Hello everyone.
I want to turn my Daikin heat pump on and off. I don’t need to control the water temperature or the working mode (hot or cold), I can do it manually.
My heat pump is model EWYQ005ADVP and the digital controller is ARC448A3.
I wired the unit to turn on and off with a free contact relay, as indicated in the installation manual, but it does not work. I tried to get a response from Daikin but it is almost impossible to talk to them or get a response to an email.
I spoke with Arnold about this project:
But my unit does not support P1P2-ESP interface.
In this link you can see the documentation I have of the unit and the digital interface and some pictures and videos.
Hello!
Last weekend I bought a same heatpump!
To start the unit, you must need to connect the indoor unit, and after you gived the power, try to connect the pin 8 and pin 10 together, to start the heating mode! Do not connect he pin 9 too! Firstly try it with a simple switch, then If its started, you can do the further experiements with the relay.
And an another thing! The pin 8 and 9 (maybe the 10 too), is already connected together on the otherside of the terminal block. Firstly try to disconnect these bridges!
Firstly I always gives the power to the heatpump, and, some secounds later, I switch on the switch, that connect the pin 8 and 10. The pump start after about 3 secounds, and the compressor start after 2,5 minuter!
I hope you could start the heatpump!
Can we contact together on an another platform?