A “video to rent” you can view online, covering reversing valve operation and methods for troubleshooting reversing valve failures. A cross section of a reversing valve is provided to show you the internal valve construction and operation. Now you can see the “mystery” inside the valve and how it works. You’ll also see the internals of the pilot valve and learn how it controls the main valve. A discussion of valve failures and methods for diagnosis will help you get through the occasional valve failures you see in the field. This video now available for download at Amazon.com for $2.00
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