Marine Systems — DC electrical

How to Keep Your Engine-driven Reefer at Peak Performance

Posted by Phillip Gutowski on

Over the last 25 years, there has been a dramatic shift in the types of refrigeration systems carried aboard cruising boats.  Today, 12 volt systems prevail, but the systems most often installed up to the late 90’s were driven by the main engine.  Engine drive refrigerators function just like the air-conditioner in your car.  A belt driven compressor forces a refrigerant gas through a typical vapor-compression cycle.  Though it’s often one of the less understood onboard systems for boat owners, these engine driven systems only consist of a few key components.  A compressor with a clutch activated by an electric...

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Securing the Batteries

Posted by Phillip Gutowski on

We have nine heavy lead acid batteries aboard our Tayana 42. One is a starting battery and the other eight make up our house bank. These house batteries are all 6 volt batteries wired as four series pairs. I decided to build the battery trays out of aluminum and essentially hang them from the cabin sole, or secure them to bulkheads where available. The more common way to do this would have been to use fiberglass to tab in horizontal supports to the inside of the hull. However, we had already painted the bilge and I like that the aluminum...

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