Air distribution systems. Please note, type code is new, see last page. Floor twist outlets DB-E... for commercial rooms DS 1146 E 02.

Transcription

1 Air distributin systems Please nte, type cde is new, see last page. Flr twist utlets DB-E... fr cmmercial rms DS E 0.0/

2 Flr twist utlets nstructin design Preliminary remarks Air utlets frm KRANTZ KOMPONENTEN fr use in raised flr systems perate accrding t the principle f air distributin frm bttm t tp and discharge the supply air draught-free int the rm. Heat, air pllutants and drus substances are displaced frm the ccupied zne t the ceiling zne and remved with the return air. The replacement f indr air with cnditined supply air is very intensive and the resultant air quality in the ccupied zne is extrardinarily gd. nstructin design The main cmpnent f the flr twist utlet is the air utlet element 1 with radially arranged air slts 1a. The DB-E flr twist utlet is used in cnventinal raised flr systems. If the flr plan is altered, the flr tiles with r withut air utlets are easily interchangeable. The lcal air supply can therefre be increased r reduced as required. There are tw cnnectin methds (Figure 1): Flr plenum system: The supply air enters the air utlet frm belw. The space under the raised flr acts as an air plenum. Ductline system: The flr twist utlet is cnnected t the duct system by means f a rectangular cnnectin bx with flexible tubing. There are tried and tested methds fr installing the air utlet: 1. Insertin in the stepped bre in the flr tile.. Installatin with clamp insert in a thrugh bre in the flr tile. There is a cllar n the tp f the clamp insert which functins as edging fr the tile cutut arund the air utlet. This ptin is useful fr raised flrs with carpeting. The clamp insert can be fixed t the flr tile with a clamp nut a, claw fastener b r clamp cllar d. The DN 0 twist element is als lckable t prevent unauthrized remval. 1) A standard flr twist utlet accessry is the distributr basket fr even air supply. There are different types t chse frm (Figure ): Standard design, with thrttle device: Type VSD (withut thrttle device: Type VS) Shrt type, fr lw plenums f raised flrs; withut thrttle device: Type VK Lw type, with penable basket bttm t enable additinal air supply frm belw, best fr raised flrs with thicker tiles and lwer plenums, with thrttle device: Type VND (withut thrttle device: Type VN) Perfrated sheet metal type fr flr air utlets made f aluminium, with Type VPD thrttle device Shrt type with fixed damper fr even supply air distributin when using DN 0 in assembly rms r with lw air utlet vlume flw rates: Type VL Raised flr: flr plenum system 1 1 VND 1 7 Figure 1: Abve: Belw: Raised flr: ductline system 1 Air supply ptins directly frm the pressurized plenum via flexible tubing and cnnectin bx VSD VK VPD DS E Bl ) Fr the preferred air utlet type (kind, size, material) r pssible cmbinatin f individual cmpnents see table n page, Types available Figure : Different types f distributr basket VL

3 Flr twist utlets made f plastic Dimensins min. ØD ØD 1) ØD 1 1a a min. ØD ØD 1) ØD h 7 Ød d h X 7 1 b Y ØD with clamp insert and claw fastener, distributr basket VND b ØD Detail X Detail Y a with clamp insert and clamp cllar, distributr basket VSD F G d b View frm abve cnnectin bx b max. ØD ØD 1) min. a L Ød a h L1 ØD ØD with clamp insert and clamp nut, distributr basket VK Key fr all pages 1 Flr twist utlet 1a Air slt Distributr basket Thrttle device Sealing (n site) lamp insert a lamp nut b law fastener d lamp cllar Prtective cllar 7 nnectin bx nnectin spigt a V-damper (ptinal) b Slide ) Raised flr a Thrugh bre b Stepped bre Flexible tube Supply air Induced indr air 1 Supply air jets Return air Return air duct + ØD1 ØD b max. DS E Bl. 0.0 Dimensins in mm Size Flr twist utlet lamp insert ØD1 ØD ØD ØD ØD 1) ØD ØD ØD 1) DN ±1 +0. ±1 DN ±1 +0. ±1 Distributr basket Size Type VS, VSD Type VK Type VN, VND Type VL ØD h Ø D h Ø D h Ø D h DN 1 1 DN nnectin bx Size Ød F G L1 L DN DN ØD ØD stepped bre withut clamp insert, distributr basket VL Nte: Any distributr basket can be used fr the respective installatin ptins. Likewise cnnectin bx 7 can be used fr the air utlet placement in the ther figures. 1)øD = ø-thrugh bre fr clamp insert with clamp nut r claw fastener; ød = the same fr clamp cllar ) The slide b f the V-damper is mvable frm the rm h

4 Flr twist utlets made f aluminium Dimensins min. Ø ±1 1) Ø Ø a a min. Ø ±1 1) Ø Ø Ø d Ø0 0 X 7 1 d 1 X a b with clamp insert and clamp cllar, distributr basket VPD 0 0 Ø with clamp insert and clamp cllar, distributr basket VSD Detail X Detail Y View frm abve cnnectin bx d b b 0 a Ø 70 min. Ø Ø ±1 1) Ø +0. b + Ø Ø. + b 0 max. Y Ø with clamp insert and claw fastener, distributr basket VND min. Ø ±1 1) Ø Ø 0 Ø 1 +1 stepped bre withut clamp insert, distributr basket VL b Ø 0 with clamp insert and claw fastener, distributr basket VK 0 Y DS E Bl. 0.0 Nte: Any distributr basket can be used fr the respective installatin ptins. Likewise cnnectin bx 7 can be used fr the air utlet placement in the ther figures. 1) ø ±1 = ø-thrugh bre fr clamp insert with claw fastener; ø ±1 = the same fr clamp cllar ) The slide b f the V-damper is adjustable frm the rm

5 Flr twist utlets Mde f peratin, technical data the desired indr air cnditins are maintained in the ccupied zne. This results in an excellent air quality r high ventilatin efficiency. Recmmended minimum spacing between seats is 1 m fr size DN 1 and 1 t 1. m fr DN 0. Figure : Flr twist utlet DB-E-DN 1 with VSD-type distributr basket; example fr installatin in flr tiles; abve: with stepped bre, belw: with clamp insert and cnnectin bx DS E Bl. 0.0/1 Mde f peratin The supply air flws int the distributr basket and then thrugh the radial air slts int the rm. Due t the many slts single twisted, high-turbulence air jets frm with an intensive inductin effect (Fig. ). This causes a rapid velcity reductin and a fast equalizatin f the supply air temperature and the indr air temperature. The supply frm belw prduces an upflw in the same directin as the buyancy caused by the heat lads in the rm. This upflw cnveys the warm and stale indr air t the ceiling, where it is remved, while 1 1 Figure : Mde f peratin f flr twist utlet Figure : Jet pattern f flr twist utlet made visible with smke tracer Technical data Nminal diameter DN 1 DN 0 Air vlume flw rate With ccupants in rm, max. Max. temperature difference supply air - return air l/s. m /h 0 l/s. m /h 1 K ± Supply air temperature Max. lad-bearing capacity 1) kg Twist element made f P Al P Fr tile size Flr twist utlets per tile, max. 0 mm x 0 mm unit 1 00 mm x 00 mm unit 1 Min. air utlet spacing m apprx. 0. apprx. 0. Min. distance between seat and air utlet m apprx. 1 apprx. 1. 1) With vertical single lad n a central indent f mm diameter; fr materials see under Types available; Al = aluminium; P = plycarbnate

6 Flr twist utlets Temperature equalizatin Jet temperature and velcity The generatin f high-inductin supply air jets with rapid velcity reductin and fast equalizatin f jet temperature and indr air temperature help a great deal in preventing draughts. Air utlets frm KRANTZ KOMPONENTEN are knwn t be eminently suited t meet this requirement. With air supply frm belw, flr twist utlets thus prduce excellent results in draught-free ventilatin. Size DN 0 Height abve air utlet Air temperature Vlume flw rate. l/s ( 1 m /h). l/s ( 1 m /h) The fllwing figures illustrate jet temperatures fr different measurement heights abve the flr twist utlets and dcument the quick reductin f temperature difference between supply air and indr air. The jet velcity curve is shwn n pages 7 and l/s ( 1 m /h). l/s ( 1 m /h) The jet temperature measurements are based n: Supply air temperature = (prir t discharge) Rm temperature = (at a height f 1. m ) Air utlet vlume flw rate DN 1: and l/s ( and m /h) DN 0: and l/s (1 and 1 m /h) l/s ( 1 m /h). l/s ( 1 m /h) Distance frm the air utlet axis in mm Size DN Air temperature Vlume flw rate. l/s ( m /h). l/s ( m /h) Height abve air utlet l/s ( m /h).0 l/s ( m /h) l/s ( m /h).1 l/s ( m /h) DS E Bl Distance frm the air utlet axis in mm Figure : Flr twist utlet in an ffice

7 Flr twist utlets Jet velcity fr size DN 1 1. Mean value fr DN 1 Air utlet vlume flw rate = l/s ( m /h); =l/s (m /h) a) Temperature difference between supply air and indr air K (1. m height) b) Temperature difference between supply air and indr air K (1. m height) H = 00 mm H = 00 mm H = mm H = mm H = 0 mm H = 0 mm Height abve the air utlet H = 0 mm Height abve the air utlet H = 0 mm Distance frm the air utlet axis x in mm Distance frm the air utlet axiis x in mm Raised flr Raised flr DS E Bl Nte: In the graphs (pages 7 and ) the jet velcities are shwn fr different reference levels abve the flr twist utlets DN 1 and DN 0. The jet velcities are shwn resp. fr a large and a small vlume flw rate and a large and small temperature difference between supply air and indr air. The theretical discharge velcity fr the large vlume flw rate with DN 1 amunts t. and with DN 0.1. The jet velcity - fr the resp. larger vlume flw rate - has already drpped fr size DN 1 at 0 mm height t apprximately and fr size DN 0 at 0 mm height t apprximately 0.. At a height f 00 mm jet velcity is. 7

8 Flr twist utlets Jet velcity fr size DN 0. Mean value fr DN 0 Air utlet vlume flw rate = l/s (1 m /h); =l/s (1 m /h) a) Temperature difference between supply air and indr air 0 K (1. m height) B) Temperature difference between supply air and indr air K (1. m height) H = 00 mm H = 00 mm H = mm H = mm Height abve the air utlet H = 0 mm Height abve the air utlet H = 0 mm Distance frm the air utlet axis x in mm Distance frm the air utlet axis x in mm DS E Bl Figure 7: View f installed DN 0 flr twist utlets, Left: In stepped bre Right: With clamp insert in a thrugh bre

9 Flr twist utlets Sund pwer level and pressure lss 1) 0 0 Ttal pressure lss pinpa t 0 Size DN 1 with distributr basket VSD SizeDN0with distributr basket VL p t Ttal pressure lss pinpa t Size DN 0 with distributr basket VSD and VPD p t L WA 7 l/s 1 Sund pwer level L in db(a) ref. W WA L WA l/s Sund pwer level L in db(a) ref. W WA - DS E Bl m/h Air utletvlume flwrate V Thrttle device Aperture width Distributr basket Disk 0 mm = clsed. mm = % pen mm = 0% pen Adjustment f thrttle device (disk) VPD distributr basket Left: Adjustment f thrttle device in the VSD distributr basket V-damper nnectin spigt nnectin bx in the Slide V-damper in cnnectin spigt Key t graphs: N. Size Type m/h Air utlet vlume flw rate V Distributr basket Thrttle device ) % pen Aperture width / Disk lift mm V-Damper in cnnectin spigt Damper angle 0.0 ). ) DN 1 VSD 0.0 pen. pen ) 7.0 ) DN 0 VSD 0.0 pen.0 pen ). ) 1 DN 0 VPD 0.0 pen. pen 0.0 DN 0 VL withut thrttle device ) 1) The sund pwer level and pressure lss pertain t the use f the VSD, VPD and VL distributr baskets. When using VK and VND distributr baskets, the values apprximate thse f the VSD distributr basket. ) The thrttle device in the VSD distributr basket enables cntinuus reductin f air vlume rate, preferably up t % as well as full shutff ) Withut cnnectin bx

10 Flr twist utlets Layut specificatins Sund pwer level and ttal pressure lss N. Air utlet vlume flw rate Ttal pressure lss Sund pwer level LW in db ref. - W VA pt LWA Octave band centre frequency in Hz N. Air utlet vlume flw rate Ttal pressure lss Sund pwer level LW in db ref. - W VA pt LWA Octave band centre frequency in Hz l/s m /h Pa db(a) K K K DN 1 with distributr basket VSD DN 0 with distributr basket VSD l/s m /h Pa db(a) K K K DN 0 with distributr basket VPD DN 0 with distributr basket VL Size Insertin lss in db Octave band centre frequency in Hz K K K K 1 1 Mean value DN1 1 0 DN0 1 1 DN1 0 DN0 1 1 withut cnnectin bx with cnnectin bx Layut specificatins Size DN 1 In applicatins with very high cmfrt requirements, the DN 1 flr twist utlet has prved t be mst effective. This applies fr use in ffices with mre r less even specific heat lads and in rms with different lcal heat lad factrs such as EDP rms r cntrl rms. We recmmend an air utlet vlume flw rate in the machinery zne f abut. l/s ( m /h) and in the ccupied zne f maximum l/s ( m /h). Minimum air utlet spacing f wrkplaces with cntinual presence f persnnel must be 1 m. A denser air utlet placement is mre effective fr specific heat remval frm the machinery zne. Here it is better t use size DN 1, since the flr tiles can accmmdate up t fur air utlets, depending n measurements. Size DN 1 thus enables an exact adjustment f the supply air vlume flw rate t different lcal machinery heat lads. DS E Bl. 0.0

11 Flr twist utlets Types available and features DS E Bl. 0.0/1 Size DN 0 Selecting air utlets with large vlume flw rates has the fllwing advantages: lw number f air utlets, few apertures in raised flr, few supply pipes with direct duct cnnectin, lw investment csts. In such cases the use f size DN 0 has prved t be effective. The vlume flw rate is fur times larger than with size DN 1. It amunts t max. l/s (0 m /h), in the ccupied zne max. l/s (1 m /h). Due t the large (lcal) vlume flw rate, higher jet velcities ccur in the near zne f the utlet as cmpared with size DN 1. A brief spell abve the air utlet is nt, hwever, uncmfrtable. Types available Size mpnent DN 1 DN 0 Materials 1) P Al St P Al St Twist element Fr installatin in thrugh bre: lamp insert with clamp cllar SR with claw fastener SK with clamp nut SM Fr installatin in thrugh and stepped bre Distributr basket Standard type VS with thrttle device VSD ) ) ) ) Shrt type VK Lw type VN with thrttle device VND ) ) Perfrated sheet metal type with thrttle device VPD ) ) Shrt type with fixed damper VL nnectin bx withut V-damper in cnnectin spigt with V-damper in cnnectin spigt ) = available 1) P = plycarbnate; Al = aluminium; St = galvanized steel; ) V-damper unnecessary fr distributr basket with thrttle device ) On request ) Standard lck ) Optinal lck ) Only cmbinable with aluminium type Features Fr turbulent mixing air flw in the cmmercial sectr with air supply frm the flr Installatin in cnventinal raised flr systems Air supply direct frm the pressurized plenum r via cnnectin bx with flexible tubing High-inductin, rtatinally symmetric, stable vertical jet Supply air flw in the directin f thermal flw, frm flr t ceiling Intensive admixture f supply air and indr air High ventilatin efficiency Max. temperature difference supply air return air ± K Supply air temperature - Lw sund pwer level Min. distance between air utlet and seat apprx. 1 m t 1. m Air vlume flw rate. l/s ( m /h) fr DN 1 and l/s ( 0 m /h) fr DN 0 Available in sizes DN 1 and DN 0 Flr installatin by insertin in a stepped bre r installatin with a clamp insert in a thrugh bre f flr tile Fastening f clamp insert t the flr tile either with clamp cllar r claw fastener, als with clamp nut in the plastic ptin Twist element and clamp insert DN 0 made f plycarbnate r aluminium, cnnectin bx made f galvanized steel The DN 0 twist element can be lcked against unauthrized remval; this lck is standard if clamp insert is made f plycarbnate, ptinal if clamp insert is made f aluminium Different distributr baskets made f plycarbnate and steel, with r withut thrttle device Shrt type with fixed damper fr lw vlume flw rates fr use in assembly rms an be walked ver, driven ver and can supprt a wheelchair

12 Flr twist utlets made f plastic Tender text Type cde DB EK DN Flr twist utlet Functin / Kind Size Distributr basket lamp insert nnectin type Functin / Kind: E = EDP and ffice K = Plastic Size: DN 1 and DN 0 Distributr basket V VS = Standard type VSD = Standard type with thrttle device VK = Shrt type VN ) = Lw type VND ) = Lw type with thrttle device VL ) = Shrt type with fixed damper lamp insert SO = Withut clamp insert (installatin in stepped bre) SM = lamp insert with clamp nut SK = lamp insert with claw fastener SR = lamp insert with clamp cllar ) nnectin type: D = Pressurized plenum; K = nnectin bx Tender text... Units Air utlet fr flr installatin with high inductin effect in flr zne fr rapid reductin f air discharge velcity and intensive energy exchange with indr air; air utlet cnsisting f: Twist element with radial slts t generate twist effect, Standard distributr basket with surrunding slts in basket casing including thrttle device fr reductin f supply air vlume flw rate as required fr the individual air utlet. Shrt distributr basket with surrunding slts in basket casing, best fr lw raised flrs, withut thrttle device. Lw distributr basket ) with surrunding slts in basket casing and penable bttm, best fr raised flrs with thicker tiles and lwer plenums, including thrttle device fr reductin f supply air vlume flw rate as required fr the individual air utlet. Shrt type with fixed damper ) fr even supply air distributin when used in assembly rms r with lw air utlet vlume flw rates. lamp insert fr installatin in thrugh bre f flr tile with clamp cllar ). with claw fastener. with clamp nut. Twist element f DN 0 with lck against unauthrized remval. nnectin bx fr direct cnnectin f air utlet t a flexible tube, with V-damper adjustable frm rm 1). Air utlet can be walked ver, driven ver and can supprt a wheelchair. Materials: Twist element: lamp insert: Distributr basket: nnectin bx: lur f visible air utlet parts: painted similar t (ther clurs n request) Technical data: Vlume flw rate: Perm. sund pwer level: Lad-bearing capacity ) : Make: Type: plycarbnate plycarbnate plycarbnate galvanized steel RAL 707, dust grey;... l/s (m /h)... db(a) ref. - W... kg KRANTZ KOMPONENTEN DB EK DN 1) V-damper unnecessary fr distributr basket with thrttle device ) With vertical single lad n a central indent f mm diameter ) Available fr DN 0 ) On request fr DN 1 DS E Bl. 0.0/1 Subject t technical alteratins!

13 Flr twist utlets made f aluminium Tender text Type cde DB EA DN Flr twist utlet Functin / Kind Size Distributr basket lamp insert nnectin type Functin / Kind: E = EDP and ffice A = Aluminium Size: DN 0 Distributr basket V VS = Standard type VSD = Standard type with thrttle device VK = Shrt type VN = Lw type VND = Lw type with thrttle device VPD = Perfrated sheet metal type with thrttle device VL = Shrt type with fixed damper lamp insert SO = Withut clamp insert (installatin in stepped bre) SK = lamp insert with claw fastener SR = lamp insert with clamp cllar nnectin type: D = Pressurized plenum; K = nnectin bx Lw distributr basket with surrunding slts in basket casing and penable bttm, best fr raised flrs with thicker tiles and lwer plenums, including thrttle device fr reductin f supply air vlume flw rate as required fr the individual air utlet. Perfrated sheet metal distributr basket, including thrttle device fr reductin f supply air vlume flw rate as required fr the individual air utlet. Shrt type with fixed damper fr even supply air distributin when used in assembly rms r with lw air utlet vlume flw rates. lamp insert fr the installatin in thrugh bre f flr tile with clamp cllar. with claw fastener. Twist element with lck against unauthrized remval. nnectin bx fr direct cnnectin f air utlet t a flexible tube, with V-damper, adjustable frm rm 1). Air utlet can be walked ver, driven ver and can supprt a wheelchair. Materials: Twist element: aluminium lamp insert: aluminium Distributr basket: galvanized steel plycarbnate nnectin bx: galvanized steel lur f visible air utlet parts: natural clur (pwder-cated n request) DS E Bl /1 Tender text... Units Air utlet fr flr installatin with high inductin effect in flr zne fr rapid reductin f air discharge velcity and intensive energy exchange with indr air; air utlet cnsisting f: Twist element with radial slts t generate twist effect, Standard distributr basket with surrunding slts in basket casing including thrttle device fr reductin f supply air vlume flw rate as required fr the individual air utlet. Shrt distributr basket with surrunding slts in basket casing, best fr lw raised flrs, withut thrttle device. Technical data: Vlume flw rate: Perm. sund pwer level: Lad-bearing capacity ) : Make: Type:... l/s (m /h)... db(a) ref. - W... kg KRANTZ KOMPONENTEN DB EA DN 1) V-damper unnecessary fr distributr basket with thrttle device ) With vertical single lad n a central indent f mm diameter Subject t technical alteratins! 1

14 averin Deutschland GmbH Krantz Kmpnenten Uersfeld, 7 Aachen, Germany Phne: , Fax: inf@krantz.de,

15 Flr twist utlet type DB-E Type cde DB-E DN Flr twist utlet Material Size Distributr basket Damper lamp insert nnectin type Flr twist utlet with clamp insert Material K = Plastic A = Aluminium (DN 0 nly) Size 1 = DN 1 0 = DN 0 Distributr basket VS = Standard type VK = Shrt type VL = Shrt type with fixed damper (DN 0 nly) VN = Lw type (DN 0 nly) VP = Perfrated sheet metal type (DN 0 nly) Damper O = n vlume flw damper D = with thrttle device lamp insert SO = n clamp insert SM = lamp nut (plastic nly) SK = law fastener SR = lamp ring 1) nnectin type P = Flr plenum K = nnectin bx DS Appendix 0.0/ 1) fr DN 1 n request Subject t technical alteratin. averin Deutschland GmbH Krantz Kmpnenten Uersfeld, 7 Aachen, Germany Phne: , Fax: inf@krantz.de,