Vaillant aroVAIR pro VA 1-015 CSN - slim console fan coil 1.6 kW

Product detailed description

Vaillant aroVAIR pro VA 1-015 CSN is the smallest model in the slim console fan coil series - water-fed fan convectors with an extremely low depth of just 12.6 cm, which can be installed vertically at floor level or horizontally under the ceiling. Thanks to its compact and elegant design with an integrated touch control panel, this unit is a popular choice especially for new builds and low-energy houses, where the investor wants to achieve heating and cooling comfort without a bulky, visually disruptive body. A cooling output of 1.62 kW and a heating output of up to 1.81 kW make this model suitable for smaller rooms or supplementary spaces.

Technical parameters of the VA 1-015 CSN

In terms of dimensions, this is a compact unit with a width of 84 cm and a height of 58 cm, which allows installation even under lower windows or in spaces with a limited windowsill height. The extremely low depth of 12.6 cm is a key feature of the entire CSN range - compared with classic windowsill convectors, which tend to be 20 cm deep or more, this unit takes up considerably less space and is also suitable where a deeper unit would obstruct passage or furniture layout.

Why choose the aroVAIR pro CSN console fan coil

CSN console fan coils combine the advantages of both wall-mounted and floor-standing solutions - unlike wall-mounted WN units, which are hung high on the wall, CSN units are mounted low at floor level (similarly to a classic windowsill convector) or, conversely, completely the opposite, under the ceiling. This flexibility allows architects and investors to adapt the unit's placement to the specific layout of a room - for example under large glazed surfaces from floor to ceiling, where neither a wall-mounted radiator nor a wall-mounted fan coil can be installed, or conversely under the ceiling in spaces where the floor area needs to remain completely free. The integrated touch control panel also eliminates the need for a separate remote control or wall controller.

Who is the VA 1-015 CSN intended for

This smallest model in the CSN series is suitable for smaller rooms with a heat loss/load of roughly up to 1.5-2 kW - bathrooms, smaller bedrooms, hallways, or as a supplementary heat and cold source in combination with another main system (e.g. underfloor heating). You will particularly appreciate the low profile when installing under windows that reach almost to the floor, which are common in modern low-energy new builds.

Installation - floor-standing or ceiling-mounted

A key feature of the entire CSN range is the design option of dual mounting for the same unit. In vertical (floor-standing) installation, the unit is placed on the floor on separately purchased mounting feet (e.g. Vaillant VA 1-AF CS), either freestanding by the wall or recessed into a prepared niche/recess in the building structure, where it remains practically invisible except for the front grille. In horizontal (ceiling-mounted) installation, the unit is hung under the ceiling using suspension elements, which is used mainly in spaces with a suspended ceiling or in commercial spaces where it is undesirable to take up floor space. Thanks to a depth of only 12.6 cm, the unit is remarkably unobtrusive in both configurations compared with common windowsill convectors.

The hydraulic connection (heating/cooling water supply and return pipes) is made at the rear or side of the casing, depending on the specific mounting orientation. To simplify switching between heating and cooling mode, we recommend adding a set with a 3-way switching valve (e.g. Vaillant VA 1-A3WV CS), which greatly simplifies integration into an existing hydraulic system without the need to separately design and install a switching fitting.

Compatibility with heat sources

CSN console fan coils are designed to work with Vaillant aroTHERM and aroTHERM plus (air-to-water) heat pumps, where a low heating water operating temperature (typically 35-45 °C) maintains a high heat pump COP while also enabling summer cooling by connecting to the cold water circuit in reverse mode of the heat pump. The unit can also be connected to a Vaillant flexoTHERM (ground-to-water) heat pump, or used as a supplementary heating element in a system with a Vaillant ecoTEC or ecoCOMPACT condensing boiler (in that case without the cooling option).

Control and comfort

Unlike wall-mounted WN units, which are controlled by a wireless remote control or an optional wired controller, CSN console units have an integrated touch control panel directly on the front panel of the device. This simplifies installation (there is no need to deal with the placement of a separate controller) and also allows immediate control over the unit directly on site. For integration into a building management system or central control of several units at once, the VA 1-015 CSN offers the option of communication via a Modbus bus, which you will appreciate especially in larger projects or buildings with a central building management system (BMS).

Maintenance and care

The front panel of the CSN unit conceals a replaceable/washable air filter, which is recommended to be checked and cleaned approximately once every 4-8 weeks during a period of intensive operation (both heating and cooling season), while a check once every 2-3 months is sufficient for normal use. In cooling mode, it is advisable to check the condensate drain's patency once a year before the start of the summer season, to prevent it from accumulating inside the unit, which is particularly important in floor-standing installation, where the condensate drain needs to be correctly sloped.

Frequently asked questions

When designing a combined system with several CSN console units in one flat or house, we recommend having the hydraulic connection and manifold sizing carried out by an authorized Vaillant heat pump installation company, which also registers the device and activates the manufacturer's warranty.

Summary - why the VA 1-015 CSN

The Vaillant aroVAIR pro VA 1-015 CSN is a compact, flexible solution for smaller rooms, where thanks to its extremely low profile of 12.6 cm, installation is possible even where a classic radiator or a deeper convector would not fit. The integrated touch panel, the option of both floor-standing and ceiling-mounted installation, and compatibility with the Vaillant aroTHERM plus heat pump make it a practical part of a modern heating and cooling system.

Comparison with other types of aroVAIR fan coils

Compared with the wall-mounted VA 3-WN fan coil, which is mounted high on the wall as a radiator replacement, the CSN console version brings a completely different placement philosophy - the unit sits low at floor level (or, conversely, under the ceiling), which is advantageous especially in rooms with large windows reaching almost to the floor, where there simply isn't enough free wall space to hang a wall-mounted unit at height. Compared with the KN cassette fan coil, which requires a suspended ceiling and concealed installation above the ceiling, installing a CSN unit is simpler and does not require any intervention in the ceiling structure - free space at floor level or the option of hanging under a flat ceiling is enough.

In terms of both price and installation, the CSN console version is often the most accessible choice for renovations of flats and houses where no intervention in the ceiling is planned (e.g. flats in apartment buildings with low clear ceiling height) and where a free section of wall at floor level is available, for example under a window or in the corner of a room.

Typical deployment scenario

Imagine a smaller flat or family house where the investor is addressing heating and cooling for a bathroom, small bedroom or study with a limited windowsill height (for example due to a large window reaching almost to the floor). In such a space it is not possible to hang a classic radiator or a wall-mounted WN fan coil at a height where it would not obstruct the window, yet the room has sufficient heat loss to require an active heating and cooling element. This is exactly where the VA 1-015 CSN comes into its own - a low, slim unit at floor level that visually almost blends into the wall while offering an output of 1.62/1.81 kW, sufficient for a typical room of up to approximately 15-20 m2 with standard insulation.

This model is also equally suitable as a supplementary cooling/heating element in combination with primary underfloor heating, where underfloor heating provides basic thermal comfort and the fan coil handles fast control and, above all, summer cooling, which underfloor heating alone generally cannot provide sufficiently.

Energy efficiency

Thanks to its ability to operate with a low heating water temperature (typically 35-45 °C), the VA 1-015 CSN maintains a high COP for the Vaillant aroTHERM plus heat pump throughout the entire heating season. In summer cooling mode, the unit consumes only the energy needed to drive the fan (on the order of tens of watts), since the actual cold is generated by the outdoor heat pump. The integrated touch panel also allows for simple setting of a time program directly on the unit without the need for any additional accessories, which helps users remember to reduce output during absence or at night.

Aesthetic integration into the interior

CSN console units have a flat, elegant white casing with a minimalist design without visible screws or bulky frames, giving a modern and unobtrusive appearance even in more demanding interior styles. The integrated touch panel replaces traditional mechanical controls (rotary knobs, switches), contributing to a clean visual impression. In floor-standing installation, the unit is low enough not to interfere with the field of view when seated; in ceiling-mounted installation, it takes up no floor space at all, which you will appreciate especially in smaller rooms, where every centimetre of free floor is valuable.

Recommended additional accessories

When ordering the VA 1-015 CSN unit, we also recommend considering these original accessories from our shop's range, which are part of the same product line:

• Vaillant VA 1-A3WV CS set with a 3-way switching valve - simplifies the hydraulic connection and switching between heating and cooling mode without the need to separately design and install a switching fitting.
• Vaillant VA 1-AF CS mounting feet - needed for vertical (floor-standing) installation of the unit, when it is not recessed into a niche or mounted under the ceiling.

Both accessories are compatible with the entire range of slim console units, including the VA 1-015 CSN and the larger VA 1-025 CSN.