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Old 05-01-2013, 12:47 AM   #1
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Default Bought the wrong pid.. help?

Trying to save some money.. shoulda went auber i know. anyway heres the problem

I bought the mypin ta4s (TA4 SNR) for a gas herms setup. They work fine, except i screwed up and bought the ssr version when I wanted the relay version. I just want them to work in on/off mode and be able to switch 24vac that i supply via a transformer. Is there anyway to salvage my build with these? Im guessing I should bite the bullet and just order relay versions of the aubers.

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Old 05-01-2013, 01:40 AM   #2
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One solution is to put FETs between the PID output and a relay coil, but the FETs would need a power source to switch the coils, and by the time you put all that together it'd likely cost at least half the price of just getting the right version PID, plus there's likely a learning curve you'd need to travel.

I'd check with the vendor to see if they would exchange what you bought for what you really want...

Cheers!

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Old 05-01-2013, 09:04 AM   #3
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im looking at the auber 2342, can someone confirm this will work well with switching 24vac for gas valves.

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Old 05-02-2013, 03:07 AM   #4
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I'm not following... why not buy a cheap SSR, and place it inline to the input to your 24v transformer?

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Old 05-02-2013, 09:41 AM   #5
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Quote:
Originally Posted by chuckjaxfl
I'm not following... why not buy a cheap SSR, and place it inline to the input to your 24v transformer?
I thought about that yesterday after I got home from work. Seems like the simplest solution since everything else is wired already. I get the rest of the wiring for the switched and all but I have to admit the pids and ssr is all still Greek to me. If I have a steel backplate will that be enough of a heatsink for the ssr's since they will only be driving the 24volts or should I be safe and throw heatsinks on them and mount through the top of the box itself.
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Old 05-02-2013, 12:23 PM   #6
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Quote:
Originally Posted by bucfanmike

I thought about that yesterday after I got home from work. Seems like the simplest solution since everything else is wired already. I get the rest of the wiring for the switched and all but I have to admit the pids and ssr is all still Greek to me. If I have a steel backplate will that be enough of a heatsink for the ssr's since they will only be driving the 24volts or should I be safe and throw heatsinks on them and mount through the top of the box itself.
Well, my cheap SSR's are for 24v-480v, I think. They're not in front of me right now. Since that's on the edge of the range, I would put the SSR on the high side. And, yes, I would put a heat sink on it.
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Old 05-02-2013, 12:27 PM   #7
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The SSR doesn't need a big heat sink because the transformer won't be taking much current.

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Old 05-02-2013, 04:42 PM   #8
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thanks guys, I next dayed the stuff from amazon, will hook it up this weekend

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