Hello!
I'll start.
Heated area 200m2 (2,153 sq ft)
KfW 55 standard
Mechanical ventilation with heat recovery
Current outdoor temperature 6°C (43°F)
Heating energy consumption including hot water 35 kWh
Electricity consumption 9 kWh
COP 3.88
I'll start.
Heated area 200m2 (2,153 sq ft)
KfW 55 standard
Mechanical ventilation with heat recovery
Current outdoor temperature 6°C (43°F)
Heating energy consumption including hot water 35 kWh
Electricity consumption 9 kWh
COP 3.88
KingJulien2 Nov 2021 12:58Does hysteresis now apply upwards for you as well? So, does it only shut off at 58°C (136°F)? That would be an expensive daily operation with an air-to-water heat pump.
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Alessandro2 Nov 2021 13:48No, that wouldn’t make sense.
After consulting with the heating engineer, I have now set the legionella protection to activate once a week. This heats the domestic hot water to 60°C (140°F).
After consulting with the heating engineer, I have now set the legionella protection to activate once a week. This heats the domestic hot water to 60°C (140°F).
Is this the often-criticized overflow valve? At least the hydraulic line goes directly from the supply to the buffer storage tank on the return side.
It was set to 150 mbar (6 inHg) – I increased it to 250 mbar (10 inHg) and already noticed more flow reaching the upper floor. Should I continue adjusting?
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Deliverer2 Nov 2021 21:44If all (or at least most) heating circuits/radiators are on and will definitely stay that way: go ahead and close them.
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RotorMotor2 Nov 2021 21:51150 mbar (6 inHg) seems very low.
The air-to-water heat pump pump produces 640 mbar (9.3 psi), right?!
Can you turn it off completely, or is 300 mbar (4.4 psi) the maximum?
By the way, did you get an additional pump?
The air-to-water heat pump pump produces 640 mbar (9.3 psi), right?!
Can you turn it off completely, or is 300 mbar (4.4 psi) the maximum?
By the way, did you get an additional pump?
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