Install the circulator on the delivery pipe or on the return pipe. The arrow stamped on the pump body indicates the direction of flow.
Install an on-off valve on both the suction pipe and the delivery pipe.
ALWAYS fit the circulator with the motor shaft horizontal, avoiding dripping onto the motor and onto the terminal board.
![VS installation](/sites/default/files/inline-images/Circolatore%20VS%20installazione.PNG)
In case of thermal insulation, ensure that the condensate drainage holes in the motor casing are not closed or partially blocked.
![Vs installation part2](/sites/default/files/inline-images/Isolamento%20termico%20VS.PNG)
Do not mix additives derived from hydrocarbons and aromatic products with the circulating water. Antifreeze max. 30% (VSA max. 60%). Provide an anti-scale system in plants having domestic circulators with water total hardness (TH) higher than 15°F.
![Vs installation part3](/sites/default/files/inline-images/VS%20Non%20mescolare%20acqua%20additivi.PNG)
In the electrical connection to the power supply line, provide a two-pole switch with a contact opening distance of at least 3 mm. No motor overload protection is required. The instruction manual of the VS circulator (also available in our DNA software) provides all the indications to follow for the use of the product.