Immergas 3.021525 Instruction And Warning Book page 15

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2.6 CARTER OPENING FOR TERMINAL BOARD ACCESS.
Unscrew the screw (1), remove the washer (2) and open the carter (3) head-on (Fig. 2).
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2.7 SUPPLY CONVERSION.
In order to supply a 230 V 50 Hz single-phase voltage to the resistance, compared to a 400 V 50 Hz three-phase supply, it is necessary to
introduce the comb (1) as indicated in Fig. 3.
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