Please note that the relay output of the IO Alarm card is a dry contact relay (with 24VAC/VDC, 5 A). In order to control another circuit that has a 230V you can't do that directly because its higher than it was design for. In order to safety control a 230V, you could use a 24V on that output and control an additional/external relay: powering its coil this relay could switch the 230 circuit of the washer.
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