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QSH · ISH

QSH · ISH
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Air Displacement Vent Units Type QSH · ISH TROX GmbH Heinrich-Trox-Platz D-47504 Neukirchen-Vluyn

Contents · Description Description Construction · Dimensions Materials Installation Nomenclature Technical Data Order Details Aisle area For air-polluting work processes For clean work processes Description Air displacement vent units types QSH and ISH are mainly used in industrial areas with heights of 3.5 to 10 m, installation can be freely suspended or fixed to columns or walls. In rooms or halls with changing thermal loads the supply air temperature can provide either heating or cooling functions and the air itself can be discharged horizontally or vertically. Air polluting work...

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Description When cooling (discharge of chilled air) the supply air has to be discharged horizontally in order to comply with the comfort criteria. When heating (discharge of warm air) the supply air has to be discharged vertically downwards, otherwise it would not reach the occupied zone due to thermal buoyancy effects. The air control disc can be adjusted either manually using a chain pull or Bowden cable, electrically with an actuator or by a self powered thermal actuator. Type ISH – cooling mode Type ISH – heating mode horizontal discharge vertical discharge Type QSH – cooling mode Type...

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Construction · Dimensions · Materials Construction Electrical wiring is not required for types QSH-T / ISH-T. Air displacement vent units types QSH and ISH are available in four sizes. They comprise a perforated cylinder with a formed circular spigot, an internal air control disc and a solid base plate. Materials Galvanised perforated sheet steel cylinder, galvanised sheet steel spigot, air control disc and base plate. Galvanised surface finish is standard. The adjustment of the air discharge direction can optionally either be by means of manual adjustment with a chain (QSH/ISH) or Bowden...

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The units are installed directly into the system ducting and fixed by screws or rivets provided by others. The entire system must be securely fixed and suspended by appropriate means. The units can be fitted to walls or columns using the wall brackets which can be supplied on request (W00). The wall mounting frame is fixed by using bolts, after which the air displacement unit is located on the mounting frame from above and fitted to it using two screws. In the case of the chain pull, the chain fixing bracket (K00) is plug fixed and the chain length altered to achieve the required position...

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Nomenclature · Technical Data Nomenclature Below the unit air velocities in the occupied zone may deviate from the values required by DIN 1946/2 for comfort. Therefore, for example, installation above aisles is recommended. Volume flow per unit Volume flow per unit Maximum horizontal throw Supply air temperature differential Max. vertical penetration depth of jet in heating mode ƒL in m/s: Time average air velocity of 0.3 m/s ͬ pt in Pa: Total pressure drop LWA in dB(A): A-weighted sound power level Type ISH Air volocities in the occupied zone correspond to the values required by DIN 1946/2...

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Maximum temperature differential Heating mode (vertical): Atmax = +12K Cooling mode (horizontal): A tmax = - 8K Recommended installation height above floor 3.5 m. Sound power level and pressure drop, type QSH Correction for vertical discharge (heating mode), diagram 1 Sound power level and pressure drop, type ISH Correction for vertical discharge (heating mode), diagram 2 Data given: Supply air temperature differential Atz = + 12 K Acceptable air velocity vL = approx. 0.3 m/s Diagram 2: Sound power level and pressure drop in cooling mode (horizontal) LWA = 48 dB(A) in heating mode...

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Order Details These codes do not need to be completed for standard products QSH - E2 With manual adjustment TQSH E ZISH E (chain pull) U Electrical actuator 230 V, 50 Hz Thermal actuator Bowden cable State colour 0 Standard finish galvanised P0 Powder-coated RAL 9010 (GE 50 %)1) P1 Powder-coated RAL ... (GE 70 %)1) With wall frame With chain fixing2) With wall frame and chain fixing2) GE = Gloss level ! 2) for manual adjustment only 1) Design changes reserved · All rights reserved © TROX GmbH (8/2008) Specification Text Air displacement vent unit in circular construction suitable for...

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