Last seen: Sep 19, 2024
@john-connett What is the problem with the old controller?
@john-connett Hi John. It would appear that there are several possible solutions. You could go down the digital route using something like a digit...
@iantelescope Do you have Glycol in the primary circuit?
@john-connett The software part is simple, but how do you output actual resistance? I assume that both the old and new controllers are passing a s...
@john-connett It may be possible to build a simple electronic circuit that could emulate a NTC 20k thermister from a PT 1000 Resistance Temperature ...
@iantelescope For most efficient heat transfer, the primary inlet should be at the top so that the water is cooling as in flows down to the exit at ...
@iantelescope A photo would be useful.
Probably the easiest solution would be to see if you can find a NTC 20k sensor that is housed in a probe with the same physical dimensions as the PT 1...
As you state, it is not so much orientation as flow direction. If the PHE is mounted vertically, the flow from the heat pump should enter at the top...
Our hot water cylinder is at present at a temperature of 69.3C, heated solely from solar PV generation via our Immersun power diverter. Obviously th...
The fact that the app is greyed out could be because the controller is not receiving data from the missing item. The Outside Air Temperature (OAT) sen...
Is the missing device a thermostat or a temperature sensor?
Latest Posts
-
RE: Help me keep the faith with my air source heat pump installation
@adamk I have a Grant Aerona3 so it is a physical jumpe...
By Grantmethestrength , 14 minutes ago
-
@jamespa thanks, I appreciate the offer. For n...
By DREI , 9 hours ago
-
RE: Is Your Broadband Router the Weak Link in Your High-Tech Home?
@transparent what I don't understand about these "rogue...
By Scalextrix , 12 hours ago
-
RE: Who’s Caved and Switched the Heating On Already?
I have 3 women in the house, 2 little ones, so my heati...
By DREI , 14 hours ago
-
@damon thanks. I will do as you suggest. Hopefully I wi...
By bontwoody , 15 hours ago
-
RE: Is a Valliant Inline 6kW heater a BUS buster?
Much of that is true in principle, but its not likely t...
By JamesPa , 1 day ago
-
RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
@dgclimatecontrol I attach the responses from 2 potenti...
By pash44pump , 2 days ago
-
RE: Midea ASHP – how to set weather compensation
Mostly, I think, but with some caveats. I set the TI...
By cathodeRay , 2 days ago
-
RE: Buffers, hot water and cooling
@dgclimatecontrol thanks, that's helpful.
By JamesPa , 2 days ago
-
RE: Failing heat pump system - seeking thoughts on a rebuild
I realise im overdue an update on my situation. first...
By Cleardene-ashp , 3 days ago
-
RE: Replacing Worcester oil boiler with an ASHP
@toodles thanks. I was told by the engineer that this h...
By JulianC , 3 days ago
-
RE: What crazy nonsense are inverter limits and why are they imposed?
A week later, I'm finally picking up this comment... ...
By Transparent , 3 days ago
-
RE: COP is not the only measure of efficiency
We keep all our TRVs fully open using the whole house a...
By Old_Scientist , 3 days ago
-
RE: Havenwise App Help & Forum Support – Get the Most from Your Heat Pump
I am pleased to say at 4pm today we have added another ...
By ASHP-BOBBA , 4 days ago
-
RE: Renewables & Heat Pumps in the News
To unpack this a little.... 1) how many of us in this...
By Lucia , 4 days ago
-
RE: Vaillant aroTherm Plus 10kW thoughts?
@realevil the fans and fan speed / coil size (height, w...
By ASHP-BOBBA , 4 days ago
-
RE: Mitsubishi Ecodan 11kw Defrosting Issue.
@morgan this can just be done by your sepecilist when t...
By ASHP-BOBBA , 4 days ago
-
RE: Anyone still weathering it out with Agile?
@toodles I guess it all comes down to import averages. ...
By Tim441 , 5 days ago
-
RE: 300 Liter Tank - Do I have to heat it all?
The size of DHW tank affects the anti-legionella cycle....
By Transparent , 5 days ago
