Thermal protection, Maintenance and service, Dguii/dgfu – EBARA CGUII, CGFU User Manual
Page 13
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
!