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Last seen: Sep 19, 2024
I assume that you have received no error messages indicating some sort of problem. I believe that PWM controlled water pumps revert to full speed if...
It is things like this which cause me to avoid buying Chinese manufactured equipment whenever possible.
Look at section 4.3 Dip switch functions on page B-57 of the attached document.
The WC settings need to be adjusted to match the heat loss of your home. Do you have a copy of the heat loss calculations?
While you may need a LWT of 55C at Outside Air Temperatures (OAT) of zero and below, you should not require 55C when the OAT is 5C to 15C. The idea ...
The fact that the heat pump can achieve high temperatures does not mean it has to be operated at high temperatures, which can reduce it efficiency qui...
@crimson I'm afraid that you are likely to be 'chasing your tail' if you have zone valves opening and closing under different conditions. When heati...
@haggistrap Are you operating your heat pump in Weather Compensation (WC) mode and if so what are the settings? Why are you operating your heat pu...
I believe that the temperature readings indicate that your system is quite well balanced, in that the flowrate into the LLH is slightly greater than t...
@pingu807 I would suggest that you check the setting of DIP Switch SW1-3 which identifies the presence or absence of a DHW cylinder. If the setting ...
The important factor is the temperature of the water entering the radiators, which I doubt was at 42C. The calculated heat loss for living room 2 is...
@crimson The quantity of thermal energy that can be emitted by a radiator is dependent upon its size (emitting area), the MWT and the IAT. As the IA...
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Degrees of Separation
Latest Posts
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RE: Who's your electricity provider and what's your tariff?
@old_scientist Have you ran the numbers as to which ...
By Papahuhu , 2 hours ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
D'oh - of course. I shouldn't post before my brain is f...
By Old_Scientist , 4 hours ago
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RE: Questions about A2A for heating as well as cooling
@rob-of-york I would concur with the underfloor insulat...
By Toodles , 6 hours ago
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RE: New Vaillant Arotherm controls link to existing thermostats ; wired vs wireless
Nothing attached! I have rads but UFH makes the case ...
By JamesPa , 6 hours ago
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RE: Cooling with air to water heat pumps
Passive cooling should always be the first call. Keep ...
By JamesPa , 7 hours ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
@rob-of-york Thank you, I’m thinking along these same l...
By Toodles , 23 hours ago
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@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 23 hours ago
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@dave, I think @jamespa has probably identified the mos...
By Mars , 2 days ago
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RE: Plug and play solar. Thoughts?
My thought is simple. Bring it on and bring on plug in...
By JamesPa , 2 days ago
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RE: Heat Geek mini store vs pump size
Yes I agree, that’s why Heat Geek have most likely sele...
By Tomtheheatingengineer , 3 days ago
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@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 3 days ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
@majordennisbloodnok @tomtheheatingengineer For my ...
By JamesPa , 3 days ago
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RE: Is the "divide by 2900" rule still valid?
Really flow rate is a pipework limitation not a water p...
By JamesPa , 4 days ago
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