1. Since I want the panel by our entry door, should I have the builder drop 22 gauge wire into a gang plate to power the main panel of the GC3? Is this enough to power it?
I want a second panel in our master bedroom, do I need to have another 22 gauge wire run to power it? Does it apply to either TS1 or TS2?
These would all depend on the distance of the cable run, but I would typically recommend using 18AWG. If you use 22awg, use 4 conductor cable, this is what is found when reusing cable for an existing wired keypad and you can double up the conductors for power to effectively make a bigger gauge.
3. If I wanted a siren connected to the main panel that exceeds 120 ma – what siren would you recommend and what wiring would need to be run?
Exceeding the power draw means you would need a separate power supply, a wired relay, etc. You may be better served with a couple Z-wave sirens (utilitech or fortrezz) but this post goes over a setup using an RBSNTTL Relay.
Figured this is kinda relavinte here. Will the gc3 be fine running on 13v? I would just be able to simplify my wiring if it is.
The GC3 comes with a 14VDC plug-in transformer. Always use the included transformer. Do not use an alternate power source when installing the GC3. We recommend using 18AWG cable for powering the panel, although 22AWG is fine for shorter runs under 20 feet or so.