Principle Of Operation - Wilo Star-Z NOVA Notice De Montage Et De Mise En Service

Principle of operation

7
4
4.1 Application
This circulator is suitable for drinking water only.
4.2 Functions
Valves The Star-Z NOVA A and Star-Z NOVA C versions
are equipped with a non-return valve (1) on the
pressure side and with a stop valve (2) on the suc-
tion side.
When exchanging the motor head (3), it is suffi-
cient to cut the power by unplugging the con-
nector (5) and to close the stop valve at the
rotating slot (4). The motor head can then be sim-
ply unscrewed
Principle of operation

Page 9.
WILO SE 12/2017