I have a 9kw heater I want to hook up. There is a 3x8 AWG (w/ ground) cable going to and from the heater's control panel. The cable connects to a a 40 amp breaker, with the red and black on either side and neutral connected to the neutral bus, and ground connected to the ground bar.
The diagram looks like this, presumably with the
L1 L1 L2 L2 terminals taking the cable from the breaker, and the
O1 O2 O3 O4 terminals taking the cable which goes out to the heater.
Which wires do I connect where?