puntloos Posted May 5 Share Posted May 5 My ASHP is placed right next to the house (as I imagine many aircons are as well), on some rubber-ish feet. (thankfully not wall-mounted other than the pipes going into the wall.) https://www.dpbuildingsystems.co.uk/flexi-foot-400mm-with-strut-ff-400-s-en Apparently my device's fan runs at 35Hz since especially in the adjacent room I can feel/hear, even measure the vibration quite easily. My question - is there anything I can do to improve the situation? Any type of further de-coupling? Can I upgrade the flexi foot thing somehow? Link to comment Share on other sites More sharing options...
JohnMo Posted May 5 Share Posted May 5 How is your piping run down you have flexibility pipes between ASHP and house? Anything solid will transfer vibration. Link to comment Share on other sites More sharing options...
puntloos Posted May 5 Author Share Posted May 5 1 minute ago, JohnMo said: How is your piping run down you have flexibility pipes between ASHP and house? Anything solid will transfer vibration. Not sure, they're R32 pipes, I don't believe anything special has been done to them. Link to comment Share on other sites More sharing options...
ProDave Posted May 5 Share Posted May 5 So it is a split unit. How do you know the noise is originating from outside unit? Link to comment Share on other sites More sharing options...
puntloos Posted May 6 Author Share Posted May 6 19 hours ago, ProDave said: So it is a split unit. How do you know the noise is originating from outside unit? Vibration stops when I turn off the outside unit Link to comment Share on other sites More sharing options...
puntloos Posted May 7 Author Share Posted May 7 In the home cinema world, subwoofers often are put on spikes. I wonder if something in that direction would make sense? Or will most of the noise be coming through my pipes not the floor? (the ASHP is on a slab of concrete, I don't think that slab is connected to the house wall, there's a small 'gutter' at least between the slab and the wall, although maybe there's concrete under that gutter. Link to comment Share on other sites More sharing options...
Moonshine Posted May 7 Share Posted May 7 (edited) Where / how are you feeling / measuring the vibration? Is it worse in any particular area? Edited May 7 by Moonshine Link to comment Share on other sites More sharing options...
puntloos Posted May 7 Author Share Posted May 7 2 minutes ago, Moonshine said: Where / how are you feeling / measuring the vibration? Is it worse in any particular area? I am imagining (ha, I thought I was having tinnitus) it was everywhere, but very ambient hard to hear, but my office desk is 2m away from the outdoor unit. One day I was standing in the networking closet (far corner of the office, near door) and it was loud there too. Link to comment Share on other sites More sharing options...
JohnMo Posted May 7 Share Posted May 7 Do you have UFH with a pump or a buffer and secondary circuit pump? Link to comment Share on other sites More sharing options...
Moonshine Posted May 7 Share Posted May 7 What is the external wall build up? Where the pipes come into the house, can you feel them? Are they vibrating and rigidity mounted? Can you feel the vibration with your finger tips, anywhere worse than other spots? Link to comment Share on other sites More sharing options...
dpmiller Posted May 8 Share Posted May 8 the pipes all look a bit crammed in Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now