Vaillant system tweaking.
Good Afternoon All,
As we are now entering into the cooler part of the year, I have started to investigate the settings on our heating further.
We have the following.
ASHP - VWL 75/6 A 230V S2. Sensocomfort VRC 720F downstairs, Sensocomfort VRC 92f upstairs. VR71 with gateway and VWZ AI VWL MB2 controller for the heat pump. Outside sensors also there for weather comp
Downstairs is Zone 1 - UFH with 4 zones. All controllers feeding into a microcenter EZC-12-4. Heat curve 0.7
Upstairs is Zone 2 - Rads. Heatcurve 1.2
It all appears to be working. Both upstairs and downstairs are in manual mode. Upstairs is temp controlled from the VRC92F, down stairs is being controlled by the individual room sensors, the VRC 720F is still there but doesn't directly control the heating downstairs.
Adaptive heat curve is ? Activated. Is this the best setup for what we have?
With the downstairs still set to heating rather than fixed temp, where does the system take its internal temp reading from, the VRC720F???
Basically, are we running the system as efficiently as we can? I know we are technically in the settling in period, and adjustments are ongoing, but does it look like we are doing everything correctly?
Thanks for all your assistance and knowledge, this site is brilliant.
Many thanks
Drew
assuming everything is vaillant, (you have used obscure nomenclature) the the rads should be compensated not fixed.
I suspect you are in installer configuration?
I can’t remember what the options are, but the zone needs to be assigned and activated obviously.
weather compensation with indooor modulation is optimum.. I would not select extended room control with a heat pump though
The only way to use heat gerenators optimally is with weather compensation, and constant running pumps..
turn the vaillant controls up and down, and but don’t turn off
Professional installer
Hi Alec,
Thanks for the reply. Sorry, everything is Vaillant apart from the UFH central unit, and the room stats down stairs.
Slowly getting there. Thanks everyone.
Drew
Posted by: @drew-paGood Afternoon All,
As we are now entering into the cooler part of the year, I have started to investigate the settings on our heating further.
We have the following.
ASHP - VWL 75/6 A 230V S2. Sensocomfort VRC 720F downstairs, Sensocomfort VRC 92f upstairs. VR71 with gateway and VWZ AI VWL MB2 controller for the heat pump. Outside sensors also there for weather comp
Downstairs is Zone 1 - UFH with 4 zones. All controllers feeding into a microcenter EZC-12-4. Heat curve 0.7
Upstairs is Zone 2 - Rads. Heatcurve 1.2
It all appears to be working. Both upstairs and downstairs are in manual mode. Upstairs is temp controlled from the VRC92F, down stairs is being controlled by the individual room sensors, the VRC 720F is still there but doesn't directly control the heating downstairs.
Adaptive heat curve is ? Activated. Is this the best setup for what we have?
With the downstairs still set to heating rather than fixed temp, where does the system take its internal temp reading from, the VRC720F???
Basically, are we running the system as efficiently as we can? I know we are technically in the settling in period, and adjustments are ongoing, but does it look like we are doing everything correctly?
Thanks for all your assistance and knowledge, this site is brilliant.
Many thanks
Drew
Hi, I've got a Vaillant so interested in responses to this.
One question I have is - can you have different heatcurves for different Zones? Wouldn't that confuse the ASHP or have I got that wrong (still learning). I've got two zones - but advice I've seen elsewhere is to just treat the house as one big zone.
This video may help you too
Andy
Hi Andy,
I know my controller shows two different curves. As I mention above we have UFH downstairs and Rads upstairs. Couldn't tell you how it adjusts to the situation where both zones are running though.
@andygo the heat pump or boiler works to the highest temperature..I have a vaillant install with 8 different curves!
A vaillant controlled electronic mixing valve lowers the temperature of the lower zones..
Professional installer
Hello again all,
So our system had been running for a few weeks as described above. The other morning I heard the unit running for a very long time. Out of curiosity I got up and checked the controller. I found the heat curve had adjusted itself for the rads upstairs to 0.5 from 1.2. Is this typical? I would have expected it to stay at above 1.0 all the time.
had anyone seen this before?
many thanks,
Drew
yes perfectly correct.. you really need to concentrate on the room temperature not what the pump does, you will find it disconcerting!
trchnicall the floating curve just reflects the characteristics of the building!
Professional installer
-
Vaillant aroTHERM plus not level or flat - what base is best under an external unit?
12 hours ago
-
Two possible heat pump routes - how to evaluate them?
5 days ago
-
Retrofitting UFH with a heat pump already installed
4 months ago
-
Volumiser placement in Vaillant Arotherm + system?
4 months ago
-
Vaillant Arotherm Plus PCB Failure
5 months ago
- 25 Forums
- 1,513 Topics
- 31.8 K Posts
- 18 Online
- 1,283 Members
Join Us!
Latest Posts
-
RE: Additional Battery v Wind Turbine v Ripple
I should add, being an investment, the value of your in...
By Old_Scientist , 3 hours ago
-
RE: Ecodan - flow rates, sensors, settings
Achieving an accurate flow measurement is probably the ...
By Derek M , 7 hours ago
-
RE: Ecodan ASHP - How to optimise my set up?
Again, thank you for another thorough post, @derek-m - ...
By rhh2348 , 9 hours ago
-
RE: Delivering a smart and secure electricity system: government consultation
@Transparent.Now that I am represented by a new MP I th...
By IanMK13 , 11 hours ago
-
RE: Vaillant aroTHERM plus not level or flat - what base is best under an external unit?
Similar thread here
By Johnmo , 12 hours ago
-
RE: VDI 2035 heating water specification
Been looking and it seems a good little project. Ever...
By Johnmo , 1 day ago
-
RE: Do I accept an ASHP and Solar Panel retrofit under the HUG 2 scheme?
Will do. I'm currently waiting for another survey / vis...
By dssr , 2 days ago
-
The company that did the borehole were expecting us to ...
By Johnmo , 2 days ago
-
-
RE: The Misquote That Ruined the Heating Industry
@abernyte manufacturer training is pretty average. They...
By Mars , 2 days ago
-
-
RE: ECO4 Scheme and EPC ratings
@mellow Thanks. Given there is a scheme requirement to ...
By Old_Scientist , 3 days ago
-
RE: Do I just go with the lowest quote for my heat pump?
@jancold To me its a no-brainer then, a max 40C flow te...
By bontwoody , 3 days ago
-
-
RE: Heat Pump Books Beginners – Bodge Buster & From Zero To Heat Pump Hero
@editor Presumably he had some good weather Compensatio...
By Toodles , 4 days ago
-
RE: New Vaillant 7kW aroTherm ASHP or oil boiler dilemma/decision??
Storage capacity really is dependent on storage tempera...
By Johnmo , 4 days ago
-
RE: HP Cycling, Expected or Undesirable
Just a little update. I ordered a longer shielded twin ...
By bontwoody , 4 days ago
-
RE: Domestic hot water timer doing crazy things on my Grant Aerona3 10kW air source heat pump
Thanks @allyfish for the pics and info. Spoke to the in...
By Mellow , 4 days ago
-
RE: Aira Heat Pump: Stylish Scandinavian Heating
It's been a busy day for calls and emails from Aira. I ...
By MikeH , 4 days ago
-
RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
Hmm. A bit of a nuanced answer, methinks. As I've alr...
By Majordennisbloodnok , 4 days ago
Latest Topics
-
Ecodan - flow rates, sensors, settings
By rhh2348 10 hours ago
-
Replacing mains water with well water
By Johnmo 2 days ago
-
Additional Battery v Wind Turbine v Ripple
By bontwoody 2 days ago
-
By jamespipe 3 days ago
-
VDI 2035 heating water specification
By Johnmo 3 days ago
-
Do I just go with the lowest quote for my heat pump?
By Jancold 5 days ago
-
The Misquote That Ruined the Heating Industry
By Alec Morrow 5 days ago
-
Battery Storage Wiring Gauge Question
By Puff 6 days ago
Members Online
No online members at the moment