Another 'Cool Energy' heatpumps thread

[HughF]

my suspicion is that I’ll need to spend a day or so playing with the PID settings. But for now, another fan coil to get on the wall.

[dpmiller]

remind us what "stop temp differential" you're set to- increasing that a degree might well save ploughing through the PID stuff too much

[HughF]

40 minutes ago, dpmiller said:

remind us what "stop temp differential" you're set to- increasing that a degree might well save ploughing through the PID stuff too much

I’ve bumped it to 5 degrees, it was at 1…. And it’s been running for the last 20 mins without stopping 👍 It’s ramping up and down, but it hasn’t stopped.

 

I also bumped the weather comp up 1 degree as it was a little low at the current OAT.

 

kP is 5c

kI is 100 secs (iirc)

kD is 0

Edited November 26, 2023 by HughF

[HughF]

Still going, using 930w from the mains - finally….

[JohnMo]

5 hours ago, HughF said:

Still going, using 930w from the mains - finally….

Sounds good

[HughF]

57 minutes ago, JohnMo said:

Sounds good

Yeah, been working well today, after some hard work this morning recovering from being off from 23:30 till 05:30. Seems to be ticking along quite happily at the lowest modulation, until it warmed up this afternoon.