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Old 03.09.2017, 14:18
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Switch off water boiler?

Hi EF members,

I have a water boiler in a house where I will not live for the next weeks. The boiler is always on, lacking a off/on switch. I would like to turn it off and thus avoid wasting electricity.

Looking at the picture, where do you think I should act to switch it off? Why are there two switches (fs- and hs-boiler)? And two fuses? Why does the fs-boiler switch only allow me to choose between sun/day and moon/night? Lastly, any good reasons why I should not try to turn it off?

Thanks!

G
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Old 03.09.2017, 14:26
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Re: Switch off water boiler?

HS -> Haubtschalter.

Just turn the Switch and you'll be fine.
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Old 03.09.2017, 14:43
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Re: Switch off water boiler?

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HS -> Haubtschalter.

Just turn the Switch and you'll be fine.
Thanks, that's indeed what I did yesterday, but I got suspicious when I saw that the water kept flowing.

(I wonder what i wrote here to make someone groan?)

Last edited by giff; 03.09.2017 at 16:02.
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Old 03.09.2017, 14:44
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Re: Switch off water boiler?

Just run sufficient hot water when you return to avoid Legionaire´s disease
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Old 03.09.2017, 14:51
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Re: Switch off water boiler?

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Thanks, that's indeed what I did yesterday, but I got suspicious when I saw that the water kept flowing.
The water will still flow, and will even be hot until the heated water in the boiler is replaced with cold water. All the switches/fuses do is determine if and when the heating element gets power.

The sun/moon switch is a time switch - on the moon setting it will only supply electricity to the heater in the nighttime off peak period.

When you get back, if it isn't nighttime, then you'll want to switch the timer over to "day" if you want hot water within about 4-10 hours of coming home. How long it takes to heat the boiler will vary depending on the volume of the boiler, and the rating of the heating element.

It has two fuses because it is a 2 phase device.
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Old 03.09.2017, 16:02
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Re: Switch off water boiler?

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Just run sufficient hot water when you return to avoid Legionaire´s disease
Sounds like a great advice, will look the disease up!
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Old 03.09.2017, 16:57
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Re: Switch off water boiler?

FS is Fernschalter. The energyprovider (EWZ) sends a signal over the line when the tarif switches from the higher daytime to the lower night time and my even block the energy during absolute peak times .
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Old 03.09.2017, 17:45
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Re: Switch off water boiler?

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Sounds like a great advice, will look the disease up!
To show you how serious this has to be taken https://en.wikipedia.org/wiki/1999_B...losis_outbreak

Always run a tap that has not been used for some days for some time. And if it's a 60 liter boiler that has been off for some weeks, let it run a serious time so all old water is gone from the pipes and the boiler.
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Old 03.09.2017, 19:55
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Re: Switch off water boiler?

You could pull the fuses as well, doing so would make sure the boiler does not switch on.
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