ᐅ How to Properly Adjust an Air-to-Water Heat Pump with Underfloor Heating

Created on: 15 Dec 2019 16:52
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M4rvin
Hello,
I have been searching around and reading the manual for my Elco air-to-water heat pump, but I haven’t fully figured it out yet...

I have a manifold on the ground floor and first floor; the recommendation is to fully open everything, set all thermostats to maximum, and then adjust the heating curve on the heat pump low enough to roughly achieve the desired temperature.
Is that more or less correct?

At the moment, every thermostat (except bathroom/bedroom) is set to 20°C (68°F), and the temperature in each room is about 20.9°C (70°F) (bathroom slightly warmer, bedroom slightly cooler).
However, I’m surprised by the high electricity consumption — it has been 800 kWh in just 2 months.

135 m² (1455 sq ft) living area
Elco Split 7 kW
Circulation pump not yet connected

Thanks in advance
M4rvin
M4rvin20 Dec 2019 19:05
No idea what this is... I was hoping for more flow when you open this. Unfortunately, I couldn't find a fuse, so I'll set it to 0 for now! Thanks!
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guckuck2
20 Dec 2019 19:10
It looks like a differential pressure bypass valve.
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Daniel-Sp
20 Dec 2019 19:11
If it is a bypass valve, it opens earlier when you turn it further. Try closing it gradually and observe the flow at the tubes. Maybe you can increase the flow a bit more. Remember the current setting so you can reset it anytime.
I was able to increase the flow from 1200 liters per hour to over 1800 liters per hour by closing the bypass valve on my system...
seat8820 Dec 2019 20:49
If you had simply called the local heating technician, they would have fixed the problem in an hour for 44.72 euros. That would have saved you five days in a row of adjusting, resetting, and testing....
tomtom7920 Dec 2019 20:58
seat88 schrieb:

If you had simply called the local heating technician, they could have fixed the problem in one hour for 44.72 euros. That would have saved you five days of adjusting, readjusting, and testing...
Haha, good one, no way.
M4rvin20 Dec 2019 21:56
I already called, my appointment is on January 10th.
But I think if you roughly set it in the right direction beforehand, it will be easier for the technician!

By closing the valve, do you mean adjusting it to lower the pressure?