An electronic-controlled, completely automatic non-condensable gas (air) refrigerant purger, this Automatic Air Purger For Refrigeration Plant is used to remove air from refrigeration systems. The condensing temperature is practically kept constant by this automatic air purifier, which also ensures ideal working conditions. The amount of non-condensable gasses has significantly decreased. This Automatic Air Purger For Refrigeration Plant is made particularly to preserve the effectiveness of an ammonia refrigeration plant by eliminating any air that may be present in the refrigerant charge.