Manufacturers are rolling out a wide array of new equipment that utilizes all types of refrigerants, providing end users with a number of new options to consider.
It is always best to find and repair the source of the leak. But depending on the size of the system and the size and location of the refrigerant leak, it may not be an easy or inexpensive repair.
Refrigerant floodback occurs when liquid refrigerant enters the compressor’s crankcase during the running cycle. Refrigerant floodback will dilute the compressor’s oil with liquid refrigerant, which will cause oil foaming in the crankcase, washing the bearings clean of their lubricating oil.
In supermarkets, where HVAC and refrigeration equipment use 50 to 60 percent of all electricity consumed, new technologies and advanced control strategies have been developed to help boost energy efficiency as well as reduce emissions.
During this process, the company’s website states that it would coordinate with customers, suppliers, and employees to provide an orderly end to production. The company did not respond to requests for additional information, but the closure is expected to result in the loss of 470 jobs.
Refrigerant regulations are another reason why change is coming, as HCFCs will be phased out by 2020, and given their high GWP, HFCs will likely be phased down in the near future as well. At some point, supermarkets will need to start considering low-GWP alternatives, such as HFO blends, as well as so-called “future-proof” refrigerants, such as ammonia, CO2, or propane.
Some are calling for the Uber dynamic pricing model to be used in the HVACR contracting world, especially during peak times like summer, when demand for technicians often outstrips supply.
Here is the potential problem: A contractor quotes a customer on the compressor replacement, and he agrees to repair the cooler at the quoted price. Then, as the technician is completing the job — or even after he has finished replacing the compressor — he finds out there is another system problem.