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Timer for autmatic watermaker flush


eric freedman
 

Hi,

Some of you use a timer to activate the flush mechanism for the watermaker.

What model unit do you use?

Fair Winds

Eric

Amel Super Maramu #376

 


Mark McGovern
 

Eric,

This programmable timer is very similar if not identical to the one that Bill Rouse has posted about using for this purpose:  http://www.ebay.com/itm/224040425984

You also need a 24vdc solenoid like this one for the timer to control the flow of freshwater:  https://www.burkert-usa.com/en/products/solenoid-valves/water-solenoid-valves/221602  

--
Mark McGovern
SM #440 Cara
Deale, MD USA


 

Yes, and let me add a warning about a potential mistake...I made it when I first did this.

Mark McGovern is correct about the solenoid that he says I used, but it was not the first one I used. The first one I used was indeed 24 volts, but AC rather than DC voltage. There are many 24VAC solenoid water valves available because this is what many lawn sprinkler systems use. And that is what I used until it failed about 2-3 months later. Be sure to check for DC Voltage:
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On Sat, Nov 28, 2020 at 1:16 PM Mark McGovern <mfmcgovern@...> wrote:
Eric,

This programmable timer is very similar if not identical to the one that Bill Rouse has posted about using for this purpose:  http://www.ebay.com/itm/224040425984

You also need a 24vdc solenoid like this one for the timer to control the flow of freshwater:  https://www.burkert-usa.com/en/products/solenoid-valves/water-solenoid-valves/221602  

--
Mark McGovern
SM #440 Cara
Deale, MD USA


eric freedman
 

Hi Mark,

I was just thinking of running a additional wire to the hot side of the fresh water  pump, with a switch in the circuit.

I would leave the pump circuit breaker off and when the timer is activated it would run the pump for a few minutes. My only concern is, can the timer carry the current needed for the pump.

Fair Winds

Eric

Amel Super Maramu #376

 

 

From: main@AmelYachtOwners.groups.io [mailto:main@AmelYachtOwners.groups.io] On Behalf Of Mark McGovern
Sent: Saturday, November 28, 2020 2:16 PM
To: main@AmelYachtOwners.groups.io
Subject: Re: [AmelYachtOwners] Timer for autmatic watermaker flush

 

Eric,

This programmable timer is very similar if not identical to the one that Bill Rouse has posted about using for this purpose:  http://www.ebay.com/itm/224040425984

You also need a 24vdc solenoid like this one for the timer to control the flow of freshwater:  https://www.burkert-usa.com/en/products/solenoid-valves/water-solenoid-valves/221602  

--
Mark McGovern
SM #440 Cara
Deale, MD USA


Mark McGovern
 

Eric,

It's appears to have a 16amp switch but you never really know with a ~$9 eBay timer.  If you are concerned, you could always have the timer control a relay and have the relay control the pump.

--
Mark McGovern
SM #440 Cara
Deale, MD USA


eric freedman
 

Hi Mark,

Where did you find the Amp rating?

Fair Winds

Eric

Amel Super Maramu #376

 

 

From: main@AmelYachtOwners.groups.io [mailto:main@AmelYachtOwners.groups.io] On Behalf Of Mark McGovern
Sent: Saturday, November 28, 2020 3:55 PM
To: main@AmelYachtOwners.groups.io
Subject: Re: [AmelYachtOwners] Timer for autmatic watermaker flush

 

Eric,

It's appears to have a 16amp switch but you never really know with a ~$9 eBay timer.  If you are concerned, you could always have the timer control a relay and have the relay control the pump.

--
Mark McGovern
SM #440 Cara
Deale, MD USA


Mark McGovern
 

Eric,

I didn't really see it specified anywhere in the eBay listing but if you scroll through the pictures you will see a schematic showing a 16amp switch.  It also looks to be identical to this timer sold on Amazon that states that it is has a 16amp switch:  https://www.amazon.com/Baomain-CN101-Digital-Programmable-Switch/dp/B01MRYMT3H/ref=sr_1_9?dchild=1&keywords=24vdc+timer&qid=1606595869&sr=8-9


--
Mark McGovern
SM #440 Cara
Deale, MD USA


eric freedman
 

Hi Mark,

Thank You,

I did not see the spec sheet before.

 

That will work nicely. I just have to remember to turn it off when I am on board.

Fair Winds

Eric

Amel Super Maramu #376

 

 

From: main@AmelYachtOwners.groups.io [mailto:main@AmelYachtOwners.groups.io] On Behalf Of Mark McGovern
Sent: Saturday, November 28, 2020 5:43 PM
To: main@AmelYachtOwners.groups.io
Subject: Re: [AmelYachtOwners] Timer for autmatic watermaker flush

 

Eric,

I didn't really see it specified anywhere in the eBay listing but if you scroll through the pictures you will see a schematic showing a 16amp switch.  It also looks to be identical to this timer sold on Amazon that states that it is has a 16amp switch:  https://www.amazon.com/Baomain-CN101-Digital-Programmable-Switch/dp/B01MRYMT3H/ref=sr_1_9?dchild=1&keywords=24vdc+timer&qid=1606595869&sr=8-9


--
Mark McGovern
SM #440 Cara
Deale, MD USA