Principle of operation
Installation and operating instructions Wilo-Star-Z NOVA 7
English
4 Principle of operation
4.1 Application
The pump is intended for pumping potable or
process water in a circulation system.
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
> Page 9.
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