Engineering

Worthington calls for rethink on disposable cylinder ban

USA: Refrigerant cylinder manufacturer Worthington Industries has called on the US EPA to rescind the forthcoming ban on disposable, non-refillable cylinders.The Ohio-based company has filed a petition for partial administrative reconsideration, asking the agency to rescind the ban on non-refillable cylinders which was included as part of the EPA’s final rule to implement the American …

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A GAME-CHANGING APP

I just can’t say enough about an app that has become an essential part of my life and the overall operation of our HVACR service team. I am talking about EVERNOTE. It is one of the best ways to assemble, organize and present information that I have ever seen. Now you may be thinking that …

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THE SUCTION LINE ACCUMULATOR

A defective expansion valve, refrigerant overcharge, or extremely low load may permit liquid refrigerant to reach the compressor from the evaporator. Because liquids are not compressible, the pistons and valves can suffer damage from such “slugs” of liquid. To prevent this, you can put a suction accumulator in the suction line between evaporator and compressor. …

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VIBRATION ELIMINATORS

Rigid connections at the compressor are prone to crack or break from vibration and stress. The cause may be discharge gas pulsation or compressor movement because of high torque. There is a simple way to prevent line breakage from these causes. Install vibration eliminators in both the suction and discharge lines. They should be the …

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