LTG Air-Water Systems

Transcription

1 Technical Brochure LTG Air-Water Systems Active chilled beams HDF Ceiling installation

2 Active chilled beams HDF, ceiling installation LTG Comfort Air Technology Air-Water-Systems Content Page Product overview 3 Series HDF Series HDF Regulation system 25 Air Diffusers Air Distribution Notes Dimensions stated in this brochure are in mm. Dimensions stated in this brochure are subject to General Tolerances according to DIN ISO 2768-vL. For the outlet grille special tolerances stated in the drawing apply. Straightness and twist tolerances for extruded aluminium profiles according to DIN EN The surface finish is designed to meet the requirements for applications in buildings - room climate according to DIN 1946 part 2. Other requirements on request. The actual specifications are are available as a word document at your local distributor or at E Grenzstraße Stuttgart Germany HDF-eng-TP (06/13) Former editions are invalid Subject to technical modifications page 2 of 25

3 Active chilled beams HDF, ceiling installation The Induction Principle Air flowing through a nozzle forms a free jet. It induces the surrounding air layer along at its edges and thus enlarges the flowing air volume. This induction takes place within the induction device. A special construction entrains room air (secondary air) through a heat exchanger, where it is cooled or heated. Together with the fresh air (primary air) the supply air then returns to the room for a comfortable climate. LTG induction units of the latest generation are energy-efficient and can be operated and demandcontrolled with LTG SmartFlow technology. Two-pipe system The unit has only one heat exchanger through which chilled water flows for cooling and hot water for heating. Therefore, it is only possible to either heat or cool within a single water circuit. Four-pipe system The unit has two separate water systems, one for heating, the other one for cooling. Therefore, chilled and hot water always remain separate. The four-pipe system fulfills all requirements on varying loads and small control zones. Induction Principle Product overview View of units Series HDF-300 Series HDF-600 Application Water system Options Installation Modularceiling systemforventilationusingprocessedoutsideairandindividualtemperaturecontrol of rooms based on the induction principle, i.e. without the use of a fan. Dry cooling without dehumidification and condensate drainage. 2-pipe system, 4-pipe system Low installation height Fresh air unit Blind diffuser In T-bar, grid and plasterboard ceilings Flanged, recessed Fresh air unit Blind diffuser Supply air pattern 2-way diffusion 2-way diffusion, 4-way diffusion E Grenzstraße Stuttgart Germany HDF-eng-TP (06/13) Former editions are invalid Subject to technical modifications page 3 of 25

4 Active chilled beams series HDF-300, ceiling installation View of unit Active chilled beam series HDF-600 Application The active chilled beam type HDF has been designed as a modular ceiling unit to condition rooms with regarding humidity and temperature based on the induction principle, i.e. without the use of a fan. The active chilled beam is designed for dry cooling without dehumidification and condensate drainage. Installation, positioning Its low construction height allows installation in false ceilings with limited space. The reduced width and the selectable length allow an easy integration in 300 or 312 mm grid ceilings. Unit lengths from 1200 mm to band installation (within a 300 mm grid system) may be realized. It is designed to provide complete separation from the ceiling cavity and to suppress sound transmission from adjacent rooms (telephony sound insulation). Functional Principle Room air humidity is controlled through the centrally dehumidified supply air avoiding involuntary dehumidification in the active chilled beam. The 2-pipe systemmay be usedfor either cooling only or change-over operation with cooling/ reheating. The 4-pipe system with independent water circuits automatically switches from cooling to heating and vice versa. During operation, 100% of the primary air is pretreated fresh air from a central fresh air unit. It assures the use-dependent basic ventilation using outside air, e.g. in conformity with DIN EN or DIN EN recommendations. Through uniformly arranged nozzles over the entire unit length, the primary air is led in an injector-type diffuser which induces secondary air. Depending on the room load, this secondary air is either heated or cooled in a 2-pipe or 4-pipe heat exchanger. The supply air, a mixture of primary and secondary air, is distributed into the room in two directions via ceiling jets. Advantages Low primary air pressures between 50 and 100 Pa - Low-noise operation; sound pressure may be selected to remain below 35 db(a) - High secondary (water-side) capacity of up to 350 W/m - Easy air flow balance of the units within a single duct run - Energy-efficient operation Flexible nozzle design - Selection for fixed primary pressure possible - Primary air flow may be selected according to room use between 20 and 100 m 3 /h/m - Non combustible metal nozzles Low installation height mm standard mm type HDF-300/N Efficient heat exchanger - High heating capacity even with low warm water supply temperatures (e.g. 30 _C) - High cooling capacity with high chilled water supply temperatures (e.g. 16 _C) - Low water flow rates, designed for a temperature difference of 3 K Flexible connection of media - Primary air connection with NW 100 on the long side (standard) - Water connections on unit top surface for convenient pipe connections from left or right Designed for easy maintenance design - Easily removable secondary air inlet grille - No protective air filter required for the heat exchanger Perfect integration in false ceilings - Width 295 mm, recessed installation - Width 319 mm, flanged installation Pleasing design - Air diffuser construction of aluminium profiles - Visible surfaces powder coated e.g. similar to RAL Secondary air inlet grille out of expanded metal panel (free area > 63%) - Secondary air grille in the form of a perforated sheet metal optional (square perforation) Simplified commissioning - Measuring point to determine the air flow rate (standard) - Pressure balancing with a perforated sheet metal balancing damper E Grenzstraße Stuttgart Germany HDF-eng-TP (06/13) Former editions are invalid Subject to technical modifications page 4 of 25

5 Active chilled beams series HDF-300, ceiling installation Design - 4-pipe system for cooling and heating - 2-pipe system for cooling or heating - Flanged installation or recessed installation - Balancing damper KLI Options - HDF-N - low installation height - HDF-L - fresh air unit - HDF-B - blind diffuser Materials and Finish Primary air duct of galvanized sheet steel, nozzle duct and induction nozzles of black coated sheet steel, 1 mm thick, longitudinal profiles of aluminium, either anodized or powder coated similar to RAL. Secondary airinlet grille of galvanized sheet metal, powder coated like the air diffuser frame. Accessories - Return air connection NW 100, integrated in the diffuser frame - Blind unit extension, to be used to match specific lengths required on site - Sheet metal console to mount valves on unit top-side or end side - Thermal control valves - Flexible water connections with 12 mm quick coupling Dimensions See drawings on the next pages. Air diffuser frame, flanged installation 295 L ,5 1, ,5 Air diffuser frame, recessed installation L , ,5 L 1 Size L 1 recessed [mm] L 2 flanged [mm] L 3 [mm] L 4 [mm] L5 [mm] Weight [kg] E Grenzstraße Stuttgart Germany HDF-eng-TP (06/13) Former editions are invalid Subject to technical modifications page 5 of 25

6 Active chilled beams series HDF-i300, ceiling installation Dimensions Model with return air connection DN 100 Front view Top view Front view L Ø 100 Suspension points with insulating spacers for M8 threaded rods 4 x Ø L 5 L 2 Standard model Top view L Suspension points with insulating spacers for M8 threaded rods 4 x Ø L 4 L 2 Lateral view 4-pipe-unit shown: air diffuser frame flanged installation Lateral view 2-pipe-unit shown: air diffuser frame recessed installation Primary air Connection for quick coupling Primary air Connection for quick coupling xØ12 2xØ12 80 Socket DN 100 Measuring device for flow rate determination Socket DN 100 Air outlet Air outlet Air outlet Air outlet Air inlet Air inlet E Grenzstraße Stuttgart Germany HDF-eng-TP (06/13) Former editions are invalid Subject to technical modifications page 6 of 25

7 Active chilled beams series HDF-300, ceiling installation Dimensions type HDF-300/N - low installation height Front view 67 Lateral view Ø L 3 Suspension points with insulating spacers for M8 threaded rods 4 x Ø Measuring device for flow rate determination 8 Top view DN L 1 Dimensions type HDF-300/L - fresh air unit Lateral view Front view L Suspension points with insulating spacers for M8 threaded rods 4 x Ø Measuring device for flow rate determination Dimensions type HDF-300/B - blind diffuser Top view DN 100 L 1 Lateral view Front view L 1 L 3 Suspension points with insulating spacers for M8 threaded rods 295 Top view E Grenzstraße Stuttgart Germany HDF-eng-TP (06/13) Former editions are invalid Subject to technical modifications page 7 of 25

8 Active chilled beams series HDF-300, ceiling installation Technical data size 1200, 4-pipe system - cooling and heating p Q P / t / t w ok / p w Q h / t / Technical data size 1500, 4-pipe system - cooling and heating p Q P / t / t w ok / p w Q h / t / Technical data size 1800, 4-pipe system - cooling and heating p Q P / t / t w ok / p w Q h / t / Q h 2) Q h 2) Q h 2) w oh / p w 80 / 2.1 w oh / p w 100 / 2.5 w oh / p w 120 / 2.9 E Grenzstraße Stuttgart Germany HDF-eng-TP (06/13) Former editions are invalid Subject to technical modifications page 8 of 25

9 Active chilled beams series HDF-300, ceiling installation Technical data size 2100, 4-pipe-system - cooling and heating p Q P / t / t w ok / p w Q h / t / Q h 2) The chart shows selection examples. Selection software is available for other flow rates, primary pressures, temperatures and water flow rates. Data are based on a unit including a secondary air inlet grille 63 % free area. Correction for other water flow rates see page 12 et sqq. Water supply temperature: 16 _C Air inlet temperature or return air temperature: 26 _C 2) Water supply temperature: 40 _C Air inlet temperature or return air temperature: 22 _C w oh / p w 130 / 3.0 Legend - primary air flow rate (± 3 %) p - static pressure at the primary air connection - sound pressure level at 18 m 2 Sabine (± 3 db) - sound power level (± 3 db) Q P - air-side cooling capacity (primary air ± 3 %) - water-side cooling capacity (secondary ± 6 %) t - temperature difference between air inlet and water supply w ok - standard water flow rate (cooling) p w - water-side pressure loss Q h - water-side heating capacity (secondary ± 6 %) w oh - standard water flow rate (heating) E Grenzstraße Stuttgart Germany HDF-eng-TP (06/13) Former editions are invalid Subject to technical modifications page 9 of 25

10 Active chilled beams series HDF-300, ceiling installation Technical data size 1200, 2-pipe system - cooling or heating p Q P / t / t w ok / p w Q h / t / Technical data size 1500, 2-pipe system - cooling or heating p Q P / t / t w ok / p w Q h / t Q h 2) Q h 2) / Technical data size 1800, 2-pipe system - cooling or heating p Q P / t / t w ok / p w Q h / t Q h 2) / w oh / p w 80 / 2.1 w oh / p w 100 / 2.5 w oh / p w 120 / 2.9 E Grenzstraße Stuttgart Germany HDF-eng-TP (06/13) Former editions are invalid Subject to technical modifications page 10 of 25

11 Active chilled beams series HDF-300, ceiling installation Technical data size 2100, 2-pipe system - cooling or heating p Q P / t / t w ok / p w Q h / t / Q h 2) The chart shows selection examples. Selection software is available for other flow rates, primary pressures, temperatures and water flow rates. Data are based on the unit including a secondary air inlet grille 63 % free area. Correction for other flow rates see pages 12 et sqq. Water supply temperature: 16 _C Air inlet temperature or return air temperature: 26 _C 2) Water supply temperature: 40 _C Air inlet temperature or return air temperature: 22 _C w oh / p w 130 / 3.0 Legend - primary air flow rate (± 3 %) p - static pressure at the primary air connection - sound pressure level at 18 m 2 Sabine (± 3 db) - sound power level(± 3 db) Q P - air-side cooling capacity (primary air ± 3%) - water-side cooling capacity (secondary ± 6%) t - temperature difference between air inlet and water supply w ok - standard water flow rate (cooling) p w - water-side pressure loss Q h - water-side heating capacity (secondary ± 6%) w oh - standard water flow rate (heating) E Grenzstraße Stuttgart Germany HDF-eng-TP (06/13) Former editions are invalid Subject to technical modifications page 11 of 25

12 Active chilled beams series HDF-300, ceiling installation Cooling capacity with different water flow rates Cooling capacity in % of the nominal capacity pipe 2-pipe Water flow rate in % of the standard water flow rate Heating capacity with different water flow rates Heating capacity in % of the nominal capacity Q h pipe 2-pipe Water flow rate in % of the standard water flow rate E Grenzstraße Stuttgart Germany HDF-eng-TP (06/13) Former editions are invalid Subject to technical modifications page 12 of 25

13 Active chilled beams series HDF-300, ceiling-installation Water-side pressure loss with different water flow rates, 4-pipe system - cooling 10 Water-side pressure loss [kpa] 1 Size 1200 Size 1500 Size 1800 Size Water flow rate w [kg/h] Water-side pressure loss with different water flow rates, 4-pipe system - heating 10 Water-side pressure loss [kpa] 1 Size 1200 Size 1500 Size 1800 Size Water flow rate w [kg/h] E Grenzstraße Stuttgart Germany HDF-eng-TP (06/13) Former editions are invalid Subject to technical modifications page 13 of 25

14 Active chilled beams series HDF-300, ceiling installation Water-side pressure loss with different water flow rates, 2-pipe system - cooling or heating Water-side pressure loss [kpa] 10 1 Size 1200 Size 1500 Size 1800 Size Water flow rate w [kg/h] E Grenzstraße Stuttgart Germany HDF-eng-TP (06/13) Former editions are invalid Subject to technical modifications page 14 of 25

15 Active chilled beams series HDF-300, ceiling installation Nomenclature HDF-300 / / 2 / 1200 / 45 / 80 / A / S / 600 / RAL... ( (2) (3) (4) (5) (6) (7) (8) (9) (10) ( Series HDF-300 = HDF-300 (2) Type = Standard installation height N = Low installation height L = Fresh air unit B = Blind diffuser (3) Heat exchanger 2 = 2-pipe system 4 = 4-pipe system (4) Size 1200 = = = = = 2400 (5) Primary air flow rate 45 = E.g. 45 m³/h (6) Primary air pressure 80 = E.g. 80 Pa (7) Return air spigot A = With return air spigot O = Without return air spigot (8) Secondary air grille S = Expanded metal L = Perforated sheet steel (9) Ceiling grid (diffuser) 300 = 300 (10) Surface of diffuser RAL... = Coated similar to RAL, indicate RAL-colour E Grenzstraße Stuttgart Germany HDF-eng-TP (06/13) Former editions are invalid Subject to technical modifications page 15 of 25

16 Active chilled beams series HDF-600, ceiling installation View of unit Active chilled beam typ HDF-600/4A, 4-way diffusion Application The active chilled beam HDF is a ceiling-mounted unit for ventilation and individual temperature control based on the induction principle, i.e. without the use of a fan, using processed outside air. The active chilled beamis designed for dry cooling without dehumidification and condensate drainage. Installation, positioning The low construction height (200 mm) allows installation in false ceilings with limited space. The active chilled beam is suitable for installation in grid ceilings measuring 600 x 600 mm, 600 x 1200 mm, 625 x 625 mm or 625 x 1250 mm and may be positioned in or adjacent to T-bar profiles. With grid and plasterboard ceilings, installation may be recessed or flanged. Functional Principle During operation, the primary air is 100% pretreated outside air from a central central AHU. It assures the use-dependent basic ventilation rate using outside air, e.g. in conformity with DIN EN or DIN EN recommendations. Through uniformly arranged nozzles over the entire unit length, the primary air is led in an injector-type diffuser which induces secondary air. Depending on the room load, this secondary air is either heated or cooled in a 2-pipe or 4-pipe heat exchanger. The supply air, a mixture of primary and secondary air, is uniformly diffused to four sides into the room via preset, divergent ceiling jets covering all four room directions. Room air humidity is controlled through the centrally dehumidified primary air avoiding involuntary dehumidification inside the active chilled beam. The 2-pipe system may be used for either cooling only or change-over operation with cooling/reheating. The 4-pipe system with independent water circuits automatically switches from cooling to heating and vice versa. The design provides complete separation from the ceiling cavity and suppresses sound transmission from adjacent rooms (telephony sound insulation). Advantages Low primary air pressures between 50 and 150 Pa - Low-noise operation; sound pressure may be selected to remain below 35 db(a) - Very low SFP value for secondary air transport (< 0.04 kw/(m³/s)) possible - High secondary (water-side) output with low primary pressure - Excellent air flow balance of the units within a single duct run Flexible nozzle design - Six calibrated, well-matched nozzle combinations - Non combustible metal nozzles - Exchangeable nozzle strip, optional Low installation height (200 mm) - Installation possible in low height suspended ceilings - Facilitates the crossing of utility lines Efficient injector and heat exchanger - High specific secondary output even with low primary air flow rate (in certain areas > 1W/K/(m³/h)) - High heating capacity even with low warm water supply temperatures (e.g. 30 _C) - Lower overtemperature in the heating mode, thus better ventilating efficiency - High cooling capacity with high chilled water supply temperatures (e.g. 16 _C) - Low water flow rates designed for a temperature difference of 3 K Flexible connection of services - Primary air connection with NW 125 on the longitudinal side (standard) - Air connection left or right, as required - Eccentric air connection, if desired, not conflicting with ceiling suspension parts - Water connections outside the unit on top in order to connect from the left or right side Designed for easy maintenance - Easy removal of secondary air grille, secured by metal wires - Easy access for cleaning of heat exchanger and nozzles - No protective air filter required for the heat exchanger. Virtually draught-free indoor air flow - Optimized air distribution with steady, preset divergent, inductive ceiling jet Attractive appearance - Visible surfaces powder coated e.g. sim. to RAL Secondary air grille in the form of a perforated sheet grille (free area > 63%) Easy commissioning - Measuring point to determine the air flow rate (standard) E Grenzstraße Stuttgart Germany HDF-eng-TP (06/13) Former editions are invalid Subject to technical modifications page 16 of 25

17 Active chilled beams type HDF-600/2A/2 and -600/2A/4, ceiling installation Design - 4-pipe-system for cooling and heating - 2-pipe-system for cooling or heating - Grid sizes 600 mm and 625 mm - Balancing damper KLI Materials and Finish Primary air duct of galvanized sheet steel, nozzle duct and induction nozzles of black coated sheet steel, 1 mm thick; secondary air grille of galvanized sheet steel, powder coated similar to RAL. Accessories - Thermal control valves - Flexible water connections with 12 mm quick coupling Installation in different ceiling systems 593 / / 623 / 1198 / / 1170 Dimensions, 2-way diffusion, 4-pipe system Isometric views Front view Lateral view, left side DN Shownwithsocketontheleft Top view Beispiel Bandmontage L Ø12 Size L A* sockets at high air volumes * only valig with 1 socket A* 2xL E Grenzstraße Stuttgart Germany HDF-eng-TP (06/13) Former editions are invalid Subject to technical modifications page 17 of 25

18 Active chilled beam type HDF-600/2A/2, ceiling installation Technical data size 600 x 1200, 2-way diffusion, 2-pipe system p Q P / t / t w ok / p w 170 / 3 Technical data size 600 x 1800, 2-way diffusion, 2-pipe system p Q P / t / t w ok / p w 170 / 4.5 Technical data size 600 x 2400, 2-way diffusion, 2-pipe system p Q P / t / t w ok / p w 170 / 6 The chart shows selection examples. Selection software is available for other flow rates, primary pressures, temperatures and water flow rates. Measuring parameters see page 21. Legend see page 21. E Grenzstraße Stuttgart Germany HDF-eng-TP (06/13) Former editions are invalid Subject to technical modifications page 18 of 25

19 Active chilled beam type HDF-600/2A/4, ceiling installation Technical data size 600 x 1200, 2-way diffusion, 4-pipe system, line assembly p Q P / t / t w ok / p w Q h / t / Q h 2) Technical data size 600 x 1800, 2-way diffusion, 4-pipe system, line assembly p Q P / t / t w ok / p w Q h / t Q h 2) / Technical data size 600 x 2400, 2-way diffusion, 4-pipe system, line assembly p Q P / t / t w ok / p w Q h / t Q h 2) / w oh / p w 110 / 7 w oh / p w 110 / 10 w oh / p w 110 / 13 The chart shows selection examples. Selection software is available for other flow rates, primary pressures, temperatures and water flow rates. Measuring parameters see page 21. Legend see page 21. E Grenzstraße Stuttgart Germany HDF-eng-TP (06/13) Former editions are invalid Subject to technical modifications page 19 of 25

20 Active chilled beam type HDF-600/4A/2 and -600/4A/4, ceiling installation Dimensions, 4-way diffusion, 2-pipe system and 4-pipe system View from below Lateral view, left side, 2-pipe system 319 Ø ±1 74 Ø ±1 Lateral view, left side, 4-pipe system ca. 60 Front view A 1178 ± Ø12 Ø ± Top view 1148 ± Detail A 33 Detail B 11 B Ø12 E Grenzstraße Stuttgart Germany HDF-eng-TP (06/13) Former editions are invalid Subject to technical modifications page 20 of 25

21 Active chilled beam type HDF-600/4A/2 and -600/4A/4, ceiling installation Technical data size 600 x 1200, 4-way diffusion, 2-pipe-system p Q P / t / t w ok / p w [kg/h] / [kpa] Q h / t Q h 2) / Technical data size 600 x 1200, 4-way diffusion, 4-pipe-system p Q P / t / t w ok / p w Q h / t / The chart shows selection examples. Selection software is available for other flow rates, primary pressures, temperatures and water flow rates. Data are based on the unit including a secondary air inlet grille 63 % free area. Correction for other flow rates see page 22. Water supply temperature: 16 _C Air inlet temperature or return air temperature: 26 _C Primary air temperature: 16 C 2) Water supply temperature: 40 _C Air inlet temperature or return air temperature: 22 _C Primary air temperature: 22 C Q h 2) w oh / p w 110 / 3 w oh / p w 110 / 1 Legend - primary air flow rate (± 3 %) p - static pressure at the primary air connection - sound pressure level at 18 m 2 Sabine (± 3 db) - sound power level (± 3 db) Q P - air-side cooling capacity (primary air ± 3 %) - water-side cooling capacity (secondary ± 6 %) t - temperature difference between air inlet and water supply w ok - standard water flow rate (cooling) p w - water-side pressure loss Q h - water-side heating capacity (secondary ± 6%) w oh - standard water flow rate (heating) E Grenzstraße Stuttgart Germany HDF-eng-TP (06/13) Former editions are invalid Subject to technical modifications page 21 of 25

22 Active chilled beams type HDF-600/4A/2 and -600/4A/4, ceiling installation Cooling/heating capacity with different water flow rates for 2-pipe heat exchanger Cooling/heating cap. in % of nominal cap. Water flow rate [kg/h] Capacity with different water flow rates for 4-pipe heat exchanger Cooling capacity Heating capacity Cooling capacity in % of nominal cap Water flow rate [kg/h] Heating capacity in % of nominal cap Water flow rate [kg/h] Water-side pressure loss for 2-pipe heat exchanger / 4-pipe heat exchanger Water-side pressure loss [kpa] Water-side pressure loss [kpa] 16 Cooling Heating Water flow rate [kg/h] Water flow rate [kg/h] E Grenzstraße Stuttgart Germany HDF-eng-TP (06/13) Former editions are invalid Subject to technical modifications page 22 of 25

23 Active chilled beams series HDF-600, ceiling installation Selection Induction systems are economical if operated locally using the primary air flow based on DIN EN while covering the cooling loads in the room. An occupancy rate typical for offices of 10 m² floor space/person results in a calculated specific primary air flow rate of 5m³/h/m² for a low-emission building. A non-low-emission building requires an outside air flow rate of 7.5 m³/h/m². The cooling loads of offices provided with good solar protection are usually about 40 to 60 W/m². The speciality of the HDF 600 active chilled beam is the supply air diffusion in all four directions. It requires a minimum distance between two units or between unit and wall, respectively, in order to avoid excessive downward jet deflection. 600 x 600 ceiling grid, 4x3gridlight With 8.6 m²/unit and 7.5 m³/h/m²: 65 m³/h/unitt 735 W 85 W/m² Air flow: Supply air is diffused in all four directions Location in the ceiling grid Positioning of the units in the ceiling grid should harmonize with the position of the overhead lights. Avoid being too close to protruding overhead lights. The following examples provide suggestions for a 600 mm grid ceiling with square, mirrored grid lights installed flush. Examples apply to - 10 m²/person - 26 C room temperature - 16 C water supply temperature - 16 C primary air temperature 600 x 600 ceiling grid, 4x2gridlight With 17.3 m 2 /unit and 5 m³/h/m²: 87 m³/h/unit 845 W 49 W/m² With 17,3 m 2 /unit and 7.5 m³/h/m²: 130 m³/h/unit 1120 W 65 W/m² 600 x 600 ceiling grid, 3x3gridlight With 13 m²/unit and 5 m³/h/m²: 65 m³/h/unit 735 W 56 W/m² With 13 m²/unit and 7.5 m³/h/m²: 98 m³/h/unit 1000 W 77 W/m² E Grenzstraße Stuttgart Germany HDF-eng-TP (06/13) Former editions are invalid Subject to technical modifications page 23 of 25

24 Active chilled beams series HDF-600, ceiling installation Nomenclature HDF-600 / 4A / 2 / 1200 / 45 / 80 / A / S / 600 / RAL... ( (2) (3) (4) (5) (6) (7) (8) (9) (10) ( Series HDF-600 = HDF-600 (2) Type 2A = 2-way diffusion 4A = 4-way diffusion (3) Heat exchanger 2 = 2-pipe system 4 = 4-pipe system (4) Size 900 = = = 1800 (only as HDF-600/2A, 2-way diffusion) 2400 = 2400 (only as HDF-600/2A, 2-way diffusion) (5) Primary air flow rate 45 = E.g. 45 m³/h (6) Primary air pressure 80 = E.g. 80 Pa (7) Return air spigot A = With return air spigot O = Without return air spigot (8) Secondary air grille S = Expanded metal (only available for HDF-600/2A, 2-way diffusion) L = Perforated sheet steel (9) Ceiling gird (diffuser) 600 = 600 (diffuser length 592 mm) 625 = 625 (diffuser length 617 mm) (10) Surface of diffuser RAL... = Coated similar to RAL, indicate RAL-colour E Grenzstraße Stuttgart Germany HDF-eng-TP (06/13) Former editions are invalid Subject to technical modifications page 24 of 25

25 Active chilled beams HDF, ceiling installation Control system with CO 2 -Sensor VREactive Valve actuator (Smart Flow Technology) Cold water valve Warm water valve Unit Room Signal for flow rate controller V or Room temperature sensor Cool. signal V Heating signal V optional Signal for CO V Window contact 24 AC Power supply Presence sensor VCO 2 V max (10 V) 1. CO 2 control circuit The set value for the flow rate controller depends on actual CO 2 value V min (2 V) SOLL = nominal value, IST = actual value 0 CO 2, SOLL -CO 2, IST Set value for flow rate controller The highest value of the 2 control circuits is decisive. The highest value of the correcting variable of the 2 circuits (CO 2 or temperature) is chosen. Heating valve V min Cooling valve V max, 2. Temperature control circuit Low cooling load ( % of cooling capacity) cooling valves open, V prim remains at V min 0 T SOLL -T IST increased cooling load ( % of cooling capacity) cooling valves are completely opened, V prim opens to V max 1.Dient zur Identifizierung der letzten Seite E Grenzstraße Stuttgart Germany HDF-eng-TP (06/13) Former editions are invalid Subject to technical modifications page 25 of 25

26

27 Product Overview LTG Air-Water Systems Induction InductionUnits Ceiling installation HFFsuite SilentSuite Sill Installation HFV/ HFVsf System SmartFlow Floor Installation HFB / HFBsf System SmartFlow LHG System Indivent HFG HDF / HDFsf System SmartFlow QHG HDC FanPower Fan Coil Units Ceiling Installation Sill Installation Floor Installation LVC System Indivent VFC VKB VKH QVC SKB VKE KFA cool wave Decentral Decentralised Ventilation Units Ceiling Installation Sill Installation Floor Installation FVS Univent FVM FVD FVPpulse System PulseVentilation Engineering Services LTG Engineering Services Comfort Air Technology

28 Comfort Air Technology Air-Water Systems Air Diffusers Air Distribution Process Air Technology Fans Filtration technology Humidification Technology Engineering Services Air flow tests Thermodynamics Acoustics / Comfort Customised solutions FI NO SE EE RU IE DK LV GB RU LT BY NL DE BE DE PL FR LU CZ SK LI CH LI AT MD HU SI HR RO UA PT ES IT BA ME RS BG AL MK GR TR Grenzstraße Stuttgart Germany Tel.: +49 ( Fax: +49 ( info@ltg-ag.com LTG Incorporated 105 Corporate Drive, Suite E Spartanburg, SC USA Tel..: +1 (864) Fax: +1 (864) info@ltg-inc.net HDF-eng-TP (06/13) E Former editions are invalid Subject to technical modifications