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billy
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« on: March 19, 2012, 05:09:01 pm »

I have an xadc p50 and pro xm 1800. I believe the pro is the inverter and the xadc dc center? been looking for documents, manuals?
I also want to talk to you Bob about the bypass wiring the inverter. maybe you can tell by the post I'm at home and have nothing better to do!   pulling hair out
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aimee
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« Reply #1 on: March 19, 2012, 05:10:37 pm »

I just hobbled across my house in my cast trying to delete this post, because when the alert came in on my phone I thought it was for a prescription drug!  I think we should both have a drink.  Cheers
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billy
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« Reply #2 on: March 19, 2012, 05:15:42 pm »

hell of good idea!  rolling on the floor
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aimee
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« Reply #3 on: March 19, 2012, 05:26:48 pm »

It would certainly make more sense to the kiddos when having to explain why Mom is hobbling through the house screaming, "son of a BLEEP!  How did a spammer get IN???"

Ok, back to your regularly scheduled topic:  Angry
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bobander
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« Reply #4 on: March 19, 2012, 05:59:15 pm »

I have an xadc p50 and pro xm 1800. I believe the pro is the inverter and the xadc dc center? been looking for documents, manuals?
I also want to talk to you Bob about the bypass wiring the inverter. maybe you can tell by the post I'm at home and have nothing better to do!   pulling hair out

Hi Billy,

http://www.phoenixusarv.com/community/index.php/topic,527.msg3198.html#msg3198

This is the post that has the info on my mod, halfway through the post is where the Inverter fan noice is discussed.  Gradygal has since done this and maybe he has some more info. 

I just returned from two months in Arizona and the mod worked great.

Bob

The Pro XM1800 is the inverter.
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billy
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« Reply #5 on: March 19, 2012, 07:52:51 pm »

I guess I missed something. On the inverter there is an in and out , on the diagram what happens to the in?
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bobander
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« Reply #6 on: March 19, 2012, 08:26:59 pm »

Billy,

The "in" is removed from the inverter and attached to one set of contacts of the new switch.  Now the 110v goes directly to the circuits when the switch is in that position instead of being run through the inverter, that way the internal standby relay in the inverter is not being used and therefore does not heat up and need the cooling fan.

Read my two replys in the referenced post carefully, I tried to explain the way it works as told to me by a Xantrex tech.

Bob
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Bob Mahon
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« Reply #7 on: March 20, 2012, 08:17:13 am »

Bob,
When I tried the link it got me to a discussion about the AC unit.
Where is the wiring diagram/discussion?
Bob (maybe I should sign as Bozo to avoid name confusion?)
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bobander
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« Reply #8 on: March 20, 2012, 11:20:28 am »

Bob,
When I tried the link it got me to a discussion about the AC unit.
Where is the wiring diagram/discussion?
Bob (maybe I should sign as Bozo to avoid name confusion?)

Bob,

The fifth reply down the discussion changes to the inverter fan noise and my two posts including the wiring mod start about halfway down.

Bob A
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Bob Mahon
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« Reply #9 on: March 20, 2012, 04:25:37 pm »

Thanx Bob.
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billy
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« Reply #10 on: March 20, 2012, 10:39:45 pm »

So as I look at your diagram you have eliminated the "in" to the inverter?
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bobander
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« Reply #11 on: March 21, 2012, 01:02:35 am »

So as I look at your diagram you have eliminated the "in" to the inverter?

Yes, I replaced the internal auto-switching relay with a manual two way switch.  The relay is what needs to be cooled by the fan even when the inverter is not in use - no more fan noise in the middle of the night.

EDIT:
I re-read this and think it is not a clear answer to your question Billy.  I didn't replace or modify anything in the inverter itself, I removed the "in" wire from the inverter and ran it to the new manual two-way switch that I installed on the wood panel under the bed next to the inverter.  Now, the internal auto-switching relay inside the inverter is no longer powered and waiting for loss of 120v to make the switch to 12v, and therefore not requiring the cooling fan to cycle.
« Last Edit: March 21, 2012, 10:38:39 am by bobander » Logged

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billy
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« Reply #12 on: March 26, 2012, 06:27:10 pm »

So if you turn off the batteries switched by door, the inverter will not need to cool it self? The reason I ask when you are dry camping could you turn off the batteries?
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bobander
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« Reply #13 on: March 26, 2012, 07:16:01 pm »

So if you turn off the batteries switched by door, the inverter will not need to cool it self? The reason I ask when you are dry camping could you turn off the batteries?

Hi Billy,

The noise you hear at night is the inverter fan cooling the internal switching relay when it has 110vac holding it in the 110vac passthrough mode.  If you are dry camping and not hooked to shore power, the relay is not energized and the cooling fan won't run, so turning off the batteries makes no difference.  Even when hooked to shore power with 110vac going to the inverter, turning off the batteries won't stop the fan from running because it is the 110vac that energizes the relay in the inverter.  Also, turning off the batteries does not disconnect the batteries from the inverter, the batteries are wired directly to the inverter with heavy gauge wire.  You can silence the cooling fan at night while on shore power by turning off the breaker that sends 110vac to the inverter.  Or you can do the mod I have described.

Bob
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billy
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« Reply #14 on: March 26, 2012, 07:22:36 pm »

Aw- so, very interesting, thanks for the great info.


Edit:

There are two fans that, suck or blow thru the inverter, the one BIG problem is the dirt, crud and sawdust left in the compartment during building, personally I think this should have been cleaned up.
« Last Edit: March 27, 2012, 11:30:28 am by billy » Logged

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