RBM APEX, Budowlana 46, 20-469 Lublin, Poland, l./Fax.:081 44-17-333, l.:081 44-17-334 www.v-k.pl e-mail: info@v-k.pl handel@v-k.pl

INSTALLATION INSTRUCTION

The Verano trench convector heaters are applied for heating residential spaces (one-family houses and block of flats), offices, service, commercial spaces, hotels, sacral, sports and others. It is recommended to install it along external glass partitions (such as: terrace doors, wide windows etc.). Preferred length of the trench convector is equal or longer than the glass surface. Also a possibility to install along internal walls or corners. A distance of app. 20 30 cm between the edge of the trench and window or external partition is required.

Trench preparation and installation of trench heater

The trench must be stable and made according to building standards. Damp-proof insulation of the trench is required, which should be similar to that made in the whole building. Also thermal insulation made of styrofoam th. 20 50 mm, is necessary for heat loss reduction. It is required to keep a distance of 20mm for the length and width and 30 mm for the depth. It should be considered that the side walls are not designed for transmitting significant pressure. Therefore when the voids between the walls of the casing and the trench are large it should be filled with caulking foam (not concrete).

The casing may be settled in the trench when the thickness of all the layer is settled. For aesthetic and functional reasons, the frame of the grid should be equal to the floor surface. The frame of the grid is fixed to the do flange of the casing and can not be subjected to bending forces. The casing should rest firmly in the trench, as the flange is not adjusted to transmit its weight. The packing should be taken off before installing the trench heater.

The brackets the heat exchanger is placed on are permanently fixed to the casing. In trench heaters of depth: 10, 16 and 20 cm the heating element is placed in the middle of the trench width. Whereas in trenches of depth: 30, 45, 55 and 65 cm it adheres to the internal wall.

The separating plates should be placed on brackets only after connecting the heater to the central heating installation. The said plate separates part of the casing, where cool air flows in, from the part where the air is heated and transferred into the room. The ferrules of the convector heating element terminal have a female thread and are placed on the right side of the trench. The empty space for the connecting the heater to the installation is about 18 cm. Turning the heat exchanger by 180 against the installation is not possible. The heater can be connected only one-sided. Connection may be done by strait-run or angle thermostatic valves.

Before installation it is required to make holes in the casing on the side of terminal brackets. The height of the holes and the wall to be drilled depends on the route of conduits. Placing conduits along the heat exchanger inside the casing is not allowed as it might cause disturbances of temperature profile and reduce the air circulation. Each heater is equipped with one manual vent. The Verano trench convector heater should be properly installed to obtain designed thermal power.

RBM APEX, Budowlana 46, 20-469 Lublin, Poland, l./Fax.:081 44-17-333, l.:081 44-17-334 www.v-k.pl e-mail: info@v-k.pl handel@v-k.pl

Regulation of the Verano trench convector heater work

Connecting heat exchangers in trench heater may be done using generally applied thermostatic valves with special heads. The valve is fixed on a heating element in the trench and the thermostatic head on the wall in the room. The valve and the head are connected by the capillary. The capillary is led inside the flexible corrugated conduit. The head should not be installed on the valve in the trench for two reasons: Firstly: such a location of the head disturbs proper regulation, secondly: makes it less accessible.

Pictures. Danfoss

The convector heater usually has a higher flow resistance than other heaters working in the installation, the maximum flow on the convector should be opened while the flow in other heaters should be reduced. For nominal thermal power, it is recommended to allow proper flow of the heating factor through the heating element. If the trench heater has a nominal thermal power exceeding 3 500 W, the connection with installation should be made with pipes diameter 18 mm.

Exploitation of Verano trench convector heaters

The finishing element of the trench heater is an elegant grid, made of natural or varnished aluminium or oak or ash wood. Grids made of natural wood should be stained and varnished for protection.

Grids are designed in a special way to close maximum 30% surface of the casing clear opening. The more the surface is closed the heater has more thermal power. Placing any pieces of furniture or carpets is not allowed during the heating season. It is necessary to maintain the inner part of the casing clean. The heat exchanger and the trench should be dusted before each heating season.

Grids are resistant to pressure and abrasion in light pedestrian traffic. For this reason it is not advisable to install trenches in places with anticipated heavy pedestrian traffic. Replacing the grid with a cover made of a similar material as the floor after the heating season could be a good solution. It also helps to keep the casing clean.