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01-09-2013, 01:42 AM #1
New Guest
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looking for inverter 24v AC to 24v DC
Recently I worked with McQuay water source HP DC board.
Since new board is too expensive, I decided using relays for over 30 units repairing.
There is a problem on heating mode with DC solenoid reversing valve.
So I need an inverter AC to DC but I can't find the inverter on internet.
Is here anybody where I can buy the inverter 24V AC to 24V DC.
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01-09-2013, 05:50 AM #2
Just go to Radio Shack and pickup a bridge rectifier.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2
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01-09-2013, 06:53 AM #3
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Try Kele.com
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01-09-2013, 08:30 AM #4
Make sure your rectifier has higher amps rating than your total load ( bigger rectifiers need heatsink)
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01-09-2013, 09:36 AM #5
And don't forget the voltage drop across the rectifier when choosing the transformer.
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01-09-2013, 10:00 AM #6
5000uF capacitor on DC side will fix it.
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01-10-2013, 01:29 AM #7
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Thanks everybody,
You guys push me into new electronic field!
Even though I am interested in making inverter with bridge rectifier and capacitor, I don't have enough time.
As following mark_ballard's link, I found exact inverter what I want.
For someone who has same problem with me, I copied the link below.
http://www.kele.com/Power-Supplies/DCP-1-5-W.aspx
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01-10-2013, 06:51 AM #8
An "inverter" changes DC to AC.
You want a rectifier.
Instead, get the right parts for the equipment.[Avatar photo from a Florida training accident. Everyone walked away.]
2 Tim 3:16-17
RSES Certificate Member
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01-10-2013, 01:24 PM #9
New Guest
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Thanks. I didn't know that.
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01-10-2013, 01:48 PM #10
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01-10-2013, 04:57 PM #11
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They dont make parts for those old McQuay anymore, I had retrofitted some old DC units with new Mark IV board and reversing valve, its time consuming and the parts aren't cheap, I thought about using an inverter, rectifier or whatever but found a place locally that rebuilds the old boards.
while the old units ran for 30+ years, we are having all sorts of problems with the newest models.
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01-10-2013, 07:06 PM #12
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Actually I have 35 McQuay units have run over 25 years.
Lots of problems were there, drain, compressor, reversing valve, board, gas leaking, fan motor...etc....
All most I fixed them. Two units were changed with new carrier units.
I hope that I can fix heating problem using by "rectifier" or "KELE module".


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