Hi all,
I know the installation manual says to wire the panel up for 7V DC, but the old wall mounted alarm panel in my house already has wiring that is nominal 9V DC (measured 8.6V at the ends).
Would hooking up the panel to the existing higher voltage wiring fry the system or would I be able to get away with it?
I’m assuming I can’t, but I wanted to double check before spending money calling an electrician to put in a new transformer.
Normally you don’t need an electrician to change the transformer. It’s just a wall wart plugin in power supply. Do you know where it’s located?
There’s no outlets close to the existing panel wiring, what I mean is there are a pair of low voltage DC wiring coming out of a hole in the wall. There is a note where the old panel is about a low voltage transformer installed in the garage.
How long and what gauge are the wires? If they’re short and thick enough you can swap the transformer in the garage.
I wouldn’t put 8.6V on it unless the manual says you can.
Would hooking up the panel to the existing higher voltage wiring fry the system or would I be able to get away with it?
Never use any alternate voltage. Only use the included power supply for the IQ Panel 4.
The IQ Panel will support wiring of 18AWG up to about 100 feet. If the wire is thinner than that the max length is shorter.
Out of curiosity what model of panel was previously installed? That might help suggest the max length of the current wiring etc. The only ones I can recall that use a 9V transformer are Simon panels, but those are AC transformers, not DC.
It’s an old Honeywell touchscreen panel, but I couldn’t find a model number on the part I took off.
It’s an old Honeywell touchscreen panel, but I couldn’t find a model number on the part I took off.
Ah ok yeah the Lynx panels use a 9VDC transformer I think. Thank you.
If there are more conductors in the cable than are being used for power, for example if it is 22/4 cable and only two of the four wires are used for the power supply, you can double them up (2 for + and 2 for -) to effectively use a thicker gauge and limit voltage drop if the wire is fairly long.
I mention that since you measured 8.6 at the panel location on that 9V transformer.