Type DID642

Super flat active chilled beam with two-way air discharge and horizontal heat exchanger, suitable for grid ceilings with grid size 600 or 625

Active chilled beam for heating and cooling, with 2-pipe or 4-pipe heat exchanger, for integration with various ceiling systems

  • Preferably for room heights up to 4.0 m
  • High heating and cooling capacity with a low conditioned primary air volume flow rate and low sound power level
  • Five nozzle variants to optimise induction based on demand, including adjustable twin nozzles, i.e. one pair of nozzles with different diameters
  • Hinged, removable induced air grille in two designs


Optional equipment and accessories

  • Control package
  • Additional casing for both supply air and extract air, or for additional supply air
  • Supply air and extract air units upon request
  • Adjustable air control blades for air direction control
  • Heat exchanger powder-coated black
  • Powder coating in many different colours, e.g. RAL CLASSIC
  • Adjustable air control blades for air direction control

DID642 00225904_0


  • Application
  • Description

Application

  • Active chilled beams of Type DID642 for the integration into various ceiling systems, preferably for room heights up to 4.0 m
  • Particularly suitable for grid ceilings with grid size 600 or 625
  • 2-pipe or 4-pipe heat exchangers enable good comfort levels with a low conditioned primary air volume flow rate
  • Energy-efficient solution since water is used for heating and cooling
  • Adjustable air control blades (optional) allow for the manual adjustment of the air discharge direction

Special characteristics

  • Adjustable air control blades for air direction control
  • Hinged, removable induced air grille in two designs
  • Horizontal heat exchanger as 2-pipe or 4-pipe system
  • Water connections at the narrow side, Ø12 mm Cu pipe, either with plain tails or with external thread or union nut, G½", flat seal
  • Internal nozzle plate with punched nozzles (non-combustible)

Nominal sizes

  • 900, 1200, 1500, 1800, 2100, 2400, 2700, 3000 mm (3000 only without additional casing)

Variants

Induced air grille

  • Perforated metal facing, decreasing apertures towards the edges
  • D1: Perforated metal facing


Heat exchanger

  • 2: For 2-pipe systems
  • 4: For 4-pipe systems


Nozzle variants

  • HE: Small
  • S1: Medium
  • S2: Large
  • HP: Extra large
  • DA: Adjustable twin nozzles, all nozzles are open (factory setting)
  • 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

  • Powder-coated RAL 9010, pure white, gloss level 50 %
  • P1: Powder-coated in any other RAL CLASSIC colours, gloss level 70 %
  • P1: Powder-coated RAL 9006, white aluminium, gloss level 30 %

Attachments

  • Additional casing for extract air or additional supply air
  • Adjustable air control blades
  • Water connection A1: G½" external thread and flat seal
  • Water connection A2: G½" union nut and flat seal

Accessories

Control components

  • KV: Cooling valve with actuator
  • HV: Heating valve with actuator

Each valve with kVS value 0.25, 0.40, 0.63 or 1.00


Water connection

  • R: Lockshield (2-pipe system: 1; 4-pipe system: 2), kVS value 1.32

Useful additions

  • Connecting hoses
  • Control equipment consisting of a control panel including a controller with integral room temperature sensor; valves and valve actuators; and lockshields

Construction features

  • Spigot is suitable for circular ducts to EN 1506 or EN 13180
  • Four suspension points for on-site installation (by others)
  • Five nozzle variants to optimise induction based on demand, including adjustable twin nozzles, i.e. one pair of nozzles with different diameters
  • Induced air grille: Perforated sheet metal with circular holes, with or without decreasing apertures towards the edges
  • Additional optional supply air spigot
  • Additional optional casing for supply or extract air

Materials and surfaces

  • Casing, induced air grille, casing panels on the narrow sides, spigots and fixing brackets made of galvanised sheet steel
  • Nozzle plate made of sheet steel
  • Heat exchanger with copper tubes and aluminium fins
  • Air control blades made of polypropylene, UL 94, flame retardant (V0)
  • Exposed surfaces are powder-coated pure white (RAL 9010) or in any other RAL CLASSIC colour
  • Heat exchanger also in black (RAL 9005)

Standards and guidelines

  • Products are certified by Eurovent (no. 09.12.432) and listed on the Eurovent website
  • Hygiene certificate to VDI 6022

Maintenance

  • No moving parts, hence low maintenance
  • The heat exchanger can be vacuumed with an industrial vacuum cleaner if necessary
  • VDI 6022, Part 1, applies (Hygiene requirements for ventilation and air-conditioning systems and units)

Technical information

Function, Technical data, Quick sizing, Specification text, Order code

  • Function
  • Technical data
  • QUICK SIZING
  • SPECIFICATION TEXT
  • ORDER CODE

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


The quick sizing table contains operating points for defined reference units. In this quick sizing, a primary air connection with D = 123 mm is considered for the nozzles HE and S1. For nozzles S2, HP, DA, DB and DS, a primary air connection with D = 158 mm is considered.



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

  • Adjustable air control blades for air direction control
  • Hinged, removable induced air grille in two designs
  • Horizontal heat exchanger as 2-pipe or 4-pipe system
  • Water connections at the narrow side, Ø12 mm Cu pipe, either with plain tails or with external thread or union nut, G½", flat seal
  • Internal nozzle plate with punched nozzles (non-combustible)

Materials and surfaces

  • Casing, induced air grille, casing panels on the narrow sides, spigots and fixing brackets made of galvanised sheet steel
  • Nozzle plate made of sheet steel
  • Heat exchanger with copper tubes and aluminium fins
  • Air control blades made of polypropylene, UL 94, flame retardant (V0)
  • Exposed surfaces are powder-coated pure white (RAL 9010) or in any other RAL CLASSIC colour
  • Heat exchanger also in black (RAL 9005)

Construction

  • Powder-coated RAL 9010, pure white, gloss level 50 %
  • P1: Powder-coated in any other RAL CLASSIC colours,, gloss level 70 %
  • P1: Powder-coated RAL 9006, white aluminium, gloss level 30 %

Technical data

  • 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: 6 bar
  • Max. operating temperature: 75 °C

Sizing data

Primary air

  • V _______________________ [m³/h]
  • Δpt _______________________ [Pa]

Air-regenerated noise

  • LWA _______________________ [dB(A)]

Cooling

  • Qges _______________________ [W]

Heating

  • Qges _______________________ [W]

This specification text describes the general properties of the product.

00240697_0

 Type
DID642       Active chilled beam

 Induced air grille
       No entry: Perforated metal facing, decreasing apertures towards the edges
D1       Perforated metal facing

 Heat exchanger
2       For 2-pipe systems
4       For 4-pipe systems

 Nozzle variant
HE       Small
S1       Medium
S2       Large
HP       Extra large
DA       Adjustable twin nozzles, all nozzles are open (factory setting)
       Sizing options: Adjustable twin nozzles, all nozzles are open
 (factory setting), adjustment during commissioning by others

DB and DS can be calculated with the EPF 

and adjusted by others The order variant for this is DA.

 Arrangement of casings and connections
LL       Casing left side, Water connections left side
LR       Casing left side, Water connections right side
RL       Casing right side, Water connections left side
RR       Casing right side, Water connections right side

 Additional casing – function and arrangement
       No entry: none
       Constructions LL, RR, are only available from L = LN + 250 mm
AV       Extract air, spigot at the front
AH       Extract air, spigot at the rear
ZV       Supply air, spigot at the front
ZH       Supply air, spigot at the rear

 Water connections
       No entry: Pipe with plain tails Ø12 mm
A1       With G½" external thread and flat seal
A2       With G½" union nut and flat seal

 Unit size [mm]
       L × LN – B
       Total length (diffuser face) × nominal size – width of front frame
       L is up to 7 mm shorter than LN

 

 Primary air spigot – diameter
123
158
2×123
2×158

 Additional casing – spigot diameter
       Only for AV, AH, ZV, ZH
123
158

 Exposed surface
       No entry: powder-coated RAL 9010, pure white
P1       Powder-coated, specify RAL Classic colour

       Gloss level
       RAL 9010 50 %
       RAL 9006 30 %
       All other RAL colours 70 %

 Air control blades
       No entry: none
LE        With air control blades

 Valves and actuators
       No entry: no control components
VS       With control components (supplied separately)

 Cooling valve
       No entry: none
KV       Cooling valve with actuator

 kVS value – cooling valve
0,25
0,40
0,63
1,00

 Heating valve
       No entry: none
HV       Heating valve with actuator

 kVS value – heating valve
0,25
0,40
0,63
1,00

 Lockshield
       No entry: none
R       With lockshield(s)

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


 

Attachments, Dimensions and weight, With additional casing

  • Attachments
  • Dimensions and weight
  • With additional casing

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.

  • It is possible to adjust several air control blades (i.e. a set of air control blades) together
  • For fine adjustment, the sets of air control blades can be disconnected from each other
  • To adjust a set of air control blades, use both hands to move the two outer blades of the set as required
  • Maximum possible adjustment is 45° to the right or left in steps of 15°
  • The blades are factory set to straight air discharge

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.

  • L1 = LN − 62
  • L2 = (LN − 62) ∕ 2
  • L3 = L – LN + 10
  • L4 = L – LN + 52

Aerodynamic data – extract air

Aerodynamic data – extract air Aerodynamic data – extract air
VExt VExt Δpt LWA
l/s m³/h Pa dB(A)

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]

ØD H HS

123

170

99

158

205

116.5


Dimensions [mm]

B E

593

193

598

195

618

205

623

208

B = Width of front frame


Weight

LN Lmin Lmax m
LN mm kg

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


  • L5 = L − 62
  • L6 = (LN − 74) ∕ 2
  • L7 = (LN − 64) ∕ 2
  • L8 = (LN − 60) ∕ 4
  • L9 = (L − LN + 53) ∕ 2) − 26

Dimensions [mm]

ØD ØD1 H HS

123

123

170

99

123

158

205

116.5

158

123

205

116.5

158

158

205

116.5


Dimensions [mm]

B E

593

193

598

195

618

205

623

208

B = Width of front frame


Weight

LN ØD1 [mm] Lmax m
LN 123 158 Lmax m
LN Lmin Lmax m
LN mm kg

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 examples, Installation details, Basic information and nomenclature

  • Installation examples
  • INSTALLATION DETAILS
  • Basic information and nomenclature

Installation and commissioning

  • Preferably for rooms with a clear height up to 4.0 m
  • Flush ceiling installation
  • Lengths from 893 to 3000 mm, and widths of 593, 598, 618 and 623 mm, hence suitable for all ceiling systems, particularly for grid ceilings with grid size 600 or 625
  • Side entry primary air spigot
  • Active chilled beam has 4 suspension points for on-site installation (by others)
  • Installation and connections to be performed by others; fixing, connection and sealing material to be provided by others
  • Heat exchangers are fitted with water flow and water return connections at the narrow side


Installation into T-bar ceilings or continuous ceilings

  • To avoid too much load on the ceiling, the suspension points should be used

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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