Which equipment is appropriate for which cold room?
Depending on the application or the operating temperature range of the cold room, we have: high and medium temperature cold rooms to preserve fresh products between 0 and 18ºC; low temperature or negative temperature cold rooms to preserve products between -28º and 0ºC; and freezing tunnels with temperatures of -30ºC.
Refrigeration equipment for high temperature rooms.
For small and medium sized cold rooms and for product preservation applications between 8 and 18 ºC, split or semi-compact systems are available in silent or vertical construction, with dual flow evaporation unit that allows air circulation in the room without directly influencing the product. These units are available with compressors of between ½ and 10 HP with a cooling capacity of between 1.5 and 17 kW.
For larger cold rooms, the solution would be based on water, glycol or brine chillers with a low charge of R290 refrigerant for industrial applications. These chillers can integrate the hydraulic unit, being a Plug & Play system that provides high efficiency to the installation. These chillers are available for a cooling capacity between 7 and 800 kW, depending on the chiller model.
Refrigeration equipment for positive and negative temperature rooms.
For small and medium-sized cold rooms for fresh product preservation applications between -5 and 10 °C, and product freezing between -5 and -25 °C, compact units or wall, door or ceiling monoblocks with R290, a natural refrigerant, can be the ideal solution. These units are available with a refrigeration capacity between 0.6 and 2.5 kW.
If the installer decides to install an HFC unit, he can always do so with compact units or monoblocks that are available for a cooling capacity between 0.5 and 4 kW, or with split or semicompact systems that have a cooling capacity range between 0.6 and 14 kW.
For larger industrial cold rooms, it is possible to install compact R290 or HFC equipment, direct expansion systems or indirect systems, depending on the regulations in force in each country, as there are installation limitations depending on the refrigerant charge, or the kws of power.
Refrigeration equipment for tunnel freezers.
For freezing tunnels with temperatures down to -30°C, it is recommended to install a compact ammonia direct expansion unit with low NH3 refrigerant charge technology, no water consumption and Plug & Play installation.