#11 What's wrong with my actuator? Artwork

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Welcome to the Ask Caleffi podcast series featuring our tech support wizards, Greg Tubbs and Dan Firkus! They will discuss tricky heating and plumbing system problems they are tasked with solving daily and share insights from the field to help contractors discover the best way to work through tough jobs. Count on this dynamic duo to keep the series fun as they mingle in their own entertaining and relatable stories.

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#11 What's wrong with my actuator?

May 11, 2021 • Caleffi North America, Inc. • Episode 11

0:00 | 13:35

It seems that hydronic zone valves have been around forever. They are pretty bulletproof! But do you hear about end switches failing? What's going on? AND... what do I need to know before wiring a zone valve?

In this Episode, Greg and Dan discuss this common question from our Technical Support line: what's wrong with my actuator? Our Tech Support Gurus find that the culprit is typically a misapplication of the "end switch", a.k.a. the micro-switch. They explain the role of an actuator that contains a micro-switch and what kind of inrush thresholds are required to operate them successfully. They also talk about optimal installations including utilizing actuators with a ZVR relay control board that provides your customer with a top-notch product AND a top-notch warranty.

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