Last seen: Nov 9, 2025
I' d like to see a graph of that. It doesn't make sense to me, unless he means that at low temps, the pump runs at constant speed.
I am really surprised that the IAT is steady, whereas LWT is fluctuating a lot. How can this be ?
Is the WC "tweaked" ?. Because that would explain this behavior.
By what rule would flow be modulated ? Is it not the primary circuit flow ?
I am not sure the chart is accurate. Because how is it that T1S changes when OAT is constant (just before 21.00) ?
I think the flow rate is meant to be constant. In my machine is set at 0.36 m3/h. But I am not sure of this. On the other hand, why shouldn't it be ? ...
This is to be expected, isn't it?
I don't think I am. The order is: 1. The system orders a defrost cycle. 2. The OAT sensor sends erroneous measurement (warmer). 3. The set LWT (...
Ha, ha true, but I am not saying it isn't any good, I am saying it is not that good. A simple argument is that it is open loop. And to answer your "an...
@benson T1S is actually the LWT defined by the WC. However, I wouldn't describe the behavior as "overshooting", but rather "oscillating" around the se...
The refresh time of climate-related curves in heating mode can be changed but not less than 0.5 hrs. This explains the LWT behavior. Further, since ...
@pash44pump Referring to the problem of rooms with different heating demands, I would use a recently available option which is thermostatic valves wit...
Latest Posts
-
RE: Grant Aerona Short Cycling
@grantmethestrength that looks interesting, can you sha...
By damonc , 3 minutes ago
-
RE: What a Bad Heat Pump Installation Looks Like
I am curious about what was MCS' role in this process? ...
By Batpred , 7 hours ago
-
RE: Aira Heat Pump: Stylish Scandinavian Heating
Has anyone tried using the Smart Tariff Control on the ...
By ChandyKris , 10 hours ago
-
RE: Experience with Mitsu Par 50/60 Wireless Controller
The 27°C request doesn't boost the weather compensation...
By Sheriff Fatman , 14 hours ago
-
RE: Getting the best out of a heat pump - is Homely a possible answer?
Oh and it was installed by Stevie Wonder!
By Grantmethestrength , 16 hours ago
-
There seems to be plenty of evidence to support this. ...
By JamesPa , 23 hours ago
-
RE: One Year Review: Grant 13kW ASHP - A Catalogue of Errors
@solenoid it sounds like you are making progress. No n...
By JamesPa , 24 hours ago
-
RE: LiFePO4 lithium battery fires and explosions
@iaack — thanks, a useful video. They do make it clear...
By cathodeRay , 1 day ago
-
RE: How good is the app support for your heat pump?
I think you are right about the ebus stick. It's cert...
By JamesPa , 2 days ago
-
RE: My DIY Heat Pump installation
@majordennisbloodnok Element-ary my Dear Major.
By Toodles , 2 days ago
-
RE: Replacing my 18 month old Hitachi Yutaki ASHP
Yes, you can work out a lot from a plot of FT. Interes...
By JamesPa , 2 days ago
-
Welcome to the forums @isaac. What you’re describing is...
By Mars , 2 days ago
-
Win an Eve Smart Home Bundle worth over £350!
Win an Eve Smart Home Bundle worth over £350! ...
By Mars , 2 days ago
-
RE: Is your heat pump insured?
I chose Tesco in the end. Unambiguously cover HP, PV an...
By Davesoa , 2 days ago
-
RE: Help me keep the faith with my air source heat pump installation
@adamk You can get an idea of if your flow and return...
By SimonF , 2 days ago
-
This Solis inverter being rated 8kw and (I expect, as I...
By Batpred , 2 days ago
-
RE: A2A vs A2W: Which Heat Pump Would You Pick?
I have one fancoil in an otherwise all radiator system....
By JamesPa , 2 days ago
-
RE: Electricity price predictions
That's understandable...but I was referring to our 'oth...
By Transparent , 3 days ago
