Review on Vacuum pump DSZH WK-115N (1 st., 42 l/min, 4.2 kg) by Micha Micha ᠌

Bought to service 2 split systems. Vacuumed continuously for 30 minutes at an air temperature of 27-30 degrees - I thought that it would burn out from overheating (the hand does not tolerate such a temperature even for a second), but survived. After the "break-in" (the first evacuation), the sound of operation became quieter. The oil in the attached bottle is approximately 60% - filling up to the middle line of the viewing window and 40% for topping up, but when it will be necessary for my situations, it is not clear. Before buying, I awakened the entire "market" of vacuum pumps - hucksters, of course, claim that "devices for 30-40 thousand are better: the vacuum is cleaner and deeper, without space debris and satellites" - they know better, but that was enough for me! The price of the voiced services of "professionals" from the site of the same name prompted the purchase of a pump and independent maintenance of conduits: ". 7000 for refueling with 410 freon (1000 for 100 gr.) ." (per unit) - why is this the amount, because the 410th refuels easily and it needs 520 gr. on a split!