Liberty Pumps 250 Serie Manual De Instalación página 9

If a single phase pump is to be wired directly into a control device or junction box, and it is necessary to remove the
plugs, have a certified electrician do the wiring in accordance with the National Electric Code and applicable local codes.
See Fig. 6 for direct wire installation of single phase, automatic pumps.
For 208-230V installations: Install a double pole disconnect near the pump installation. One
side of the line going to the pump is always "hot", whether the float switch is in the "On" or the "Off"
position. Use of a double pole disconnect will allow both hot legs to be de-energized.
6. Maintenance
Risk of electric shock.
handling or making adjustments.
Always disconnect the pump from power source before handling. This guide is designed
to help identify reasons for potential operating problems. It is not a service guide. Dismantling of
pump voids warranty. Servicing of pump other than simple cleaning of pump inlet or
impeller should be referred to the factory or its authorized service centers.
1.
Submersible Models: Submersible pump models have sealed permanently lubricated bearings and
require no additional lubrication.
2.
Pump should be checked frequently for debris and/or build up which may interfere with pump or float
switch operation.
restrictions. Pour enough water into the sump to activate the pump periodically (at least every 3 months) when
not normally in use to verify proper function.
NOTE: The manufacturer assumes no responsibility for damage or injury due to disassembly in the field.
Fig. 6 – Direct Wiring of 120V or 208-230V Single
Phase, Automatic Pump(s)
Always disconnect the pump from the power source before
The float must be able to move freely through its complete travel without any
©Copyright 2018 Liberty Pumps Inc. All rights reserved 9