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Mike H
@mike-h
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Joined: Dec 1, 2021
Last seen: Dec 10, 2025
Profile Activity
Topics: 5 / Replies: 195
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Reply
RE: Getting the best out of a heat pump - is Homely a possible answer?

In this case, it uses the NASA protocol rather than modbus, but the register addresses are the same as far as I know. This is what it looks like on my...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Getting the best out of a heat pump - is Homely a possible answer?

I spoke to Homely about doing that, but he said that I would need to be a qualified electrician to become an approved installer. I have since installe...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: New Samsung 12KW Heat Pump Help

@ashp-bobba Thanks very much for your detailed reply. That is really helpful. In situations where the flow rate can deliver heat at a DT of 5 C or les...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: New Samsung 12KW Heat Pump Help

I suppose that might be true at a stretch if you were doing space heating throughout the summer, but who does that? I would dig your heels in until yo...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: New Samsung 12KW Heat Pump Help

@ashp-bobba Welcome to the forum. I would be interested to understand the reasoning behind your statements. What was your experimental set up? I would...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat Pump SCOPs – The Truth Might Not Be What You Think

Can you explain the mechanism for this effect? Could it just be coincidental rather than causal? System volume may prevent short cycling, but there ar...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: New Samsung 12KW Heat Pump Help

With your 2091/2092 settings, the heat pump will only cycle off if your 3rd party thermostat is no longer calling for heat. If your home is warm, t...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: New Samsung 12KW Heat Pump Help

Those settings exclude frequent cycling as the cause of poor efficiency. With 2091/2092 set to 'Use(Signal only ON/OFF)', FSV 2093 is inactive, so it ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Samsung Gen7 setup

@raiph I apologise for my incorrect assumption. A PWM pump should maintain your delta T, so I am not clear why you are experiencing problems with a lo...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Samsung Gen7 setup

@raiph You seem to want a Delta T of 5, but your water pump has a fixed speed / flow rate which is currently 15 l/min. Your heat output is determined ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: New Samsung 12KW Heat Pump Help

@dinhp I will try and upload an audio file as it is difficult to describe how it sounds. The noise level will vary depending on how hard the heat pump...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: New Samsung 12KW Heat Pump Help

@dinhp Thanks for the extra info. Your COP of 2.49 for today is not great if OAT is 9C, although it was probably colder overnight. Does this include a...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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