WHAT DO I NEED?

GUIDELINES by DR. ICE

Refrigeration on a boat must include an energy system of some type. The energy storage can be in batteries or cold plates.

A 12 volt DC direct evaporator system [our BD] for a small refrigeration only application is ideal IF the proper battery support system is fitted as well. It is necessary to install a battery bank of at least 300 ampere hours and a proper way to charge 50 to 80 ampere hours a day.

A 12 volt DC high draw with holdover plates [our DC 5000] will service a larger cabinet and a deep freezer. The high power draw when operating will require a 500 ampere hour battery bank as a minimum for a refrigerator demand and more batteries when a freezer is included. Some of the power draw may be by-passed by operating the compressor during daily battery charging. Lock out relays may be fitted to disable the compressor unless shore power or the engine is on.

The concept of cold plates is to act as an energy storage system. Freezing plates quickly while an engine or generator is on is faster than charging batteries to do similar work.

Rapid freezing of cold plates can be obtained with a 110 volt (or 230 volt) AC compressor [our BG 1000].

Fastest by far is the [Engine Drive] system. The speed is due largely to the essentially infinite power the engine has to turn the compressor. We can harness up to two horse power for this job.

Integration of systems is possible and wise for dockside operation [our Shore Assist systems], redundancy, and multiple source powering.

Are you confused? It will take discussion, information about your boat, and how you use it to decide the best SEA FROST for you. Call me today and we will talk about your boat.

Dr. Ice is standing by.

SEA FROST, 372 Route 4, Barrington, NH 03825 USA
Tel: (603) 868-5720 ~ Fax: (603) 868-1040
1-800-435-6708 (USA, Canada & Caribbean)
e-mail: sales@seafrost.com