I have a newly installed Aqualink RS4 with PDA. The PCB has the capacity to run the filter pump and 3 aux relays. Currently they're wired to
AUX1 - water feature pump (sheer descent)
AUX2 - pool light
AUX3 - spa light.
I want to add some landscape lighting and have it hooked into my automation system. With the RS4 - I don't have the capacity to add more controlled relays. I gather I can use a relay splitter but why wouldn't I use one of the following options instead?
1) Splice the pool lights and spa light together on a single relay. Freeing a relay for my landscape lights
2) Splice the pool and landscape lights onto a single relay.
I'm guessing local codes (I'm in San Diego) dictate what I can do here? I know I'm limiting what I can switch on/off in isolation but I'm thinking I could live with just turning on the landscape lights when the pool light is on.
Any advice appreciated.