A 120 VAC power source feeds through a fused disconnect into the DDC panel terminals. Binary output, binary input, and analog output signals route between the DDC panel terminals and the VFC panel, incorporating a solid-state relay with a hand-off-auto switch. Dedicated control lines handle enable, status, alarm, and speed functions at the VFC panel.
FUSE WITH DISCONNECT VFC PANEL SPEED ALARM STATUS ENABLE BO BI BI AO 120 VAC POWER SST RELAY WITH HOA DDC PANEL TERMINALS
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