Refrigerant is a precious resource today due to European Union F-gas regulation. It is important that refrigerant not be released into the atmosphere because of its greenhouse effect.
During A/C services, refrigerant loss mainly occurs through the vacuum pump and when the refrigerant is forced out together with the compressor oil. WAECO ASC Low Emission service units collect the escaping refrigerant in a hermetic, pressure-tight oil container, so it can be returned to the refrigerant tank. The unique, patented technology results in a refrigerant loss rate of close to zero percent.
At Autopromotec 2019 in Bologna, Italy, Dometic announced some news about this award-winning technology.
WAECO ASC 3500G Low Emission service unit, with its integrated, powerful vacuum pump, qualifies for highly efficient A/C service on large vehicles, such as buses, trains and helicopters. This is where the WAECO Low Emission concept offers considerable savings, because the overall amount of refrigerant recovered per service run is much larger than with standard equipment.
Moisture-free feeding system
Our patented feeding system is now also available for the service units of other manufacturers thanks to new adapters and a new can size. Fresh oil and UV additive are stored in aluminium-laminated bags contained in protective metal cylinders. This keeps moisture out.
New heat belt for the refrigerant collector
One of the key issues facing bus and train workshops today is how to avoid the costly downtimes for their customers. The new heat belt from Dometic WAECO reduces the service time on bus and train air conditioners up to 80%.
Using conventional practices, servicing high-volume A/C systems takes several hours. Service technicians normally need to wait until the frozen collector is heated back to ambient temperature in order to extract all of the refrigerant from the system.
To prevent freezing of the refrigerant collector, a special heat belt has been fitted at the lowest point of the collector. The heat belt is activated at the same time as the compressor of the A/C service unit, so the heating process starts immediately at the beginning of the refrigerant recovery process, saving valuable time.
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