sorry..not familiar with that term, but i am familiar with needing an electrician..originally i had my pool pump only wired to my intermatic. i then wanted to add my new heater and swg to a timer operated system. he put in a subpanel with relays that is slave to my timer.

swg and pump..and my ngas heater if needed go on at the same time..at shutoff on the timer, the ngas heater is shutoff..swg and pump operate for another 12 minutes for cooldown set by an adjustable relay in the sub panel that can go from 0 to 12 minutes..i could have had a longer relay but 12 minutes is working fine. the heater control circuits are wired to 120 volt on a shared breaker with my shed lights and plug in outlet..the swg and pool pump are wired to 240..he did it this way as he wanted to use a 15 amp 240 (8.3 at startup and 1.5 for the swg so say 10 amps draw and he wanted a good overhead available and to save me a bit of money over a 20 amp 240) with the heater, it would have drawn up to <5 amps so it would have been right on the edge.

the system is working great all around!