Application
Special characteristics
Nominal sizes
Variants
Construction
Attachments
Construction features
Materials and surfaces
Standards and guidelines
Maintenance
Functional description
Active chilled beams provide centrally conditioned primary air (fresh air) to the room and use heat exchangers for additional cooling and/or heating.
The primary air is discharged through nozzles and induces secondary air (room air), which passes through the heat exchanger.
Primary and secondary air mix and are then supplied to the room, passing the motorised damper blades.
Nominal length | 1500, 2000, 2500 mm | 1500, 2000, 2500 mm |
Length | 1530, 2030, 2530 mm | 1530, 2030, 2530 mm |
Height | 1840 mm | 1840 mm |
Depth | 327 mm | 651 mm |
Primary air spigot, diameter | 198 mm | 313 mm |
Primary air volume flow rate | 280 l/s or 1000 m³/h | 555 l/s or 2000 m³/h |
Cooling capacity | Up to approx. 13.5 W | Up to approx. 27 W |
Heating capacity | Up to approx. 8.5 W | Up to approx. 17 W |
Max. operating pressure, water side | 6 bar | 6 bar |
Max. operating temperature, water side | 75 °C | 75 °C |
The quick sizing table contains operating points for defined reference units. For other operating points you may use the Easy Product Finder design software.
Quick sizing – IDH-1
1500 | 250 | 900 | 305 | 56 | 6541 | 3527 | 3.0 | 12.6 | 7227 | 12.4 | 3.2 |
2000 | 333 | 1200 | 319 | 61 | 8455 | 4439 | 3.8 | 15.7 | 9016 | 15.5 | 4.1 |
2500 | 417 | 1500 | 356 | 63 | 10291 | 5263 | 4.5 | 18.9 | 10602 | 18.2 | 4.9 |
① Air-regenerated noise
Quick sizing – IDH-2
1500 | G | 500 | 1800 | 291 | 59 | 13083 | 7054 | 3.0 | 12.6 | 14455 | 12.4 | 3.2 |
2000 | G | 666 | 2400 | 312 | 64 | 16910 | 8879 | 3.8 | 15.7 | 18032 | 15.5 | 4.1 |
2500 | G | 834 | 3000 | 346 | 66 | 20582 | 10526 | 4.5 | 18.9 | 21205 | 18.2 | 4.9 |
① Nozzle variant ② Air-regenerated noise
Reference values
tR | 26 °C | 22 °C |
tPr | 16 °C | 22 °C |
tWV | 16 °C | 50 °C |
VW | 2000 l/h | 1000 l/h |
Induction units of Type IDH, with one-way or two-way air discharge and high thermal output, providing high thermal comfort levels in the occupied zone.
For freely suspended installation, preferably for very large internal spaces with room heights from 8 to 25 m.
The units consist of a casing with suspension points, a spigot, non-combustible nozzles, and a vertical heat exchanger with condensate drip tray.
Special characteristics
Materials and surfaces
Construction
Technical data
Sizing data
Primary air
Air-regenerated noise
Cooling
Heating
This specification text describes the general properties of the product. Texts for variants can be generated with our Easy Product Finder design programme.
IDH-2-WT-E3/2000/P1-RAL 9005
Air discharge | Two-way |
Heat exchanger | 2-pipe |
Electric actuator | 24 V AC, 0 – 10 V DC |
Nominal length | 2000 mm |
Exposed surface | Powder-coated, RAL CLASSIC colour |
IDH-1-E2/1500
Air discharge | One-way |
Electric actuator | 24 V AC |
Nominal length | 1500 mm |
Exposed surface | Untreated – galvanised sheet steel |
Dimensions [mm]
1500 | 1530 | – | 1 |
2000 | 2030 | 835 | 2 |
2500 | 2530 | 1235 | 2 |
Weight [kg]
LN | 1500 | 2000 | 2500 | 1500 | 2000 | 2500 |
Unit | 70 | 90 | 110 | 120 | 155 | 190 |
Contained water | 5 | 6 | 8 | 9 | 12 | 15 |
Installation and commissioning
LN [mm]
Nominal length
LWA [dB(A)]
Sound power level
tPr [°C]
Primary air temperature
tWV [C°]
Water flow temperature – cooling/heating
tR [C°]
Room temperature
tR [C°]
Room temperature
tAN [C°]
Secondary air intake temperature
QPr [W]
Thermal output – primary air
Qtot [W]
Thermal output – total
QW [W]
Thermal output – water side, cooling/heating
VPr [l/s]
Primary air volume flow rate
VPr [m³/h]
Primary air volume flow rate
VW [l/h]
Water flow rate – cooling/heating
V [l/h]
Volume flow rate
∆tW [K]
Temperature difference – water
∆pW [kPa]
Pressure drop, water side
∆pt [Pa]
Total pressure drop, air side
∆tPr = tPr - tR [K]
Difference between primary air temperature and room temperature
∆tRWV = tWV - tR [K]
Difference between water flow temperature and room temperature
∆tWm-Ref [K]
Difference between mean water temperature and reference temperature
LN [mm]
Nominal length
Mixed flow
The supply air is discharged from the diffuser into the space with a velocity between 2 and 5 m/s. The resulting air jet mixes with the room air, ventilating the entire space. Mixed flow systems typically provide a uniform temperature distribution and air quality within the space. The originally high velocity of the turbulent air jet decreases rapidly due to the high induction levels of mixed flow systems.
Heat exchanger
The maximum water-side operating pressure for all heat exchangers is 6 bar.
The maximum water flow temperature (heating circuit) for all heat exchangers is 75 °C; if flexible hoses are used, the water flow temperature should not exceed 55 °C. Units for other pressures and temperatures are available on request.
The water flow temperature (cooling circuit) should be at least 16 °C such that it does not permanently fall below the dew point. For units with a condensate drip tray the water flow temperature may be reduced to 15 °C.
Heat exchanger as 2-pipe system
Air-water systems with a 2-pipe heat exchanger may be used for either heating or cooling. In changeover mode it is possible to use all units within a water circuit exclusively for cooling in summer and exclusively for heating in winter.
Heat exchanger as 4-pipe system
Air-water systems with a 4-pipe heat exchanger may be used for both heating and cooling. Depending on the season, i.e. especially in spring and autumn, it may be possible that an office has to be heated in the morning and cooled in the afternoon.
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We are here for you
Please specify your message and type of request.
Tel.: +971 4 3417448 | Fax: +971 4 3417449
Contact
Thank you for your message!
Your message is send and will be processed shortly.
Our department for Service-Requests will contact you asap.
For general question regarding products or services you can also call:
Tel.: +971 4 3417448 | Fax: +971 4 3417449