Damper - circular. Dimensions. Description. Ordering example. comfort vav
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1 Dimensions L D B C H Ød Description is a circular control and shut-off damper, which meets the air tightness requirements of DS class. The damper can be used for pressure or volume flow regulation with external control options (open, closed, min., max.) depending on the form of control/regulation. is available with a spring return motor, so the damper can be used as a smoke damper. The damper can be controlled by an FRU (as a VRU) or a PR regulator, by a CTS system or Regula Combi (with modulating signal) or as a slave for another damper (mechanical slave operation with the same damper position). When ordering, it is important to specify the form of control, and whether the damper motor must be prograable. All dampers are supplied with Belimo motors. Type overview B C D H L -0-RU/SU 0-0-RP/SP 0 - Type ø-ø ø-ø 0 (Standard) 0 (Standard) -RU NM-V NM-V -RP LMA-MF-F NMA-MF-F -SU LMA-SR-F NMA-SR-F -SP LMA-MF-F NMA-MF-F Type ø-ø ø-ø (Spring-return) (Spring-return) -RU LF-V AF-V -RP LF-MFT AF-MFT -SU LF-SR AF-SR -SP LF-MFT AF-MFT Ordering example Product a bbb c d Type Standard 0 Spring return Size Ød Form of control R: Regulator-controlled S: Parallel signal (modulating) Prograing U: Without prograing P: Prograable RU RP SU SP Used only with PR ( and FRU) and is preset to a VAV input signal: ± V, Has a prograable motor, is used together with PR and is preprograed for a VAV input signal: ± V. Has modulating output signal indicating damper position for mechanical control of a slave damper. Has a motor, which is controlled by modulating input signal (-V). Also has a modulating output signal indicating damper position. Has a prograble motor, which can be controlled by optional input signal (Standard modulating). Also has a modulating output signal indicating damper position for mechanical control of a slave damper. We reserve the right to make changes without prior notice
2 Damper - rectangular DJP Dimensions A B 0 Description DJP is a rectangular control and shut-off damper, which meets the requirements of DS class. DJP has opposing aerodynamic damper blades that are rotated via a lever device. The damper is supplied with an LS connection system for rectangular ducts. The damper can be used for pressure or volume flow regulation with external control options (open, closed, min., max.) depending on the form of control/ regulation. DJP is available with a spring return motor, so the damper can be used as a smoke damper. The damper can be controlled by an FRA (as a VRA) or a PR regulator, directly by a temperature sensor or CTS system ( V modulating) or as a slave for another damper (mechanical slave operation with the same damper position). When ordering, it is important to specify the form of control, and whether the damper motor must be prograable. All DJP dampers have Belimo motors installed. Ordering example Product DJP a bbb c d Type Standard 0 Spring return Size A (Width) B (Height) Form of control R: Regulator-controlled S: Slave or sensor-controlled Prograing U: Without prograing P: Prograable overview RU RP SU SP Type 0 DJP-RU NM-V AF-V DJP-RP NMA-MF AF-MFT DJP-SU NMA-SR AF-SR DJP-SP NMA-MF AF-MFT Used only with PR (and FRU) and is preset to a VAV input signal: ± V. Has a prograable motor, is used together with PR and is preprograed for a VAV input signal: ± V. Has a modulating output signal indicating damper position for mechanical control of a slave damper. Has a motor, which is controlled by a modulating input signal (- V). Also has a modulating output signal indicating damper position. Has a prograable motor, which can be controlled by an optional input signal (standard modulating). Also has a modulating output signal indicating damper position for mechanical control of a slave damper. We reserve the right to make changes without prior notice
3 Damper - rectangular DJP Frequency-related sound effect level DJP-m [L w] [db] Pressure difference [Pa] [db(a)] Centre frequency [Hz] [L Duct velocity w (A)] m/s 00 m/s 00 m/s 00 m/s 00 Correction of sound effect level for other damper sizes Area [m²] 0, 0, 0, 0, 0,,0,,0 db correction We reserve the right to make changes without prior notice
4 Pressure drop diagram and sound data for dimensioning. The solid curves indicate the total pressure drop over the damper as a function of the volume flow q and the blade angle. The broken curves indicate the A-weighted sound effect level Lw (A), in db to the duct. Example: Dimension: Ø Volume flow: l/s Pressure drop: Pa The following can be obtained from the diagram: Blade angle 0 Sound effect level db(a) Measuring method for sound: Sound data has been measured by the Swedish National Testing and Research Institute (SP) with reference to ISO and EN/ISO. Blade angle: 0 = open damper. 0 = closed damper. Ø Ø Ø Ø We reserve the right to make changes without prior notice
5 Ø 0 0 Ø Ø Ø Ø 0 0 Ø We reserve the right to make changes without prior notice
6 Sound data The following pages give sound effect levels for ducts (flow noise) with reference to ISO as a function of volume flow and pressure difference. The necessary minimum prepressure difference is 0 Pa for all sizes, equivalent to the pressure loss over VRU at nominal volume flow and with a fully open damper. Dimension Ød 00 0 Pressure drop [Pa] [m/s] [m/s] [m/s] Mean frequency [Hz] Mean frequency [Hz] Mean frequency [Hz] 0 k k k k 0 k k k k 0 k k k k Air volume / 0 Air volume / Air volume / 0 0 Air volume 0 / Air volume / Air volume Air volume / Air volume 0 / Air volume / Air volume / Air volume / 0 Air volume 0 / Air volume [l/s / 0 ] Air volume 0 / Air volume / Air volume / 00 Air volume 0 / 0 Air volume / Air volume 00 / 0 Air volume 0 / Air volume / 0 0 Air volume 0 / Air volume / 0 Air volume 0 / Air volume 0 Air volume 0 / Air volume 00 / We reserve the right to make changes without prior notice
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