Secure hose connections at the pump ap-
propriately, e.g., with hose clamps, to protect
against accidental detachment.
EX
✔
✘
Always install outlet tubing descending from
the pump to avoid backflow of condensate to-
wards the pump.
NOTICE
NOTICE
MD 1 (AC motor)
Plug in the power cord.
• Check the power source and the pump’s
rating plate to be sure that the power source
and the equipment match in voltage, phase,
and frequency.
Switch the pump on.
Electrical connection
O
➨ I
Pump with dual-voltage motor
:
• Check the power source and the pump’s
rating plate to be sure that the power source
and the equipment match in voltage, phase,
and frequency.
• Check that the voltage selection switch is
positioned correctly. Check every time be-
fore starting the pump.
Note
: If the pump is
switched on with wrong voltage selection,
the motor may be damaged!
Summary of Contents for MD 1
Page 27: ...page 27 of 72 MD 1 MD 1 C US pump with dual voltage motor 4 9 8 7 5 6 3 2 1 2 1 2 1 ...
Page 28: ...page 28 of 72 MD 1 VARIO SP Ensure sufficient venting of the pump 9 5 6 7 10 ...
Page 53: ...page 53 of 72 1 2 1 2 3 15 mm 4 6x size 2 2x 1 ...
Page 54: ...page 54 of 72 4 5 6 20696264 Clean ...
Page 55: ...page 55 of 72 Replacing the diaphragm 7 8 9 1 2 ...
Page 56: ...page 56 of 72 3 10 11 12 Pay attention to number of washers ...
Page 57: ...page 57 of 72 13 14 15 1 2 Pay attention to number of washers ...
Page 58: ...page 58 of 72 Replacing the valves and assembling the pump heads 16 17 18 4x ...
Page 60: ...page 60 of 72 22 23 16 15 24 1 2 Maintain all pump heads in the same way 15 16 mm size 2 2x ...