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Three Way Valve, No Dhw Off On My New Controller
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<blockquote data-quote="freezergeezer" data-source="post: 303203" data-attributes="member: 21555"><p>Thanks for all your help so far. More investigating and apologies if this is a stupid question now.... </p><p></p><p>So, with the relay.... when the HW ON signal goes off at the programmer (and "turns off" the relay) it'll create a new 230V HW OFF signal which will go to the valve etc. in place of the old programmer's HW OFF signal. That's all making sense to me. This means that the HW OFF signal will stay energised at the valve until the HW ON signal comes back on at which point it'll turn off the HW OFF signal. I presume this is what the valve is expecting (i.e. a constant HW OFF signal to keep the valve in the HW OFF position) ? My worry is that a constant HW OFF signal (while the Hot Water is off) isn't going to damage the valve is it ?</p><p></p><p>Hope that made sense.</p><p></p><p>Thanks</p></blockquote><p></p>
[QUOTE="freezergeezer, post: 303203, member: 21555"] Thanks for all your help so far. More investigating and apologies if this is a stupid question now.... So, with the relay.... when the HW ON signal goes off at the programmer (and "turns off" the relay) it'll create a new 230V HW OFF signal which will go to the valve etc. in place of the old programmer's HW OFF signal. That's all making sense to me. This means that the HW OFF signal will stay energised at the valve until the HW ON signal comes back on at which point it'll turn off the HW OFF signal. I presume this is what the valve is expecting (i.e. a constant HW OFF signal to keep the valve in the HW OFF position) ? My worry is that a constant HW OFF signal (while the Hot Water is off) isn't going to damage the valve is it ? Hope that made sense. Thanks [/QUOTE]
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Three Way Valve, No Dhw Off On My New Controller
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