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Old 05-22-2013, 06:13 PM   #15
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One more thing to check to be sure your emergency procedure will work if the alternator goes kapiut.

Remove shoreline, start the generator, measure the control voltage on the relay with the aux start button pressed to be sure it is engaged. Some IRD/BIRD devices have a disabling feature when the generator is running.

Do check out the device I referenced before. It seems to be working well and the generator disable function is bypassed.

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Old 11-25-2013, 01:23 PM   #16
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Originally Posted by bruceisla View Post
Got it ... Yes, your vintage is continuous duty and capable of remaining closed (picked) for long periods without damage. Yes, in normal use, with a working IRD, after a short delay (with ign. key on and engine running) the IRD picks the solenoid and connects the chassis and house batteries together. With the ign. key off, the IRD drops the solenoid and the batteries are not connected together. The boost switch is a parallel path to the solenoid and will close (pick) the same solenoid independently of the IRD. Yes, you could use the switch to tie the batteries together at any time on Genset or Shore Power. This one solenoid is the only one used to tie the batteries together ... there are other solenoids in your battery disconnect circuits (salesman switch) but they are unrelated to the IRD/Boost circuit.

Here's a writeup on the IRD ... on the page (with the write up) is a link to the schematic.

Battery Isolators - Battery Switches - Intellitec MV

Anyone have an updated link? The one above does not seem to work for me.


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Old 11-25-2013, 02:18 PM   #17
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Originally Posted by bukzin View Post
Anyone have an updated link? The one above does not seem to work for me.


depending on what you need .... try this one:


or this version:


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