lindab | constant -/variable flow dampers Constant-/variable flow damper DAVU Dimensions 1 B 2 Ød 1 130 3 4 l 5 Description Constant flow damper with electric motor for continuous setting of one flow Ød 1 l B m Tightness class 6 nom mm mm kg across closed blade 80 246 122 1,95 0 7 DAVU is a constant flow damper, which facilitates balancing 100 246 122 2,00 0 of ventilation systems and gives correct flow from the start. 125 246 135 2,25 0 8 The unit compensates for e.g. connection and disconnection 160 246 170 2,45 0 of system parts, clogging of filters and ducts, thermal lift 200 246 210 2,86 0 forces, wind effects, window opening etc. 250 284 260 3,95 0 315 334 325 5,35 0 The motor shall be completed with control signal transmitter e.g. an external potentiometer or a proportionally regulating thermostat. A special mounting, measuring, balancing and maintenance instruction exists for this product. Ø 80–315 fullfills pressure class A in closed position. Fulfils tightness class C. Order code Product Type Dimension Ød 1 Voltage Motor type 9 DAVU 125 24 LMSX 10 11 12 1 3 Technical data for the motor Power supply . Power consumption . For wire sizing . Connection . Operating angle . Torque at nominal voltage . Direction of rotation . Position at Y=0 V. Position indication. Running time for 90° . Sound power level . Protection class . Protection type. Ambient temperature range. Ambient humidity . LM 24 A-SX AC 19,2–28,8 V, 50/60 Hz DC 21,6–28,8 V 2 W 4 VA Cable 1 m, 4×0,75 mm 2 Max. 95°, adjustable 0–100 % Min. 5 Nm Switch selectable 0/1 Switch selectable 0 or 1 Mechanical 150 s 35 dB (A) III Safety extra-low voltage IP 54 -30 to +50 °C 95 % RH 14 – + 15 Y DC 0–10 V U DC 2–10 V 16 1 2 3 5 17 18 We reserve the right to make changes without prior notice 595
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