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• 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 is positioned correctly. Check ev-
ery 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.
Voltage selection switch:
1. Disconnect the electrical power cord.
2. Use a screw driver to adjust the
voltage selection
switch
to the supply voltage:
”115” corresponds to 90-132 V and
”230” corresponds to 180-253 V.
Keep a distance of minimum 8 in (20 cm) between fan and
adjacent equipment or casework.
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 to
avoid backflow of condensate towards the pump.
To reduce pump noise emanating from the pump exhaust
port, connect an exhaust hose or use a silencer (see ”Ac-
cessories”, pg. 35)
When assembling, ensure
vacuum-tightness
. After as-
sembly, check the whole system for leaks.
Secure hose connections at the pump appropriately, e.g.,
with hose clamps, to protect against accidental detach-
ment.
voltage selection switch
2
NOTICE
