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TESTING AIR FLOW IN SUPERMARKET CASES

One of the ways to assure that a customer’s case is performing as it should is to test the airflow. One of the best ways to do this is with a test instrument that measures feet per minute as illustrated.

Be sure to measure the airflow at the case discharge air outlet as illustrated below:

The manufacturer recommends that the best time to measure the case airflow is during the warmest time during defrost as the case cycle is terminating.

Below is a manufacturers chart detailing an example of a case specifications including the case design average air flow. Without the proper air flow, the case temperature will not reach the desired set point and the product integrity will suffer.


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RSES ADDS SECTION 609 CERTIFICATION TO EXISTING 608 CERTIFICATION

One of the U.S. Environmental Protection Agency’s many duties is to oversee programs that protect the stratospheric ozone layer. Section 608 and 609 of the Clean Air Act enforces activities that protect the ozone layer as they apply to refrigeration and air conditioning systems. READ MORE

Save time and take the test online! The 609 examination is an open book test that can be taken online for $20 with immediate results. Persons who pass the open book exam are awarded: a wallet ID card and a wall certificate.

 Click here to download a copy of the free study guide.

 Click here to take the exam now!

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TECUMSEH’S BOXLOAD.COM – ESSENTIAL TOOLS


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Top 4 Benefits of Energy Modeling

Have you utilized energy modeling to gain insights on your building’s energy consumption? Take a look at the top 4 benefits and learn the power of its impact from Daikin Energy Modeling Engineer, Judy Peters: READ MORE HERE  


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iManifold integration into MessureQUICK – MeasureQUICK

Awesome times at MeasureQUICK! What a difference a year makes. The integration of iManifold into MeausreQUICK breaths new life into a product that so many of you invested in. Thanks for your contin…

Source: iManifold integration into MessureQUICK – MeasureQUICK

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Hillphoenix Adds NXTCOLD® Low-Charge Ammonia System to Natural Refrigerants Portfolio

Press release via PRNewswire

Source: Hillphoenix Adds NXTCOLD® Low-Charge Ammonia System to Natural Refrigerants Portfolio

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HVACR Training!


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This Week, In Nashville

June2016 Promo

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Natural Gas Combustion Products

GasComponents

When 1 cubic foot of natural gas is burned with just enough air for complete combustion, it produces 11 cubic feet of combustion products (as shown in the illustration on this slide). This total includes 1 cubic foot of carbon dioxide and 2 cubic feet of water vapor formed in the burning of the gas. It also includes about 8 cubic feet of nitrogen, which did not take part in the burning of the gas. In virtually all burners, some excess air is used. This volume of excess air is added to the combustion products flowing from the flue outlet. A provision is made on most equipment to vent (remove) these flue gases from the home.

Excerpt from Gas and Oil Heating – Preparing for the NATE Exam

Available from the online store at RSES, The HVACR Training Authority.

 

 

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Why Purchase A True RMS Meter?

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