Hello everyone,
We will most likely be able to build our new single-family house without individual room controls. Fortunately, we were able to discuss this with our construction company.
Specifically, a CHA Monoblock air-to-water heat pump will be used. Since I have limited trust in our heating technician, I would like to ask two or three questions here:
1. What exactly should be considered when designing the heat pump system without individual room controls? Specifically, I am interested in where it makes the most sense to install an indoor sensor. My understanding is that we need one for controlling the heat pump. Are there other points we should be aware of?
2. The heat pump can also actively cool. We would like to use the cooling function in summer as well. What should be taken into account here? Does each heating circuit require a condensation sensor? And does the heat pump automatically switch to cooling when it detects that the room temperature is significantly above the set temperature?
Finally, if we do decide to include individual room controls, which models would you recommend that support the cooling function but do not cost too much if possible?
I hope the questions are clear and not too "basic."
Thanks in advance for your feedback.
We will most likely be able to build our new single-family house without individual room controls. Fortunately, we were able to discuss this with our construction company.
Specifically, a CHA Monoblock air-to-water heat pump will be used. Since I have limited trust in our heating technician, I would like to ask two or three questions here:
1. What exactly should be considered when designing the heat pump system without individual room controls? Specifically, I am interested in where it makes the most sense to install an indoor sensor. My understanding is that we need one for controlling the heat pump. Are there other points we should be aware of?
2. The heat pump can also actively cool. We would like to use the cooling function in summer as well. What should be taken into account here? Does each heating circuit require a condensation sensor? And does the heat pump automatically switch to cooling when it detects that the room temperature is significantly above the set temperature?
Finally, if we do decide to include individual room controls, which models would you recommend that support the cooling function but do not cost too much if possible?
I hope the questions are clear and not too "basic."
Thanks in advance for your feedback.
Tolentino schrieb:
My heating technician suggested installing a thermostatic bypass valve (ERR) with a sensor in the main living area to comply with energy saving regulations. It can either be set to fully open at all times, or after installation, I can remove the actuators and let the bypass valve remain on the wall unused...Isn't it actually the other way around, that you can do without the thermostatic bypass valve in the control room? Sometimes an exemption is possible, but it didn’t work for me either.R
RoomService3 Sep 2020 21:02Now I feel even more confused than before. We have an air-to-water heat pump, so only active cooling should be possible. Mechanical ventilation with heat recovery (MVHR) must be installed in every room according to the energy saving ordinance, unless the room is smaller than 6 m² (65 ft²).
And assuming we have a special permit, I was wondering what instructions we should give the heating technician to ensure proper heating with the heat pump in winter and cooling in summer.
And assuming we have a special permit, I was wondering what instructions we should give the heating technician to ensure proper heating with the heat pump in winter and cooling in summer.
O
Octrineddy4 Sep 2020 11:04RoomService schrieb:
Now I feel even more confused than before. We have an air-to-water heat pump, so only active cooling should be possible. [...] Isn't it more of a passive cooling when you circulate cold water through the underfloor heating system?
Octrineddy schrieb:
Isn’t it more like passive cooling when you run cold water through the underfloor heating?No, an air-to-water heat pump has to actively cool the water. Passive cooling is only possible with a ground source heat pump, where the heating water is cooled by the cooler groundwater.T
T_im_Norden4 Sep 2020 11:37RoomService schrieb:
And assuming we have an exemption permit, I was wondering what advice we should give the heating technician to ensure proper heating with the heat pump in winter and cooling in summer. Supply temperature 30°C (86°F),
room-by-room heating load calculation,
adjusted pipe spacing,
as much heating surface as possible in the bathroom, possibly wall heating in the bathroom.
Proper supply lines to the manifolds.
Hydraulic balancing,
decommission the electric heating.
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