Fan Coil System INDULVENT ec

Decentralised fan coil system which sets new benchmarks in terms of dimensions, cooling capacity, acoustics and comfort. INDULVENT ec was developed as a clear alternative to current ceiling fan coil systems and the associated disadvantages. INDULVENT ec offers 3D ambient air conditioning: maximum cooling capacity, low acoustics and highly comfortable inflow characteristics result in above-average user satisfaction.

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The strengths of INDULVENT ec


INDULVENT ec only reacts to the cooling requirements actually required in the room and thus avoids energy losses. The use of energy-saving EC technology and variable volume flows, adapted to the cooling load, ensure high energy efficiency at low operating costs.


Dimensions no larger than a standard air diffuser allow the INDULVENT ec to be integrated into all common ceiling systems. Different design variants and numerous special solutions offer architects more creative freedom than conventional fan coil systems.


Decentralised fan coil system developed for the highest demands on comfort, with a cooling capacity of up to 2600 watts. The hinged front plate allows maintenance and cleaning tasks to be carried out quickly and trouble-free from within the room. The integrated Vent-BUS technology enables efficient, user-oriented operation.


The energy-saving, acoustically optimised EC fan draws the ambient air into the interior of the housing and cools it via the integrated ring cooler. The cooled ambient air is then fed back into the room via the front plate with highly inductive air guide vanes. The major advantage which results from combining a fan coil system with inductive introduction of air is reflected in the significantly greater comfort. In contrast to current systems, which blow the supply air into the room without extensive mixing with ambient air, here Kiefer's own comfortable, draught-free ambient air flow is formed. A condensate dish with float module and a low-noise condensate pump are integrated in the interior of the housing to ensure operational reliability. This means that any condensate that arises can be carried away easily and safely via a condensate line. The supply air flow rate and the associated cooling capacity are regulated according to the requirements of the user and of the space. The integrated Vent-BUS technology enables master/slave operation without further outlay on control technology. In conjunction with a remote switch, it is even possible to achieve single-room control.

Cooling capacity up to 2.600 W
Size 600 x 600 mm / 625 x 625 mm
Installation length 335 mm / 375 mm (without condensate pump)
Cold water temperature 6 - 14°C
Accessories Straight-way valve with thermal drive 1/2" for cold water disconnection during downtimes, remote switch

Ambient air flow

A radial fan draws warm room air into the unit through the central air inlet in the front plate. This air flows in the inlet port through a dust filter which protects the internal
parts from dust and dirt.


Flow video INDULVENT ec Fan Coil System

Installation situation

INDULVENT ec is suitable for installation in all common system ceilings. The hinged front plate, fitted as standard, means that all components can be serviced without difficulty (VDI 6022).

Easy cleaning and maintenance

INDULVENT meets the hygiene requirements of ventilation and air-conditioning systems according to VDI 6022. The front panel can be easily opened via the standard folding  hinge. The case, filter, fan, heat exchanger and condensate tray are thus easily accessible for cleaning.

Folding hinge

for easy maintenance

Front plate INDULVENT ec RQD

Suitable for ceiling installation

Front plate view INDULVENT ec RQF

Suitable for freely suspended mounting
  • Fan Coil System INDULVENT ec

    The integration of INDUCOOL at Sparkasse Bayreuth. Read more »
    Foto © Gerhard Hagen

Product information und contacts

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Kiefer Luft- und Klimatechnik GmbH

Kiefer GmbH is a leading company in the field of ventilation and air-conditioning technology. The range of services includes consulting, planning and execution of plant engineering in both comfort and industrial sectors as well as installation and maintenance. For more than 3 decades, Kiefer has also been selling worldwide high-quality ventilation components, such as linear diffusers, wall passages, displacement outlets, chilled ceiling panels and modules for concrete core cooling, all developed in the company's own laboratories.


© 2018 Kiefer Luft- und Klimatechnik GmbH