The Polaris circular unit heaters, for ceiling installation only, are especially suitable for high rooms, even if the optimum ratio between the air flow-rate and the heat output make them suitable for any manufacturing environment. The large heat exchange coil and the fan downstream of the coil ensure optimum mixing of the air in the environment, meaning less stratification of the hot air than with traditional unit heaters. When supplied with cold water they can also be used in the summer months, thus allowing cooling at very reasonable costs.
The Polaris unit heaters are made in 10 sizes, all fitted with very silent two speeds motors motors, heat outputs from 17 to 107 kW and cooling capacities from 2 to 20 kW.
A heating system based on unit heaters is essentially made up of a boiler, a pump, the connection pipes, the unit heaters themselves and a series of electrical control components. The unit heaters can be installed on the wall or on the ceiling, at a height that varies from 3 to 18 m, depending on the size and the version.
The considerable flexibility in the temperature control of the water means that the optimum air outlet temperature can be achieved (similar to body temperature). A vast range of motors allows installation in all types of working environment. Rapid temperature stability, highly flexible installation and an excellent cost-benefits ratio make this solution the most in demand in high-tech countries, such as Germany, the home, together with Italy, of the main manufacturers of unit heaters.
Sabiana makes 7 different types of unit heaters, 3 of which can be connected to water chillers, consequently meaning that working conditions can be significantly improved even in the summer months, for very reasonable costs.
Featuring an accurate design, these appliances are built using high quality components that are designed to last. Numerous accessories can be used to distribute the air in any desired direction, with the possibility to mix ambient air and outside air. The use of a special induction diffuser, the induction flow optimiser Jetstream, reduces the stratification of the hot air on many of the versions, with consequent energy savings and a more uniform room temperature.