Last seen: Sep 19, 2024
@cathoderay In my opinion 'cycling' is not the same as 'setback'. A heat pump cycles to prevent the IAT from increasing too high, whereas a setback ...
Hi Ray, I actually didn't state that using setback would be a mug's game. Please don't miss quote me. Any reduction in IAT will reduce heat loss, ...
Based upon the data table for an 8.5kW Ecodan, running at maximum output at a LWT of 45C, it should require approximately 2.7kW of electrical energy. ...
Can you provide closeup photo's of your zone 1 heatmiser in the on and off condition. You need to educate your guest about heat pumps.
I would suggest that you ask your installer to rectify the problem. Once the on - off problem is resolved, you may wish to consider operating your sys...
Looking at the data tables for a 8.5kW Ecodan, your heat pump was probably running at full output and developing something in the order of 10kW of the...
@jamespa Hi James, You are indeed correct, the WC 'curve' is a straight line calculation based upon the values in cells I5 and I6 and K5 and K6. ...
I would suggest that you check the setting of the upper limit for the LWT in the controller. Do you have any of the following in your system? Buffer...
@cathoderay I suspect that the second increase in LWT occurs after your heating system and heat emitters are fully up to temperature, hence the RWT ...
@sunandair What is the water flow rate? It would be interesting to see what effect reducing the flow rate would have. Also what is happening with ...
@jamespa Hi James, I have now completed a WC version of the modelling tool, which I think works quite well. If you have the time and inclination...
Having read the blog and watched the video, it has convinced me to never buy anything from grant. 🙄
Latest Posts
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RE: Testing new controls/monitoring for Midea Clone ASHP
I agree, the video lacks context and detail, and the Mi...
By cathodeRay , 2 hours ago
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RE: Repiping and Reconfiguring our Heat Pump System Including Removing the Buffer Tank
@heacol maybe you can figure why mines vibrating the pr...
By AdamK , 2 hours ago
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RE: Powerwall 3 or Myenergi or something else?
@adamk what you need is enough battery size to cover 3 ...
By Judith , 2 hours ago
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RE: Say hello and introduce yourself
@jarlatheoin do put the MVHR in early it’s not an easy ...
By Judith , 3 hours ago
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RE: How to Zone with a Single Room with UFH
We have exactly what you describe, one utility room wit...
By Judith , 3 hours ago
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RE: Who's your electricity provider and what's your tariff?
@agentgeorge Come the Ist of October, the Cosy cheapest...
By Toodles , 4 hours ago
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RE: Boxt Heat Pump Installation Experience
@ashfp Mine does have a buffer tank. That was my experi...
By Andrew J H , 16 hours ago
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RE: Which temperature sensor for a Steibel buffer and Ecodan?
@ashp-bobba might be able to help as an Ecodan expert.
By Mars , 1 day ago
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RE: Help me keep the faith with my air source heat pump installation
I'm sure you are right, I was just trying to understand...
By JamesPa , 1 day ago
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RE: Preparing for 2nd winter in new build house.
Yuch! So that's basically just an on/off control. I...
By Transparent , 2 days ago
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Good day everyone. I'm new here and have a few question...
By Edin67 , 2 days ago
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RE: MCS certificate SCOP vs real-world performance
That may be contributing to lower than expected SCOP. ...
By JamesPa , 3 days ago
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RE: Mitsu PAR-WT60R Wireless Controller - options
How it does it's job is something of a mystery although...
By Abernyte , 3 days ago
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RE: How to choose Towel Rails for an ASHP
@rob-nezard yes absolutely. Here is the link and a pho...
By GrahamF , 5 days ago
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@mixergy Thanks for the update, I would appreciate some...
By bontwoody , 5 days ago
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RE: Is Your Broadband Router the Weak Link in Your High-Tech Home?
Unfortunately I'm not that well connected 😂 ...
By Scalextrix , 5 days ago
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RE: A Customer's Lessons Learnt from a Heat Pump Installation in a Large House
It is interesting to see what our new Grant Aerona 290 ...
By GrahamF , 5 days ago
