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The ITT Flygt MiniCASII/FUS is a UL approved supervision relay for stator temperature and leakage sensors. It is designed for the ITT Flygt pump range 3085 - 3300 and for ITT Flygt mixers.
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In the MANUAL mode of operation, if an over temperature condition occurs, the unit will turn the pump off and lock it out. The only way power can be restored to the pump is by a manual restart, and only after the temperature has cooled to a point of safe operation.
In the AUTO RESET mode, if an over temperature condition occurs, the pump will be shutdown. The pump will be automatically restarted once the temperature has cooled to a point of safe operation.
NOTE: When selecting the AUTO RESET mode, the control panel should include a latching circuit for over temperature alarm display. This circuit will retain the information that an over temperature situation has occurred and the operator should check the possible cause for motor over temperature.
The leakage function operates in the same manner in both AUTO RESET and MANUAL modes. Specifically, once leakage is detected, there is a 5 second delay after which the pump will be shutdown or an alarm activated. Once the leakage clears, power will be restored to the pump whether in MANUAL or AUTO RESET mode.
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