VS works on a place and is designed to operate on its own. It gives out 48 powerful energies 24× 7 when installed at a place for which it is attuned.
There is no need to check its working as it is already programmed to work continuously.
Its good that you got it installed in a new place so you actually dont have to worry about the place energy now onwards till VS is there.
There are people who have installed VS without a second thought and without knowing if their home had negativities or required corrections. They did it to infuse the home with positivity 24×7
Now regarding VK
VK also works continuously ….its only that some users may need to test to clear their doubts or may expect results without efforts or may expect unreasonbly beyond their deserving or not able to work with patience. Or may be using it incorrectly.
In case of VS its self operational….so testing is not required.