If refrigerant migration occurs in a system that has a crankcase heater, the vapor will be forced away from the crankcase and end up in the suction line. This refrigerant may condense in the suction line and cause slugging in the compressor’s cylinders on startup.
Thinking in temperature in-stead of pressure can help make the crossover to a new refrigerant much easier. The next time you’re faced with determining the correct operating evaporator or condensing pressure, think in terms of temperature and then convert it to pressure.
A new report has found that the environmental challenge caused by booming global demand for refrigeration could be far greater than previously thought. Due to changing demographics, particularly in Asia, the number of refrigerated vehicles on the road could feasibly reach 15.5 million by 2025, up from less than 3 million in 2013.
Montreal Protocol Amendment Would Phase Down HFCs in India
May 4, 2015
In industrial countries, production and consumption of HFCs should reach 15 percent of their 2013-2015 reference levels by 2035, stated the proposal. Developing countries would have until 2050 to reach the 15 percent level of their 2028-2030 use and consumption reference levels.
Low-GWP Refrigerants Approved for Scroll, Semi-Hermetic Compressors
May 4, 2015
Emerson Climate Technologies has approved DuPont Opteon® XP40 (R-449A) and XP10 (R-513A) for use in a wide range of its scroll and semi-hermetic compressors. This approval paves the way for the use of Opteon refrigerants in new and existing compressors for a number of refrigeration applications.
Recovering refrigerant from HVAC and refrigeration systems is an important day-to-day task for HVACR technicians. Here’s a look at some of the latest tools that help make this important job easy, along with tips from the recovery equipment manufacturers on how to efficiently and safely recover refrigerant.