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3 Phase Contactor
K1M
E00CONT18230
Schneider
K1M switches Immersion Heater 9/12kW on when the coil is energised.
K1M Contactor should operate 5 minutes after the BFC water heater
goes into fault mode.
If K1M is faulty the backup immersion heater will not switch.
Part Name:
Wiring Diagram Key:
Adveco Part Number:
Manufacturer's Part Details:
Function:
Specifics:
Fault
:
Testing:
1. With the power off, test continuity between the terminals 1L1 and 2T1 of K1M. The correct reading is open
circuit. Next, test continuity between terminals 1L1 and 2T1 while pressing the contactor test button. The correct
reading is now closed circuit. Repeat this test for 3L2/4T2 and 5L3/6T3. If the continuity is not correct, does not
change, or the test button is stuck, replace K1M.
2. With the power off, test continuity between A2 of K1M and the neutral of the isolator. The correct reading is
closed circuit. If it is open circuit, investigate the wiring.
3. With the power on and CB1 on, measure the voltage between 1L1/E, 3L2/E, and 5L3/E. The correct reading is
230V. If 0V is measured, proceed to test CB1.
4. With the power on, CB2 on and CB3 on, fault out the SGE water heater and wait 5 minutes before measuring the
voltage between A1 and Earth. The correct reading is 230V. If 0V is measured, proceed to test CB3, K1T, Error
Relay, and Immersion Heater Control and Overheat stat between terminals 3/4.
5. With the power on, CB2 on, CB3 on, the water heater in fault and 230V on A1, measure the voltage between
2T1/E, 4T2/E, and 6T3/E. The correct reading is 230V. If 0V is measured, replace K1M.
EB0030
3. Troubleshooting
51
EB0025-EB0028-EB0030 Control Panel -
Installation and maintenance manual
Содержание EB0025
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