Renewable Heating Hub Heat Pump Forums

Search with Wattson
Forums
Renewable Heating
Air Source Heat Pum...
Low flow rate on Sa...
 
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!

Low flow rate on Samsung Gen6 12KW heat pump

 
Page 8 / 8
Air Source Heat Pumps (ASHPs)
Last Post by RiponOwl 3 years ago
88 Posts
6 Users
4 Reactions
32.7 K Views
RSS
 Mike H
(@mike-h)
Reputable Member Member
Joined: 5 years ago
Posts: 200
20/10/2023 6:32 pm  

Posted by: @riponowl
↑

As far as I can see there is no way that the Eastron could possibly know which zone is active. It's not incorrectly wired, it's not wired at all.

You are correct. There should be a cable from terminal B17 in the control kit (the large white metal box with all the electrics inside) that goes to the L2 terminal in the Eastron. B17 becomes live when DHW is being heated and so when B17 is

connected to L2 in the Eastron, this becomes live as well. This tells the Eastron to label the flow temperature reading as DHW (there is only one flow temperature reading - it is just the label that changes). When L2 is not live the flow temperature is labelled as space heating.

It took 3 months for G L to get Passivliving to work at all. The G L electrician, who eventually sorted it, seemed very capable, but I presume they are instructed not to bother to connect a cable between B17 in the control kit and L2 in the Eastron. It is quite clearly explained in the Passivliving MMSP installation guide, so why they don't follow it, beats me. In my case there is a connection between L1 and L2, which there shouldn't be, which means that L2 is permanently live and my flow temperature is always labelled DHW. I did finally get a date for another G L electrician to correct this, but I had to cancel it and despite leaving messages they never got back to me. I asked Ofgem if it was important to rectify and they never replied, so I left it.

MMSP BB (V2) Installer Guide v3.2 (4).pdf


   
ReplyQuote
 RiponOwl
(@riponowl)
Trusted Member Member
Joined: 5 years ago
Posts: 45
Topic starter 22/10/2023 4:23 pm  

@mike-h Thanks Mike, that is super helpful.



   
ReplyQuote
 iancalderbank
(@iancalderbank)
Prominent Member Contributor
Joined: 4 years ago
Posts: 643
25/10/2023 2:23 pm  

Posted by: @riponowl
↑

@iancalderbank Where do you go to set a reheat timer for the HW? I'll try adding some lagging to the pipework and see if that helps.

settings button , buttom right hand corner of your controller.

scroll right -> schedule

fairly intuitive from there on

 


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
 RiponOwl
(@riponowl)
Trusted Member Member
Joined: 5 years ago
Posts: 45
Topic starter 25/10/2023 4:06 pm  

@iancalderbank Thank you.



   
ReplyQuote
Page 8 / 8
Forum Jump:
  Previous Topic
Next Topic  
Related Topics
Topic Tags:  flow rate (3) , Samsung gen6 (3) ,

Currently viewing this topic 6 guests.

Share:

SPONSORS

Join Us!

Installer Finder

Degrees of Separation

Latest Posts

SPONSORS

Members Online

 No online members at the moment

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