The flexible tube is, presumably, the condensate. This should be connected to a waste pipe, or to a drain in a prescribed manner. Are you SURE it connects to the copper pipe sticking out of the wall? If it is, there shoul be condensate dripping from it. It (condense) may be connected properly, and the copper pipe is to be connected on monday to the PRV.
EDIT: Must type faster. Crossed with Dans post.
Just a point though, the liability on the part of the installer is not subject to their being PLI in place.
EDIT: Must type faster. Crossed with Dans post.
Just a point though, the liability on the part of the installer is not subject to their being PLI in place.