The settlement is a victory for the manufacturers and contractors who may have been substantially harmed by the standards had they remained in place. Yet, many in the industry are concerned about the growing need to litigate in order to ensure regulations are developed properly and fairly.
System design, performance, and service conditions must be evaluated when retrofitting with a zeotropic or near-azeotropic refrigerant blend. Always follow the refrigerant manufacturer’s retrofit guidelines before retrofitting with any refrigerant, or system performance could be affected and/or injury may occur.
There is a vast selection of refrigerants, and sometimes a technician has a choice in selecting a refrigerant for a particular system. Knowing some of the basic properties of refrigerants can assist a technician in making that selection.
The variable refrigerant flow (VRF) market in the U.S. just got a bit more interesting. Johnson Controls, Hitachi, Ltd., and Hitachi Appliances announced the companies have completed their global joint venture agreement and will immediately begin operations of Johnson Controls-Hitachi Air Conditioning.
The revised OSHA Hazard Communication Standard now incorporates portions of the Globally Harmonized System of Classification and Labeling of Chemicals, which, according to OSHA, will benefit workers at more than 5 million workplaces in the U.S. by reducing confusion about chemical hazards, facilitating safety training, and improving knowledge of the hazards, especially for low-literacy workers.
Every year, the U.S. Environmental Protection Agency’s (EPA’s) Energy Star program acknowledges products it deems “Most Efficient” in the marketplace. Here is a snapshot of Energy Star’s Most Efficient Geothermal Heat Pumps of 2015.
Performance-based contracting involves HVAC professionals measuring the live, installed field performance of systems to ensure customers are getting what they’ve invested in. The field-performance measurements obtained by an HVAC professional are then used to rate the operating efficiency of the installed system.
The emergence of the smart home, interconnectivity, and a push for efficiency stemming directly from the White House is revitalizing HVAC equipment. Here are some up-and-coming, game changing HVAC components and technologies designed to propel the industry forward.
As common as this installation method is, it has some unintended consequences that can plague the safe and efficient operation of an HVAC system. Let’s look at why open filter racks can be a problem and the issues they might be creating in the systems you install, maintain, and service.