Renewable Heating Hub Heat Pump Forums

Search with Wattson
Forums
Renewable Heating
Air Source Heat Pum...
Are frost protectio...
 
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!

Are frost protection valves triggered by low air temperatures?

 
Air Source Heat Pumps (ASHPs)
3 Posts
2 Users
1 Reactions
2,211 Views
RSS
 daveheatpumpowner
(@daveheatpumpowner)
New Member Member
Joined: 3 years ago
Posts: 2
Topic starter 25/03/2024 10:57 am   [#1452]

Does anyone know if frost protection valves are triggered by low air temperatures (say below a threshold of 3C), or when the water in the pipe gets to that temp? Its just that they seem pointless if they are triggered by the air, as the water can be kept warm by the frost-protection function running the pump when the air temp outside is below 6.

Mitsubishi told me that I don't need glycol to keep the warranty, as long as I have frost protection valves + the frost protection function enabled. My concern is that when the air temp falls below 3C, if the valves dump the water then I wont have heating, despite the frost-protection function stopping any risk of icing.

Obviously if there is a power cut at the same time as low temps then I'd need the valves to kick in, but this is an unlikely combination, especially as I have batteries. Would rather avoid glycol and its efficiency reduction if possible.



   
Quote
Topic Tags
frost protection valve ai
Toodles
 Toodles
(@toodles)
Famed Member Contributor
Joined: 4 years ago
Posts: 3007
25/03/2024 11:11 am  

The water temperature is the triggering element:

See: https://www.intatec.co.uk/product/anti-freeze-valves/#:~:text=Designed%20to%20discharge%20when%20the,costly%20damage%20to%20the%20system.

Regards, Toodles.


Toodles, heats his home with cold draughts and cooks food with magnets.


   
👍
1
ReplyQuote
 daveheatpumpowner
(@daveheatpumpowner)
New Member Member
Joined: 3 years ago
Posts: 2
Topic starter 25/03/2024 11:23 am  

@toodles Brilliant - thank you so much toodles!!



   
ReplyQuote
Forum Jump:
  Previous Topic
Next Topic  
Topic Tags:  frost protection valve ai (1) ,
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