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	RE: Testing new controls/monitoring for Midea Clone ASHP By cathodeRay, 15 minutes ago Forum Air Source Heat Pumps (ASHPs)
	That has always been my most likely explanation, in which case the Midea recorded OAT when the heat pump is running is a bit lower than the actual OAT the building sits in. I'm not so sure about this...
	RE: Mixergy Tank Failure By Mars, 15 minutes ago Forum Domestic Hot Water & Cylinders
	@bontwoody, I’ve made contact with @mixergy on your behalf and they have informed me they’re on the case and you’ll receive a reply soon, and they will also post a reply here.
	RE: delta T = 10 (Daikin) By Toodles, 27 minutes ago Forum Air Source Heat Pumps (ASHPs)
	@jamespa Ours is a Daikin EDLA03 8 kW and the Delta T = 5, as I mentioned before; the pump starts a cycle at ~28 l/m and later drops to ~15 l/m. The DT seems to stay pretty close to 5 at all times. We...
	External stat issue By cliffhanger, 29 minutes ago Forum Air Source Heat Pumps (ASHPs)
	Hi I'm back after running the ASHP for 7 months now with a different topic. see ( The pump runs fine with a constant temp of 20 degrees inside. It does cycle. I think we decided it's too big at 9kw....
	RE: Testing new controls/monitoring for Midea Clone ASHP By JamesPa, 32 minutes ago Forum Air Source Heat Pumps (ASHPs)
	@cathoderay, @old_scientist I think @old_scientist is onto the right idea in terms of explanation. Can you remind us where the sensor is on the Midea. As you say in your earlier post OAT is fundame...
	RE: Mixergy Tank Failure By Toodles, 33 minutes ago Forum Domestic Hot Water & Cylinders
	@bontwoody Fine! 😊 Toodles.
	RE: Testing new controls/monitoring for Midea Clone ASHP By cathodeRay, 44 minutes ago Forum Air Source Heat Pumps (ASHPs)
	Homely has been discussed a fair amount on the forum, and it seems to a bit of a Marmite product. The developers also have some rather odd business practises, which are of course their choices to make...
	RE: Testing new controls/monitoring for Midea Clone ASHP By Old_Scientist, 50 minutes ago Forum Air Source Heat Pumps (ASHPs)
	That does look like the OAT is dropping slightly due to the cooling effect from exhaust air. I see similar on my Samsung, who's OAT thermocouple is shielded in a black plastic sleeve and clipped in lo...
	RE: delta T = 10 (Daikin) By JamesPa, 1 hour ago Forum Air Source Heat Pumps (ASHPs)
	Crazy large and unexplained so far as I know, I had heard Daikin recommend this. 10% efficiency penalty compared to DT of 5 (because average emitter temp is 2.5C lower for any given flow temp) unless ...
	RE: Testing new controls/monitoring for Midea Clone ASHP By cathodeRay, 2 hours ago Forum Air Source Heat Pumps (ASHPs)
	Here's a four hour period from the same morning last November. Why does the set LWT change when it does? The OAT is lower when the heat pump is active (actual LWT is rising), is this simply the exhaus...
	RE: Testing new controls/monitoring for Midea Clone ASHP By GrahamF, 2 hours ago Forum Air Source Heat Pumps (ASHPs)
	Homely sounds like a good product, but I have reservations about their headline claim that the average home can save up to £444 per year. Their test at Salford University uses a base case of a fixed f...
	RE: Testing new controls/monitoring for Midea Clone ASHP By cathodeRay, 2 hours ago Forum Air Source Heat Pumps (ASHPs)
	I agree. The OAT is fundamental, it is both a major determinant of heat loss and, with weather compensation, the major determinant of what the heat pump does. I think we do need to know what we are ac...