Merlin II: mini smart speed controller circuit board
Frigoboat's Merlin II is a small circuit board that plugs onto the controller of a Danfoss/Secop BD35 or BD50 air-cooled or keel-cooled compressor to control compressor speed automatically, to save energy, protect system's electronics, and reduce stress on various components.
- Green light blinks indicating compressor speed.
- Red light blinks 1 to 5 times if compressor stops for a fault reason, directing you to a solution.
Installation and Operation Instructions here.
NOTE: NON-RETURNABLE
Not for use on water-cooled compressors -W35F or W50F
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