Vaillant aroVAIR fan coils

Vaillant aroVAIR fan coils of the VA 2 CN range are two-pipe fan convectors designed for supplementary cooling and additional heating of rooms connected to a Vaillant aroTHERM air-to-water heat pump (or another source of chilled/hot water). Unlike a conventional wall-mounted air conditioner, they need neither their own outdoor unit nor a refrigerant circuit – they work with water supplied from the building's existing hydraulic system, so in summer they can efficiently cool even rooms that have never had air conditioning, without having to run refrigerant piping.

The range covers four output series – VA 2-015 CN, VA 2-035 CN, VA 2-045 CN and VA 2-075(070) CN – from small bedrooms up to larger living rooms and open-plan layouts. The units have a slim sill-mounted (console) shape with the option of under-ceiling or free-standing installation (using feet ordered separately), a quiet direct-current (DC/EC) fan with stepless control of three speeds, and a three-row heat exchanger ready for a G3/4" connection.

Frequently asked questions

• Do I need to buy anything else with the fan coil? Yes – usually a room controller (VA 2-WC D/C or VA 1-WC DC) and, for two-pipe switching between heating and cooling, a kit with a 3-way diverter valve; for free-standing installation also a set of feet.
• Can a fan coil also heat? Yes, this is a two-pipe design – in winter hot water from the heat pump passes through the same heat exchanger and the unit tops up the room temperature, in summer chilled water flows through it and the unit cools.
• How does a fan coil differ from a split air conditioner? A fan coil has no compressor or outdoor unit of its own – it uses water from the already existing heating/cooling circuit, which makes it particularly suitable as a complement to an air-to-water heat pump.
• Which output should I choose for my room? As a guide, VA 2-015 CN for a smaller bedroom, VA 2-035/045 CN for a standard living room, VA 2-075 CN for a large open space or several rooms connected to one circuit.