I haven't read a post specifically on this topic, so I'll ask (if I missed it somewhere, please pardon my redundance and just point me to the post).
I undertand that Renard needs a ZC signal in order to control the timing for dimming. Also, lights may need to be spread across house circuits In order to avoid overloading one breaker (typically 10A, 15A or 20A).
If I only have one Renard board, or I wish to use one ZC circuit for multiple Renard boards (in order to avoid redundant components and, hence, reduce cost), then do I need to ensure that all the SSRs are powered from the same phase (otherwise the ZC wouldn't match and the dimming would not be correct)?
Also, if I did actually need to spread SSRs across phases (perhaps due to appliance distribution in the rest of the house), but I still wanted to use one shared ZC signal system-wide, would this work as long as I modified the PIC firmware to offset the start delay for the PICs that are driving the SSRs on the "other" phase?
If I did this incorrectly or not at all, would the only consequence be that the dimness of all the SSRs on the "other" phase be off by a half-cycle?