All I can do is warn everyone here away from Micoe heat pumps, wherever in the world you are.
I've figured out a number of problems. First, its control of the three-way valve (DHW or hydronic) is backward from others, so I had to replumb the 1" lines, swapping the roles of DHW and hydronic. This is a Euro valve so requires 230vAC, so I send it L1 and L2 to blue and brown. Black is the control, so it needs connected to its opposite (L1 or L2, depending on how the outside is wired. Bottom line: now the infernal heat pump appropriately switches the valve according to whether I select DHW or hydronic, or both.
I actually got the damned thing to heat the house for several days in hydronic mode, after purging tiny bits of air using scores of gallons of water. But the need for a shower became intense. I switched it to DHW and oh, I heard air. Purged and purged and purged, but it still faults on 'water flow' switch.
It is hyper-sensitive to air in the system and faults. It has an air purge, and I have an air purge, but they're not enough. Either the cheap-arse pump can not prime when a few bubbles, or the flow switch is badly located.
I know that some here are DIYers, but I am a developer and am the final say in tech support for all aspects of building houses with the most advanced techs -- seismic-safe, non-combustible, exceptionally energy efficient. I am ultimately responsible for everything in my business, because I do not shuck that responsibility as so many weaklings do. I have to be good, not least to keep good people and lead by expertise rather than fear.
For those who come here looking for an AWHP, I recommend Arctic Air. They are also made in Red China (yeees, it is still a Communist State) and can be had much cheaper than from Arctic.
And to Micoe: I am a developer. I am currently building out a 9 unit development of houses >$1m each. (Seattle) My own house is my test-bed. tsk tsk. Your tech support responds to me with "I see", and "millions of units work everywhere else", lol. IOW, 'too bad, so sad.' Bonus: I have developer friends. I will certainly apprise them of my findings.
I've figured out a number of problems. First, its control of the three-way valve (DHW or hydronic) is backward from others, so I had to replumb the 1" lines, swapping the roles of DHW and hydronic. This is a Euro valve so requires 230vAC, so I send it L1 and L2 to blue and brown. Black is the control, so it needs connected to its opposite (L1 or L2, depending on how the outside is wired. Bottom line: now the infernal heat pump appropriately switches the valve according to whether I select DHW or hydronic, or both.
I actually got the damned thing to heat the house for several days in hydronic mode, after purging tiny bits of air using scores of gallons of water. But the need for a shower became intense. I switched it to DHW and oh, I heard air. Purged and purged and purged, but it still faults on 'water flow' switch.
It is hyper-sensitive to air in the system and faults. It has an air purge, and I have an air purge, but they're not enough. Either the cheap-arse pump can not prime when a few bubbles, or the flow switch is badly located.
I know that some here are DIYers, but I am a developer and am the final say in tech support for all aspects of building houses with the most advanced techs -- seismic-safe, non-combustible, exceptionally energy efficient. I am ultimately responsible for everything in my business, because I do not shuck that responsibility as so many weaklings do. I have to be good, not least to keep good people and lead by expertise rather than fear.
For those who come here looking for an AWHP, I recommend Arctic Air. They are also made in Red China (yeees, it is still a Communist State) and can be had much cheaper than from Arctic.
And to Micoe: I am a developer. I am currently building out a 9 unit development of houses >$1m each. (Seattle) My own house is my test-bed. tsk tsk. Your tech support responds to me with "I see", and "millions of units work everywhere else", lol. IOW, 'too bad, so sad.' Bonus: I have developer friends. I will certainly apprise them of my findings.
