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iancalderbank
@iancalderbank
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Joined: Oct 17, 2022
Last seen: Jan 14, 2025
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Topics: 0 / Replies: 643
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RE: PWM pump or not?

@bontwoody pretty sure it will yes. This doc is your bible (page 23) @derek-m I'm actually trying to setup public visibility of my stats via emoncms...

2 years ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
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RE: Heat pump research study: UK homeowners that decided not to install a heat pump after considering it

So: trying to put a "I'm not an engineer, I didn't install my own HP and I don't spend hours reading about this stuff" hat on, the below would be m...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: PWM pump or not?

BTW, here's the effect of PWM. I think we're right at the min output of the ASHP once this reaches steady state at around 14.45. without PWM I suspect...

2 years ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
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RE: Turning your heat pump off

quite possibly. when you do the maths, thats 125W on standby, which is not out of the question. there's a lot of discussion in various places about wh...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kW Samsung gen 6 short cycling

@iantelescope I gave you the midsummer wholesale doc several messages back. B1 and B6 are permanent L/N. when connected to these, the pump will run...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Dedicated heat meter and HP heat meter discrepency

@theallan I'd definitely suggest you draw a schematic to help us understand, the overall layout and where the metering points are. that may start to g...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: PWM pump or not?

double double check it is the right version - as the pic is for an AUTO - and includes the PWM cable . Have seen it sold without (even though its a PW...

2 years ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
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RE: PWM pump or not?

A is what you want for heating. C is for solar. the FLEX AS is available on a number of sites. just make sure you get that one not the AUTO you alread...

2 years ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
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RE: PWM pump or not?

@bontwoody I think they don't like being just a pump distie and want to keep stock to sell with a heat pump as a package. They've been good with th...

2 years ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: 12kW Samsung gen 6 short cycling

disagree. pump behaviour tells User if PWM is working or not. agree ok, good luck! disagree. documentation from at least one samsung s...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Rate the quality of your heat pump design and installation

@jamespa I agree with you about BUS adding cost to install contracts. which is one reason why I did what I did. (see my write up). But, if the house...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: PWM pump or not?

@bontwoody yay! the PWM gang gets another recruit. you can always keep the non-PWM one as emergency spare.

2 years ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
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