Air distribution systems. Adjustable induction outlet IN-V...
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1 ir distribution systems djustable induction outlet IN-V... DS E 0.
2 Construction and function Preliminary remarks In addition to its induction outlet with preset discharge direction ), KRNTZ KOMPONENTEN also provides the adjustable induction outlet in two types: Rotating the cylindrical single elements alters the incline of the jet channels and adjusts the jet direction from horizontal to vertical. This enables to spread the total jet as broadly as required. : Element width Discharge height. m to m, -row, -row and -row design IN-V: Element width Discharge height. m to. m design Thanks to its small width, type IN-V is eminently suited for coercial rooms requiring unobtrusive air distribution systems in the ceiling. Construction and function The linear discharge element, which is set inside the air outlet profile, consists of a number of consecutive, rotatable single elements, each with two jet channels. s the air flows through the jet channels, many single high-stability and high-induction jets form; this results in a rapid drop in jet velocity and fast equalization of supply air temperature and room temperature. I II III Fig. : Variable jet direction for total jet spread as required; I, II = alternate discharge, III = one-sided discharge The air outlet volume flow rate can thus be delivered as required to the right or to the left in line with the setting of the single elements. lso, the entire supply air can be discharged on one side only (see Fig. -III). The single elements can be closed by turning beyond the horizontal jet direction (see page ). The adjustable induction outlet is preset as in Fig. -II. If another setting (I or III) is required, the client must state it when ordering. The adjustable induction outlet generates a diffuse indoor air flow with intensive, draught-free flushing of the occupied zone. llowable indoor air velocities to EN are easily met (For layout see pages ff). For both outlet types, blank elements (without connection boxes) are available where continuous lines of outlets are required, and corner pieces where the air outlets are to be arranged at right angles to each other. If required, the diffuser element can be subsequently mounted from the room, e.g. in plasterboard ceilings, using an additional screw connection ( only). Optionally, the adjustable induction outlet can also be used as a return air inlet. Volume flow rates and max. temperature difference Induction outlet IN-V Volume flow rate l/(s m) m /(h m) 0 a Max. temperature difference DJ between supply air and indoor air IN-V K when cooling + K when heating DS E p. 0. Fig. : and IN-V, design Fig. : djustable induction outlets with connection boxes ) See publication No. DS
3 Construction and function Setting of air discharge elements The single elements inside the outlet profile are preset at the factory; those of type are also protected against unintentional alteration of setting. Resetting can be easily done on site using a key, as is shown below. IN-V Standard setting of discharge direction When used for supply air, the outlet is supplied with a preset discharge angle of 0, which ensures a broad spread of the total supply air jet. This angle may vary a little depending on the temperature difference and the structure of the ceiling surface. Supply air.. Setting: L. R. Return air 0 Setting: L0 Discharge direction Left (L) Supply air R0 Discharge direction Right (R) Fig. : Standard setting of discharge direction Setting: L0 R0 Discharge angle I approx. 0 a a Setting: L R II approx. 0 (standard) Fig. : ir jet pattern made visible with smoke tracer a a DS E p.. a Setting: L. R. Setting: L Corner piece Closed position Return air R or L R. or L. R or L a. Note: R a In continuous lines of outlets using blank elements, the single element settings should be the same at all units. Connection and suspension The outlet connection to the air ductwork is done via a connection box which, for higher insertion loss, is optionally available with acoustic lining. t the side of the connection box is a spigot for connection to a circular duct; this spigot can be optionally fitted with a volume flow damper which will be adjustable from the room (see page ). For suspension from the ceiling the induction outlet is fitted with endwise suspension strips. To stabilize the vertical mounting position, it can be additionally fastened to the ceiling via a lateral suspension bracket a. Fig. : and IN-V; examples of settings of jet direction from horizontal to vertical, as well as closed position
4 Construction design of with flush contact profile for false ceiling; connection box without acoustic lining with fixed support profile ; connection box with acoustic lining and volume flow damper a L - L - L C ø D ) c ) Flush contact profile (e.g. for metal ceilings) + L Ceiling support profile (e.g. for plasterboard ceilings).. design -row to -row design + design + -row to -row design Key for all pages ir outlet profile Flush contact profile Ceiling support profile c Endwise angle piece ir discharge element Jet channel lignment piece Connection box Connection spigot Volume flow damper (optional) coustic lining (optional) djusting device Suspension strip a Suspension bracket False ceiling ore for suspension a Quick fastener (by others) b Threaded rod (by others) ir outlet profile, with lateral ceiling support profile L c ) View Type Design -row -row -row ir outlet Connection box ) Length Volume flow rate V Discharge L ) l/(s m) m /(h m) height m C D L G ) kg ) Other lengths and greater heights on request; for : length L = number of single elements x ) ccessories: endwise angle pieces c for, supplied loose, with fastening screws ) Connection box with or more spigots on request ) Weights stated for design with acoustic lining; without acoustic lining the values are reduced by up to 0. kg L E DS E p. 0.
5 Construction design of IN-V IN-V with flush contact profile for false ceiling; connection box without acoustic lining IN-V with fixed support profile ; connection box with acoustic lining and volume flow damper a L - L - L C ) c ) ø D + L Flush contact profile (e.g. for metal ceilings) Ceiling support profile (e.g. for plasterboard ceilings) L c ) + ir outlet profile IN-V, with lateral ceiling support profile View + ir outlet Connection box ) Type Design Length Volume flow rate V. Discharge L ) height C D L G ) L E l/(s m) m /(h m) m kg 0. IN-V Suspension examples lank element with standard quick fastener (by others) DS E p. 0. View Suspension with threaded rod M and lock nuts L b Top view (View ) ø View Suspension with quick fastener a ) Other lengths and greater heights on request; for : length L = number of single elements x ) ccessories: endwise angle pieces c for IN-V, ø x supplied loose, with fastening screws ) Connection box with or more spigots on request ) Weights stated for design with acoustic lining; without acoustic lining the values are reduced by approx. 0. kg
6 Corner pieces and adjustment of volume flow damper ( and IN-V) Corner pieces For arranging air outlets at right angles to each other, e.g. for getting square or rectangular areas, corner pieces are available as accessories for in the to -row design and for IN-V in the design. The single elements are in closed position (see page ). Fig. : Corner pieces for, -row design, with lateral ceiling support profile (bottom) and for IN-V with flush contact profile (top) Fig. : djustment of volume flow damper from below at perforated slide (perforation Ø ) using a rod, e.g. a screwdriver Length L E + for ceiling support profile Length L E for flush contact profile Length L E for flush contact profile Length L E + for ceiling support profile Length L E +. for ceiling support profile. Length L E for flush contact profile Note: Dimensions ) page IN-V page ) Other or unequal side lengths on request. Length L E for flush contact profile Length L E +. for ceiling support profile DS E p.. Width for flush contact profile Width + for ceiling support profile Fig. : Sketches of corner pieces for ; to -row design (-row design shown here). + Flush contact profile Ceiling support profile for IN-V; design
7 Installation of the from the room Installation of the from the room ) Sound power level and pressure drop For installation from the room, the diffuser elements and the connection boxes are supplied separately. Fig. a shows the shaft system (ceiling support profile) for plasterboard ceilings. In this case the connection boxes are mounted prior to the installation of the suspended ceiling and connected to the air ductwork. The diffuser elements are installed only upon completion of the room ceiling. Fig. b shows the push-in system (flush contact profile) for metal ceilings. Expansion brackets for blank elements are used for metal or plasterboard ceilings, see Fig. c. The adjustable induction outlet is quiet. For sound power level and insertion loss in relation to octave band centre frequency, see pages. The sound power level of the air outlet with lined connection box is lower by about d() ref. - W and its insertion loss is much higher. The pressure drop is not changed by the lining. ) Solution for the IN-V on request Fig. b: Installation from room in metal ceilings, push-in system with flush contact profile Fig. a: Installation from room in plasterboard ceilings, shaft system with ceiling support profile DS E p.. H tot = Clamping range 0 Fig. c: Installation of blank elements in metal or plasterboard ceilings, with expansion brackets (optional) Fig. : Different systems for installation from the room
8 Layout sheet Comfort criteria ) The outlet layout must comply with the maximum allowable indoor air velocities u in the occupied zone in the cooling mode. The indoor air velocity depends on the cooling load that is to be removed from the room. The maximum specific cooling capacity q depends on the discharge height and the maximum allowable indoor air velocity u (Graph ). Graph enables to determine for the cooling mode the maximum specific volume flow rate V Sp max in relation to the maximum specific cooling capacity and the maximum temperature difference DJ max. The volume flow rate supplied to the room V Sp tats may not exceed this value. Graph enables to determine the minimum centre spacing between two outlet rows on the basis of the maximum specific volume flow rate. ) See our brochure ref. T Layout specifications for thermal comfort Temperature difference max K K Maximum specific volume flow rate V Sp max in l/(s m ) Maximum specific cooling capacity q in W/m Discharge height H in m. ir outlet centre spacing t min in m. and IN-V Max. specific volume flow rate V Sp max in l/(s m ) Maximum allowable indoor air velocity u in m/s ir outlet volume flow rate V in l/(s m) Graph : Maximum specific volume flow rate. to. ir outlet centre spacing t min in m Max. specific volume flow rate V Sp max in l/(s m ) DS E p ir outlet volume flow rate V in l/(s m) Graph : Minimum air outlet centre spacing
9 Layout as supply air outlet V max m /(h m) l/(s m) 0 0 -row V l/(s m) 0 0 -row 0 -row V min V min -row -row -row -row 0 V min -row -row ir outlet length L 0 and 0 0 and 0 V min. Discharge height H in m Sound power level L W in d() ref. - W Total pressure drop p t in Pa V max m /(h m) l/(s m) 0 IN-V V l/(s m) V min =. l/(s m).. Discharge height H in m ir outlet length L ir outlet length L 0 and 0 0 and 0 0 and 0 0 and 0 Sound power level L W in d() ref. - W Total pressure drop p t in Pa DS E p. 0. Layout example Induction outlet Length / Design Supply air volume flow rate V Discharge height H Room area Max. allowable sound power level L W Comfort criteria (see page ) Max. allowable indoor air velocity u Max. specific volume flow rate V Sp max at DJ max = K [from Graph on page ] ctual specific volume flow rate V Sp tats [from : ] Criterion is met if V Sp tats < V Sp max From nomogram: V max V selected Z [from : ] Z [from : ] L W Dp t t min [from Graph on page ] 0 / -row l/s. m 000 m d() ref. - W 0. m/s. l/(s m ). l/(s m ) l/(s m) l/(s m) m units d() ref. - W Pa, m The graph values for sound power level and pressure drop apply for an induction outlet with connection box fitted with acoustic lining, discharge direction 0 to as well as built-in volume flow damper in position open. If the connection box is without acoustic lining, the sound power level is higher by d() ref. - W, but the pressure drop remains unchanged. If the volume flow damper is closed, the sound power level rises by d() ref. - W while the pressure drop doubles or even triples. Key for layout: V = volume flow rate per air outlet in l/(s m) V max = max. volume flow rate per air outlet when cooling in l/(s m) V min = min. volume flow rate per air outlet when cooling in l/(s m) V Sp max = max. specific volume flow rate per m of floor area in l/(s m ) V Sp tats = actual specific volume flow rate per m of floor area in l/(s m ) u = max. allowable indoor air velocity in m/s q = max. specific cooling capacity in W/m DJ max = max. temperature difference supply air to return air in K t min = minimum air outlet centre spacing in m H = discharge height in m L W = sound power level in d() ref. - W Dp t = total pressure drop in Pa
10 Sound power level Supply air ) ir outlet volume flow rate Total pressure drop Connection box with acoustic lining Sound power level L W in d ref. - W Total pressure drop Connection box without acoustic lining Sound power level L W in d ref. - W V Dp t L W Octave band centre frequency in Hz Dp t L W Octave band centre frequency in Hz l/(s m) m /(h m) Pa d() 0 0 K K K Pa d() 0 0 K K K 0. 0 design Length in row design Length in row design Length in row design Length in IN-V design Length in DS E p ) Sound power levels apply for volume flow damper in position open
11 Layout as return air inlet Insertion loss V max m /(h m) l/(s m) row -row -row -row -row -row The graph values for sound power level and total pressure drop apply for an induction outlet with acoustic lining and open volume flow damper. If the damper is closed, the sound power level rises by d() ref. - W while the pressure drop doubles. ir outlet length L ir outlet length L 0 and 0 0 and 0 0 and 0 0 and 0 Sound power level L W in d() ref. - W Total pressure drop p t in Pa V max m /(h m) l/(s m) IN-V 0 DS E p. 0. -row -row -row IN-V Insertion loss in d Connection box with acoustic lining Octave band centre frequency in Hz Mean Insertion loss in d Connection box without acoustic lining Octave band centre frequency in Hz 0 0 K K K K value 0 0 K K K K ir outlet length L 0 and 0 0 and 0 ir outlet length L 0 and 0 0 and 0 Sound power level L W in d() ref. - W Total pressure drop p t in Pa Mean value
12 Sound power level Return air ) ir outlet volume flow rate Total pressure drop Connection box with acoustic lining Sound power level L W in d ref. - W Total pressure drop Connection box without acoustic lining Sound power level L W in d ref. - W V Dp t L W Octave band centre frequency in Hz Dp t L W Octave band centre frequency in Hz l/(s m) m /(h m) Pa d() 0 0 K K K Pa d() 0 0 K K K 0. 0 design Length in row design Length in row design Length in row design Length in IN-V design Length in DS E p ) Sound power levels apply for volume flow damper in position open
13 Features and type code Features Type code DS E p. 0. Single jets discharged in alternate directions or in one direction only, jet direction adjustable from horizontal to vertical; outlet protected against unintentional alteration of setting ( only) Two types available in to -row design, volume flow rate to l/(s m) [ to 0 m /(h m)] IN-V in one-row design, volume flow rate to l/(s m) [ to m /(h m)] Usable as supply air outlet or return air inlet Good visual integration into ceiling thanks to small width of visible air outlet profile, in particular that of IN-V (only wide) Subsequent installation of diffuser element possible from the room (e.g. for plasterboard ceilings) Diffuse, draught-free indoor air flow Discharge heights: from. to m with, from. to. m with IN-V Max. temperature difference between supply air and indoor air: K when cooling, + K when heating Low sound power level Optional volume flow damper adjustable from room Connection box optionally fitted with acoustic lining Lengths: 0, 0, 0 and 0 (other lengths on request) ir outlets easy to mount in lines; alignment pieces are provided with the outlets to enable exact alignment lank elements (without connection boxes) are available as options where continuous lines of outlets are required Corner pieces available for 0 outlet arrangement Endwise angle pieces available as options to fit ceiling support profiles (supplied loose, including fastening screws) ir outlet profile made of aluminium anodized in natural colour or painted to RL 0 pure white ), discharge element made of polycarbonate (body-tinted in black similar to RL 00 or in white similar to RL 0) ), connection box made of galvanized sheet metal ) Other colour for air outlet profile or discharge element on request IN-V_. / _ _ Induction outlet Function / Kind Outlet rows Length Function / Kind Connection type Option Damper Insulation Supply/Return air = (Element width ) = IN-V (Element width ) Outlet rows ( only) Surface finish Profile type = row = rows = rows = rows Length Colour of discharge element = 0 0 = 0 0 = 0 0 = 0 Connection type K O G = connection box = blank element, open at rear, for continuous lines of outlets, without connection box = blank element, closed at rear, for continuous lines of outlets, Option ( only) V M S O Damper O R Insulation O I without connection box = connection box/diffuser element assembly = installation of diffuser element from room = expansion bracket for blank element = blank element without expansion bracket = no volume flow damper = with volume flow damper adjustable from room = without acoustic lining = with acoustic lining Supply/Return air Z = supply air, for alternate discharge 0 Z Z IN-V Z = supply air, for alternate discharge 0 (standard) = supply air, for -way discharge = return air = supply air = return air Surface finish elox = aluminium anodized in natural colour (EEV) 0 = face painted to RL 0, semi-matt. Profile type D = face painted to RL. = flush contact profile = ceiling support profile Colour of discharge element S = black similar to RL 00 W = white similar to RL 0
14 Tender text Tender text lank element... units djustable induction outlet ) of small width, with high induction effect for diffuse indoor air flow and high thermal comfort in the occupied zone, well suited for installation in suspended ceiling systems, with discharge direction adjustable from horizontal to vertical as required, for use as supply air outlet or return air inlet,... units Induction outlet with linear discharge element and air outlet profile as described before, but without connection box, as blank element for continuous lines of outlets where required, open or closed at the rear; for optional fastening with expansion brackets consisting of: linear discharge element with consecutive cylindrical and rotatable single elements for alternate air discharge to the right and to the left or one-sided air discharge, or even in closed position; to -row design (only design for IN-V) air outlet profile for lateral attachment of false ceiling, or with lateral ceiling support profile connection box with endwise suspension strips and lateral bracket for stabilizing the vertical mounting position, optional volume flow damper adjustable from room; optional acoustic lining; connection box for optionally prepared for subsequent mounting of diffuser element from the room ccessories... units Corner piece for outlet arrangement at 0, to fit air outlet profile and linear discharge element as described before... units Endwise angle piece to fit ceiling support profile as described before, supplied loose, with boreholes and fastening screws Make: KRNTZ KOMPONENTEN Material: Linear discharge element made of polycarbonate, body-tinted in black similar to RL 00 ) or white similar to RL 0 ) ir outlet profile made of aluminium anodized in natural colour or painted tor RL 0 ) pure white Ceiling support profile made of aluminium anodized in natural colour or painted to RL 0 ) pure white Connection box made of galvanized sheet metal Make: Type: KRNTZ KOMPONENTEN IN-V_. / _ _ Subject to technical alterations. ) If the adjustable induction outlet is required for use as return air inlet, the tender text is the same as for the supply air outlet ) Other lengths and colours on request DS E p.. Caverion Deutschland GmbH Krantz Komponenten Uersfeld, achen, Germany Phone: + -, Fax: + - info@krantz.de,
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