We call them “natural refrigerants” because they are substances that occur naturally. The most commonly used ones are ammonia (NH3) and carbon dioxide (CO2). These substances were used as refrigerants until the 1930’s before fluorinated gases (f-gases) became more common in refrigeration systems.
Due to growing concerns about the harmful effects that refrigerants can exert on the environment, natural refrigerants have undergone a new rebirth, especially the NH3 and CO2 used for low temperature industrial purposes. Climate Technologies is partnered with M&M and Carnot Refrigeration to bring integrated, highly efficient cooling solutions using natural refrigerants to our customers. Each manufacturer offers environmentally sustainable refrigeration equipment for Commercial, Data Center, Industrial and Recreational applications.
Ammonia (NH3)
- Does not destroy the ozone layer.
- Produces temperatures down to -70 degrees C
- Alternative refrigerant for both refrigeration systems and air conditioning systems
- Can be used in new and existing equipment.
Carbon Dioxide (CO2)
- CO2 has a high thermal conductivity and high gas phase density, important factors for a good transfer of heat in evaporators, condensers and gas chillers; these characteristics allow a selection of smaller equipment compared to those using f-gases.
- Low pressure drop, allowing a reduction in pipe diameter
- Good alternative for commercial and industrial refrigeration
