Application
Special characteristics
Nominal sizes
Variants
Induced air grille
Heat exchanger
Nozzle variants
Variants DS (small opening) and DB (large opening) can be adjusted by the customer if the nozzle variant DA has been selected. How the DID642 behaves in terms of ventilation with these settings can be calculated with the Easy Product Finder design program. DS and DB are not an order option.
Construction
Attachments
Accessories
Control components
Each valve with kVS value 0.25, 0.40, 0.63 or 1.00
Water connection
Useful additions
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 (five variants are available) into the mixing chambers; as a result of this, secondary air (room air) is induced via the induced air grille and passes through the horizontal heat exchanger, where it is heated or cooled.
Primary and secondary air mix and are then supplied to the room horizontally through the supply air slots.
Nominal length | 900, 1200, 1500, 1800, 2100, 2400, 2700, 3000 mm |
Length | 893 – 3000 mm |
Height | 170/205 mm |
Width | 593, 598, 618, 623 mm |
Primary air spigot, diameter | 123/158 mm |
Primary air volume flow rate | 10 – 125 l/s or 36 – 450 m³/h |
Cooling capacity | Up to 3100 W |
Heating capacity | Up to 2330 W |
Max. operating pressure, water side | 6 bar |
Max. operating temperature | 75 °C |
Active chilled beams of Type DID642, with two-way air discharge and high thermal output, providing high thermal comfort levels.
For installation flush with the ceiling, preferably in rooms with a height up to 4.0 m.
The units consist of a casing with suspension points, a spigot, non-combustible nozzles, and a horizontal heat exchanger.
Five nozzle variants to optimise induction based on demand, including adjustable twin nozzles, i.e. one pair of nozzles with different diameters.
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.
DID642–2–S1–LL/1193×1200×593/123
Induced air grille | Perforated sheet metal with decreasing apertures towards the edges, staggered pitch |
Heat exchanger | 2-pipe system |
Nozzle variant | Medium |
Arrangement of casings and connections | Casing on left, water connections on left |
Total length (diffuser face) × nominal length × width of front frame | 1193 × 1200 × 593 mm |
Primary air spigot, diameter | 123 mm |
Exposed surface | RAL 9010 |
DID642–D1–4–S2–RR–AV–A1/1798×1200×598/158/123/P1-RAL9006/LE/VS/KV–0.40/HV–0.25/R
Induced air grille | Perforated sheet metal, staggered pitch |
Heat exchanger | For 4-pipe systems |
Nozzle variant | Large |
Arrangement of casings and connections | Casing on right - water connections on right |
Additional casing – function and arrangement | Extract air, spigot at the front |
Water connections | With G½" external thread and flat seal |
Total length (diffuser face) × nominal length × width of front frame | 1798 × 1200 × 598 mm |
Primary air spigot, diameter | 158 mm |
Additional casing – spigot diameter | 123 mm |
Exposed surface | RAL 9006 |
Air control blades | With |
Valves and actuators | With |
Cooling valve | With |
kVS value – cooling valve | 0.40 |
Heating valve | With |
kVS value – heating valve | 0.25 |
Lockshield | With |
Set of air control blades
If a high cooling capacity is required in a very small space with active chilled beams, optional air control blades allow for adjusting the air discharge pattern such that the acceptable air velocity in the occupied zone is not exceeded. The airflow of each active chilled beam is spread and discharged according to the room geometry. If the use of a room changes, the air discharge pattern can be optimised by adjusting the air control blades accordingly.
If the air discharge is not straight, the water-side capacity will be slightly affected. The effects can be taken into consideration when the Easy Product Finder is used for sizing.
Aerodynamic data – extract air
12 | 43 | 0.5 | <15 |
18 | 65 | 1.0 | <15 |
24 | 86 | 1.9 | <15 |
30 | 108 | 2.9 | <15 |
35 | 126 | 3.9 | <15 |
40 | 144 | 5.1 | <15 |
50 | 180 | 8.0 | 20 |
60 | 216 | 11.6 | 26 |
70 | 252 | 15.7 | 30 |
80 | 288 | 20.6 | 34 |
Dimensions [mm]
123 | 170 | 99 |
158 | 205 | 116.5 |
Dimensions [mm]
593 | 193 |
598 | 195 |
618 | 205 |
623 | 208 |
B = Width of front frame
Weight
900 | 893 | 1500 | 20 – 33 | 1.8 |
1200 | 1193 | 1800 | 26 – 40 | 2.4 |
1500 | 1493 | 2100 | 33 – 46 | 3.0 |
1800 | 1793 | 2400 | 39 – 53 | 3.6 |
2100 | 2093 | 2700 | 46 – 59 | 4.2 |
2400 | 2393 | 3000 | 53 – 66 | 4.8 |
2700 | 2693 | 3000 | 59 – 66 | 5.4 |
3000 | 2993 | 3000 | 66 | 6.0 |
L = Total length (diffuser face)
LN = Nominal length
① Contained water
Non-active section as extension: 10 kg/m
Differences in weight for the various widths can be neglected
Dimensions [mm]
123 | 123 | 170 | 99 |
123 | 158 | 205 | 116.5 |
158 | 123 | 205 | 116.5 |
158 | 158 | 205 | 116.5 |
Dimensions [mm]
593 | 193 |
598 | 195 |
618 | 205 |
623 | 208 |
B = Width of front frame
Weight
900 | 1150 | 1185 | 1500 | 20 – 33 | 1.8 |
1200 | 1450 | 1485 | 1800 | 26 – 40 | 2.4 |
1500 | 1750 | 1785 | 2100 | 33 – 46 | 3.0 |
1800 | 2050 | 2085 | 2400 | 39 – 53 | 3.6 |
2100 | 2350 | 2385 | 2700 | 46 – 59 | 4.2 |
2400 | 2650 | 2685 | 3000 | 53 – 66 | 4.8 |
2700 | 2950 | 2985 | 3000 | 59 – 66 | 5.4 |
L = Total length (diffuser face)
LN = Nominal length
① Contained water
Non-active section as extension: 10 kg/m
Differences in weight for the various widths can be neglected
Installation and commissioning
Installation into T-bar ceilings or continuous ceilings
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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Contact
We are here for you
Please specify your message and type of request.
Tel.: +43 1 250 43-0 | Fax: +43 1 250 43 34
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.: +43 1 250 43-0| Fax: +43 1 250 43 34