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Derek M
@derek-m
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Illustrious Member
Joined: Mar 4, 2021
Last seen: Sep 19, 2024
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Topics: 7 / Replies: 4403
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RE: Poor location for ASHP, how much of an issue is it with respects to efficiency?

One of the most important factors, along with a good level of insulation, is the heating capacity of the heat emitters. Larger heat emitters can trans...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Connecting to Midea MSmartHome using a PC

@cathoderay One way to check would be to switch your system to fixed LWT at the present value, and see if the obtained value changes or remains 'fix...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Poor location for ASHP, how much of an issue is it with respects to efficiency?

Not exactly scientific testing procedure, but quite interesting. A more scientific method would be to have two identical heat pumps, one in a cold wel...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Connecting to Midea MSmartHome using a PC

@cathoderay I am not certain what the value of byte 14 is, please provide the message body.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Connecting to Midea MSmartHome using a PC

@cathoderay I appreciate what you are trying to achieve, but first we need to understand the structure and method by which the present 'available' d...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Poor location for ASHP, how much of an issue is it with respects to efficiency?

You have already proved that the heat pump is badly sited, since the colder discharge air is being drawn into the intake. Heat pumps are designed to o...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Connecting to Midea MSmartHome using a PC

@cathoderay Tracing the code for tank_actual_temperature in C3/device.py, the following is shown. custom_components/midea_ac_lan/midea/devices/c3/...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Connecting to Midea MSmartHome using a PC

That test would seem to prove that the data in the message is only being read from the Midea controller, but it is not being written to the controller...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Connecting to Midea MSmartHome using a PC

Now try changing one of the 'setting' values to see if that gets overwritten. class MideaC3Device(MiedaDevice): DeviceAttributes.dhw_temp_max: 60...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Connecting to Midea MSmartHome using a PC

Okay, try changing the value to something like 100, to see if that value appears in the message or whether it is overwritten by the true value.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Connecting to Midea MSmartHome using a PC

@cathoderay Continue the testing procedure in C3/message.py, as shown below. class C3MessageBody(MessageBody): # self.tank_actual_temperature =...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Connecting to Midea MSmartHome using a PC

@cathoderay Once the previous test has been completed, then remove the comment and comment the following line as shown below. class MideaC3Device(...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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