I have been researching installing a battery back up for my pf-100 for safe shut down. The Harman write up says models with firmware "E" built in 2011 are compatible to this mod. I know my pf-100 is older than that. I'm looking at the wiring diagram it looks like to me it should work anyway. Maybe it won't pulse the fan but it might blow it long enough to keep from smoking up the house. Any info anybody can add to this or have they installed it on a older pf-100?
Thanks
Thanks