Active cooling without individual room control

  • Erstellt am 2020-09-02 12:43:31

RoomService

2020-09-02 12:43:31
  • #1
Hello everyone,

we will probably be able to realize 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 only limited trust in our heating engineer, I would like to ask two or three questions here:

1. What should be specifically considered when designing the heat pump without [ERR]? Specifically, I would be interested to know where it makes the most sense to install an indoor sensor? At least my understanding was that we need one for controlling the heat pump. Should we consider any other points?

2. The heat pump can also actively cool. We would also like to use the cooling function in summer. What should be considered here? Does each heating circuit need a dew point monitor? And does the heat pump automatically switch to the cooling function if it measures that the room temperature is significantly above the set temperature?

And lastly: If we do go with [ERR]. Which models are recommended that also support the cooling function, but are not too expensive in case of doubt?

I hope the questions are understandable and not too "stupid."

Thanks in advance for your feedback.
 

nordanney

2020-09-02 13:22:38
  • #2
Not at all. Why would you, if the heating is correctly set. I have not dealt with the cooling function so far. In my opinion, it’s not really worth it - 1-2 degrees and cooler floor? Better to directly install an air conditioner.
 

Tolentino

2020-09-02 15:56:55
  • #3
My heating engineer had suggested on his own to install an ERR with a sensor in the main room to comply with the energy saving regulations. It can then either always be fully turned up or after the installation I take off the actuators and let the ERR die a beautiful death on the wall...
 

T_im_Norden

2020-09-02 16:45:55
  • #4
That must be controlled by the outside temperature, therefore only an external sensor. Everything else makes no sense.
 

Mycraft

2020-09-02 17:48:17
  • #5
1. You can do it, but it is not necessary.

2. What you have planned there is called passive cooling and has nothing to do with active cooling.
 

rdwlnts

2020-09-02 18:49:15
  • #6
Air-water heat pumps can only actively cool. Brine-water heat pumps can also cool passively. The Wolf CHA only actively. 2. Yes, cooling works analogously to heating but reversed. Measure the dew point everywhere or where the temperature is lowest or the humidity is highest, e.g. cold bedroom next to bathroom... ERR should preferably be deactivated.
 

Similar topics
18.02.2014Solar heat pump / what to watch for in the offer (single-family house, new construction, KFW70)22
19.09.2023Cooling via underfloor heating with brine heat pump45
21.10.2015Air-to-water heat pump - Nest Thermostat77
26.08.2015Cost Breakdown Heat Pump - Heat Pump with Ground Collectors23
19.05.2021Experiences with brine heat pump491
06.02.2017Air-to-air heat pump experiences?45
24.12.2017Correct temperature for a 300-liter hot water tank?17
06.06.2019Cooling in summer with air-to-water heat pump, underfloor heating and/or ventilation system?29
16.09.2018Experience with reversible operation of the heat pump10
01.02.2019Controlled residential ventilation with cooling: brine geothermal heat pump instead of air-to-water heat pump?30
22.11.2019Feedback on heat pump / offer requested!46
14.04.2020Air/Water Heat Pump Active Cooling15
09.10.2020Surcharge for cooling function of air-water heat pump?22
24.08.2021Cooling with heat pump via underfloor heating?117
29.06.2021Cooling concept new building - split air conditioning / air-to-water heat pump cooling function / combination25
06.08.2021Active and Passive Air-Water Heat Pump: Difference in Cooling18
08.10.2021Air-water heat pump combined with underfloor heating does not work properly65
25.07.2022Heat pump in connection with house air conditioning29
26.07.2023Air-to-air vs. air-to-water heat pump KFW55 house - cooling function important48
31.03.2024Which brine-water heat pump Viessmann, Niebe or Stiebel WPE-I 10 H12

Oben