- Reaction score
- 8,797
I am sure some detectors just switch 230v to the link wire when they are set off.How old were the detectors?
>10 years then they need to be replaced, replacements being mains rf units..
I don’t see how the using the cpc can be a C1 or C2?
The interconnection is only 9 volts.
I would code it as a C3