Fujitsu Waterstage WOYG160LJL Air Source Heat Pump
@gary Good morning, thanks for taking the time to reply. Yes, you've described my system exactly. This is what I was suggesting I might try to @jamespa in my earlier post but you've expressed it much clearer. My thoughts were that if I left just one heatmiser connected I'd have a modicum of remote control over the ashp even if it was only a basic on / off. At the moment, I'm trying it with all the heatmisers set high to keep the actuators open to see how it goes. But I'll keep the removal idea in reserve.
Thanks
John.
@barrovian1963 the thermostats are wirelessly connected to the wiring centre, the wiring centre is connected to the heat pump, when a thermostat calls for heat the wiring centre tells the heat pump to turn on and sends a signal to the actuators to open.
You don't need any actuators connected for the thermostat and wiring centre to tell the heat pump to turn on that side of things will still work correctly.
What I ended up doing was removing all the actuators and unpairing all of the thermostats from the wiring centre except the hall way one. Now when the hall way calls for heat all of the circuits are open.
Posted by: @barrovian1963@gary Good morning, thanks for taking the time to reply. Yes, you've described my system exactly. This is what I was suggesting I might try to @jamespa in my earlier post but you've expressed it much clearer. My thoughts were that if I left just one heatmiser connected I'd have a modicum of remote control over the ashp even if it was only a basic on / off. At the moment, I'm trying it with all the heatmisers set high to keep the actuators open to see how it goes. But I'll keep the removal idea in reserve.
Thanks
John.
Nothing wrong with a remote on/off switch. I used to use my 40 year old hall thermostat that way when I had a boiler (as a thermostat it was essentially useless, its now redundant and removed).
4kW peak of solar PV since 2011; EV and a 1930s house which has been partially renovated to improve its efficiency. 7kW Vaillant heat pump.
Posted by: @jamespa3 times per hour is reasonable. Are you sure it isn't doing defrost rather than cycling because of overcapacity?
Can I just ask a (another) basic question, going back to my obsession with cycling. What is considered a 'cycle'? Is one period on followed by an off period one cycle, or is it two cycles? i.e. on/off =1 or on/off =2 cycles.
Posted by: @barrovian1963Posted by: @jamespa3 times per hour is reasonable. Are you sure it isn't doing defrost rather than cycling because of overcapacity?
Can I just ask a (another) basic question, going back to my obsession with cycling. What is considered a 'cycle'? Is one period on followed by an off period one cycle, or is it two cycles? i.e. on/off =1 or on/off =2 cycles.
A period of on followed by a period of off is one cycle, but only if followed (or preceded) by more on-off periods. One on/off transition on its own is a change of state.
4kW peak of solar PV since 2011; EV and a 1930s house which has been partially renovated to improve its efficiency. 7kW Vaillant heat pump.
Posted by: @jamespaA period of on followed by a period of off is one cycle, but only if followed (or preceded) by more on-off periods. One on/off transition on its own is a change of state.
So before I exhaust your patience completely, 10mins on 10mins off is one 20min cycle. Therefore it's cycling 3 times an hour and while not ideal shouldn't be grounds for too much concern?
@barrovian1963 yes. Not ideal but not disastrous either. There are tricks to increase the period/reduce the frequency eg increase flow temp hysterisis if it's adjustable. Once we get to say mid march you could consider timed heating if it suits your lifestyle.
4kW peak of solar PV since 2011; EV and a 1930s house which has been partially renovated to improve its efficiency. 7kW Vaillant heat pump.
@jamespa Thanks. I’m going to try and leave well alone for a while ( not to mention giving you a break from my constant questions ) and see how we go. If it’s ok then, I’ll come back in a month or so if I think further fiddling might help.
cheers,
John.
No problem if you want to ask more questions but without a doubt leaving these things from time to time is a good idea. only by doing so do you get to find out what they really do and lead a normal life.
4kW peak of solar PV since 2011; EV and a 1930s house which has been partially renovated to improve its efficiency. 7kW Vaillant heat pump.
- 22 Forums
- 2,070 Topics
- 45.3 K Posts
- 55 Online
- 3,343 Members
Join Us!
Trusted Installers
Struggling to find a reliable heat pump installer? A poor installation can lead to inefficiencies and high running costs. We now connect homeowners with top-rated installers who deliver quality work and excellent service.
✅ Verified, trusted & experienced installers
✅ Nationwide coverage expanding
✅ Special offers available
Latest Posts
-
RE: Home energy storage & battery register
Really depends how you use them, and how you have them ...
By Johnmo , 16 minutes ago
-
Check the detailed specs. 7kW Vaillant is actually 8kW...
By JamesPa , 19 minutes ago
-
RE: Heat pump installation and BUS Grant timings
Where do you get the requirements for EPC rating above...
By Johnmo , 30 minutes ago
-
RE: Jokes and fun posts about heat pumps and renewables
@transparent ‘Protein’s extra Luv’.
By Toodles , 1 hour ago
-
RE: Getting the best out of a heat pump - is Homely a possible answer?
@johnnyb I was on Smart, mostly because I was on Agile ...
By Arundalep , 14 hours ago
-
RE: Forum updates, announcements & issues
@editor Fairy Nuff Mars, I doubt that my ramblings woul...
By Toodles , 20 hours ago
-
RE: Antifreeze top up for my heat pump - is this a rip off?
@johnmo You are correct, standard Ethylene glycol used ...
By Brendon Uys , 21 hours ago
-
RE: Confusion about heat pump sizing
We’ve published a deep dive into heat pump sizing, and ...
By Mars , 1 day ago
-
We’ve published a deep dive into heat pump sizing, and ...
By Mars , 1 day ago
-
RE: Kensa GSHP finally installed - now to start the optimisation process
Just had a quick scan of the manual and should be weath...
By Johnmo , 2 days ago
-
RE: Potentially more choice including air to air heat pump grants
Hi all, I agree, the consultation documents are alway...
By madbilly , 2 days ago
-
RE: Commencing on an ASHP Installation Process
I think those are pretty much the standard figures that...
By JamesPa , 2 days ago
-
RE: Load Compensation and Weather Compensation
I think that maybe what the adia thermal system does, b...
By JamesPa , 2 days ago
-
RE: Enabling WiFi: Samsung ASHP on Smart Things App
@old_scientist @profzarkov thanks to you both for the v...
By Grahamh-uk , 2 days ago
-
RE: Nibe F2040 periodic warm water increase fails
@tribol here's an official reply from NIBE on your case...
By Mars , 2 days ago
-
RE: Vaillant & OVO partner up to offer Heat Pump Plus
@ecodan-efficiency On the other hand, the fact that the...
By Richard24738 , 3 days ago
-
RE: How accurate was your heat loss survey?
@scalextrix for our house 1950s detached the air leakag...
By Judith , 3 days ago
-
-
RE: Air Changes per Hour - ACH and the MCS requirement
@matwin If you plan to commission one it might b...
By JamesPa , 4 days ago