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MXE 12_15
20.10.2006
38
4.4 Position
of the terminal box
The delivery position
is position A, B, C, D.
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.
12:37 Uhr
Seite 38
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:
MXE 12, MXE 13, MXE 14, MXE 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 Check valve
If a check 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.
95 °C
0,1 bar
0.45 bar
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