It's so you can run something off of the 24v DC port (the PMUP, solenoid, etc). Sold as-is the FMK has no use for the 24v port, it's just running flow sensors, but since the module itself is multi-function it's there if you want. The only thing that is 'no apex required' is their ATO version of the FMM kit (ATK) with the dual optical sensors, as it comes with a PMUP pump and the wall wart dc adapter shown.
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In stand alone mode (no Apex required) the FMM is setup to accept the sensors in a preprogrammed setup. Sensor wires come prelabeled 1 & 2, just match them up and plug them in. Port 3 is designated for extra high level cut off in place of the float valve if you have no room for it while port 4 is for ATO Reservoir low level sensor.
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03-31-2017, 02:38 AM
Hybrid Mode
