| Isolator adventure begins [message #347686] |
Wed, 11 September 2019 15:04  |
Christo
Messages: 109
Registered: April 2019
Location: Weymouth, MA
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It started as a simple project: Replace the 12V house glass fuse panel with a ATC-based one. The furnace fuse position had melted at some point during the PO's tenure and it had been rewired using an inline glass fuse holder with undersized pigtail wires. Arrrgh. So, first step, kill the house power. I unplugged the shore power connection and disconnected the convenient knife switch at the house batteries. What? The panel's still live? Hmmm, what might the culprit be? I'd better go up front and have a look at the isolator.
Wow, there sure are a lot of wires connected to the isolator -- two on the top terminal, three on the middle, and two on the bottom -- better find the wiring instructions for my Sure Power 952. Aha! The center terminal should only be connected to the Bat terminal of the alternator. Arrrgh. Time for some wire tracing, and I'd better test the isolator with everything disconnected. This might also explain why my voltage when running read lower than I thought it should. To be continued...
Christo Darsch
GMC Nor'easters
1977 Eleganza II - "The Komet"
3.50 Power Drive, Disc Brakes, Alcoas
Weymouth, MA
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