Daikin A/C

Hi alepore
Perhaps you could attach a momentary contact or whatever method you can come up at the RELVP wiring to rule out the CBus relay.
edit Or even better at the Daikin add in board to rule out the wiring.
There is a minimum time spec for the momentary input on the add in board but I'm sure you read that.
The CBus low voltage relay has some switching time constraints.
It's in the instructions if you want to read about it.

Daikin tech support should be best able to get you sorted.
Then you can have another look at the CBus relay side of things when you know the interface is working.

It would be good to check the service indicator LED's on the interface before you call them.

 

Heya,

Finally got into the roof to check out my system, I cant remember what the model of our system is but it is a Ducted 3Phase, but it has that card on it, those cards have been around for a very long time now, I remember fitting them 15 years ago onto Dakin Systems with a phone dialer on them!

Anyway, my system is running with just input B1-BC at switch position 2. I then have a C-Bus button underneath my thermostat that can switch it on/off, along with my zones, from C-Bus. I have disconnected the on/off button on the thermostat. I like it this way, because I know if the system is running or not, based on the status of my relay. I could get an Aux input and connect my relay outputs from the card... but I am cheap .

This means I do not pulse the input of the card though, so that may be your problem, as you need to pulse it in position B.

The green LED on my card flashes at about 1-0.5 hz from memory.

Hope this helps!

J

 

Hi jboer
Remote status indication is probably the reason I chose that control method too.