Ecodan Auto Adapt Questions
@boycey If I remember correctly, when the engineer fitted the replacement thermostat, the cable wasn't very long.
Yes, my thermostat is in the same position as yours; on the back, top right from the front.
As Mitsubishi are going to send an engineer, I don't think I should try repositioning at this stage.
Thinking about this a bit more, the excess reading is when it's sunny but the thermostat, being behind the pump, is not necessarily in the sun. It is for a while though when the sun is low at this time of year.
My original thought was that it was reflected heat from the house brickwork behind the pump. You can really feel the heat from the brickwork in the summer.
It's currently 39cm from the back wall so well within the 30cm that mitsubishi specify.
Install 13 April 2024 - 4 Bedroom Brick Detached - Heat Loss 9,281w, Design 45c at -2 - Ecodan 11.2kw R32 - 25L Buffer - 250L Telford Tempest HP DHW - All 16 radiators replaced - Auto Adapt - Octopus Fixed Rate
Posted by: @richard24738As Mitsubishi are going to send an engineer, I don't think I should try repositioning at this stage.
Thats good news
Posted by: @richard24738My original thought was that it was reflected heat from the house brickwork behind the pump. You can really feel the heat from the brickwork in the summer.
It's currently 39cm from the back wall so well within the 30cm that mitsubishi specify.
Hopefully your obs today will clarify whats going on so you can tell the Mitsi engineer!Â
The reflected heat from my south facing white wall has definitely not subsided 30cm from the wall. Â
Silly design, which obviously they know as they modified it for the R290
Â
4kW peak of solar PV since 2011; EV and a 1930s house which has been partially renovated to improve its efficiency. 7kW Vaillant heat pump.
@jamespa Extending the cable is not something I would like to attempt especially as Mitsi have agreed to send an engineer. Perhaps he will do it.
It's quite sunny now but cold. If the temperature rises, I'll try shading the unit.
Â
Install 13 April 2024 - 4 Bedroom Brick Detached - Heat Loss 9,281w, Design 45c at -2 - Ecodan 11.2kw R32 - 25L Buffer - 250L Telford Tempest HP DHW - All 16 radiators replaced - Auto Adapt - Octopus Fixed Rate
13:51 - Pump is "idle"
Temperature in the shade at the side of the house 14c.
Outdoor temperature reading of the heat pump 21c.
The top of the pump is shaded with an umbrella.
I have placed a normal thermometer on the back of the heat pump at the top and it reads 21c so that means the Mitsi outdoor thermostat is reading correctly.
Placing my thermostat near the bottom of the heat pump close to the cooler side of the house reads 18c.
Unfortunately, it looks like a sun and shade issue.
@jamespa: you mention a change on the R290. I can't find any documentation. Do they now do wifi remote or is it simply a positional change?
Â
Install 13 April 2024 - 4 Bedroom Brick Detached - Heat Loss 9,281w, Design 45c at -2 - Ecodan 11.2kw R32 - 25L Buffer - 250L Telford Tempest HP DHW - All 16 radiators replaced - Auto Adapt - Octopus Fixed Rate
Posted by: @richard24738@jamespa: you mention a change on the R290. I can't find any documentation. Do they now do wifi remote or is it simply a positional change?
It wasnt me that mentioned this, was someone else, I was only repeating what appeared to be a very plausible statement.
Â
Posted by: @richard24738Unfortunately, it looks like a sun and shade issue.
Yup. Well at least you can tell the Mitsubishi engineer what problem he has to fix. He may of course simply turn up with a sensor on a longer wire.
4kW peak of solar PV since 2011; EV and a 1930s house which has been partially renovated to improve its efficiency. 7kW Vaillant heat pump.
- 21 Forums
- 1,983 Topics
- 43.2 K Posts
- 22 Online
- 2,309 Members
Join Us!
Heat Pump Dramas?
Thinking about installing a heat pump but unsure where to start? Already have one but it’s not performing as expected? Or are you locked in a frustrating dispute with an installer or manufacturer? We’re here to help.
✅ Pre-Installation Planning
✅ Post-Installation Troubleshooting
✅ Performance Optimisation
✅ Complaint Support (Manufacturer & Installer)
Latest Posts
-
RE: Smart TRV experiences (ideally integrating with Midea heat pump)
Yes, I'd read that and already knew that LSVs exhibit a...
By madbilly , 11 minutes ago
-
In our case the pipe run for the heat pump is short and...
By madbilly , 21 minutes ago
-
Plug and play solar. Thoughts?
What do you think of these plug-and-play Balcony Solar...
By Lucia , 3 hours ago
-
@toodles no, unfortunately we don’t have access to the ...
By Simon and Zoe , 3 hours ago
-
RE: The EPC Dilemma: How Current Ratings Fail Heat Pumps
Hi, im not an expert on EPCs but today got a D for my 1...
By rodwebster , 4 hours ago
-
@sandman1600 What I mean is, your UFH power is 79wm2...
By davidnolan22 , 4 hours ago
-
RE: Vaillant AroTherm Plus 7kW
Thank you James for such a complete write up. We also h...
By Judith , 5 hours ago
-
RE: Ecodan Auto Adapt Questions
It wasnt me that mentioned this, was someone else, I wa...
By JamesPa , 5 hours ago
-
RE: Renewables & Heat Pumps in the News
In a move that potentially promises to benefit homeowne...
By Mars , 5 hours ago
-
RE: Vaillant water pressure gauge vs Analogue gauge
I have the same, so equally interested in the answer. ...
By JamesPa , 5 hours ago
-
RE: Volumisers in Heat Pump Systems: Does Placement Matter?
Possibly 40c vs 30c flow has something to do with it…. ...
By SUNandAIR , 7 hours ago
-
RE: Thinking of ripping our my IVT Greenline HT Plus C model and replacing with a gas boiler.
Somebody has to pay for their ignorance! In fairness ...
By JamesPa , 10 hours ago
-
RE: Nibe F2040 ASHP PCB failure
@tarquinadams and @mars hello. We are facing a similar ...
By Delta , 14 hours ago
-
Thats simply not true (to any material extent), which i...
By JamesPa , 24 hours ago
-
RE: Confused about Samsung Gen6 Hot Water Controller
@derekdeleon OK right now the water temp is 53.5 and I ...
By ntruby , 24 hours ago
-
Database of heat pump performance data?
Hi all, I really like Heatpunk, especially the way th...
By madbilly , 1 day ago
-
RE: Air source heat pump roll call
Good idea 🙂 Manufacturer: MideaModel:10kW R32 Monob...
By madbilly , 1 day ago
-
RE: Are MCS are finally improving (some of) their guidelines?
Is this going to be useful guys? Just trying to move ...
By Judith , 1 day ago
-
RE: What is the best approach for primaries in heat pump installations?
Don't forget there is no such thing as zero loss insula...
By Judith , 1 day ago
-
RE: Battery storage to run Heat Pump.
@transparent Flexibility Services are different to w...
By Lucia , 1 day ago
Latest Topics
-
Plug and play solar. Thoughts?
By Lucia 3 hours ago
-
By JamesPa 6 hours ago
-
Vaillant water pressure gauge vs Analogue gauge
By jeegnesh 7 hours ago
-
Database of heat pump performance data?
By madbilly 1 day ago
-
By madbilly 1 day ago
-
Confused about Samsung Gen6 Hot Water Controller
By ntruby 2 days ago
-
help with new bathroom and towel radiator
By AdamK 2 days ago
-
Grant Aerona fine tuning advice needed
By Stopbar 3 days ago