Installing a key switch will require the addition of a contactor as the switch cannot carry the full current load.I have been scouring the forums for some help on a set up like this...
First off, I am definitely no electrician but my father has some experience and we are both pretty handy.
I've got a couple of questions. I found this diagram from P-J on the forums, is there any way someone could show me how I would wire in a key switch into this. I do not want one of the kids to accidentally turn it on.
http://www.pjmuth.org/beerstuff/images/Auberin-wiring1-a17c-SYL-2352-5500w.jpg
Another quick question, I found this on eBay and was thinking that I could maybe monitor the MT without having to purchase another PID but still have an electrical display...but again I'm no electrician and I don't want to ruin any of the hardware that I am purchasing.
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P-J all of your diagrams are outstanding, I know I am learning a lot from the all and I really appreciate all the help you've given us (even if yo didn't know it!!)
I'd suggest placing it in the HLT. The same temp of the HLT will be transferred to the HERMS coil as long as the HLT water is kept in motion.This is great!! I think that I am going to build mine off of this with the two pumps!
Had one questions could I put the RDT in the heat exchanger coil return line? or is it better to monitor the MLT with it own thermometer? So i will know what the HLt temp is at?
Also if i have one of these already in my breaker box do i need the spa breaker box?
http://www.homedepot.com/webapp/wcs/stores/servlet/ProductDisplay?productId=202307131&storeId=10051&langId=-1&catalogId=10053&ci_sku=202307131&ci_kw={keyword}&kwd={keyword}&cm_mmc=shopping-_-googleads-_-pla-_-202307131&ci_gpa=pla#.UMjCGLZVoeg
Thanks,
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