Convectors installation KORAFLEX FV, FV InPool, FI and FW

Case's types according to water inlets' location and lowering of faces for batch assembly

Lowering of faces of convector cases is used in places where visible connection of convectors to each other is not desirable (long rows of convectors, e.g. administrative buildings, hotels, etc.). Sketches dimensions are in mm. When ordering walkable grid it must be mentioned that it is for the lowered face convector.

Note: The KORAFLEX FV InPool convectors' individual cases cannot be mutually interconnected. These are made only in P0 design.

Water inlet

Profiles of aluminium frames

The convectors are fitted as standard with the silver U profile; when frame F is ordered it is enclosed with the delivery loose. Colour finishes of the decorative frames match the colour finishes of the aluminium grids.

Profiles of aluminium frames

Information for the installation of convectors

Production series KORAFLEX FW, FI

Production series KORAFLEX FV

Production series KORAFLEX FV

Convectors installation

Convectors installation – construction recommendations

Several general principles must be fulfilled to ensure proper functioning of the convector.

  • a properly installed element has the exchanger located further away from the window.
  • It is recommended to use the standard stainless-steel hoses with stainless-steel jacketing which always form a part of the delivery (unless recommended otherwise) for interconnecting the exchanger and the distributing pipeline. In practice they provide a better access under the heat exchanger without having to dismantle the heating system, e.g. during cleaning.
  • We recommend connecting the heating system with the use of shut-off valves and a thermostatic valve.
  • always connect the supply of the heat-carrying medium to the heat exchanger's pipe that is further away from the fan. In case of the 34 cm width the KORABASE 30 heat exchanger is used; the heat-carrying medium enters through one pipe and leaves through another one.
  • The KORAFLEX FW exchanger is a four pipe unit; one circuit feeds the heating circuit and the other one the cooling circuit.
  • Properly installed convector is laid horizontally with the convector's case edges intact and not bent to ensure correct function of the walkable grid and the bleeding of the exchanger possible.
  • Correctly installed convector's decorative frame is at the floor level with a margin of +2 mm.
  • We recommend to keep the cover plate on the convector for the entire duration of the building work to prevent any dirt falling inside the convector. The standard plate is not walkable, but a plate with increased load bearing capacity can be  ordered.
  • The fans set is held down to the convector's case using magnets. In case of the stainless steel version the set of fans will be mounted using dry zips. This system allows you to remove the fans from the convector during the installation to avoid their damage or soiling, etc. They can be easily taken out for cleaning also during standard operation.
  • The floor convector must be firmly set in the floor. The setting screws are only used for horizontal levelling of the convector case.
  • Before concreting the convector must be fixed to the floor using anchoring screws that will prevent vertical shifting of the convector during subsequent pouring of concrete. When the concrete is poured the convector can be loaded vertically. During concreting the convector must be cross-braced to prevent deformation of the case. When pouring other material (e. g. anhydride) seal thoroughly all openings of the convector to prevent it from flooding.
  • The convector's KoraFlEx FV InPool setting screw consists of a flag used as a ground anchor. This type does not contain anchors.
  • We recommend the fixing and sound proof insulation to be done in such a way that will allow a thin concrete to be poured to the convector's bottom and its sides. optimal noise reduction is achieved by direct embedding of the convector in concrete.
  • Installing the fan convector in free space can result in increased noise, therefore we recommend to order a case with noise absorbing foil.
  • Installation into double layer floors is described later.
  • Convectors (KORAFLEX FIand FW ) have built-in as standard a water (condensate) drain. During the installation do not forget to interconnect the case at the bottom of the convector with a pipeline with guaranteed gradient for wastewater or condensate removal. We recommend to equip the drain with an odour trap.
  • Convectors KORAFLEX FV InPool are intended for use in swimming pool areas. The separation barrier is used to capture water from the pool, but cannot serve as the standard pool water overflow. This part is always placed closer to the pool. The heating part with the exchanger and fans must be always further away from the pool. The convector is provided with drainage holes in each corner, 2×. Installation, operation and maintenance of this equipment require special conditions. Please read them thoroughly on our website or in the manual.

Caution: Floor convector KORAFLEX FV InPool with forced convection must be positioned so as to prevent even short term flooding of the section fitted with the motor and the fans.

Section of correct convector installation

Correct installation

Possibilities of convector incorporation by floor types

Installation by embedding in concrete

The most frequent installation option – an opening is prepared in the floor for the installation of the convector, or the convector is directly embedded in concrete. The installation procedure is described in more detail in the Convector installation chapter – construction part. It is adviceable to cross-brace the convector case before the concrete is cast to prevent its longitudinal deflection. It is also advisable to apply heat insulation (e.g. mineral wool, polystyrene) along the heat exchanger at the outer side of the case to avoid heat losses to the floor.

Installation in low double floor

In this case the convector must be fixed to the subfloor with the use of fixing anchors screws and aligned horizontally using the height adjustment screws. With regard to the free space under the floor and around the convector we recommend to fit the convector case with noise absorbing foil to suppress the noise. This design is suitable for loading under common usage.

Installation in raised double floor

There is an individual design for every project. The installation procedure is the same as in option B, but instead of fixing anchors screws a steel beam or other aid is used to supports the convector along its full width. With regard to the free space under the floor and around the convector we recommend to fit the convector case with noise absorbing foil to suppress the noise. The agreed technical design is based on the customer's requirements.

Dimensions of the mounting holes

Assembly instructions

Assembly instruction of Floor convectors KORAFLEX FV

Assembly instruction of Floor convectors KORAFLEX FV InPool