Μεταφέρω από το manual:
1. Therefore, the indoor units and the pipes between indoor and outdoor units must be leak
tested and evacuated to remove gas and moisture from the system.
Το κενό επιβάλλεται!
2.Make evacuation for 30 minutes and check whether the compound meter indicates -0.1Mpa. If the meter does not indicate
-0.1Mpa after pumping 30 minutes, it should be pumped 20 minutes more. If the pressure can't achieve -0.1Mpa after
pumping 50 minutes, please check if there are some leakage points.
Άρα η επίτευξη κενού μπορεί να διαρκέσει και 50 λεπτά.
3.Επίσης γράφει
Standard length 5m
Maximum length 25m
Maximum height 10m.