mburns
26-09-2012, 11:22 AM
Just interested to see how the communcations between the Indoor and Outdoor work, or the number 3 terminal.
I've have tried looking through quite alot of Daikin data to try and gain some insight but not not avail. I've been told to test to make sure i have at least 50V DC on this line but i always seen to have a much higher voltage than that. It does change and drops voltage then raises voltage every second or so and repeats that cycle (that is testing to a DC negative and also trying an AC neutral to see what readings i get.) e.g Drops to 180v then raises to 200v and repeats that cycle and then i put it heating or so and register different voltages.
I've seem to come the conclusion that fluctuation in voltage cycle is the indoor pcb sending to the outdoor pcb then vice versa.
I may be completely wrong but wouldn't mind someone elses insight! Thankyou
I've have tried looking through quite alot of Daikin data to try and gain some insight but not not avail. I've been told to test to make sure i have at least 50V DC on this line but i always seen to have a much higher voltage than that. It does change and drops voltage then raises voltage every second or so and repeats that cycle (that is testing to a DC negative and also trying an AC neutral to see what readings i get.) e.g Drops to 180v then raises to 200v and repeats that cycle and then i put it heating or so and register different voltages.
I've seem to come the conclusion that fluctuation in voltage cycle is the indoor pcb sending to the outdoor pcb then vice versa.
I may be completely wrong but wouldn't mind someone elses insight! Thankyou