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Derek M
@derek-m
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Illustrious Member
Joined: Mar 4, 2021
Last seen: Sep 19, 2024
Profile Activity
Topics: 7 / Replies: 4403
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RE: PWM pump or not?

If my understanding is correct, the major saving to be made would be in improved efficiency, due to reduced cycling. In milder weather conditions th...

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

I am pleased that you are making some progress. What is the operating frequency of the PWM on the pump that now functions correctly? Are the two pum...

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

I am referring to the inner working of the pump controller, and how it may possibly be tested. I don't know what is inside the pump controller after...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Samsung ASHP scheduling help

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

I don't think that vertical hammocks work too well. 😎

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

I suggest that you read the rest of my post, which should then make the content of my statement clear. If you prefer I will change length to width.

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

I thought it was a seat, for when you are spending hours fine tuning your heating system. 😋

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

Thanks for finding the information. If my electronics knowledge serves me well, the lower of the two circuits on page 17 is a variable frequency osc...

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

@iantelescope PWM was developed to vary the amount of power being supplied to a device in a more efficient manner. It operates using DC, and as the ...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 2 heat pumps - 1 as a slave

You are correct. If your total calculated heat loss is 24kW, then at an outside temperature of 13C, the heat loss will probably be in the region of 8...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi ASHP - Circulating pump noise?

Because you have what looks like a buffer tank within your system, for maximum efficiency, it will be necessary to match the flow rate from the primar...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi ASHP - Circulating pump noise?

You should have been provided with the pump manual's by your installer, but if they did not then Google Make and Model to download any manuals.

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
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