How Important Is Refrigerant Leak Detection?

By: Daniel Stouffer

Refrigerant leak detection in HVAC and RAC systems is a challenging task even for the most experienced service technicians as any leak can be very well hidden in a system component, tubing, or in a safety control switch.

With the Environmental Protection Agency (EPA) regulation documented in The U.S. Clean Air Act (Sections 608 & 609), refrigerant leak detection takes on great urgency. The intent of the regulation is to lower emissions of gases harmful to the environment. As such, the new government rules no longer give service technicians the option of adding refrigerant when the system is low due to a leak. Rather, the leak has to be found and fixed within a specified period of time.

There are numerous types of testing equipment that can be used in refrigerant leak detection, some of it automated and others acting as sniffers for on site testing. To find the leak, service technicians have to determine the best method to use. Methods include a soap solution, a halide torch, dye interception, isolation of a component from the system, or pressurizing the system with dry nitrogen gas.

All of these methods take time and money, which can turn into a very expensive service call. A less costly alternative for companies is utilizing refrigerant management software that pinpoints the origin of a leak by either tracking service events over time to establish trends or to implement an automated leak detection technology.

An electronic leak detector is one of the fastest methods used in refrigerant leak detection. Leaks of HCFCs and CFCs can be found using refrigerant leak detectors. Quick identification of a leak is important because the release of these gases is heavily regulated by the EPA, with companies subject to fines if their emissions are not fixed within a certain time frame.

Refrigerant gas management software is a valuable tool in refrigerant leak detection. Such systems will be able to provide companies important details on the performance of its heating, ventilation and air conditioning (HVAC) and refrigeration and air conditioning (RAC) systems, monitor and detect refrigerant gas leaks, provide reports on refrigerant use, and accurately keep records on maintenance and repair.

Regulations on refrigerant leak detection describes and governs the proper repair of a leak and appropriate disposal of any refrigerant system which can't be repaired. These extensive requirements are in force in the United States, as well as several foreign countries. The treaties set forth a worldwide response to improving and protecting the planet.

Quick action of refrigerant leak detection is a great importance to the environment. Refrigerant gases are identified to cause damage to the ozone layer which have high global warming potential. To comply with environmental standards, many companies are investing in a refrigerant management program to monitor and track equipment usage.

Because of environmental and cost concerns related to refrigerant leak detection, many facilities with systems that use refrigerants are relying on refrigerant tracker applications. A refrigerant tracker monitors refrigeration and air-conditioning (RAC) systems and heating, ventilation and air conditioning (HVAC) systems around the clock and instantly detects the location of any leaks. Various studies confirm that industrial and commercial facilities will be able to save money every year by using leak detection monitoring systems.

About the Author

Sustainability Resource Planning (SRP) software from Verisae helps to manage carbon emissions tracking and reporting requirements across global organizations. The SRP platform makes it easier to report carbon emissions and track refrigerant gases. Learn more at http://www.verisae.com/articles

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California Global Warming Solutions Act (ab 32): an Introduction to Refrigerant Gas Management

By: Daniel Stouffer

How to stay ahead and address the early action requirements for Stationary Equipment Refrigerant Management to be included in updates to AB 32.

The California Global Warming Solutions Act (AB 32), first passed in 2006 with additional early actions taking effect in 2010, is a broad and comprehensive directive with the goal of reducing greenhouse gasses (GHGs) by approximately 25% by the year 2020. This objective of the early action stems from increases in carbon equivalent emissions in California since 1990. The intent of the legislation to reduce greenhouse gasses to their 1990 levels, thereby reversing 16 years of pollution in less than 14 years.

As part of the California Global Warming Solutions Act (AB 32) the Air Resources Board (ARB) has approved an early action measure to reduce high-global warming potential (GWP) greenhouse gas (GHGs) emissions by establishing new legislation and defining requirements related to improved monitoring of AC/HVAC systems, enforcement of regulations, reporting of refrigerant usage, and recovery, recycling, or destruction of high-GWP refrigerant gases.

The greenhouse gasses (GHGs) as defined by the California's AB 32 are identical to those gasses identified in the Kyoto Protocol. These gases are already being regulated, monitored, and managed by many other countries around the World. In addition to carbon dioxide (CO2), which is the most widely known GHG, the following gasses are also defined as GHGs with high global warming potential (GWP) carbon equivalent emissions by the AB 32 legislation:

* Methane (CH4): a byproduct of waste decomposition, and natural geological phenomena; the majority of methane is derived from natural gas drilling.

* Nitrous Oxide (N2O): a pollutant created by industrial processes, motor vehicle exhaust, and industrial air pollutants reacting with the atmosphere; like methane, nitrous oxide can also be a product of waste decomposition in nature and agriculture.

* Sulfur Hexafluoride (SF6): a gas used for various electrical applications, including gas insulated switchgear. Sulfur Hexafluoride is also used for experimental applications.

* Perfluorocarbons (PFCs) and Hydrochlorofluorocarbons (HCFCs): a collection of commonly used refrigerant and aerosol gasses with a wide variety of other commercial applications. CFCs and HCFCs are considered Ozone Depleting Substances (ODSs), as defined in title VI of the US Clean Air Act (Section 608).

The California EPA's Air Resources Board (CARB) has developed a complex and highly detailed system of greenhouse gas management for refrigerant gasses, known as the Stationary Equipment Refrigerant Management Program, and stricter standards for new or existing refrigeration systems installation and ongoing maintenance. According to CARB this strategy includes careful monitoring of potential refrigerant gas leaks, improved record keeping and certification of personnel as well as specifications for PFC and HCFC recovery equipment.

The proposed Stationary Equipment Refrigerant Management Program, which integrates two AB 32 early action measures, addresses the detailed monitoring and management of the PFCs and HCFCs noted above and includes tracking requirements for new and existing commercial and industrial refrigeration systems. Likely to be implemented by January, 2010, is the monitoring and management of high global warming potential (GWP) refrigerants in large systems in the range of 2,000 pounds of refrigerant gas.

CARB is charged with the monitoring GHGs and high GWP gasses, as well and the eventual development and enforcement of specific and quantitative new regulations covering Refrigeration Video which refrigerant management with the tracking, reporting, cylinder management, and gas recovery for stationary refrigerant and air conditioning (AC) systems all becoming key integral parts.

The CARB proposal could also involve fines for mismanagement of refrigerant record keeping, intentional venting of systems, and the inability to regularly submit the required refrigerant usage reports. The California Air Resources Board (CARB) is an extension of the EPA and works to monitor and enforce the US Clean Air Act. Section 608 of the Air Act regulates refrigerant gas usage, leaks, recovery, and annual reporting.

The overall intent of CARB's strategy is to monitor and reduce the introduction of man-made GHGs and high GWP gasses into the atmosphere, as called for in the California Global Warming Solutions ACT (AB 32) in effect since 2006 with tighter controls, monitoring, and overall regulations becoming enforceable by early 2010.

Refrigerant gas monitoring, tracking, and management are important business planning considerations. Just like organizations manage assets, like a delivery truck, the consequences the release of high GWP gases, such as refrigerant gases, must be consider. Refrigerants cost money, harm the ozone and environment, and are subject to mandatory carbon emissions reporting. As organizations with AC/HVAC systems containing refrigerant gas of 50 pounds or more will soon find out, the effective monitoring, management of data, and systematic reporting of refrigerant usage will be key to business success in our emerging carbon economy.



About the Author

To learn more effective refrigerant management tactics and the tools that support them, you can contact Daniel Stouffer, the Product Manager for Refrigerant Tracker. This web-based software makes it easy to monitor, manage, and report refrigerant gas usage. Stay in compliance with refrigerant management regulations. Visit Verisae's http://www.Refrigerant-Tracker.com

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