Randy, what gage wire did you run?
I started with another option, but eventually changed to SureFlys recommendation. Here’s why…. I had it tied to power after master solenoid. Then, while on ground, experienced a short in a potentiometer switch that was smoking. If that had happened in flight, I would have lost SureFly ignition after turning master off. Take the time and do it as suggested. I agree it’s a pain, but it wasn’t as bad as I anticipated AND I feel better about avoiding unintended consequences.
Yup makes sense so From the battery it is.
In the Surefly install manual it says put the fuse as close to the mag as possible, but I was wondering why not a push/pull breaker located in the cockpit over an in line fuse. Also, how does changing the oil and an electrical short on the power line for the mag relate? I don’t see the connection.
And Randy, thanks for looking up what wire was used. It’s definitely a long run from the battery to the mag.
Rich, section 2.7 of the airframe installation manual says this….
“Locate the 10A fuse (or other appropriate 10A circuit protection device) as close to the power source as possible.”
I think you want the fuse located on the battery end of the wire, not the SureFly end. (???)
Here’s how an oil change can blow that fuse. On an oil change I clipped my oil filter safety wire on engine side only for removal of filter. As I turned the filter for removal, the dangling end of that safety wire touched my SureFly hot terminal, blowing the fuse. Didn’t know it happened till runup for next flight. Now, I remove that fuse anytime I’m working in that area of my firewall. Keeps me from blowing a fuse if I accidentally touch the hot post with metal.
I'll have this setup as well, and have a 10A Circuit Breaker on my panel for an Electronic Ignition.
Understand what the manual says - but assuming it is 'acceptable' to run an 'always hot' wire directly to the 10A CB on my panel, then to the Surefly module? At least I'd have the option to pull the CB for smoke, or when performing general maintenance around the module. I think an additional 'safety fuse' by the battery would be an unnecessary additional point of failure.
Rich, section 2.7 of the airframe installation manual says this….
“Locate the 10A fuse (or other appropriate 10A circuit protection device) as close to the power source as possible.”
I think you want the fuse located on the battery end of the wire, not the SureFly end. (???)
Here’s how an oil change can blow that fuse. On an oil change I clipped my oil filter safety wire on engine side only for removal of filter. As I turned the filter for removal, the dangling end of that safety wire touched my SureFly hot terminal, blowing the fuse. Didn’t know it happened till runup for next flight. Now, I remove that fuse anytime I’m working in that area of my firewall. Keeps me from blowing a fuse if I accidentally touch the hot post with metal.
Personally I think running a (long, in the -10) unprotected wire the whole cabin length is not acceptable. But ymmv.
Ok that makes sense. I took a quick look at the Surefly diagram and it looked like the fuse was near the mag. Thought that was a bit weird having a unchecked hot wire. So if you kill the power to the Surefly does it loose programming or ? If you have a toggle switch or second breaker on the panel.