EBARA DMLU Instruction And Operation Manual
Instruction and Operation Manual
Model DMLU
CALL 1-800-577-8111 FOR SALES AND SUPPORT
CALL 1-800-577-8111 FOR SALES AND SUPPORT
Safety Information and Introduction
DMLU
Instruction, Operation, and Maintenance
Project: Model: Chk’d: Date:
Contents
Section Page
Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Delivery Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Disassembly and Reassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Warnings in this manual provide information for safe use of your EBARA pump, and instructions for preventing injury to those
operating it. Please pay close attention to the instructions listed below. If there are any questions regarding these instructions,
please direct them to EBARA INTERNATIONAL CORPORATION.
1. Before lifting the pump, confirm the total weight of the unit listed in the catalog or outline drawing. Use the appropriate
hoist or crane assembly, and make sure that the load is balanced to prevent shifting during loading and off-loading.
2. Be sure to keep the pump from lying on the power and control cables, and do not use the power and control cables
to lift the pump. This can result in damage to the cables and can cause electrical shorts that can possibly lead to
fires.
3. A qualified electrician should perform all wiring and all national and local electrical codes must be observed.
4. Make sure that all equipment is properly grounded. Failure to do so can result in electric shock.
5. Disassembly and repair of the pump should only be performed by factory trained service centers. Errors made by
unqualified personnel can result in improper assembly and operation, therefore resulting in possible injury.
6. Always make sure that power switch is in OFF position and that power cable is disconnected before inspecting or
repairing the pump.
7. If pump is to be out of service for a long period of time, turn power off. If power is left on without operating pump it
can cause insulation breakdown, resulting in a possible motor short or electric shock.
8. Do not insert hands into the pump during operation.
9. Do not operate the pump unsubmerged, as overheating can occur, causing insulation breakdown and possible
electric shock.
10. If the insulation resistance is below 1M
Ω
, turn power off to unit as soon as possible, as electric shock can occur.
CALL 1-800-577-8111 FOR SALES AND SUPPORT
CALL 1-800-577-8111 FOR SALES AND SUPPORT
DMLU
Delivery Checks
Project: Model: Chk’d: Date:
When your pump is delivered, check the following items immediately.
1. Pump and accessories
a.) Confirm that no damage has occurred during transportation.
b.) Confirm that all items have been delivered.
2. Nameplate
a.) The basic specifications of the pump are listed on the nameplate. Read the pump nameplate to confirm
that the pump you received matches the specifications that you ordered.
Fig. 1 – Pump Nameplate
Specifications
Item
Liquid handled Type
Temperature
Solids Capacity Discharge size (in.)
Solid size (in.)
Materials Impeller
Phase
Hz
Motor Voltage
Starting Method
Protector
Mechanical Seal Lubricants
Maximum water depth
Installation
Specifications
Waste water
0 - 40° C
3, 4, 6
3
Cast iron
Three Phase
60 Hz
230 or 460 VAC
2.2kW : Direct start
3.7 ~ 22kW : Star-Delta start
2.2kW : Auto-cut
3.7 ~ 22kW : Thermal Protector
Turbine oil ISO VG32
26 ft.
with Quick Discharge Connector or Floor mounted
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1. Before installation:
a.) Use a megger to measure the insulation resistance between the ground wire and each phase of the motor.
Keep the ground wire off the ground during measurement. The value of each reading should be more than 20
meg-ohms.
2. Installation:
a.) Using a chain or lifting cable assembly, lower the pump into the tank or wet well.
DO NOT USE THE POWER & SENSOR CABLE TO LIFT PUMP.
b.) Do not install the pump horizontally. Ensure that the pump is upright and on a secure base. Installation of pump
with Quick Discharge Connector (QDC) shall be in accordance with manual entitled “Quick Discharge Connector.”
c.) Install pump in a location within the tank that has the least amount of turbulence.
d.) Support the discharge piping to prevent vibration.
e.) Install proper ventilation so that air will not become stagnant.
f.) Do not permit the end of the discharge piping to become submerged, as it will result in backflow when the pump stops.
g.) Set control operating levels (i.e. floats) so that pump is not running for more than ten minutes with water level at
minimum operating level as indicated in below chart. Continuous operation of pump at minimum water level will
result in automatic cut-off switch in motor to be activated.
Figure 2
3. Electrical Wiring:
Note: All electrical wiring should be performed by a qualified electrician, and in accordance with all national
and local electrical codes. Incorrect wiring can result in serious injury.
Figure 3
a.) Wiring should be performed as indicated in Figure 3.
b.) Do not allow the end of the cables to become immersed in water.
c.) Make sure pump is properly grounded using the green ground wire in the power cable. Do not connect the
green wire to the power supply.
DMLU
Installation
Motor Size
(HP) 3 5 7.5 10 15 20 30
H2 (in) 21
9
/162411/162713/162713/16303/8303/8325/
8
H1 (in) 11 11 119/16119/161211/161211/161215/
16
CALL 1-800-577-8111 FOR SALES AND SUPPORT
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