LINEAR SLOT DIFFUSERS - TECHNOFAB ENG
LINEAR SLOTDIFFUSERSCHAPTER 3
LINEAR SLOTDIFFUSERSCONTENTS01Introduction, Features & Characteristics.02Operating Range, Multi Sections, End Cap / Flange Arrangements.03MHered Corners, Linear Slot Diffusers in Curved Shape.04Single and Multiple Slot Pattern Adjustment, Construction and Dimensional Details.05Available Models.06Mounting Instructions.07- 09Selection Diagrams, Vertical Discharge.10 - 12Selection Diagrams, Horizontal Discharge.13Throw and WaD Effect for Vertical Discharge, Using SelectionDiagrams, illustrative Examples.14 - 16Performances at Selected Values of Air Flow Rate.17Ordering Data.TFE Linear Slot Diffusers have been designed tosatisfy architectural concepts that require continuouslength applications without compromising airdistribution performance. A combination of engineeringexcellence and architectural appeal in a single product isprovided in this type of units.Linear Slot Diffusers for supply air applications areusually installed in ceilings or high side walllocations, the design of these units features anadjustable supply air pattern and makes themparticularly suitable for open office perimeter zones,main floor entrance foyers and lobbies, elevatorlobbies, conference rooms, mall atriums and theatres. Construction: Frame, Core & Deflection Blades aremade of high quality Extruded Aluminium Profiles of6063 Alloy. Hit - and - Miss Damper Material: made of Pre-paintedAluminium coils of 3005 Alloy in matt black color finish.Features & Characteristics: Frame Flange Width: 28 mm. Available in 1 to 8 Numbers of Slots. Available in three different slot widths (openings):- 20 mm (3/4) as standard.- 16 and 25 mm (5/8 and 1) as option. The design of linear slot diffusers provides a fullflexibility in volume and air pattern control. The Volume Control Damper (Hit- and - Miss Damper)installed in the rear part of the linear slot diffuserconsists of two Aluminium strips, the rear one is fixedand the other one is sliding. Both the Hit and Miss strips are having 10 x 10 mmsquare holes. Adjacent holes are spaced in 10 mmdistances also. Manually and from the slot face opening, the air flowrate can be adjusted by moving the sliding part of theHit- and - Miss damper left or right. The Volume Control Damper (Hit- and - Miss Damper)is designed in a unique way that it can be used as anequalizing grid. Air pattern can be directed vertically or horizontally bymeans of Deflection Blades in fully 180 degree rangewithout changing the air flow rate. These blades can bemanually adjusted from slot face opening. The Adjustable Deflection Blades allow for the airpattern to be directed along the ceiling, straight downor at some intermediate setting. To maintain perfect and unbroken appearance forcontinuous runs, alignment joining strips are providedin proper lengths and quantities with no extra cost. Also, End Cap pieces to be provided in proper sizes asrequested with no extra cost. Mounting Instructions: see page No. LD - 06. Surface Finishes: see page No. LD- 17.LINEAR SLOT DIFFUSERS3
MITERED CORNERSCFM Values are based on: Length of one metre Noise level ranging from 15-25 (dB). Vertical Discharge without wall effect Corners are always supplied in 300 mm adjacent sides as standard unless otherwise specified or requiredFeatures & Characteristics: Above arrangements are approximate and subject to change according to order / site conditionsEnd Cap / Flange Arrangements Open Ends End Cap at One side End Cap at Both side Curves can be fabricated in minimum curvature radius 1 mtr. Curve applications are not possible for side wallinstallments End Cap at Both Terminal Sides (Multi Sections)4LINEAR SLOT DIFFUSERS5
Single and Multiple Slot PaHern AdjustmentAvailable ModelsConstruction and Dimensional DetailsModel SLD SLD: is Supply Air Linear Slot Diffuser c/w Deflection Blades & Hit and Miss Damper. Two deflectors per slot provide an adjustable air pattern of fully 180 degreesModel RLDSingle and Multiple Slot PaHern Adjustment RLD: is Return 1 Extract Air Linear Slot Diffuser w/o Deflection Blades & Hit and Miss Damper.Model OLDSNF:Slot Opening1 Width.:Neck Size.: Face Size.All dimensions are in mm and subject to 1 mm tolerance. All dimensions are in mm and subject to mm tolerance.6LINEAR SLOT DIFFUSERS7
Engineering and Performance DataVertical DischargeMounting InstructionsSlot Opening / Width 16mmWith Plenum Box (provided by others):Fix the plenum to the ceiling. The plenum hasa border in the lower part by which the upperpart of the diffuser can be inserted into it. Yourdiffuser is provided with ceiling mounting fixingU - Channels. These channels are inserted intothe keyway and should be slid into the finalposition corresponding to the opposite fixingpoint previously prepared on the U - Bracket asshown(plenums usually supplied with thesebrackets). The two elements (diffuser andplenum) can be attached together using selftapping screws and screw driver. The diffusershould be made level using a water level and byadjusting the screw positions (left, right, up anddown) as shown.Without Plenum Box:In this case the diffuser can beattached to U - Shape bracket(provided by others) and restdirectly on the ceiling as shown.Diffusers in Continuous Running:Normal installations as described above but, besidesapply the provided joining key strips between the diffuser8adjoining sections. After insertion and alignment of thejoined sections set diffusers in the final position. Performances are based on a length of one metre andwith no wall effect. Hit-Miss Damper at full open position. For Return / Extract applications select performancedata using above charts and correction table afterignoring throw values. Noise Level values are based on 1dB room attenuation.LINEAR SLOT DIFFUSERS9
Engineering and Performance DataVertical Discharge Performances are based on a length of one metre andwith no wall effect. Hit-Miss Damper at full open position. For Return / Extract applications select performance10Slot Opening / Width 20 mm (standard)data using above charts and correction table afterignoring throw values. Noise Level values are based on 10 dB roomattenuation.Vertical DischargeSlot Opening / Width 25 mm (standard) Performances are based on a length of one metre andwith no wall effect. Hit-Miss Damper at full open position. For Return / Extract applications select performancedata using above charts and correction table afterignoring throw values. Noise Level values are based on 10 dB roomattenuation.LINEAR SLOT DIFFUSERS11
Engineering and Performance DataHorizontal Discharge Performances are based on a length of one metre Hit-Miss Damper at full open position. For Return / Extract applications select performancedata using above charts and correction table afterignoring throw values.12Slot Opening / Width 16 mm Noise Level values are based on 10 dB roomattenuation.Horizontal Discharge Performances are based on a length of one metre. Hit-Miss Damper at full open position. For Return / Extract applications select performancedata using above charts and correction table afterignoring throw values.Slot Opening / Width 20 mm (standard) Noise Level values are based on 1 dB room attenuation.LINEAR SLOT DIFFUSERS13
Engineering and Performance DataHorizontal DischargeSlot Opening / Width 25 mmThrow and Wall Effect for Vertical Discharge Note, in case of wall effect all performance data will remain the same except that throw values are to be multiplied by 1.43Linear Slot Diffusers Selection ProcedureI.Vertical Discharge (without wall effect): (IllustrativeExample)Given Data:No. of Slots 3Slot Opening /Width 20 mm (Standard}. Length 2.5 m.Air Flow Rate 530 CFM 250 (L/S).Per one metre length 250 (LIS/2.5 m 100 (L/S)/m.Refer to page No. LD - 08 for Vertical Discharge and 20 mmslot opening and find out that:A elf. 0.048 m2 .Noise Level 22 4 26 dB (value as read from the chart andcorrected by the correction table for other lengths@ 2.5 m}.V elf. 2.2 m/s. Pt 16.8 Pa.Th.@ Vt 0.25 m/s 3.4 x 1.1 3.7 m (value as read fromthe chart and corrected by the correction table for otherlengths@ 2.5 m).Ditto,but@ 0.5 mls 1.7 x 1.1 1.9 m.In case of wall effect as shown above,only correct the throwvalues to be : Th. @ Vt 0.25 m/s 3.7 x 1.43 5.3 m.Ditto,but@ 0.5 m/s 1.9 x 1.43 2.7 m. Performances are based on a length of one metre Hit-Miss Damper at full open position. For Return / Extract applications select performancedata using above charts and correction table afterignoring throw values.14 Noise Level values are based on 10 dB roomattenuation.For Return I Extract data (if required) ignore throw values andread others as followings :Noise Level 26- 10 16 dB(see correction table).V elf. 2.2 x 0.45 1.0 m/s (see correction table). Pt 16.8x 0.65 10.9 Pa (see correction table).II. Horizontal Discharge: (Illustrative Example)Given Data:No. of Slots 4Slot Opening I Width 25 mm.Length 5.0 m.Air Flow Rate 1430 CFM 675 (LIS}.Per one metre length 675 (L/S) I 5.0 m 135 (L/S)Im. Referto page No. LD - 12 for Horizontal Discharge and 25 mm slotopening and find out that:A elf. 0.036 m2 .Noise Level 19 7 26 dB (value as read from the chart andcorrected by the correction table for other lengths @5 m).v elf. 3.8 m/s. Pt 12.5 Pa.Th.@ Vt 0.25 mls 10 x 1.1 11 m (value as read fromthe chart and corrected by the correction table for otherlengths@ 5.0 m).Ditto, but @ 0.5 mls 5 x 1.1 5.5 m.For Return I Extract data (if required) ignore throw valuesand read others after applying the same given data again buton Vertical Discharge charts (page No.LD - 09) as follows:Noise Level 17-10 7 15 dB (see correction table).V eff. 5.6 x 0.45 2.5 m/s (see correction table). Pt 10 x 0.65 6.5 Pa (see correction table).LINEAR SLOT DIFFUSERS15
16 MMS L OTSL /S per 0377.0238.8282123.1410.7312363.895.56Pt25 MMTh0.581.322.340.0 08 3.66 152.73.715225.5277.00.360.791.400.0 30 2.183.154.275.590.480.841.320.0 37 1.912.593.384.320.0 460.0 54AK0.0 10PtThNC0.3 70.8 41.5 01.82.43.1 15 15182.3 44.9223.4 14.6 36.1 30.1 36.42.1333641 151.8262933 154.6160.4 94.0 155.8227.69.132371.0 91.9 53.0 40.0 265.2187.08.2263016mmS L OT S L /S per meter20.3-1.2-2 .4180.511.78 0 .9-1.8-3 .0251.44 0.9 -1.5- 2.7202.04 1.2 -2.4-4.0264.971.8-3.0-4.641597.732.7 -4.3-7.0487111.11 4.0-5.8-8.5547.11 3.7-5 581.8-4.0-7.3396.272.7-6.1-9.43.734 1530434.55 3.4 -4.6-7.3340 .9-1.5-2 .4 150.16 0.9 -1.2-2.1 150.65 0.9 -2.7-4.6161.021.2-3.0-5.21 .5-3.7-6 .7 3120504.010.0 181.47 1.2 -3.4-6.1252.4- 5.5-8 .5 4 02.57 2.1 -4.9-7.932454.06 3.4 -6.4-9.236 15566.353.7-7.0-10.1210.5 10.9 -1.5 -3.4170.33 0.9 -1.2-3.11.751.8-3.0-6.1291.1 21.5 -2.7 -5.5230.72 1.2 -2.4-5.2183.092.1-4.3-7.6391.9 81.8 -4.0 -7.0311.27 1.5 -3.7-6.4253.1 02.7 -5.5 -8.8381.98 2.4 -4.9-8.23034154.03.5 80.3 13.17 2.1 -3.7-5.84 .0-7.6-11-.0940.0180.0 220.0 281184.843.0 -6.1-9 .7481427.384.3-7.3-1 1.3534.7 2 4 .0 -6.7 -10.4423.02 3.7 -6.1-9.5711.001.5-2.1-4.9240.6 41.2 -1.8 -4.6190.41 1.9 -1.5-4.31.8-3 .3-6.1311.1 21.5 -3.0 -5.5250.7 2 1. 2-2.7 -5.22.732.1-4.3-7.3381.7 51.8 -4.0 -6.7301.12 1.5- 3.7- 6.11423.973.0-6.1-9.4442.5 42.7 -5.5 -8.5351.632.4-.4.9- 7.9285.364.0-7.6-11.3502.203.4-6.4-9 .5321.75944381.2-1.8-3.79.430332.4 -4.0 -6.49.920.2 32.7 33.18 1.5-2.7-4.34.9 52.290.0 140.0 06 150.80 151622293842 150.0010.0 050 .3-1. 2- 2. 11182.74.66.17.9270.00494718.5NC0.79382.0 225mmTh313434AkPt1.2-2.1-3.34.3 90.0 38PtNC2.786.0 20.5 10.9 01.4 0AkTh3571320mmNC2447 15 80.0240.0 300.0 3820244.9160.5 44.6 151653.4 3 3 .7 -7.0 -10.4405.8220.8 418941.341.8-2.4-5.5260.8 61.5 -2.1 -4.9210.55 1.2-1 .8-4. .6177.6261.2 25.27.0211182.062.4-3.7-6.7331.3 22.1 -3.4 -6.1260.841.8-3.1-5 .5218.5251.22 2.4-4 .0-6. .4249.40.0 46311.6 6332.1 6262.7 60.3 60.5 50.7 94.04.95.830 15 15161.0 97.3208.2220.560.861.241.704.35.26.437 1515207.9252.212.793.459.1281.4 11.7 92.2 10.610.891.221.574.33135 700.0 21 16286.111.3111854.3949443.665.7283118320 MM6.4188.22225279.835S Y MB OL SC ONDIT IONSL /S: A ir volume in liter per s ec ond.* S upplyAk: E ffec tive fac e area in meter S quare per 1000 mm.* Vertic al dis c harge flow pattern.P t.: To tal pres s ure in millimeters water gauge.* Nois e C riteria valuesT h.: T hrow in meters .* Damper isNC: Nois e C riteria.* T hrow values0.0 580.0 68562.983.0-4.6-7.6381.9 12.7 -4.3 -7.0301654.053.7-6.4-9.7432.5 93.4 -5.8 -8.8341.6 6 2. 8-5 .2. 7.9271895.31 4.3-7.6-11.0493.4 0 4 .0 -7.0 -10.1392.1 8 3. 7-6 .4. 9.2311181.591.8-2.7-5.5281.0 21.5 -2.4 -4.9220.65 1.2 -1.8-4 .3181422.272.4-3.7-6.7351.4 52.1 -3.4 -6.1280.9 3 1.8 -3.1-5 .5223.093.0-4.9-7.9391.9 82.7 -4.6 -7.3311. 27 2. 4-4.0 -6.7254.05 3.3-6.4-10.0442.5 93.0 -5.8 -9.1351.6 6. -5.2 -8.22.7285.16 4.0-7.6-11.3483.303.7-7.0-10.438.2 .11. -6.4 -9.53.43014216518921225280.0300.037L /S: A ir volume in liter per s ec ond.Ak: E ffec tive fac e area in meter S quare per 1000 mm.* T he large throw values are bas ed on the minimum terminal velocity of 0.25m/S ec.* T he middle throw values are bas ed on the middle terminal velocity of 0.50 m/S ec.* T he s mall throw values are bas ed on the maximum terminal velocity of 0.75m/S ec. 150.5 70.7 84.6 155.87.6 15P t.: Total pres s ure in millimeters water gauge.1.0 018T h.: T hrow in meters .1.2 88.920NC: Nois e C riteria.are bas ed on(10 db) room attenuation.0.0 58NO TE S4.022280.0 460.0 48S Y MB OL S0.3 91.5 92.2 80.0 38C ONDIT IO NS*S upply* Horizontal Dis c harge flow pattern* Nois e C riteria values are bas ed on (10 db) room attenuation.**Damper is fully open.T he tes ted s pec imens were of 1000 mm lengthfully open.are bas ed on terminal veloc ity of 0.50 m/sLINEAR SLOT DIFFUSERS17
Ordering DataAvailable Surface Finishes for Linear Slot Diffusers:*S .I. UNIT S16m mS L OTSL /S per meter12345NCPs25mmNC353. 3824475.9 5312.163.8119251.382.441520599.1 3405.84323.74267113.8 1498.84395.66318318. 665511.94447.6435713.9 72483945.8 07. 19313611811. 32914215 .8 853943.9 72510.162.5442206.501.633416261186.1 9333.962.53211428.9 4395.72313.662516521212 .1 420 .1 646547.7712.9037434.978.2630341426.3 4284.06222.60181651898.6 111.1 135405.517.1128323.534.55222623616 .7 84810.74386.873028324 .9 2551421894. 44267. 863515.952.845.0344212810.211.823.2235172223612 .3 0437.873428317 .6 624 .02485511.3015.3738443306Ps20mmPsNC5.047.239.84 Na1ural I Matt Silver Anodized. Powder Coating (Standard Colors are white RAL 9010/9016, other optional colors if required to be providedin RAL-No. only and charged extra). Aluminium in Mill Finish. Other Special finishes (on request if available). Available Surface Finishes For Hit- and - Miss Damper & Deflection Blades: Matt Black Powder Coating only as standard. Ordering Specifications:SpecHy:1. Linear Slot Diffuser Description (Supply, Return,Extract, Dummy, etc.).2. No. of Slots.3. Linear Slot Diffuser Length.4. Quantity.5. Linear Slot Diffuser Surface Finish.6. RAL- No. (Only mention if powder coating surfacefinish is required).7. Curve (only mention if required in curved shape).8. End Caps (to be mentioned as required).9. Slot opening /width (only indicate if not standard, i.e.for 16 or 25 mm only).Example 1:2730351896.1 9292369.6 4363.966.1723292.533.95182328313 .89448.89355.692833037818 .8624 .69495512.0715.8039447.7210.113135Example 2:S Y MB OL SL /S: A ir volume in liter per s ec ond.P /s: Negative s tatic pres s ure in milimeters water gauge.NC: Nois e C riteria.Example 3:C ONDIT IO NS* R eturn* Damper isfull open.* Nois e C riteria values are bas ed on(10 db) room attenuation* T he tes ted s pec imens18were of 1000mm lengthLINEAR SLOT DIFFUSERS19
* IMP E R IAL UNITS3/5’’S L OTS C MF P er F ootAk151Pt4/5’’NCAk0.0230.0520.0920.0 25 0.144230.0360.081810 6 30.0381539 261500.1530.2191201800.138ThNCS L OT S C F M P er F ootAkPtNCThAk1”ThNC0.0311-4-8 1 50.0703-6-102 10.125 5-9-1429Pt0.01 07 15150.0481-4-8 15180.02 38 15230.1094-7-10.04 111 1 5300.1956-10-153618230.06 117180.2100.2850.3770.3059-15-23432329380.08 621230.1 95 8 -13 -2132370.1 1326450.438 14-19-29490.2800.15 030150 .0 1 63 -6 -9180.0100.0080.0307 150.00 651-19200.01 2110.0670.1200.187192530150.0240.0350.1 73 0.0480.0620.0790.0980.140 15180.03 10.81 815211722330.12 626260.19 4310.26 634153943 15 15201826312530340.10 927380.14 23013 150.00 916 15192531141721180.00 91.19 0161.82 3*3 60.1017-16-2529410.16010-21-30330.247 10-20-3045750.391 14-25-35510.250300.0314-6-12160.0 203-5-11 150.0133-5-10 15450.0696-10-20240.0 445 -9-18190.0284-8-15150.122 7-15-25340.0 786 -13-23270.0505-12-21220.19 1 1 0-20 -32430.1 12 -20 -310.0163-5-132460260.0 445 -10-18210.0 284 -9 -1 60.0445-1 1-200.03 6114 150.0696-11-190.108 7-15-2433900.156 10-20-30391050.21 1 14-25-37450.1 35210.0 34750.07814 1516 15600.053 6-8-182218750.081 8-13-2228900.1 17 10-16-2533282250.0980.10 2231050.159 13-21-32380.12 1261200.209 15-25-3644750.0636-10-1823900.089 8-12-23300.01 313 150.02 115 1519150.03 9231727190.07 4220.1 11250.03 319 150.04 824160.05 829170.06 70.10 66are bas ed on(10 db) room attenuation.fully open.1051201351825220.1580.1 1928 1560380.1 180.12210-17-270.159 1 1-21-330.203 13-25-37340.0970.1230.14839430.12130 1517210.0 696 -13-22260.1 009 -18-28310.0648-16-2 512-23-34360.08610-2 1-315 -7-16170.0224-6 -14 1 5220.0336-10-1 8180.0488-12-2 1210.0 527-11-200.0 759 -14-230.1 0211-19-2926300.0 651 0-1 7-2 6240.0 861 1-2 1-3 0280.1 3413-23-33350.0 405 -8-16184-7 -14 156 -10 -18190. 05 08- 13 -2 122310.0 659 -1 7-2 725340.0 8311-2 1-3 1270.0 577-11-20240.0 789 -15-24270.1 020.1301 0-19-3012-23-340.15425290.02 60.0 360.185S Y MB OL SNO TE SCFM: A ir volume in c ubic feet per minute.Ak: E ffec tive fac e area in meter S quare feet per feet.* T he large throw values are bas ed on the minimum terminal velocity of 50 fpm.* T he middle throw values are bas ed on the middle terminal velocity of 75 fpm.* T he s mall throw values are bas ed on the maximum terminal velocity of 150 fpm.P t.: Total pres s ure in inc hes water gauge.T h.: T hrow in feet.NC: Nois e C riteria.C ONDIT IO NS** Damper is4-1 1-2015 15182123: T hrow in feets .3-9-150.0584 -6-152127: Nois e C riteria.8-1 8-280.0260.0561 3-22-34 15NC162 70.0 2515T h.4-10-175-12-2 2 153-5-70.1 860.02 6* Nois e C riteria values0.0400.0900.00648 15: To tal pres s ure in inc hes water gauge. 1 51917P t.310.29 1 1 5-24 -36 15* Vertic al dis c harge flow pattern.0.179 10-15-230.039 5-7-1713: E ffec tive fac e area in meter S quare feet per foot.39450.01 7Ak2720 15* S upply0.125 7-12-192314: A ir volume in c ubic feet per minute.23340.04 90.08 10.06 9CFM17900.05 1C ONDIT IONS3-5-95-8-131621S Y MB OL S0.0450.0800.023 15242731310.0453-5-8 151426323412-17-2 60.020 1-3-7NC18302.14 53 155-10.141 6-13-250.018Th0.03 80.07 733 15 150.0630.03626Pt0.02 40.04 322272945171Ak750.02 01.50 070.014302 150.03 90.08 291 1528S upply* Horizontal Dis c harge flow pattern* Nois e C riteria values are bas ed on (10 db) room attenuation.**Damper is fully open.T he tes ted s pec imens were of 3ft lengthT hrow values are bas ed on terminal veloc ity of 75 fpm* T he tes ted s pec imens20Pt 150.0870.1100.1362939At4/5”9120.1700.0220.0340.1 47 0.0490.06726NC3/5 ”70.1240.1680.2200.0190.0330.1 21 0.0520.0750.1020.133231057560.0520.1596090 150.117135515Th0.2700.3700.0140.0310.0 96 0.0550.08643480.0300.0810.0 66 150.0480.077120410 150.08660PtTh*IMP E R IA L UNIT S1’’were 3ft lengthLINEAR SLOT DIFFUSERS21
*IMP E R IA L UNIT S3/5’’S L OTSPsC F M per foot1235NC190.0850.15015210.054 15260.09617380.3 59350.230280.14722450.5 44440.348350.23328530.7 34500.470400. 30132450.1 5619 150.2 280.2 11617200. 1792638160. 256300. 064 15750.4 3840900.6 2548600.1 56200.4000.100750.2 44280.156220. 10018900.3 52340.225270. 144220.4 780.7 9441490.3060.50833390. 1960. 3252631900.2 50230.160180. 102 151051200.3 390.4 3830350.2170.28024280. 1390. 17919221500.6 61430.423340. 271271800.9 81500.6280.1120.1984017240. 402901200.1 75210.3 09301500.4 84380.6 950.9 4543500.3100.4450.605303440320. 072 150. 127190. 198240. 285270. 387321200.2 4424311925150.3 800.1560.2430. 1001500. 156201800.547390.350310. 224252102400.7 420.9 724450: A ir volume in c ubic feet per minute.P /s: Negative s tatic pres s ure in inc hes water gauge.NC: Nois e C riteria.C ONDIT IONS* R eturnis full open.* Nois e C riteria v a lues a re ba s ed on(10 db)* T he tes ted s pec imens were of 3ft length22Ps0.1 33S Y MB OL S* Da mperNC0.2 34210CFMPs301806NC1 ’’2310513544/5’’room a ttenua tion0.4750.62235400. 3040. 3982832Notes:.LINEAR SLOT DIFFUSERS23
TECHNO FAB Engineering Head OfficeUnited Arab EmiratesP. O. Box : 326900, UAQ, UAETel: 971 6 7670 726Fax: 971 6 7670 725Email: info@technofab-eng.comWeb: www.technofab-eng.com
Linear Slot Diffusers for supply air applications are usually installed in ceilings or high side wall locations, the design of these units features an The Volume Control Damper (Hit- and - Miss Damper) is designed in a
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4-slot and 8-slot FM-G fabric modules that provide up to 1.6 Tbps capacity per line card slot. 8-slot and 16-slot FM-E2 fabric modules that provide up to 800 Gbps capacity per line card slot. 4-slot, 8-slot, and 16-slot FM-E fabric modules that provide up to 800 Gbps capacity per line card slot.
D-4 Linear & Plenum-Slot Diffusers D model SLAD Straight Line Adjustable Diffusers product description PATTERN CONTROL FLEXIBILITY (2 SLOT SHOWN) 1 WAY LEFT - HORIZONTAL 1 WAY RIGHT - H
Time Slot Receive Frequency Transmit Frequency Talk Group Squaw Rky Mtn 7 Slot 1 446.9375 441.9375 Rocky Mountain Squaw Central7 Slot 2 446.9375 441.9375 Central Lee Hill WW 1 Slot 1 445.05 440.05 DMR MARC WW Lee Hill WW Eng 1 Slot 1 445.05 440.05 DMR MARC WW Eng Lee Hill NA 1 Slot 1 445.05 440.05 DMR MARC NA Lee Hill LCL 1 Slot 2 445.05 440.05 .
Linear Slot Diffusers & Plenums Page 8 Linear Floor Registers Page 11 Pattern Diffusers Page 7 Plenum Slot Diffusers Page 8 Return Grilles Page 12 Return Registers Page 11 Roof Curbs Page 17 Round to Round Adapters Page 14 Sensors Page 4 Slip-Fit Connections - Semco Stock - Limited Stock P
Slot Diffusers Diffuser Placement – The maximum recommended distance between diffusers is three diffuser lengths. For example, if the diffuser length is 4 feet (1.219 m), the maximum separation distance would be 4 ft x 3 12ft (1.219 m x 3 3.658 m). The maximum recommended distance for diffusers from an exterior wall, with
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