Wanted to install those but I have quite an issue with manufacturer requirement not to insulate them, that's quite a heat loss. Any idea how to solve that?
The answer is not to solve the problem. Caleffi explain in another video that it's important that the central section of the value has the lowest temperature of the any component in the system (including the outdoor unit), otherwise it can't protect the outdoor unit from damage. This also means that you can't put any trace heating close to these valves. You can insulate right upto the connections on the valve, but the body of the valve must remain uninsulated. If the home has some Solar PV and Battery storage, the energy lost is being replaced for free anyway, so perhaps its not enough to worry about.
I am not 100% what you are referring to. however, if you are installing on the upper floor we highly recommend installing higher levels of insulation above and no matter the floor always use foil backed plasterboard
Wanted to install those but I have quite an issue with manufacturer requirement not to insulate them, that's quite a heat loss. Any idea how to solve that?
The answer is not to solve the problem. Caleffi explain in another video that it's important that the central section of the value has the lowest temperature of the any component in the system (including the outdoor unit), otherwise it can't protect the outdoor unit from damage. This also means that you can't put any trace heating close to these valves. You can insulate right upto the connections on the valve, but the body of the valve must remain uninsulated. If the home has some Solar PV and Battery storage, the energy lost is being replaced for free anyway, so perhaps its not enough to worry about.
I am not 100% what you are referring to. however, if you are installing on the upper floor we highly recommend installing higher levels of insulation above and no matter the floor always use foil backed plasterboard
there are no outdoor units or valves. this is not a wet system.
Caleffi have listened and now do versions with nuts and olives! Part numbers begin 108 rather than 107.
Please do add the link to help others. Thank you for the comment
Hello can be good and for minus 15 degrees?
Yes. They start discharging at higher temperatures and whilst the liquid is moving it isn’t freezing. Once empty your risk has been lowered.