Cold Plate/Hold Over Refrigeration

crosby cold plate

For many years Hold Over/Cold plate refrigeration was the way to go for long distance cruising yachts, and over the road refrigerated trucks...The function is Just as the Phrase Implies...Hold Over...For extended periods with a minimum of refrigeration system run time. The Advantages, and Disadvantages of a Hold Over system are similar to a block of ice because that is essentially what is done... The hold over plate/s in the box is/are approx 3" thick, and have copper tubing run through them … [Read more...]

To 2010 Boat/Yacht A/C Owners

Hello All...A New Year again...Hopefully yours was good.... I started this site last year to "put my feelers out"  about what owners and captains may want to learn and share about marine  a/c. The support has been more than I ever expected... So... My New Year resolution to you is expand the site we created...Because of your feedback I am going to begin adding to my store to allow you to order most of the common Marine A/C system items that I found you've needed,  but … [Read more...]

Marine A/C Pumps and Pump Relays

CruisairPumpRelay

We have touched on seawater cooling and lack of...Now what about if you have a intermittent problem, or the pump won't start at all ? In boats with multiple systems running on one seawater pump there is most likely a Pump Relay to receive a signal from each system to tell the pump it needs to run...That is unless it has been bypassed and the pump runs 24/7 from the breaker ( I see this done fairly often) Lets start with the breaker in the main panel...Most are labeled A/C pump or … [Read more...]

Chilled / Tempered Water Marine Air Conditioning A/C

DSCF1577

Dometic (Cruisair & Marine Air) tempered water systems are built for larger yachts and commercial craft. These two-stage systems use circulated water as a heat transfer medium. The warmed or cooled fluid is piped through a closed loop from the tempering unit in the engine room to any number of air handling units throughout the boat. Dometic's unique reverse-cycle design provides very efficient heating, even in relatively cold seawater temperatures, in many cases eliminating the need for … [Read more...]