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11/06 - 2 Construction subject to change. Version: 08.12.2009 No return possible!

Ceiling Cooling System Alpety Description Knowledge of the direct correlation between human productivity and ambient conditions, for example room temperature and air humidity, leads to an increased use of technology for cooling, humidifying or dehumidifying. According to DIN 1946 Part 2, at high outside temperatures in summer and short appearances of high thermal loads, an increase in the operative room temperature is allowed. Often the cooling load of rooms is not determined by outside but inside thermal loads. If these loads appear for short periods only, the operative room temperature is...

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Ceiling Cooling System Alpety The overall system is checked for tightness on-site. The maximum test pressure is 10 bar. This check is carried out by the pressure-drop method. As with all cooling ceilings, the cold water supply temperature must be selected such that it will not drop below the dew point. A combination with twist or slot diffusers as well as lights is possible. Attention: The Alpety cooling ceiling elements must be designed and installed in such a way that a condensate-free operation is guaranteed. Upon request, the ceiling panels to be activated can be provided. If ceiling...

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Ceiling Cooling System Alpety Model Alpety-SKS-R Alpety-SKS-Q Alpety-SKS-...-A (available at an extra charge) - Rectangular shaped ceiling panel - Square ceiling panels - Aluminium sheet ceiling panels, powdercoated to RAL 9010 (white) Alpety-SKS-...-S - Galvanised sheet steel ceiling panels, powder-coated to RAL 9010 (white) Alpety-SKS-...-...-O - without perforation and without acoustic fleece Alpety-SKS-...-...-P - with standard perforation of Ø 2.5 mm and 16% free cross-section and with black acoustic fleece, thermally glued all over (white fleece on request) Alpety-FKL - Blade cooling...

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Alpety-SKS-R: Rectangular shaped ceiling panel L= from 800 to 2500 mm W= from 200 to 800 mm (in intervals of 100 mm) Other dimensions on request Alpety-SKS-Q: Square ceiling panels Length x Width 600x600 625x625 700x700 800x800 900x900 Other dimensions on request The panel thickness and bevel depend on the selected ceiling system. Output Cooling power to DIN 4715: up to 90 W/m2 The cooling power of the cooling ceiling elements depends on the type of air supply as well as the covered %, i.e., percentage of the activated surface area, relative to the overall surface area of the ceiling....

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Ceiling Cooling System Alpety Cooling ceiling blade types Adjusted to the requirements of the architect or client Alpety-FKL 134 Determination of the cooling capacity to DIN 14 240 Average temperature difference Room temperature Water supply temperature Water return temperature When combined with a ventilation system with turbulent supply air pattern (air change rate of at least 2), the performance data from the performance tables are increased by up to 10 %. When combined with a laminar supply air pattern (air change rate of at least 2), the performance data from the performance tables are...

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Average temperature difference Room temperature Water supply temperature Water return temperature When combined with a ventilation system with turbulent supply air pattern (air change rate of at least 2), the performance data from the performance tables are increased by up to 10 %. When combined with a laminar supply air pattern (air change rate of at least 2), the performance data from the performance tables are increased by up to 5%. Construction subject to change.

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Available sizes for Alpety FKL / HKL Suspended ceiling fixture: Detail X Cooling sails Alpety FKL / HKL Alpety FKL/HKL are joined to give two- to six-blade cooling sails having a maximum length of 2500 mm. Note: The cooling sails are connected to one another with flexible hoses. Make sure that the hoses are connected without kinks. Alpety-FKL Construction subject to change.

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Ceiling Cooling System Alpety Technical Data Control of cooling ceilings The output of cooling ceilings is usually controlled by varying the water flow of the cooling ceiling. A stop valve having a thermal or motorised actuator, which varies the amount of flow as a function of ambient temperature, is suitable for this. Hydraulic connection scheme of the cooling ceiling Supply Dew point control A condensation of the cooling ceiling will take place when the surface temperature of the cooling ceiling falls below the dew point temperature of the room. Single-room dew point control - passive The...

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Ceiling Cooling System Alpety Central temperature control including dew point control per single room - active The supply temperature for the cooling ceiling is controlled centrally as a function of the dew point temperature of the return air or of a reference room. The room cooling is not interrupted. 11/06 - 11 Construction subject to change. Version: 08.12.2009 No return possible!

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Ceiling Cooling System Alpety Control examples Standard solution for single rooms Cooling ceiling Function: Passive dew point control by connecting a dew point sensor type QXA 2000, AQX 2000. Construction subject to change.

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Ceiling Cooling System Alpety Bus-capable single-room control Konnex EIB or LON Cooling / Heating (in sequences), cooling ceiling with radiator heating Selection of units: KONNEX - EIB Function - Passive dew point control by means of dew point sensor QXA 2000 - Communication-capable controller - Comfort, Standby, Energy Cutoff temperature level Construction subject to change.

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Ceiling Cooling System Alpety Further data Questionnaire for planning cooling or heating ceilings Sound absorption requirements: at Project / Place: __________________________________ Type of ventilation system Floor surface area per person ___ Turbulent ventilation via swirl or slot diffusers internal load per m² (persons, lighting, EDP, etc.) ___ Displacement ventilation via floor or displacement ventilation outlets external load per m² (radiation and heat transfer) Room division: ___ Large room ___ Single rooms with fixed partition walls ___ Cooling only ___ Single rooms with adjustable...

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