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Thermal protection, Maintenance and service, Dguii/dgfu – EBARA CGUII, CGFU User Manual

Page 13

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EBARA Submersible Grinder Pumps

DGUII/DGFU

Operating, Installation, and Maintenance

EBARA

Fluid Handling

www.pumpsebara.com

13

(t) 803 327-5005 • (f) 803 327-5097

rev. 11/05

7. Disassembly and Assembly

All service should be done by factory trained or qualified personnel only.
Be sure to cut off power source before beginning disassembly.

Please contact the following for assistance:

EBARA International Corporation
Customer Service Manager
1651 Cedar Line Drive
Rock Hill, South Carolina 29730

Thermal Protection

The motor shall be equipped with a protector such as automatic cut-off device and thermal protector. The motors
described below shall incorporate Miniature Thermal Protectors (MTP) which are embedded in the windings.

When temperature of the winding raises and reaches the MTP acting point, the motor protection circuit is activated to
protect motor from over heating. Thermal protection should be wired into control circuit to disconnect power to pump
when activated.

1. Applicable model

Model: DGFU, DGFMU
(Does not apply to Model DGUII)

2. MTP Specifications:

Model

KLIXON 9700K-66-215

Type of Contact

b (Normal-contact Acting-open)

Acting Temperature

140±5°C (284±9°F)

Re-setting Temperature

85±10°C (185±18°F)

Capacity of Contact

3. Installation:

MTP shall be embedded in the stator windings as shown at right:

4. Construction:

Construction of the MTP is as shown below:

Voltage (V)

Amperage (A)

DC 24

18

AC 115

18

AC 230

13

AC 460

5.5

Maintenance and Service

CAUTION

!

This manual is related to the following products: