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Derek M
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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: 4405
AllTopicsReplies
Reply
RE: 14kW Midea ASHP in an old leaky building

Why was a plate heat exchanger installed? Do you know if your radiators have been balanced using the lock shield valves? Is your weather compensatio...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 14kW Midea ASHP in an old leaky building

Hi @cathoderay How accurate is your IR temperature sensor? Can you check it against a known reference temperature?

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 14kW Midea ASHP in an old leaky building

It is standard practice with instrumentation to quote accuracy at Full Scale Deflection (FSD), though when greater accuracy is required the range may ...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 14kW Midea ASHP in an old leaky building

Hi @cathoderay Accuracy Class 1 means that the measurement is +/- 1% of the full range reading under unity power factor conditions. A meter with ...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 14kW Midea ASHP in an old leaky building

Hi @cathoderay The reading on the electricity meter, I suspect, will be more accurate than that measured by the heat pump. If you Google the model n...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Return temperature consistently higher than flow temperature

Hi Scottfen, I think that there may be some confusion in parameters. I assume that the 13500 that you mention is kWh's, and I suspect is the annual ...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 14kW Midea ASHP in an old leaky building

Hi, The fact that the Power Consumption is measured in kWh would indicate that it is the quantity used over a period of time and not an instantaneou...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Independence from power cuts

Hi Mars, During the day and evening it is normally in the 200W to 300W per hour range, overnight it can be as low as 100W per hour.

4 years ago
Forum
Solar Photovoltaic (PV)
Reply
RE: Who's your electricity provider and what's your tariff?

It is not just the O&G companies, but the commodity traders, who can buy and sell the cargo of a LNG tanker numerous times whilst it is in transit...

4 years ago
Forum
Electricity, Tariffs, Monitoring & Providers
Reply
RE: 14kW Midea ASHP in an old leaky building

Hi Graham, I have just had a quick look on the MCS site and could not find Midea in the list, is it under some other name?

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Independence from power cuts

Hi, I will try to make the explanation as simple as possible. During a power cut, your home and all the others in your area are still physically c...

4 years ago
Forum
Solar Photovoltaic (PV)
Reply
RE: Considering an ASHP: old 1860 stone property

Hi @sapper117 I am pleased to hear that your system is up and running. Do you know if your installer set your system to operate in weather compensat...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
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