Renewable Heating Hub Heat Pump Forums

Search with Wattson
Forums
Renewable Heating
Air Source Heat Pum...
Removing a Low Loss...
 
Notifications
Clear all

Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!

Removing a Low Loss Header from Samsung Gen6 System

 
Page 3 / 3
Air Source Heat Pumps (ASHPs)
Last Post by bontwoody 2 years ago
28 Posts
5 Users
0 Reactions
7,537 Views
RSS
 iancalderbank
(@iancalderbank)
Prominent Member Contributor
Joined: 4 years ago
Posts: 643
05/04/2024 10:32 am  

also its worth saying, the PWM pump is not the enabler to run at low flow temps. That comes from having big enough emitters, properly balanced, etc.

what the PWM does is control the flow rate up/down to maintain the DT , at lower output levels when running in a steady state for a long period. For a given lower output, you can have either the flow rate staying the same (Fixed speed pump) and DT reduced, or the DT can stay the same and the flow rate reduces (variable speed pump).

there is an FSV , can't remember the number of the top of my head, for Target DT. with a PWM pump in the system, the samsung will vary the flow rate to try to maintain this DT but only when its in the stable part of a heating cycle. It has no effect when doing DHW, or when in the initial startup part of a heating cycle (Which is 30-60 mins , at least on my system). This FSV for DT control method  has no function if you don't have a PWM pump (this is a common misconception), and is of little use in a system with primary/secondary seperation.


My octopus signup link https://share.octopus.energy/ebony-deer-230
210m2 house, Samsung 16kw Gen6 ASHP Self installed: Single circulation loop , PWM modulating pump.
My public ASHP stats: https://heatpumpmonitor.org/system/view?id=45
11.9kWp of PV
41kWh of Battery storage (3x Powerwall 2)
2x BEVs


   
ReplyQuote
bontwoody
 bontwoody
(@bontwoody)
Noble Member Contributor
Joined: 4 years ago
Posts: 1046
05/04/2024 8:08 pm  

@iancalderbank Thanks for that explanation Ian, very interesting and useful


House-3 bed partial stone bungalow, 5kW Samsung Gen 6 ASHP (Self install)
6.9 kWp of PV
10kWh DC coupled battery
Blog: https://thegreeningofrosecottage.weebly.com/
Heatpump Stats: http://heatpumpmonitor.org/system/view?id=60


   
ReplyQuote
 EcoBaker
(@ecobaker)
Trusted Member Member
Joined: 2 years ago
Posts: 45
Topic starter 06/04/2024 4:45 pm  

@iancalderbank Ah okay, thats interesting. I have to say deciphering the user manual and FSV values is one of the most difficult parts of owning a samsung heat pump.


Samsung Gen6 8kw ASHP in a two bed victorian mid terrace.


   
ReplyQuote
bontwoody
 bontwoody
(@bontwoody)
Noble Member Contributor
Joined: 4 years ago
Posts: 1046
06/04/2024 4:50 pm  

@ecobaker  You should see a Mitsubishi! 🤣 


House-3 bed partial stone bungalow, 5kW Samsung Gen 6 ASHP (Self install)
6.9 kWp of PV
10kWh DC coupled battery
Blog: https://thegreeningofrosecottage.weebly.com/
Heatpump Stats: http://heatpumpmonitor.org/system/view?id=60


   
ReplyQuote
Page 3 / 3
Forum Jump:
  Previous Topic
Next Topic  
Topic Tags:  headers (1) ,
Share:

SPONSORS

Join Us!

Installer Finder

Degrees of Separation

Latest Posts

SPONSORS

Click to access the login or register cheese
Protected By
Shield Security PRO