Tecnoclima VX 930 [114/116] Extremely compact and silent made to measure equipment

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air and maintaining the interior at a temperature of 27°C in summer, with external conditions of 32°C and 50%

relative humidity, and an 18°C temperature in winter with -5°C and 80% r.h. outside. Obviously, to guarantee

unit functioning at even the highest outside temperatures, we sized, produced and tested them under extreme

utilisation limits of over 40°C, hence with a temperature range difficult to achieve and maintain in direct expan-

sion systems. In addition, due to the positioning of the equipment with respect to the boundary walls, we were

required to achieve maximum daytime noise limits of less than 70 dB(A) at three metres and even lower night-

time levels. So to be able to satisfy these demanding acoustic requirements we had to implement a series of

tional and even visual characteristics. For both the larger and smaller plants, six roof top units were specially

produced, particularly silent and compact, with extremely reduced lateral space requirements and an air

path different from that of standard models. Furthermore, as all the equipment was installed against a wall,

it was designed and constructed in such a way that access to internal parts for inspection and maintenance

purposes is possible by operating on three sides only, excluding the rear.

With regard to other constructional aspects, each unit includes a cooling section driven by ecological gas

coolant, with independent cooling circuits, and special low-rev anti-condensation fans with modulating func-

tion and each independent from the next. The heating section uses patented heat exchangers in corrosion-

resistant stainless steel, with ultra-high yield combustion. The air treatment section, characterized by its high

level yet low-resistance aeraulic performance, includes high-efficiency filters, an innovative antifreeze system,

investment, we were able to achieve a solid and significant

operational economy since in our independent units there is

no dispersion, no thermal inertia and equipment function is

directly proportionate to the conditioning needs of the area.

Moreover, as each piece of equipment has its own cooling,

heating and aerial circuit and functions independently, the

system proves decidedly more flexible and more reliable. So

on balance, in both economic and energy terms, this system

with independent roof top units proves greatly advantageous

from all points of view. In other words, a big step forwards”.