Johntheo5's latest activity
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JJohntheo5 replied to the thread CH Pump Problem.I was allways a fan of the older type Grundfos but my plumbing friends tell me that the UPS3 especially and generally, all the newer...
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JJohntheo5 replied to the thread CH Pump Problem.If you have a double rad like the one shown with a air vent at (the top) on one end and a blank 15mm plug on the other end, the most...
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JJohntheo5 replied to the thread CH Pump Problem.The pumps age is on the front.....PC9913. as you said, week 13 1999.
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JJohntheo5 replied to the thread CH Pump Problem.Its served you well, time for the boneyard I think?.
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JJohntheo5 replied to the thread CH Pump Problem.You should be able I think, to remove the impeller assy. where arrowed.
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JJohntheo5 replied to the thread CH Pump Problem.Yes, why did the chicken/engineer cross the road?, who cares, the system is now working. A ABV will only work to a fashion in these A...
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JJohntheo5 replied to the thread CH Pump Problem.Your system looks like S plan with motorized valves to the CH and HW cylinder (coil) heating so when the CH or/and HW heating demand...
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JJohntheo5 replied to the thread CH Pump Problem.That's fixed speed II, 5.2M, probably OK, if you start getting any signs of air in the rads etc, change to fixed speed I, 4.2M, which...
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JThe installer told me I can have at any speed, I put it II for now as in pic.#
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JJohntheo5 replied to the thread CH Pump Problem.Ensure that the pump is NOT running at full speed, a UPS3 is a very powerful pump and will invariably create havoc on a open vented...
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JJohntheo5 replied to the thread CH Pump Problem.Why can't you just remove the pump's centre screw and see or feel if the pump shaft is rotating?.
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JJohntheo5 replied to the thread CH Pump Problem.If your pump was working, shaft seen to be turning??, then remove the head, as suggested, post back with photos, if pump shaft...
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JJohntheo5 replied to the thread CH Pump Problem.Suggest, opening & closing them several times, each time when shut give a little extra squeeze up which will help to get a effective...
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JJohntheo5 replied to the thread CH Pump Problem.The pump should run anytime there is a call for heat from the boiler, the pump may or may not continue running if the boiler cuts/trips...
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JJohntheo5 replied to the thread ABVs and Pump performance curves.Yes, I would think off terminal 10. There is AFAIK, no auxiliary (end) switch on these valves, the only way I can see it failing in the...
