Swirl Diffusers-we.. - Air Diffusion

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Model OD-11Ceiling Swirl DiffusersPerformance Data ContinuedBlade opening angle during heating and cooling operationOD-11V size 630COOLING Blade angle35° 40° 45° 50°30°∆T z0 °K-2 °K-5 °K-10 °K-15 °KExample 3 (cooling)Q = 2700m 3 /hV H1 = 0.2m/s∆T z = -10 °KH1 = 9m→ H1=9-1.8 = 7.2mRecommended size: 630V ef = Q/A ef x 3600 = 2700/0.32 x 3600V ef = 2.3m/sV H1 /V ef = 0.2/2.3 = 0.08Blade angle: 43°∆T z+15 °K+30 °K1 2 3 4 5 10 0.03 0.04 0.050.10 0.15H1 (m)V H1 /V efHEATING+10 °K +5 °K45 °50 °60 °70 °90 °10 5 4 3 2 1 2 3 4 5 10v ef (m/s)H1 (m)OD-11V size 800COOLING Blade angle35° 40° 45° 50°30°∆T z0 °K-2 °K-5 °K-10 °K-15 °K∆Tz+10°K+15°K1 2 3 4 5 10 0.03 0.04 0.050.10 0.15H1 (m)V H1 /V efHEATING+5 °K45°50°60°70°90°10 5 4 3 2 1 0.6 1 2 3 4 5 10V ef (m/s)H1 (m)44
Ceiling Swirl DiffusersModel OD-11Performance Data ContinuedPressure drops and sound power level (for version with dispersing plate)OD-11V Size 125 - 800PRESSURE DROPS AND SOUND POWER LEVELV ef (m/s)10754321.5125 160 200 250 315 400 50063080023252045403530L WA (dB(A))505590° 60° 50° 45°40°35°30°1100 200300 400 500 700 1000 1500 2000 3000 5000 7000 10000 1Q (m 3 /h)Example 2 (cooling)Q = 350m 3 /hL WA = 48 dB(A)∆p = 77PaBlade angle: 32°2 3 4 5 7 10 20 50 100 100∆p t (Pa)Example 3 (cooling)Q = 2700m 3 /hL WA = 37 dB(A)∆p = 16PaBlade angle: 43°3412T2T1T1 - air temperature in the duct (°C)T2 - air temperature in the room (°C)T1 < T2 cooling - the blade angle is towards 0°T1 > T2 heating - the blade angle is towards 90°1OD-11V with the ADT-1 thermostat with analogue outputDescriptionThe ADT-1 differential thermostat with continuous analogueoutput is a controller that based on the duct air temperatureand room temperature signals automatically adjusts the angleof OD-11V blades as required. One ADT-1 can operate up to10 OD-11 units.OperationThe controller compares the selected temperature curve, whichis set according to the OD-11V position, desired mode ofoperation, etc, with data received from temperature sensorslocated in the air supply duct and in the room. taking intoaccount the desired temperature difference, the controllergenerates a continuous analogue 0-10V DC output signal,which is then transmitted to the OD-11V electric motor drive.comparing the temperature, the controller automaticallyrecognises the heating or cooling mode and sets the OD-11Vaccordingly. In the case the duct air temperature is higher thanthe room temperature, the controller switches the DC-V11 tothe heating mode, ie. to the vertical supply of warm air into theroom. In the case the duct air temperature is lower than theroom temperature, the controller automatically infers that thesystem in the room cooling mode and accordingly generates asignal to set the OD-11V to the cooling mode.AdvantageApplying ADT-1, the need for manual switching of a largenumber of OD-11V units to the proper operational mode isavoided, since the controller switches the units automatically. Inthis way, the efficiency of room air conditioning is enhanced aswell.ADT-1 differential thermostat1. controller2. room temperature sensor3. duct temperature sensor4. Belimo LM24-SRFor the size 630, appropriate motor type is NMFor the size 800, appropriate motor type is AM45
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