Johntheo5's latest activity
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JJohntheo5 replied to the thread Aqualisa Shower stops pump.You have a positive head pump which requires a minimum flow both to start it and stop it, it probably has 2 flow switches, one on the...
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JJohntheo5 replied to the thread Bypass valve.OK, thanks. Why (if you are) are you running with such a low (residual) head of 150mb, 1.5M, it's far easier to balance with a higher...
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JJohntheo5 replied to the thread New radiator not getting hot.Can you try the TRV side again with the boiler/circ pump off, the flow from ech side then should be almost the same except that the flow...
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JJohntheo5 replied to the thread Why is my heating taking ages to get the house up to temperature?.Is the flow temperature reaching the now target temp of 70C? If so, and the return temp is 60C, dT10C, then (at a 20C room temp) the...
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JJohntheo5 replied to the thread Bypass valve.Can you have a look again sometime when the boiler is running steadily at the target & indicated flow temps and ideally, those or any...
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JJohntheo5 replied to the thread Bypass valve.Can't remember how I did it now but your boiler will have a permanent live and a switched live, the switched live will be from terminal...
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JJohntheo5 replied to the thread Bypass valve.Thanks Tony, It must be a characteristic of WB boilers to drop the pump speed to 20% on overrun. If happy with that 150mb setting then...
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JJohntheo5 replied to the thread New radiator not getting hot.The LLH makes your trouble shooting easier as you can rule out boiler HEX fouling as playing any part of the problem. Also, the UPS3 is...
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JJohntheo5 replied to the thread New radiator not getting hot.Just had a scan through some fairly recent posts of yours and see it seems that you have a LLH??, if so, what is the boiler...
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JJohntheo5 reacted to denso13's post in the thread Pumped shower will not start - airlocks with
Like.
I'm referring to a diagram in the manufacturer's instruction which shows where the hot should come from. I'm not saying that is the... -
JJohntheo5 replied to the thread Pumped shower will not start - airlocks.If the horizontal right (from the Surrey Flange) is going to the Shower pump/valve and the vertical is the vent, then installed...
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JJohntheo5 replied to the thread Bypass valve.IF the pump is mapped to one of the constant residual pressures then if set to 150mb the minimum pump speed should not fall below 46.3%...
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JJohntheo5 replied to the thread Number of cold radiators.Worth checking out that (if) ABV, these will bypass a lot of water if debris trapped under the seat ofrif incorrectly set, check the...
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JJohntheo5 replied to the thread Number of cold radiators.What make/model/age, of Boiler?. is there a ABV installed in the system? I see from another thread that the boiler is 25 years old, has...
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JJohntheo5 replied to the thread Bypass valve.Are you sure the pump speed is down to 10% at 3.0kW minimum boiler output, if so, then its maximum head is 7.0mb on pump overrun with a...
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