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Make sure ventilation is adequate to maintain recommend-
ed operating temperature. Keep a minimum distance of
2 in (5 cm) between the cooling fan and surrounding items
(e.g., housing, walls, etc.), or else install an external auto-
matic ventilation system.
The mains plug is a disconnecting device to separate the
pump from the supply voltage. Ensure that the mains plug
is easily accessible at all times to allow the separation of
the device from the power supply.
Use connecting hoses with large diameter and keep them
as short as possible to avoid flow losses. Locate the pump
as closely as possible to the application.
Always install outlet tubing descending from the pump or
provide other measures to avoid backflow of condensate
towards the pump.
NOTICE
Voltage selection switch:
1. Disconnect the electrical power cord.
2. Use a screw driver to adjust the
voltage selection
switch
at the terminal box of the pump to the supply
voltage:
”115/120” corresponds to 90-126 V and
”230/240” corresponds to 180-253 V.
voltage selection
switch
• 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.
•
Pump with dual-voltage motor
: Check that the volt-
age selection switch at the terminal box is positioned
correctly. Check every time before starting the pump.
Note
: If the pump is switched on with wrong voltage
selection, the motor may be damaged!
Change the selection at the voltage selection
switch only, if the pump is unplugged from the
power source.
