Cooling unit with temperature adjustment using heat exchangers. These systems take advantage of cold primary fluid, deriving from an already present distribution line, which, passing through a heat exchanger, cools the secondary fluid, which in this case can also be different in nature. Used for thermoregulating ambients via an exchange coil (food sector), injection moulds (plastic, aluminium, etc...), extruders, press platens, rolling systems, cylinders for textile calenders, tanks, baths and many other applications. Heaters electronically managed using a micro-processor system with 4-20 mA control, equipped with a secondary circuit circulation pump, expansion tank, power panel, control panel, heat exchanger at high efficiency and certified control and safety systems. Available in versions for design temperatures up to 110°C and powers up to 400 kW. The equipment is supplied in a compact mono-bloc version, with a palletised support and the possibility of lifting using eyebolts.