PZK(A,B), PWK(A,B) TECHNICAL DATA - 01 page 48 Dimensions Face panels Nominal size A 1 (mm) No.of deflectors A 1 A 1 PZK(A,B)- 6 1 PZK(A,B) PZK(A,B)- 0 PZK(A,B) PWK(A,B)- 6 1 PWK(A,B) PWK(A,B)- 0 PWK(A,B) A 1 A 1 PZK(A,B) PWK(A,B) Panel profiles A B A-A PWKA, PZKA B-B PWKB, PZKB Deflector setting 11, Adjustable diffusion pattern radial (standard) two - way Fläkt Woods PLBOV

7 Square swirl diffuser PZK(A,B), PWK(A,B) TECHNICAL DATA - 01 page 4 Dimensions SKHA connection box DxD F M1 DN 6 B AxA DN A B D F M All dimensions are indicated in mm. SKVA connection box DxD DN F AxA DN A D F All dimensions are indicated in mm. Fläkt Woods PLBOV

8 Square swirl diffuser PZK(A,B), PWK(A,B) TECHNICAL DATA - 01 page Diffuser with SKHE connection box SKHE connection box SKHE connection box is equipped with two inlets, which enables mixing of two airstreams inside before delivered to diffuser. It is only possible to supply this type of plenum box along with PZKB and PWKB face panels of size. SKHE may be applied if there is necessity to feed diffuser from the two separate duct systems. Good application example is merging recirculation air coming from cassette fancoils with fresh air. Putting non-return damper on appropriate spigot, prevents air back-draught in case one of the two systems is disabled. D Measurement and adjustment damper (optional) RSKA non-return damper (optional) x 4 4 D L L Perforated steel sheet x B 7 x7 7 x7 Type L (mm) D (mm) B(mm) SKHE SKHE SKHE SKHE SKHE SKHE SKHE SKHE Fläkt Woods PLBOV

9 Square swirl diffuser PZK(A,B), PWK(A,B) TECHNICAL DATA - 01 page 1 Diffuser with SKHE connection box Pressure drop and sound level 1 P [ Pa ] P [ Pa ] V V P C= P+ P 1 [Pa] V[m /h] V 1 V 1 +V V [l/s] 00 In order to determine the total pressure drop DP C for specific air route, pressure drop DP 1, for the given duct connection and its airflow (V 1 ), should to be added to DP pressured drop value, read for total diffuser's airflow (V 1 + V ). Data for diffuser with connection box and measurement damper set for 0% opening. Fläkt Woods PLBOV 01.01

10 Square swirl diffuser PZK(A,B), PWK(A,B) TECHNICAL DATA - 01 page Airflow measurement, descriptive text, product code Airflow measurement In order to measure airflow going through perforated panel, one should take a measure of overpressure Dp m [Pa] on the connection box spigot and multiply it by relevant k factor value. q = k p m (l/s) (Pa) q =,6k p m (m /h) (Pa) Descriptive text Square swirl diffuser PZK(A,B), PWK(A,B) for ceiling installation manu fac tured by Fläkt Woods. Product code Square swirl diffuser Face panel size,,, 6 P(Z,W)K(A,B)-aa-b-c D q Colour of deflectors 0 = without deflectors (exhaust mode) 1 = white deflectors = black deflectors N Pm Colour 1 = standard RAL 0 X = any other colour from RAL palette k - factors D (mm) k N=D N=1 7D N>7D Connection box (horizontal inlet) 16-, 16-, 0-, 0-, -, -6 (duct connection size - diffuser size) Type 0 = uninsulated 1 = insulated SKHA-aa-bb-c-d Damper 0 = without 1 = blade damper = measurement and adjustment damper ZAEE Connection box (vertical inlet) SKVA-aa-bb-c-0 16-, 16-, 0-, 0-, -, -6 (duct connection size - diffuser size) Type 0 = uninsulated 1 = insulated Fläkt Woods PLBOV 01.01

11 Square swirl diffuser PZK(A,B), PWK(A,B) TECHNICAL DATA - 01 page Product code Product code Connection box (two inlets) SKHE-aa-bb-cc-d-e Duct connection sizes L/ D -0, -, 1-0, 1-, 0-1, 0-, -1, -0 PZKB, PWKB panel size Type 0 = uninsulated 1 = insulated Damper 0 = without 1 = measurement and adjustment damper ZAEE on duct connection L = measurement and adjustment damper ZAEE on duct connection D = measurement and adjustment damper ZAEE on both duct connections L and D Accessories Non-return damper RSKA-aa Duct connection size, 1, 16, 0, Fläkt Woods PLBOV