Hello everyone,
next week the heating technician will come for the hydraulic balancing and instruction on the heating system (Panasonic Aquarea Mono heat pump and underfloor heating with ERR, 150sqm (1,615 sqft)). Since we have had quite a few difficulties with the company and are concerned that only the bare minimum, if anything, will be done, I would be interested in your advice.
Hydraulic balancing
Instruction
We have only ever had a gas heating system before, so we are a bit unsure what we actually need to know.
Thanks :-)
next week the heating technician will come for the hydraulic balancing and instruction on the heating system (Panasonic Aquarea Mono heat pump and underfloor heating with ERR, 150sqm (1,615 sqft)). Since we have had quite a few difficulties with the company and are concerned that only the bare minimum, if anything, will be done, I would be interested in your advice.
Hydraulic balancing
- How long does this usually take?
- How does the process typically work?
- Is there any way I can tell if the technician is actually doing something or just making a few adjustments “for form’s sake”?
Instruction
- What questions should definitely be clarified?
- Here are some I thought of:
- Where and when to refill water
- How to adjust or shift the heating curve
- Turning the electric heating element on/off
- Possibly changing the flow rate
We have only ever had a gas heating system before, so we are a bit unsure what we actually need to know.
Thanks :-)
boxandroof schrieb:
Next winter: set all thermostats permanently to max/fully open. Most actuators consume power when "open" and are without power when "closed." If such actuators are installed, it is more practical to remove the actuators from the valves and set the ERROR to zero/star. This way, the actuators are closed and therefore without power.
If actuators are installed that are without power in the open state, then setting them to max is also fine.
B
boxandroof18 Mar 2019 08:43KingSong schrieb:
However, this will completely undermine your temperature difference, and a temperature difference between 4-5K would be optimal. No. His Panasonic controls the flow rate itself depending on the set temperature difference, but requires less pump power at low resistance. A high flow rate is important for defrosting.
In any case, this applies to the 5kW model. To my knowledge, his 9kW pump uses the same software.
My point was that during balancing, he should not reduce all circuits but rather do the opposite.
The optimal temperature difference depends on the refrigerant; 2K is not a problem here and will also occur during transitional periods. Unfortunately, the original poster installed the 9kW heat pump. Without checking, I assume this one cannot modulate down to very low output as well as the smaller 5kW model, which probably would have been sufficient here.
B
boxandroof18 Mar 2019 08:47Musketier schrieb:
Most actuators consume power when "open" and are without power when "closed." If such actuators are installed, it makes more sense to remove the actuators from the valves and set the ERR to zero/star. This way, the actuators are closed and thus without power.
If actuators are installed that are without power in the open position, then setting it to max also works. That's correct. That's why it's better to remove them. I was only referring to the hydraulics here. With an active ERR, balancing becomes impossible, the flow temperature may need to be increased, and the flow rate decreases (pump current, possibly errors during defrosting).
Thank you for your answers and the many suggestions. Our actuators are "closed" without power, so hopefully next winter we can go with the "remove them" option as described by Musketier.
Yes, unfortunately, we have the 9kW unit in the H version.
Fortunately, we do not have a buffer tank.
There might be something noteworthy to report after the heating specialist has been here at the end of the week.
Yes, unfortunately, we have the 9kW unit in the H version.
Fortunately, we do not have a buffer tank.
There might be something noteworthy to report after the heating specialist has been here at the end of the week.
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