I have this controller, and the manual states it can only accommodate 3 actuators. I asked the PB if it could be expanded, and they said no.
However, I found the following: P/N 5098; Relay splitter
Can I use this item to control two actuators? Meaning, both actuators would be move at the same time, and the same amounts. But if so, it would let me "cheat" and control the extra needed actuator.
Thanks for the help