Position Of The Terminal Box; Minimum Pressure; Return Valve - Biral MX 10 Instructions D'installation Et D'entretien

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4.4 Position
of the terminal box
The delivery position
is position A, (corresponds
to assembly position F, K)
The terminal box must
not point downwards
(M,N,O,P) as otherwise
water may penetrate easily.
Before installing the pump,
the terminal box can be
turned by 90° in each case.
To do this, undo the casing's
4 screws and turn the motor
head to the required
terminal box position.
Do not shift or damage
the seal between the motor
and pump casing.
After inserting the screws,
tighten them up diagonally.
The arrow on the pump
housing indicates
the direction of flow.
The motor shaft always
has to be horizontal,
never vertical.
english
Install stop slide valve before and after the pump.
This will avoid having to drain and refill the system
if the pump has to be replaced.

4.5 Minimum pressure

At 75 °C, the minimum pressure at the pump intakes for reliable
lubrication of the sleeve bearings:
MX 10, MX 12, MX 13, M 14, M 15, SX 12, SX 13, SX 15
The values apply up to 500 m (1640 ft) above sea level.
Additional pressure for greater heights:
0.01 bar per 100 m (328 ft) additional altitude.
Additional pressure for:

4.6 Return valve

If a return valve has been installed, the pump has to be set up
(see point 6.4) so that the pump's minimum delivery pressure
can exceed the valve's closing pressure at any time.
90 °C
110 °C
0,1 bar
0.35 bar
1.10 bar