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RE: Pressure drop Primary circuit
By JamesPa, 6 minutes ago |
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| PHE s can fail, I'm not sure what the most common failure mode is. If a plate separating the two circuits failed pressures will presumably equalise, if a plate between one circuit and the air fails p... | ||
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RE: Ecodan consuming 100kwh per day in new build!!!
By rhh2348, 31 minutes ago |
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| Any updates, OP (@anca1808)? | ||
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RE: How many compressor starts per year
By GC61, 54 minutes ago |
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| @editor @mikef For Comparison I have a Viessmann Vitocal 151-A which will have been installed 2 years next month. So far... Compressor Hours 5804 and Compressor Starts 3579. On that basis I should rea... | ||
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RE: Pressure drop Primary circuit
By ohdearism, 2 hours ago |
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| The primary circuit from the Samsung unit transfers its heat to the secoundry / heating circuit through 2 metal plate heat exchangers. Attachment : IMG_0493.jpeg Attachment : 0.jpg Do t... | ||
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RE: Hitachi Yutaki SCombi Heat Pump - Thermal Off's
By JamesPa, 2 hours ago |
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| Hitachi is sadly not alone. The OAT sensor should be in the shade and out of any influence from the heat pump itself. only some manufacturers do this! Im guessing it might do this to minimise heat ... | ||
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RE: Hitachi Yutaki SCombi Heat Pump - Thermal Off's
By trebor12345, 2 hours ago |
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| The fan does turn off, water from inside is then pumped in reverse, power is take to heat the water and then the fan and compressor runs. Takes about 5 minutes, so this seems OK. I am currently runni... | ||
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RE: Pressure drop Primary circuit
By JamesPa, 3 hours ago |
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| If you have heat exchangers between primary and secondary the two circuits are isolated so a leak in one wont affect the other. So whichever pressure gauge is dropping tells you which circuit to test... | ||
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RE: Pressure drop Primary circuit
By ohdearism, 3 hours ago |
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| Hello James. Thank you for your reply. My AWHP is a Samsung AE090JXYDEH , 2 x SWEP ID2-1414 heat exchangers and a Gledhill ABL250HP thermal store. 5 rads 2 towel rails and 90m2 underfloor heating. Th... | ||
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RE: Ecodan software update. Real or scam?
By SKD, 4 hours ago |
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| Hi - last week a Mitsubishi service tech installed a software update to our 11.2kW R32 unit. Apparently it alters the behaviour of the linear expansion valves (located above the accumulator), as a pr... | ||
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RE: Hitachi Yutaki SCombi Heat Pump - Thermal Off's
By JamesPa, 5 hours ago |
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| Im not sure what you are monitoring but defrost is normally done by switching off the fan reversing the direction of refrigerant flow so the heat pump is operating to cool the house thus using the hea... | ||
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RE: Pressure drop Primary circuit
By JamesPa, 5 hours ago |
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| If your ASHP has both a pressure sensor internally and isolation valves and you also have a pressure sensor one on the expansion vessel then you can isolate your ashp leave for 24-48 hours and see in ... | ||
Latest Posts
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RE: Pressure drop Primary circuit
PHE s can fail, I'm not sure what the most common failu...
By JamesPa , 6 minutes ago
-
RE: Ecodan consuming 100kwh per day in new build!!!
Any updates, OP (@anca1808)?
By rhh2348 , 31 minutes ago
-
RE: How many compressor starts per year
@editor @mikef For Comparison I have a Viessmann Vitoca...
By GC61 , 54 minutes ago
-
RE: Hitachi Yutaki SCombi Heat Pump - Thermal Off's
Hitachi is sadly not alone. The OAT sensor should be i...
By JamesPa , 2 hours ago
-
RE: Ecodan software update. Real or scam?
Hi - last week a Mitsubishi service tech installed a so...
By SKD , 4 hours ago
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RE: Are Homeowners Being Silenced Over Faulty Heat Pumps?
I would actually (and reluctantly) challenge the assert...
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Just a bit of an update... thanks to the information yo...
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RE: Hitachi Yutaki SCombi Heat Pump - Owners
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