I’ve two Caleffi antifreeze valves I intend to fit adjacent to my Ecodan but the instructions state they have to be protected from direct sunlight, rain and snow.
The first isn’t a problem due to the location but how are people achieving the other two?
Why not just make a canopy to protect them with some pipe clips and some pvc sheet or ally sheet or fix someting off the wall if you have it clost to a wall