Chiller Oy has created a new-generation family of flat blower units, the StudioLine?. We have rejected all the solutions that characterize present-day fan radiators.
The noise level can be even less than 20 dB(A) in a normal office room.
The panel radiator is installed on the suction side of the fan, thus ensuring a even flow through the radiator even at low air velocities.
The radiators are tested to a pressure of 30 bar, to ensure a total lack of leaks even in the most difficult conditions.
We have designed a completely new type of fan, with a noise-attenuating construction, for this product. The fan is fitted at the centre of the mass of the fan, so that the noise coming from the fan is partly attenuated by the mass of the motor. This solution avoids the moment effect created by the fan and the subsequent vibration, which arises in shaft-end solutions.
The linear alignment of the stator and the rotor is ensured by centring them relative to each other using a single shaft and not several surface bolts. Ball bearing are used instead of sleeve bearings, to prevent horizontal movement and the noise it causes in the fan.
Particularly attention has been paid to the materials used in the construction. The entire front plate of the machine and the condensate pan are made from stainless steel, to completely eliminate corrosion due to high humidity. The sheet metal in the casing structure is 1.5-mm thick ZnAl-treated zinc.
In condensing solutions, the condensate water is removed from the machine by free drainage or using a condensate-water pump. The condensate pump is rotary and operates on the twin-sensor principle. The first sensor starts and stops the pump while the second stops the chilling if the water level rises too much in the condensed water pan. The noise of the pump itself is 28 db(A).
Flat blower units can be equipped at the factory with valves (2 or 3-way valves).
The aluminium panel used in the radiator element is strongly corrugated while the pipes are in a finger arrangement relative to each other, which permits the large water temperature difference required in district cooling. In StudioLine? radiators, a water-side temperature difference of 9 °C (in special cases even higher) is approved.