Do I need to use the 5.5v transformer or can I use the wires coming from the wall that is connected to my old panel? There are 4 wires; Black, White, Green and Red.
You should use the transformer that comes with the panel. You can use another power supply if you are confident that the proper voltage and sufficient current are being delivered but we don’t recommend that unless you really know what you’re doing. If you get it wrong you can damage the panel.
You may be able to use the wires from your keypad and connect the transformer at the other end but only if they have sufficient capacity. The best approach for using them would be to divide those 4 wires into pairs and double them up, one pair for + and one pair for -. But that’s no guarantee. If the wires are too thin or too long it won’ work and you’ll have problems with the panel.
On the other hand, the wire the transformer comes with is guaranteed to work.
Thanks Roy - much appreciated
You’re very welcome! Let us know if you have any other questions.