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Gary
@gary
Member
Prominent Member
Joined: Feb 8, 2023
Last seen: May 1, 2025
Profile Activity
Topics: 1 / Replies: 340
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Reply
RE: Yes, the "zoning with ASHP" topic again...

Where is the heat pump controller going that will be the thermostat it just needs to be in a sensible location. If you are running weather comp the ...

5 days ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Help me understand my Mitsubishi Ecodan system

@robs Thanks that's what I suspected mine definitely doesn't have it.

7 days ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Help me understand my Mitsubishi Ecodan system

@carpenterstation because heat pumps are built by engineers and have not been historically developed for the average human to be able to operate, henc...

7 days ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Help me understand my Mitsubishi Ecodan system

@carpenterstation Yep that looks all normal, if you want to turn the heating off and leave the hot water on then you have to do it from the controller...

7 days ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Help me understand my Mitsubishi Ecodan system

@robs Is this only in the newer controllers I don't have that option on my FTC5

7 days ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Newbie: utterly confused with my Mitsubishi Zubadan air source heat pump running on 55C set flow temperature

[quote data-userid="6617" data-postid="44648" The DHW COP is the worst we've had yet strangely. And there were no big drains on the water yesterday. ...

3 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan - is there actually such a thing as a 'minimum' flow temp to avoid cycling, and why if so?

Yes it’s really there to allow the heat pump to vary the flow temp above the set point if the room temp is significantly below the set point and then ...

3 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan - is there actually such a thing as a 'minimum' flow temp to avoid cycling, and why if so?

On an Ecodan the std compensation curve mode only allows the flow temp to drift by 1 or 2C before it shuts off on auto adapt the allowable drift is pr...

3 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan - is there actually such a thing as a 'minimum' flow temp to avoid cycling, and why if so?

32C is the lowest my system will go without cycling but at that flow temp the heat input is higher than the heat loss so the thermostat has to cut in ...

3 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: What happens when the outside temperature exceeds the upper WC point?

@robs What controller do you have I think mine is too old to have that, I don't recall ever seeing summer mode in the service menu.

4 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: What happens when the outside temperature exceeds the upper WC point?

Mitsubishi Ecodan just runs the same flow temp when it reaches the limit of the set curve. I am not aware of any way of telling the heat pump not t...

4 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: A question about battery life

@judith

4 weeks ago
Forum
Energy Storage
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