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Old 09-19-2016, 03:29 PM   #3
dhays
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City: Gig Harbor
Vessel Name: Kinship
Vessel Model: North Pacific 43
Join Date: May 2015
Posts: 9,046
Thanks Ted. Yeah, hard to trace but I'll work on it. I have started to piece together a diagram bits at a time.

As near as I can tell, there are solenoids that interrupt the positive cable from the battery for each of the systems. ie, there is a solenoid which closes the circuit between the thruster batteries and the thrusters/crane. Same is true for the House panel, engine start, and genset start, and shore powered charger. Each solenoid is controlled by a switch on the 12v panel in the PH.

So the solenoid simply connects the circuit between the genset and its start battery. I am thinking that the switch may override that solenoid in the event that the house bank, which supplies the 12v for the solenoids, is complete dead. That way you can connect the Genset to its start battery and and get it started. While that makes sense, I can't figure out how that would actually be wired. I have a question into North Pacific to be sure and should hear back soon.
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Dave
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