For a change, I have got an electrical problem. Could you respectable experts please give me some much needed advice?
On eBay I bought a couple of these tankless, instant hot water heaters for use on 220VAC:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=300454789352&ssPageName=ADME:X:RTQ:US:1123
Towards the bottom of this page they says that it has to be earthed (not on Neutral).
It heats up OK, yet the problem is that I measured about 100V between the water and (water input) copper pipe and (only) when I try to connect the earthing wire from the heater to the copper pipe, the automatic fuse goes off. The same happens if I try to connect this earthing wire on Neutral of 220V.
This hot water heater uses an open (uninsulated) resistor/ heating wire as element and water conducts. How to earth out the residual 100V?
Here it shows the inside of the heater:
http://www.productoracoral.com/repuestos_eng.html
On eBay I bought a couple of these tankless, instant hot water heaters for use on 220VAC:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=300454789352&ssPageName=ADME:X:RTQ:US:1123
Towards the bottom of this page they says that it has to be earthed (not on Neutral).
It heats up OK, yet the problem is that I measured about 100V between the water and (water input) copper pipe and (only) when I try to connect the earthing wire from the heater to the copper pipe, the automatic fuse goes off. The same happens if I try to connect this earthing wire on Neutral of 220V.
This hot water heater uses an open (uninsulated) resistor/ heating wire as element and water conducts. How to earth out the residual 100V?
Here it shows the inside of the heater:
http://www.productoracoral.com/repuestos_eng.html
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