ᐅ IDM iPump 2-8 Optimization / Adjustment

Created on: 12 Jan 2024 19:41
O
OBpunkt
Hello, we moved into our newly built house about six months ago, which was constructed as a KfW 50 house with a living area of approximately 145 sqm (1,560 sq ft) over two floors plus an attic (no basement). An IDM Aero/iPump 2-8 heat pump is installed, and there is underfloor heating everywhere.

Unfortunately, I don’t have details about the design of the underfloor heating, so I don’t know the pipe spacing or the target temperature used for sizing the heating system.

Our current problem is that not all rooms are warming up equally.

The setpoint temperature for the heating circuit is currently 23°C (73°F), with an eco mode temperature of 16°C (61°F). The heating curve is set at 0.44 (I increased it today to test the impact; it was previously set at 0.40). The parallel shift is set to 0°. The heating activation time is set to 15 minutes. All thermostats in the rooms to be heated are set between 3 and 6, but we still do not reach the target temperature. In the children’s room, the thermostat is currently set to 6, but the thermometer in the room showed a temperature of 16.1°C (61°F) during the day. How can this be?

I’m running out of ideas about what could be causing the rooms not to warm properly.

Also, the energy consumption seems much too high in my opinion. Our total electricity consumption since 1.7. has been around 3600 kWh. :o

Does anyone have any ideas or advice?
O
OBpunkt
13 Jan 2024 19:33
RotorMotor schrieb:

What are the temperatures like in the surrounding areas?
Is there any ventilation installed?

There is no ventilation installed.
To the right is the bedroom, which is rarely heated. To the left is the office, which is heated very irregularly. Currently, the heating in that room is off as well.
Do you think the adjacent rooms influence the temperature enough to prevent the children's room from getting properly warm?
R
RotorMotor
13 Jan 2024 20:37
There must be some reason.
What do you mean by "rather unheated"? What temperatures are we talking about?
You should aim to have all rooms around 21 degrees Celsius (70°F).
Some rooms might be about one degree warmer, like bathrooms, and bedrooms could be about one degree cooler.
But something like 16 degrees Celsius (61°F) shouldn’t occur in a (modern) house.