Can I use a 220V programmable thermostat as a timer for an espresso machine? - Page 2

March 7th, 2012, 6:20 pm

thanks for the input....think i'll try it. No worries re neutral, my machine doesn't use/have one...pretty sure it's all european components so 240 all the way. Also if I mount the thermo/timer in the right spot set on high maybe it will provide a double fail safe for crazy overheating, which will not happen anyhow as I plan on only having it on for 2 hours a day. Once done I'll update this.....if it works it makes for a nice small inexpensive smart timer....the dedicated timers I have seen are all big and clunky and $$.

#12: Post by **Louis** » March 8th, 2012, 6:48 pm

zubinpatrick wrote:No worries re neutral, my machine doesn't use/have one...pretty sure it's all european components so 240 all the way.

Isn't EU 230V single phase? (i.e. is it a 230V live wire with a neutral) This would be different from the North American dual 110V is 180° phases (two +/-110V live wires).

I'm not sure what this mean for your particular setup... Having 110V where the machine expect 230V and -110V where the machine expects zero might present some risks?...

#13: Post by **allon** » March 8th, 2012, 8:34 pm

Louis wrote: I'm not sure what this mean for your particular setup... Having 110V where the machine expect 230V and -110V where the machine expects zero might present some risks?...

It presents a problem only if the machine is wired in an inherently unsafe fashion where it assumes that neutral = ground. Unlikely.

#14: Post by **duke-one** » March 8th, 2012, 9:45 pm

All 2 wire 240 is single phase. You don't get three phase till you have 3 hots all out of phase with each other. Whether it is one hot at 220 and a neutral or two out of phase 120v lines won't matter; you will still get 220 across the two lines.

#15: Post by **pizzaman383** » March 9th, 2012, 12:33 pm

You might check out this 220v timer:
http://www.aubetech.com/products/produi ... noLangue=2

I have the 120v version and use it for my Vibiemme.

#16: Post by **duke-one** » March 9th, 2012, 1:22 pm

Intermatic and other makers have 30amp 240volt timers that will take some work to use, such as adding line cord and outlet but these are heavy duty items that will last once you get over the price and the bit of work to set them up.

http://intermatic.com/en/Products/TimeS ... aters.aspx

http://intermatic.com/Products/TimeSwit ... 40AVE.aspx

#17: Post by **pizzaman383** » March 11th, 2012, 12:12 pm

Here is a plug-in timer from Intermatic that has a 240v model.
http://intermatic.com/Products/Timers/P ... eries.aspx

#18: Post by **duke-one** » March 11th, 2012, 4:23 pm

The HB 114 has the specs and is only $15 at Amazon. I'd like to get one and see what kind of "guts" it has. The other's I recommended are quite a bit more expensive and I'd bet they would last longer but at $15 you could go through a bunch of the cheap ones to equal the cost of the heavy duty item. Personally I go for reliability and a "buy it once" kind of equipment philosophy.
Duke