OPERATING AND MAINTENANCE MANUAL
Chapter 5 - Installation
iC 215 ÷ iC 780
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The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited
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5.7 Phase Monitor
By means of a Phase Monitor device (see unit electrical schematic) the electronic controller is able to monitor the unit’s
power supply, stopping the unit in the case of missing phases or an incorrect phase sequence.
Tripping of the Phase Monitor shuts down the unit and displays alarm ALc1.
A certain level of power supply instability is perfectly normal. If the frequency with which the unit is shut down due to
tripping of the Phase Monitor tends to increase unacceptably, contact your local electricity company to find a solution.
Never tamper with the Phase Monitor under any circumstances.
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