Type IDH

Induction unit for ceiling installation, with one-way or two-way air discharge, vertical heat exchanger and condensate drip tray

Induction unit for heating and cooling, with 2-pipe heat exchanger, for freely suspended installation in large internal spaces, e.g. exhibition or production halls. The condensate drip tray is useful if the temperature temporarily falls below the dew point.

  • Very high heating capacity and cooling capacity (up to 27 kW) when installed at a height of 8 to 25 m
  • High comfort levels due to low airflow velocity in the occupied zone
  • Non-combustible nozzles made of aluminium
  • Motorised damper blade allows for precise setting of air discharge direction
  • Heat exchanger with plain Cu pipe (Ø22 mm) for the water connection


Optional equipment and accessories

  • Control system
  • One-way or two-way air discharge
  • Powder coating in many different colours, e.g. RAL CLASSIC

IDH-2-WT-E1/1500 00133622_0


  • Application
  • Description

Application

  • Induction units of Type IDH for freely suspended installation, preferably for very large internal spaces with a height of 8 to 25 m
  • Dissipation of very high heating and cooling loads (up to 27 kW) due to the 2-pipe heat exchanger and motorised damper blades that allow for setting the airflow direction precisely
  • Energy-efficient solution since water is used for heating and cooling

Special characteristics

  • Active induction unit for high volume flow rates and with high thermal output, ideal for industrial applications
  • One-way or two-way air discharge
  • 1 or 2 electric actuators allow for the precise control of the discharge direction and of the airflow in the occupied zone; in cooling mode, air is supplied to the occupied zone either horizontally or downwards at an angle; in heating mode, the air is supplied vertically to the occupied zone
  • Vertical heat exchanger with condensate drip tray including condensate drain that can be connected to a condensate pipe (to be provided by others), Ø12 mm both sides
  • Water connections at the narrow side, Ø22 mm Cu pipe, with plain tails

Nominal sizes

  • 1500, 2000, 2500 mm

Variants

  • IDH-1: Induction unit with a primary air volume flow rate of 280 l/s or 1000 m³/h; cooling load up to about 13.5 kW, heating load up to about 8.5 kW
  • IDH-2: Induction unit with a primary air volume flow rate of 555 l/s or 2000 m³/h; cooling load up to about 27 kW, heating load up to about 17 kW

Construction

  • Galvanised
  • Powder-coated RAL 9010, pure white, gloss level 50 %
  • P1: Powder-coated in any other RAL colour, gloss level 70 %

Attachments

  • E1: Electric actuator (3-point) 230 V AC
  • E2: Electric actuator (3-point) 24 V AC
  • E3: Electric actuator (modulating) 24 V AC, 0 – 10 V DC

Construction features

  • Spigot is suitable for circular ducts to EN 1506 or EN 13180
  • Non-combustible nozzles made of aluminium

Materials and surfaces

  • Casing, damper blade and perforated metal facing made of galvanised sheet steel
  • Nozzles made of aluminium
  • Heat exchanger with copper tubes and aluminium fins
  • Exposed surfaces either galvanised or in any RAL colour

Standards and guidelines

  • Products are certified by Eurovent (no. 09.12.432) and listed on the Eurovent website
  • Declaration of hygiene conformity to VDI 6022

Maintenance

  • Only few moving parts, hence easy to maintain
  • 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, Related products

  • 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 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.

IDH-1 IDH-2

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

LN Primary air Cooling Heating
LN VPr Δpt LWA Qtot QWH ΔtW ΔpW QWH = Qtot ΔtW ΔpW
LN l/s m³/h Pa dB(A) W K kPa W K kPa

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

LN Primary air Cooling Heating
LN VPr Δpt LWA Qtot QWH ΔtW ΔpW QWH = Qtot ΔtW ΔpW
LN l/s m³/h Pa dB(A) W K kPa W K kPa

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

Parameter Cooling Heating

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

  • Active induction unit for high volume flow rates and with high thermal output, ideal for industrial applications
  • One-way or two-way air discharge
  • 1 or 2 electric actuators allow for the precise control of the discharge direction and of the airflow in the occupied zone; in cooling mode, air is supplied to the occupied zone either horizontally or downwards at an angle; in heating mode, the air is supplied vertically to the occupied zone
  • Vertical heat exchanger with condensate drip tray including condensate drain that can be connected to a condensate pipe (to be provided by others), Ø12 mm both sides
  • Water connections at the narrow side, Ø22 mm Cu pipe, with plain tails

Materials and surfaces

  • Casing, damper blade and perforated metal facing made of galvanised sheet steel
  • Nozzles made of aluminium
  • Heat exchanger with copper tubes and aluminium fins
  • Exposed surfaces either galvanised or in any RAL colour

Construction

  • Galvanised
  • Powder-coated RAL 9010, pure white, gloss level 50 %
  • P1: Powder-coated in any other RAL colour, gloss level 70 %

Technical data

  • Nominal length: 1500, 2000, 2500 mm
  • Length: 1530, 2030, 2530 mm
  • Height: 1840 mm
  • Depth: 327, 651 mm
  • Primary air spigot, diameter: 198, 313 mm
  • Primary air volume flow rate: 280 – 555 l/s or 2000 – 1000 m³/h
  • Cooling capacity: up to approx. 13.5 kW or 27 kW, respectively
  • Heating capacity: up to approx. 8.5 kW or 17 kW, respectively
  • 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. Texts for variants can be generated with our Easy Product Finder design programme.

00132727_0

 Type
IDH       Active induction unit

 Air discharge
1       One-way
2       Two-way

 Heat exchanger
       No entry: none
WT       With 2-pipe heat exchanger

 

 Electric actuator
E1       230 V AC
E2       24 V AC
E3       24 V AC, 0 – 10 V DC

 Nominal length [mm]
1500
2000
2500

 Exposed surface
       No entry: Untreated – galvanised sheet steel
P0       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 %

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


 

Variants, Dimensions and weight

  • Variants
  • Dimensions and weight
IDH-2-WT-E1/1500 00133639_0


IDH 00257977_0
① IDH-2-WT
② IDH-1-WT
③ Spigot for LN = 1500
④ Spigots for LN = 2000, 2500


Dimensions [mm]

LN L A No. of spigots

1500

1530

1

2000

2030

835

2

2500

2530

1235

2


Weight [kg]

IDH-1-WT-E... IDH-2-WT-E...

LN

1500

2000

2500

1500

2000

2500

Unit

70

90

110

120

155

190

Contained water

5

6

8

9

12

15


Installation examples, Installation details, Basic information and nomenclature

  • Installation examples
  • Installation details
  • Basic information and nomenclature

Installation and commissioning

  • Preferably for halls with a height of 8 to 25 m
  • Freely suspended installation in large internal spaces, e.g. exhibition or production halls
  • Top entry primary air spigot Ø198 mm for IDH-1, or Ø313 mm for IDH-2
  • Length: 1530, 2030 or 2530 mm; height: 1405 mm; depth: 305 mm (one-way discharge) or 548 mm (two-way discharge)
  • Installation and connections to be performed by others; fixing, connection and sealing material to be provided by others
  • Induction unit has 4 suspension points for ceiling installation

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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Our department for Service-Requests will contact you asap.
For general question regarding products or services you can also call:
Tel.: +7 495 221-5161 | Fax: +7 495 221-5171