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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: 4403
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RE: -5c this weekend – what's your heat pump strategy?

Have you considered running your heat pump from the mains supply, rather than the batteries, during the warmer part of the day when the heat pump shou...

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

Here is one method you could try if your thermostats have a schedule capability. Rather than trying to program a change in WC curve or WC offset, pr...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Samsung 12kw efficient running. The little tweaks.

Below is my interpretation of the various settings. #4051 0 = water pump off 1 = water pump on - speed range 0 to 100% 2 = water pump on -...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: How to best configure my Mitsubishi heat pump to work effectively?

Would you care to post a photo of your schematic and details of your circulation pump?

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: How to best configure my Mitsubishi heat pump to work effectively?

You have a Samsung ASHP, which does not have an internal water pump, hence the need for the PWM control signal, whether it is used or not, to control ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Daikin ASHP experiences as part of our Italian renovation project

@marzipan71 Hi Steve, Thank you very much for the update. It is always useful to get feedback, both good or bad, and it also helps other forum rea...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: How to best configure my Mitsubishi heat pump to work effectively?

As far as I am aware, the Ecodan has an internal water pump, the speed of which the controller varies to maintain the Delta T at the heat pump. If y...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: How to best configure my Mitsubishi heat pump to work effectively?

As you state it is a black box, so we don't know what is happening internally within the controller. I am used to industrial control systems, where on...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Heat pump delta T too low - 2c

@benseb Partially closed radiator valves both lockshield and TRV's will restrict the flow around the system, and hence the water pump will need to w...

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

Looking at the schematic on page 13 of the attached manual, the Teva_in reading would appear to be from sensor T/S#5. There would appear to be no temp...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: What's your current daily damage?

The amount of electrical energy used is dependent upon the overall heat loss and how efficient your system is operating, plus of course the none heat ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Samsung 12kw efficient running. The little tweaks.

When I am testing systems I initially take readings at many points, then reduce the number of points once I discover which are important and which are...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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