Speck pumpen BN 10 A Instructions D'utilisation page 21

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4
4.1 Application
This circulator is suitable for drinking water only.
4.2 Functions
Valves The pumps are equipped with a non-return valve
(1) on the pressure side and with a stop valve (2)
on the suction 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
Principle of operation
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