Forums

Forums
Members
trebor12345
Activity
 
Notifications
Clear all
trebor12345
trebor12345
@trebor12345
Member
Estimable Member
Joined: Feb 26, 2024
Last seen: Dec 2, 2025
Profile Activity
Topics: 8 / Replies: 90
AllTopicsReplies
Topic
Power Cut - Heat Pump Evaporator Iced Up
2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 0
Views: 85
Reply
RE: Compressor and Evaporator Stratification

Thank you. That's an excellent find. As you can probably see I know nothing about the mechanics of how HP work. Looking at the diagram how many diff...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
Compressor and Evaporator Stratification
4 months ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 3
Views: 311
Reply
RE: Hitachi Yutaki SCombi Heat Pump - Thermal Off's

Thank you this is very helpful. There is a lot to take in. I have the heating on today and have been doing videos of the Live View. The funny thin...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Hitachi Yutaki SCombi Heat Pump - Thermal Off's

File received thank you.

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Hitachi Yutaki SCombi Heat Pump - Thermal Off's

I have tried the DT mode and it does seem to be better with this setting. The Gundfros UPM3 is current in constant pressure setting 3 (max). When t...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Hitachi Yutaki SCombi Heat Pump - Thermal Off's

UFH is mainly 200mm. Screed - 17mm Ambi Tak. Mainly engineered wood and carpet and tiles.Grundfos UPM3 (K) in constant pressure mode. Switched on b...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Hitachi Yutaki SCombi Heat Pump - Thermal Off's

It has taken me a while to get my head around it, plus the warmer temperatures to prove it. I have tried to explain the situation to Hitachi, but they...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Hitachi Yutaki SCombi Heat Pump - Thermal Off's

Thank you all for your help, this has been a learning experience. So in summary. My heat pump is oversized, this causes Thermal Off’s or short cycle...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Hitachi Yutaki SCombi Heat Pump - Thermal Off's

I am drawing the same conclusion that this system for some reason switches off for 3 minutes then 8 minutes latter does it's de-ice cycle. It does th...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Hitachi Yutaki SCombi Heat Pump - Thermal Off's

8 room thermostats are all in Frost Protection mode. The one in the family room controls the heating. All the manifold actuators have been removed. ...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Hitachi Yutaki SCombi Heat Pump - Thermal Off's

Your calculation of 13W per sqm fits well with what I found at 14W. So if I require 14W/m2 and the floor area is 179m. 179x14 = 2505. Does that m...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Page 6 / 9
Share:

Join Us!

Podcast Picks

Latest Posts

Click to access the login or register cheese
x Powerful Protection for WordPress, from Shield Security
This Site Is Protected By
ShieldPRO →