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Central Heating & Storage Heaters Forum
Ground source heat pump issue
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<blockquote data-quote="wayne" data-source="post: 554144" data-attributes="member: 37799"><p>Hi all,</p><p>Having a bit of a nightmare with my ground source heating system. Recently had to carry out repairs to the compressor and also replace the heating circulation pump. </p><p>I seem to be getting a higher temperature on the returns from the heating system than what I’m sending out. It’s like the systems going in reverse?! I’ve checked the direction of the circulating pump I replaced and it’s going the right way. I can feel the temperature of the refrigerant at the heat exchanger and it’s very hot ~70degsC. But I’m currently pumping water into the heat exchanger at 41degsC and it’s coming out at 20degsC?! The temperatures seem right as I can feel the difference in temperature on the pipework. I’m pretty stumped if I’m honest. Does anyone have any suggestions?</p><p>It’s a Worcester Bosh Greenstore 9kw system</p></blockquote><p></p>
[QUOTE="wayne, post: 554144, member: 37799"] Hi all, Having a bit of a nightmare with my ground source heating system. Recently had to carry out repairs to the compressor and also replace the heating circulation pump. I seem to be getting a higher temperature on the returns from the heating system than what I’m sending out. It’s like the systems going in reverse?! I’ve checked the direction of the circulating pump I replaced and it’s going the right way. I can feel the temperature of the refrigerant at the heat exchanger and it’s very hot ~70degsC. But I’m currently pumping water into the heat exchanger at 41degsC and it’s coming out at 20degsC?! The temperatures seem right as I can feel the difference in temperature on the pipework. I’m pretty stumped if I’m honest. Does anyone have any suggestions? It’s a Worcester Bosh Greenstore 9kw system [/QUOTE]
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