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trebor12345
trebor12345
@trebor12345
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Joined: Feb 26, 2024
Last seen: Aug 1, 2026
Topics: 18 / Replies: 179
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RE: Replacing my 18 month old Hitachi Yutaki ASHP

It the last cold spell, there was a thin layer of ice under the HP (about 3mm thick). Based on my measurement that each defrost cycle produces 1 litr...

8 months ago
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RE: Replacing my 18 month old Hitachi Yutaki ASHP

@jamespa As you can see from the picture there is about 4 inches between the HP and the plinth. It looks like the 2 holes are just holes in the ...

8 months ago
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RE: Replacing my 18 month old Hitachi Yutaki ASHP

Water comes out of 2 holes in the bottom of the heat pump. One in the middle and one to one side. There is no pipe.  

8 months ago
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RE: Replacing my 18 month old Hitachi Yutaki ASHP

@jamespa The heat pump sits on a level concrete plinth. There is a black Acro drain against the wall, but being a level plinth its not effective. ...

8 months ago
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RE: Replacing my 18 month old Hitachi Yutaki ASHP

@jamespa Yes water from the HP does tend to collect under the unit. There is a drain but its not effective. I will send a picture later. The no...

8 months ago
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RE: Hitachi Yutaki SCombi Heat Pump - Owners

@sim0n0 It would be very useful if you could tell us more about your experience.

8 months ago
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RE: Replacing my 18 month old Hitachi Yutaki ASHP

JamesPa I know these surveys are not the most accurate. From the Energy Performance Report From the Energy Survey   The building...

8 months ago
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RE: Replacing my 18 month old Hitachi Yutaki ASHP

From the Display and my temp probes. HP is in start up, been on for about 30 mins. Left: Twi. Middle: Two. Right: Return from underfloor

8 months ago
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RE: Replacing my 18 month old Hitachi Yutaki ASHP

@jamespa I have not been in that area before, not my area of comfort, (don't like playing in case I break something. Will have a look.

8 months ago
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RE: Replacing my 18 month old Hitachi Yutaki ASHP

Heating only just going on today (4:30pm), been off since last night (my intervention as we are too hot). Outside it's 13C here. Only reason for putt...

8 months ago
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